[PATCH] avr: cc0 to mode_cc conversion
Senthil Kumar Selvaraj
senthil.thecoder@gmail.com
Thu Dec 17 08:45:51 GMT 2020
Georg-Johann Lay writes:
>> (I really tried to follow this https://gcc.gnu.org/contribute.html#patches,
>> but my stomach)
>> Hi there all!
>> The attached patch contains a new avr-backend, stripped from cc0.
>> The author is gcc maintainer Snethil Kumar Selvaraj (saaadhu),
>
> Hi, AFAIK Senthil has write-after-approval state. The only avr
> maintainer, at least according to MAINTAINERS, is still Denis, cf.
Yes, I'm not an avr maintainer - I only have write-after-approval access.
>
> http://gcc.gnu.org/git/?p=gcc.git;a=blob;f=MAINTAINERS;h=32f8a2b72923b791f9687d6a2d555a1780535078;hb=HEAD#l59
>
> I allowed me CCing them.
>
>> the source can be found here:
>> https://github.com/saaadhu/gcc-avr-cc0/tree/avr-cc0-squashed
>> The gcc/g++ testsuites show zero regressions, tested with:
>> https://github.com/abebeos/avr-gnu
>> and confirmed with another testsetup, see:
>> https://gcc.gnu.org/pipermail/gcc-patches/2020-December/561489.html
>> Some more background information within:
>> https://gcc.gnu.org/pipermail/gcc-patches/2020-December/561668.html
>> and
>> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92729
>> (i have this dark feeling that I did the patch submission
>> wrong... pressing
>> Send anyways!)
>
> Sometimes it's more convenient to have a .diff text file, but I don't
> see anything wrong with your submission. And what it really nice to
> have hunks defined for "(define_" or "^(define_") in your git diff
> setup. That way it's easier to track in which entity of the machine
> description a change is located. Just like when you have a change
> in the middle of a long C function, and the diff chunk spells out
> the C function in which it is located.
>
>> diff --git a/gcc/config/avr/avr-dimode.md b/gcc/config/avr/avr-dimode.md
>> index adffd2bd055..6bb44416f10 100644
>> --- a/gcc/config/avr/avr-dimode.md
>> +++ b/gcc/config/avr/avr-dimode.md
>> @@ -95,39 +95,77 @@
>> ;; "adddq3_insn" "addudq3_insn"
>> ;; "addda3_insn" "adduda3_insn"
>> ;; "addta3_insn" "adduta3_insn"
>> -(define_insn "add<mode>3_insn"
>> +(define_insn_and_split "add<mode>3_insn"
>> [(set (reg:ALL8 ACC_A)
>> (plus:ALL8 (reg:ALL8 ACC_A)
>> (reg:ALL8 ACC_B)))]
>> "avr_have_dimode"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:ALL8 ACC_A)
>> + (plus:ALL8 (reg:ALL8 ACC_A)
>> + (reg:ALL8 ACC_B)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*add<mode>3_insn"
>> + [(set (reg:ALL8 ACC_A)
>> + (plus:ALL8 (reg:ALL8 ACC_A)
>> + (reg:ALL8 ACC_B)))
>> + (clobber (reg:CC REG_CC))]
>> + "avr_have_dimode && reload_completed"
>> "%~call __adddi3"
>> - [(set_attr "adjust_len" "call")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "adjust_len" "call")])
>
> These insns are still using the accumulator model. This means
> there is no reloading involved, and you can clobber reg_cc right
> from the start.
>
> This makes life easier, at least for the non-compare insns in
> avr-dimode.md: No splitters are needed, and there's no need to
> basically duplicate each and every insn.
>
> FYI, accumulator model is used because doing it as usual results
> in inacceptably bloated code.
>
>> -(define_insn "adddi3_const8_insn"
>> +(define_insn_and_split "adddi3_const8_insn"
>> [(set (reg:DI ACC_A)
>> (plus:DI (reg:DI ACC_A)
>> (sign_extend:DI (reg:QI REG_X))))]
>> "avr_have_dimode"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:DI ACC_A)
>> + (plus:DI (reg:DI ACC_A)
>> + (sign_extend:DI (reg:QI REG_X))))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*adddi3_const8_insn"
>> + [(set (reg:DI ACC_A)
>> + (plus:DI (reg:DI ACC_A)
>> + (sign_extend:DI (reg:QI REG_X))))
>> + (clobber (reg:CC REG_CC))]
>> + "avr_have_dimode && reload_completed"
>> "%~call __adddi3_s8"
>> - [(set_attr "adjust_len" "call")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "adjust_len" "call")])
>
> Same.
>
>> ;; "adddi3_const_insn"
>> ;; "adddq3_const_insn" "addudq3_const_insn"
>> ;; "addda3_const_insn" "adduda3_const_insn"
>> ;; "addta3_const_insn" "adduta3_const_insn"
>> -(define_insn "add<mode>3_const_insn"
>> +(define_insn_and_split "add<mode>3_const_insn"
>> [(set (reg:ALL8 ACC_A)
>> (plus:ALL8 (reg:ALL8 ACC_A)
>> (match_operand:ALL8 0 "const_operand" "n Ynn")))]
>> "avr_have_dimode
>> && !s8_operand (operands[0], VOIDmode)"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:ALL8 ACC_A)
>> + (plus:ALL8 (reg:ALL8 ACC_A)
>> + (match_dup 0)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*add<mode>3_const_insn"
>> + [(set (reg:ALL8 ACC_A)
>> + (plus:ALL8 (reg:ALL8 ACC_A)
>> + (match_operand:ALL8 0 "const_operand" "n Ynn")))
>> + (clobber (reg:CC REG_CC))]
>> + "avr_have_dimode
>> + && !s8_operand (operands[0], VOIDmode)
>> + && reload_completed"
>> {
>> return avr_out_plus (insn, operands);
>> }
>> - [(set_attr "adjust_len" "plus")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "adjust_len" "plus")])
>>
>> ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
>> @@ -167,29 +205,53 @@
>> ;; "subdq3_insn" "subudq3_insn"
>> ;; "subda3_insn" "subuda3_insn"
>> ;; "subta3_insn" "subuta3_insn"
>> -(define_insn "sub<mode>3_insn"
>> +(define_insn_and_split "sub<mode>3_insn"
>> [(set (reg:ALL8 ACC_A)
>> (minus:ALL8 (reg:ALL8 ACC_A)
>> (reg:ALL8 ACC_B)))]
>> "avr_have_dimode"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:ALL8 ACC_A)
>> + (minus:ALL8 (reg:ALL8 ACC_A)
>> + (reg:ALL8 ACC_B)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*sub<mode>3_insn"
>> + [(set (reg:ALL8 ACC_A)
>> + (minus:ALL8 (reg:ALL8 ACC_A)
>> + (reg:ALL8 ACC_B)))
>> + (clobber (reg:CC REG_CC))]
>> + "avr_have_dimode && reload_completed"
>> "%~call __subdi3"
>> - [(set_attr "adjust_len" "call")
>> - (set_attr "cc" "set_czn")])
>> + [(set_attr "adjust_len" "call")])
>
> Same.
>
>> ;; "subdi3_const_insn"
>> ;; "subdq3_const_insn" "subudq3_const_insn"
>> ;; "subda3_const_insn" "subuda3_const_insn"
>> ;; "subta3_const_insn" "subuta3_const_insn"
>> -(define_insn "sub<mode>3_const_insn"
>> +(define_insn_and_split "sub<mode>3_const_insn"
>> [(set (reg:ALL8 ACC_A)
>> (minus:ALL8 (reg:ALL8 ACC_A)
>> (match_operand:ALL8 0 "const_operand" "n Ynn")))]
>> "avr_have_dimode"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:ALL8 ACC_A)
>> + (minus:ALL8 (reg:ALL8 ACC_A)
>> + (match_dup 0)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*sub<mode>3_const_insn"
>> + [(set (reg:ALL8 ACC_A)
>> + (minus:ALL8 (reg:ALL8 ACC_A)
>> + (match_operand:ALL8 0 "const_operand" "n Ynn")))
>> + (clobber (reg:CC REG_CC))]
>> + "avr_have_dimode && reload_completed"
>> {
>> return avr_out_plus (insn, operands);
>> }
>> - [(set_attr "adjust_len" "plus")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "adjust_len" "plus")])
>> ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
>> ;; Signed Saturating Addition and Subtraction
>> @@ -220,25 +282,49 @@
>> DONE;
>> })
>> -(define_insn "<code_stdname><mode>3_insn"
>> +(define_insn_and_split "<code_stdname><mode>3_insn"
>> [(set (reg:ALL8S ACC_A)
>> (ss_addsub:ALL8S (reg:ALL8S ACC_A)
>> (reg:ALL8S ACC_B)))]
>> "avr_have_dimode"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:ALL8S ACC_A)
>> + (ss_addsub:ALL8S (reg:ALL8S ACC_A)
>> + (reg:ALL8S ACC_B)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*<code_stdname><mode>3_insn"
>> + [(set (reg:ALL8S ACC_A)
>> + (ss_addsub:ALL8S (reg:ALL8S ACC_A)
>> + (reg:ALL8S ACC_B)))
>> + (clobber (reg:CC REG_CC))]
>> + "avr_have_dimode && reload_completed"
>> "%~call __<code_stdname><mode>3"
>> - [(set_attr "adjust_len" "call")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "adjust_len" "call")])
>
> Same.
>
>> -(define_insn "<code_stdname><mode>3_const_insn"
>> +(define_insn_and_split "<code_stdname><mode>3_const_insn"
>> [(set (reg:ALL8S ACC_A)
>> (ss_addsub:ALL8S (reg:ALL8S ACC_A)
>> (match_operand:ALL8S 0 "const_operand" "n Ynn")))]
>> "avr_have_dimode"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:ALL8S ACC_A)
>> + (ss_addsub:ALL8S (reg:ALL8S ACC_A)
>> + (match_dup 0)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*<code_stdname><mode>3_const_insn"
>> + [(set (reg:ALL8S ACC_A)
>> + (ss_addsub:ALL8S (reg:ALL8S ACC_A)
>> + (match_operand:ALL8S 0 "const_operand" "n Ynn")))
>> + (clobber (reg:CC REG_CC))]
>> + "avr_have_dimode && reload_completed"
>> {
>> return avr_out_plus (insn, operands);
>> }
>> - [(set_attr "adjust_len" "plus")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "adjust_len" "plus")])
>> ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
>> ;; Unsigned Saturating Addition and Subtraction
>> @@ -269,25 +355,49 @@
>> DONE;
>> })
>> -(define_insn "<code_stdname><mode>3_insn"
>> +(define_insn_and_split "<code_stdname><mode>3_insn"
>> [(set (reg:ALL8U ACC_A)
>> (us_addsub:ALL8U (reg:ALL8U ACC_A)
>> (reg:ALL8U ACC_B)))]
>> "avr_have_dimode"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:ALL8U ACC_A)
>> + (us_addsub:ALL8U (reg:ALL8U ACC_A)
>> + (reg:ALL8U ACC_B)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*<code_stdname><mode>3_insn"
>> + [(set (reg:ALL8U ACC_A)
>> + (us_addsub:ALL8U (reg:ALL8U ACC_A)
>> + (reg:ALL8U ACC_B)))
>> + (clobber (reg:CC REG_CC))]
>> + "avr_have_dimode && reload_completed"
>> "%~call __<code_stdname><mode>3"
>> - [(set_attr "adjust_len" "call")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "adjust_len" "call")])
>
> Same.
>
>> -(define_insn "<code_stdname><mode>3_const_insn"
>> +(define_insn_and_split "<code_stdname><mode>3_const_insn"
>> [(set (reg:ALL8U ACC_A)
>> (us_addsub:ALL8U (reg:ALL8U ACC_A)
>> (match_operand:ALL8U 0 "const_operand" "n Ynn")))]
>> "avr_have_dimode"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:ALL8U ACC_A)
>> + (us_addsub:ALL8U (reg:ALL8U ACC_A)
>> + (match_operand:ALL8U 0 "const_operand" "n Ynn")))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*<code_stdname><mode>3_const_insn"
>> + [(set (reg:ALL8U ACC_A)
>> + (us_addsub:ALL8U (reg:ALL8U ACC_A)
>> + (match_operand:ALL8U 0 "const_operand" "n Ynn")))
>> + (clobber (reg:CC REG_CC))]
>> + "avr_have_dimode && reload_completed"
>> {
>> return avr_out_plus (insn, operands);
>> }
>> - [(set_attr "adjust_len" "plus")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "adjust_len" "plus")])
>> ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
>> ;; Negation
>> @@ -306,13 +416,23 @@
>> DONE;
>> })
>> -(define_insn "negdi2_insn"
>> +(define_insn_and_split "negdi2_insn"
>> [(set (reg:DI ACC_A)
>> (neg:DI (reg:DI ACC_A)))]
>> "avr_have_dimode"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:DI ACC_A)
>> + (neg:DI (reg:DI ACC_A)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*negdi2_insn"
>> + [(set (reg:DI ACC_A)
>> + (neg:DI (reg:DI ACC_A)))
>> + (clobber (reg:CC REG_CC))]
>> + "avr_have_dimode && reload_completed"
>> "%~call __negdi2"
>> - [(set_attr "adjust_len" "call")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "adjust_len" "call")])
>
> Same.
>
>>
>> ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
>> @@ -322,7 +442,7 @@
>> (define_expand "conditional_jump"
>> [(set (pc)
>> (if_then_else
>> - (match_operator 0 "ordered_comparison_operator" [(cc0)
>> + (match_operator 0 "ordered_comparison_operator" [(reg:CC REG_CC)
>> (const_int 0)])
>> (label_ref (match_operand 1 "" ""))
>> (pc)))]
>> @@ -333,13 +453,14 @@
>> ;; "cbranchda4" "cbranchuda4"
>> ;; "cbranchta4" "cbranchuta4"
>> (define_expand "cbranch<mode>4"
>> - [(parallel [(match_operand:ALL8 1 "register_operand" "")
>> - (match_operand:ALL8 2 "nonmemory_operand" "")
>> - (match_operator 0 "ordered_comparison_operator" [(cc0)
>> - (const_int 0)])
>> - (label_ref (match_operand 3 "" ""))])]
>> + [(set (pc)
>> + (if_then_else (match_operator 0 "ordered_comparison_operator"
>> + [(match_operand:ALL8 1 "register_operand" "")
>> + (match_operand:ALL8 2 "nonmemory_operand" "")])
>> + (label_ref (match_operand 3 "" ""))
>> + (pc)))]
>> "avr_have_dimode"
>> - {
>> + {
>
> Indentation glitch.
>
>> rtx acc_a = gen_rtx_REG (<MODE>mode, ACC_A);
>> avr_fix_inputs (operands, 1 << 2, regmask (<MODE>mode,
>> ACC_A));
>> @@ -348,19 +469,36 @@
>> if (s8_operand (operands[2], VOIDmode))
>> {
>> emit_move_insn (gen_rtx_REG (QImode, REG_X), operands[2]);
>> - emit_insn (gen_compare_const8_di2 ());
>> + emit_jump_insn (gen_cbranch_const8_di2_split (operands[0], operands[3]));
>> }
>> else if (const_operand (operands[2], GET_MODE (operands[2])))
>> {
>> - emit_insn (gen_compare_const_<mode>2 (operands[2]));
>> + emit_jump_insn (gen_cbranch_const_<mode>2_split (operands[0],
>> + operands[2],
>> + operands[3]));
>> }
>> else
>> {
>> emit_move_insn (gen_rtx_REG (<MODE>mode, ACC_B), operands[2]);
>> - emit_insn (gen_compare_<mode>2 ());
>> + emit_jump_insn (gen_cbranch_<mode>2_split (operands[0], operands[3]));
>> }
>> + DONE;
>> + })
>> - emit_jump_insn (gen_conditional_jump (operands[0],
>> operands[3]));
>> +(define_insn_and_split "cbranch_<mode>2_split"
>> + [(set (pc)
>> + (if_then_else (match_operator 0 "ordered_comparison_operator"
>> + [(reg:ALL8 ACC_A)
>> + (reg:ALL8 ACC_B)])
>> + (label_ref (match_operand 1 "" ""))
>> + (pc)))]
>> + "avr_have_dimode"
>> + "#"
>> + "&& reload_completed"
>> + [(const_int 0)]
>> + {
>> + emit_insn (gen_compare_<mode>2 ());
>> + emit_jump_insn (gen_conditional_jump (operands[0], operands[1]));
>> DONE;
>> })
>> @@ -369,39 +507,74 @@
>> ;; "compare_da2" "compare_uda2"
>> ;; "compare_ta2" "compare_uta2"
>> (define_insn "compare_<mode>2"
>> - [(set (cc0)
>> - (compare (reg:ALL8 ACC_A)
>> + [(set (reg:CC REG_CC)
>> + (compare:CC (reg:ALL8 ACC_A)
>> (reg:ALL8 ACC_B)))]
>> - "avr_have_dimode"
>> + "reload_completed && avr_have_dimode"
>> "%~call __cmpdi2"
>> - [(set_attr "adjust_len" "call")
>> - (set_attr "cc" "compare")])
>> + [(set_attr "adjust_len" "call")])
>
> Same.
>
>> +
>> +(define_insn_and_split "cbranch_const8_di2_split"
>> + [(set (pc)
>> + (if_then_else (match_operator 0 "ordered_comparison_operator"
>> + [(reg:DI ACC_A)
>> + (sign_extend:DI (reg:QI REG_X))])
>> + (label_ref (match_operand 1 "" ""))
>> + (pc)))]
>> + "avr_have_dimode"
>> + "#"
>> + "&& reload_completed"
>> + [(const_int 0)]
>> + {
>> + emit_insn (gen_compare_const8_di2 ());
>> + emit_jump_insn (gen_conditional_jump (operands[0], operands[1]));
>> + DONE;
>> + })
>> (define_insn "compare_const8_di2"
>> - [(set (cc0)
>> - (compare (reg:DI ACC_A)
>> + [(set (reg:CC REG_CC)
>> + (compare:CC (reg:DI ACC_A)
>> (sign_extend:DI (reg:QI REG_X))))]
>
> Indentation. Maybe use an editor that understands lisp at least?
>
>> - "avr_have_dimode"
>> + "reload_completed && avr_have_dimode"
>> "%~call __cmpdi2_s8"
>> - [(set_attr "adjust_len" "call")
>> - (set_attr "cc" "compare")])
>> + [(set_attr "adjust_len" "call")])
>> +
>> +(define_insn_and_split "cbranch_const_<mode>2_split"
>> + [(set (pc)
>> + (if_then_else (match_operator 0 "ordered_comparison_operator"
>> + [(reg:ALL8 ACC_A)
>> + (match_operand:ALL8 1 "const_operand" "n Ynn")])
>> + (label_ref (match_operand 2 "" ""))
>> + (pc)))
>> + (clobber (match_scratch:QI 3 "=&d"))]
>> + "avr_have_dimode
>> + && !s8_operand (operands[1], VOIDmode)"
>> + "#"
>> + "&& reload_completed"
>> + [(const_int 0)]
>> + {
>> + emit_insn (gen_compare_const_<mode>2 (operands[1], operands[3]));
>> + emit_jump_insn (gen_conditional_jump (operands[0], operands[2]));
>> + DONE;
>> + })
>> +
>> ;; "compare_const_di2"
>> ;; "compare_const_dq2" "compare_const_udq2"
>> ;; "compare_const_da2" "compare_const_uda2"
>> ;; "compare_const_ta2" "compare_const_uta2"
>> (define_insn "compare_const_<mode>2"
>> - [(set (cc0)
>> - (compare (reg:ALL8 ACC_A)
>> + [(set (reg:CC REG_CC)
>> + (compare:CC (reg:ALL8 ACC_A)
>> (match_operand:ALL8 0 "const_operand" "n Ynn")))
>
> Indent.
>
>> - (clobber (match_scratch:QI 1 "=&d"))]
>> - "avr_have_dimode
>> + (clobber (match_operand:QI 1 "register_operand" "=&d"))]
>> + "reload_completed
>> + && avr_have_dimode
>> && !s8_operand (operands[0], VOIDmode)"
>> {
>> return avr_out_compare64 (insn, operands, NULL);
>> }
>> - [(set_attr "adjust_len" "compare64")
>> - (set_attr "cc" "compare")])
>> + [(set_attr "adjust_len" "compare64")])
>>
>> ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
>> @@ -444,14 +617,26 @@
>> ;; "ashludq3_insn" "ashrudq3_insn" "lshrudq3_insn" "rotludq3_insn"
>> ;; "ashluda3_insn" "ashruda3_insn" "lshruda3_insn" "rotluda3_insn"
>> ;; "ashluta3_insn" "ashruta3_insn" "lshruta3_insn" "rotluta3_insn"
>> -(define_insn "<code_stdname><mode>3_insn"
>> +(define_insn_and_split "<code_stdname><mode>3_insn"
>> [(set (reg:ALL8 ACC_A)
>> (di_shifts:ALL8 (reg:ALL8 ACC_A)
>> (reg:QI 16)))]
>> "avr_have_dimode"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:ALL8 ACC_A)
>> + (di_shifts:ALL8 (reg:ALL8 ACC_A)
>> + (reg:QI 16)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*<code_stdname><mode>3_insn"
>> + [(set (reg:ALL8 ACC_A)
>> + (di_shifts:ALL8 (reg:ALL8 ACC_A)
>> + (reg:QI 16)))
>> + (clobber (reg:CC REG_CC))]
>> + "avr_have_dimode && reload_completed"
>> "%~call __<code_stdname>di3"
>> - [(set_attr "adjust_len" "call")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "adjust_len" "call")])
>
> Same: No need to use a splitter.
>
>> ;; "umulsidi3"
>> ;; "mulsidi3"
>> @@ -475,7 +660,8 @@
>> ;; "umulsidi3_insn"
>> ;; "mulsidi3_insn"
>> -(define_insn "<extend_u>mulsidi3_insn"
>> +
>> +(define_insn_and_split "<extend_u>mulsidi3_insn"
>> [(set (reg:DI ACC_A)
>> (mult:DI (any_extend:DI (reg:SI 18))
>> (any_extend:DI (reg:SI 22))))
>> @@ -483,6 +669,24 @@
>> (clobber (reg:HI REG_Z))]
>> "avr_have_dimode
>> && AVR_HAVE_MUL"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:DI ACC_A)
>> + (mult:DI (any_extend:DI (reg:SI 18))
>> + (any_extend:DI (reg:SI 22))))
>> + (clobber (reg:HI REG_X))
>> + (clobber (reg:HI REG_Z))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*<extend_u>mulsidi3_insn"
>> + [(set (reg:DI ACC_A)
>> + (mult:DI (any_extend:DI (reg:SI 18))
>> + (any_extend:DI (reg:SI 22))))
>> + (clobber (reg:HI REG_X))
>> + (clobber (reg:HI REG_Z))
>> + (clobber (reg:CC REG_CC))]
>> + "avr_have_dimode
>> + && AVR_HAVE_MUL
>> + && reload_completed"
>> "%~call __<extend_u>mulsidi3"
>> - [(set_attr "adjust_len" "call")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "adjust_len" "call")])
>
> Same.
>
>> diff --git a/gcc/config/avr/avr-fixed.md b/gcc/config/avr/avr-fixed.md
>> index 737fe970d3e..39cd7c4eea8 100644
>> --- a/gcc/config/avr/avr-fixed.md
>> +++ b/gcc/config/avr/avr-fixed.md
>> @@ -56,27 +56,53 @@
>> TA UTA
>> QI HI SI DI])
>> -(define_insn "fract<FIXED_B:mode><FIXED_A:mode>2"
>> +(define_insn_and_split "fract<FIXED_B:mode><FIXED_A:mode>2"
>> [(set (match_operand:FIXED_A 0 "register_operand" "=r")
>> (fract_convert:FIXED_A
>> (match_operand:FIXED_B 1 "register_operand" "r")))]
>> "<FIXED_B:MODE>mode != <FIXED_A:MODE>mode"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (fract_convert:FIXED_A
>> + (match_dup 1)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*fract<FIXED_B:mode><FIXED_A:mode>2"
>> + [(set (match_operand:FIXED_A 0 "register_operand" "=r")
>> + (fract_convert:FIXED_A
>> + (match_operand:FIXED_B 1 "register_operand" "r")))
>> + (clobber (reg:CC REG_CC))]
>> + "<FIXED_B:MODE>mode != <FIXED_A:MODE>mode
>> + && reload_completed"
>> {
>> return avr_out_fract (insn, operands, true, NULL);
>> }
>> - [(set_attr "cc" "clobber")
>> - (set_attr "adjust_len" "sfract")])
>> + [(set_attr "adjust_len" "sfract")])
>> -(define_insn "fractuns<FIXED_B:mode><FIXED_A:mode>2"
>> +(define_insn_and_split "fractuns<FIXED_B:mode><FIXED_A:mode>2"
>> [(set (match_operand:FIXED_A 0 "register_operand" "=r")
>> (unsigned_fract_convert:FIXED_A
>> (match_operand:FIXED_B 1 "register_operand" "r")))]
>> "<FIXED_B:MODE>mode != <FIXED_A:MODE>mode"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (unsigned_fract_convert:FIXED_A
>> + (match_dup 1)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*fractuns<FIXED_B:mode><FIXED_A:mode>2"
>> + [(set (match_operand:FIXED_A 0 "register_operand" "=r")
>> + (unsigned_fract_convert:FIXED_A
>> + (match_operand:FIXED_B 1 "register_operand" "r")))
>> + (clobber (reg:CC REG_CC))]
>> + "<FIXED_B:MODE>mode != <FIXED_A:MODE>mode
>> + && reload_completed"
>> {
>> return avr_out_fract (insn, operands, false, NULL);
>> }
>> - [(set_attr "cc" "clobber")
>> - (set_attr "adjust_len" "ufract")])
>> + [(set_attr "adjust_len" "ufract")])
>> ;******************************************************************************
>> ;** Saturated Addition and Subtraction
>> @@ -92,29 +118,53 @@
>> ;; "ssaddqq3" "ssaddhq3" "ssaddha3" "ssaddsq3" "ssaddsa3"
>> ;; "sssubqq3" "sssubhq3" "sssubha3" "sssubsq3" "sssubsa3"
>> -(define_insn "<code_stdname><mode>3"
>> +(define_insn_and_split "<code_stdname><mode>3"
>> [(set (match_operand:ALL124S 0 "register_operand" "=??d,d")
>> (ss_addsub:ALL124S (match_operand:ALL124S 1 "register_operand" "<abelian>0,0")
>> (match_operand:ALL124S 2 "nonmemory_operand" "r,Ynn")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (ss_addsub:ALL124S (match_dup 1)
>> + (match_dup 2)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*<code_stdname><mode>3"
>> + [(set (match_operand:ALL124S 0 "register_operand" "=??d,d")
>> + (ss_addsub:ALL124S (match_operand:ALL124S 1 "register_operand" "<abelian>0,0")
>> + (match_operand:ALL124S 2 "nonmemory_operand" "r,Ynn")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> return avr_out_plus (insn, operands);
>> }
>> - [(set_attr "cc" "clobber")
>> - (set_attr "adjust_len" "plus")])
>> + [(set_attr "adjust_len" "plus")])
>> ;; "usadduqq3" "usadduhq3" "usadduha3" "usaddusq3" "usaddusa3"
>> ;; "ussubuqq3" "ussubuhq3" "ussubuha3" "ussubusq3" "ussubusa3"
>> -(define_insn "<code_stdname><mode>3"
>> +(define_insn_and_split "<code_stdname><mode>3"
>> [(set (match_operand:ALL124U 0 "register_operand" "=??r,d")
>> (us_addsub:ALL124U (match_operand:ALL124U 1 "register_operand" "<abelian>0,0")
>> (match_operand:ALL124U 2 "nonmemory_operand" "r,Ynn")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (us_addsub:ALL124U (match_dup 1)
>> + (match_dup 2)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*<code_stdname><mode>3"
>> + [(set (match_operand:ALL124U 0 "register_operand" "=??r,d")
>> + (us_addsub:ALL124U (match_operand:ALL124U 1 "register_operand" "<abelian>0,0")
>> + (match_operand:ALL124U 2 "nonmemory_operand" "r,Ynn")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> return avr_out_plus (insn, operands);
>> }
>> - [(set_attr "cc" "clobber")
>> - (set_attr "adjust_len" "plus")])
>> + [(set_attr "adjust_len" "plus")])
>> ;******************************************************************************
>> ;** Saturated Negation and Absolute Value
>> @@ -134,21 +184,41 @@
>> DONE;
>> })
>> -(define_insn "ssnegqq2"
>> +(define_insn_and_split "ssnegqq2"
>> [(set (match_operand:QQ 0 "register_operand" "=r")
>> (ss_neg:QQ (match_operand:QQ 1 "register_operand" "0")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (ss_neg:QQ (match_dup 1)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*ssnegqq2"
>> + [(set (match_operand:QQ 0 "register_operand" "=r")
>> + (ss_neg:QQ (match_operand:QQ 1 "register_operand" "0")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "neg %0\;brvc 0f\;dec %0\;0:"
>> - [(set_attr "cc" "clobber")
>> - (set_attr "length" "3")])
>> + [(set_attr "length" "3")])
>> -(define_insn "ssabsqq2"
>> +(define_insn_and_split "ssabsqq2"
>> [(set (match_operand:QQ 0 "register_operand" "=r")
>> (ss_abs:QQ (match_operand:QQ 1 "register_operand" "0")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (ss_abs:QQ (match_dup 1)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*ssabsqq2"
>> + [(set (match_operand:QQ 0 "register_operand" "=r")
>> + (ss_abs:QQ (match_operand:QQ 1 "register_operand" "0")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "sbrc %0,7\;neg %0\;sbrc %0,7\;dec %0"
>> - [(set_attr "cc" "clobber")
>> - (set_attr "length" "4")])
>> + [(set_attr "length" "4")])
>> ;; "ssneghq2" "ssnegha2" "ssnegsq2" "ssnegsa2"
>> ;; "ssabshq2" "ssabsha2" "ssabssq2" "ssabssa2"
>> @@ -166,23 +236,43 @@
>> ;; "*ssneghq2" "*ssnegha2"
>> ;; "*ssabshq2" "*ssabsha2"
>> -(define_insn "*<code_stdname><mode>2"
>> +(define_insn_and_split "*<code_stdname><mode>2_split"
>> [(set (reg:ALL2S 24)
>> (ss_abs_neg:ALL2S (reg:ALL2S 24)))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:ALL2S 24)
>> + (ss_abs_neg:ALL2S (reg:ALL2S 24)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*<code_stdname><mode>2"
>> + [(set (reg:ALL2S 24)
>> + (ss_abs_neg:ALL2S (reg:ALL2S 24)))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "%~call __<code_stdname>_2"
>> - [(set_attr "type" "xcall")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "xcall")])
>
> Similar to the accumulator insns from avr-dimode.md:
> avr BE uses explicit modelling of many libgcc calls so it
> can describe which regs are (*not*) clobbered to exploit
> the reduced callee-clobbered register footprint (and in some
> cases use non-ABI interfaces when they are much better).
>
> Rationale is the same: Using constraints bloats the code
> beyond recognition, so explicit hard reg modelling is used
> (which has its problems on its own which is a different story
> and beyond scope here).
>
> Again, no regs need reloading because such insns only involve
> hard regs, and we can add reg_cc clobber right from the start:
> No splitters are needed.
>
>> ;; "*ssnegsq2" "*ssnegsa2"
>> ;; "*ssabssq2" "*ssabssa2"
>> -(define_insn "*<code_stdname><mode>2"
>> +(define_insn_and_split "*<code_stdname><mode>2_split"
>> [(set (reg:ALL4S 22)
>> (ss_abs_neg:ALL4S (reg:ALL4S 22)))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:ALL4S 22)
>> + (ss_abs_neg:ALL4S (reg:ALL4S 22)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*<code_stdname><mode>2"
>> + [(set (reg:ALL4S 22)
>> + (ss_abs_neg:ALL4S (reg:ALL4S 22)))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "%~call __<code_stdname>_4"
>> - [(set_attr "type" "xcall")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "xcall")])
>
> Same.
>
>> ;******************************************************************************
>> ; mul
>> @@ -200,23 +290,47 @@
>> DONE;
>> })
>> -(define_insn "mulqq3_enh"
>> +(define_insn_and_split "mulqq3_enh"
>> [(set (match_operand:QQ 0 "register_operand" "=r")
>> (mult:QQ (match_operand:QQ 1 "register_operand" "a")
>> (match_operand:QQ 2 "register_operand" "a")))]
>> "AVR_HAVE_MUL"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (mult:QQ (match_dup 1)
>> + (match_dup 2)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*mulqq3_enh"
>> + [(set (match_operand:QQ 0 "register_operand" "=r")
>> + (mult:QQ (match_operand:QQ 1 "register_operand" "a")
>> + (match_operand:QQ 2 "register_operand" "a")))
>> + (clobber (reg:CC REG_CC))]
>> + "AVR_HAVE_MUL && reload_completed"
>> "fmuls %1,%2\;dec r1\;brvs 0f\;inc r1\;0:\;mov %0,r1\;clr __zero_reg__"
>> - [(set_attr "length" "6")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "length" "6")])
>> -(define_insn "muluqq3_enh"
>> +(define_insn_and_split "muluqq3_enh"
>> [(set (match_operand:UQQ 0 "register_operand" "=r")
>> (mult:UQQ (match_operand:UQQ 1 "register_operand" "r")
>> (match_operand:UQQ 2 "register_operand" "r")))]
>> "AVR_HAVE_MUL"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (mult:UQQ (match_dup 1)
>> + (match_dup 2)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*muluqq3_enh"
>> + [(set (match_operand:UQQ 0 "register_operand" "=r")
>> + (mult:UQQ (match_operand:UQQ 1 "register_operand" "r")
>> + (match_operand:UQQ 2 "register_operand" "r")))
>> + (clobber (reg:CC REG_CC))]
>> + "AVR_HAVE_MUL && reload_completed"
>> "mul %1,%2\;mov %0,r1\;clr __zero_reg__"
>> - [(set_attr "length" "3")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "length" "3")])
>> (define_expand "mulqq3_nomul"
>> [(set (reg:QQ 24)
>> @@ -255,16 +369,32 @@
>> avr_fix_inputs (operands, 1 << 2, regmask (UQQmode, 22));
>> })
>> -(define_insn "*mulqq3.call"
>> +(define_insn_and_split "*mulqq3.call_split"
>> [(set (reg:QQ 23)
>> (mult:QQ (reg:QQ 24)
>> (reg:QQ 25)))
>> (clobber (reg:QI 22))
>> (clobber (reg:HI 24))]
>> "!AVR_HAVE_MUL"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:QQ 23)
>> + (mult:QQ (reg:QQ 24)
>> + (reg:QQ 25)))
>> + (clobber (reg:QI 22))
>> + (clobber (reg:HI 24))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*mulqq3.call"
>> + [(set (reg:QQ 23)
>> + (mult:QQ (reg:QQ 24)
>> + (reg:QQ 25)))
>> + (clobber (reg:QI 22))
>> + (clobber (reg:HI 24))
>> + (clobber (reg:CC REG_CC))]
>> + "!AVR_HAVE_MUL && reload_completed"
>> "%~call __mulqq3"
>> - [(set_attr "type" "xcall")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "xcall")])
>
> Same.
>
>>
>> ;; "mulhq3" "muluhq3"
>> @@ -288,15 +418,29 @@
>> ;; "*mulhq3.call" "*muluhq3.call"
>> ;; "*mulha3.call" "*muluha3.call"
>> -(define_insn "*mul<mode>3.call"
>> +(define_insn_and_split "*mul<mode>3.call_split"
>> [(set (reg:ALL2QA 24)
>> (mult:ALL2QA (reg:ALL2QA 18)
>> (reg:ALL2QA 26)))
>> (clobber (reg:HI 22))]
>> "AVR_HAVE_MUL"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:ALL2QA 24)
>> + (mult:ALL2QA (reg:ALL2QA 18)
>> + (reg:ALL2QA 26)))
>> + (clobber (reg:HI 22))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*mul<mode>3.call"
>> + [(set (reg:ALL2QA 24)
>> + (mult:ALL2QA (reg:ALL2QA 18)
>> + (reg:ALL2QA 26)))
>> + (clobber (reg:HI 22))
>> + (clobber (reg:CC REG_CC))]
>> + "AVR_HAVE_MUL && reload_completed"
>> "%~call __mul<mode>3"
>> - [(set_attr "type" "xcall")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "xcall")])
>
> Same.
>
>>
>> ;; On the enhanced core, don't clobber either input and use a separate output
>> @@ -318,14 +462,26 @@
>> })
>> ;; "*mulsa3.call" "*mulusa3.call"
>> -(define_insn "*mul<mode>3.call"
>> +(define_insn_and_split "*mul<mode>3.call_split"
>> [(set (reg:ALL4A 24)
>> (mult:ALL4A (reg:ALL4A 16)
>> (reg:ALL4A 20)))]
>> "AVR_HAVE_MUL"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:ALL4A 24)
>> + (mult:ALL4A (reg:ALL4A 16)
>> + (reg:ALL4A 20)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*mul<mode>3.call"
>> + [(set (reg:ALL4A 24)
>> + (mult:ALL4A (reg:ALL4A 16)
>> + (reg:ALL4A 20)))
>> + (clobber (reg:CC REG_CC))]
>> + "AVR_HAVE_MUL && reload_completed"
>> "%~call __mul<mode>3"
>> - [(set_attr "type" "xcall")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "xcall")])
>
> Same.
>
>> ; / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / /
>> / / / / / /
>> ; div
>> @@ -351,15 +507,29 @@
>>
>> ;; "*divqq3.call" "*udivuqq3.call"
>> -(define_insn "*<code><mode>3.call"
>> +(define_insn_and_split "*<code><mode>3.call_split"
>> [(set (reg:ALL1Q 24)
>> (usdiv:ALL1Q (reg:ALL1Q 25)
>> (reg:ALL1Q 22)))
>> (clobber (reg:QI 25))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:ALL1Q 24)
>> + (usdiv:ALL1Q (reg:ALL1Q 25)
>> + (reg:ALL1Q 22)))
>> + (clobber (reg:QI 25))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*<code><mode>3.call"
>> + [(set (reg:ALL1Q 24)
>> + (usdiv:ALL1Q (reg:ALL1Q 25)
>> + (reg:ALL1Q 22)))
>> + (clobber (reg:QI 25))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "%~call __<code><mode>3"
>> - [(set_attr "type" "xcall")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "xcall")])
>
> Same.
>
>> ;; "divhq3" "udivuhq3"
>> ;; "divha3" "udivuha3"
>> @@ -382,16 +552,32 @@
>> ;; "*divhq3.call" "*udivuhq3.call"
>> ;; "*divha3.call" "*udivuha3.call"
>> -(define_insn "*<code><mode>3.call"
>> +(define_insn_and_split "*<code><mode>3.call_split"
>> [(set (reg:ALL2QA 24)
>> (usdiv:ALL2QA (reg:ALL2QA 26)
>> (reg:ALL2QA 22)))
>> (clobber (reg:HI 26))
>> (clobber (reg:QI 21))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:ALL2QA 24)
>> + (usdiv:ALL2QA (reg:ALL2QA 26)
>> + (reg:ALL2QA 22)))
>> + (clobber (reg:HI 26))
>> + (clobber (reg:QI 21))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*<code><mode>3.call"
>> + [(set (reg:ALL2QA 24)
>> + (usdiv:ALL2QA (reg:ALL2QA 26)
>> + (reg:ALL2QA 22)))
>> + (clobber (reg:HI 26))
>> + (clobber (reg:QI 21))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "%~call __<code><mode>3"
>> - [(set_attr "type" "xcall")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "xcall")])
>
> Same.
>
>> ;; Note the first parameter gets passed in already offset by 2
>> bytes
>> @@ -414,16 +600,32 @@
>> })
>> ;; "*divsa3.call" "*udivusa3.call"
>> -(define_insn "*<code><mode>3.call"
>> +(define_insn_and_split "*<code><mode>3.call_split"
>> [(set (reg:ALL4A 22)
>> (usdiv:ALL4A (reg:ALL4A 24)
>> (reg:ALL4A 18)))
>> (clobber (reg:HI 26))
>> (clobber (reg:HI 30))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:ALL4A 22)
>> + (usdiv:ALL4A (reg:ALL4A 24)
>> + (reg:ALL4A 18)))
>> + (clobber (reg:HI 26))
>> + (clobber (reg:HI 30))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*<code><mode>3.call"
>> + [(set (reg:ALL4A 22)
>> + (usdiv:ALL4A (reg:ALL4A 24)
>> + (reg:ALL4A 18)))
>> + (clobber (reg:HI 26))
>> + (clobber (reg:HI 30))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "%~call __<code><mode>3"
>> - [(set_attr "type" "xcall")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "xcall")])
>
> Same.
>
>>
>> ;******************************************************************************
>> @@ -474,51 +676,109 @@
>> ;; "roundqq3_const" "rounduqq3_const"
>> ;; "roundhq3_const" "rounduhq3_const" "roundha3_const" "rounduha3_const"
>> ;; "roundsq3_const" "roundusq3_const" "roundsa3_const" "roundusa3_const"
>> -(define_insn "round<mode>3_const"
>> +(define_insn_and_split "round<mode>3_const"
>> [(set (match_operand:ALL124QA 0 "register_operand" "=d")
>> (unspec:ALL124QA [(match_operand:ALL124QA 1 "register_operand" "0")
>> (match_operand:HI 2 "const_int_operand" "n")
>> (const_int 0)]
>> UNSPEC_ROUND))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (unspec:ALL124QA [(match_dup 1)
>> + (match_dup 2)
>> + (const_int 0)]
>> + UNSPEC_ROUND))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*round<mode>3_const"
>> + [(set (match_operand:ALL124QA 0 "register_operand" "=d")
>> + (unspec:ALL124QA [(match_operand:ALL124QA 1 "register_operand" "0")
>> + (match_operand:HI 2 "const_int_operand" "n")
>> + (const_int 0)]
>> + UNSPEC_ROUND))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> return avr_out_round (insn, operands);
>> }
>> - [(set_attr "cc" "clobber")
>> - (set_attr "adjust_len" "round")])
>> + [(set_attr "adjust_len" "round")])
>>
>> ;; "*roundqq3.libgcc" "*rounduqq3.libgcc"
>> -(define_insn "*round<mode>3.libgcc"
>> +(define_insn_and_split "*round<mode>3.libgcc_split"
>> [(set (reg:ALL1Q 24)
>> (unspec:ALL1Q [(reg:ALL1Q 22)
>> (reg:QI 24)] UNSPEC_ROUND))
>> (clobber (reg:ALL1Q 22))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:ALL1Q 24)
>> + (unspec:ALL1Q [(reg:ALL1Q 22)
>> + (reg:QI 24)] UNSPEC_ROUND))
>> + (clobber (reg:ALL1Q 22))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*round<mode>3.libgcc"
>> + [(set (reg:ALL1Q 24)
>> + (unspec:ALL1Q [(reg:ALL1Q 22)
>> + (reg:QI 24)] UNSPEC_ROUND))
>> + (clobber (reg:ALL1Q 22))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "%~call __round<mode>3"
>> - [(set_attr "type" "xcall")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "xcall")])
>
> Same.
>
>> ;; "*roundhq3.libgcc" "*rounduhq3.libgcc"
>> ;; "*roundha3.libgcc" "*rounduha3.libgcc"
>> -(define_insn "*round<mode>3.libgcc"
>> +(define_insn_and_split "*round<mode>3.libgcc_split"
>> [(set (reg:ALL2QA 24)
>> (unspec:ALL2QA [(reg:ALL2QA 22)
>> (reg:QI 24)] UNSPEC_ROUND))
>> (clobber (reg:ALL2QA 22))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:ALL2QA 24)
>> + (unspec:ALL2QA [(reg:ALL2QA 22)
>> + (reg:QI 24)] UNSPEC_ROUND))
>> + (clobber (reg:ALL2QA 22))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*round<mode>3.libgcc"
>> + [(set (reg:ALL2QA 24)
>> + (unspec:ALL2QA [(reg:ALL2QA 22)
>> + (reg:QI 24)] UNSPEC_ROUND))
>> + (clobber (reg:ALL2QA 22))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "%~call __round<mode>3"
>> - [(set_attr "type" "xcall")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "xcall")])
>
> Same.
>
>> ;; "*roundsq3.libgcc" "*roundusq3.libgcc"
>> ;; "*roundsa3.libgcc" "*roundusa3.libgcc"
>> -(define_insn "*round<mode>3.libgcc"
>> +(define_insn_and_split "*round<mode>3.libgcc_split"
>> [(set (reg:ALL4QA 22)
>> (unspec:ALL4QA [(reg:ALL4QA 18)
>> (reg:QI 24)] UNSPEC_ROUND))
>> (clobber (reg:ALL4QA 18))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:ALL4QA 22)
>> + (unspec:ALL4QA [(reg:ALL4QA 18)
>> + (reg:QI 24)] UNSPEC_ROUND))
>> + (clobber (reg:ALL4QA 18))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*round<mode>3.libgcc"
>> + [(set (reg:ALL4QA 22)
>> + (unspec:ALL4QA [(reg:ALL4QA 18)
>> + (reg:QI 24)] UNSPEC_ROUND))
>> + (clobber (reg:ALL4QA 18))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "%~call __round<mode>3"
>> - [(set_attr "type" "xcall")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "xcall")])
>
> Same.
>
>> diff --git a/gcc/config/avr/avr-protos.h b/gcc/config/avr/avr-protos.h
>> index 16c894ce3c3..1474b74227e 100644
>> --- a/gcc/config/avr/avr-protos.h
>> +++ b/gcc/config/avr/avr-protos.h
> [snip]
>
>> diff --git a/gcc/config/avr/avr.c b/gcc/config/avr/avr.c
>> index 61168edfdae..2322fbdf69b 100644
>> --- a/gcc/config/avr/avr.c
>> +++ b/gcc/config/avr/avr.c
>> @@ -195,6 +195,10 @@ rtx tmp_reg_rtx;
>> extern GTY(()) rtx zero_reg_rtx;
>> rtx zero_reg_rtx;
>> +/* Condition Codoe register RTX (reg:CC REG_CC) */
>> +extern GTY(()) rtx cc_reg_rtx;
>> +rtx cc_reg_rtx;
>> +
>> /* RTXs for all general purpose registers as QImode */
>> extern GTY(()) rtx all_regs_rtx[32];
>> rtx all_regs_rtx[32];
>> @@ -376,10 +380,10 @@ make_avr_pass_casesi (gcc::context *ctxt)
>> /* Make one parallel insn with all the patterns from insns i[0]..i[5]. */
>> static rtx_insn*
>> -avr_parallel_insn_from_insns (rtx_insn *i[6])
>> +avr_parallel_insn_from_insns (rtx_insn *i[5])
>> {
>> - rtvec vec = gen_rtvec (6, PATTERN (i[0]), PATTERN (i[1]), PATTERN (i[2]),
>> - PATTERN (i[3]), PATTERN (i[4]), PATTERN (i[5]));
>> + rtvec vec = gen_rtvec (5, PATTERN (i[0]), PATTERN (i[1]), PATTERN (i[2]),
>> + PATTERN (i[3]), PATTERN (i[4]));
>> start_sequence();
>> emit (gen_rtx_PARALLEL (VOIDmode, vec));
>> rtx_insn *insn = get_insns();
>> @@ -397,22 +401,21 @@ avr_parallel_insn_from_insns (rtx_insn *i[6])
>> pattern casesi_<mode>_sequence forged from the sequence to recog_data. */
>> static bool
>> -avr_is_casesi_sequence (basic_block bb, rtx_insn *insn, rtx_insn *insns[6])
>> +avr_is_casesi_sequence (basic_block bb, rtx_insn *insn, rtx_insn *insns[5])
>> {
>> - rtx set_5, set_0;
>> + rtx set_4, set_0;
>> /* A first and quick test for a casesi sequences. As a side
>> effect of
>> - the test, harvest respective insns to INSNS[0..5]. */
>> + the test, harvest respective insns to INSNS[0..4]. */
>> - if (!(JUMP_P (insns[5] = insn)
>> + if (!(JUMP_P (insns[4] = insn)
>> // casesi is the only insn that comes up with UNSPEC_INDEX_JMP,
>> // hence the following test ensures that we are actually dealing
>> // with code from casesi.
>> - && (set_5 = single_set (insns[5]))
>> - && UNSPEC == GET_CODE (SET_SRC (set_5))
>> - && UNSPEC_INDEX_JMP == XINT (SET_SRC (set_5), 1)
>> + && (set_4 = single_set (insns[4]))
>> + && UNSPEC == GET_CODE (SET_SRC (set_4))
>> + && UNSPEC_INDEX_JMP == XINT (SET_SRC (set_4), 1)
>> - && (insns[4] = prev_real_insn (insns[5]))
>> && (insns[3] = prev_real_insn (insns[4]))
>> && (insns[2] = prev_real_insn (insns[3]))
>> && (insns[1] = prev_real_insn (insns[2]))
>> @@ -429,7 +432,7 @@ avr_is_casesi_sequence (basic_block bb, rtx_insn *insn, rtx_insn *insns[6])
>> {
>> fprintf (dump_file, ";; Sequence from casesi in "
>> "[bb %d]:\n\n", bb->index);
>> - for (int i = 0; i < 6; i++)
>> + for (int i = 0; i < 5; i++)
>> print_rtl_single (dump_file, insns[i]);
>> }
>> @@ -519,7 +522,7 @@ avr_casei_sequence_check_operands (rtx *xop)
>> }
>>
>> -/* INSNS[1..5] is a sequence as generated by casesi and INSNS[0] is an
>> +/* INSNS[1..4] is a sequence as generated by casesi and INSNS[0] is an
>> extension of an 8-bit or 16-bit integer to SImode. XOP contains the
>> operands of INSNS as extracted by insn_extract from pattern
>> casesi_<mode>_sequence:
>> @@ -541,7 +544,7 @@ avr_casei_sequence_check_operands (rtx *xop)
>> switch value instead of SImode. */
>> static void
>> -avr_optimize_casesi (rtx_insn *insns[6], rtx *xop)
>> +avr_optimize_casesi (rtx_insn *insns[5], rtx *xop)
>> {
>> // Original mode of the switch value; this is QImode or HImode.
>> machine_mode mode = GET_MODE (xop[10]);
>> @@ -597,16 +600,22 @@ avr_optimize_casesi (rtx_insn *insns[6], rtx *xop)
>> rtx reg = copy_to_mode_reg (mode, xop[10]);
>> rtx (*gen_add)(rtx,rtx,rtx) = QImode == mode ? gen_addqi3 :
>> gen_addhi3;
>> - rtx (*gen_cmp)(rtx,rtx) = QImode == mode ? gen_cmpqi3 : gen_cmphi3;
>> + //rtx (*gen_cmp)(rtx,rtx) = QImode == mode ? gen_cmpqi3 : gen_cmphi3;
>
> Null code.
>
>> + rtx (*gen_cbranch)(rtx,rtx,rtx,rtx)
>> + = QImode == mode ? gen_cbranchqi4 : gen_cbranchhi4;
>> emit_insn (gen_add (reg, reg, gen_int_mode (-low_idx, mode)));
>> - emit_insn (gen_cmp (reg, gen_int_mode (num_idx, mode)));
>> + rtx op0 = reg; rtx op1 = gen_int_mode (num_idx, mode);
>> + rtx labelref = copy_rtx (xop[4]);
>> + emit_jump_insn (gen_cbranch (gen_rtx_fmt_ee (GTU, VOIDmode, op0, op1),
>> + op0, op1,
>> + labelref));
>> seq1 = get_insns();
>> last1 = get_last_insn();
>> end_sequence();
>> - emit_insn_before (seq1, insns[1]);
>> + emit_insn_after (seq1, insns[2]);
>
> Would you explain this one?
>
>> // After the out-of-bounds test and corresponding branch, use a
>> // 16-bit index. If QImode is used, extend it to HImode first.
>> @@ -627,7 +636,7 @@ avr_optimize_casesi (rtx_insn *insns[6], rtx *xop)
>> last2 = get_last_insn();
>> end_sequence();
>> - emit_insn_after (seq2, insns[4]);
>> + emit_insn_after (seq2, insns[3]);
>> if (dump_file)
>> {
>> @@ -648,7 +657,7 @@ avr_optimize_casesi (rtx_insn *insns[6], rtx *xop)
>> }
>> fprintf (dump_file, ";; Deleting insns: %d, %d, %d.\n\n",
>> - INSN_UID (insns[1]), INSN_UID (insns[2]), INSN_UID (insns[4]));
>> + INSN_UID (insns[1]), INSN_UID (insns[2]), INSN_UID (insns[3]));
>> }
>> // Pseudodelete the SImode and subreg of SImode insns. We don't
>> care
>> @@ -657,7 +666,7 @@ avr_optimize_casesi (rtx_insn *insns[6], rtx *xop)
>> SET_INSN_DELETED (insns[1]);
>> SET_INSN_DELETED (insns[2]);
>> - SET_INSN_DELETED (insns[4]);
>> + SET_INSN_DELETED (insns[3]);
>> }
>>
>> @@ -668,7 +677,7 @@ avr_pass_casesi::avr_rest_of_handle_casesi (function *func)
>
> Did you check that this pass still works as intended, e.g. in the
> respective dumps (for the different PC sized and ISAs)? The point is
> that it will give up silently if somethong unexpected is seen.
>
>> FOR_EACH_BB_FN (bb, func)
>> {
>> - rtx_insn *insn, *insns[6];
>> + rtx_insn *insn, *insns[5];
>> FOR_BB_INSNS (bb, insn)
>> {
>> @@ -814,6 +823,8 @@ avr_init_expanders (void)
>> tmp_reg_rtx = all_regs_rtx[AVR_TMP_REGNO];
>> zero_reg_rtx = all_regs_rtx[AVR_ZERO_REGNO];
>> + cc_reg_rtx = gen_rtx_REG (CCmode, REG_CC);
>> +
>> lpm_addr_reg_rtx = gen_rtx_REG (HImode, REG_Z);
>> sreg_rtx = gen_rtx_MEM (QImode, GEN_INT (avr_addr.sreg));
>> @@ -2989,152 +3000,6 @@ avr_use_by_pieces_infrastructure_p (unsigned HOST_WIDE_INT size,
>> return size <= MOVE_MAX_PIECES;
>> }
>> -
>> -/* Worker function for `NOTICE_UPDATE_CC'. */
>> -/* Update the condition code in the INSN. */
>> -
>> -void
>> -avr_notice_update_cc (rtx body ATTRIBUTE_UNUSED, rtx_insn *insn)
>> -{
>> - rtx set;
>> - enum attr_cc cc = get_attr_cc (insn);
>> -
>> - switch (cc)
>> - {
>> - default:
>> - break;
>> -
>> - case CC_PLUS:
>> - case CC_LDI:
>> - {
>> - rtx *op = recog_data.operand;
>> - int len_dummy, icc;
>> -
>> - /* Extract insn's operands. */
>> - extract_constrain_insn_cached (insn);
>> -
>> - switch (cc)
>> - {
>> - default:
>> - gcc_unreachable();
>> -
>> - case CC_PLUS:
>> - avr_out_plus (insn, op, &len_dummy, &icc);
>> - cc = (enum attr_cc) icc;
>> - break;
>> -
>> - case CC_LDI:
>> -
>> - cc = (op[1] == CONST0_RTX (GET_MODE (op[0]))
>> - && reg_overlap_mentioned_p (op[0], zero_reg_rtx))
>> - /* Loading zero-reg with 0 uses CLR and thus clobbers cc0. */
>> - ? CC_CLOBBER
>> - /* Any other "r,rL" combination does not alter cc0. */
>> - : CC_NONE;
>> -
>> - break;
>> - } /* inner switch */
>> -
>> - break;
>> - }
>> - } /* outer swicth */
>> -
>> - switch (cc)
>> - {
>> - default:
>> - /* Special values like CC_OUT_PLUS from above have been
>> - mapped to "standard" CC_* values so we never come here. */
>> -
>> - gcc_unreachable();
>> - break;
>> -
>> - case CC_NONE:
>> - /* Insn does not affect CC at all, but it might set some registers
>> - that are stored in cc_status. If such a register is affected by
>> - the current insn, for example by means of a SET or a CLOBBER,
>> - then we must reset cc_status; cf. PR77326.
>> -
>> - Unfortunately, set_of cannot be used as reg_overlap_mentioned_p
>> - will abort on COMPARE (which might be found in cc_status.value1/2).
>> - Thus work out the registers set by the insn and regs mentioned
>> - in cc_status.value1/2. */
>> -
>> - if (cc_status.value1
>> - || cc_status.value2)
>> - {
>> - HARD_REG_SET regs_used;
>> - HARD_REG_SET regs_set;
>> - CLEAR_HARD_REG_SET (regs_used);
>> -
>> - if (cc_status.value1
>> - && !CONSTANT_P (cc_status.value1))
>> - {
>> - find_all_hard_regs (cc_status.value1, ®s_used);
>> - }
>> -
>> - if (cc_status.value2
>> - && !CONSTANT_P (cc_status.value2))
>> - {
>> - find_all_hard_regs (cc_status.value2, ®s_used);
>> - }
>> -
>> - find_all_hard_reg_sets (insn, ®s_set, false);
>> -
>> - if (hard_reg_set_intersect_p (regs_used, regs_set))
>> - {
>> - CC_STATUS_INIT;
>> - }
>> - }
>> -
>> - break; // CC_NONE
>> -
>> - case CC_SET_N:
>> - CC_STATUS_INIT;
>> - break;
>> -
>> - case CC_SET_ZN:
>> - set = single_set (insn);
>> - CC_STATUS_INIT;
>> - if (set)
>> - {
>> - cc_status.flags |= CC_NO_OVERFLOW;
>> - cc_status.value1 = SET_DEST (set);
>> - }
>> - break;
>> -
>> - case CC_SET_VZN:
>> - /* Insn like INC, DEC, NEG that set Z,N,V. We currently don't make use
>> - of this combination, cf. also PR61055. */
>> - CC_STATUS_INIT;
>> - break;
>> -
>> - case CC_SET_CZN:
>> - /* Insn sets the Z,N,C flags of CC to recog_operand[0].
>> - The V flag may or may not be known but that's ok because
>> - alter_cond will change tests to use EQ/NE. */
>> - set = single_set (insn);
>> - CC_STATUS_INIT;
>> - if (set)
>> - {
>> - cc_status.value1 = SET_DEST (set);
>> - cc_status.flags |= CC_OVERFLOW_UNUSABLE;
>> - }
>> - break;
>> -
>> - case CC_COMPARE:
>> - set = single_set (insn);
>> - CC_STATUS_INIT;
>> - if (set)
>> - cc_status.value1 = SET_SRC (set);
>> - break;
>> -
>> - case CC_CLOBBER:
>> - /* Insn doesn't leave CC in a usable state. */
>> - CC_STATUS_INIT;
>> - break;
>> - }
>> -}
>> -
>> /* Choose mode for jump insn:
>> 1 - relative jump in range -63 <= x <= 62 ;
>> 2 - relative jump in range -2046 <= x <= 2045 ;
>> @@ -5820,6 +5685,8 @@ compare_condition (rtx_insn *insn)
>> if (next && JUMP_P (next))
>> {
>> rtx pat = PATTERN (next);
>> + if (GET_CODE(pat) == PARALLEL)
>> + pat = XEXP (pat, 0);
>> rtx src = SET_SRC (pat);
>
> The element of a parallel is a rtvec, i.e code 'E', but you are
> accessing it like it was 'e'.
>
>> if (IF_THEN_ELSE == GET_CODE (src))
>> @@ -6157,12 +6024,13 @@ avr_out_tstsi (rtx_insn *insn, rtx *op, int *plen)
>> OPERANDS[3] is a QImode scratch register from LD regs if
>> available and SCRATCH, otherwise (no scratch available)
>> + NUMOPS is the number of operands
>> TEMPL is an assembler template that shifts by one position.
>> T_LEN is the length of this template. */
>> void
>> out_shift_with_cnt (const char *templ, rtx_insn *insn, rtx operands[],
>> - int *plen, int t_len)
>> + int numops, int *plen, int t_len)
>> {
>> bool second_label = true;
>> bool saved_in_tmp = false;
>> @@ -6180,6 +6048,7 @@ out_shift_with_cnt (const char *templ, rtx_insn *insn, rtx operands[],
>> if (CONST_INT_P (operands[2]))
>> {
>> bool scratch = (GET_CODE (PATTERN (insn)) == PARALLEL
>> + && numops == 4
>> && REG_P (operands[3]));
>> int count = INTVAL (operands[2]);
>> int max_len = 10; /* If larger than this, always use a loop. */
>> @@ -6275,7 +6144,7 @@ out_shift_with_cnt (const char *templ, rtx_insn *insn, rtx operands[],
>> /* 8bit shift left ((char)x << i) */
>> const char *
>> -ashlqi3_out (rtx_insn *insn, rtx operands[], int *len)
>> +ashlqi3_out (rtx_insn *insn, rtx operands[], int numops, int *len)
>> {
>> if (CONST_INT_P (operands[2]))
>> {
>> @@ -6364,7 +6233,7 @@ ashlqi3_out (rtx_insn *insn, rtx operands[], int *len)
>> fatal_insn ("internal compiler error. Incorrect shift:", insn);
>> out_shift_with_cnt ("lsl %0",
>> - insn, operands, len, 1);
>> + insn, operands, numops, len, 1);
>> return "";
>> }
>> @@ -6372,11 +6241,12 @@ ashlqi3_out (rtx_insn *insn, rtx
>> operands[], int *len)
>> /* 16bit shift left ((short)x << i) */
>> const char *
>> -ashlhi3_out (rtx_insn *insn, rtx operands[], int *len)
>> +ashlhi3_out (rtx_insn *insn, rtx operands[], int numops, int *len)
>> {
>> if (CONST_INT_P (operands[2]))
>> {
>> - int scratch = (GET_CODE (PATTERN (insn)) == PARALLEL);
>> + int scratch = (GET_CODE (PATTERN (insn)) == PARALLEL
>> + && numops == 4);
>
> I wonder it there is a better way than checking / passing the number
> of operands which is not very robust. Can't you just look a bit deeper
> into insn so everything is self-contained? E.g. length of the parallel
> and whether there's a clobber reg or clobber scratch at the expected
> position.
>
>> int ldi_ok = test_hard_reg_class (LD_REGS, operands[0]);
>> int k;
>> int *t = len;
>> @@ -6621,7 +6491,7 @@ ashlhi3_out (rtx_insn *insn, rtx operands[], int *len)
>> len = t;
>> }
>> out_shift_with_cnt ("lsl %A0" CR_TAB
>> - "rol %B0", insn, operands, len, 2);
>> + "rol %B0", insn, operands, numops, len, 2);
>> return "";
>> }
>> @@ -6629,7 +6499,7 @@ ashlhi3_out (rtx_insn *insn, rtx operands[],
>> int *len)
>> /* 24-bit shift left */
>> const char*
>> -avr_out_ashlpsi3 (rtx_insn *insn, rtx *op, int *plen)
>> +avr_out_ashlpsi3 (rtx_insn *insn, rtx *op, int numops, int *plen)
>> {
>> if (plen)
>> *plen = 0;
>> @@ -6684,7 +6554,7 @@ avr_out_ashlpsi3 (rtx_insn *insn, rtx *op, int *plen)
>> out_shift_with_cnt ("lsl %A0" CR_TAB
>> "rol %B0" CR_TAB
>> - "rol %C0", insn, op, plen, 3);
>> + "rol %C0", insn, op, numops, plen, 3);
>> return "";
>> }
>> @@ -6692,7 +6562,7 @@ avr_out_ashlpsi3 (rtx_insn *insn, rtx *op,
>> int *plen)
>> /* 32bit shift left ((long)x << i) */
>> const char *
>> -ashlsi3_out (rtx_insn *insn, rtx operands[], int *len)
>> +ashlsi3_out (rtx_insn *insn, rtx operands[], int numops, int *len)
>> {
>> if (CONST_INT_P (operands[2]))
>> {
>> @@ -6774,14 +6644,14 @@ ashlsi3_out (rtx_insn *insn, rtx operands[], int *len)
>> out_shift_with_cnt ("lsl %A0" CR_TAB
>> "rol %B0" CR_TAB
>> "rol %C0" CR_TAB
>> - "rol %D0", insn, operands, len, 4);
>> + "rol %D0", insn, operands, numops, len, 4);
>> return "";
>> }
>> /* 8bit arithmetic shift right ((signed char)x >> i) */
>> const char *
>> -ashrqi3_out (rtx_insn *insn, rtx operands[], int *len)
>> +ashrqi3_out (rtx_insn *insn, rtx operands[], int numops, int *len)
>> {
>> if (CONST_INT_P (operands[2]))
>> {
>> @@ -6845,7 +6715,7 @@ ashrqi3_out (rtx_insn *insn, rtx operands[], int *len)
>> fatal_insn ("internal compiler error. Incorrect shift:", insn);
>> out_shift_with_cnt ("asr %0",
>> - insn, operands, len, 1);
>> + insn, operands, numops, len, 1);
>> return "";
>> }
>> @@ -6853,11 +6723,12 @@ ashrqi3_out (rtx_insn *insn, rtx
>> operands[], int *len)
>> /* 16bit arithmetic shift right ((signed short)x >> i) */
>> const char *
>> -ashrhi3_out (rtx_insn *insn, rtx operands[], int *len)
>> +ashrhi3_out (rtx_insn *insn, rtx operands[], int numops, int *len)
>> {
>> if (CONST_INT_P (operands[2]))
>> {
>> - int scratch = (GET_CODE (PATTERN (insn)) == PARALLEL);
>> + int scratch = (GET_CODE (PATTERN (insn)) == PARALLEL
>> + && numops == 4);
>
> Same here. Prefer digging into insn.
>
>> int ldi_ok = test_hard_reg_class (LD_REGS, operands[0]);
>> int k;
>> int *t = len;
>> @@ -7008,7 +6879,7 @@ ashrhi3_out (rtx_insn *insn, rtx operands[], int *len)
>> len = t;
>> }
>> out_shift_with_cnt ("asr %B0" CR_TAB
>> - "ror %A0", insn, operands, len, 2);
>> + "ror %A0", insn, operands, numops, len, 2);
>> return "";
>> }
>> @@ -7016,7 +6887,7 @@ ashrhi3_out (rtx_insn *insn, rtx operands[],
>> int *len)
>> /* 24-bit arithmetic shift right */
>> const char*
>> -avr_out_ashrpsi3 (rtx_insn *insn, rtx *op, int *plen)
>> +avr_out_ashrpsi3 (rtx_insn *insn, rtx *op, int numops, int *plen)
>> {
>> int dest = REGNO (op[0]);
>> int src = REGNO (op[1]);
>> @@ -7067,7 +6938,7 @@ avr_out_ashrpsi3 (rtx_insn *insn, rtx *op, int *plen)
>> out_shift_with_cnt ("asr %C0" CR_TAB
>> "ror %B0" CR_TAB
>> - "ror %A0", insn, op, plen, 3);
>> + "ror %A0", insn, op, numops, plen, 3);
>> return "";
>> }
>> @@ -7075,7 +6946,7 @@ avr_out_ashrpsi3 (rtx_insn *insn, rtx *op,
>> int *plen)
>> /* 32-bit arithmetic shift right ((signed long)x >> i) */
>> const char *
>> -ashrsi3_out (rtx_insn *insn, rtx operands[], int *len)
>> +ashrsi3_out (rtx_insn *insn, rtx operands[], int numops, int *len)
>> {
>> if (CONST_INT_P (operands[2]))
>> {
>> @@ -7165,14 +7036,14 @@ ashrsi3_out (rtx_insn *insn, rtx operands[], int *len)
>> out_shift_with_cnt ("asr %D0" CR_TAB
>> "ror %C0" CR_TAB
>> "ror %B0" CR_TAB
>> - "ror %A0", insn, operands, len, 4);
>> + "ror %A0", insn, operands, numops, len, 4);
>> return "";
>> }
>> /* 8-bit logic shift right ((unsigned char)x >> i) */
>> const char *
>> -lshrqi3_out (rtx_insn *insn, rtx operands[], int *len)
>> +lshrqi3_out (rtx_insn *insn, rtx operands[], int numops, int *len)
>> {
>> if (CONST_INT_P (operands[2]))
>> {
>> @@ -7260,18 +7131,19 @@ lshrqi3_out (rtx_insn *insn, rtx operands[], int *len)
>> fatal_insn ("internal compiler error. Incorrect shift:", insn);
>> out_shift_with_cnt ("lsr %0",
>> - insn, operands, len, 1);
>> + insn, operands, numops, len, 1);
>> return "";
>> }
>> /* 16-bit logic shift right ((unsigned short)x >> i) */
>> const char *
>> -lshrhi3_out (rtx_insn *insn, rtx operands[], int *len)
>> +lshrhi3_out (rtx_insn *insn, rtx operands[], int numops, int *len)
>> {
>> if (CONST_INT_P (operands[2]))
>> {
>> - int scratch = (GET_CODE (PATTERN (insn)) == PARALLEL);
>> + int scratch = (GET_CODE (PATTERN (insn)) == PARALLEL
>> + && numops == 4);
>
> Same.
>
>> int ldi_ok = test_hard_reg_class (LD_REGS, operands[0]);
>> int k;
>> int *t = len;
>> @@ -7516,7 +7388,7 @@ lshrhi3_out (rtx_insn *insn, rtx operands[], int *len)
>> len = t;
>> }
>> out_shift_with_cnt ("lsr %B0" CR_TAB
>> - "ror %A0", insn, operands, len, 2);
>> + "ror %A0", insn, operands, numops, len, 2);
>> return "";
>> }
>> @@ -7524,7 +7396,7 @@ lshrhi3_out (rtx_insn *insn, rtx operands[],
>> int *len)
>> /* 24-bit logic shift right */
>> const char*
>> -avr_out_lshrpsi3 (rtx_insn *insn, rtx *op, int *plen)
>> +avr_out_lshrpsi3 (rtx_insn *insn, rtx *op, int numops, int *plen)
>> {
>> int dest = REGNO (op[0]);
>> int src = REGNO (op[1]);
>> @@ -7570,7 +7442,7 @@ avr_out_lshrpsi3 (rtx_insn *insn, rtx *op, int *plen)
>> out_shift_with_cnt ("lsr %C0" CR_TAB
>> "ror %B0" CR_TAB
>> - "ror %A0", insn, op, plen, 3);
>> + "ror %A0", insn, op, numops, plen, 3);
>> return "";
>> }
>> @@ -7578,7 +7450,7 @@ avr_out_lshrpsi3 (rtx_insn *insn, rtx *op,
>> int *plen)
>> /* 32-bit logic shift right ((unsigned int)x >> i) */
>> const char *
>> -lshrsi3_out (rtx_insn *insn, rtx operands[], int *len)
>> +lshrsi3_out (rtx_insn *insn, rtx operands[], int numops, int *len)
>> {
>> if (CONST_INT_P (operands[2]))
>> {
>> @@ -7660,7 +7532,7 @@ lshrsi3_out (rtx_insn *insn, rtx operands[], int *len)
>> out_shift_with_cnt ("lsr %D0" CR_TAB
>> "ror %C0" CR_TAB
>> "ror %B0" CR_TAB
>> - "ror %A0", insn, operands, len, 4);
>> + "ror %A0", insn, operands, numops, len, 4);
>> return "";
>> }
>> @@ -9346,6 +9218,7 @@ int
>> avr_adjust_insn_length (rtx_insn *insn, int len)
>> {
>> rtx *op = recog_data.operand;
>> + int numops = recog_data.n_operands;
>
> Should no more be needed if we look properly at the insn.
> In particular, no changes to avr-protos.h and involved functions
> are needed then.
>
>> enum attr_adjust_len adjust_len;
>> /* As we pretend jump tables in .text, fix branch offsets
>> crossing jump
>> @@ -9411,21 +9284,21 @@ avr_adjust_insn_length (rtx_insn *insn, int len)
>> case ADJUST_LEN_COMPARE: avr_out_compare (insn, op, &len); break;
>> case ADJUST_LEN_COMPARE64: avr_out_compare64 (insn, op, &len); break;
>> - case ADJUST_LEN_LSHRQI: lshrqi3_out (insn, op, &len); break;
>> - case ADJUST_LEN_LSHRHI: lshrhi3_out (insn, op, &len); break;
>> - case ADJUST_LEN_LSHRSI: lshrsi3_out (insn, op, &len); break;
>> + case ADJUST_LEN_LSHRQI: lshrqi3_out (insn, op, numops, &len); break;
>> + case ADJUST_LEN_LSHRHI: lshrhi3_out (insn, op, numops, &len); break;
>> + case ADJUST_LEN_LSHRSI: lshrsi3_out (insn, op, numops, &len); break;
>> - case ADJUST_LEN_ASHRQI: ashrqi3_out (insn, op, &len); break;
>> - case ADJUST_LEN_ASHRHI: ashrhi3_out (insn, op, &len); break;
>> - case ADJUST_LEN_ASHRSI: ashrsi3_out (insn, op, &len); break;
>> + case ADJUST_LEN_ASHRQI: ashrqi3_out (insn, op, numops, &len); break;
>> + case ADJUST_LEN_ASHRHI: ashrhi3_out (insn, op, numops, &len); break;
>> + case ADJUST_LEN_ASHRSI: ashrsi3_out (insn, op, numops, &len); break;
>> - case ADJUST_LEN_ASHLQI: ashlqi3_out (insn, op, &len); break;
>> - case ADJUST_LEN_ASHLHI: ashlhi3_out (insn, op, &len); break;
>> - case ADJUST_LEN_ASHLSI: ashlsi3_out (insn, op, &len); break;
>> + case ADJUST_LEN_ASHLQI: ashlqi3_out (insn, op, numops, &len); break;
>> + case ADJUST_LEN_ASHLHI: ashlhi3_out (insn, op, numops, &len); break;
>> + case ADJUST_LEN_ASHLSI: ashlsi3_out (insn, op, numops, &len); break;
>> - case ADJUST_LEN_ASHLPSI: avr_out_ashlpsi3 (insn, op, &len);
>> break;
>> - case ADJUST_LEN_ASHRPSI: avr_out_ashrpsi3 (insn, op, &len); break;
>> - case ADJUST_LEN_LSHRPSI: avr_out_lshrpsi3 (insn, op, &len); break;
>> + case ADJUST_LEN_ASHLPSI: avr_out_ashlpsi3 (insn, op, numops, &len); break;
>> + case ADJUST_LEN_ASHRPSI: avr_out_ashrpsi3 (insn, op, numops, &len); break;
>> + case ADJUST_LEN_LSHRPSI: avr_out_lshrpsi3 (insn, op, numops, &len); break;
>> case ADJUST_LEN_CALL: len = AVR_HAVE_JMP_CALL ? 2 : 1; break;
>> @@ -9619,6 +9492,18 @@ avr_assemble_integer (rtx x, unsigned int
>> size, int aligned_p)
>> return default_assemble_integer (x, size, aligned_p);
>> }
>> +/* Implement TARGET_CLASS_MAX_NREGS. Reasons described in comments
>> for
>> + avr_hard_regno_nregs. */
>> +
>> +static unsigned char
>> +avr_class_max_nregs (reg_class_t rclass, machine_mode mode)
>> +{
>> + if (rclass == CC_REG && mode == CCmode)
>> + return 1;
>> +
>> + return CEIL (GET_MODE_SIZE (mode), UNITS_PER_WORD);
>> +}
>> +
>> /* Implement `TARGET_CLASS_LIKELY_SPILLED_P'. */
>> /* Return value is nonzero if pseudos that have been
>> @@ -11719,7 +11604,7 @@ avr_compare_pattern (rtx_insn *insn)
>> if (pattern
>> && NONJUMP_INSN_P (insn)
>> - && SET_DEST (pattern) == cc0_rtx
>> + && SET_DEST (pattern) == cc_reg_rtx
>> && GET_CODE (SET_SRC (pattern)) == COMPARE)
>> {
>> machine_mode mode0 = GET_MODE (XEXP (SET_SRC (pattern), 0));
>> @@ -11822,8 +11707,8 @@ avr_reorg_remove_redundant_compare (rtx_insn *insn1)
>
> Does this still work? PR49903 has some sample code. This routine will
> silently give up if it sees something unexpected.
>
> IIRC this runs after the first post-reload split, so everything
> looks different now. And at least the comments need adjustment, they
> are still talking about cc0.
>
>> || LABEL_REF != GET_CODE (XEXP (ifelse1, 1))
>> || LABEL_REF != GET_CODE (XEXP (ifelse2, 1))
>> || !COMPARISON_P (XEXP (ifelse2, 0))
>> - || cc0_rtx != XEXP (XEXP (ifelse1, 0), 0)
>> - || cc0_rtx != XEXP (XEXP (ifelse2, 0), 0)
>> + || cc_reg_rtx != XEXP (XEXP (ifelse1, 0), 0)
>> + || cc_reg_rtx != XEXP (XEXP (ifelse2, 0), 0)
>> || const0_rtx != XEXP (XEXP (ifelse1, 0), 1)
>> || const0_rtx != XEXP (XEXP (ifelse2, 0), 1))
>> {
>> @@ -11893,7 +11778,7 @@ avr_reorg_remove_redundant_compare (rtx_insn *insn1)
>> JUMP_LABEL (jump) = JUMP_LABEL (branch1);
>> target = XEXP (XEXP (ifelse2, 1), 0);
>> - cond = gen_rtx_fmt_ee (code, VOIDmode, cc0_rtx, const0_rtx);
>> + cond = gen_rtx_fmt_ee (code, VOIDmode, cc_reg_rtx, const0_rtx);
>> jump = emit_jump_insn_after (gen_branch_unspec (target, cond), insn2);
>> JUMP_LABEL (jump) = JUMP_LABEL (branch2);
>> @@ -12119,6 +12004,22 @@ jump_over_one_insn_p (rtx_insn *insn, rtx dest)
>> && avr_2word_insn_p (next_active_insn (insn))));
>> }
>> +/* Implement TARGET_HARD_REGNO_NREGS. CCmode is four units for
>> historical
>> + reasons. If this hook is not defined, TARGET_HARD_REGNO_NREGS
>> + reports that CCmode requires four registers.
>> + Define this hook to allow CCmode to fit in a single REG_CC. For
>> + other modes and regs, return the number of words in mode (i.e whatever
>> + the default implementation of the hook returned). */
>> +
>> +static unsigned int
>> +avr_hard_regno_nregs (unsigned int regno, machine_mode mode)
>> +{
>> + if (regno == REG_CC && mode == CCmode)
>> + return 1;
>> +
>> + return CEIL (GET_MODE_SIZE (mode), UNITS_PER_WORD);
>> +}
>> +
>> /* Implement TARGET_HARD_REGNO_MODE_OK. On the enhanced core,
>> anything
>> larger than 1 byte must start in even numbered register for "movw" to
>> @@ -14669,6 +14570,9 @@ avr_float_lib_compare_returns_bool (machine_mode mode, enum rtx_code)
>> #undef TARGET_CONDITIONAL_REGISTER_USAGE
>> #define TARGET_CONDITIONAL_REGISTER_USAGE avr_conditional_register_usage
>> +#undef TARGET_HARD_REGNO_NREGS
>> +#define TARGET_HARD_REGNO_NREGS avr_hard_regno_nregs
>> +
>> #undef TARGET_HARD_REGNO_MODE_OK
>> #define TARGET_HARD_REGNO_MODE_OK avr_hard_regno_mode_ok
>> #undef TARGET_HARD_REGNO_SCRATCH_OK
>> @@ -14694,6 +14598,9 @@ avr_float_lib_compare_returns_bool (machine_mode mode, enum rtx_code)
>> #undef TARGET_CLASS_LIKELY_SPILLED_P
>> #define TARGET_CLASS_LIKELY_SPILLED_P avr_class_likely_spilled_p
>> +#undef TARGET_CLASS_MAX_NREGS
>> +#define TARGET_CLASS_MAX_NREGS avr_class_max_nregs
>> +
>> #undef TARGET_OPTION_OVERRIDE
>> #define TARGET_OPTION_OVERRIDE avr_option_override
>> diff --git a/gcc/config/avr/avr.h b/gcc/config/avr/avr.h
>> index c723b8aaeeb..c62144f1233 100644
>> --- a/gcc/config/avr/avr.h
>> +++ b/gcc/config/avr/avr.h
>> @@ -155,7 +155,7 @@ FIXME: DRIVER_SELF_SPECS has changed.
>> #define WCHAR_TYPE_SIZE 16
>> -#define FIRST_PSEUDO_REGISTER 36
>> +#define FIRST_PSEUDO_REGISTER 37
>> #define GENERAL_REGNO_P(N) IN_RANGE (N, 2, 31)
>> #define GENERAL_REG_P(X) (REG_P (X) && GENERAL_REGNO_P (REGNO (X)))
>> @@ -178,7 +178,8 @@ FIXME: DRIVER_SELF_SPECS has changed.
>> 0,0,/* r28 r29 */\
>> 0,0,/* r30 r31 */\
>> 1,1,/* STACK */\
>> - 1,1 /* arg pointer */ }
>> + 1,1, /* arg pointer */ \
>> + 1 /* CC */ }
>> #define CALL_USED_REGISTERS { \
>> 1,1,/* r0 r1 */ \
>> @@ -198,7 +199,8 @@ FIXME: DRIVER_SELF_SPECS has changed.
>> 0,0,/* r28 r29 */ \
>> 1,1,/* r30 r31 */ \
>> 1,1,/* STACK */ \
>> - 1,1 /* arg pointer */ }
>> + 1,1, /* arg pointer */ \
>> + 1 /* CC */ }
>> #define REG_ALLOC_ORDER { \
>> 24,25, \
>> @@ -210,7 +212,7 @@ FIXME: DRIVER_SELF_SPECS has changed.
>> 28,29, \
>> 17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2, \
>> 0,1, \
>> - 32,33,34,35 \
>> + 32,33,34,35,36 \
>> }
>> #define ADJUST_REG_ALLOC_ORDER avr_adjust_reg_alloc_order()
>> @@ -230,6 +232,7 @@ enum reg_class {
>> LD_REGS, /* r16 - r31 */
>> NO_LD_REGS, /* r0 - r15 */
>> GENERAL_REGS, /* r0 - r31 */
>> + CC_REG, /* CC */
>> ALL_REGS, LIM_REG_CLASSES
>> };
>> @@ -250,6 +253,7 @@ enum reg_class {
>> "LD_REGS", /* r16 - r31 */ \
>> "NO_LD_REGS", /* r0 - r15 */ \
>> "GENERAL_REGS", /* r0 - r31 */ \
>> + "CC_REG", /* CC */ \
>> "ALL_REGS" }
>> #define REG_CLASS_CONTENTS { \
>> @@ -270,7 +274,8 @@ enum reg_class {
>> 0x00000000}, /* LD_REGS, r16 - r31 */ \
>> {0x0000ffff,0x00000000}, /* NO_LD_REGS r0 - r15 */ \
>> {0xffffffff,0x00000000}, /* GENERAL_REGS, r0 - r31 */ \
>> - {0xffffffff,0x00000003} /* ALL_REGS */ \
>> + {0x00000000,0x00000010}, /* CC */ \
>> + {0xffffffff,0x00000013} /* ALL_REGS */ \
>> }
>> #define REGNO_REG_CLASS(R) avr_regno_reg_class(R)
>> @@ -429,7 +434,7 @@ typedef struct avr_args
>> "r8","r9","r10","r11","r12","r13","r14","r15", \
>> "r16","r17","r18","r19","r20","r21","r22","r23", \
>> "r24","r25","r26","r27","r28","r29","r30","r31", \
>> - "__SP_L__","__SP_H__","argL","argH"}
>> + "__SP_L__","__SP_H__","argL","argH", "CC"}
>
> I am fine with "CC", but "cc" in asm clobber must also work
> because there's already code out there.
>
>> #define FINAL_PRESCAN_INSN(insn, operand, nop) \
>> avr_final_prescan_insn (insn, operand,nop)
>> @@ -484,13 +489,6 @@ typedef struct avr_args
>> #define TRAMPOLINE_SIZE 4
>> -/* Store in cc_status the expressions
>> - that the condition codes will describe
>> - after execution of an instruction whose pattern is EXP.
>> - Do not alter them if the instruction would not alter the cc's. */
>> -
>> -#define NOTICE_UPDATE_CC(EXP, INSN) avr_notice_update_cc (EXP, INSN)
>> -
>
> The respective prototype can be removed from avr-protos.h
>
>> /* The add insns don't set overflow in a usable way. */
>> #define CC_OVERFLOW_UNUSABLE 01000
>> /* The mov,and,or,xor insns don't set carry. That's ok though as the
>> @@ -500,7 +498,6 @@ typedef struct avr_args
>> understandable. */
>> #define CC_NO_CARRY CC_NO_OVERFLOW
>
> These 2 defines are no more needed, it's cc0 land.
>
>> -
>> /* Output assembler code to FILE to increment profiler label # LABELNO
>> for profiling a function entry. */
>> diff --git a/gcc/config/avr/avr.md b/gcc/config/avr/avr.md
>> index 41eb78c9855..1a79759958f 100644
>> --- a/gcc/config/avr/avr.md
>> +++ b/gcc/config/avr/avr.md
>> @@ -58,6 +58,7 @@
>> (REG_Z 30)
>> (REG_W 24)
>> (REG_SP 32)
>> + (REG_CC 36)
>> (LPM_REGNO 0) ; implicit target register of LPM
>> (TMP_REGNO 0) ; temporary register r0
>> (ZERO_REGNO 1) ; zero register r1
>> @@ -459,7 +460,8 @@
>> "reload_completed
>> && frame_pointer_needed
>> && !cfun->calls_alloca
>> - && find_reg_note (insn, REG_ARGS_SIZE, const0_rtx)"
>> + && find_reg_note (insn, REG_ARGS_SIZE, const0_rtx)
>> + && REGNO (operands[0]) != REG_Y"
>> [(set (reg:HI REG_SP)
>> (reg:HI REG_Y))])
>
> What's the additional condition about? Why we need it?
> What's op0 supposed to be?
>
>> @@ -491,19 +493,32 @@
>> ;; "load_psi_libgcc"
>> ;; "load_si_libgcc"
>> ;; "load_sf_libgcc"
>> -(define_insn "load_<mode>_libgcc"
>> +(define_insn_and_split "load_<mode>_libgcc"
>> [(set (reg:MOVMODE 22)
>> (match_operand:MOVMODE 0 "memory_operand" "m,m"))]
>> "avr_load_libgcc_p (operands[0])
>> && REG_P (XEXP (operands[0], 0))
>> && REG_Z == REGNO (XEXP (operands[0], 0))"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:MOVMODE 22)
>> + (match_dup 0))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*load_<mode>_libgcc"
>> + [(set (reg:MOVMODE 22)
>> + (match_operand:MOVMODE 0 "memory_operand" "m,m"))
>> + (clobber (reg:CC REG_CC))]
>> + "avr_load_libgcc_p (operands[0])
>> + && REG_P (XEXP (operands[0], 0))
>> + && REG_Z == REGNO (XEXP (operands[0], 0))
>> + && reload_completed"
>> {
>> operands[0] = GEN_INT (GET_MODE_SIZE (<MODE>mode));
>> return "%~call __load_%0";
>> }
>> [(set_attr "length" "1,2")
>> - (set_attr "isa" "rjmp,jmp")
>> - (set_attr "cc" "clobber")])
>> + (set_attr "isa" "rjmp,jmp")])
>
> Same (no reloads).
>
>>
>> ;; "xload8qi_A"
>> @@ -591,8 +606,7 @@
>> }
>> [(set_attr "length" "4,4")
>> (set_attr "adjust_len" "*,xload")
>> - (set_attr "isa" "lpmx,lpm")
>> - (set_attr "cc" "none")])
>> + (set_attr "isa" "lpmx,lpm")])
>> ;; R21:Z : 24-bit source address
>> ;; R22 : 1-4 byte output
>> @@ -602,21 +616,35 @@
>> ;; "xload_si_libgcc" "xload_sq_libgcc" "xload_usq_libgcc" "xload_sa_libgcc" "xload_usa_libgcc"
>> ;; "xload_sf_libgcc"
>> ;; "xload_psi_libgcc"
>> -(define_insn "xload_<mode>_libgcc"
>> +
>> +(define_insn_and_split "xload_<mode>_libgcc"
>> [(set (reg:MOVMODE 22)
>> (mem:MOVMODE (lo_sum:PSI (reg:QI 21)
>> (reg:HI REG_Z))))
>> (clobber (reg:QI 21))
>> (clobber (reg:HI REG_Z))]
>> "avr_xload_libgcc_p (<MODE>mode)"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:MOVMODE 22)
>> + (mem:MOVMODE (lo_sum:PSI (reg:QI 21)
>> + (reg:HI REG_Z))))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*xload_<mode>_libgcc"
>> + [(set (reg:MOVMODE 22)
>> + (mem:MOVMODE (lo_sum:PSI (reg:QI 21)
>> + (reg:HI REG_Z))))
>> + (clobber (reg:CC REG_CC))]
>> + "avr_xload_libgcc_p (<MODE>mode)
>> + && reload_completed"
>> {
>> rtx x_bytes = GEN_INT (GET_MODE_SIZE (<MODE>mode));
>> output_asm_insn ("%~call __xload_%0", &x_bytes);
>> return "";
>> }
>> - [(set_attr "type" "xcall")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "xcall")])
>
> Same (no reloads).
>
>>
>> ;; General move expanders
>> @@ -696,17 +724,29 @@
>> ;; "movqi_insn"
>> ;; "movqq_insn" "movuqq_insn"
>> -(define_insn "mov<mode>_insn"
>> +(define_insn_and_split "mov<mode>_insn"
>> [(set (match_operand:ALL1 0 "nonimmediate_operand" "=r ,d ,Qm ,r ,q,r,*r")
>> (match_operand:ALL1 1 "nox_general_operand" "r Y00,n Ynn,r Y00,Qm,r,q,i"))]
>> "register_operand (operands[0], <MODE>mode)
>> || reg_or_0_operand (operands[1], <MODE>mode)"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (match_dup 1))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*mov<mode>_insn"
>> + [(set (match_operand:ALL1 0 "nonimmediate_operand" "=r ,d ,Qm ,r ,q,r,*r")
>> + (match_operand:ALL1 1 "nox_general_operand" "r Y00,n Ynn,r Y00,Qm,r,q,i"))
>> + (clobber (reg:CC REG_CC))]
>> + "(register_operand (operands[0], <MODE>mode)
>> + || reg_or_0_operand (operands[1], <MODE>mode))
>> + && reload_completed"
>> {
>> return output_movqi (insn, operands, NULL);
>> }
>> [(set_attr "length" "1,1,5,5,1,1,4")
>> - (set_attr "adjust_len" "mov8")
>> - (set_attr "cc" "ldi,none,clobber,clobber,none,none,clobber")])
>> + (set_attr "adjust_len" "mov8")])
>> ;; This is used in peephole2 to optimize loading immediate
>> constants
>> ;; if a scratch register from LD_REGS happens to be available.
>> @@ -720,8 +760,7 @@
>> "reload_completed"
>> "ldi %2,lo8(%1)
>> mov %0,%2"
>> - [(set_attr "length" "2")
>> - (set_attr "cc" "none")])
>> + [(set_attr "length" "2")])
>> (define_peephole2
>> [(match_scratch:QI 2 "d")
>> @@ -759,8 +798,7 @@
>> out %A0,%A1
>> out %A0,%A1\;out %B0,%B1"
>> [(set_attr "length" "2,4,5,1,2")
>> - (set_attr "isa" "no_xmega,no_xmega,no_xmega,*,xmega")
>> - (set_attr "cc" "none")])
>> + (set_attr "isa" "no_xmega,no_xmega,no_xmega,*,xmega")])
>> (define_peephole2
>> [(match_scratch:QI 2 "d")
>> @@ -769,7 +807,8 @@
>> "operands[1] != CONST0_RTX (<MODE>mode)"
>> [(parallel [(set (match_dup 0)
>> (match_dup 1))
>> - (clobber (match_dup 2))])])
>> + (clobber (match_dup 2))
>> + (clobber (reg:CC REG_CC))])])
>
> Don't we need clobber reg_cc in the input pattern(s) already?
> peep2 won't add new clobbers, thus this change renders the peep2 void.
>
>> ;; '*' because it is not used in rtl generation, only in above
>> peephole
>> ;; "*reload_inhi"
>> @@ -778,29 +817,41 @@
>> (define_insn "*reload_in<mode>"
>> [(set (match_operand:ALL2 0 "l_register_operand" "=l")
>> (match_operand:ALL2 1 "immediate_operand" "i"))
>> - (clobber (match_operand:QI 2 "register_operand" "=&d"))]
>> + (clobber (match_operand:QI 2 "register_operand" "=&d"))
>> + (clobber (reg:CC REG_CC))]
>> "reload_completed"
>> {
>> return output_reload_inhi (operands, operands[2], NULL);
>> }
>> [(set_attr "length" "4")
>> - (set_attr "adjust_len" "reload_in16")
>> - (set_attr "cc" "clobber")])
>> + (set_attr "adjust_len" "reload_in16")])
>> ;; "*movhi"
>> ;; "*movhq" "*movuhq"
>> ;; "*movha" "*movuha"
>> -(define_insn "*mov<mode>"
>> +(define_insn_and_split "*mov<mode>_split"
>> [(set (match_operand:ALL2 0 "nonimmediate_operand" "=r,r ,r,m ,d,*r,q,r")
>> (match_operand:ALL2 1 "nox_general_operand" "r,Y00,m,r Y00,i,i ,r,q"))]
>> "register_operand (operands[0], <MODE>mode)
>> || reg_or_0_operand (operands[1], <MODE>mode)"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (match_dup 1))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*mov<mode>"
>> + [(set (match_operand:ALL2 0 "nonimmediate_operand" "=r,r ,r,m ,d,*r,q,r")
>> + (match_operand:ALL2 1 "nox_general_operand" "r,Y00,m,r Y00,i,i ,r,q"))
>> + (clobber (reg:CC REG_CC))]
>> + "(register_operand (operands[0], <MODE>mode)
>> + || reg_or_0_operand (operands[1], <MODE>mode))
>> + && reload_completed"
>> {
>> return output_movhi (insn, operands, NULL);
>> }
>> [(set_attr "length" "2,2,6,7,2,6,5,2")
>> - (set_attr "adjust_len" "mov16")
>> - (set_attr "cc" "none,none,clobber,clobber,none,clobber,none,none")])
>> + (set_attr "adjust_len" "mov16")])
>> (define_peephole2 ; movw
>> [(set (match_operand:ALL1 0 "even_register_operand" "")
>> @@ -844,7 +895,10 @@
>> [(set (match_operand:HISI 0 "register_operand" "")
>> (match_operand:HISI 1 "memory_operand" ""))]
>> "reload_completed
>> - && AVR_HAVE_LPMX"
>> + && AVR_HAVE_LPMX
>> + && avr_mem_flash_p (operands[1])
>> + && REG_P (XEXP (operands[1], 0))
>> + && !reg_overlap_mentioned_p (XEXP (operands[1], 0), operands[0])"
>> [(set (match_dup 0)
>> (match_dup 2))
>> (set (match_dup 3)
>> @@ -853,13 +907,6 @@
>> {
>> rtx addr = XEXP (operands[1], 0);
>> - if (!avr_mem_flash_p (operands[1])
>> - || !REG_P (addr)
>> - || reg_overlap_mentioned_p (addr, operands[0]))
>> - {
>> - FAIL;
>> - }
>> -
>> operands[2] = replace_equiv_address (operands[1],
>> gen_rtx_POST_INC (Pmode, addr));
>> operands[3] = addr;
>> @@ -878,33 +925,47 @@
>> && operands[1] != constm1_rtx"
>> [(parallel [(set (match_dup 0)
>> (match_dup 1))
>> - (clobber (match_dup 2))])])
>> + (clobber (match_dup 2))
>> + (clobber (reg:CC REG_CC))])])
>> ;; '*' because it is not used in rtl generation.
>> (define_insn "*reload_inpsi"
>> [(set (match_operand:PSI 0 "register_operand" "=r")
>> (match_operand:PSI 1 "immediate_operand" "i"))
>> - (clobber (match_operand:QI 2 "register_operand" "=&d"))]
>> + (clobber (match_operand:QI 2 "register_operand" "=&d"))
>> + (clobber (reg:CC REG_CC))]
>> "reload_completed"
>> {
>> return avr_out_reload_inpsi (operands, operands[2], NULL);
>> }
>> [(set_attr "length" "6")
>> - (set_attr "adjust_len" "reload_in24")
>> - (set_attr "cc" "clobber")])
>> + (set_attr "adjust_len" "reload_in24")])
>> -(define_insn "*movpsi"
>> +(define_insn_and_split "*movpsi_split"
>> [(set (match_operand:PSI 0 "nonimmediate_operand" "=r,r,r ,Qm,!d,r")
>> (match_operand:PSI 1 "nox_general_operand" "r,L,Qm,rL,i ,i"))]
>> "register_operand (operands[0], PSImode)
>> || register_operand (operands[1], PSImode)
>> || const0_rtx == operands[1]"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (match_dup 1))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*movpsi"
>> + [(set (match_operand:PSI 0 "nonimmediate_operand" "=r,r,r ,Qm,!d,r")
>> + (match_operand:PSI 1 "nox_general_operand" "r,L,Qm,rL,i ,i"))
>> + (clobber (reg:CC REG_CC))]
>> + "(register_operand (operands[0], PSImode)
>> + || register_operand (operands[1], PSImode)
>> + || const0_rtx == operands[1])
>> + && reload_completed"
>> {
>> return avr_out_movpsi (insn, operands, NULL);
>> }
>> [(set_attr "length" "3,3,8,9,4,10")
>> - (set_attr "adjust_len" "mov24")
>> - (set_attr "cc" "none,none,clobber,clobber,none,clobber")])
>> + (set_attr "adjust_len" "mov24")])
>> ;;==========================================================================
>> ;; move double word (32 bit)
>> @@ -917,7 +978,8 @@
>> "operands[1] != CONST0_RTX (<MODE>mode)"
>> [(parallel [(set (match_dup 0)
>> (match_dup 1))
>> - (clobber (match_dup 2))])])
>> + (clobber (match_dup 2))
>> + (clobber (reg:CC REG_CC))])])
>> ;; '*' because it is not used in rtl generation.
>> ;; "*reload_insi"
>> @@ -926,45 +988,69 @@
>> (define_insn "*reload_insi"
>> [(set (match_operand:ALL4 0 "register_operand" "=r")
>> (match_operand:ALL4 1 "immediate_operand" "n Ynn"))
>> - (clobber (match_operand:QI 2 "register_operand" "=&d"))]
>> + (clobber (match_operand:QI 2 "register_operand" "=&d"))
>> + (clobber (reg:CC REG_CC))]
>> "reload_completed"
>> {
>> return output_reload_insisf (operands, operands[2], NULL);
>> }
>> [(set_attr "length" "8")
>> - (set_attr "adjust_len" "reload_in32")
>> - (set_attr "cc" "clobber")])
>> + (set_attr "adjust_len" "reload_in32")])
>>
>> ;; "*movsi"
>> ;; "*movsq" "*movusq"
>> ;; "*movsa" "*movusa"
>> -(define_insn "*mov<mode>"
>> +(define_insn_and_split "*mov<mode>_split"
>> [(set (match_operand:ALL4 0 "nonimmediate_operand" "=r,r ,r ,Qm ,!d,r")
>> (match_operand:ALL4 1 "nox_general_operand" "r,Y00,Qm,r Y00,i ,i"))]
>> "register_operand (operands[0], <MODE>mode)
>> || reg_or_0_operand (operands[1], <MODE>mode)"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (match_dup 1))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*mov<mode>"
>> + [(set (match_operand:ALL4 0 "nonimmediate_operand" "=r,r ,r ,Qm ,!d,r")
>> + (match_operand:ALL4 1 "nox_general_operand" "r,Y00,Qm,r Y00,i ,i"))
>> + (clobber (reg:CC REG_CC))]
>> + "(register_operand (operands[0], <MODE>mode)
>> + || reg_or_0_operand (operands[1], <MODE>mode))
>> + && reload_completed"
>> {
>> return output_movsisf (insn, operands, NULL);
>> }
>> [(set_attr "length" "4,4,8,9,4,10")
>> - (set_attr "adjust_len" "mov32")
>> - (set_attr "cc" "none,none,clobber,clobber,none,clobber")])
>> + (set_attr "adjust_len" "mov32")])
>> ;;
>> fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
>> ;; move floating point numbers (32 bit)
>> -(define_insn "*movsf"
>> +(define_insn_and_split "*movsf_split"
>> [(set (match_operand:SF 0 "nonimmediate_operand" "=r,r,r ,Qm,!d,r")
>> (match_operand:SF 1 "nox_general_operand" "r,G,Qm,rG,F ,F"))]
>> "register_operand (operands[0], SFmode)
>> || reg_or_0_operand (operands[1], SFmode)"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (match_dup 1))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*movsf"
>> + [(set (match_operand:SF 0 "nonimmediate_operand" "=r,r,r ,Qm,!d,r")
>> + (match_operand:SF 1 "nox_general_operand" "r,G,Qm,rG,F ,F"))
>> + (clobber (reg:CC REG_CC))]
>> + "(register_operand (operands[0], SFmode)
>> + || reg_or_0_operand (operands[1], SFmode))
>> + && reload_completed"
>> {
>> return output_movsisf (insn, operands, NULL);
>> }
>> [(set_attr "length" "4,4,8,9,4,10")
>> - (set_attr "adjust_len" "mov32")
>> - (set_attr "cc" "none,none,clobber,clobber,none,clobber")])
>> + (set_attr "adjust_len" "mov32")])
>> (define_peephole2 ; *reload_insf
>> [(match_scratch:QI 2 "d")
>> @@ -974,20 +1060,21 @@
>> "operands[1] != CONST0_RTX (SFmode)"
>> [(parallel [(set (match_dup 0)
>> (match_dup 1))
>> - (clobber (match_dup 2))])])
>> + (clobber (match_dup 2))
>> + (clobber (reg:CC REG_CC))])])
>> ;; '*' because it is not used in rtl generation.
>> (define_insn "*reload_insf"
>> [(set (match_operand:SF 0 "register_operand" "=r")
>> (match_operand:SF 1 "const_double_operand" "F"))
>> - (clobber (match_operand:QI 2 "register_operand" "=&d"))]
>> + (clobber (match_operand:QI 2 "register_operand" "=&d"))
>> + (clobber (reg:CC REG_CC))]
>> "reload_completed"
>> {
>> return output_reload_insisf (operands, operands[2], NULL);
>> }
>> [(set_attr "length" "8")
>> - (set_attr "adjust_len" "reload_in32")
>> - (set_attr "cc" "clobber")])
>> + (set_attr "adjust_len" "reload_in32")])
>> ;;=========================================================================
>> ;; move string (like memcpy)
>> @@ -1015,7 +1102,7 @@
>> ;; "cpymem_qi"
>> ;; "cpymem_hi"
>> -(define_insn "cpymem_<mode>"
>> +(define_insn_and_split "cpymem_<mode>"
>> [(set (mem:BLK (reg:HI REG_X))
>> (mem:BLK (reg:HI REG_Z)))
>> (unspec [(match_operand:QI 0 "const_int_operand" "n")]
>> @@ -1026,11 +1113,35 @@
>> (clobber (reg:QI LPM_REGNO))
>> (clobber (match_operand:QIHI 2 "register_operand" "=1"))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (mem:BLK (reg:HI REG_X))
>> + (mem:BLK (reg:HI REG_Z)))
>> + (unspec [(match_dup 0)]
>> + UNSPEC_CPYMEM)
>> + (use (match_dup 1))
>> + (clobber (reg:HI REG_X))
>> + (clobber (reg:HI REG_Z))
>> + (clobber (reg:QI LPM_REGNO))
>> + (clobber (match_dup 2))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*cpymem_<mode>"
>> + [(set (mem:BLK (reg:HI REG_X))
>> + (mem:BLK (reg:HI REG_Z)))
>> + (unspec [(match_operand:QI 0 "const_int_operand" "n")]
>> + UNSPEC_CPYMEM)
>> + (use (match_operand:QIHI 1 "register_operand" "<CPYMEM_r_d>"))
>> + (clobber (reg:HI REG_X))
>> + (clobber (reg:HI REG_Z))
>> + (clobber (reg:QI LPM_REGNO))
>> + (clobber (match_operand:QIHI 2 "register_operand" "=1"))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> return avr_out_cpymem (insn, operands, NULL);
>> }
>> - [(set_attr "adjust_len" "cpymem")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "adjust_len" "cpymem")])
>>
>> ;; $0 : Address Space
>> @@ -1041,7 +1152,8 @@
>> ;; "cpymemx_qi"
>> ;; "cpymemx_hi"
>> -(define_insn "cpymemx_<mode>"
>> +
>> +(define_insn_and_split "cpymemx_<mode>"
>> [(set (mem:BLK (reg:HI REG_X))
>> (mem:BLK (lo_sum:PSI (reg:QI 23)
>> (reg:HI REG_Z))))
>> @@ -1055,9 +1167,39 @@
>> (clobber (reg:QI 23))
>> (clobber (mem:QI (match_operand:QI 1 "io_address_operand" "n")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (mem:BLK (reg:HI REG_X))
>> + (mem:BLK (lo_sum:PSI (reg:QI 23)
>> + (reg:HI REG_Z))))
>> + (unspec [(match_dup 0)]
>> + UNSPEC_CPYMEM)
>> + (use (reg:QIHI 24))
>> + (clobber (reg:HI REG_X))
>> + (clobber (reg:HI REG_Z))
>> + (clobber (reg:QI LPM_REGNO))
>> + (clobber (reg:HI 24))
>> + (clobber (reg:QI 23))
>> + (clobber (mem:QI (match_dup 1)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*cpymemx_<mode>"
>> + [(set (mem:BLK (reg:HI REG_X))
>> + (mem:BLK (lo_sum:PSI (reg:QI 23)
>> + (reg:HI REG_Z))))
>> + (unspec [(match_operand:QI 0 "const_int_operand" "n")]
>> + UNSPEC_CPYMEM)
>> + (use (reg:QIHI 24))
>> + (clobber (reg:HI REG_X))
>> + (clobber (reg:HI REG_Z))
>> + (clobber (reg:QI LPM_REGNO))
>> + (clobber (reg:HI 24))
>> + (clobber (reg:QI 23))
>> + (clobber (mem:QI (match_operand:QI 1 "io_address_operand" "n")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "%~call __movmemx_<mode>"
>> - [(set_attr "type" "xcall")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "xcall")])
>
> Same (no reloads).
>
>>
>> ;; =%2 =%2 =%2 =%2 =%2 =%2 =%2 =%2 =%2 =%2 =%2 =%2 =%2 =%2 =%2 =%2 =%2 =%2
>> @@ -1091,7 +1233,7 @@
>> })
>>
>> -(define_insn "*clrmemqi"
>> +(define_insn_and_split "*clrmemqi_split"
>> [(set (mem:BLK (match_operand:HI 0 "register_operand" "e"))
>> (const_int 0))
>> (use (match_operand:QI 1 "register_operand" "r"))
>> @@ -1099,12 +1241,30 @@
>> (clobber (match_scratch:HI 3 "=0"))
>> (clobber (match_scratch:QI 4 "=&1"))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (mem:BLK (match_dup 0))
>> + (const_int 0))
>> + (use (match_dup 1))
>> + (use (match_dup 2))
>> + (clobber (match_dup 3))
>> + (clobber (match_dup 4))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*clrmemqi"
>> + [(set (mem:BLK (match_operand:HI 0 "register_operand" "e"))
>> + (const_int 0))
>> + (use (match_operand:QI 1 "register_operand" "r"))
>> + (use (match_operand:QI 2 "const_int_operand" "n"))
>> + (clobber (match_scratch:HI 3 "=0"))
>> + (clobber (match_scratch:QI 4 "=&1"))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "0:\;st %a0+,__zero_reg__\;dec %1\;brne 0b"
>> - [(set_attr "length" "3")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "length" "3")])
>>
>> -(define_insn "*clrmemhi"
>> +(define_insn_and_split "*clrmemhi_split"
>> [(set (mem:BLK (match_operand:HI 0 "register_operand" "e,e"))
>> (const_int 0))
>> (use (match_operand:HI 1 "register_operand" "!w,d"))
>> @@ -1112,11 +1272,30 @@
>> (clobber (match_scratch:HI 3 "=0,0"))
>> (clobber (match_scratch:HI 4 "=&1,&1"))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (mem:BLK (match_dup 0))
>> + (const_int 0))
>> + (use (match_dup 1))
>> + (use (match_dup 2))
>> + (clobber (match_dup 3))
>> + (clobber (match_dup 4))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +
>> +(define_insn "*clrmemhi"
>> + [(set (mem:BLK (match_operand:HI 0 "register_operand" "e,e"))
>> + (const_int 0))
>> + (use (match_operand:HI 1 "register_operand" "!w,d"))
>> + (use (match_operand:HI 2 "const_int_operand" "n,n"))
>> + (clobber (match_scratch:HI 3 "=0,0"))
>> + (clobber (match_scratch:HI 4 "=&1,&1"))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "@
>> 0:\;st %a0+,__zero_reg__\;sbiw %A1,1\;brne 0b
>> 0:\;st %a0+,__zero_reg__\;subi %A1,1\;sbci %B1,0\;brne 0b"
>> - [(set_attr "length" "3,4")
>> - (set_attr "cc" "clobber,clobber")])
>> + [(set_attr "length" "3,4")])
>> (define_expand "strlenhi"
>> [(set (match_dup 4)
>> @@ -1142,27 +1321,57 @@
>> operands[4] = gen_reg_rtx (HImode);
>> })
>> -(define_insn "*strlenhi"
>> +(define_insn_and_split "*strlenhi_split"
>> [(set (match_operand:HI 0 "register_operand" "=e")
>> (unspec:HI [(mem:BLK (match_operand:HI 1 "register_operand" "0"))
>> (const_int 0)
>> (match_operand:HI 2 "immediate_operand" "i")]
>> UNSPEC_STRLEN))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel
>> + [(set (match_dup 0)
>> + (unspec:HI [(mem:BLK (match_dup 1))
>> + (const_int 0)
>> + (match_dup 2)]
>> + UNSPEC_STRLEN))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*strlenhi"
>> + [(set (match_operand:HI 0 "register_operand" "=e")
>> + (unspec:HI [(mem:BLK (match_operand:HI 1 "register_operand" "0"))
>> + (const_int 0)
>> + (match_operand:HI 2 "immediate_operand" "i")]
>> + UNSPEC_STRLEN))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "0:\;ld __tmp_reg__,%a0+\;tst __tmp_reg__\;brne 0b"
>> - [(set_attr "length" "3")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "length" "3")])
>> ;+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>> ; add bytes
>> ;; "addqi3"
>> ;; "addqq3" "adduqq3"
>> -(define_insn "add<mode>3"
>> +(define_insn_and_split "add<mode>3"
>> [(set (match_operand:ALL1 0 "register_operand" "=r,d ,r ,r ,r ,r")
>> (plus:ALL1 (match_operand:ALL1 1 "register_operand" "%0,0 ,0 ,0 ,0 ,0")
>> (match_operand:ALL1 2 "nonmemory_operand" "r,n Ynn,Y01,Ym1,Y02,Ym2")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (plus:ALL1 (match_dup 1)
>> + (match_dup 2)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*add<mode>3"
>> + [(set (match_operand:ALL1 0 "register_operand" "=r,d ,r ,r ,r ,r")
>> + (plus:ALL1 (match_operand:ALL1 1 "register_operand" "%0,0 ,0 ,0 ,0 ,0")
>> + (match_operand:ALL1 2 "nonmemory_operand" "r,n Ynn,Y01,Ym1,Y02,Ym2")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "@
>> add %0,%2
>> subi %0,lo8(-(%2))
>> @@ -1170,8 +1379,7 @@
>> dec %0
>> inc %0\;inc %0
>> dec %0\;dec %0"
>> - [(set_attr "length" "1,1,1,1,2,2")
>> - (set_attr "cc" "set_czn,set_czn,set_vzn,set_vzn,set_vzn,set_vzn")])
>> + [(set_attr "length" "1,1,1,1,2,2")])
>> ;; "addhi3"
>> ;; "addhq3" "adduhq3"
>> @@ -1205,67 +1413,144 @@
>> })
>>
>> -(define_insn "*addhi3_zero_extend"
>> +(define_insn_and_split "*addhi3_zero_extend_split"
>> [(set (match_operand:HI 0 "register_operand" "=r,*?r")
>> (plus:HI (zero_extend:HI (match_operand:QI 1 "register_operand" "r ,0"))
>> (match_operand:HI 2 "register_operand" "0 ,r")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (plus:HI (zero_extend:HI (match_dup 1))
>> + (match_dup 2)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*addhi3_zero_extend"
>> + [(set (match_operand:HI 0 "register_operand" "=r,*?r")
>> + (plus:HI (zero_extend:HI (match_operand:QI 1 "register_operand" "r ,0"))
>> + (match_operand:HI 2 "register_operand" "0 ,r")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "@
>> add %A0,%1\;adc %B0,__zero_reg__
>> add %A0,%A2\;mov %B0,%B2\;adc %B0,__zero_reg__"
>> - [(set_attr "length" "2,3")
>> - (set_attr "cc" "set_n")])
>> + [(set_attr "length" "2,3")])
>> -(define_insn "*addhi3_zero_extend1"
>> +(define_insn_and_split "*addhi3_zero_extend1_split"
>> [(set (match_operand:HI 0 "register_operand" "=r")
>> (plus:HI (match_operand:HI 1 "register_operand" "0")
>> (zero_extend:HI (match_operand:QI 2 "register_operand" "r"))))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (plus:HI (match_dup 1)
>> + (zero_extend:HI (match_dup 2))))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*addhi3_zero_extend1"
>> + [(set (match_operand:HI 0 "register_operand" "=r")
>> + (plus:HI (match_operand:HI 1 "register_operand" "0")
>> + (zero_extend:HI (match_operand:QI 2 "register_operand" "r"))))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "add %A0,%2\;adc %B0,__zero_reg__"
>> - [(set_attr "length" "2")
>> - (set_attr "cc" "set_n")])
>> + [(set_attr "length" "2")])
>> -(define_insn "*addhi3.sign_extend1"
>> +(define_insn_and_split "*addhi3.sign_extend1_split"
>> [(set (match_operand:HI 0 "register_operand" "=r")
>> (plus:HI (sign_extend:HI (match_operand:QI 1 "register_operand" "r"))
>> (match_operand:HI 2 "register_operand" "0")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel
>> + [(set (match_dup 0)
>> + (plus:HI
>> + (sign_extend:HI (match_dup 1))
>> + (match_dup 2)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +
>> +(define_insn "*addhi3.sign_extend1"
>> + [(set (match_operand:HI 0 "register_operand" "=r")
>> + (plus:HI (sign_extend:HI (match_operand:QI 1 "register_operand" "r"))
>> + (match_operand:HI 2 "register_operand" "0")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> return reg_overlap_mentioned_p (operands[0], operands[1])
>> ? "mov __tmp_reg__,%1\;add %A0,%1\;adc %B0,__zero_reg__\;sbrc __tmp_reg__,7\;dec %B0"
>> : "add %A0,%1\;adc %B0,__zero_reg__\;sbrc %1,7\;dec %B0";
>> }
>> - [(set_attr "length" "5")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "length" "5")])
>> -(define_insn "*addhi3_zero_extend.const"
>> +(define_insn_and_split "*addhi3_zero_extend.const_split"
>> [(set (match_operand:HI 0 "register_operand" "=d")
>> (plus:HI (zero_extend:HI (match_operand:QI 1 "register_operand" "0"))
>> (match_operand:HI 2 "const_m255_to_m1_operand" "Cn8")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (plus:HI (zero_extend:HI (match_dup 1))
>> + (match_dup 2)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*addhi3_zero_extend.const"
>> + [(set (match_operand:HI 0 "register_operand" "=d")
>> + (plus:HI (zero_extend:HI (match_operand:QI 1 "register_operand" "0"))
>> + (match_operand:HI 2 "const_m255_to_m1_operand" "Cn8")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "subi %A0,%n2\;sbc %B0,%B0"
>> - [(set_attr "length" "2")
>> - (set_attr "cc" "set_czn")])
>> + [(set_attr "length" "2")])
>> -(define_insn "*usum_widenqihi3"
>> +(define_insn_and_split "*usum_widenqihi3_split"
>> [(set (match_operand:HI 0 "register_operand" "=r")
>> (plus:HI (zero_extend:HI (match_operand:QI 1 "register_operand" "0"))
>> (zero_extend:HI (match_operand:QI 2 "register_operand" "r"))))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (plus:HI
>> + (zero_extend:HI (match_dup 1))
>> + (zero_extend:HI (match_dup 2))))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +
>> +(define_insn "*usum_widenqihi3"
>> + [(set (match_operand:HI 0 "register_operand" "=r")
>> + (plus:HI (zero_extend:HI (match_operand:QI 1 "register_operand" "0"))
>> + (zero_extend:HI (match_operand:QI 2 "register_operand" "r"))))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "add %A0,%2\;clr %B0\;rol %B0"
>> - [(set_attr "length" "3")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "length" "3")])
>> -(define_insn "*udiff_widenqihi3"
>> +(define_insn_and_split "*udiff_widenqihi3_split"
>> [(set (match_operand:HI 0 "register_operand" "=r")
>> (minus:HI (zero_extend:HI (match_operand:QI 1 "register_operand" "0"))
>> (zero_extend:HI (match_operand:QI 2 "register_operand" "r"))))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (minus:HI (zero_extend:HI (match_dup 1))
>> + (zero_extend:HI (match_dup 2))))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*udiff_widenqihi3"
>> + [(set (match_operand:HI 0 "register_operand" "=r")
>> + (minus:HI (zero_extend:HI (match_operand:QI 1 "register_operand" "0"))
>> + (zero_extend:HI (match_operand:QI 2 "register_operand" "r"))))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "sub %A0,%2\;sbc %B0,%B0"
>> - [(set_attr "length" "2")
>> - (set_attr "cc" "set_czn")])
>> + [(set_attr "length" "2")])
>> -(define_insn "*addhi3_sp"
>> +(define_insn_and_split "*addhi3_sp"
>> [(set (match_operand:HI 1 "stack_register_operand" "=q")
>> (plus:HI (match_operand:HI 2 "stack_register_operand" "q")
>> (match_operand:HI 0 "avr_sp_immediate_operand" "Csp")))]
>> @@ -1273,23 +1558,44 @@
>> {
>> return avr_out_addto_sp (operands, NULL);
>> }
>> + ""
>> + [(const_int 0)]
>> + {
>> + /* Do not attempt to split this pattern. This FAIL is necessary
>> + to prevent the splitter from matching *add<ALL2>3_split, splitting
>> + it, and then failing later because constraints don't match, as split
>> + does not look at constraints. */
>> + FAIL;
>> + }
>> [(set_attr "length" "6")
>> (set_attr "adjust_len" "addto_sp")])
>> ;; "*addhi3"
>> ;; "*addhq3" "*adduhq3"
>> ;; "*addha3" "*adduha3"
>> -(define_insn "*add<mode>3"
>> +(define_insn_and_split "*add<mode>3_split"
>> [(set (match_operand:ALL2 0 "register_operand" "=??r,d,!w ,d")
>> (plus:ALL2 (match_operand:ALL2 1 "register_operand" "%0,0,0 ,0")
>> (match_operand:ALL2 2 "nonmemory_or_const_operand" "r,s,IJ YIJ,n Ynn")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (plus:ALL2 (match_dup 1)
>> + (match_dup 2)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*add<mode>3"
>> + [(set (match_operand:ALL2 0 "register_operand" "=??r,d,!w ,d")
>> + (plus:ALL2 (match_operand:ALL2 1 "register_operand" "%0,0,0 ,0")
>> + (match_operand:ALL2 2 "nonmemory_or_const_operand" "r,s,IJ YIJ,n Ynn")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> return avr_out_plus (insn, operands);
>> }
>> [(set_attr "length" "2")
>> - (set_attr "adjust_len" "plus")
>> - (set_attr "cc" "plus")])
>> + (set_attr "adjust_len" "plus")])
>> ;; Adding a constant to NO_LD_REGS might have lead to a reload of
>> ;; that constant to LD_REGS. We don't add a scratch to *addhi3
>> @@ -1329,140 +1635,303 @@
>> ;; "addhi3_clobber"
>> ;; "addhq3_clobber" "adduhq3_clobber"
>> ;; "addha3_clobber" "adduha3_clobber"
>> -(define_insn "add<mode>3_clobber"
>> +(define_insn_and_split "add<mode>3_clobber"
>> [(set (match_operand:ALL2 0 "register_operand" "=!w ,d ,r")
>> (plus:ALL2 (match_operand:ALL2 1 "register_operand" "%0 ,0 ,0")
>> (match_operand:ALL2 2 "const_operand" "IJ YIJ,n Ynn,n Ynn")))
>> (clobber (match_scratch:QI 3 "=X ,X ,&d"))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (plus:ALL2 (match_dup 1)
>> + (match_dup 2)))
>> + (clobber (match_dup 3))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*add<mode>3_clobber"
>> + [(set (match_operand:ALL2 0 "register_operand" "=!w ,d ,r")
>> + (plus:ALL2 (match_operand:ALL2 1 "register_operand" "%0 ,0 ,0")
>> + (match_operand:ALL2 2 "const_operand" "IJ YIJ,n Ynn,n Ynn")))
>> + (clobber (match_scratch:QI 3 "=X ,X ,&d"))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> return avr_out_plus (insn, operands);
>> }
>> [(set_attr "length" "4")
>> - (set_attr "adjust_len" "plus")
>> - (set_attr "cc" "plus")])
>> + (set_attr "adjust_len" "plus")])
>>
>> ;; "addsi3"
>> ;; "addsq3" "addusq3"
>> ;; "addsa3" "addusa3"
>> -(define_insn "add<mode>3"
>> +(define_insn_and_split "add<mode>3"
>> [(set (match_operand:ALL4 0 "register_operand" "=??r,d ,r")
>> (plus:ALL4 (match_operand:ALL4 1 "register_operand" "%0,0 ,0")
>> (match_operand:ALL4 2 "nonmemory_operand" "r,i ,n Ynn")))
>> (clobber (match_scratch:QI 3 "=X,X ,&d"))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (plus:ALL4 (match_dup 1)
>> + (match_dup 2)))
>> + (clobber (match_dup 3))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*add<mode>3"
>> + [(set (match_operand:ALL4 0 "register_operand" "=??r,d ,r")
>> + (plus:ALL4 (match_operand:ALL4 1 "register_operand" "%0,0 ,0")
>> + (match_operand:ALL4 2 "nonmemory_operand" "r,i ,n Ynn")))
>> + (clobber (match_scratch:QI 3 "=X,X ,&d"))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> return avr_out_plus (insn, operands);
>> }
>> [(set_attr "length" "4")
>> - (set_attr "adjust_len" "plus")
>> - (set_attr "cc" "plus")])
>> + (set_attr "adjust_len" "plus")])
>> -(define_insn "*addpsi3_zero_extend.qi"
>> +(define_insn_and_split "*addpsi3_zero_extend.qi_split"
>> [(set (match_operand:PSI 0 "register_operand" "=r")
>> (plus:PSI (zero_extend:PSI (match_operand:QI 1 "register_operand" "r"))
>> (match_operand:PSI 2 "register_operand" "0")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (plus:PSI (zero_extend:PSI (match_dup 1))
>> + (match_dup 2)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*addpsi3_zero_extend.qi"
>> + [(set (match_operand:PSI 0 "register_operand" "=r")
>> + (plus:PSI (zero_extend:PSI (match_operand:QI 1 "register_operand" "r"))
>> + (match_operand:PSI 2 "register_operand" "0")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "add %A0,%A1\;adc %B0,__zero_reg__\;adc %C0,__zero_reg__"
>> - [(set_attr "length" "3")
>> - (set_attr "cc" "set_n")])
>> + [(set_attr "length" "3")])
>> -(define_insn "*addpsi3_zero_extend.hi"
>> +(define_insn_and_split "*addpsi3_zero_extend.hi_split"
>> [(set (match_operand:PSI 0 "register_operand" "=r")
>> (plus:PSI (zero_extend:PSI (match_operand:HI 1 "register_operand" "r"))
>> (match_operand:PSI 2 "register_operand" "0")))]
>> ""
>> - "add %A0,%A1\;adc %B0,%B1\;adc %C0,__zero_reg__"
>> - [(set_attr "length" "3")
>> - (set_attr "cc" "set_n")])
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (plus:PSI (zero_extend:PSI (match_dup 1))
>> + (match_dup 2)))
>> + (clobber (reg:CC REG_CC))])])
>> -(define_insn "*addpsi3_sign_extend.hi"
>> +(define_insn "*addpsi3_zero_extend.hi"
>> + [(set (match_operand:PSI 0 "register_operand" "=r")
>> + (plus:PSI (zero_extend:PSI (match_operand:HI 1 "register_operand" "r"))
>> + (match_operand:PSI 2 "register_operand" "0")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> + "add %A0,%A1\;adc %B0,%B1\;adc %C0,__zero_reg__"
>> + [(set_attr "length" "3")])
>> +
>> +(define_insn_and_split "*addpsi3_sign_extend.hi_split"
>> [(set (match_operand:PSI 0 "register_operand" "=r")
>> (plus:PSI (sign_extend:PSI (match_operand:HI 1 "register_operand" "r"))
>> (match_operand:PSI 2 "register_operand" "0")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (plus:PSI (sign_extend:PSI (match_dup 1))
>> + (match_dup 2)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*addpsi3_sign_extend.hi"
>> + [(set (match_operand:PSI 0 "register_operand" "=r")
>> + (plus:PSI (sign_extend:PSI (match_operand:HI 1 "register_operand" "r"))
>> + (match_operand:PSI 2 "register_operand" "0")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "add %A0,%1\;adc %B0,%B1\;adc %C0,__zero_reg__\;sbrc %B1,7\;dec %C0"
>> - [(set_attr "length" "5")
>> - (set_attr "cc" "set_n")])
>> + [(set_attr "length" "5")])
>> -(define_insn "*addsi3_zero_extend"
>> +(define_insn_and_split "*addsi3_zero_extend_split"
>> [(set (match_operand:SI 0 "register_operand" "=r")
>> (plus:SI (zero_extend:SI (match_operand:QI 1 "register_operand" "r"))
>> (match_operand:SI 2 "register_operand" "0")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (plus:SI (zero_extend:SI (match_dup 1))
>> + (match_dup 2)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*addsi3_zero_extend"
>> + [(set (match_operand:SI 0 "register_operand" "=r")
>> + (plus:SI (zero_extend:SI (match_operand:QI 1 "register_operand" "r"))
>> + (match_operand:SI 2 "register_operand" "0")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "add %A0,%1\;adc %B0,__zero_reg__\;adc %C0,__zero_reg__\;adc %D0,__zero_reg__"
>> - [(set_attr "length" "4")
>> - (set_attr "cc" "set_n")])
>> + [(set_attr "length" "4")])
>> -(define_insn "*addsi3_zero_extend.hi"
>> +(define_insn_and_split "*addsi3_zero_extend.hi_split"
>> [(set (match_operand:SI 0 "register_operand" "=r")
>> (plus:SI (zero_extend:SI (match_operand:HI 1 "register_operand" "r"))
>> (match_operand:SI 2 "register_operand" "0")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (plus:SI (zero_extend:SI (match_dup 1))
>> + (match_dup 2)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*addsi3_zero_extend.hi"
>> + [(set (match_operand:SI 0 "register_operand" "=r")
>> + (plus:SI (zero_extend:SI (match_operand:HI 1 "register_operand" "r"))
>> + (match_operand:SI 2 "register_operand" "0")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "add %A0,%1\;adc %B0,%B1\;adc %C0,__zero_reg__\;adc %D0,__zero_reg__"
>> - [(set_attr "length" "4")
>> - (set_attr "cc" "set_n")])
>> + [(set_attr "length" "4")])
>> -(define_insn "addpsi3"
>> +(define_insn_and_split "addpsi3"
>> [(set (match_operand:PSI 0 "register_operand" "=??r,d ,d,r")
>> (plus:PSI (match_operand:PSI 1 "register_operand" "%0,0 ,0,0")
>> (match_operand:PSI 2 "nonmemory_operand" "r,s ,n,n")))
>> (clobber (match_scratch:QI 3 "=X,X ,X,&d"))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (plus:PSI (match_dup 1)
>> + (match_dup 2)))
>> + (clobber (match_dup 3 ))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*addpsi3"
>> + [(set (match_operand:PSI 0 "register_operand" "=??r,d ,d,r")
>> + (plus:PSI (match_operand:PSI 1 "register_operand" "%0,0 ,0,0")
>> + (match_operand:PSI 2 "nonmemory_operand" "r,s ,n,n")))
>> + (clobber (match_scratch:QI 3 "=X,X ,X,&d"))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> return avr_out_plus (insn, operands);
>> }
>> [(set_attr "length" "3")
>> - (set_attr "adjust_len" "plus")
>> - (set_attr "cc" "plus")])
>> + (set_attr "adjust_len" "plus")])
>> -(define_insn "subpsi3"
>> +(define_insn_and_split "subpsi3"
>> [(set (match_operand:PSI 0 "register_operand" "=r")
>> (minus:PSI (match_operand:PSI 1 "register_operand" "0")
>> (match_operand:PSI 2 "register_operand" "r")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (minus:PSI (match_dup 1)
>> + (match_dup 2)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*subpsi3"
>> + [(set (match_operand:PSI 0 "register_operand" "=r")
>> + (minus:PSI (match_operand:PSI 1 "register_operand" "0")
>> + (match_operand:PSI 2 "register_operand" "r")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "sub %0,%2\;sbc %B0,%B2\;sbc %C0,%C2"
>> - [(set_attr "length" "3")
>> - (set_attr "cc" "set_czn")])
>> + [(set_attr "length" "3")])
>> -(define_insn "*subpsi3_zero_extend.qi"
>> +(define_insn_and_split "*subpsi3_zero_extend.qi_split"
>> [(set (match_operand:PSI 0 "register_operand" "=r")
>> (minus:PSI (match_operand:SI 1 "register_operand" "0")
>> (zero_extend:PSI (match_operand:QI 2 "register_operand" "r"))))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (minus:PSI (match_dup 1)
>> + (zero_extend:PSI (match_dup 2))))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*subpsi3_zero_extend.qi"
>> + [(set (match_operand:PSI 0 "register_operand" "=r")
>> + (minus:PSI (match_operand:SI 1 "register_operand" "0")
>> + (zero_extend:PSI (match_operand:QI 2 "register_operand" "r"))))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "sub %A0,%2\;sbc %B0,__zero_reg__\;sbc %C0,__zero_reg__"
>> - [(set_attr "length" "3")
>> - (set_attr "cc" "set_czn")])
>> + [(set_attr "length" "3")])
>> -(define_insn "*subpsi3_zero_extend.hi"
>> +(define_insn_and_split "*subpsi3_zero_extend.hi_split"
>> [(set (match_operand:PSI 0 "register_operand" "=r")
>> (minus:PSI (match_operand:PSI 1 "register_operand" "0")
>> (zero_extend:PSI (match_operand:HI 2 "register_operand" "r"))))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (minus:PSI (match_dup 1)
>> + (zero_extend:PSI (match_dup 2))))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*subpsi3_zero_extend.hi"
>> + [(set (match_operand:PSI 0 "register_operand" "=r")
>> + (minus:PSI (match_operand:PSI 1 "register_operand" "0")
>> + (zero_extend:PSI (match_operand:HI 2 "register_operand" "r"))))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "sub %A0,%2\;sbc %B0,%B2\;sbc %C0,__zero_reg__"
>> - [(set_attr "length" "3")
>> - (set_attr "cc" "set_czn")])
>> + [(set_attr "length" "3")])
>> -(define_insn "*subpsi3_sign_extend.hi"
>> +(define_insn_and_split "*subpsi3_sign_extend.hi_split"
>> [(set (match_operand:PSI 0 "register_operand" "=r")
>> (minus:PSI (match_operand:PSI 1 "register_operand" "0")
>> (sign_extend:PSI (match_operand:HI 2 "register_operand" "r"))))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (minus:PSI (match_dup 1)
>> + (sign_extend:PSI (match_dup 2))))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*subpsi3_sign_extend.hi"
>> + [(set (match_operand:PSI 0 "register_operand" "=r")
>> + (minus:PSI (match_operand:PSI 1 "register_operand" "0")
>> + (sign_extend:PSI (match_operand:HI 2 "register_operand" "r"))))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "sub %A0,%A2\;sbc %B0,%B2\;sbc %C0,__zero_reg__\;sbrc %B2,7\;inc %C0"
>> - [(set_attr "length" "5")
>> - (set_attr "cc" "set_czn")])
>> + [(set_attr "length" "5")])
>> ;-----------------------------------------------------------------------------
>> ; sub bytes
>> ;; "subqi3"
>> ;; "subqq3" "subuqq3"
>> -(define_insn "sub<mode>3"
>> +(define_insn_and_split "sub<mode>3"
>> [(set (match_operand:ALL1 0 "register_operand" "=??r,d ,r ,r ,r ,r")
>> (minus:ALL1 (match_operand:ALL1 1 "register_operand" "0,0 ,0 ,0 ,0 ,0")
>> (match_operand:ALL1 2 "nonmemory_or_const_operand" "r,n Ynn,Y01,Ym1,Y02,Ym2")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (minus:ALL1 (match_dup 1)
>> + (match_dup 2)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*sub<mode>3"
>> + [(set (match_operand:ALL1 0 "register_operand" "=??r,d ,r ,r ,r ,r")
>> + (minus:ALL1 (match_operand:ALL1 1 "register_operand" "0,0 ,0 ,0 ,0 ,0")
>> + (match_operand:ALL1 2 "nonmemory_or_const_operand" "r,n Ynn,Y01,Ym1,Y02,Ym2")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "@
>> sub %0,%2
>> subi %0,lo8(%2)
>> @@ -1470,78 +1939,155 @@
>> inc %0
>> dec %0\;dec %0
>> inc %0\;inc %0"
>> - [(set_attr "length" "1,1,1,1,2,2")
>> - (set_attr "cc" "set_czn,set_czn,set_vzn,set_vzn,set_vzn,set_vzn")])
>> + [(set_attr "length" "1,1,1,1,2,2")])
>> ;; "subhi3"
>> ;; "subhq3" "subuhq3"
>> ;; "subha3" "subuha3"
>> -(define_insn "sub<mode>3"
>> +(define_insn_and_split "sub<mode>3"
>> [(set (match_operand:ALL2 0 "register_operand" "=??r,d ,*r")
>> (minus:ALL2 (match_operand:ALL2 1 "register_operand" "0,0 ,0")
>> (match_operand:ALL2 2 "nonmemory_or_const_operand" "r,i Ynn,Ynn")))
>> (clobber (match_scratch:QI 3 "=X,X ,&d"))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (minus:ALL2 (match_dup 1)
>> + (match_dup 2)))
>> + (clobber (match_dup 3))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*sub<mode>3"
>> + [(set (match_operand:ALL2 0 "register_operand" "=??r,d ,*r")
>> + (minus:ALL2 (match_operand:ALL2 1 "register_operand" "0,0 ,0")
>> + (match_operand:ALL2 2 "nonmemory_or_const_operand" "r,i Ynn,Ynn")))
>> + (clobber (match_scratch:QI 3 "=X,X ,&d"))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> return avr_out_plus (insn, operands);
>> }
>> - [(set_attr "adjust_len" "plus")
>> - (set_attr "cc" "plus")])
>> + [(set_attr "adjust_len" "plus")])
>> -(define_insn "*subhi3_zero_extend1"
>> +(define_insn_and_split "*subhi3_zero_extend1_split"
>> [(set (match_operand:HI 0 "register_operand" "=r")
>> (minus:HI (match_operand:HI 1 "register_operand" "0")
>> (zero_extend:HI (match_operand:QI 2 "register_operand" "r"))))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (minus:HI (match_dup 1)
>> + (zero_extend:HI (match_dup 2))))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*subhi3_zero_extend1"
>> + [(set (match_operand:HI 0 "register_operand" "=r")
>> + (minus:HI (match_operand:HI 1 "register_operand" "0")
>> + (zero_extend:HI (match_operand:QI 2 "register_operand" "r"))))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "sub %A0,%2\;sbc %B0,__zero_reg__"
>> - [(set_attr "length" "2")
>> - (set_attr "cc" "set_czn")])
>> + [(set_attr "length" "2")])
>> -(define_insn "*subhi3.sign_extend2"
>> +(define_insn_and_split "*subhi3.sign_extend2_split"
>> [(set (match_operand:HI 0 "register_operand" "=r")
>> (minus:HI (match_operand:HI 1 "register_operand" "0")
>> (sign_extend:HI (match_operand:QI 2 "register_operand" "r"))))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (minus:HI (match_dup 1)
>> + (sign_extend:HI (match_dup 2))))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +
>> +(define_insn "*subhi3.sign_extend2"
>> + [(set (match_operand:HI 0 "register_operand" "=r")
>> + (minus:HI (match_operand:HI 1 "register_operand" "0")
>> + (sign_extend:HI (match_operand:QI 2 "register_operand" "r"))))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> return reg_overlap_mentioned_p (operands[0], operands[2])
>> ? "mov __tmp_reg__,%2\;sub %A0,%2\;sbc %B0,__zero_reg__\;sbrc __tmp_reg__,7\;inc %B0"
>> : "sub %A0,%2\;sbc %B0,__zero_reg__\;sbrc %2,7\;inc %B0";
>> }
>> - [(set_attr "length" "5")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "length" "5")])
>> ;; "subsi3"
>> ;; "subsq3" "subusq3"
>> ;; "subsa3" "subusa3"
>> -(define_insn "sub<mode>3"
>> +(define_insn_and_split "sub<mode>3"
>> [(set (match_operand:ALL4 0 "register_operand" "=??r,d ,r")
>> (minus:ALL4 (match_operand:ALL4 1 "register_operand" "0,0 ,0")
>> (match_operand:ALL4 2 "nonmemory_or_const_operand" "r,n Ynn,Ynn")))
>> (clobber (match_scratch:QI 3 "=X,X ,&d"))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (minus:ALL4 (match_dup 1)
>> + (match_dup 2)))
>> + (clobber (match_dup 3))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*sub<mode>3"
>> + [(set (match_operand:ALL4 0 "register_operand" "=??r,d ,r")
>> + (minus:ALL4 (match_operand:ALL4 1 "register_operand" "0,0 ,0")
>> + (match_operand:ALL4 2 "nonmemory_or_const_operand" "r,n Ynn,Ynn")))
>> + (clobber (match_scratch:QI 3 "=X,X ,&d"))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> return avr_out_plus (insn, operands);
>> }
>> - [(set_attr "adjust_len" "plus")
>> - (set_attr "cc" "plus")])
>> + [(set_attr "adjust_len" "plus")])
>> -(define_insn "*subsi3_zero_extend"
>> +(define_insn_and_split "*subsi3_zero_extend_split"
>> [(set (match_operand:SI 0 "register_operand" "=r")
>> (minus:SI (match_operand:SI 1 "register_operand" "0")
>> (zero_extend:SI (match_operand:QI 2 "register_operand" "r"))))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (minus:SI (match_dup 1)
>> + (zero_extend:SI (match_dup 2))))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*subsi3_zero_extend"
>> + [(set (match_operand:SI 0 "register_operand" "=r")
>> + (minus:SI (match_operand:SI 1 "register_operand" "0")
>> + (zero_extend:SI (match_operand:QI 2 "register_operand" "r"))))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "sub %A0,%2\;sbc %B0,__zero_reg__\;sbc %C0,__zero_reg__\;sbc %D0,__zero_reg__"
>> [(set_attr "length" "4")
>> - (set_attr "cc" "set_czn")])
>> + ])
>> -(define_insn "*subsi3_zero_extend.hi"
>> +(define_insn_and_split "*subsi3_zero_extend.hi_split"
>> [(set (match_operand:SI 0 "register_operand" "=r")
>> (minus:SI (match_operand:SI 1 "register_operand" "0")
>> (zero_extend:SI (match_operand:HI 2 "register_operand" "r"))))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (minus:SI (match_dup 1)
>> + (zero_extend:SI (match_dup 2))))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*subsi3_zero_extend.hi"
>> + [(set (match_operand:SI 0 "register_operand" "=r")
>> + (minus:SI (match_operand:SI 1 "register_operand" "0")
>> + (zero_extend:SI (match_operand:HI 2 "register_operand" "r"))))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "sub %A0,%2\;sbc %B0,%B2\;sbc %C0,__zero_reg__\;sbc %D0,__zero_reg__"
>> - [(set_attr "length" "4")
>> - (set_attr "cc" "set_czn")])
>> + [(set_attr "length" "4")])
>> ;******************************************************************************
>> ; mul
>> @@ -1559,16 +2105,28 @@
>> }
>> })
>> -(define_insn "*mulqi3_enh"
>> +(define_insn_and_split "*mulqi3_enh_split"
>> [(set (match_operand:QI 0 "register_operand" "=r")
>> (mult:QI (match_operand:QI 1 "register_operand" "r")
>> (match_operand:QI 2 "register_operand" "r")))]
>> "AVR_HAVE_MUL"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (mult:QI (match_dup 1)
>> + (match_dup 2)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*mulqi3_enh"
>> + [(set (match_operand:QI 0 "register_operand" "=r")
>> + (mult:QI (match_operand:QI 1 "register_operand" "r")
>> + (match_operand:QI 2 "register_operand" "r")))
>> + (clobber (reg:CC REG_CC))]
>> + "AVR_HAVE_MUL && reload_completed"
>> "mul %1,%2
>> mov %0,r0
>> clr r1"
>> - [(set_attr "length" "3")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "length" "3")])
>> (define_expand "mulqi3_call"
>> [(set (reg:QI 24) (match_operand:QI 1 "register_operand" ""))
>> @@ -1581,189 +2139,392 @@
>> avr_fix_inputs (operands, 1 << 2, regmask (QImode, 24));
>> })
>> -(define_insn "*mulqi3_call"
>> +(define_insn_and_split "*mulqi3_call_split"
>> [(set (reg:QI 24) (mult:QI (reg:QI 24) (reg:QI 22)))
>> (clobber (reg:QI 22))]
>> "!AVR_HAVE_MUL"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:QI 24) (mult:QI (reg:QI 24) (reg:QI 22)))
>> + (clobber (reg:QI 22))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*mulqi3_call"
>> + [(set (reg:QI 24) (mult:QI (reg:QI 24) (reg:QI 22)))
>> + (clobber (reg:QI 22))
>> + (clobber (reg:CC REG_CC))]
>> + "!AVR_HAVE_MUL && reload_completed"
>> "%~call __mulqi3"
>> - [(set_attr "type" "xcall")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "xcall")])
>
> Same (no reloads).
>
>> ;; "umulqi3_highpart"
>> ;; "smulqi3_highpart"
>> -(define_insn "<extend_su>mulqi3_highpart"
>> +
>> +(define_insn_and_split "<extend_su>mulqi3_highpart"
>> [(set (match_operand:QI 0 "register_operand" "=r")
>> (truncate:QI
>> (lshiftrt:HI (mult:HI (any_extend:HI (match_operand:QI 1 "register_operand" "<mul_r_d>"))
>> (any_extend:HI (match_operand:QI 2 "register_operand" "<mul_r_d>")))
>> (const_int 8))))]
>> "AVR_HAVE_MUL"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (truncate:QI
>> + (lshiftrt:HI (mult:HI (any_extend:HI (match_dup 1))
>> + (any_extend:HI (match_dup 2)))
>> + (const_int 8))))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*<extend_su>mulqi3_highpart"
>> + [(set (match_operand:QI 0 "register_operand" "=r")
>> + (truncate:QI
>> + (lshiftrt:HI (mult:HI (any_extend:HI (match_operand:QI 1 "register_operand" "<mul_r_d>"))
>> + (any_extend:HI (match_operand:QI 2 "register_operand" "<mul_r_d>")))
>> + (const_int 8))))
>> + (clobber (reg:CC REG_CC))]
>> + "AVR_HAVE_MUL && reload_completed"
>> "mul<extend_s> %1,%2
>> mov %0,r1
>> clr __zero_reg__"
>> - [(set_attr "length" "3")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "length" "3")])
>>
>> ;; Used when expanding div or mod inline for some special values
>> -(define_insn "*subqi3.ashiftrt7"
>> +(define_insn_and_split "*subqi3.ashiftrt7_split"
>> [(set (match_operand:QI 0 "register_operand" "=r")
>> (minus:QI (match_operand:QI 1 "register_operand" "0")
>> (ashiftrt:QI (match_operand:QI 2 "register_operand" "r")
>> (const_int 7))))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (minus:QI (match_dup 1)
>> + (ashiftrt:QI (match_dup 2)
>> + (const_int 7))))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*subqi3.ashiftrt7"
>> + [(set (match_operand:QI 0 "register_operand" "=r")
>> + (minus:QI (match_operand:QI 1 "register_operand" "0")
>> + (ashiftrt:QI (match_operand:QI 2 "register_operand" "r")
>> + (const_int 7))))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "sbrc %2,7\;inc %0"
>> - [(set_attr "length" "2")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "length" "2")])
>> -(define_insn "*addqi3.lt0"
>> +(define_insn_and_split "*addqi3.lt0_split"
>> [(set (match_operand:QI 0 "register_operand" "=r")
>> (plus:QI (lt:QI (match_operand:QI 1 "register_operand" "r")
>> (const_int 0))
>> (match_operand:QI 2 "register_operand" "0")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (plus:QI (lt:QI (match_dup 1)
>> + (const_int 0))
>> + (match_dup 2)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*addqi3.lt0"
>> + [(set (match_operand:QI 0 "register_operand" "=r")
>> + (plus:QI (lt:QI (match_operand:QI 1 "register_operand" "r")
>> + (const_int 0))
>> + (match_operand:QI 2 "register_operand" "0")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "sbrc %1,7\;inc %0"
>> - [(set_attr "length" "2")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "length" "2")])
>> -(define_insn "*addhi3.lt0"
>> +(define_insn_and_split "*addhi3.lt0_split"
>> [(set (match_operand:HI 0 "register_operand" "=w,r")
>> (plus:HI (lt:HI (match_operand:QI 1 "register_operand" "r,r")
>> (const_int 0))
>> (match_operand:HI 2 "register_operand" "0,0")))
>> (clobber (match_scratch:QI 3 "=X,&1"))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (plus:HI (lt:HI (match_dup 1)
>> + (const_int 0))
>> + (match_dup 2)))
>> + (clobber (match_dup 3))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*addhi3.lt0"
>> + [(set (match_operand:HI 0 "register_operand" "=w,r")
>> + (plus:HI (lt:HI (match_operand:QI 1 "register_operand" "r,r")
>> + (const_int 0))
>> + (match_operand:HI 2 "register_operand" "0,0")))
>> + (clobber (match_scratch:QI 3 "=X,&1"))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "@
>> sbrc %1,7\;adiw %0,1
>> lsl %1\;adc %A0,__zero_reg__\;adc %B0,__zero_reg__"
>> - [(set_attr "length" "2,3")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "length" "2,3")])
>> -(define_insn "*addpsi3.lt0"
>> +(define_insn_and_split "*addpsi3.lt0_split"
>> [(set (match_operand:PSI 0 "register_operand" "=r")
>> (plus:PSI (lshiftrt:PSI (match_operand:PSI 1 "register_operand" "r")
>> (const_int 23))
>> (match_operand:PSI 2 "register_operand" "0")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (plus:PSI (lshiftrt:PSI (match_dup 1)
>> + (const_int 23))
>> + (match_dup 2)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*addpsi3.lt0"
>> + [(set (match_operand:PSI 0 "register_operand" "=r")
>> + (plus:PSI (lshiftrt:PSI (match_operand:PSI 1 "register_operand" "r")
>> + (const_int 23))
>> + (match_operand:PSI 2 "register_operand" "0")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "mov __tmp_reg__,%C1\;lsl __tmp_reg__
>> adc %A0,__zero_reg__\;adc %B0,__zero_reg__\;adc %C0,__zero_reg__"
>> - [(set_attr "length" "5")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "length" "5")])
>> -(define_insn "*addsi3.lt0"
>> +(define_insn_and_split "*addsi3.lt0_split"
>> [(set (match_operand:SI 0 "register_operand" "=r")
>> (plus:SI (lshiftrt:SI (match_operand:SI 1 "register_operand" "r")
>> (const_int 31))
>> (match_operand:SI 2 "register_operand" "0")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (plus:SI (lshiftrt:SI (match_dup 1)
>> + (const_int 31))
>> + (match_dup 2)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*addsi3.lt0"
>> + [(set (match_operand:SI 0 "register_operand" "=r")
>> + (plus:SI (lshiftrt:SI (match_operand:SI 1 "register_operand" "r")
>> + (const_int 31))
>> + (match_operand:SI 2 "register_operand" "0")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "mov __tmp_reg__,%D1\;lsl __tmp_reg__
>> adc %A0,__zero_reg__\;adc %B0,__zero_reg__\;adc %C0,__zero_reg__\;adc %D0,__zero_reg__"
>> - [(set_attr "length" "6")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "length" "6")])
>> -(define_insn "*umulqihi3.call"
>> +(define_insn_and_split "*umulqihi3.call_split"
>> [(set (reg:HI 24)
>> (mult:HI (zero_extend:HI (reg:QI 22))
>> (zero_extend:HI (reg:QI 24))))
>> (clobber (reg:QI 21))
>> (clobber (reg:HI 22))]
>> "!AVR_HAVE_MUL"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:HI 24)
>> + (mult:HI (zero_extend:HI (reg:QI 22))
>> + (zero_extend:HI (reg:QI 24))))
>> + (clobber (reg:QI 21))
>> + (clobber (reg:HI 22))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*umulqihi3.call"
>> + [(set (reg:HI 24)
>> + (mult:HI (zero_extend:HI (reg:QI 22))
>> + (zero_extend:HI (reg:QI 24))))
>> + (clobber (reg:QI 21))
>> + (clobber (reg:HI 22))
>> + (clobber (reg:CC REG_CC))]
>> + "!AVR_HAVE_MUL && reload_completed"
>> "%~call __umulqihi3"
>> - [(set_attr "type" "xcall")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "xcall")])
>
> Same. No need to splitter anything of type "xcall", it's just
> dealing with hard regs.
>
>> ;; "umulqihi3"
>> ;; "mulqihi3"
>> -(define_insn "<extend_u>mulqihi3"
>> +
>> +(define_insn_and_split "<extend_u>mulqihi3_split"
>> [(set (match_operand:HI 0 "register_operand" "=r")
>> (mult:HI (any_extend:HI (match_operand:QI 1 "register_operand" "<mul_r_d>"))
>> (any_extend:HI (match_operand:QI 2 "register_operand" "<mul_r_d>"))))]
>> "AVR_HAVE_MUL"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (mult:HI (any_extend:HI (match_dup 1))
>> + (any_extend:HI (match_dup 2))))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "<extend_u>mulqihi3"
>> + [(set (match_operand:HI 0 "register_operand" "=r")
>> + (mult:HI (any_extend:HI (match_operand:QI 1 "register_operand" "<mul_r_d>"))
>> + (any_extend:HI (match_operand:QI 2 "register_operand" "<mul_r_d>"))))
>> + (clobber (reg:CC REG_CC))]
>> + "AVR_HAVE_MUL && reload_completed"
>> "mul<extend_s> %1,%2
>> movw %0,r0
>> clr __zero_reg__"
>> - [(set_attr "length" "3")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "length" "3")])
>> -(define_insn "usmulqihi3"
>> +(define_insn_and_split "usmulqihi3"
>> [(set (match_operand:HI 0 "register_operand" "=r")
>> (mult:HI (zero_extend:HI (match_operand:QI 1 "register_operand" "a"))
>> (sign_extend:HI (match_operand:QI 2 "register_operand" "a"))))]
>> "AVR_HAVE_MUL"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (mult:HI (zero_extend:HI (match_dup 1))
>> + (sign_extend:HI (match_dup 2))))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*usmulqihi3"
>> + [(set (match_operand:HI 0 "register_operand" "=r")
>> + (mult:HI (zero_extend:HI (match_operand:QI 1 "register_operand" "a"))
>> + (sign_extend:HI (match_operand:QI 2 "register_operand" "a"))))
>> + (clobber (reg:CC REG_CC))]
>> + "AVR_HAVE_MUL && reload_completed"
>> "mulsu %2,%1
>> movw %0,r0
>> clr __zero_reg__"
>> - [(set_attr "length" "3")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "length" "3")])
>> ;; Above insn is not canonicalized by insn combine, so here is a
>> version with
>> ;; operands swapped.
>> -
>> -(define_insn "*sumulqihi3"
>> +(define_insn_and_split "*sumulqihi3_split"
>> [(set (match_operand:HI 0 "register_operand" "=r")
>> (mult:HI (sign_extend:HI (match_operand:QI 1 "register_operand" "a"))
>> (zero_extend:HI (match_operand:QI 2 "register_operand" "a"))))]
>> "AVR_HAVE_MUL"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (mult:HI (sign_extend:HI (match_dup 1))
>> + (zero_extend:HI (match_dup 2))))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*sumulqihi3"
>> + [(set (match_operand:HI 0 "register_operand" "=r")
>> + (mult:HI (sign_extend:HI (match_operand:QI 1 "register_operand" "a"))
>> + (zero_extend:HI (match_operand:QI 2 "register_operand" "a"))))
>> + (clobber (reg:CC REG_CC))]
>> + "AVR_HAVE_MUL && reload_completed"
>> "mulsu %1,%2
>> movw %0,r0
>> clr __zero_reg__"
>> - [(set_attr "length" "3")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "length" "3")])
>> ;; One-extend operand 1
>> -(define_insn "*osmulqihi3"
>> +(define_insn_and_split "*osmulqihi3_split"
>> [(set (match_operand:HI 0 "register_operand" "=&r")
>> (mult:HI (not:HI (zero_extend:HI (not:QI (match_operand:QI 1 "register_operand" "a"))))
>> (sign_extend:HI (match_operand:QI 2 "register_operand" "a"))))]
>> "AVR_HAVE_MUL"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (mult:HI (not:HI (zero_extend:HI (not:QI (match_dup 1))))
>> + (sign_extend:HI (match_dup 2))))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*osmulqihi3"
>> + [(set (match_operand:HI 0 "register_operand" "=&r")
>> + (mult:HI (not:HI (zero_extend:HI (not:QI (match_operand:QI 1 "register_operand" "a"))))
>> + (sign_extend:HI (match_operand:QI 2 "register_operand" "a"))))
>> + (clobber (reg:CC REG_CC))]
>> + "AVR_HAVE_MUL && reload_completed"
>> "mulsu %2,%1
>> movw %0,r0
>> sub %B0,%2
>> clr __zero_reg__"
>> - [(set_attr "length" "4")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "length" "4")])
>> -(define_insn "*oumulqihi3"
>> +(define_insn_and_split "*oumulqihi3_split"
>> [(set (match_operand:HI 0 "register_operand" "=&r")
>> (mult:HI (not:HI (zero_extend:HI (not:QI (match_operand:QI 1 "register_operand" "r"))))
>> (zero_extend:HI (match_operand:QI 2 "register_operand" "r"))))]
>> "AVR_HAVE_MUL"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (mult:HI (not:HI (zero_extend:HI (not:QI (match_dup 1))))
>> + (zero_extend:HI (match_dup 2))))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*oumulqihi3"
>> + [(set (match_operand:HI 0 "register_operand" "=&r")
>> + (mult:HI (not:HI (zero_extend:HI (not:QI (match_operand:QI 1 "register_operand" "r"))))
>> + (zero_extend:HI (match_operand:QI 2 "register_operand" "r"))))
>> + (clobber (reg:CC REG_CC))]
>> + "AVR_HAVE_MUL && reload_completed"
>> "mul %2,%1
>> movw %0,r0
>> sub %B0,%2
>> clr __zero_reg__"
>> - [(set_attr "length" "4")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "length" "4")])
>> ;******************************************************************************
>> ; multiply-add/sub QI: $0 = $3 +/- $1*$2
>> ;******************************************************************************
>> -(define_insn "*maddqi4"
>> +(define_insn_and_split "*maddqi4_split"
>> [(set (match_operand:QI 0 "register_operand" "=r")
>> (plus:QI (mult:QI (match_operand:QI 1 "register_operand" "r")
>> (match_operand:QI 2 "register_operand" "r"))
>> (match_operand:QI 3 "register_operand" "0")))]
>> "AVR_HAVE_MUL"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (plus:QI (mult:QI (match_dup 1)
>> + (match_dup 2))
>> + (match_dup 3)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*maddqi4"
>> + [(set (match_operand:QI 0 "register_operand" "=r")
>> + (plus:QI (mult:QI (match_operand:QI 1 "register_operand" "r")
>> + (match_operand:QI 2 "register_operand" "r"))
>> + (match_operand:QI 3 "register_operand" "0")))
>> + (clobber (reg:CC REG_CC))]
>> + "AVR_HAVE_MUL && reload_completed"
>> "mul %1,%2
>> add %A0,r0
>> clr __zero_reg__"
>> - [(set_attr "length" "4")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "length" "4")])
>> -(define_insn "*msubqi4"
>> +(define_insn_and_split "*msubqi4_split"
>> [(set (match_operand:QI 0 "register_operand" "=r")
>> (minus:QI (match_operand:QI 3 "register_operand" "0")
>> (mult:QI (match_operand:QI 1 "register_operand" "r")
>> (match_operand:QI 2 "register_operand" "r"))))]
>> "AVR_HAVE_MUL"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (minus:QI (match_dup 3)
>> + (mult:QI (match_dup 1)
>> + (match_dup 2))))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*msubqi4"
>> + [(set (match_operand:QI 0 "register_operand" "=r")
>> + (minus:QI (match_operand:QI 3 "register_operand" "0")
>> + (mult:QI (match_operand:QI 1 "register_operand" "r")
>> + (match_operand:QI 2 "register_operand" "r"))))
>> + (clobber (reg:CC REG_CC))]
>> + "AVR_HAVE_MUL && reload_completed"
>> "mul %1,%2
>> sub %A0,r0
>> clr __zero_reg__"
>> - [(set_attr "length" "4")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "length" "4")])
>> (define_insn_and_split "*maddqi4.const"
>> [(set (match_operand:QI 0 "register_operand" "=r")
>> @@ -1821,38 +2582,66 @@
>> ;; "*maddqihi4"
>> ;; "*umaddqihi4"
>> -(define_insn "*<extend_u>maddqihi4"
>> +(define_insn_and_split "*<extend_u>maddqihi4_split"
>> [(set (match_operand:HI 0 "register_operand" "=r")
>> (plus:HI (mult:HI (any_extend:HI (match_operand:QI 1 "register_operand" "<mul_r_d>"))
>> (any_extend:HI (match_operand:QI 2 "register_operand" "<mul_r_d>")))
>> (match_operand:HI 3 "register_operand" "0")))]
>> "AVR_HAVE_MUL"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (plus:HI (mult:HI (any_extend:HI (match_dup 1))
>> + (any_extend:HI (match_dup 2)))
>> + (match_dup 3)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*<extend_u>maddqihi4"
>> + [(set (match_operand:HI 0 "register_operand" "=r")
>> + (plus:HI (mult:HI (any_extend:HI (match_operand:QI 1 "register_operand" "<mul_r_d>"))
>> + (any_extend:HI (match_operand:QI 2 "register_operand" "<mul_r_d>")))
>> + (match_operand:HI 3 "register_operand" "0")))
>> + (clobber (reg:CC REG_CC))]
>> + "AVR_HAVE_MUL && reload_completed"
>> "mul<extend_s> %1,%2
>> add %A0,r0
>> adc %B0,r1
>> clr __zero_reg__"
>> - [(set_attr "length" "4")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "length" "4")])
>> ;; "*msubqihi4"
>> ;; "*umsubqihi4"
>> -(define_insn "*<extend_u>msubqihi4"
>> +(define_insn_and_split "*<extend_u>msubqihi4_split"
>> [(set (match_operand:HI 0 "register_operand" "=r")
>> (minus:HI (match_operand:HI 3 "register_operand" "0")
>> (mult:HI (any_extend:HI (match_operand:QI 1 "register_operand" "<mul_r_d>"))
>> (any_extend:HI (match_operand:QI 2 "register_operand" "<mul_r_d>")))))]
>> "AVR_HAVE_MUL"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (minus:HI (match_dup 3)
>> + (mult:HI (any_extend:HI (match_dup 1))
>> + (any_extend:HI (match_dup 2)))))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*<extend_u>msubqihi4"
>> + [(set (match_operand:HI 0 "register_operand" "=r")
>> + (minus:HI (match_operand:HI 3 "register_operand" "0")
>> + (mult:HI (any_extend:HI (match_operand:QI 1 "register_operand" "<mul_r_d>"))
>> + (any_extend:HI (match_operand:QI 2 "register_operand" "<mul_r_d>")))))
>> + (clobber (reg:CC REG_CC))]
>> + "AVR_HAVE_MUL && reload_completed"
>> "mul<extend_s> %1,%2
>> sub %A0,r0
>> sbc %B0,r1
>> clr __zero_reg__"
>> - [(set_attr "length" "4")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "length" "4")])
>> ;; "*usmaddqihi4"
>> ;; "*sumaddqihi4"
>> -(define_insn "*<any_extend:extend_su><any_extend2:extend_su>msubqihi4"
>> +(define_insn_and_split "*<any_extend:extend_su><any_extend2:extend_su>msubqihi4_split"
>> [(set (match_operand:HI 0 "register_operand" "=r")
>> (plus:HI (mult:HI (any_extend:HI (match_operand:QI 1 "register_operand" "a"))
>> (any_extend2:HI (match_operand:QI 2 "register_operand" "a")))
>> @@ -1860,18 +2649,34 @@
>> "AVR_HAVE_MUL
>> && reload_completed
>> && <any_extend:CODE> != <any_extend2:CODE>"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (plus:HI (mult:HI (any_extend:HI (match_dup 1))
>> + (any_extend2:HI (match_dup 2)))
>> + (match_dup 3)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*<any_extend:extend_su><any_extend2:extend_su>msubqihi4"
>> + [(set (match_operand:HI 0 "register_operand" "=r")
>> + (plus:HI (mult:HI (any_extend:HI (match_operand:QI 1 "register_operand" "a"))
>> + (any_extend2:HI (match_operand:QI 2 "register_operand" "a")))
>> + (match_operand:HI 3 "register_operand" "0")))
>> + (clobber (reg:CC REG_CC))]
>> + "AVR_HAVE_MUL
>> + && reload_completed
>> + && <any_extend:CODE> != <any_extend2:CODE>"
>> {
>> output_asm_insn (<any_extend:CODE> == SIGN_EXTEND
>> ? "mulsu %1,%2" : "mulsu %2,%1", operands);
>> return "add %A0,r0\;adc %B0,r1\;clr __zero_reg__";
>> }
>> - [(set_attr "length" "4")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "length" "4")])
>> ;; "*usmsubqihi4"
>> ;; "*sumsubqihi4"
>> -(define_insn "*<any_extend:extend_su><any_extend2:extend_su>msubqihi4"
>> +(define_insn_and_split "*<any_extend:extend_su><any_extend2:extend_su>msubqihi4_split"
>> [(set (match_operand:HI 0 "register_operand" "=r")
>> (minus:HI (match_operand:HI 3 "register_operand" "0")
>> (mult:HI (any_extend:HI (match_operand:QI 1 "register_operand" "a"))
>> @@ -1879,14 +2684,30 @@
>> "AVR_HAVE_MUL
>> && reload_completed
>> && <any_extend:CODE> != <any_extend2:CODE>"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (minus:HI (match_dup 3)
>> + (mult:HI (any_extend:HI (match_dup 1))
>> + (any_extend2:HI (match_dup 2)))))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*<any_extend:extend_su><any_extend2:extend_su>msubqihi4"
>> + [(set (match_operand:HI 0 "register_operand" "=r")
>> + (minus:HI (match_operand:HI 3 "register_operand" "0")
>> + (mult:HI (any_extend:HI (match_operand:QI 1 "register_operand" "a"))
>> + (any_extend2:HI (match_operand:QI 2 "register_operand" "a")))))
>> + (clobber (reg:CC REG_CC))]
>> + "AVR_HAVE_MUL
>> + && reload_completed
>> + && <any_extend:CODE> != <any_extend2:CODE>"
>> {
>> output_asm_insn (<any_extend:CODE> == SIGN_EXTEND
>> ? "mulsu %1,%2" : "mulsu %2,%1", operands);
>> return "sub %A0,r0\;sbc %B0,r1\;clr __zero_reg__";
>> }
>> - [(set_attr "length" "4")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "length" "4")])
>> ;; Handle small constants
>> @@ -2130,17 +2951,28 @@
>> ;; The EXTEND of $1 only appears in combine, we don't see it in expand so that
>> ;; expand decides to use ASHIFT instead of MUL because ASHIFT costs are cheaper
>> ;; at that time. Fix that.
>> -
>> -(define_insn "*ashiftqihi2.signx.1"
>> +(define_insn_and_split "*ashiftqihi2.signx.1_split"
>> [(set (match_operand:HI 0 "register_operand" "=r,*r")
>> (ashift:HI (sign_extend:HI (match_operand:QI 1 "register_operand" "0,r"))
>> (const_int 1)))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (ashift:HI (sign_extend:HI (match_dup 1))
>> + (const_int 1)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*ashiftqihi2.signx.1"
>> + [(set (match_operand:HI 0 "register_operand" "=r,*r")
>> + (ashift:HI (sign_extend:HI (match_operand:QI 1 "register_operand" "0,r"))
>> + (const_int 1)))
>> + (clobber (reg:CC REG_CC)) ]
>> + "reload_completed"
>> "@
>> lsl %A0\;sbc %B0,%B0
>> mov %A0,%1\;lsl %A0\;sbc %B0,%B0"
>> - [(set_attr "length" "2,3")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "length" "2,3")])
>> (define_insn_and_split "*ashifthi3.signx.const"
>> [(set (match_operand:HI 0 "register_operand" "=r")
>> @@ -2200,47 +3032,83 @@
>> ; mul HI: $1 = sign-/zero-/one-extend, $2 = reg
>> ;******************************************************************************
>> -(define_insn "mulsqihi3"
>> +(define_insn_and_split "mulsqihi3"
>> [(set (match_operand:HI 0 "register_operand" "=&r")
>> (mult:HI (sign_extend:HI (match_operand:QI 1 "register_operand" "a"))
>> (match_operand:HI 2 "register_operand" "a")))]
>> "AVR_HAVE_MUL"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (mult:HI (sign_extend:HI (match_dup 1))
>> + (match_dup 2)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*mulsqihi3"
>> + [(set (match_operand:HI 0 "register_operand" "=&r")
>> + (mult:HI (sign_extend:HI (match_operand:QI 1 "register_operand" "a"))
>> + (match_operand:HI 2 "register_operand" "a")))
>> + (clobber (reg:CC REG_CC))]
>> + "AVR_HAVE_MUL && reload_completed"
>> "mulsu %1,%A2
>> movw %0,r0
>> mul %1,%B2
>> add %B0,r0
>> clr __zero_reg__"
>> - [(set_attr "length" "5")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "length" "5")])
>> -(define_insn "muluqihi3"
>> +(define_insn_and_split "muluqihi3"
>> [(set (match_operand:HI 0 "register_operand" "=&r")
>> (mult:HI (zero_extend:HI (match_operand:QI 1 "register_operand" "r"))
>> (match_operand:HI 2 "register_operand" "r")))]
>> "AVR_HAVE_MUL"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (mult:HI (zero_extend:HI (match_dup 1))
>> + (match_dup 2)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*muluqihi3"
>> + [(set (match_operand:HI 0 "register_operand" "=&r")
>> + (mult:HI (zero_extend:HI (match_operand:QI 1 "register_operand" "r"))
>> + (match_operand:HI 2 "register_operand" "r")))
>> + (clobber (reg:CC REG_CC))]
>> + "AVR_HAVE_MUL && reload_completed"
>> "mul %1,%A2
>> movw %0,r0
>> mul %1,%B2
>> add %B0,r0
>> clr __zero_reg__"
>> - [(set_attr "length" "5")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "length" "5")])
>> ;; one-extend operand 1
>> -(define_insn "muloqihi3"
>> +(define_insn_and_split "muloqihi3"
>> [(set (match_operand:HI 0 "register_operand" "=&r")
>> (mult:HI (not:HI (zero_extend:HI (not:QI (match_operand:QI 1 "register_operand" "r"))))
>> (match_operand:HI 2 "register_operand" "r")))]
>> "AVR_HAVE_MUL"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (mult:HI (not:HI (zero_extend:HI (not:QI (match_dup 1))))
>> + (match_dup 2)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*muloqihi3"
>> + [(set (match_operand:HI 0 "register_operand" "=&r")
>> + (mult:HI (not:HI (zero_extend:HI (not:QI (match_operand:QI 1 "register_operand" "r"))))
>> + (match_operand:HI 2 "register_operand" "r")))
>> + (clobber (reg:CC REG_CC))]
>> + "AVR_HAVE_MUL && reload_completed"
>> "mul %1,%A2
>> movw %0,r0
>> mul %1,%B2
>> add %B0,r0
>> sub %B0,%A2
>> clr __zero_reg__"
>> - [(set_attr "length" "6")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "length" "6")])
>> ;******************************************************************************
>> @@ -2288,18 +3156,30 @@
>> operands[2] = force_reg (HImode, operands[2]);
>> })
>> -(define_insn "*mulhi3_enh"
>> +(define_insn_and_split "*mulhi3_enh_split"
>> [(set (match_operand:HI 0 "register_operand" "=&r")
>> (mult:HI (match_operand:HI 1 "register_operand" "r")
>> (match_operand:HI 2 "register_operand" "r")))]
>> "AVR_HAVE_MUL"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (mult:HI (match_dup 1)
>> + (match_dup 2)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*mulhi3_enh"
>> + [(set (match_operand:HI 0 "register_operand" "=&r")
>> + (mult:HI (match_operand:HI 1 "register_operand" "r")
>> + (match_operand:HI 2 "register_operand" "r")))
>> + (clobber (reg:CC REG_CC))]
>> + "AVR_HAVE_MUL && reload_completed"
>> {
>> return REGNO (operands[1]) == REGNO (operands[2])
>> ? "mul %A1,%A1\;movw %0,r0\;mul %A1,%B1\;add %B0,r0\;add %B0,r0\;clr r1"
>> : "mul %A1,%A2\;movw %0,r0\;mul %A1,%B2\;add %B0,r0\;mul %B1,%A2\;add %B0,r0\;clr r1";
>> }
>> - [(set_attr "length" "7")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "length" "7")])
>> (define_expand "mulhi3_call"
>> [(set (reg:HI 24) (match_operand:HI 1 "register_operand" ""))
>> @@ -2315,14 +3195,26 @@
>> })
>>
>> -(define_insn "*mulhi3_call"
>> +(define_insn_and_split "*mulhi3_call_split"
>> [(set (reg:HI 24) (mult:HI (reg:HI 24) (reg:HI 22)))
>> (clobber (reg:HI 22))
>> (clobber (reg:QI 21))]
>> "!AVR_HAVE_MUL"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:HI 24) (mult:HI (reg:HI 24) (reg:HI 22)))
>> + (clobber (reg:HI 22))
>> + (clobber (reg:QI 21))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*mulhi3_call"
>> + [(set (reg:HI 24) (mult:HI (reg:HI 24) (reg:HI 22)))
>> + (clobber (reg:HI 22))
>> + (clobber (reg:QI 21))
>> + (clobber (reg:CC REG_CC))]
>> + "!AVR_HAVE_MUL && reload_completed"
>> "%~call __mulhi3"
>> - [(set_attr "type" "xcall")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "xcall")])
>
> Same (type "xcall").
>
>> ;; To support widening multiplication with constant we postpone
>> ;; expanding to the implicit library call until post combine and
>> @@ -2643,67 +3535,144 @@
>> avr_fix_inputs (operands, 1 << 2, regmask (HImode, 18));
>> })
>> -
>> -(define_insn "*mulsi3_call"
>> +(define_insn_and_split "*mulsi3_call_split"
>> [(set (reg:SI 22)
>> (mult:SI (reg:SI 22)
>> (reg:SI 18)))
>> (clobber (reg:HI 26))]
>> "AVR_HAVE_MUL"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:SI 22)
>> + (mult:SI (reg:SI 22)
>> + (reg:SI 18)))
>> + (clobber (reg:HI 26))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*mulsi3_call"
>> + [(set (reg:SI 22)
>> + (mult:SI (reg:SI 22)
>> + (reg:SI 18)))
>> + (clobber (reg:HI 26))
>> + (clobber (reg:CC REG_CC))]
>> + "AVR_HAVE_MUL && reload_completed"
>> "%~call __mulsi3"
>> - [(set_attr "type" "xcall")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "xcall")])
>
> Same (type "xcall").
>
>> ;; "*mulhisi3_call"
>> ;; "*umulhisi3_call"
>> -(define_insn "*<extend_u>mulhisi3_call"
>> +(define_insn_and_split "*<extend_u>mulhisi3_call_split"
>> [(set (reg:SI 22)
>> (mult:SI (any_extend:SI (reg:HI 18))
>> (any_extend:SI (reg:HI 26))))]
>> "AVR_HAVE_MUL"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:SI 22)
>> + (mult:SI (any_extend:SI (reg:HI 18))
>> + (any_extend:SI (reg:HI 26))))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*<extend_u>mulhisi3_call"
>> + [(set (reg:SI 22)
>> + (mult:SI (any_extend:SI (reg:HI 18))
>> + (any_extend:SI (reg:HI 26))))
>> + (clobber (reg:CC REG_CC))]
>> + "AVR_HAVE_MUL && reload_completed"
>> "%~call __<extend_u>mulhisi3"
>> - [(set_attr "type" "xcall")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "xcall")])
>
> Same (type "xcall").
>
>> ;; "*umulhi3_highpart_call"
>> ;; "*smulhi3_highpart_call"
>> -(define_insn "*<extend_su>mulhi3_highpart_call"
>> +(define_insn_and_split "*<extend_su>mulhi3_highpart_call_split"
>> [(set (reg:HI 24)
>> (truncate:HI (lshiftrt:SI (mult:SI (any_extend:SI (reg:HI 18))
>> (any_extend:SI (reg:HI 26)))
>> (const_int 16))))
>> (clobber (reg:HI 22))]
>> "AVR_HAVE_MUL"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:HI 24)
>> + (truncate:HI (lshiftrt:SI (mult:SI (any_extend:SI (reg:HI 18))
>> + (any_extend:SI (reg:HI 26)))
>> + (const_int 16))))
>> + (clobber (reg:HI 22))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*<extend_su>mulhi3_highpart_call"
>> + [(set (reg:HI 24)
>> + (truncate:HI (lshiftrt:SI (mult:SI (any_extend:SI (reg:HI 18))
>> + (any_extend:SI (reg:HI 26)))
>> + (const_int 16))))
>> + (clobber (reg:HI 22))
>> + (clobber (reg:CC REG_CC))]
>> + "AVR_HAVE_MUL && reload_completed"
>> "%~call __<extend_u>mulhisi3"
>> - [(set_attr "type" "xcall")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "xcall")])
>
> Same (type "xcall").
>
>> -(define_insn "*usmulhisi3_call"
>> +(define_insn_and_split "*usmulhisi3_call_split"
>> [(set (reg:SI 22)
>> (mult:SI (zero_extend:SI (reg:HI 18))
>> (sign_extend:SI (reg:HI 26))))]
>> "AVR_HAVE_MUL"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:SI 22)
>> + (mult:SI (zero_extend:SI (reg:HI 18))
>> + (sign_extend:SI (reg:HI 26))))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*usmulhisi3_call"
>> + [(set (reg:SI 22)
>> + (mult:SI (zero_extend:SI (reg:HI 18))
>> + (sign_extend:SI (reg:HI 26))))
>> + (clobber (reg:CC REG_CC))]
>> + "AVR_HAVE_MUL && reload_completed"
>> "%~call __usmulhisi3"
>> - [(set_attr "type" "xcall")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "xcall")])
>
> Same (type "xcall").
>
>> -(define_insn "*mul<extend_su>hisi3_call"
>> +(define_insn_and_split "*mul<extend_su>hisi3_call_split"
>> [(set (reg:SI 22)
>> (mult:SI (any_extend:SI (reg:HI 26))
>> (reg:SI 18)))]
>> "AVR_HAVE_MUL"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:SI 22)
>> + (mult:SI (any_extend:SI (reg:HI 26))
>> + (reg:SI 18)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*mul<extend_su>hisi3_call"
>> + [(set (reg:SI 22)
>> + (mult:SI (any_extend:SI (reg:HI 26))
>> + (reg:SI 18)))
>> + (clobber (reg:CC REG_CC))]
>> + "AVR_HAVE_MUL && reload_completed"
>> "%~call __mul<extend_su>hisi3"
>> - [(set_attr "type" "xcall")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "xcall")])
>
> Same (type "xcall").
>
>> -(define_insn "*mulohisi3_call"
>> +(define_insn_and_split "*mulohisi3_call_split"
>> [(set (reg:SI 22)
>> (mult:SI (not:SI (zero_extend:SI (not:HI (reg:HI 26))))
>> (reg:SI 18)))]
>> "AVR_HAVE_MUL"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:SI 22)
>> + (mult:SI (not:SI (zero_extend:SI (not:HI (reg:HI 26))))
>> + (reg:SI 18)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*mulohisi3_call"
>> + [(set (reg:SI 22)
>> + (mult:SI (not:SI (zero_extend:SI (not:HI (reg:HI 26))))
>> + (reg:SI 18)))
>> + (clobber (reg:CC REG_CC))]
>> + "AVR_HAVE_MUL && reload_completed"
>> "%~call __mulohisi3"
>> - [(set_attr "type" "xcall")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "xcall")])
>
> Same (type "xcall").
>
>> ; / % / % / % / % / % / % / % / % / % / % / % / % / % / % / % / %
>> / % / % / %
>> ; divmod
>> @@ -2716,15 +3685,15 @@
>> ;; CSE has problems to operate on hard regs.
>> ;;
>> (define_insn_and_split "divmodqi4"
>> - [(parallel [(set (match_operand:QI 0 "pseudo_register_operand" "")
>> - (div:QI (match_operand:QI 1 "pseudo_register_operand" "")
>> - (match_operand:QI 2 "pseudo_register_operand" "")))
>> - (set (match_operand:QI 3 "pseudo_register_operand" "")
>> - (mod:QI (match_dup 1) (match_dup 2)))
>> - (clobber (reg:QI 22))
>> - (clobber (reg:QI 23))
>> - (clobber (reg:QI 24))
>> - (clobber (reg:QI 25))])]
>> + [(set (match_operand:QI 0 "pseudo_register_operand" "")
>> + (div:QI (match_operand:QI 1 "pseudo_register_operand" "")
>> + (match_operand:QI 2 "pseudo_register_operand" "")))
>> + (set (match_operand:QI 3 "pseudo_register_operand" "")
>> + (mod:QI (match_dup 1) (match_dup 2)))
>> + (clobber (reg:QI 22))
>> + (clobber (reg:QI 23))
>> + (clobber (reg:QI 24))
>> + (clobber (reg:QI 25))]
>> ""
>> "this divmodqi4 pattern should have been splitted;"
>> ""
>> @@ -2737,26 +3706,40 @@
>> (set (match_dup 0) (reg:QI 24))
>> (set (match_dup 3) (reg:QI 25))])
>> -(define_insn "*divmodqi4_call"
>> +(define_insn_and_split "*divmodqi4_call_split"
>> [(set (reg:QI 24) (div:QI (reg:QI 24) (reg:QI 22)))
>> (set (reg:QI 25) (mod:QI (reg:QI 24) (reg:QI 22)))
>> (clobber (reg:QI 22))
>> (clobber (reg:QI 23))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:QI 24) (div:QI (reg:QI 24) (reg:QI 22)))
>> + (set (reg:QI 25) (mod:QI (reg:QI 24) (reg:QI 22)))
>> + (clobber (reg:QI 22))
>> + (clobber (reg:QI 23))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*divmodqi4_call"
>> + [(set (reg:QI 24) (div:QI (reg:QI 24) (reg:QI 22)))
>> + (set (reg:QI 25) (mod:QI (reg:QI 24) (reg:QI 22)))
>> + (clobber (reg:QI 22))
>> + (clobber (reg:QI 23))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "%~call __divmodqi4"
>> - [(set_attr "type" "xcall")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "xcall")])
>
> Same (type "xcall").
>
>> (define_insn_and_split "udivmodqi4"
>> - [(parallel [(set (match_operand:QI 0 "pseudo_register_operand" "")
>> - (udiv:QI (match_operand:QI 1 "pseudo_register_operand" "")
>> - (match_operand:QI 2 "pseudo_register_operand" "")))
>> - (set (match_operand:QI 3 "pseudo_register_operand" "")
>> - (umod:QI (match_dup 1) (match_dup 2)))
>> - (clobber (reg:QI 22))
>> - (clobber (reg:QI 23))
>> - (clobber (reg:QI 24))
>> - (clobber (reg:QI 25))])]
>> + [(set (match_operand:QI 0 "pseudo_register_operand" "")
>> + (udiv:QI (match_operand:QI 1 "pseudo_register_operand" "")
>> + (match_operand:QI 2 "pseudo_register_operand" "")))
>> + (set (match_operand:QI 3 "pseudo_register_operand" "")
>> + (umod:QI (match_dup 1) (match_dup 2)))
>> + (clobber (reg:QI 22))
>> + (clobber (reg:QI 23))
>> + (clobber (reg:QI 24))
>> + (clobber (reg:QI 25))]
>> ""
>> "this udivmodqi4 pattern should have been splitted;"
>> ""
>> @@ -2768,25 +3751,37 @@
>> (set (match_dup 0) (reg:QI 24))
>> (set (match_dup 3) (reg:QI 25))])
>> -(define_insn "*udivmodqi4_call"
>> +(define_insn_and_split "*udivmodqi4_call_split"
>> [(set (reg:QI 24) (udiv:QI (reg:QI 24) (reg:QI 22)))
>> (set (reg:QI 25) (umod:QI (reg:QI 24) (reg:QI 22)))
>> (clobber (reg:QI 23))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:QI 24) (udiv:QI (reg:QI 24) (reg:QI 22)))
>> + (set (reg:QI 25) (umod:QI (reg:QI 24) (reg:QI 22)))
>> + (clobber (reg:QI 23))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*udivmodqi4_call"
>> + [(set (reg:QI 24) (udiv:QI (reg:QI 24) (reg:QI 22)))
>> + (set (reg:QI 25) (umod:QI (reg:QI 24) (reg:QI 22)))
>> + (clobber (reg:QI 23))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "%~call __udivmodqi4"
>> - [(set_attr "type" "xcall")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "xcall")])
>
> Same (type "xcall").
>
>> (define_insn_and_split "divmodhi4"
>> - [(parallel [(set (match_operand:HI 0 "pseudo_register_operand" "")
>> - (div:HI (match_operand:HI 1 "pseudo_register_operand" "")
>> - (match_operand:HI 2 "pseudo_register_operand" "")))
>> - (set (match_operand:HI 3 "pseudo_register_operand" "")
>> - (mod:HI (match_dup 1) (match_dup 2)))
>> - (clobber (reg:QI 21))
>> - (clobber (reg:HI 22))
>> - (clobber (reg:HI 24))
>> - (clobber (reg:HI 26))])]
>> + [(set (match_operand:HI 0 "pseudo_register_operand" "")
>> + (div:HI (match_operand:HI 1 "pseudo_register_operand" "")
>> + (match_operand:HI 2 "pseudo_register_operand" "")))
>> + (set (match_operand:HI 3 "pseudo_register_operand" "")
>> + (mod:HI (match_dup 1) (match_dup 2)))
>> + (clobber (reg:QI 21))
>> + (clobber (reg:HI 22))
>> + (clobber (reg:HI 24))
>> + (clobber (reg:HI 26))]
>> ""
>> "this should have been splitted;"
>> ""
>> @@ -2799,26 +3794,40 @@
>> (set (match_dup 0) (reg:HI 22))
>> (set (match_dup 3) (reg:HI 24))])
>> -(define_insn "*divmodhi4_call"
>> +(define_insn_and_split "*divmodhi4_call_split"
>> [(set (reg:HI 22) (div:HI (reg:HI 24) (reg:HI 22)))
>> (set (reg:HI 24) (mod:HI (reg:HI 24) (reg:HI 22)))
>> (clobber (reg:HI 26))
>> (clobber (reg:QI 21))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:HI 22) (div:HI (reg:HI 24) (reg:HI 22)))
>> + (set (reg:HI 24) (mod:HI (reg:HI 24) (reg:HI 22)))
>> + (clobber (reg:HI 26))
>> + (clobber (reg:QI 21))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*divmodhi4_call"
>> + [(set (reg:HI 22) (div:HI (reg:HI 24) (reg:HI 22)))
>> + (set (reg:HI 24) (mod:HI (reg:HI 24) (reg:HI 22)))
>> + (clobber (reg:HI 26))
>> + (clobber (reg:QI 21))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "%~call __divmodhi4"
>> - [(set_attr "type" "xcall")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "xcall")])
>
> Same (type "xcall").
>
>> (define_insn_and_split "udivmodhi4"
>> - [(parallel [(set (match_operand:HI 0 "pseudo_register_operand" "")
>> - (udiv:HI (match_operand:HI 1 "pseudo_register_operand" "")
>> - (match_operand:HI 2 "pseudo_register_operand" "")))
>> - (set (match_operand:HI 3 "pseudo_register_operand" "")
>> - (umod:HI (match_dup 1) (match_dup 2)))
>> - (clobber (reg:QI 21))
>> - (clobber (reg:HI 22))
>> - (clobber (reg:HI 24))
>> - (clobber (reg:HI 26))])]
>> + [(set (match_operand:HI 0 "pseudo_register_operand" "")
>> + (udiv:HI (match_operand:HI 1 "pseudo_register_operand" "")
>> + (match_operand:HI 2 "pseudo_register_operand" "")))
>> + (set (match_operand:HI 3 "pseudo_register_operand" "")
>> + (umod:HI (match_dup 1) (match_dup 2)))
>> + (clobber (reg:QI 21))
>> + (clobber (reg:HI 22))
>> + (clobber (reg:HI 24))
>> + (clobber (reg:HI 26))]
>> ""
>> "this udivmodhi4 pattern should have been splitted.;"
>> ""
>> @@ -2831,15 +3840,30 @@
>> (set (match_dup 0) (reg:HI 22))
>> (set (match_dup 3) (reg:HI 24))])
>> -(define_insn "*udivmodhi4_call"
>> +(define_insn_and_split "*udivmodhi4_call_split"
>> [(set (reg:HI 22) (udiv:HI (reg:HI 24) (reg:HI 22)))
>> (set (reg:HI 24) (umod:HI (reg:HI 24) (reg:HI 22)))
>> (clobber (reg:HI 26))
>> (clobber (reg:QI 21))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:HI 22) (udiv:HI (reg:HI 24) (reg:HI 22)))
>> + (set (reg:HI 24) (umod:HI (reg:HI 24) (reg:HI 22)))
>> + (clobber (reg:HI 26))
>> + (clobber (reg:QI 21))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*udivmodhi4_call"
>> + [(set (reg:HI 22) (udiv:HI (reg:HI 24) (reg:HI 22)))
>> + (set (reg:HI 24) (umod:HI (reg:HI 24) (reg:HI 22)))
>> + (clobber (reg:HI 26))
>> + (clobber (reg:QI 21))
>> + (clobber (reg:CC REG_CC))
>> + ]
>> + "reload_completed"
>> "%~call __udivmodhi4"
>> - [(set_attr "type" "xcall")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "xcall")])
>
> Same (type "xcall").
>
>> ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
>> ;; 24-bit multiply
>> @@ -2870,11 +3894,24 @@
>> DONE;
>> })
>> -(define_insn "*umulqihipsi3"
>> +(define_insn_and_split "*umulqihipsi3_split"
>> [(set (match_operand:PSI 0 "register_operand" "=&r")
>> (mult:PSI (zero_extend:PSI (match_operand:QI 1 "register_operand" "r"))
>> (zero_extend:PSI (match_operand:HI 2 "register_operand" "r"))))]
>> "AVR_HAVE_MUL"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (mult:PSI (zero_extend:PSI (match_dup 1))
>> + (zero_extend:PSI (match_dup 2))))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*umulqihipsi3"
>> + [(set (match_operand:PSI 0 "register_operand" "=&r")
>> + (mult:PSI (zero_extend:PSI (match_operand:QI 1 "register_operand" "r"))
>> + (zero_extend:PSI (match_operand:HI 2 "register_operand" "r"))))
>> + (clobber (reg:CC REG_CC))]
>> + "AVR_HAVE_MUL && reload_completed"
>> "mul %1,%A2
>> movw %A0,r0
>> mul %1,%B2
>> @@ -2882,14 +3919,26 @@
>> add %B0,r0
>> adc %C0,r1
>> clr __zero_reg__"
>> - [(set_attr "length" "7")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "length" "7")])
>> -(define_insn "*umulhiqipsi3"
>> +(define_insn_and_split "*umulhiqipsi3_split"
>> [(set (match_operand:PSI 0 "register_operand" "=&r")
>> (mult:PSI (zero_extend:PSI (match_operand:HI 2 "register_operand" "r"))
>> (zero_extend:PSI (match_operand:QI 1 "register_operand" "r"))))]
>> "AVR_HAVE_MUL"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (mult:PSI (zero_extend:PSI (match_dup 2))
>> + (zero_extend:PSI (match_dup 1))))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*umulhiqipsi3"
>> + [(set (match_operand:PSI 0 "register_operand" "=&r")
>> + (mult:PSI (zero_extend:PSI (match_operand:HI 2 "register_operand" "r"))
>> + (zero_extend:PSI (match_operand:QI 1 "register_operand" "r"))))
>> + (clobber (reg:CC REG_CC))]
>> + "AVR_HAVE_MUL && reload_completed"
>> "mul %1,%A2
>> movw %A0,r0
>> mul %1,%B2
>> @@ -2897,8 +3946,7 @@
>> mov %C0,r1
>> clr __zero_reg__
>> adc %C0,__zero_reg__"
>> - [(set_attr "length" "7")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "length" "7")])
>> (define_expand "mulsqipsi3"
>> [(parallel [(set (match_operand:PSI 0 "pseudo_register_operand" "")
>> @@ -2963,16 +4011,28 @@
>> }
>> })
>> -(define_insn "*mulsqipsi3.libgcc"
>> +(define_insn_and_split "*mulsqipsi3.libgcc_split"
>> [(set (reg:PSI 18)
>> (mult:PSI (sign_extend:PSI (reg:QI 25))
>> (reg:PSI 22)))]
>> "AVR_HAVE_MUL"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:PSI 18)
>> + (mult:PSI (sign_extend:PSI (reg:QI 25))
>> + (reg:PSI 22)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*mulsqipsi3.libgcc"
>> + [(set (reg:PSI 18)
>> + (mult:PSI (sign_extend:PSI (reg:QI 25))
>> + (reg:PSI 22)))
>> + (clobber (reg:CC REG_CC))]
>> + "AVR_HAVE_MUL && reload_completed"
>> "%~call __mulsqipsi3"
>> - [(set_attr "type" "xcall")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "xcall")])
>
> Same (type "xcall").
>
>> -(define_insn "*mulpsi3.libgcc"
>> +(define_insn_and_split "*mulpsi3.libgcc_split"
>> [(set (reg:PSI 22)
>> (mult:PSI (reg:PSI 22)
>> (reg:PSI 18)))
>> @@ -2980,9 +4040,27 @@
>> (clobber (reg:QI 25))
>> (clobber (reg:HI 26))]
>> "AVR_HAVE_MUL"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:PSI 22)
>> + (mult:PSI (reg:PSI 22)
>> + (reg:PSI 18)))
>> + (clobber (reg:QI 21))
>> + (clobber (reg:QI 25))
>> + (clobber (reg:HI 26))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*mulpsi3.libgcc"
>> + [(set (reg:PSI 22)
>> + (mult:PSI (reg:PSI 22)
>> + (reg:PSI 18)))
>> + (clobber (reg:QI 21))
>> + (clobber (reg:QI 25))
>> + (clobber (reg:HI 26))
>> + (clobber (reg:CC REG_CC))]
>> + "AVR_HAVE_MUL && reload_completed"
>> "%~call __mulpsi3"
>> - [(set_attr "type" "xcall")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "xcall")])
>
> Same (type "xcall").
>
>>
>> ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
>> @@ -3013,16 +4091,32 @@
>> (set (match_dup 0) (reg:PSI 22))
>> (set (match_dup 3) (reg:PSI 18))])
>> -(define_insn "*divmodpsi4_call"
>> +(define_insn_and_split "*divmodpsi4_call_split"
>> [(set (reg:PSI 22) (div:PSI (reg:PSI 22) (reg:PSI 18)))
>> (set (reg:PSI 18) (mod:PSI (reg:PSI 22) (reg:PSI 18)))
>> (clobber (reg:QI 21))
>> (clobber (reg:QI 25))
>> (clobber (reg:QI 26))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:PSI 22) (div:PSI (reg:PSI 22) (reg:PSI 18)))
>> + (set (reg:PSI 18) (mod:PSI (reg:PSI 22) (reg:PSI 18)))
>> + (clobber (reg:QI 21))
>> + (clobber (reg:QI 25))
>> + (clobber (reg:QI 26))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*divmodpsi4_call"
>> + [(set (reg:PSI 22) (div:PSI (reg:PSI 22) (reg:PSI 18)))
>> + (set (reg:PSI 18) (mod:PSI (reg:PSI 22) (reg:PSI 18)))
>> + (clobber (reg:QI 21))
>> + (clobber (reg:QI 25))
>> + (clobber (reg:QI 26))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "%~call __divmodpsi4"
>> - [(set_attr "type" "xcall")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "xcall")])
>
> Same (type "xcall").
>
>> (define_insn_and_split "udivmodpsi4"
>> [(parallel [(set (match_operand:PSI 0 "pseudo_register_operand" "")
>> @@ -3046,16 +4140,32 @@
>> (set (match_dup 0) (reg:PSI 22))
>> (set (match_dup 3) (reg:PSI 18))])
>> -(define_insn "*udivmodpsi4_call"
>> +(define_insn_and_split "*udivmodpsi4_call_split"
>> [(set (reg:PSI 22) (udiv:PSI (reg:PSI 22) (reg:PSI 18)))
>> (set (reg:PSI 18) (umod:PSI (reg:PSI 22) (reg:PSI 18)))
>> (clobber (reg:QI 21))
>> (clobber (reg:QI 25))
>> (clobber (reg:QI 26))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:PSI 22) (udiv:PSI (reg:PSI 22) (reg:PSI 18)))
>> + (set (reg:PSI 18) (umod:PSI (reg:PSI 22) (reg:PSI 18)))
>> + (clobber (reg:QI 21))
>> + (clobber (reg:QI 25))
>> + (clobber (reg:QI 26))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*udivmodpsi4_call"
>> + [(set (reg:PSI 22) (udiv:PSI (reg:PSI 22) (reg:PSI 18)))
>> + (set (reg:PSI 18) (umod:PSI (reg:PSI 22) (reg:PSI 18)))
>> + (clobber (reg:QI 21))
>> + (clobber (reg:QI 25))
>> + (clobber (reg:QI 26))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "%~call __udivmodpsi4"
>> - [(set_attr "type" "xcall")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "xcall")])
>
> Same (type "xcall").
>
>> ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
>> @@ -3081,15 +4191,29 @@
>> (set (match_dup 0) (reg:SI 18))
>> (set (match_dup 3) (reg:SI 22))])
>> -(define_insn "*divmodsi4_call"
>> +(define_insn_and_split "*divmodsi4_call_split"
>> [(set (reg:SI 18) (div:SI (reg:SI 22) (reg:SI 18)))
>> (set (reg:SI 22) (mod:SI (reg:SI 22) (reg:SI 18)))
>> (clobber (reg:HI 26))
>> (clobber (reg:HI 30))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:SI 18) (div:SI (reg:SI 22) (reg:SI 18)))
>> + (set (reg:SI 22) (mod:SI (reg:SI 22) (reg:SI 18)))
>> + (clobber (reg:HI 26))
>> + (clobber (reg:HI 30))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*divmodsi4_call"
>> + [(set (reg:SI 18) (div:SI (reg:SI 22) (reg:SI 18)))
>> + (set (reg:SI 22) (mod:SI (reg:SI 22) (reg:SI 18)))
>> + (clobber (reg:HI 26))
>> + (clobber (reg:HI 30))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "%~call __divmodsi4"
>> - [(set_attr "type" "xcall")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "xcall")])
>
> Same (type "xcall").
>
>> (define_insn_and_split "udivmodsi4"
>> [(parallel [(set (match_operand:SI 0 "pseudo_register_operand" "")
>> @@ -3113,37 +4237,78 @@
>> (set (match_dup 0) (reg:SI 18))
>> (set (match_dup 3) (reg:SI 22))])
>> -(define_insn "*udivmodsi4_call"
>> +(define_insn_and_split "*udivmodsi4_call_split"
>> [(set (reg:SI 18) (udiv:SI (reg:SI 22) (reg:SI 18)))
>> (set (reg:SI 22) (umod:SI (reg:SI 22) (reg:SI 18)))
>> (clobber (reg:HI 26))
>> (clobber (reg:HI 30))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:SI 18) (udiv:SI (reg:SI 22) (reg:SI 18)))
>> + (set (reg:SI 22) (umod:SI (reg:SI 22) (reg:SI 18)))
>> + (clobber (reg:HI 26))
>> + (clobber (reg:HI 30))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*udivmodsi4_call"
>> + [(set (reg:SI 18) (udiv:SI (reg:SI 22) (reg:SI 18)))
>> + (set (reg:SI 22) (umod:SI (reg:SI 22) (reg:SI 18)))
>> + (clobber (reg:HI 26))
>> + (clobber (reg:HI 30))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "%~call __udivmodsi4"
>> - [(set_attr "type" "xcall")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "xcall")])
>
> Same (type "xcall").
>
>> ;&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
>> ; and
>> -(define_insn "andqi3"
>> +(define_insn_and_split "andqi3"
>> [(set (match_operand:QI 0 "register_operand" "=??r,d,*l")
>> (and:QI (match_operand:QI 1 "register_operand" "%0,0,0")
>> (match_operand:QI 2 "nonmemory_operand" "r,i,Ca1")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (and:QI (match_dup 1)
>> + (match_dup 2)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*andqi3"
>> + [(set (match_operand:QI 0 "register_operand" "=??r,d,*l")
>> + (and:QI (match_operand:QI 1 "register_operand" "%0,0,0")
>> + (match_operand:QI 2 "nonmemory_operand" "r,i,Ca1")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "@
>> and %0,%2
>> andi %0,lo8(%2)
>> * return avr_out_bitop (insn, operands, NULL);"
>> - [(set_attr "length" "1,1,2")
>> - (set_attr "cc" "set_zn,set_zn,none")])
>> + [(set_attr "length" "1,1,2")])
>> -(define_insn "andhi3"
>> +(define_insn_and_split "andhi3"
>> [(set (match_operand:HI 0 "register_operand" "=??r,d,d,r ,r")
>> (and:HI (match_operand:HI 1 "register_operand" "%0,0,0,0 ,0")
>> (match_operand:HI 2 "nonmemory_operand" "r,s,n,Ca2,n")))
>> (clobber (match_scratch:QI 3 "=X,X,X,X ,&d"))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (and:HI (match_dup 1)
>> + (match_dup 2)))
>> + (clobber (match_dup 3))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*andhi3"
>> + [(set (match_operand:HI 0 "register_operand" "=??r,d,d,r ,r")
>> + (and:HI (match_operand:HI 1 "register_operand" "%0,0,0,0 ,0")
>> + (match_operand:HI 2 "nonmemory_operand" "r,s,n,Ca2,n")))
>> + (clobber (match_scratch:QI 3 "=X,X,X,X ,&d"))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> if (which_alternative == 0)
>> return "and %A0,%A2\;and %B0,%B2";
>> @@ -3153,15 +4318,29 @@
>> return avr_out_bitop (insn, operands, NULL);
>> }
>> [(set_attr "length" "2,2,2,4,4")
>> - (set_attr "adjust_len" "*,*,out_bitop,out_bitop,out_bitop")
>> - (set_attr "cc" "set_n,set_n,clobber,clobber,clobber")])
>> + (set_attr "adjust_len" "*,*,out_bitop,out_bitop,out_bitop")])
>> -(define_insn "andpsi3"
>> +(define_insn_and_split "andpsi3"
>> [(set (match_operand:PSI 0 "register_operand" "=??r,d,r ,r")
>> (and:PSI (match_operand:PSI 1 "register_operand" "%0,0,0 ,0")
>> (match_operand:PSI 2 "nonmemory_operand" "r,n,Ca3,n")))
>> (clobber (match_scratch:QI 3 "=X,X,X ,&d"))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (and:PSI (match_dup 1)
>> + (match_dup 2)))
>> + (clobber (match_dup 3))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*andpsi3"
>> + [(set (match_operand:PSI 0 "register_operand" "=??r,d,r ,r")
>> + (and:PSI (match_operand:PSI 1 "register_operand" "%0,0,0 ,0")
>> + (match_operand:PSI 2 "nonmemory_operand" "r,n,Ca3,n")))
>> + (clobber (match_scratch:QI 3 "=X,X,X ,&d"))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> if (which_alternative == 0)
>> return "and %A0,%A2" CR_TAB
>> @@ -3171,15 +4350,29 @@
>> return avr_out_bitop (insn, operands, NULL);
>> }
>> [(set_attr "length" "3,3,6,6")
>> - (set_attr "adjust_len" "*,out_bitop,out_bitop,out_bitop")
>> - (set_attr "cc" "set_n,clobber,clobber,clobber")])
>> + (set_attr "adjust_len" "*,out_bitop,out_bitop,out_bitop")])
>> -(define_insn "andsi3"
>> +(define_insn_and_split "andsi3"
>> [(set (match_operand:SI 0 "register_operand" "=??r,d,r ,r")
>> (and:SI (match_operand:SI 1 "register_operand" "%0,0,0 ,0")
>> (match_operand:SI 2 "nonmemory_operand" "r,n,Ca4,n")))
>> (clobber (match_scratch:QI 3 "=X,X,X ,&d"))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (and:SI (match_dup 1)
>> + (match_dup 2)))
>> + (clobber (match_dup 3))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*andsi3"
>> + [(set (match_operand:SI 0 "register_operand" "=??r,d,r ,r")
>> + (and:SI (match_operand:SI 1 "register_operand" "%0,0,0 ,0")
>> + (match_operand:SI 2 "nonmemory_operand" "r,n,Ca4,n")))
>> + (clobber (match_scratch:QI 3 "=X,X,X ,&d"))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> if (which_alternative == 0)
>> return "and %0,%2" CR_TAB
>> @@ -3190,8 +4383,7 @@
>> return avr_out_bitop (insn, operands, NULL);
>> }
>> [(set_attr "length" "4,4,8,8")
>> - (set_attr "adjust_len" "*,out_bitop,out_bitop,out_bitop")
>> - (set_attr "cc" "set_n,clobber,clobber,clobber")])
>> + (set_attr "adjust_len" "*,out_bitop,out_bitop,out_bitop")])
>> (define_peephole2 ; andi
>> [(set (match_operand:QI 0 "d_register_operand" "")
>> @@ -3209,24 +4401,51 @@
>> ;;|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
>> ;; ior
>> -(define_insn "iorqi3"
>> +(define_insn_and_split "iorqi3"
>> + [(set (match_operand:QI 0 "register_operand" "=??r,d,*l")
>> + (ior:QI (match_operand:QI 1 "register_operand" "%0,0,0")
>> + (match_operand:QI 2 "nonmemory_operand" "r,i,Co1")))]
>> + ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (ior:QI (match_dup 1)
>> + (match_dup 2)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*iorqi3"
>> [(set (match_operand:QI 0 "register_operand" "=??r,d,*l")
>> (ior:QI (match_operand:QI 1 "register_operand" "%0,0,0")
>> - (match_operand:QI 2 "nonmemory_operand" "r,i,Co1")))]
>> - ""
>> + (match_operand:QI 2 "nonmemory_operand" "r,i,Co1")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "@
>> or %0,%2
>> ori %0,lo8(%2)
>> * return avr_out_bitop (insn, operands, NULL);"
>> - [(set_attr "length" "1,1,2")
>> - (set_attr "cc" "set_zn,set_zn,none")])
>> + [(set_attr "length" "1,1,2")])
>> -(define_insn "iorhi3"
>> +(define_insn_and_split "iorhi3"
>> [(set (match_operand:HI 0 "register_operand" "=??r,d,d,r ,r")
>> (ior:HI (match_operand:HI 1 "register_operand" "%0,0,0,0 ,0")
>> (match_operand:HI 2 "nonmemory_operand" "r,s,n,Co2,n")))
>> (clobber (match_scratch:QI 3 "=X,X,X,X ,&d"))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (ior:HI (match_dup 1)
>> + (match_dup 2)))
>> + (clobber (match_dup 3))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*iorhi3"
>> + [(set (match_operand:HI 0 "register_operand" "=??r,d,d,r ,r")
>> + (ior:HI (match_operand:HI 1 "register_operand" "%0,0,0,0 ,0")
>> + (match_operand:HI 2 "nonmemory_operand" "r,s,n,Co2,n")))
>> + (clobber (match_scratch:QI 3 "=X,X,X,X ,&d"))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> if (which_alternative == 0)
>> return "or %A0,%A2\;or %B0,%B2";
>> @@ -3236,15 +4455,29 @@
>> return avr_out_bitop (insn, operands, NULL);
>> }
>> [(set_attr "length" "2,2,2,4,4")
>> - (set_attr "adjust_len" "*,*,out_bitop,out_bitop,out_bitop")
>> - (set_attr "cc" "set_n,set_n,clobber,clobber,clobber")])
>> + (set_attr "adjust_len" "*,*,out_bitop,out_bitop,out_bitop")])
>> -(define_insn "iorpsi3"
>> +(define_insn_and_split "iorpsi3"
>> [(set (match_operand:PSI 0 "register_operand" "=??r,d,r ,r")
>> (ior:PSI (match_operand:PSI 1 "register_operand" "%0,0,0 ,0")
>> (match_operand:PSI 2 "nonmemory_operand" "r,n,Co3,n")))
>> (clobber (match_scratch:QI 3 "=X,X,X ,&d"))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (ior:PSI (match_dup 1)
>> + (match_dup 2)))
>> + (clobber (match_dup 3))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*iorpsi3"
>> + [(set (match_operand:PSI 0 "register_operand" "=??r,d,r ,r")
>> + (ior:PSI (match_operand:PSI 1 "register_operand" "%0,0,0 ,0")
>> + (match_operand:PSI 2 "nonmemory_operand" "r,n,Co3,n")))
>> + (clobber (match_scratch:QI 3 "=X,X,X ,&d"))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> if (which_alternative == 0)
>> return "or %A0,%A2" CR_TAB
>> @@ -3254,15 +4487,29 @@
>> return avr_out_bitop (insn, operands, NULL);
>> }
>> [(set_attr "length" "3,3,6,6")
>> - (set_attr "adjust_len" "*,out_bitop,out_bitop,out_bitop")
>> - (set_attr "cc" "set_n,clobber,clobber,clobber")])
>> + (set_attr "adjust_len" "*,out_bitop,out_bitop,out_bitop")])
>> -(define_insn "iorsi3"
>> +(define_insn_and_split "iorsi3"
>> [(set (match_operand:SI 0 "register_operand" "=??r,d,r ,r")
>> (ior:SI (match_operand:SI 1 "register_operand" "%0,0,0 ,0")
>> (match_operand:SI 2 "nonmemory_operand" "r,n,Co4,n")))
>> (clobber (match_scratch:QI 3 "=X,X,X ,&d"))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (ior:SI (match_dup 1)
>> + (match_dup 2)))
>> + (clobber (match_dup 3))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*iorsi3"
>> + [(set (match_operand:SI 0 "register_operand" "=??r,d,r ,r")
>> + (ior:SI (match_operand:SI 1 "register_operand" "%0,0,0 ,0")
>> + (match_operand:SI 2 "nonmemory_operand" "r,n,Co4,n")))
>> + (clobber (match_scratch:QI 3 "=X,X,X ,&d"))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> if (which_alternative == 0)
>> return "or %0,%2" CR_TAB
>> @@ -3273,27 +4520,53 @@
>> return avr_out_bitop (insn, operands, NULL);
>> }
>> [(set_attr "length" "4,4,8,8")
>> - (set_attr "adjust_len" "*,out_bitop,out_bitop,out_bitop")
>> - (set_attr "cc" "set_n,clobber,clobber,clobber")])
>> + (set_attr "adjust_len" "*,out_bitop,out_bitop,out_bitop")])
>> ;;^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>> ;; xor
>> -(define_insn "xorqi3"
>> +(define_insn_and_split "xorqi3"
>> [(set (match_operand:QI 0 "register_operand" "=r")
>> (xor:QI (match_operand:QI 1 "register_operand" "%0")
>> (match_operand:QI 2 "register_operand" "r")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (xor:QI (match_dup 1)
>> + (match_dup 2)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*xorqi3"
>> + [(set (match_operand:QI 0 "register_operand" "=r")
>> + (xor:QI (match_operand:QI 1 "register_operand" "%0")
>> + (match_operand:QI 2 "register_operand" "r")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "eor %0,%2"
>> - [(set_attr "length" "1")
>> - (set_attr "cc" "set_zn")])
>> + [(set_attr "length" "1")])
>> -(define_insn "xorhi3"
>> +(define_insn_and_split "xorhi3"
>> [(set (match_operand:HI 0 "register_operand" "=??r,r ,r")
>> (xor:HI (match_operand:HI 1 "register_operand" "%0,0 ,0")
>> (match_operand:HI 2 "nonmemory_operand" "r,Cx2,n")))
>> (clobber (match_scratch:QI 3 "=X,X ,&d"))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (xor:HI (match_dup 1)
>> + (match_dup 2)))
>> + (clobber (match_dup 3))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*xorhi3"
>> + [(set (match_operand:HI 0 "register_operand" "=??r,r ,r")
>> + (xor:HI (match_operand:HI 1 "register_operand" "%0,0 ,0")
>> + (match_operand:HI 2 "nonmemory_operand" "r,Cx2,n")))
>> + (clobber (match_scratch:QI 3 "=X,X ,&d"))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> if (which_alternative == 0)
>> return "eor %A0,%A2\;eor %B0,%B2";
>> @@ -3301,15 +4574,29 @@
>> return avr_out_bitop (insn, operands, NULL);
>> }
>> [(set_attr "length" "2,2,4")
>> - (set_attr "adjust_len" "*,out_bitop,out_bitop")
>> - (set_attr "cc" "set_n,clobber,clobber")])
>> + (set_attr "adjust_len" "*,out_bitop,out_bitop")])
>> -(define_insn "xorpsi3"
>> +(define_insn_and_split "xorpsi3"
>> [(set (match_operand:PSI 0 "register_operand" "=??r,r ,r")
>> (xor:PSI (match_operand:PSI 1 "register_operand" "%0,0 ,0")
>> (match_operand:PSI 2 "nonmemory_operand" "r,Cx3,n")))
>> (clobber (match_scratch:QI 3 "=X,X ,&d"))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (xor:PSI (match_dup 1)
>> + (match_dup 2)))
>> + (clobber (match_dup 3))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*xorpsi3"
>> + [(set (match_operand:PSI 0 "register_operand" "=??r,r ,r")
>> + (xor:PSI (match_operand:PSI 1 "register_operand" "%0,0 ,0")
>> + (match_operand:PSI 2 "nonmemory_operand" "r,Cx3,n")))
>> + (clobber (match_scratch:QI 3 "=X,X ,&d"))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> if (which_alternative == 0)
>> return "eor %A0,%A2" CR_TAB
>> @@ -3319,15 +4606,29 @@
>> return avr_out_bitop (insn, operands, NULL);
>> }
>> [(set_attr "length" "3,6,6")
>> - (set_attr "adjust_len" "*,out_bitop,out_bitop")
>> - (set_attr "cc" "set_n,clobber,clobber")])
>> + (set_attr "adjust_len" "*,out_bitop,out_bitop")])
>> -(define_insn "xorsi3"
>> +(define_insn_and_split "xorsi3"
>> [(set (match_operand:SI 0 "register_operand" "=??r,r ,r")
>> (xor:SI (match_operand:SI 1 "register_operand" "%0,0 ,0")
>> (match_operand:SI 2 "nonmemory_operand" "r,Cx4,n")))
>> (clobber (match_scratch:QI 3 "=X,X ,&d"))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (xor:SI (match_dup 1)
>> + (match_dup 2)))
>> + (clobber (match_dup 3))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*xorsi3"
>> + [(set (match_operand:SI 0 "register_operand" "=??r,r ,r")
>> + (xor:SI (match_operand:SI 1 "register_operand" "%0,0 ,0")
>> + (match_operand:SI 2 "nonmemory_operand" "r,Cx4,n")))
>> + (clobber (match_scratch:QI 3 "=X,X ,&d"))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> if (which_alternative == 0)
>> return "eor %0,%2" CR_TAB
>> @@ -3338,8 +4639,7 @@
>> return avr_out_bitop (insn, operands, NULL);
>> }
>> [(set_attr "length" "4,8,8")
>> - (set_attr "adjust_len" "*,out_bitop,out_bitop")
>> - (set_attr "cc" "set_n,clobber,clobber")])
>> + (set_attr "adjust_len" "*,out_bitop,out_bitop")])
>>
>> (define_split
>> @@ -3424,11 +4724,24 @@
>> (rotate:QI (match_operand:QI 1 "register_operand" "")
>> (const_int 4)))])
>> -(define_insn "*rotlqi3"
>> +(define_insn_and_split "*rotlqi3_split"
>> [(set (match_operand:QI 0 "register_operand" "=r,r,r ,r ,r ,r ,r ,r")
>> (rotate:QI (match_operand:QI 1 "register_operand" "0,0,0 ,0 ,0 ,0 ,0 ,0")
>> (match_operand:QI 2 "const_0_to_7_operand" "P,K,C03,C04,C05,C06,C07,L")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (rotate:QI (match_dup 1)
>> + (match_dup 2)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*rotlqi3"
>> + [(set (match_operand:QI 0 "register_operand" "=r,r,r ,r ,r ,r ,r ,r")
>> + (rotate:QI (match_operand:QI 1 "register_operand" "0,0,0 ,0 ,0 ,0 ,0 ,0")
>> + (match_operand:QI 2 "const_0_to_7_operand" "P,K,C03,C04,C05,C06,C07,L")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "@
>> lsl %0\;adc %0,__zero_reg__
>> lsl %0\;adc %0,__zero_reg__\;lsl %0\;adc %0,__zero_reg__
>> @@ -3438,8 +4751,7 @@
>> swap %0\;lsl %0\;adc %0,__zero_reg__\;lsl %0\;adc %0,__zero_reg__
>> bst %0,0\;ror %0\;bld %0,7
>> " ; empty
>> - [(set_attr "length" "2,4,4,1,3,5,3,0")
>> - (set_attr "cc" "set_n,set_n,clobber,none,set_n,set_n,clobber,none")])
>> + [(set_attr "length" "2,4,4,1,3,5,3,0")])
>> ;; Split all rotates of HI,SI and PSImode registers where rotation
>> is by
>> ;; a whole number of bytes. The split creates the appropriate moves and
>> @@ -3487,59 +4799,131 @@
>> FAIL;
>> })
>> -(define_insn "*rotlhi2.1"
>> +(define_insn_and_split "*rotlhi2.1_split"
>> [(set (match_operand:HI 0 "register_operand" "=r")
>> (rotate:HI (match_operand:HI 1 "register_operand" "0")
>> (const_int 1)))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (rotate:HI (match_dup 1)
>> + (const_int 1)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*rotlhi2.1"
>> + [(set (match_operand:HI 0 "register_operand" "=r")
>> + (rotate:HI (match_operand:HI 1 "register_operand" "0")
>> + (const_int 1)))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "lsl %A0\;rol %B0\;adc %A0,__zero_reg__"
>> - [(set_attr "length" "3")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "length" "3")])
>> -(define_insn "*rotlhi2.15"
>> +(define_insn_and_split "*rotlhi2.15_split"
>> [(set (match_operand:HI 0 "register_operand" "=r")
>> (rotate:HI (match_operand:HI 1 "register_operand" "0")
>> (const_int 15)))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (rotate:HI (match_dup 1)
>> + (const_int 15)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*rotlhi2.15"
>> + [(set (match_operand:HI 0 "register_operand" "=r")
>> + (rotate:HI (match_operand:HI 1 "register_operand" "0")
>> + (const_int 15)))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "bst %A0,0\;ror %B0\;ror %A0\;bld %B0,7"
>> - [(set_attr "length" "4")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "length" "4")])
>> -(define_insn "*rotlpsi2.1"
>> +(define_insn_and_split "*rotlpsi2.1_split"
>> [(set (match_operand:PSI 0 "register_operand" "=r")
>> (rotate:PSI (match_operand:PSI 1 "register_operand" "0")
>> (const_int 1)))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (rotate:PSI (match_dup 1)
>> + (const_int 1)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*rotlpsi2.1"
>> + [(set (match_operand:PSI 0 "register_operand" "=r")
>> + (rotate:PSI (match_operand:PSI 1 "register_operand" "0")
>> + (const_int 1)))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "lsl %A0\;rol %B0\;rol %C0\;adc %A0,__zero_reg__"
>> - [(set_attr "length" "4")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "length" "4")])
>> -(define_insn "*rotlpsi2.23"
>> +(define_insn_and_split "*rotlpsi2.23_split"
>> [(set (match_operand:PSI 0 "register_operand" "=r")
>> (rotate:PSI (match_operand:PSI 1 "register_operand" "0")
>> (const_int 23)))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (rotate:PSI (match_dup 1)
>> + (const_int 23)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*rotlpsi2.23"
>> + [(set (match_operand:PSI 0 "register_operand" "=r")
>> + (rotate:PSI (match_operand:PSI 1 "register_operand" "0")
>> + (const_int 23)))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "bst %A0,0\;ror %C0\;ror %B0\;ror %A0\;bld %C0,7"
>> - [(set_attr "length" "5")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "length" "5")])
>> -(define_insn "*rotlsi2.1"
>> +(define_insn_and_split "*rotlsi2.1_split"
>> [(set (match_operand:SI 0 "register_operand" "=r")
>> (rotate:SI (match_operand:SI 1 "register_operand" "0")
>> (const_int 1)))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (rotate:SI (match_dup 1)
>> + (const_int 1)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*rotlsi2.1"
>> + [(set (match_operand:SI 0 "register_operand" "=r")
>> + (rotate:SI (match_operand:SI 1 "register_operand" "0")
>> + (const_int 1)))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "lsl %A0\;rol %B0\;rol %C0\;rol %D0\;adc %A0,__zero_reg__"
>> - [(set_attr "length" "5")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "length" "5")])
>> -(define_insn "*rotlsi2.31"
>> +(define_insn_and_split "*rotlsi2.31_split"
>> [(set (match_operand:SI 0 "register_operand" "=r")
>> (rotate:SI (match_operand:SI 1 "register_operand" "0")
>> (const_int 31)))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (rotate:SI (match_dup 1)
>> + (const_int 31)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*rotlsi2.31"
>> + [(set (match_operand:SI 0 "register_operand" "=r")
>> + (rotate:SI (match_operand:SI 1 "register_operand" "0")
>> + (const_int 31)))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "bst %A0,0\;ror %D0\;ror %C0\;ror %B0\;ror %A0\;bld %D0,7"
>> - [(set_attr "length" "6")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "length" "6")])
>> ;; Overlapping non-HImode registers often (but not always) need a
>> scratch.
>> ;; The best we can do is use early clobber alternative "#&r" so that
>> @@ -3644,29 +5028,53 @@
>> ;; "*ashlqi3"
>> ;; "*ashlqq3" "*ashluqq3"
>> -(define_insn "*ashl<mode>3"
>> +(define_insn_and_split "*ashl<mode>3_split"
>> [(set (match_operand:ALL1 0 "register_operand" "=r,r,r,r,!d,r,r")
>> (ashift:ALL1 (match_operand:ALL1 1 "register_operand" "0,0,0,0,0 ,0,0")
>> (match_operand:QI 2 "nop_general_operand" "r,L,P,K,n ,n,Qm")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (ashift:ALL1 (match_dup 1)
>> + (match_dup 2)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*ashl<mode>3"
>> + [(set (match_operand:ALL1 0 "register_operand" "=r,r,r,r,!d,r,r")
>> + (ashift:ALL1 (match_operand:ALL1 1 "register_operand" "0,0,0,0,0 ,0,0")
>> + (match_operand:QI 2 "nop_general_operand" "r,L,P,K,n ,n,Qm")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> - return ashlqi3_out (insn, operands, NULL);
>> + return ashlqi3_out (insn, operands, 3, NULL);
>> }
>> [(set_attr "length" "5,0,1,2,4,6,9")
>> - (set_attr "adjust_len" "ashlqi")
>> - (set_attr "cc" "clobber,none,set_czn,set_czn,set_czn,set_czn,clobber")])
>> + (set_attr "adjust_len" "ashlqi")])
>> -(define_insn "ashl<mode>3"
>> +(define_insn_and_split "ashl<mode>3"
>> [(set (match_operand:ALL2 0 "register_operand" "=r,r,r,r,r,r,r")
>> (ashift:ALL2 (match_operand:ALL2 1 "register_operand" "0,0,0,r,0,0,0")
>> (match_operand:QI 2 "nop_general_operand" "r,L,P,O,K,n,Qm")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (ashift:ALL2 (match_dup 1)
>> + (match_dup 2)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*ashl<mode>3"
>> + [(set (match_operand:ALL2 0 "register_operand" "=r,r,r,r,r,r,r")
>> + (ashift:ALL2 (match_operand:ALL2 1 "register_operand" "0,0,0,r,0,0,0")
>> + (match_operand:QI 2 "nop_general_operand" "r,L,P,O,K,n,Qm")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> - return ashlhi3_out (insn, operands, NULL);
>> + return ashlhi3_out (insn, operands, 3, NULL);
>> }
>> [(set_attr "length" "6,0,2,2,4,10,10")
>> - (set_attr "adjust_len" "ashlhi")
>> - (set_attr "cc" "clobber,none,set_n,clobber,set_n,clobber,clobber")])
>> + (set_attr "adjust_len" "ashlhi")])
>>
>> ;; Insns like the following are generated when (implicitly) extending 8-bit shifts
>> @@ -3752,17 +5160,29 @@
>> ;; "ashlsi3"
>> ;; "ashlsq3" "ashlusq3"
>> ;; "ashlsa3" "ashlusa3"
>> -(define_insn "ashl<mode>3"
>> +(define_insn_and_split "ashl<mode>3"
>> [(set (match_operand:ALL4 0 "register_operand" "=r,r,r,r,r,r,r")
>> (ashift:ALL4 (match_operand:ALL4 1 "register_operand" "0,0,0,r,0,0,0")
>> (match_operand:QI 2 "nop_general_operand" "r,L,P,O,K,n,Qm")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (ashift:ALL4 (match_dup 1)
>> + (match_dup 2)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*ashl<mode>3"
>> + [(set (match_operand:ALL4 0 "register_operand" "=r,r,r,r,r,r,r")
>> + (ashift:ALL4 (match_operand:ALL4 1 "register_operand" "0,0,0,r,0,0,0")
>> + (match_operand:QI 2 "nop_general_operand" "r,L,P,O,K,n,Qm")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> - return ashlsi3_out (insn, operands, NULL);
>> + return ashlsi3_out (insn, operands, 3, NULL);
>> }
>> [(set_attr "length" "8,0,4,4,8,10,12")
>> - (set_attr "adjust_len" "ashlsi")
>> - (set_attr "cc" "clobber,none,set_n,clobber,set_n,clobber,clobber")])
>> + (set_attr "adjust_len" "ashlsi")])
>> ;; Optimize if a scratch register from LD_REGS happens to be
>> available.
>> @@ -3821,18 +5241,32 @@
>> ;; "*ashlhi3_const"
>> ;; "*ashlhq3_const" "*ashluhq3_const"
>> ;; "*ashlha3_const" "*ashluha3_const"
>> -(define_insn "*ashl<mode>3_const"
>> +(define_insn_and_split "*ashl<mode>3_const_split"
>> [(set (match_operand:ALL2 0 "register_operand" "=r,r,r,r,r")
>> (ashift:ALL2 (match_operand:ALL2 1 "register_operand" "0,0,r,0,0")
>> (match_operand:QI 2 "const_int_operand" "L,P,O,K,n")))
>> (clobber (match_scratch:QI 3 "=X,X,X,X,&d"))]
>> "reload_completed"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (ashift:ALL2 (match_dup 1)
>> + (match_dup 2)))
>> + (clobber (match_dup 3))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*ashl<mode>3_const"
>> + [(set (match_operand:ALL2 0 "register_operand" "=r,r,r,r,r")
>> + (ashift:ALL2 (match_operand:ALL2 1 "register_operand" "0,0,r,0,0")
>> + (match_operand:QI 2 "const_int_operand" "L,P,O,K,n")))
>> + (clobber (match_scratch:QI 3 "=X,X,X,X,&d"))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> - return ashlhi3_out (insn, operands, NULL);
>> + return ashlhi3_out (insn, operands, 4, NULL);
>> }
>> [(set_attr "length" "0,2,2,4,10")
>> - (set_attr "adjust_len" "ashlhi")
>> - (set_attr "cc" "none,set_n,clobber,set_n,clobber")])
>> + (set_attr "adjust_len" "ashlhi")])
>> (define_peephole2
>> [(match_scratch:QI 3 "d")
>> @@ -3848,18 +5282,32 @@
>> ;; "*ashlsi3_const"
>> ;; "*ashlsq3_const" "*ashlusq3_const"
>> ;; "*ashlsa3_const" "*ashlusa3_const"
>> -(define_insn "*ashl<mode>3_const"
>> +(define_insn_and_split "*ashl<mode>3_const_split"
>> [(set (match_operand:ALL4 0 "register_operand" "=r,r,r,r")
>> (ashift:ALL4 (match_operand:ALL4 1 "register_operand" "0,0,r,0")
>> (match_operand:QI 2 "const_int_operand" "L,P,O,n")))
>> (clobber (match_scratch:QI 3 "=X,X,X,&d"))]
>> "reload_completed"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (ashift:ALL4 (match_dup 1)
>> + (match_dup 2)))
>> + (clobber (match_dup 3))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*ashl<mode>3_const"
>> + [(set (match_operand:ALL4 0 "register_operand" "=r,r,r,r")
>> + (ashift:ALL4 (match_operand:ALL4 1 "register_operand" "0,0,r,0")
>> + (match_operand:QI 2 "const_int_operand" "L,P,O,n")))
>> + (clobber (match_scratch:QI 3 "=X,X,X,&d"))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> - return ashlsi3_out (insn, operands, NULL);
>> + return ashlsi3_out (insn, operands, 4, NULL);
>> }
>> [(set_attr "length" "0,4,4,10")
>> - (set_attr "adjust_len" "ashlsi")
>> - (set_attr "cc" "none,set_n,clobber,clobber")])
>> + (set_attr "adjust_len" "ashlsi")])
>> (define_expand "ashlpsi3"
>> [(parallel [(set (match_operand:PSI 0 "register_operand" "")
>> @@ -3888,76 +5336,140 @@
>> }
>> })
>> -(define_insn "*ashlpsi3"
>> +(define_insn_and_split "*ashlpsi3_split"
>> [(set (match_operand:PSI 0 "register_operand" "=r,r,r,r")
>> (ashift:PSI (match_operand:PSI 1 "register_operand" "0,0,r,0")
>> (match_operand:QI 2 "nonmemory_operand" "r,P,O,n")))
>> (clobber (match_scratch:QI 3 "=X,X,X,&d"))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (ashift:PSI (match_dup 1)
>> + (match_dup 2)))
>> + (clobber (match_dup 3))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*ashlpsi3"
>> + [(set (match_operand:PSI 0 "register_operand" "=r,r,r,r")
>> + (ashift:PSI (match_operand:PSI 1 "register_operand" "0,0,r,0")
>> + (match_operand:QI 2 "nonmemory_operand" "r,P,O,n")))
>> + (clobber (match_scratch:QI 3 "=X,X,X,&d"))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> - return avr_out_ashlpsi3 (insn, operands, NULL);
>> + return avr_out_ashlpsi3 (insn, operands, 4, NULL);
>> }
>> - [(set_attr "adjust_len" "ashlpsi")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "adjust_len" "ashlpsi")])
>> ;; >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >>
>> >> >> >> >>
>> ;; arithmetic shift right
>> ;; "ashrqi3"
>> ;; "ashrqq3" "ashruqq3"
>> -(define_insn "ashr<mode>3"
>> +(define_insn_and_split "ashr<mode>3"
>> [(set (match_operand:ALL1 0 "register_operand" "=r,r,r,r,r ,r ,r")
>> (ashiftrt:ALL1 (match_operand:ALL1 1 "register_operand" "0,0,0,0,0 ,0 ,0")
>> (match_operand:QI 2 "nop_general_operand" "r,L,P,K,C03 C04 C05,C06 C07,Qm")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (ashiftrt:ALL1 (match_dup 1)
>> + (match_dup 2)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*ashr<mode>3"
>> + [(set (match_operand:ALL1 0 "register_operand" "=r,r,r,r,r ,r ,r")
>> + (ashiftrt:ALL1 (match_operand:ALL1 1 "register_operand" "0,0,0,0,0 ,0 ,0")
>> + (match_operand:QI 2 "nop_general_operand" "r,L,P,K,C03 C04 C05,C06 C07,Qm")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> - return ashrqi3_out (insn, operands, NULL);
>> + return ashrqi3_out (insn, operands, 3, NULL);
>> }
>> [(set_attr "length" "5,0,1,2,5,4,9")
>> - (set_attr "adjust_len" "ashrqi")
>> - (set_attr "cc" "clobber,none,set_czn,set_czn,set_czn,clobber,clobber")])
>> + (set_attr "adjust_len" "ashrqi")])
>> ;; "ashrhi3"
>> ;; "ashrhq3" "ashruhq3"
>> ;; "ashrha3" "ashruha3"
>> -(define_insn "ashr<mode>3"
>> +(define_insn_and_split "ashr<mode>3"
>> [(set (match_operand:ALL2 0 "register_operand" "=r,r,r,r,r,r,r")
>> (ashiftrt:ALL2 (match_operand:ALL2 1 "register_operand" "0,0,0,r,0,0,0")
>> (match_operand:QI 2 "nop_general_operand" "r,L,P,O,K,n,Qm")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_operand:ALL2 0 "register_operand" "=r,r,r,r,r,r,r")
>> + (ashiftrt:ALL2 (match_operand:ALL2 1 "register_operand" "0,0,0,r,0,0,0")
>> + (match_operand:QI 2 "nop_general_operand" "r,L,P,O,K,n,Qm")))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*ashr<mode>3"
>> + [(set (match_operand:ALL2 0 "register_operand" "=r,r,r,r,r,r,r")
>> + (ashiftrt:ALL2 (match_operand:ALL2 1 "register_operand" "0,0,0,r,0,0,0")
>> + (match_operand:QI 2 "nop_general_operand" "r,L,P,O,K,n,Qm")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> - return ashrhi3_out (insn, operands, NULL);
>> + return ashrhi3_out (insn, operands, 2, NULL);
>> }
>> [(set_attr "length" "6,0,2,4,4,10,10")
>> - (set_attr "adjust_len" "ashrhi")
>> - (set_attr "cc" "clobber,none,clobber,set_n,clobber,clobber,clobber")])
>> + (set_attr "adjust_len" "ashrhi")])
>> -(define_insn "ashrpsi3"
>> +(define_insn_and_split "ashrpsi3"
>> [(set (match_operand:PSI 0 "register_operand" "=r,r,r,r,r")
>> (ashiftrt:PSI (match_operand:PSI 1 "register_operand" "0,0,0,r,0")
>> (match_operand:QI 2 "nonmemory_operand" "r,P,K,O,n")))
>> (clobber (match_scratch:QI 3 "=X,X,X,X,&d"))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (ashiftrt:PSI (match_dup 1)
>> + (match_dup 2)))
>> + (clobber (match_dup 3))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*ashrpsi3"
>> + [(set (match_operand:PSI 0 "register_operand" "=r,r,r,r,r")
>> + (ashiftrt:PSI (match_operand:PSI 1 "register_operand" "0,0,0,r,0")
>> + (match_operand:QI 2 "nonmemory_operand" "r,P,K,O,n")))
>> + (clobber (match_scratch:QI 3 "=X,X,X,X,&d"))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> - return avr_out_ashrpsi3 (insn, operands, NULL);
>> + return avr_out_ashrpsi3 (insn, operands, 4, NULL);
>> }
>> - [(set_attr "adjust_len" "ashrpsi")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "adjust_len" "ashrpsi")])
>> ;; "ashrsi3"
>> ;; "ashrsq3" "ashrusq3"
>> ;; "ashrsa3" "ashrusa3"
>> -(define_insn "ashr<mode>3"
>> +(define_insn_and_split "ashr<mode>3"
>> [(set (match_operand:ALL4 0 "register_operand" "=r,r,r,r,r,r,r")
>> (ashiftrt:ALL4 (match_operand:ALL4 1 "register_operand" "0,0,0,r,0,0,0")
>> (match_operand:QI 2 "nop_general_operand" "r,L,P,O,K,n,Qm")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (ashiftrt:ALL4 (match_dup 1)
>> + (match_dup 2)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*ashr<mode>3"
>> + [(set (match_operand:ALL4 0 "register_operand" "=r,r,r,r,r,r,r")
>> + (ashiftrt:ALL4 (match_operand:ALL4 1 "register_operand" "0,0,0,r,0,0,0")
>> + (match_operand:QI 2 "nop_general_operand" "r,L,P,O,K,n,Qm")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> - return ashrsi3_out (insn, operands, NULL);
>> + return ashrsi3_out (insn, operands, 3, NULL);
>> }
>> [(set_attr "length" "8,0,4,6,8,10,12")
>> - (set_attr "adjust_len" "ashrsi")
>> - (set_attr "cc" "clobber,none,clobber,set_n,clobber,clobber,clobber")])
>> + (set_attr "adjust_len" "ashrsi")])
>> ;; Optimize if a scratch register from LD_REGS happens to be
>> available.
>> @@ -3975,18 +5487,32 @@
>> ;; "*ashrhi3_const"
>> ;; "*ashrhq3_const" "*ashruhq3_const"
>> ;; "*ashrha3_const" "*ashruha3_const"
>> -(define_insn "*ashr<mode>3_const"
>> +(define_insn_and_split "*ashr<mode>3_const_split"
>> [(set (match_operand:ALL2 0 "register_operand" "=r,r,r,r,r")
>> (ashiftrt:ALL2 (match_operand:ALL2 1 "register_operand" "0,0,r,0,0")
>> (match_operand:QI 2 "const_int_operand" "L,P,O,K,n")))
>> (clobber (match_scratch:QI 3 "=X,X,X,X,&d"))]
>> "reload_completed"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (ashiftrt:ALL2 (match_dup 1)
>> + (match_dup 2)))
>> + (clobber (match_dup 3))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*ashr<mode>3_const"
>> + [(set (match_operand:ALL2 0 "register_operand" "=r,r,r,r,r")
>> + (ashiftrt:ALL2 (match_operand:ALL2 1 "register_operand" "0,0,r,0,0")
>> + (match_operand:QI 2 "const_int_operand" "L,P,O,K,n")))
>> + (clobber (match_scratch:QI 3 "=X,X,X,X,&d"))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> - return ashrhi3_out (insn, operands, NULL);
>> + return ashrhi3_out (insn, operands, 3, NULL);
>> }
>> [(set_attr "length" "0,2,4,4,10")
>> - (set_attr "adjust_len" "ashrhi")
>> - (set_attr "cc" "none,clobber,set_n,clobber,clobber")])
>> + (set_attr "adjust_len" "ashrhi")])
>> (define_peephole2
>> [(match_scratch:QI 3 "d")
>> @@ -4002,18 +5528,32 @@
>> ;; "*ashrsi3_const"
>> ;; "*ashrsq3_const" "*ashrusq3_const"
>> ;; "*ashrsa3_const" "*ashrusa3_const"
>> -(define_insn "*ashr<mode>3_const"
>> +(define_insn_and_split "*ashr<mode>3_const_split"
>> [(set (match_operand:ALL4 0 "register_operand" "=r,r,r,r")
>> (ashiftrt:ALL4 (match_operand:ALL4 1 "register_operand" "0,0,r,0")
>> (match_operand:QI 2 "const_int_operand" "L,P,O,n")))
>> (clobber (match_scratch:QI 3 "=X,X,X,&d"))]
>> "reload_completed"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (ashiftrt:ALL4 (match_dup 1)
>> + (match_dup 2)))
>> + (clobber (match_dup 3))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*ashr<mode>3_const"
>> + [(set (match_operand:ALL4 0 "register_operand" "=r,r,r,r")
>> + (ashiftrt:ALL4 (match_operand:ALL4 1 "register_operand" "0,0,r,0")
>> + (match_operand:QI 2 "const_int_operand" "L,P,O,n")))
>> + (clobber (match_scratch:QI 3 "=X,X,X,&d"))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> - return ashrsi3_out (insn, operands, NULL);
>> + return ashrsi3_out (insn, operands, 4, NULL);
>> }
>> [(set_attr "length" "0,4,4,10")
>> - (set_attr "adjust_len" "ashrsi")
>> - (set_attr "cc" "none,clobber,set_n,clobber")])
>> + (set_attr "adjust_len" "ashrsi")])
>> ;; >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >>
>> >> >> >> >>
>> ;; logical shift right
>> @@ -4067,59 +5607,109 @@
>> ;; "*lshrqi3"
>> ;; "*lshrqq3"
>> ;; "*lshruqq3"
>> -(define_insn "*lshr<mode>3"
>> +(define_insn_and_split "*lshr<mode>3_split"
>> [(set (match_operand:ALL1 0 "register_operand" "=r,r,r,r,!d,r,r")
>> (lshiftrt:ALL1 (match_operand:ALL1 1 "register_operand" "0,0,0,0,0 ,0,0")
>> (match_operand:QI 2 "nop_general_operand" "r,L,P,K,n ,n,Qm")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (lshiftrt:ALL1 (match_dup 1)
>> + (match_dup 2)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*lshr<mode>3"
>> + [(set (match_operand:ALL1 0 "register_operand" "=r,r,r,r,!d,r,r")
>> + (lshiftrt:ALL1 (match_operand:ALL1 1 "register_operand" "0,0,0,0,0 ,0,0")
>> + (match_operand:QI 2 "nop_general_operand" "r,L,P,K,n ,n,Qm")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> - return lshrqi3_out (insn, operands, NULL);
>> + return lshrqi3_out (insn, operands, 3, NULL);
>> }
>> [(set_attr "length" "5,0,1,2,4,6,9")
>> - (set_attr "adjust_len" "lshrqi")
>> - (set_attr "cc" "clobber,none,set_czn,set_czn,set_czn,set_czn,clobber")])
>> + (set_attr "adjust_len" "lshrqi")])
>> ;; "lshrhi3"
>> ;; "lshrhq3" "lshruhq3"
>> ;; "lshrha3" "lshruha3"
>> -(define_insn "lshr<mode>3"
>> +(define_insn_and_split "lshr<mode>3"
>> [(set (match_operand:ALL2 0 "register_operand" "=r,r,r,r,r,r,r")
>> (lshiftrt:ALL2 (match_operand:ALL2 1 "register_operand" "0,0,0,r,0,0,0")
>> (match_operand:QI 2 "nop_general_operand" "r,L,P,O,K,n,Qm")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (lshiftrt:ALL2 (match_dup 1)
>> + (match_dup 2)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*lshr<mode>3"
>> + [(set (match_operand:ALL2 0 "register_operand" "=r,r,r,r,r,r,r")
>> + (lshiftrt:ALL2 (match_operand:ALL2 1 "register_operand" "0,0,0,r,0,0,0")
>> + (match_operand:QI 2 "nop_general_operand" "r,L,P,O,K,n,Qm")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> - return lshrhi3_out (insn, operands, NULL);
>> + return lshrhi3_out (insn, operands, 3, NULL);
>> }
>> [(set_attr "length" "6,0,2,2,4,10,10")
>> - (set_attr "adjust_len" "lshrhi")
>> - (set_attr "cc" "clobber,none,clobber,clobber,clobber,clobber,clobber")])
>> + (set_attr "adjust_len" "lshrhi")])
>> -(define_insn "lshrpsi3"
>> +(define_insn_and_split "lshrpsi3"
>> [(set (match_operand:PSI 0 "register_operand" "=r,r,r,r,r")
>> (lshiftrt:PSI (match_operand:PSI 1 "register_operand" "0,0,r,0,0")
>> (match_operand:QI 2 "nonmemory_operand" "r,P,O,K,n")))
>> (clobber (match_scratch:QI 3 "=X,X,X,X,&d"))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (lshiftrt:PSI (match_dup 1)
>> + (match_dup 2)))
>> + (clobber (match_dup 3))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*lshrpsi3"
>> + [(set (match_operand:PSI 0 "register_operand" "=r,r,r,r,r")
>> + (lshiftrt:PSI (match_operand:PSI 1 "register_operand" "0,0,r,0,0")
>> + (match_operand:QI 2 "nonmemory_operand" "r,P,O,K,n")))
>> + (clobber (match_scratch:QI 3 "=X,X,X,X,&d"))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> - return avr_out_lshrpsi3 (insn, operands, NULL);
>> + return avr_out_lshrpsi3 (insn, operands, 4, NULL);
>> }
>> - [(set_attr "adjust_len" "lshrpsi")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "adjust_len" "lshrpsi")])
>> ;; "lshrsi3"
>> ;; "lshrsq3" "lshrusq3"
>> ;; "lshrsa3" "lshrusa3"
>> -(define_insn "lshr<mode>3"
>> +(define_insn_and_split "lshr<mode>3"
>> [(set (match_operand:ALL4 0 "register_operand" "=r,r,r,r,r,r,r")
>> (lshiftrt:ALL4 (match_operand:ALL4 1 "register_operand" "0,0,0,r,0,0,0")
>> (match_operand:QI 2 "nop_general_operand" "r,L,P,O,K,n,Qm")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (lshiftrt:ALL4 (match_dup 1)
>> + (match_dup 2)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*lshr<mode>3"
>> + [(set (match_operand:ALL4 0 "register_operand" "=r,r,r,r,r,r,r")
>> + (lshiftrt:ALL4 (match_operand:ALL4 1 "register_operand" "0,0,0,r,0,0,0")
>> + (match_operand:QI 2 "nop_general_operand" "r,L,P,O,K,n,Qm")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> - return lshrsi3_out (insn, operands, NULL);
>> + return lshrsi3_out (insn, operands, 3, NULL);
>> }
>> [(set_attr "length" "8,0,4,4,8,10,12")
>> - (set_attr "adjust_len" "lshrsi")
>> - (set_attr "cc" "clobber,none,clobber,clobber,clobber,clobber,clobber")])
>> + (set_attr "adjust_len" "lshrsi")])
>> ;; Optimize if a scratch register from LD_REGS happens to be
>> available.
>> @@ -4178,18 +5768,32 @@
>> ;; "*lshrhi3_const"
>> ;; "*lshrhq3_const" "*lshruhq3_const"
>> ;; "*lshrha3_const" "*lshruha3_const"
>> -(define_insn "*lshr<mode>3_const"
>> +(define_insn_and_split "*lshr<mode>3_const_split"
>> [(set (match_operand:ALL2 0 "register_operand" "=r,r,r,r,r")
>> (lshiftrt:ALL2 (match_operand:ALL2 1 "register_operand" "0,0,r,0,0")
>> (match_operand:QI 2 "const_int_operand" "L,P,O,K,n")))
>> (clobber (match_scratch:QI 3 "=X,X,X,X,&d"))]
>> "reload_completed"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (lshiftrt:ALL2 (match_dup 1)
>> + (match_dup 2)))
>> + (clobber (match_dup 3))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*lshr<mode>3_const"
>> + [(set (match_operand:ALL2 0 "register_operand" "=r,r,r,r,r")
>> + (lshiftrt:ALL2 (match_operand:ALL2 1 "register_operand" "0,0,r,0,0")
>> + (match_operand:QI 2 "const_int_operand" "L,P,O,K,n")))
>> + (clobber (match_scratch:QI 3 "=X,X,X,X,&d"))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> - return lshrhi3_out (insn, operands, NULL);
>> + return lshrhi3_out (insn, operands, 4, NULL);
>> }
>> [(set_attr "length" "0,2,2,4,10")
>> - (set_attr "adjust_len" "lshrhi")
>> - (set_attr "cc" "none,clobber,clobber,clobber,clobber")])
>> + (set_attr "adjust_len" "lshrhi")])
>> (define_peephole2
>> [(match_scratch:QI 3 "d")
>> @@ -4205,143 +5809,277 @@
>> ;; "*lshrsi3_const"
>> ;; "*lshrsq3_const" "*lshrusq3_const"
>> ;; "*lshrsa3_const" "*lshrusa3_const"
>> -(define_insn "*lshr<mode>3_const"
>> +(define_insn_and_split "*lshr<mode>3_const_split"
>> [(set (match_operand:ALL4 0 "register_operand" "=r,r,r,r")
>> (lshiftrt:ALL4 (match_operand:ALL4 1 "register_operand" "0,0,r,0")
>> (match_operand:QI 2 "const_int_operand" "L,P,O,n")))
>> (clobber (match_scratch:QI 3 "=X,X,X,&d"))]
>> "reload_completed"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (lshiftrt:ALL4 (match_dup 1)
>> + (match_dup 2)))
>> + (clobber (match_dup 3))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*lshr<mode>3_const"
>> + [(set (match_operand:ALL4 0 "register_operand" "=r,r,r,r")
>> + (lshiftrt:ALL4 (match_operand:ALL4 1 "register_operand" "0,0,r,0")
>> + (match_operand:QI 2 "const_int_operand" "L,P,O,n")))
>> + (clobber (match_scratch:QI 3 "=X,X,X,&d"))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> - return lshrsi3_out (insn, operands, NULL);
>> + return lshrsi3_out (insn, operands, 4, NULL);
>> }
>> [(set_attr "length" "0,4,4,10")
>> - (set_attr "adjust_len" "lshrsi")
>> - (set_attr "cc" "none,clobber,clobber,clobber")])
>> + (set_attr "adjust_len" "lshrsi")])
>> ;; abs(x) abs(x) abs(x) abs(x) abs(x) abs(x) abs(x) abs(x) abs(x)
>> abs(x) abs(x)
>> ;; abs
>> -(define_insn "absqi2"
>> +(define_insn_and_split "absqi2"
>> [(set (match_operand:QI 0 "register_operand" "=r")
>> (abs:QI (match_operand:QI 1 "register_operand" "0")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (abs:QI (match_dup 1)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*absqi2"
>> + [(set (match_operand:QI 0 "register_operand" "=r")
>> + (abs:QI (match_operand:QI 1 "register_operand" "0")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "sbrc %0,7
>> neg %0"
>> - [(set_attr "length" "2")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "length" "2")])
>>
>> -(define_insn "abssf2"
>> +(define_insn_and_split "abssf2"
>> [(set (match_operand:SF 0 "register_operand" "=d,r")
>> (abs:SF (match_operand:SF 1 "register_operand" "0,0")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (abs:SF (match_dup 1)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*abssf2"
>> + [(set (match_operand:SF 0 "register_operand" "=d,r")
>> + (abs:SF (match_operand:SF 1 "register_operand" "0,0")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "@
>> andi %D0,0x7f
>> clt\;bld %D0,7"
>> - [(set_attr "length" "1,2")
>> - (set_attr "cc" "set_n,clobber")])
>> + [(set_attr "length" "1,2")])
>> ;; 0 - x 0 - x 0 - x 0 - x 0 - x 0 - x 0 - x 0 - x 0 - x
>> 0 - x 0 - x
>> ;; neg
>> -(define_insn "negqi2"
>> +(define_insn_and_split "negqi2"
>> [(set (match_operand:QI 0 "register_operand" "=r")
>> (neg:QI (match_operand:QI 1 "register_operand" "0")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (neg:QI (match_dup 1)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*negqi2"
>> + [(set (match_operand:QI 0 "register_operand" "=r")
>> + (neg:QI (match_operand:QI 1 "register_operand" "0")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "neg %0"
>> - [(set_attr "length" "1")
>> - (set_attr "cc" "set_vzn")])
>> + [(set_attr "length" "1")])
>> -(define_insn "*negqihi2"
>> +(define_insn_and_split "*negqihi2_split"
>> [(set (match_operand:HI 0 "register_operand" "=r")
>> (neg:HI (sign_extend:HI (match_operand:QI 1 "register_operand" "0"))))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (neg:HI (sign_extend:HI (match_dup 1))))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*negqihi2"
>> + [(set (match_operand:HI 0 "register_operand" "=r")
>> + (neg:HI (sign_extend:HI (match_operand:QI 1 "register_operand" "0"))))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "clr %B0\;neg %A0\;brge .+2\;com %B0"
>> - [(set_attr "length" "4")
>> - (set_attr "cc" "set_n")])
>> + [(set_attr "length" "4")])
>> -(define_insn "neghi2"
>> +(define_insn_and_split "neghi2"
>> [(set (match_operand:HI 0 "register_operand" "=r,&r")
>> (neg:HI (match_operand:HI 1 "register_operand" "0,r")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (neg:HI (match_dup 1)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*neghi2"
>> + [(set (match_operand:HI 0 "register_operand" "=r,&r")
>> + (neg:HI (match_operand:HI 1 "register_operand" "0,r")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "@
>> neg %B0\;neg %A0\;sbc %B0,__zero_reg__
>> clr %A0\;clr %B0\;sub %A0,%A1\;sbc %B0,%B1"
>> - [(set_attr "length" "3,4")
>> - (set_attr "cc" "set_czn")])
>> + [(set_attr "length" "3,4")])
>> -(define_insn "negpsi2"
>> +(define_insn_and_split "negpsi2"
>> [(set (match_operand:PSI 0 "register_operand" "=!d,r,&r")
>> (neg:PSI (match_operand:PSI 1 "register_operand" "0,0,r")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (neg:PSI (match_dup 1)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*negpsi2"
>> + [(set (match_operand:PSI 0 "register_operand" "=!d,r,&r")
>> + (neg:PSI (match_operand:PSI 1 "register_operand" "0,0,r")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "@
>> com %C0\;com %B0\;neg %A0\;sbci %B0,-1\;sbci %C0,-1
>> com %C0\;com %B0\;com %A0\;adc %A0,__zero_reg__\;adc %B0,__zero_reg__\;adc %C0,__zero_reg__
>> clr %A0\;clr %B0\;clr %C0\;sub %A0,%A1\;sbc %B0,%B1\;sbc %C0,%C1"
>> - [(set_attr "length" "5,6,6")
>> - (set_attr "cc" "set_czn,set_n,set_czn")])
>> + [(set_attr "length" "5,6,6")])
>> -(define_insn "negsi2"
>> +(define_insn_and_split "negsi2"
>> [(set (match_operand:SI 0 "register_operand" "=!d,r,&r,&r")
>> (neg:SI (match_operand:SI 1 "register_operand" "0,0,r ,r")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (neg:SI (match_dup 1)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*negsi2"
>> + [(set (match_operand:SI 0 "register_operand" "=!d,r,&r,&r")
>> + (neg:SI (match_operand:SI 1 "register_operand" "0,0,r ,r")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "@
>> com %D0\;com %C0\;com %B0\;neg %A0\;sbci %B0,lo8(-1)\;sbci %C0,lo8(-1)\;sbci %D0,lo8(-1)
>> com %D0\;com %C0\;com %B0\;com %A0\;adc %A0,__zero_reg__\;adc %B0,__zero_reg__\;adc %C0,__zero_reg__\;adc %D0,__zero_reg__
>> clr %A0\;clr %B0\;clr %C0\;clr %D0\;sub %A0,%A1\;sbc %B0,%B1\;sbc %C0,%C1\;sbc %D0,%D1
>> clr %A0\;clr %B0\;movw %C0,%A0\;sub %A0,%A1\;sbc %B0,%B1\;sbc %C0,%C1\;sbc %D0,%D1"
>> [(set_attr "length" "7,8,8,7")
>> - (set_attr "isa" "*,*,mov,movw")
>> - (set_attr "cc" "set_czn,set_n,set_czn,set_czn")])
>> + (set_attr "isa" "*,*,mov,movw")])
>> -(define_insn "negsf2"
>> +(define_insn_and_split "negsf2"
>> [(set (match_operand:SF 0 "register_operand" "=d,r")
>> (neg:SF (match_operand:SF 1 "register_operand" "0,0")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (neg:SF (match_dup 1)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*negsf2"
>> + [(set (match_operand:SF 0 "register_operand" "=d,r")
>> + (neg:SF (match_operand:SF 1 "register_operand" "0,0")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "@
>> subi %D0,0x80
>> bst %D0,7\;com %D0\;bld %D0,7\;com %D0"
>> - [(set_attr "length" "1,4")
>> - (set_attr "cc" "set_n,set_n")])
>> + [(set_attr "length" "1,4")])
>> ;;
>> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
>> ;; not
>> -(define_insn "one_cmplqi2"
>> +(define_insn_and_split "one_cmplqi2"
>> [(set (match_operand:QI 0 "register_operand" "=r")
>> (not:QI (match_operand:QI 1 "register_operand" "0")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (not:QI (match_dup 1)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*one_cmplqi2"
>> + [(set (match_operand:QI 0 "register_operand" "=r")
>> + (not:QI (match_operand:QI 1 "register_operand" "0")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "com %0"
>> - [(set_attr "length" "1")
>> - (set_attr "cc" "set_czn")])
>> + [(set_attr "length" "1")])
>> -(define_insn "one_cmplhi2"
>> +(define_insn_and_split "one_cmplhi2"
>> [(set (match_operand:HI 0 "register_operand" "=r")
>> (not:HI (match_operand:HI 1 "register_operand" "0")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (not:HI (match_dup 1)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*one_cmplhi2"
>> + [(set (match_operand:HI 0 "register_operand" "=r")
>> + (not:HI (match_operand:HI 1 "register_operand" "0")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "com %0
>> com %B0"
>> - [(set_attr "length" "2")
>> - (set_attr "cc" "set_n")])
>> + [(set_attr "length" "2")])
>> -(define_insn "one_cmplpsi2"
>> +(define_insn_and_split "one_cmplpsi2"
>> [(set (match_operand:PSI 0 "register_operand" "=r")
>> (not:PSI (match_operand:PSI 1 "register_operand" "0")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (not:PSI (match_dup 1)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*one_cmplpsi2"
>> + [(set (match_operand:PSI 0 "register_operand" "=r")
>> + (not:PSI (match_operand:PSI 1 "register_operand" "0")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "com %0\;com %B0\;com %C0"
>> - [(set_attr "length" "3")
>> - (set_attr "cc" "set_n")])
>> + [(set_attr "length" "3")])
>> -(define_insn "one_cmplsi2"
>> +(define_insn_and_split "one_cmplsi2"
>> [(set (match_operand:SI 0 "register_operand" "=r")
>> (not:SI (match_operand:SI 1 "register_operand" "0")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (not:SI (match_dup 1)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*one_cmplsi2"
>> + [(set (match_operand:SI 0 "register_operand" "=r")
>> + (not:SI (match_operand:SI 1 "register_operand" "0")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "com %0
>> com %B0
>> com %C0
>> com %D0"
>> - [(set_attr "length" "4")
>> - (set_attr "cc" "set_n")])
>> + [(set_attr "length" "4")])
>> ;; xx<---x xx<---x xx<---x xx<---x xx<---x xx<---x xx<---x xx<---x
>> xx<---x
>> ;; sign extend
>> @@ -4353,71 +6091,131 @@
>> ;; multiplication. There is no need for combine to propagate hard registers,
>> ;; register allocation can do it just as well.
>> -(define_insn "extendqihi2"
>> +(define_insn_and_split "extendqihi2"
>> [(set (match_operand:HI 0 "register_operand" "=r,r")
>> (sign_extend:HI (match_operand:QI 1 "combine_pseudo_register_operand" "0,*r")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (sign_extend:HI (match_dup 1)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*extendqihi2"
>> + [(set (match_operand:HI 0 "register_operand" "=r,r")
>> + (sign_extend:HI (match_operand:QI 1 "combine_pseudo_register_operand" "0,*r")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> return avr_out_sign_extend (insn, operands, NULL);
>> }
>> [(set_attr "length" "3,4")
>> - (set_attr "adjust_len" "sext")
>> - (set_attr "cc" "set_n")])
>> + (set_attr "adjust_len" "sext")])
>> -(define_insn "extendqipsi2"
>> +(define_insn_and_split "extendqipsi2"
>> [(set (match_operand:PSI 0 "register_operand" "=r,r")
>> (sign_extend:PSI (match_operand:QI 1 "combine_pseudo_register_operand" "0,*r")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (sign_extend:PSI (match_dup 1)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*extendqipsi2"
>> + [(set (match_operand:PSI 0 "register_operand" "=r,r")
>> + (sign_extend:PSI (match_operand:QI 1 "combine_pseudo_register_operand" "0,*r")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> return avr_out_sign_extend (insn, operands, NULL);
>> }
>> [(set_attr "length" "4,5")
>> - (set_attr "adjust_len" "sext")
>> - (set_attr "cc" "set_n")])
>> + (set_attr "adjust_len" "sext")])
>> -(define_insn "extendqisi2"
>> +(define_insn_and_split "extendqisi2"
>> [(set (match_operand:SI 0 "register_operand" "=r,r")
>> (sign_extend:SI (match_operand:QI 1 "combine_pseudo_register_operand" "0,*r")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (sign_extend:SI (match_dup 1)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*extendqisi2"
>> + [(set (match_operand:SI 0 "register_operand" "=r,r")
>> + (sign_extend:SI (match_operand:QI 1 "combine_pseudo_register_operand" "0,*r")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> return avr_out_sign_extend (insn, operands, NULL);
>> }
>> [(set_attr "length" "5,6")
>> - (set_attr "adjust_len" "sext")
>> - (set_attr "cc" "set_n")])
>> + (set_attr "adjust_len" "sext")])
>> -(define_insn "extendhipsi2"
>> +(define_insn_and_split "extendhipsi2"
>> [(set (match_operand:PSI 0 "register_operand" "=r,r")
>> (sign_extend:PSI (match_operand:HI 1 "combine_pseudo_register_operand" "0,*r")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (sign_extend:PSI (match_dup 1)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*extendhipsi2"
>> + [(set (match_operand:PSI 0 "register_operand" "=r,r")
>> + (sign_extend:PSI (match_operand:HI 1 "combine_pseudo_register_operand" "0,*r")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> return avr_out_sign_extend (insn, operands, NULL);
>> }
>> [(set_attr "length" "3,5")
>> - (set_attr "adjust_len" "sext")
>> - (set_attr "cc" "set_n")])
>> + (set_attr "adjust_len" "sext")])
>> -(define_insn "extendhisi2"
>> +(define_insn_and_split "extendhisi2"
>> [(set (match_operand:SI 0 "register_operand" "=r,r")
>> (sign_extend:SI (match_operand:HI 1 "combine_pseudo_register_operand" "0,*r")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (sign_extend:SI (match_dup 1)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*extendhisi2"
>> + [(set (match_operand:SI 0 "register_operand" "=r,r")
>> + (sign_extend:SI (match_operand:HI 1 "combine_pseudo_register_operand" "0,*r")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> return avr_out_sign_extend (insn, operands, NULL);
>> }
>> [(set_attr "length" "4,6")
>> - (set_attr "adjust_len" "sext")
>> - (set_attr "cc" "set_n")])
>> + (set_attr "adjust_len" "sext")])
>> -(define_insn "extendpsisi2"
>> +(define_insn_and_split "extendpsisi2"
>> [(set (match_operand:SI 0 "register_operand" "=r")
>> (sign_extend:SI (match_operand:PSI 1 "combine_pseudo_register_operand" "0")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (sign_extend:SI (match_dup 1)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*extendpsisi2"
>> + [(set (match_operand:SI 0 "register_operand" "=r")
>> + (sign_extend:SI (match_operand:PSI 1 "combine_pseudo_register_operand" "0")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> return avr_out_sign_extend (insn, operands, NULL);
>> }
>> [(set_attr "length" "3")
>> - (set_attr "adjust_len" "sext")
>> - (set_attr "cc" "set_n")])
>> + (set_attr "adjust_len" "sext")])
>> ;; xx<---x xx<---x xx<---x xx<---x xx<---x xx<---x xx<---x xx<---x
>> xx<---x
>> ;; zero extend
>> @@ -4585,145 +6383,133 @@
>> ; Optimize negated tests into reverse compare if overflow is
>> undefined.
>> (define_insn "*negated_tstqi"
>> - [(set (cc0)
>> - (compare (neg:QI (match_operand:QI 0 "register_operand" "r"))
>> + [(set (reg:CC REG_CC)
>> + (compare:CC (neg:QI (match_operand:QI 0 "register_operand" "r"))
>> (const_int 0)))]
>> - "!flag_wrapv && !flag_trapv"
>> + "reload_completed && !flag_wrapv && !flag_trapv"
>> "cp __zero_reg__,%0"
>> - [(set_attr "cc" "compare")
>> - (set_attr "length" "1")])
>> + [(set_attr "length" "1")])
>> (define_insn "*reversed_tstqi"
>> - [(set (cc0)
>> - (compare (const_int 0)
>> + [(set (reg:CC REG_CC)
>> + (compare:CC (const_int 0)
>> (match_operand:QI 0 "register_operand" "r")))]
>> - ""
>> + "reload_completed"
>> "cp __zero_reg__,%0"
>> -[(set_attr "cc" "compare")
>> - (set_attr "length" "2")])
>> +[(set_attr "length" "2")])
>> (define_insn "*negated_tsthi"
>> - [(set (cc0)
>> - (compare (neg:HI (match_operand:HI 0 "register_operand" "r"))
>> + [(set (reg:CC REG_CC)
>> + (compare:CC (neg:HI (match_operand:HI 0 "register_operand" "r"))
>> (const_int 0)))]
>> - "!flag_wrapv && !flag_trapv"
>> + "reload_completed && !flag_wrapv && !flag_trapv"
>> "cp __zero_reg__,%A0
>> cpc __zero_reg__,%B0"
>> -[(set_attr "cc" "compare")
>> - (set_attr "length" "2")])
>> +[(set_attr "length" "2")])
>> ;; Leave here the clobber used by the cmphi pattern for
>> simplicity, even
>> ;; though it is unused, because this pattern is synthesized by avr_reorg.
>> (define_insn "*reversed_tsthi"
>> - [(set (cc0)
>> - (compare (const_int 0)
>> + [(set (reg:CC REG_CC)
>> + (compare:CC (const_int 0)
>> (match_operand:HI 0 "register_operand" "r")))
>> (clobber (match_scratch:QI 1 "=X"))]
>> - ""
>> + "reload_completed"
>> "cp __zero_reg__,%A0
>> cpc __zero_reg__,%B0"
>> -[(set_attr "cc" "compare")
>> - (set_attr "length" "2")])
>> +[(set_attr "length" "2")])
>> (define_insn "*negated_tstpsi"
>> - [(set (cc0)
>> - (compare (neg:PSI (match_operand:PSI 0 "register_operand" "r"))
>> + [(set (reg:CC REG_CC)
>> + (compare:CC (neg:PSI (match_operand:PSI 0 "register_operand" "r"))
>> (const_int 0)))]
>> - "!flag_wrapv && !flag_trapv"
>> + "reload_completed && !flag_wrapv && !flag_trapv"
>> "cp __zero_reg__,%A0\;cpc __zero_reg__,%B0\;cpc __zero_reg__,%C0"
>> - [(set_attr "cc" "compare")
>> - (set_attr "length" "3")])
>> + [(set_attr "length" "3")])
>> (define_insn "*reversed_tstpsi"
>> - [(set (cc0)
>> - (compare (const_int 0)
>> + [(set (reg:CC REG_CC)
>> + (compare:CC (const_int 0)
>> (match_operand:PSI 0 "register_operand" "r")))
>> (clobber (match_scratch:QI 1 "=X"))]
>> - ""
>> + "reload_completed"
>> "cp __zero_reg__,%A0\;cpc __zero_reg__,%B0\;cpc __zero_reg__,%C0"
>> - [(set_attr "cc" "compare")
>> - (set_attr "length" "3")])
>> + [(set_attr "length" "3")])
>> (define_insn "*negated_tstsi"
>> - [(set (cc0)
>> - (compare (neg:SI (match_operand:SI 0 "register_operand" "r"))
>> + [(set (reg:CC REG_CC)
>> + (compare:CC (neg:SI (match_operand:SI 0 "register_operand" "r"))
>> (const_int 0)))]
>> - "!flag_wrapv && !flag_trapv"
>> + "reload_completed && !flag_wrapv && !flag_trapv"
>> "cp __zero_reg__,%A0
>> cpc __zero_reg__,%B0
>> cpc __zero_reg__,%C0
>> cpc __zero_reg__,%D0"
>> - [(set_attr "cc" "compare")
>> - (set_attr "length" "4")])
>> + [(set_attr "length" "4")])
>> ;; "*reversed_tstsi"
>> ;; "*reversed_tstsq" "*reversed_tstusq"
>> ;; "*reversed_tstsa" "*reversed_tstusa"
>> (define_insn "*reversed_tst<mode>"
>> - [(set (cc0)
>> - (compare (match_operand:ALL4 0 "const0_operand" "Y00")
>> + [(set (reg:CC REG_CC)
>> + (compare:CC (match_operand:ALL4 0 "const0_operand" "Y00")
>> (match_operand:ALL4 1 "register_operand" "r")))
>> (clobber (match_scratch:QI 2 "=X"))]
>> - ""
>> + "reload_completed"
>> "cp __zero_reg__,%A1
>> cpc __zero_reg__,%B1
>> cpc __zero_reg__,%C1
>> cpc __zero_reg__,%D1"
>> - [(set_attr "cc" "compare")
>> - (set_attr "length" "4")])
>> + [(set_attr "length" "4")])
>>
>> ;; "cmpqi3"
>> ;; "cmpqq3" "cmpuqq3"
>> (define_insn "cmp<mode>3"
>> - [(set (cc0)
>> - (compare (match_operand:ALL1 0 "register_operand" "r ,r,d")
>> + [(set (reg:CC REG_CC)
>> + (compare:CC (match_operand:ALL1 0 "register_operand" "r ,r,d")
>> (match_operand:ALL1 1 "nonmemory_operand" "Y00,r,i")))]
>> - ""
>> + "reload_completed"
>> "@
>> tst %0
>> cp %0,%1
>> cpi %0,lo8(%1)"
>> - [(set_attr "cc" "compare,compare,compare")
>> - (set_attr "length" "1,1,1")])
>> + [(set_attr "length" "1,1,1")])
>> (define_insn "*cmpqi_sign_extend"
>> - [(set (cc0)
>> - (compare (sign_extend:HI (match_operand:QI 0 "register_operand" "d"))
>> + [(set (reg:CC REG_CC)
>> + (compare:CC (sign_extend:HI (match_operand:QI 0 "register_operand" "d"))
>> (match_operand:HI 1 "s8_operand" "n")))]
>> - ""
>> + "reload_completed"
>> "cpi %0,lo8(%1)"
>> - [(set_attr "cc" "compare")
>> - (set_attr "length" "1")])
>> + [(set_attr "length" "1")])
>>
>> (define_insn "*cmphi.zero-extend.0"
>> - [(set (cc0)
>> - (compare (zero_extend:HI (match_operand:QI 0 "register_operand" "r"))
>> + [(set (reg:CC REG_CC)
>> + (compare:CC (zero_extend:HI (match_operand:QI 0 "register_operand" "r"))
>> (match_operand:HI 1 "register_operand" "r")))]
>> - ""
>> + "reload_completed"
>> "cp %0,%A1\;cpc __zero_reg__,%B1"
>> - [(set_attr "cc" "compare")
>> - (set_attr "length" "2")])
>> + [(set_attr "length" "2")])
>> (define_insn "*cmphi.zero-extend.1"
>> - [(set (cc0)
>> - (compare (match_operand:HI 0 "register_operand" "r")
>> + [(set (reg:CC REG_CC)
>> + (compare:CC (match_operand:HI 0 "register_operand" "r")
>> (zero_extend:HI (match_operand:QI 1 "register_operand" "r"))))]
>> - ""
>> + "reload_completed"
>> "cp %A0,%1\;cpc %B0,__zero_reg__"
>> - [(set_attr "cc" "compare")
>> - (set_attr "length" "2")])
>> + [(set_attr "length" "2")])
>> ;; "cmphi3"
>> ;; "cmphq3" "cmpuhq3"
>> ;; "cmpha3" "cmpuha3"
>> (define_insn "cmp<mode>3"
>> - [(set (cc0)
>> - (compare (match_operand:ALL2 0 "register_operand" "!w ,r ,r,d ,r ,d,r")
>> + [(set (reg:CC REG_CC)
>> + (compare:CC (match_operand:ALL2 0 "register_operand" "!w ,r ,r,d ,r ,d,r")
>> (match_operand:ALL2 1 "nonmemory_operand" "Y00,Y00,r,s ,s ,M,n Ynn")))
>> (clobber (match_scratch:QI 2 "=X ,X ,X,&d,&d ,X,&d"))]
>> - ""
>> + "reload_completed"
>> {
>> switch (which_alternative)
>> {
>> @@ -4749,16 +6535,15 @@
>> return avr_out_compare (insn, operands, NULL);
>> }
>> - [(set_attr "cc" "compare")
>> - (set_attr "length" "1,2,2,3,4,2,4")
>> + [(set_attr "length" "1,2,2,3,4,2,4")
>> (set_attr "adjust_len" "tsthi,tsthi,*,*,*,compare,compare")])
>> (define_insn "*cmppsi"
>> - [(set (cc0)
>> - (compare (match_operand:PSI 0 "register_operand" "r,r,d ,r ,d,r")
>> + [(set (reg:CC REG_CC)
>> + (compare:CC (match_operand:PSI 0 "register_operand" "r,r,d ,r ,d,r")
>> (match_operand:PSI 1 "nonmemory_operand" "L,r,s ,s ,M,n")))
>> (clobber (match_scratch:QI 2 "=X,X,&d,&d ,X,&d"))]
>> - ""
>> + "reload_completed"
>> {
>> switch (which_alternative)
>> {
>> @@ -4779,19 +6564,18 @@
>> return avr_out_compare (insn, operands, NULL);
>> }
>> - [(set_attr "cc" "compare")
>> - (set_attr "length" "3,3,5,6,3,7")
>> + [(set_attr "length" "3,3,5,6,3,7")
>> (set_attr "adjust_len" "tstpsi,*,*,*,compare,compare")])
>> ;; "*cmpsi"
>> ;; "*cmpsq" "*cmpusq"
>> ;; "*cmpsa" "*cmpusa"
>> (define_insn "*cmp<mode>"
>> - [(set (cc0)
>> - (compare (match_operand:ALL4 0 "register_operand" "r ,r ,d,r ,r")
>> + [(set (reg:CC REG_CC)
>> + (compare:CC (match_operand:ALL4 0 "register_operand" "r ,r ,d,r ,r")
>> (match_operand:ALL4 1 "nonmemory_operand" "Y00,r ,M,M ,n Ynn")))
>> (clobber (match_scratch:QI 2 "=X ,X ,X,&d,&d"))]
>> - ""
>> + "reload_completed"
>> {
>> if (0 == which_alternative)
>> return avr_out_tstsi (insn, operands, NULL);
>> @@ -4800,8 +6584,7 @@
>> return avr_out_compare (insn, operands, NULL);
>> }
>> - [(set_attr "cc" "compare")
>> - (set_attr "length" "4,4,4,5,8")
>> + [(set_attr "length" "4,4,4,5,8")
>> (set_attr "adjust_len" "tstsi,*,compare,compare,compare")])
>>
>> @@ -4810,40 +6593,120 @@
>> ;; ----------------------------------------------------------------------
>> ;; Conditional jump instructions
>> -;; "cbranchqi4"
>> -;; "cbranchqq4" "cbranchuqq4"
>> (define_expand "cbranch<mode>4"
>> - [(set (cc0)
>> - (compare (match_operand:ALL1 1 "register_operand" "")
>> - (match_operand:ALL1 2 "nonmemory_operand" "")))
>> - (set (pc)
>> - (if_then_else
>> - (match_operator 0 "ordered_comparison_operator" [(cc0)
>> - (const_int 0)])
>> + [(set (pc)
>> + (if_then_else (match_operator 0 "ordered_comparison_operator"
>> + [(match_operand:ALL1 1 "register_operand" "")
>> + (match_operand:ALL1 2 "nonmemory_operand" "")])
>> (label_ref (match_operand 3 "" ""))
>> (pc)))])
>> -;; "cbranchhi4" "cbranchhq4" "cbranchuhq4" "cbranchha4"
>> "cbranchuha4"
>> -;; "cbranchsi4" "cbranchsq4" "cbranchusq4" "cbranchsa4" "cbranchusa4"
>> -;; "cbranchpsi4"
>> (define_expand "cbranch<mode>4"
>> - [(parallel [(set (cc0)
>> - (compare (match_operand:ORDERED234 1 "register_operand" "")
>> - (match_operand:ORDERED234 2 "nonmemory_operand" "")))
>> - (clobber (match_scratch:QI 4 ""))])
>> - (set (pc)
>> - (if_then_else
>> - (match_operator 0 "ordered_comparison_operator" [(cc0)
>> - (const_int 0)])
>> + [(parallel
>> + [(set (pc)
>> + (if_then_else
>> + (match_operator 0 "ordered_comparison_operator"
>> + [(match_operand:ORDERED234 1 "register_operand" "")
>> + (match_operand:ORDERED234 2 "nonmemory_operand" "")])
>> + (label_ref (match_operand 3 "" ""))
>> + (pc)))
>> + (clobber (match_scratch:QI 4 ""))])])
>> +
>> +;; "*cbranchqi4"
>> +;; "*cbranchqq4" "*cbranchuqq4"
>> +(define_insn_and_split "*cbranch<mode>4"
>> + [(set (pc)
>> + (if_then_else (match_operator 0 "ordered_comparison_operator"
>> + [(match_operand:ALL1 1 "register_operand" "r ,r,d")
>> + (match_operand:ALL1 2 "nonmemory_operand" "Y00,r,i")])
>> (label_ref (match_operand 3 "" ""))
>> - (pc)))])
>> -
>> + (pc)))]
>> + ""
>> + "#"
>> + "reload_completed"
>> + [(set (reg:CC REG_CC)
>> + (compare:CC (match_dup 1) (match_dup 2)))
>> + (set (pc)
>> + (if_then_else (match_op_dup 0
>> + [(reg:CC REG_CC) (const_int 0)])
>> + (label_ref (match_dup 3))
>> + (pc)))]
>> + "")
>> +
>> +;; "*cbranchsi4" "*cbranchsq4" "*cbranchusq4" "*cbranchsa4" "*cbranchusa4"
>> +(define_insn_and_split "*cbranch<mode>4"
>> + [(set (pc)
>> + (if_then_else
>> + (match_operator 0 "ordered_comparison_operator"
>> + [(match_operand:ALL4 1 "register_operand" "r ,r ,d,r ,r")
>> + (match_operand:ALL4 2 "nonmemory_operand" "Y00,r ,M,M ,n Ynn")])
>> + (label_ref (match_operand 3 "" ""))
>> + (pc)))
>> + (clobber (match_scratch:QI 4 "=X ,X ,X,&d,&d"))]
>> + ""
>> + "#"
>> + "reload_completed"
>> + [(parallel [(set (reg:CC REG_CC)
>> + (compare:CC (match_dup 1) (match_dup 2)))
>> + (clobber (match_dup 4))])
>> + (set (pc)
>> + (if_then_else (match_op_dup 0
>> + [(reg:CC REG_CC) (const_int 0)])
>> + (label_ref (match_dup 3))
>> + (pc)))]
>> + "")
>> +
>> +;; "*cbranchpsi4"
>> +(define_insn_and_split "*cbranchpsi4"
>> + [(set (pc)
>> + (if_then_else
>> + (match_operator 0 "ordered_comparison_operator"
>> + [(match_operand:PSI 1 "register_operand" "r,r,d ,r ,d,r")
>> + (match_operand:PSI 2 "nonmemory_operand" "L,r,s ,s ,M,n")])
>> + (label_ref (match_operand 3 "" ""))
>> + (pc)))
>> + (clobber (match_scratch:QI 4 "=X,X,&d,&d ,X,&d"))]
>> + ""
>> + "#"
>> + "reload_completed"
>> + [(parallel [(set (reg:CC REG_CC)
>> + (compare:CC (match_dup 1) (match_dup 2)))
>> + (clobber (match_dup 4))])
>> + (set (pc)
>> + (if_then_else (match_op_dup 0
>> + [(reg:CC REG_CC) (const_int 0)])
>> + (label_ref (match_dup 3))
>> + (pc)))]
>> + "")
>> +
>> +;; "*cbranchhi4" "*cbranchhq4" "*cbranchuhq4" "*cbranchha4" "*cbranchuha4"
>> +(define_insn_and_split "*cbranch<mode>4"
>> + [(set (pc)
>> + (if_then_else
>> + (match_operator 0 "ordered_comparison_operator"
>> + [(match_operand:ALL2 1 "register_operand" "!w ,r ,r,d ,r ,d,r")
>> + (match_operand:ALL2 2 "nonmemory_operand" "Y00,Y00,r,s ,s ,M,n Ynn")])
>> + (label_ref (match_operand 3 "" ""))
>> + (pc)))
>> + (clobber (match_scratch:QI 4 "=X ,X ,X,&d,&d ,X,&d"))]
>> + ""
>> + "#"
>> + "reload_completed"
>> + [(parallel [(set (reg:CC REG_CC)
>> + (compare:CC (match_dup 1) (match_dup 2)))
>> + (clobber (match_dup 4))])
>> + (set (pc)
>> + (if_then_else (match_op_dup 0
>> + [(reg:CC REG_CC) (const_int 0)])
>> + (label_ref (match_dup 3))
>> + (pc)))]
>> + "")
>> ;; Test a single bit in a QI/HI/SImode register.
>> ;; Combine will create zero extract patterns for single bit tests.
>> ;; permit any mode in source pattern by using VOIDmode.
>> -(define_insn "*sbrx_branch<mode>"
>> +(define_insn_and_split "*sbrx_branch<mode>_split"
>> [(set (pc)
>> (if_then_else
>> (match_operator 0 "eqne_operator"
>> @@ -4855,6 +6718,33 @@
>> (label_ref (match_operand 3 "" ""))
>> (pc)))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (pc)
>> + (if_then_else
>> + (match_op_dup 0
>> + [(zero_extract:QIDI
>> + (match_dup 1)
>> + (const_int 1)
>> + (match_dup 2))
>> + (const_int 0)])
>> + (label_ref (match_dup 3))
>> + (pc)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*sbrx_branch<mode>"
>> + [(set (pc)
>> + (if_then_else
>> + (match_operator 0 "eqne_operator"
>> + [(zero_extract:QIDI
>> + (match_operand:VOID 1 "register_operand" "r")
>> + (const_int 1)
>> + (match_operand 2 "const_int_operand" "n"))
>> + (const_int 0)])
>> + (label_ref (match_operand 3 "" ""))
>> + (pc)))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> return avr_out_sbxx_branch (insn, operands);
>> }
>> @@ -4864,14 +6754,13 @@
>> (const_int 2)
>> (if_then_else (match_test "!AVR_HAVE_JMP_CALL")
>> (const_int 2)
>> - (const_int 4))))
>> - (set_attr "cc" "clobber")])
>> + (const_int 4))))])
>> ;; Same test based on bitwise AND. Keep this in case gcc changes
>> patterns.
>> ;; or for old peepholes.
>> ;; Fixme - bitwise Mask will not work for DImode
>> -(define_insn "*sbrx_and_branch<mode>"
>> +(define_insn_and_split "*sbrx_and_branch<mode>_split"
>> [(set (pc)
>> (if_then_else
>> (match_operator 0 "eqne_operator"
>> @@ -4882,6 +6771,31 @@
>> (label_ref (match_operand 3 "" ""))
>> (pc)))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (pc)
>> + (if_then_else
>> + (match_op_dup 0
>> + [(and:QISI
>> + (match_dup 1)
>> + (match_dup 2))
>> + (const_int 0)])
>> + (label_ref (match_dup 3))
>> + (pc)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*sbrx_and_branch<mode>"
>> + [(set (pc)
>> + (if_then_else
>> + (match_operator 0 "eqne_operator"
>> + [(and:QISI
>> + (match_operand:QISI 1 "register_operand" "r")
>> + (match_operand:QISI 2 "single_one_operand" "n"))
>> + (const_int 0)])
>> + (label_ref (match_operand 3 "" ""))
>> + (pc)))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> HOST_WIDE_INT bitnumber;
>> bitnumber = exact_log2 (GET_MODE_MASK (<MODE>mode) & INTVAL (operands[2]));
>> @@ -4894,14 +6808,13 @@
>> (const_int 2)
>> (if_then_else (match_test "!AVR_HAVE_JMP_CALL")
>> (const_int 2)
>> - (const_int 4))))
>> - (set_attr "cc" "clobber")])
>> + (const_int 4))))])
>> ;; Convert sign tests to bit 7/15/31 tests that match the above
>> insns.
>> (define_peephole2
>> - [(set (cc0) (compare (match_operand:QI 0 "register_operand" "")
>> + [(set (reg:CC REG_CC) (compare:CC (match_operand:QI 0 "register_operand" "")
>> (const_int 0)))
>> - (set (pc) (if_then_else (ge (cc0) (const_int 0))
>> + (set (pc) (if_then_else (ge (reg:CC REG_CC) (const_int 0))
>> (label_ref (match_operand 1 "" ""))
>> (pc)))]
>> ""
>> @@ -4913,9 +6826,9 @@
>> (pc)))])
>> (define_peephole2
>> - [(set (cc0) (compare (match_operand:QI 0 "register_operand" "")
>> + [(set (reg:CC REG_CC) (compare:CC (match_operand:QI 0 "register_operand" "")
>> (const_int 0)))
>> - (set (pc) (if_then_else (lt (cc0) (const_int 0))
>> + (set (pc) (if_then_else (lt (reg:CC REG_CC) (const_int 0))
>> (label_ref (match_operand 1 "" ""))
>> (pc)))]
>> ""
>> @@ -4927,10 +6840,10 @@
>> (pc)))])
>> (define_peephole2
>> - [(parallel [(set (cc0) (compare (match_operand:HI 0 "register_operand" "")
>> + [(parallel [(set (reg:CC REG_CC) (compare:CC (match_operand:HI 0 "register_operand" "")
>> (const_int 0)))
>> (clobber (match_operand:HI 2 ""))])
>> - (set (pc) (if_then_else (ge (cc0) (const_int 0))
>> + (set (pc) (if_then_else (ge (reg:CC REG_CC) (const_int 0))
>> (label_ref (match_operand 1 "" ""))
>> (pc)))]
>> ""
>> @@ -4940,10 +6853,10 @@
>> (pc)))])
>> (define_peephole2
>> - [(parallel [(set (cc0) (compare (match_operand:HI 0 "register_operand" "")
>> + [(parallel [(set (reg:CC REG_CC) (compare:CC (match_operand:HI 0 "register_operand" "")
>> (const_int 0)))
>> (clobber (match_operand:HI 2 ""))])
>> - (set (pc) (if_then_else (lt (cc0) (const_int 0))
>> + (set (pc) (if_then_else (lt (reg:CC REG_CC) (const_int 0))
>> (label_ref (match_operand 1 "" ""))
>> (pc)))]
>> ""
>> @@ -4953,10 +6866,10 @@
>> (pc)))])
>> (define_peephole2
>> - [(parallel [(set (cc0) (compare (match_operand:SI 0 "register_operand" "")
>> + [(parallel [(set (reg:CC REG_CC) (compare:CC (match_operand:SI 0 "register_operand" "")
>> (const_int 0)))
>> (clobber (match_operand:SI 2 ""))])
>> - (set (pc) (if_then_else (ge (cc0) (const_int 0))
>> + (set (pc) (if_then_else (ge (reg:CC REG_CC) (const_int 0))
>> (label_ref (match_operand 1 "" ""))
>> (pc)))]
>> ""
>> @@ -4967,10 +6880,10 @@
>> "operands[2] = gen_int_mode (-2147483647 - 1, SImode);")
>> (define_peephole2
>> - [(parallel [(set (cc0) (compare (match_operand:SI 0 "register_operand" "")
>> + [(parallel [(set (reg:CC REG_CC) (compare:CC (match_operand:SI 0 "register_operand" "")
>> (const_int 0)))
>> (clobber (match_operand:SI 2 ""))])
>> - (set (pc) (if_then_else (lt (cc0) (const_int 0))
>> + (set (pc) (if_then_else (lt (reg:CC REG_CC) (const_int 0))
>> (label_ref (match_operand 1 "" ""))
>> (pc)))]
>> ""
>> @@ -4985,19 +6898,37 @@
>> ;; Compare with 0 (test) jumps
>> ;; ************************************************************************
>> -(define_insn "branch"
>> +(define_insn_and_split "branch"
>> [(set (pc)
>> (if_then_else (match_operator 1 "simple_comparison_operator"
>> - [(cc0)
>> + [(reg:CC REG_CC)
>> (const_int 0)])
>> (label_ref (match_operand 0 "" ""))
>> (pc)))]
>> - ""
>> + "reload_completed"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (pc)
>> + (if_then_else (match_op_dup 1
>> + [(reg:CC REG_CC)
>> + (const_int 0)])
>> + (label_ref (match_dup 0))
>> + (pc)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*branch"
>> + [(set (pc)
>> + (if_then_else (match_operator 1 "simple_comparison_operator"
>> + [(reg:CC REG_CC)
>> + (const_int 0)])
>> + (label_ref (match_operand 0 "" ""))
>> + (pc)))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> return ret_cond_branch (operands[1], avr_jump_mode (operands[0], insn), 0);
>> }
>> - [(set_attr "type" "branch")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "branch")])
>>
>> ;; Same as above but wrap SET_SRC so that this branch won't be transformed
>> @@ -5006,66 +6937,119 @@
>> (define_insn "branch_unspec"
>> [(set (pc)
>> (unspec [(if_then_else (match_operator 1 "simple_comparison_operator"
>> - [(cc0)
>> + [(reg:CC REG_CC)
>> (const_int 0)])
>> (label_ref (match_operand 0 "" ""))
>> (pc))
>> ] UNSPEC_IDENTITY))]
>> - ""
>> + "reload_completed"
>> {
>> return ret_cond_branch (operands[1], avr_jump_mode (operands[0], insn), 0);
>> }
>> - [(set_attr "type" "branch")
>> - (set_attr "cc" "none")])
>> + [(set_attr "type" "branch")])
>> ;;
>> ****************************************************************
>> ;; AVR does not have following conditional jumps: LE,LEU,GT,GTU.
>> ;; Convert them all to proper jumps.
>> ;; ****************************************************************/
>> -(define_insn "difficult_branch"
>> +(define_insn_and_split "difficult_branch"
>> + [(set (pc)
>> + (if_then_else (match_operator 1 "difficult_comparison_operator"
>> + [(reg:CC REG_CC)
>> + (const_int 0)])
>> + (label_ref (match_operand 0 "" ""))
>> + (pc)))]
>> + "reload_completed"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (pc)
>> + (if_then_else (match_op_dup 1
>> + [(reg:CC REG_CC)
>> + (const_int 0)])
>> + (label_ref (match_dup 0))
>> + (pc)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*difficult_branch"
>> [(set (pc)
>> (if_then_else (match_operator 1 "difficult_comparison_operator"
>> - [(cc0)
>> + [(reg:CC REG_CC)
>> (const_int 0)])
>> (label_ref (match_operand 0 "" ""))
>> - (pc)))]
>> - ""
>> + (pc)))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> return ret_cond_branch (operands[1], avr_jump_mode (operands[0], insn), 0);
>> }
>> - [(set_attr "type" "branch1")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "branch1")])
>> ;; revers branch
>> -(define_insn "rvbranch"
>> +(define_insn_and_split "rvbranch"
>> [(set (pc)
>> (if_then_else (match_operator 1 "simple_comparison_operator"
>> - [(cc0)
>> + [(reg:CC REG_CC)
>> (const_int 0)])
>> (pc)
>> (label_ref (match_operand 0 "" ""))))]
>> - ""
>> + "reload_completed"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (pc)
>> + (if_then_else (match_op_dup 1
>> + [(reg:CC REG_CC)
>> + (const_int 0)])
>> + (pc)
>> + (label_ref (match_dup 0))))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*rvbranch"
>> + [(set (pc)
>> + (if_then_else (match_operator 1 "simple_comparison_operator"
>> + [(reg:CC REG_CC)
>> + (const_int 0)])
>> + (pc)
>> + (label_ref (match_operand 0 "" ""))))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> return ret_cond_branch (operands[1], avr_jump_mode (operands[0], insn), 1);
>> }
>> - [(set_attr "type" "branch1")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "branch1")])
>> -(define_insn "difficult_rvbranch"
>> +(define_insn_and_split "difficult_rvbranch"
>> [(set (pc)
>> (if_then_else (match_operator 1 "difficult_comparison_operator"
>> - [(cc0)
>> + [(reg:CC REG_CC)
>> (const_int 0)])
>> (pc)
>> (label_ref (match_operand 0 "" ""))))]
>> - ""
>> + "reload_completed"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (pc)
>> + (if_then_else (match_op_dup 1
>> + [(reg:CC REG_CC)
>> + (const_int 0)])
>> + (pc)
>> + (label_ref (match_dup 0))))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*difficult_rvbranch"
>> + [(set (pc)
>> + (if_then_else (match_operator 1 "difficult_comparison_operator"
>> + [(reg:CC REG_CC)
>> + (const_int 0)])
>> + (pc)
>> + (label_ref (match_operand 0 "" ""))))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> return ret_cond_branch (operands[1], avr_jump_mode (operands[0], insn), 1);
>> }
>> - [(set_attr "type" "branch")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "branch")])
>> ;;
>> **************************************************************************
>> ;; Unconditional and other jump instructions.
>> @@ -5087,8 +7071,7 @@
>> (if_then_else (and (ge (minus (pc) (match_dup 0)) (const_int -2047))
>> (le (minus (pc) (match_dup 0)) (const_int 2047)))
>> (const_int 1)
>> - (const_int 2))))
>> - (set_attr "cc" "none")])
>> + (const_int 2))))])
>> ;; call
>> @@ -5124,23 +7107,37 @@
>> (match_operand:HI 2 "general_operand" "")))
>> (use (const_int 1))])])
>> -(define_insn "call_insn"
>> +(define_insn_and_split "call_insn"
>> [(parallel[(call (mem:HI (match_operand:HI 0 "nonmemory_operand" "z,s,z,s"))
>> (match_operand:HI 1 "general_operand" "X,X,X,X"))
>> (use (match_operand:HI 2 "const_int_operand" "L,L,P,P"))])]
>> ;; Operand 1 not used on the AVR.
>> ;; Operand 2 is 1 for tail-call, 0 otherwise.
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(call (mem:HI (match_dup 0))
>> + (match_dup 1))
>> + (use (match_dup 2))
>> + (clobber (reg:CC REG_CC))])])
>
> No need to clobber calle-used reg_cc in a call insn.
>
>> +
>> +(define_insn "*call_insn"
>> + [(call (mem:HI (match_operand:HI 0 "nonmemory_operand" "z,s,z,s"))
>> + (match_operand:HI 1 "general_operand" "X,X,X,X"))
>> + (use (match_operand:HI 2 "const_int_operand" "L,L,P,P"))
>> + (clobber (reg:CC REG_CC))]
>
> Same (clobber reg_cc in call).
>
>> + ;; Operand 1 not used on the AVR.
>> + ;; Operand 2 is 1 for tail-call, 0 otherwise.
>> + "reload_completed"
>> "@
>> %!icall
>> %~call %x0
>> %!ijmp
>> %~jmp %x0"
>> - [(set_attr "cc" "clobber")
>> - (set_attr "length" "1,*,1,*")
>> + [(set_attr "length" "1,*,1,*")
>> (set_attr "adjust_len" "*,call,*,call")])
>> -(define_insn "call_value_insn"
>> +(define_insn_and_split "call_value_insn"
>> [(parallel[(set (match_operand 0 "register_operand" "=r,r,r,r")
>> (call (mem:HI (match_operand:HI 1 "nonmemory_operand" "z,s,z,s"))
>> (match_operand:HI 2 "general_operand" "X,X,X,X")))
>> @@ -5148,21 +7145,36 @@
>> ;; Operand 2 not used on the AVR.
>> ;; Operand 3 is 1 for tail-call, 0 otherwise.
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (call (mem:HI (match_dup 1))
>> + (match_dup 2)))
>> + (use (match_dup 3))
>> + (clobber (reg:CC REG_CC))])])
>
> Same (clobber reg_cc in call).
>
>> +
>> +(define_insn "*call_value_insn"
>> + [(set (match_operand 0 "register_operand" "=r,r,r,r")
>> + (call (mem:HI (match_operand:HI 1 "nonmemory_operand" "z,s,z,s"))
>> + (match_operand:HI 2 "general_operand" "X,X,X,X")))
>> + (use (match_operand:HI 3 "const_int_operand" "L,L,P,P"))
>> + (clobber (reg:CC REG_CC))]
>
> Same (clobber reg_cc in call).
>
>> + ;; Operand 2 not used on the AVR.
>> + ;; Operand 3 is 1 for tail-call, 0 otherwise.
>> + "reload_completed"
>> "@
>> %!icall
>> %~call %x1
>> %!ijmp
>> %~jmp %x1"
>> - [(set_attr "cc" "clobber")
>> - (set_attr "length" "1,*,1,*")
>> + [(set_attr "length" "1,*,1,*")
>> (set_attr "adjust_len" "*,call,*,call")])
>> (define_insn "nop"
>> [(const_int 0)]
>> ""
>> "nop"
>> - [(set_attr "cc" "none")
>> - (set_attr "length" "1")])
>> + [(set_attr "length" "1")])
>> ; indirect jump
>> @@ -5189,8 +7201,7 @@
>> push %A0\;push %B0\;ret
>> eijmp"
>> [(set_attr "length" "1,2,1,3,1")
>> - (set_attr "isa" "rjmp,jmp,ijmp,ijmp,eijmp")
>> - (set_attr "cc" "none")])
>> + (set_attr "isa" "rjmp,jmp,ijmp,ijmp,eijmp")])
>> ;; table jump
>> ;; For entries in jump table see avr_output_addr_vec.
>> @@ -5198,23 +7209,41 @@
>> ;; Table made from
>> ;; "rjmp .L<n>" instructions for <= 8K devices
>> ;; ".word gs(.L<n>)" addresses for > 8K devices
>> -(define_insn "*tablejump"
>> +(define_insn_and_split "*tablejump_split"
>> [(set (pc)
>> - (unspec:HI [(match_operand:HI 0 "register_operand" "!z,*r,z")]
>> + (unspec:HI [(match_operand:HI 0 "register_operand" "z")]
>> UNSPEC_INDEX_JMP))
>> (use (label_ref (match_operand 1 "" "")))
>> (clobber (match_dup 0))
>> (clobber (const_int 0))]
>> "!AVR_HAVE_EIJMP_EICALL"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (pc)
>> + (unspec:HI [(match_dup 0)]
>> + UNSPEC_INDEX_JMP))
>> + (use (label_ref (match_dup 1)))
>> + (clobber (match_dup 0))
>> + (clobber (const_int 0))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*tablejump"
>> + [(set (pc)
>> + (unspec:HI [(match_operand:HI 0 "register_operand" "!z,*r,z")]
>
> This won't work. You cannot ditch constraints above and then pretend
> they are still there after reload.
>
>> + UNSPEC_INDEX_JMP))
>> + (use (label_ref (match_operand 1 "" "")))
>> + (clobber (match_dup 0))
>> + (clobber (const_int 0))
>> + (clobber (reg:CC REG_CC))]
>> + "!AVR_HAVE_EIJMP_EICALL && reload_completed"
>> "@
>> ijmp
>> push %A0\;push %B0\;ret
>> jmp __tablejump2__"
>> [(set_attr "length" "1,3,2")
>> - (set_attr "isa" "rjmp,rjmp,jmp")
>> - (set_attr "cc" "none,none,clobber")])
>> + (set_attr "isa" "rjmp,rjmp,jmp")])
>> -(define_insn "*tablejump.3byte-pc"
>> +(define_insn_and_split "*tablejump.3byte-pc_split"
>> [(set (pc)
>> (unspec:HI [(reg:HI REG_Z)]
>> UNSPEC_INDEX_JMP))
>> @@ -5222,10 +7251,28 @@
>> (clobber (reg:HI REG_Z))
>> (clobber (reg:QI 24))]
>> "AVR_HAVE_EIJMP_EICALL"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (pc)
>> + (unspec:HI [(reg:HI REG_Z)]
>> + UNSPEC_INDEX_JMP))
>> + (use (label_ref (match_dup 0)))
>> + (clobber (reg:HI REG_Z))
>> + (clobber (reg:QI 24))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*tablejump.3byte-pc"
>
> Whilst not incorrect, it's confusing to use the same insn name
> for different things.
>
>> + [(set (pc)
>> + (unspec:HI [(reg:HI REG_Z)]
>> + UNSPEC_INDEX_JMP))
>> + (use (label_ref (match_operand 0 "" "")))
>> + (clobber (reg:HI REG_Z))
>> + (clobber (reg:QI 24))
>> + (clobber (reg:CC REG_CC))]
>> + "AVR_HAVE_EIJMP_EICALL && reload_completed"
>> "clr r24\;subi r30,pm_lo8(-(%0))\;sbci r31,pm_hi8(-(%0))\;sbci r24,pm_hh8(-(%0))\;jmp __tablejump2__"
>> [(set_attr "length" "6")
>> - (set_attr "isa" "eijmp")
>> - (set_attr "cc" "clobber")])
>> + (set_attr "isa" "eijmp")])
>>
>> ;; FIXME: casesi comes up with an SImode switch value $0 which
>> @@ -5254,16 +7301,13 @@
>> (plus:SI (match_operand:SI 0 "register_operand")
>> (match_operand:SI 1 "const_int_operand")))
>> (clobber (scratch:QI))])
>> - (parallel [(set (cc0)
>> - (compare (match_dup 5)
>> - (match_operand:SI 2 "const_int_operand")))
>> - (clobber (scratch:QI))])
>> - (set (pc)
>> - (if_then_else (gtu (cc0)
>> - (const_int 0))
>> - (label_ref (match_operand 4))
>> - (pc)))
>> + (parallel [(set (pc)
>> + (if_then_else (gtu (match_dup 5)
>> + (match_operand:SI 2 "const_int_operand"))
>> + (label_ref (match_operand 4))
>> + (pc)))
>> + (clobber (scratch:QI))])
>
> Indent.
>
>> (set (match_dup 7)
>> (match_dup 6))
>> @@ -5312,16 +7356,13 @@
>> (plus:SI (match_dup 0)
>> (match_operand:SI 1 "const_int_operand")))
>> (clobber (scratch:QI))])
>> - (parallel [(set (cc0)
>> - (compare (match_dup 5)
>> - (match_operand:SI 2 "const_int_operand")))
>> - (clobber (scratch:QI))])
>> - (set (pc)
>> - (if_then_else (gtu (cc0)
>> - (const_int 0))
>> - (label_ref (match_operand 4))
>> - (pc)))
>> + (parallel [(set (pc)
>> + (if_then_else (gtu (match_dup 5)
>> + (match_operand:SI 2 "const_int_operand"))
>> + (label_ref (match_operand 4))
>> + (pc)))
>> + (clobber (scratch:QI))])
>> (set (match_operand:HI 7 "register_operand")
>> (match_operand:HI 6))
>> @@ -5341,11 +7382,10 @@
>> ;; This instruction sets Z flag
>> (define_insn "sez"
>> - [(set (cc0) (const_int 0))]
>> - ""
>> + [(set (reg:CC REG_CC) (const_int 0))]
>> + "reload_completed"
>
> Why just after reload? I don't understand why this insn is there
> in the first place. What is it good for?
>
>> "sez"
>> - [(set_attr "length" "1")
>> - (set_attr "cc" "compare")])
>> + [(set_attr "length" "1")])
>> ;; Clear/set/test a single bit in I/O address space.
>> @@ -5358,8 +7398,7 @@
>> operands[2] = GEN_INT (exact_log2 (~INTVAL (operands[1]) & 0xff));
>> return "cbi %i0,%2";
>> }
>> - [(set_attr "length" "1")
>> - (set_attr "cc" "none")])
>> + [(set_attr "length" "1")])
>> (define_insn "*sbi"
>> [(set (mem:QI (match_operand 0 "low_io_address_operand" "i"))
>> @@ -5370,11 +7409,10 @@
>> operands[2] = GEN_INT (exact_log2 (INTVAL (operands[1]) & 0xff));
>> return "sbi %i0,%2";
>> }
>> - [(set_attr "length" "1")
>> - (set_attr "cc" "none")])
>> + [(set_attr "length" "1")])
>> ;; Lower half of the I/O space - use sbic/sbis directly.
>> -(define_insn "*sbix_branch"
>> +(define_insn_and_split "*sbix_branch_split"
>> [(set (pc)
>> (if_then_else
>> (match_operator 0 "eqne_operator"
>> @@ -5386,6 +7424,33 @@
>> (label_ref (match_operand 3 "" ""))
>> (pc)))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (pc)
>> + (if_then_else
>> + (match_operator 0 "eqne_operator"
>> + [(zero_extract:QIHI
>> + (mem:QI (match_dup 1))
>> + (const_int 1)
>> + (match_dup 2))
>> + (const_int 0)])
>> + (label_ref (match_dup 3))
>> + (pc)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*sbix_branch"
>> + [(set (pc)
>> + (if_then_else
>> + (match_operator 0 "eqne_operator"
>> + [(zero_extract:QIHI
>> + (mem:QI (match_operand 1 "low_io_address_operand" "i"))
>> + (const_int 1)
>> + (match_operand 2 "const_int_operand" "n"))
>> + (const_int 0)])
>> + (label_ref (match_operand 3 "" ""))
>> + (pc)))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> return avr_out_sbxx_branch (insn, operands);
>> }
>> @@ -5395,11 +7460,10 @@
>> (const_int 2)
>> (if_then_else (match_test "!AVR_HAVE_JMP_CALL")
>> (const_int 2)
>> - (const_int 4))))
>> - (set_attr "cc" "clobber")])
>> + (const_int 4))))])
>> ;; Tests of bit 7 are pessimized to sign tests, so we need this
>> too...
>> -(define_insn "*sbix_branch_bit7"
>> +(define_insn_and_split "*sbix_branch_bit7_split"
>> [(set (pc)
>> (if_then_else
>> (match_operator 0 "gelt_operator"
>> @@ -5408,6 +7472,27 @@
>> (label_ref (match_operand 2 "" ""))
>> (pc)))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (pc)
>> + (if_then_else
>> + (match_operator 0 "gelt_operator"
>> + [(mem:QI (match_dup 1))
>> + (const_int 0)])
>> + (label_ref (match_dup 2))
>> + (pc)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*sbix_branch_bit7"
>> + [(set (pc)
>> + (if_then_else
>> + (match_operator 0 "gelt_operator"
>> + [(mem:QI (match_operand 1 "low_io_address_operand" "i"))
>> + (const_int 0)])
>> + (label_ref (match_operand 2 "" ""))
>> + (pc)))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> operands[3] = operands[2];
>> operands[2] = GEN_INT (7);
>> @@ -5419,11 +7504,10 @@
>> (const_int 2)
>> (if_then_else (match_test "!AVR_HAVE_JMP_CALL")
>> (const_int 2)
>> - (const_int 4))))
>> - (set_attr "cc" "clobber")])
>> + (const_int 4))))])
>> ;; Upper half of the I/O space - read port to __tmp_reg__ and use
>> sbrc/sbrs.
>> -(define_insn "*sbix_branch_tmp"
>> +(define_insn_and_split "*sbix_branch_tmp_split"
>> [(set (pc)
>> (if_then_else
>> (match_operator 0 "eqne_operator"
>> @@ -5435,6 +7519,33 @@
>> (label_ref (match_operand 3 "" ""))
>> (pc)))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (pc)
>> + (if_then_else
>> + (match_operator 0 "eqne_operator"
>> + [(zero_extract:QIHI
>> + (mem:QI (match_dup 1))
>> + (const_int 1)
>> + (match_dup 2))
>> + (const_int 0)])
>> + (label_ref (match_dup 3))
>> + (pc)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*sbix_branch_tmp"
>> + [(set (pc)
>> + (if_then_else
>> + (match_operator 0 "eqne_operator"
>> + [(zero_extract:QIHI
>> + (mem:QI (match_operand 1 "high_io_address_operand" "n"))
>> + (const_int 1)
>> + (match_operand 2 "const_int_operand" "n"))
>> + (const_int 0)])
>> + (label_ref (match_operand 3 "" ""))
>> + (pc)))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> return avr_out_sbxx_branch (insn, operands);
>> }
>> @@ -5444,10 +7555,9 @@
>> (const_int 3)
>> (if_then_else (match_test "!AVR_HAVE_JMP_CALL")
>> (const_int 3)
>> - (const_int 5))))
>> - (set_attr "cc" "clobber")])
>> + (const_int 5))))])
>> -(define_insn "*sbix_branch_tmp_bit7"
>> +(define_insn_and_split "*sbix_branch_tmp_bit7_split"
>> [(set (pc)
>> (if_then_else
>> (match_operator 0 "gelt_operator"
>> @@ -5456,6 +7566,27 @@
>> (label_ref (match_operand 2 "" ""))
>> (pc)))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (pc)
>> + (if_then_else
>> + (match_operator 0 "gelt_operator"
>> + [(mem:QI (match_dup 1))
>> + (const_int 0)])
>> + (label_ref (match_dup 2))
>> + (pc)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*sbix_branch_tmp_bit7"
>> + [(set (pc)
>> + (if_then_else
>> + (match_operator 0 "gelt_operator"
>> + [(mem:QI (match_operand 1 "high_io_address_operand" "n"))
>> + (const_int 0)])
>> + (label_ref (match_operand 2 "" ""))
>> + (pc)))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> operands[3] = operands[2];
>> operands[2] = GEN_INT (7);
>> @@ -5467,8 +7598,7 @@
>> (const_int 3)
>> (if_then_else (match_test "!AVR_HAVE_JMP_CALL")
>> (const_int 3)
>> - (const_int 5))))
>> - (set_attr "cc" "clobber")])
>> + (const_int 5))))])
>> ;; ************************* Peepholes
>> ********************************
>> @@ -5477,12 +7607,12 @@
>> (plus:SI (match_dup 0)
>> (const_int -1)))
>> (clobber (scratch:QI))])
>> - (parallel [(set (cc0)
>> - (compare (match_dup 0)
>> + (parallel [(set (reg:CC REG_CC)
>> + (compare:CC (match_dup 0)
>> (const_int -1)))
>> (clobber (match_operand:QI 1 "d_register_operand" ""))])
>> (set (pc)
>> - (if_then_else (eqne (cc0)
>> + (if_then_else (eqne (reg:CC REG_CC)
>> (const_int 0))
>> (label_ref (match_operand 2 "" ""))
>> (pc)))]
>> @@ -5520,12 +7650,12 @@
>> [(set (match_operand:HI 0 "d_register_operand" "")
>> (plus:HI (match_dup 0)
>> (const_int -1)))
>> - (parallel [(set (cc0)
>> - (compare (match_dup 0)
>> + (parallel [(set (reg:CC REG_CC)
>> + (compare:CC (match_dup 0)
>> (const_int -1)))
>> (clobber (match_operand:QI 1 "d_register_operand" ""))])
>> (set (pc)
>> - (if_then_else (eqne (cc0)
>> + (if_then_else (eqne (reg:CC REG_CC)
>> (const_int 0))
>> (label_ref (match_operand 2 "" ""))
>> (pc)))]
>> @@ -5561,12 +7691,12 @@
>> (plus:HI (match_dup 0)
>> (const_int -1)))
>> (clobber (scratch:QI))])
>> - (parallel [(set (cc0)
>> - (compare (match_dup 0)
>> + (parallel [(set (reg:CC REG_CC)
>> + (compare:CC (match_dup 0)
>> (const_int -1)))
>> (clobber (match_operand:QI 1 "d_register_operand" ""))])
>> (set (pc)
>> - (if_then_else (eqne (cc0)
>> + (if_then_else (eqne (reg:CC REG_CC)
>> (const_int 0))
>> (label_ref (match_operand 2 "" ""))
>> (pc)))]
>> @@ -5602,12 +7732,12 @@
>> (plus:HI (match_dup 0)
>> (const_int -1)))
>> (clobber (match_operand:QI 3 "d_register_operand" ""))])
>> - (parallel [(set (cc0)
>> - (compare (match_dup 0)
>> + (parallel [(set (reg:CC REG_CC)
>> + (compare:CC (match_dup 0)
>> (const_int -1)))
>> (clobber (match_operand:QI 1 "d_register_operand" ""))])
>> (set (pc)
>> - (if_then_else (eqne (cc0)
>> + (if_then_else (eqne (reg:CC REG_CC)
>> (const_int 0))
>> (label_ref (match_operand 2 "" ""))
>> (pc)))]
>> @@ -5639,11 +7769,11 @@
>> [(set (match_operand:QI 0 "d_register_operand" "")
>> (plus:QI (match_dup 0)
>> (const_int -1)))
>> - (set (cc0)
>> - (compare (match_dup 0)
>> + (set (reg:CC REG_CC)
>> + (compare:CC (match_dup 0)
>> (const_int -1)))
>> (set (pc)
>> - (if_then_else (eqne (cc0)
>> + (if_then_else (eqne (reg:CC REG_CC)
>> (const_int 0))
>> (label_ref (match_operand 1 "" ""))
>> (pc)))]
>> @@ -5674,11 +7804,11 @@
>>
>> (define_peephole ; "*cpse.eq"
>> - [(set (cc0)
>> - (compare (match_operand:ALL1 1 "register_operand" "r,r")
>> + [(set (reg:CC REG_CC)
>> + (compare:CC (match_operand:ALL1 1 "register_operand" "r,r")
>> (match_operand:ALL1 2 "reg_or_0_operand" "r,Y00")))
>> (set (pc)
>> - (if_then_else (eq (cc0)
>> + (if_then_else (eq (reg:CC REG_CC)
>> (const_int 0))
>> (label_ref (match_operand 0 "" ""))
>> (pc)))]
>> @@ -5709,11 +7839,11 @@
>> ;; and thus longer and slower and not easy to be rolled back.
>> (define_peephole ; "*cpse.ne"
>> - [(set (cc0)
>> - (compare (match_operand:ALL1 1 "register_operand" "")
>> + [(set (reg:CC REG_CC)
>> + (compare:CC (match_operand:ALL1 1 "register_operand" "")
>> (match_operand:ALL1 2 "reg_or_0_operand" "")))
>> (set (pc)
>> - (if_then_else (ne (cc0)
>> + (if_then_else (ne (reg:CC REG_CC)
>> (const_int 0))
>> (label_ref (match_operand 0 "" ""))
>> (pc)))]
>> @@ -5736,8 +7866,7 @@
>> (mem:QI (pre_inc:HI (reg:HI REG_SP))))]
>> ""
>> "pop %0"
>> - [(set_attr "cc" "none")
>> - (set_attr "length" "1")])
>> + [(set_attr "length" "1")])
>> ;; Enable Interrupts
>> (define_expand "enable_interrupt"
>> @@ -5770,11 +7899,10 @@
>> "@
>> cli
>> sei"
>> - [(set_attr "length" "1")
>> - (set_attr "cc" "none")])
>> + [(set_attr "length" "1")])
>> ;; Library prologue saves
>> -(define_insn "call_prologue_saves"
>> +(define_insn_and_split "*call_prologue_saves"
>
> No need to split, just add the clobber: This insn is generated by
> pass pro_epilogue (avr_prologue_setup_frame) after reload.
>
>> [(unspec_volatile:HI [(const_int 0)] UNSPECV_PROLOGUE_SAVES)
>> (match_operand:HI 0 "immediate_operand" "i,i")
>> (set (reg:HI REG_SP)
>> @@ -5783,16 +7911,36 @@
>> (use (reg:HI REG_X))
>> (clobber (reg:HI REG_Z))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(unspec_volatile:HI [(const_int 0)] UNSPECV_PROLOGUE_SAVES)
>> + (match_dup 0)
>> + (set (reg:HI REG_SP)
>> + (minus:HI (reg:HI REG_SP)
>> + (match_dup 1)))
>> + (use (reg:HI REG_X))
>> + (clobber (reg:HI REG_Z))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "call_prologue_saves"
>> + [(unspec_volatile:HI [(const_int 0)] UNSPECV_PROLOGUE_SAVES)
>> + (match_operand:HI 0 "immediate_operand" "i,i")
>> + (set (reg:HI REG_SP)
>> + (minus:HI (reg:HI REG_SP)
>> + (match_operand:HI 1 "immediate_operand" "i,i")))
>> + (use (reg:HI REG_X))
>> + (clobber (reg:HI REG_Z))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "ldi r30,lo8(gs(1f))
>> ldi r31,hi8(gs(1f))
>> %~jmp __prologue_saves__+((18 - %0) * 2)
>> 1:"
>> [(set_attr "length" "5,6")
>> - (set_attr "cc" "clobber")
>> (set_attr "isa" "rjmp,jmp")])
>> ; epilogue restores using library
>> -(define_insn "epilogue_restores"
>> +(define_insn_and_split "*epilogue_restores"
>
> Similar (emit by epilogue).
>
>> [(unspec_volatile:QI [(const_int 0)] UNSPECV_EPILOGUE_RESTORES)
>> (set (reg:HI REG_Y)
>> (plus:HI (reg:HI REG_Y)
>> @@ -5802,10 +7950,32 @@
>> (match_dup 0)))
>> (clobber (reg:QI REG_Z))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(unspec_volatile:QI [(const_int 0)] UNSPECV_EPILOGUE_RESTORES)
>> + (set (reg:HI REG_Y)
>> + (plus:HI (reg:HI REG_Y)
>> + (match_dup 0)))
>> + (set (reg:HI REG_SP)
>> + (plus:HI (reg:HI REG_Y)
>> + (match_dup 0)))
>> + (clobber (reg:QI REG_Z))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "epilogue_restores"
>> + [(unspec_volatile:QI [(const_int 0)] UNSPECV_EPILOGUE_RESTORES)
>> + (set (reg:HI REG_Y)
>> + (plus:HI (reg:HI REG_Y)
>> + (match_operand:HI 0 "immediate_operand" "i,i")))
>> + (set (reg:HI REG_SP)
>> + (plus:HI (reg:HI REG_Y)
>> + (match_dup 0)))
>> + (clobber (reg:QI REG_Z))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "ldi r30, lo8(%0)
>> %~jmp __epilogue_restores__ + ((18 - %0) * 2)"
>> [(set_attr "length" "2,3")
>> - (set_attr "cc" "clobber")
>> (set_attr "isa" "rjmp,jmp")])
>>
>> @@ -5826,7 +7996,7 @@
>> MEM_VOLATILE_P (operands[2]) = 1;
>> })
>> -(define_insn "*gasisr"
>> +(define_insn_and_split "*gasisr_split"
>
> Similar (by avr specific proep pass). Just add the clobber.
>
>> [(unspec_volatile [(match_operand:QI 0 "const_int_operand" "P,K")
>> (match_operand:QI 1 "const_int_operand" "n,n")]
>> UNSPECV_GASISR)
>> @@ -5835,9 +8005,29 @@
>> (set (match_operand:BLK 2)
>> (unspec_volatile:BLK [(match_dup 2)] UNSPECV_MEMORY_BARRIER))]
>> "avr_gasisr_prologues"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(unspec_volatile [(match_dup 0)
>> + (match_dup 1)]
>> + UNSPECV_GASISR)
>> + (set (reg:HI REG_SP)
>> + (unspec_volatile:HI [(reg:HI REG_SP)] UNSPECV_GASISR))
>> + (set (match_dup 2)
>> + (unspec_volatile:BLK [(match_dup 2)] UNSPECV_MEMORY_BARRIER))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*gasisr"
>> + [(unspec_volatile [(match_operand:QI 0 "const_int_operand" "P,K")
>> + (match_operand:QI 1 "const_int_operand" "n,n")]
>> + UNSPECV_GASISR)
>> + (set (reg:HI REG_SP)
>> + (unspec_volatile:HI [(reg:HI REG_SP)] UNSPECV_GASISR))
>> + (set (match_operand:BLK 2)
>> + (unspec_volatile:BLK [(match_dup 2)] UNSPECV_MEMORY_BARRIER))
>> + (clobber (reg:CC REG_CC))]
>> + "avr_gasisr_prologues && reload_completed"
>> "__gcc_isr %0"
>> - [(set_attr "length" "6,5")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "length" "6,5")])
>>
>> ; return
>> @@ -5845,8 +8035,7 @@
>> [(return)]
>> "reload_completed && avr_simple_epilogue ()"
>> "ret"
>> - [(set_attr "cc" "none")
>> - (set_attr "length" "1")])
>> + [(set_attr "length" "1")])
>> (define_insn "return_from_epilogue"
>> [(return)]
>> @@ -5855,8 +8044,7 @@
>> && !(cfun->machine->is_interrupt || cfun->machine->is_signal)
>> && !cfun->machine->is_naked"
>> "ret"
>> - [(set_attr "cc" "none")
>> - (set_attr "length" "1")])
>> + [(set_attr "length" "1")])
>> (define_insn "return_from_interrupt_epilogue"
>> [(return)]
>> @@ -5865,8 +8053,7 @@
>> && (cfun->machine->is_interrupt || cfun->machine->is_signal)
>> && !cfun->machine->is_naked"
>> "reti"
>> - [(set_attr "cc" "none")
>> - (set_attr "length" "1")])
>> + [(set_attr "length" "1")])
>> (define_insn "return_from_naked_epilogue"
>> [(return)]
>> @@ -5874,8 +8061,7 @@
>> && cfun->machine
>> && cfun->machine->is_naked"
>> ""
>> - [(set_attr "cc" "none")
>> - (set_attr "length" "0")])
>> + [(set_attr "length" "0")])
>> (define_expand "prologue"
>> [(const_int 0)]
>> @@ -5904,7 +8090,7 @@
>> ;; Some instructions resp. instruction sequences available
>> ;; via builtins.
>> -(define_insn "delay_cycles_1"
>> +(define_insn_and_split "delay_cycles_1"
>> [(unspec_volatile [(match_operand:QI 0 "const_int_operand" "n")
>> (const_int 1)]
>> UNSPECV_DELAY_CYCLES)
>> @@ -5912,13 +8098,31 @@
>> (unspec_volatile:BLK [(match_dup 1)] UNSPECV_MEMORY_BARRIER))
>> (clobber (match_scratch:QI 2 "=&d"))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(unspec_volatile [(match_dup 0)
>> + (const_int 1)]
>> + UNSPECV_DELAY_CYCLES)
>> + (set (match_dup 1)
>> + (unspec_volatile:BLK [(match_dup 1)] UNSPECV_MEMORY_BARRIER))
>> + (clobber (match_dup 2))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*delay_cycles_1"
>> + [(unspec_volatile [(match_operand:QI 0 "const_int_operand" "n")
>> + (const_int 1)]
>> + UNSPECV_DELAY_CYCLES)
>> + (set (match_operand:BLK 1 "" "")
>> + (unspec_volatile:BLK [(match_dup 1)] UNSPECV_MEMORY_BARRIER))
>> + (clobber (match_scratch:QI 2 "=&d"))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "ldi %2,lo8(%0)
>> 1: dec %2
>> brne 1b"
>> - [(set_attr "length" "3")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "length" "3")])
>> -(define_insn "delay_cycles_2"
>> +(define_insn_and_split "delay_cycles_2"
>> [(unspec_volatile [(match_operand:HI 0 "const_int_operand" "n,n")
>> (const_int 2)]
>> UNSPECV_DELAY_CYCLES)
>> @@ -5926,14 +8130,32 @@
>> (unspec_volatile:BLK [(match_dup 1)] UNSPECV_MEMORY_BARRIER))
>> (clobber (match_scratch:HI 2 "=&w,&d"))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(unspec_volatile [(match_dup 0)
>> + (const_int 2)]
>> + UNSPECV_DELAY_CYCLES)
>> + (set (match_dup 1)
>> + (unspec_volatile:BLK [(match_dup 1)] UNSPECV_MEMORY_BARRIER))
>> + (clobber (match_dup 2))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*delay_cycles_2"
>> + [(unspec_volatile [(match_operand:HI 0 "const_int_operand" "n,n")
>> + (const_int 2)]
>> + UNSPECV_DELAY_CYCLES)
>> + (set (match_operand:BLK 1 "" "")
>> + (unspec_volatile:BLK [(match_dup 1)] UNSPECV_MEMORY_BARRIER))
>> + (clobber (match_scratch:HI 2 "=&w,&d"))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "@
>> ldi %A2,lo8(%0)\;ldi %B2,hi8(%0)\n1: sbiw %A2,1\;brne 1b
>> ldi %A2,lo8(%0)\;ldi %B2,hi8(%0)\n1: subi %A2,1\;sbci %B2,0\;brne 1b"
>> [(set_attr "length" "4,5")
>> - (set_attr "isa" "no_tiny,tiny")
>> - (set_attr "cc" "clobber")])
>> + (set_attr "isa" "no_tiny,tiny")])
>> -(define_insn "delay_cycles_3"
>> +(define_insn_and_split "delay_cycles_3"
>> [(unspec_volatile [(match_operand:SI 0 "const_int_operand" "n")
>> (const_int 3)]
>> UNSPECV_DELAY_CYCLES)
>> @@ -5943,6 +8165,29 @@
>> (clobber (match_scratch:QI 3 "=&d"))
>> (clobber (match_scratch:QI 4 "=&d"))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(unspec_volatile [(match_dup 0)
>> + (const_int 3)]
>> + UNSPECV_DELAY_CYCLES)
>> + (set (match_dup 1)
>> + (unspec_volatile:BLK [(match_dup 1)] UNSPECV_MEMORY_BARRIER))
>> + (clobber (match_dup 2))
>> + (clobber (match_dup 3))
>> + (clobber (match_dup 4))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*delay_cycles_3"
>> + [(unspec_volatile [(match_operand:SI 0 "const_int_operand" "n")
>> + (const_int 3)]
>> + UNSPECV_DELAY_CYCLES)
>> + (set (match_operand:BLK 1 "" "")
>> + (unspec_volatile:BLK [(match_dup 1)] UNSPECV_MEMORY_BARRIER))
>> + (clobber (match_scratch:QI 2 "=&d"))
>> + (clobber (match_scratch:QI 3 "=&d"))
>> + (clobber (match_scratch:QI 4 "=&d"))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "ldi %2,lo8(%0)
>> ldi %3,hi8(%0)
>> ldi %4,hlo8(%0)
>> @@ -5950,10 +8195,9 @@
>> sbci %3,0
>> sbci %4,0
>> brne 1b"
>> - [(set_attr "length" "7")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "length" "7")])
>> -(define_insn "delay_cycles_4"
>> +(define_insn_and_split "delay_cycles_4"
>> [(unspec_volatile [(match_operand:SI 0 "const_int_operand" "n")
>> (const_int 4)]
>> UNSPECV_DELAY_CYCLES)
>> @@ -5964,6 +8208,31 @@
>> (clobber (match_scratch:QI 4 "=&d"))
>> (clobber (match_scratch:QI 5 "=&d"))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(unspec_volatile [(match_dup 0)
>> + (const_int 4)]
>> + UNSPECV_DELAY_CYCLES)
>> + (set (match_dup 1)
>> + (unspec_volatile:BLK [(match_dup 1)] UNSPECV_MEMORY_BARRIER))
>> + (clobber (match_dup 2))
>> + (clobber (match_dup 3))
>> + (clobber (match_dup 4))
>> + (clobber (match_dup 5))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*delay_cycles_4"
>> + [(unspec_volatile [(match_operand:SI 0 "const_int_operand" "n")
>> + (const_int 4)]
>> + UNSPECV_DELAY_CYCLES)
>> + (set (match_operand:BLK 1 "" "")
>> + (unspec_volatile:BLK [(match_dup 1)] UNSPECV_MEMORY_BARRIER))
>> + (clobber (match_scratch:QI 2 "=&d"))
>> + (clobber (match_scratch:QI 3 "=&d"))
>> + (clobber (match_scratch:QI 4 "=&d"))
>> + (clobber (match_scratch:QI 5 "=&d"))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "ldi %2,lo8(%0)
>> ldi %3,hi8(%0)
>> ldi %4,hlo8(%0)
>> @@ -5973,24 +8242,39 @@
>> sbci %4,0
>> sbci %5,0
>> brne 1b"
>> - [(set_attr "length" "9")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "length" "9")])
>>
>> ;; __builtin_avr_insert_bits
>> -(define_insn "insert_bits"
>> +(define_insn_and_split "insert_bits"
>> [(set (match_operand:QI 0 "register_operand" "=r ,d ,r")
>> (unspec:QI [(match_operand:SI 1 "const_int_operand" "C0f,Cxf,C0f")
>> (match_operand:QI 2 "register_operand" "r ,r ,r")
>> (match_operand:QI 3 "nonmemory_operand" "n ,0 ,0")]
>> UNSPEC_INSERT_BITS))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (unspec:QI [(match_dup 1)
>> + (match_dup 2)
>> + (match_dup 3)]
>> + UNSPEC_INSERT_BITS))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*insert_bits"
>> + [(set (match_operand:QI 0 "register_operand" "=r ,d ,r")
>> + (unspec:QI [(match_operand:SI 1 "const_int_operand" "C0f,Cxf,C0f")
>> + (match_operand:QI 2 "register_operand" "r ,r ,r")
>> + (match_operand:QI 3 "nonmemory_operand" "n ,0 ,0")]
>> + UNSPEC_INSERT_BITS))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> return avr_out_insert_bits (operands, NULL);
>> }
>> - [(set_attr "adjust_len" "insert_bits")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "adjust_len" "insert_bits")])
>>
>> ;; __builtin_avr_flash_segment
>> @@ -6001,17 +8285,31 @@
>> [(set (match_operand:QI 0 "register_operand" "")
>> (subreg:QI (match_operand:PSI 1 "register_operand" "")
>> 2))
>> - (set (cc0)
>> - (compare (match_dup 0)
>> - (const_int 0)))
>> (set (pc)
>> - (if_then_else (ge (cc0)
>> + (if_then_else (ge (match_dup 0)
>> (const_int 0))
>> (label_ref (match_operand 2 "" ""))
>> (pc)))
>> (set (match_dup 0)
>> (const_int -1))])
>> +(define_insn_and_split "*flash_segment1"
>> + [(set (pc)
>> + (if_then_else (ge (match_operand:QI 0 "register_operand" "")
>> + (const_int 0))
>> + (label_ref (match_operand 1 "" ""))
>> + (pc)))]
>> + ""
>> + "#"
>> + "reload_completed"
>> + [(set (reg:CC REG_CC)
>> + (compare:CC (match_dup 0) (const_int 0)))
>> + (set (pc)
>> + (if_then_else (ge (reg:CC REG_CC) (const_int 0))
>> + (label_ref (match_dup 1))
>> + (pc)))]
>> + "")
>> +
>> (define_expand "flash_segment"
>> [(parallel [(match_operand:QI 0 "register_operand" "")
>> (match_operand:PSI 1 "register_operand" "")])]
>> @@ -6092,29 +8390,59 @@
>> operands[2] = gen_reg_rtx (HImode);
>> })
>> -(define_insn "*parityhi2.libgcc"
>> +(define_insn_and_split "*parityhi2.libgcc_split"
>> [(set (reg:HI 24)
>> (parity:HI (reg:HI 24)))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:HI 24)
>> + (parity:HI (reg:HI 24)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*parityhi2.libgcc"
>> + [(set (reg:HI 24)
>> + (parity:HI (reg:HI 24)))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "%~call __parityhi2"
>> - [(set_attr "type" "xcall")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "xcall")])
>
> Same (type "xcall").
>
>> -(define_insn "*parityqihi2.libgcc"
>> +(define_insn_and_split "*parityqihi2.libgcc_split"
>> [(set (reg:HI 24)
>> (zero_extend:HI (parity:QI (reg:QI 24))))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:HI 24)
>> + (zero_extend:HI (parity:QI (reg:QI 24))))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*parityqihi2.libgcc"
>> + [(set (reg:HI 24)
>> + (zero_extend:HI (parity:QI (reg:QI 24))))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "%~call __parityqi2"
>> - [(set_attr "type" "xcall")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "xcall")])
>
> Same (type "xcall").
>
>> -(define_insn "*paritysihi2.libgcc"
>> +(define_insn_and_split "*paritysihi2.libgcc_split"
>> [(set (reg:HI 24)
>> (truncate:HI (parity:SI (reg:SI 22))))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:HI 24)
>> + (truncate:HI (parity:SI (reg:SI 22))))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*paritysihi2.libgcc"
>> + [(set (reg:HI 24)
>> + (truncate:HI (parity:SI (reg:SI 22))))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "%~call __paritysi2"
>> - [(set_attr "type" "xcall")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "xcall")])
>
> Same (type "xcall").
>
>>
>> ;; Popcount
>> @@ -6143,29 +8471,59 @@
>> operands[2] = gen_reg_rtx (HImode);
>> })
>> -(define_insn "*popcounthi2.libgcc"
>> +(define_insn_and_split "*popcounthi2.libgcc_split"
>> [(set (reg:HI 24)
>> (popcount:HI (reg:HI 24)))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:HI 24)
>> + (popcount:HI (reg:HI 24)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*popcounthi2.libgcc"
>> + [(set (reg:HI 24)
>> + (popcount:HI (reg:HI 24)))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "%~call __popcounthi2"
>> - [(set_attr "type" "xcall")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "xcall")])
>
> Same (type "xcall").
>
>> -(define_insn "*popcountsi2.libgcc"
>> +(define_insn_and_split "*popcountsi2.libgcc_split"
>> [(set (reg:HI 24)
>> (truncate:HI (popcount:SI (reg:SI 22))))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:HI 24)
>> + (truncate:HI (popcount:SI (reg:SI 22))))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*popcountsi2.libgcc"
>> + [(set (reg:HI 24)
>> + (truncate:HI (popcount:SI (reg:SI 22))))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "%~call __popcountsi2"
>> - [(set_attr "type" "xcall")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "xcall")])
>
> Same (type "xcall").
>
>> -(define_insn "*popcountqi2.libgcc"
>> +(define_insn_and_split "*popcountqi2.libgcc_split"
>> [(set (reg:QI 24)
>> (popcount:QI (reg:QI 24)))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:QI 24)
>> + (popcount:QI (reg:QI 24)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*popcountqi2.libgcc"
>> + [(set (reg:QI 24)
>> + (popcount:QI (reg:QI 24)))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "%~call __popcountqi2"
>> - [(set_attr "type" "xcall")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "xcall")])
>
> Same (type "xcall").
>
>> (define_insn_and_split "*popcountqihi2.libgcc"
>> [(set (reg:HI 24)
>> @@ -6204,23 +8562,47 @@
>> operands[2] = gen_reg_rtx (HImode);
>> })
>> -(define_insn "*clzhi2.libgcc"
>> +(define_insn_and_split "*clzhi2.libgcc_split"
>> [(set (reg:HI 24)
>> (clz:HI (reg:HI 24)))
>> (clobber (reg:QI 26))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:HI 24)
>> + (clz:HI (reg:HI 24)))
>> + (clobber (reg:QI 26))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*clzhi2.libgcc"
>> + [(set (reg:HI 24)
>> + (clz:HI (reg:HI 24)))
>> + (clobber (reg:QI 26))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "%~call __clzhi2"
>> - [(set_attr "type" "xcall")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "xcall")])
>
> Same (type "xcall").
>
>> -(define_insn "*clzsihi2.libgcc"
>> +(define_insn_and_split "*clzsihi2.libgcc_split"
>> [(set (reg:HI 24)
>> (truncate:HI (clz:SI (reg:SI 22))))
>> (clobber (reg:QI 26))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:HI 24)
>> + (truncate:HI (clz:SI (reg:SI 22))))
>> + (clobber (reg:QI 26))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*clzsihi2.libgcc"
>> + [(set (reg:HI 24)
>> + (truncate:HI (clz:SI (reg:SI 22))))
>> + (clobber (reg:QI 26))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "%~call __clzsi2"
>> - [(set_attr "type" "xcall")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "xcall")])
>
> Same (type "xcall").
>
>> ;; Count Trailing Zeros
>> @@ -6249,24 +8631,50 @@
>> operands[2] = gen_reg_rtx (HImode);
>> })
>> -(define_insn "*ctzhi2.libgcc"
>> +(define_insn_and_split "*ctzhi2.libgcc_split"
>> [(set (reg:HI 24)
>> (ctz:HI (reg:HI 24)))
>> (clobber (reg:QI 26))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:HI 24)
>> + (ctz:HI (reg:HI 24)))
>> + (clobber (reg:QI 26))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*ctzhi2.libgcc"
>> + [(set (reg:HI 24)
>> + (ctz:HI (reg:HI 24)))
>> + (clobber (reg:QI 26))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "%~call __ctzhi2"
>> - [(set_attr "type" "xcall")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "xcall")])
>
> Same (type "xcall").
>
>> -(define_insn "*ctzsihi2.libgcc"
>> +(define_insn_and_split "*ctzsihi2.libgcc_split"
>> [(set (reg:HI 24)
>> (truncate:HI (ctz:SI (reg:SI 22))))
>> (clobber (reg:QI 22))
>> (clobber (reg:QI 26))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:HI 24)
>> + (truncate:HI (ctz:SI (reg:SI 22))))
>> + (clobber (reg:QI 22))
>> + (clobber (reg:QI 26))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*ctzsihi2.libgcc"
>> + [(set (reg:HI 24)
>> + (truncate:HI (ctz:SI (reg:SI 22))))
>> + (clobber (reg:QI 22))
>> + (clobber (reg:QI 26))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "%~call __ctzsi2"
>> - [(set_attr "type" "xcall")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "xcall")])
>
> Same (type "xcall").
>
>> ;; Find First Set
>> @@ -6295,24 +8703,50 @@
>> operands[2] = gen_reg_rtx (HImode);
>> })
>> -(define_insn "*ffshi2.libgcc"
>> +(define_insn_and_split "*ffshi2.libgcc_split"
>> [(set (reg:HI 24)
>> (ffs:HI (reg:HI 24)))
>> (clobber (reg:QI 26))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:HI 24)
>> + (ffs:HI (reg:HI 24)))
>> + (clobber (reg:QI 26))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*ffshi2.libgcc"
>> + [(set (reg:HI 24)
>> + (ffs:HI (reg:HI 24)))
>> + (clobber (reg:QI 26))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "%~call __ffshi2"
>> - [(set_attr "type" "xcall")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "xcall")])
>
> Same (type "xcall").
>
>> -(define_insn "*ffssihi2.libgcc"
>> +(define_insn_and_split "*ffssihi2.libgcc_split"
>> [(set (reg:HI 24)
>> (truncate:HI (ffs:SI (reg:SI 22))))
>> (clobber (reg:QI 22))
>> (clobber (reg:QI 26))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:HI 24)
>> + (truncate:HI (ffs:SI (reg:SI 22))))
>> + (clobber (reg:QI 22))
>> + (clobber (reg:QI 26))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*ffssihi2.libgcc"
>> + [(set (reg:HI 24)
>> + (truncate:HI (ffs:SI (reg:SI 22))))
>> + (clobber (reg:QI 22))
>> + (clobber (reg:QI 26))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "%~call __ffssi2"
>> - [(set_attr "type" "xcall")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "xcall")])
>
> Same (type "xcall").
>
>> ;; Copysign
>> @@ -6323,8 +8757,7 @@
>> UNSPEC_COPYSIGN))]
>> ""
>> "bst %D2,7\;bld %D0,7"
>> - [(set_attr "length" "2")
>> - (set_attr "cc" "none")])
>> + [(set_attr "length" "2")])
>> ;; Swap Bytes (change byte-endianness)
>> @@ -6336,13 +8769,23 @@
>> (set (match_operand:SI 0 "register_operand" "")
>> (reg:SI 22))])
>> -(define_insn "*bswapsi2.libgcc"
>> +(define_insn_and_split "*bswapsi2.libgcc_split"
>> [(set (reg:SI 22)
>> (bswap:SI (reg:SI 22)))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:SI 22)
>> + (bswap:SI (reg:SI 22)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*bswapsi2.libgcc"
>> + [(set (reg:SI 22)
>> + (bswap:SI (reg:SI 22)))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "%~call __bswapsi2"
>> - [(set_attr "type" "xcall")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "xcall")])
>
> Same (type "xcall").
>
>>
>> ;; CPU instructions
>> @@ -6369,8 +8812,7 @@
>> "@
>> nop
>> rjmp ."
>> - [(set_attr "length" "1")
>> - (set_attr "cc" "none")])
>> + [(set_attr "length" "1")])
>> ;; SLEEP
>> (define_expand "sleep"
>> @@ -6390,8 +8832,7 @@
>> (unspec_volatile:BLK [(match_dup 0)] UNSPECV_MEMORY_BARRIER))]
>> ""
>> "sleep"
>> - [(set_attr "length" "1")
>> - (set_attr "cc" "none")])
>> + [(set_attr "length" "1")])
>> ;; WDR
>> (define_expand "wdr"
>> @@ -6411,8 +8852,7 @@
>> (unspec_volatile:BLK [(match_dup 0)] UNSPECV_MEMORY_BARRIER))]
>> ""
>> "wdr"
>> - [(set_attr "length" "1")
>> - (set_attr "cc" "none")])
>> + [(set_attr "length" "1")])
>> ;; FMUL
>> (define_expand "fmul"
>> @@ -6436,27 +8876,55 @@
>> avr_fix_inputs (operands, 1 << 2, regmask (QImode, 24));
>> })
>> -(define_insn "fmul_insn"
>> +(define_insn_and_split "fmul_insn"
>> [(set (match_operand:HI 0 "register_operand" "=r")
>> (unspec:HI [(match_operand:QI 1 "register_operand" "a")
>> (match_operand:QI 2 "register_operand" "a")]
>> UNSPEC_FMUL))]
>> "AVR_HAVE_MUL"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (unspec:HI [(match_dup 1)
>> + (match_dup 2)]
>> + UNSPEC_FMUL))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*fmul_insn"
>> + [(set (match_operand:HI 0 "register_operand" "=r")
>> + (unspec:HI [(match_operand:QI 1 "register_operand" "a")
>> + (match_operand:QI 2 "register_operand" "a")]
>> + UNSPEC_FMUL))
>> + (clobber (reg:CC REG_CC))]
>> + "AVR_HAVE_MUL && reload_completed"
>> "fmul %1,%2
>> movw %0,r0
>> clr __zero_reg__"
>> - [(set_attr "length" "3")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "length" "3")])
>> -(define_insn "*fmul.call"
>> +(define_insn_and_split "*fmul.call_split"
>> [(set (reg:HI 22)
>> (unspec:HI [(reg:QI 24)
>> (reg:QI 25)] UNSPEC_FMUL))
>> (clobber (reg:HI 24))]
>> "!AVR_HAVE_MUL"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:HI 22)
>> + (unspec:HI [(reg:QI 24)
>> + (reg:QI 25)] UNSPEC_FMUL))
>> + (clobber (reg:HI 24))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*fmul.call"
>> + [(set (reg:HI 22)
>> + (unspec:HI [(reg:QI 24)
>> + (reg:QI 25)] UNSPEC_FMUL))
>> + (clobber (reg:HI 24))
>> + (clobber (reg:CC REG_CC))]
>> + "!AVR_HAVE_MUL && reload_completed"
>> "%~call __fmul"
>> - [(set_attr "type" "xcall")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "xcall")])
>
> Same (type "xcall").
>
>> ;; FMULS
>> (define_expand "fmuls"
>> @@ -6480,27 +8948,55 @@
>> avr_fix_inputs (operands, 1 << 2, regmask (QImode, 24));
>> })
>> -(define_insn "fmuls_insn"
>> +(define_insn_and_split "fmuls_insn"
>> [(set (match_operand:HI 0 "register_operand" "=r")
>> (unspec:HI [(match_operand:QI 1 "register_operand" "a")
>> (match_operand:QI 2 "register_operand" "a")]
>> UNSPEC_FMULS))]
>> "AVR_HAVE_MUL"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (unspec:HI [(match_dup 1)
>> + (match_dup 2)]
>> + UNSPEC_FMULS))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*fmuls_insn"
>> + [(set (match_operand:HI 0 "register_operand" "=r")
>> + (unspec:HI [(match_operand:QI 1 "register_operand" "a")
>> + (match_operand:QI 2 "register_operand" "a")]
>> + UNSPEC_FMULS))
>> + (clobber (reg:CC REG_CC))]
>> + "AVR_HAVE_MUL && reload_completed"
>> "fmuls %1,%2
>> movw %0,r0
>> clr __zero_reg__"
>> - [(set_attr "length" "3")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "length" "3")])
>> -(define_insn "*fmuls.call"
>> +(define_insn_and_split "*fmuls.call_split"
>> [(set (reg:HI 22)
>> (unspec:HI [(reg:QI 24)
>> (reg:QI 25)] UNSPEC_FMULS))
>> (clobber (reg:HI 24))]
>> "!AVR_HAVE_MUL"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:HI 22)
>> + (unspec:HI [(reg:QI 24)
>> + (reg:QI 25)] UNSPEC_FMULS))
>> + (clobber (reg:HI 24))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*fmuls.call"
>> + [(set (reg:HI 22)
>> + (unspec:HI [(reg:QI 24)
>> + (reg:QI 25)] UNSPEC_FMULS))
>> + (clobber (reg:HI 24))
>> + (clobber (reg:CC REG_CC))]
>> + "!AVR_HAVE_MUL && reload_completed"
>> "%~call __fmuls"
>> - [(set_attr "type" "xcall")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "type" "xcall")])
>
> Same (type "xcall").
>
>> ;; FMULSU
>> (define_expand "fmulsu"
>> @@ -6524,27 +9020,56 @@
>> avr_fix_inputs (operands, 1 << 2, regmask (QImode, 24));
>> })
>> -(define_insn "fmulsu_insn"
>> +(define_insn_and_split "fmulsu_insn"
>> [(set (match_operand:HI 0 "register_operand" "=r")
>> (unspec:HI [(match_operand:QI 1 "register_operand" "a")
>> (match_operand:QI 2 "register_operand" "a")]
>> UNSPEC_FMULSU))]
>> "AVR_HAVE_MUL"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (unspec:HI [(match_dup 1)
>> + (match_dup 2)]
>> + UNSPEC_FMULSU))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*fmulsu_insn"
>> + [(set (match_operand:HI 0 "register_operand" "=r")
>> + (unspec:HI [(match_operand:QI 1 "register_operand" "a")
>> + (match_operand:QI 2 "register_operand" "a")]
>> + UNSPEC_FMULSU))
>> + (clobber (reg:CC REG_CC))]
>> + "AVR_HAVE_MUL && reload_completed"
>> "fmulsu %1,%2
>> movw %0,r0
>> clr __zero_reg__"
>> - [(set_attr "length" "3")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "length" "3")])
>> -(define_insn "*fmulsu.call"
>> +(define_insn_and_split "*fmulsu.call_split"
>> [(set (reg:HI 22)
>> (unspec:HI [(reg:QI 24)
>> (reg:QI 25)] UNSPEC_FMULSU))
>> (clobber (reg:HI 24))]
>> "!AVR_HAVE_MUL"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (reg:HI 22)
>> + (unspec:HI [(reg:QI 24)
>> + (reg:QI 25)] UNSPEC_FMULSU))
>> + (clobber (reg:HI 24))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*fmulsu.call"
>> + [(set (reg:HI 22)
>> + (unspec:HI [(reg:QI 24)
>> + (reg:QI 25)] UNSPEC_FMULSU))
>> + (clobber (reg:HI 24))
>> + (clobber (reg:CC REG_CC))]
>> + "!AVR_HAVE_MUL && reload_completed"
>> "%~call __fmulsu"
>> [(set_attr "type" "xcall")
>> - (set_attr "cc" "clobber")])
>> + ])
>
> Same (type "xcall").
>
>>
>> ;; Some combiner patterns dealing with bits.
>> @@ -6561,8 +9086,7 @@
>> "INTVAL(operands[4]) == exact_log2 (~INTVAL(operands[2]) & GET_MODE_MASK (QImode))
>> && INTVAL(operands[4]) == exact_log2 (INTVAL(operands[5]) & GET_MODE_MASK (QImode))"
>> "bst %3,0\;bld %0,%4"
>> - [(set_attr "length" "2")
>> - (set_attr "cc" "none")])
>> + [(set_attr "length" "2")])
>> ;; Move bit $3.0 into bit $0.$4
>> ;; Variation of above. Unfortunately, there is no canonicalized representation
>> @@ -6577,8 +9101,7 @@
>> (match_operand:QI 4 "const_0_to_7_operand" "n"))))]
>> "INTVAL(operands[4]) == exact_log2 (~INTVAL(operands[2]) & GET_MODE_MASK (QImode))"
>> "bst %3,0\;bld %0,%4"
>> - [(set_attr "length" "2")
>> - (set_attr "cc" "none")])
>> + [(set_attr "length" "2")])
>> ;; Move bit $3.0 into bit $0.0.
>> ;; For bit 0, combiner generates slightly different pattern.
>> @@ -6590,8 +9113,7 @@
>> (const_int 1))))]
>> "0 == exact_log2 (~INTVAL(operands[2]) & GET_MODE_MASK (QImode))"
>> "bst %3,0\;bld %0,0"
>> - [(set_attr "length" "2")
>> - (set_attr "cc" "none")])
>> + [(set_attr "length" "2")])
>> ;; Move bit $2.0 into bit $0.7.
>> ;; For bit 7, combiner generates slightly different pattern
>> @@ -6603,8 +9125,7 @@
>> (const_int 7))))]
>> ""
>> "bst %2,0\;bld %0,7"
>> - [(set_attr "length" "2")
>> - (set_attr "cc" "none")])
>> + [(set_attr "length" "2")])
>> ;; Combiner transforms above four pattern into ZERO_EXTRACT if it
>> sees MEM
>> ;; and input/output match. We provide a special pattern for this, because
>> @@ -6620,8 +9141,7 @@
>> cbi %i0,%1
>> sbi %i0,%1
>> sbrc %2,0\;sbi %i0,%1\;sbrs %2,0\;cbi %i0,%1"
>> - [(set_attr "length" "1,1,4")
>> - (set_attr "cc" "none")])
>> + [(set_attr "length" "1,1,4")])
>> (define_insn "*insv.not.io"
>> [(set (zero_extract:QI (mem:QI (match_operand 0 "low_io_address_operand" "i"))
>> @@ -6630,8 +9150,7 @@
>> (not:QI (match_operand:QI 2 "register_operand" "r")))]
>> ""
>> "sbrs %2,0\;sbi %i0,%1\;sbrc %2,0\;cbi %i0,%1"
>> - [(set_attr "length" "4")
>> - (set_attr "cc" "none")])
>> + [(set_attr "length" "4")])
>> ;; The insv expander.
>> ;; We only support 1-bit inserts
>> @@ -6648,20 +9167,34 @@
>> ;; complicated.
>> ;; Insert bit $2.0 into $0.$1
>> -(define_insn "*insv.reg"
>> +(define_insn_and_split "*insv.reg_split"
>> [(set (zero_extract:QI (match_operand:QI 0 "register_operand" "+r,d,d,l,l")
>> (const_int 1)
>> (match_operand:QI 1 "const_0_to_7_operand" "n,n,n,n,n"))
>> (match_operand:QI 2 "nonmemory_operand" "r,L,P,L,P"))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (zero_extract:QI (match_dup 0)
>> + (const_int 1)
>> + (match_dup 1))
>> + (match_dup 2))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*insv.reg"
>> + [(set (zero_extract:QI (match_operand:QI 0 "register_operand" "+r,d,d,l,l")
>> + (const_int 1)
>> + (match_operand:QI 1 "const_0_to_7_operand" "n,n,n,n,n"))
>> + (match_operand:QI 2 "nonmemory_operand" "r,L,P,L,P"))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "@
>> bst %2,0\;bld %0,%1
>> andi %0,lo8(~(1<<%1))
>> ori %0,lo8(1<<%1)
>> clt\;bld %0,%1
>> set\;bld %0,%1"
>> - [(set_attr "length" "2,1,1,2,2")
>> - (set_attr "cc" "none,set_zn,set_zn,none,none")])
>> + [(set_attr "length" "2,1,1,2,2")])
>> ;; Insert bit $2.$3 into $0.$1
>> (define_insn "*insv.extract"
>> @@ -6673,8 +9206,7 @@
>> (match_operand:QI 3 "const_0_to_7_operand" "n")))]
>> ""
>> "bst %2,%3\;bld %0,%1"
>> - [(set_attr "length" "2")
>> - (set_attr "cc" "none")])
>> + [(set_attr "length" "2")])
>> ;; Insert bit $2.$3 into $0.$1
>> (define_insn "*insv.shiftrt"
>> @@ -6685,67 +9217,128 @@
>> (match_operand:QI 3 "const_0_to_7_operand" "n")))]
>> ""
>> "bst %2,%3\;bld %0,%1"
>> - [(set_attr "length" "2")
>> - (set_attr "cc" "none")])
>> + [(set_attr "length" "2")])
>> ;; Same, but with a NOT inverting the source bit.
>> ;; Insert bit ~$2.$3 into $0.$1
>> -(define_insn "*insv.not-shiftrt"
>> +(define_insn_and_split "*insv.not-shiftrt_split"
>> [(set (zero_extract:QI (match_operand:QI 0 "register_operand" "+r")
>> (const_int 1)
>> (match_operand:QI 1 "const_0_to_7_operand" "n"))
>> (not:QI (any_shiftrt:QI (match_operand:QI 2 "register_operand" "r")
>> (match_operand:QI 3 "const_0_to_7_operand" "n"))))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (zero_extract:QI (match_dup 0)
>> + (const_int 1)
>> + (match_dup 1))
>> + (not:QI (any_shiftrt:QI (match_dup 2)
>> + (match_dup 3))))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*insv.not-shiftrt"
>> + [(set (zero_extract:QI (match_operand:QI 0 "register_operand" "+r")
>> + (const_int 1)
>> + (match_operand:QI 1 "const_0_to_7_operand" "n"))
>> + (not:QI (any_shiftrt:QI (match_operand:QI 2 "register_operand" "r")
>> + (match_operand:QI 3 "const_0_to_7_operand" "n"))))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> return avr_out_insert_notbit (insn, operands, NULL_RTX, NULL);
>> }
>> - [(set_attr "adjust_len" "insv_notbit")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "adjust_len" "insv_notbit")])
>> ;; Insert bit ~$2.0 into $0.$1
>> -(define_insn "*insv.xor1-bit.0"
>> +(define_insn_and_split "*insv.xor1-bit.0_split"
>> [(set (zero_extract:QI (match_operand:QI 0 "register_operand" "+r")
>> (const_int 1)
>> (match_operand:QI 1 "const_0_to_7_operand" "n"))
>> (xor:QI (match_operand:QI 2 "register_operand" "r")
>> (const_int 1)))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (zero_extract:QI (match_dup 0)
>> + (const_int 1)
>> + (match_dup 1))
>> + (xor:QI (match_dup 2)
>> + (const_int 1)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*insv.xor1-bit.0"
>> + [(set (zero_extract:QI (match_operand:QI 0 "register_operand" "+r")
>> + (const_int 1)
>> + (match_operand:QI 1 "const_0_to_7_operand" "n"))
>> + (xor:QI (match_operand:QI 2 "register_operand" "r")
>> + (const_int 1)))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> return avr_out_insert_notbit (insn, operands, const0_rtx, NULL);
>> }
>> - [(set_attr "adjust_len" "insv_notbit_0")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "adjust_len" "insv_notbit_0")])
>> ;; Insert bit ~$2.0 into $0.$1
>> -(define_insn "*insv.not-bit.0"
>> +(define_insn_and_split "*insv.not-bit.0_split"
>> [(set (zero_extract:QI (match_operand:QI 0 "register_operand" "+r")
>> (const_int 1)
>> (match_operand:QI 1 "const_0_to_7_operand" "n"))
>> (not:QI (match_operand:QI 2 "register_operand" "r")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (zero_extract:QI (match_dup 0)
>> + (const_int 1)
>> + (match_dup 1))
>> + (not:QI (match_dup 2)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*insv.not-bit.0"
>> + [(set (zero_extract:QI (match_operand:QI 0 "register_operand" "+r")
>> + (const_int 1)
>> + (match_operand:QI 1 "const_0_to_7_operand" "n"))
>> + (not:QI (match_operand:QI 2 "register_operand" "r")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> return avr_out_insert_notbit (insn, operands, const0_rtx, NULL);
>> }
>> - [(set_attr "adjust_len" "insv_notbit_0")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "adjust_len" "insv_notbit_0")])
>> ;; Insert bit ~$2.7 into $0.$1
>> -(define_insn "*insv.not-bit.7"
>> +(define_insn_and_split "*insv.not-bit.7_split"
>> [(set (zero_extract:QI (match_operand:QI 0 "register_operand" "+r")
>> (const_int 1)
>> (match_operand:QI 1 "const_0_to_7_operand" "n"))
>> (ge:QI (match_operand:QI 2 "register_operand" "r")
>> (const_int 0)))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (zero_extract:QI (match_dup 0)
>> + (const_int 1)
>> + (match_dup 1))
>> + (ge:QI (match_dup 2)
>> + (const_int 0)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*insv.not-bit.7"
>> + [(set (zero_extract:QI (match_operand:QI 0 "register_operand" "+r")
>> + (const_int 1)
>> + (match_operand:QI 1 "const_0_to_7_operand" "n"))
>> + (ge:QI (match_operand:QI 2 "register_operand" "r")
>> + (const_int 0)))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> {
>> return avr_out_insert_notbit (insn, operands, GEN_INT (7), NULL);
>> }
>> - [(set_attr "adjust_len" "insv_notbit_7")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "adjust_len" "insv_notbit_7")])
>> ;; Insert bit ~$2.$3 into $0.$1
>> -(define_insn "*insv.xor-extract"
>> +(define_insn_and_split "*insv.xor-extract_split"
>> [(set (zero_extract:QI (match_operand:QI 0 "register_operand" "+r")
>> (const_int 1)
>> (match_operand:QI 1 "const_0_to_7_operand" "n"))
>> @@ -6754,11 +9347,31 @@
>> (const_int 1)
>> (match_operand:QI 3 "const_0_to_7_operand" "n")))]
>> "INTVAL (operands[4]) & (1 << INTVAL (operands[3]))"
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (zero_extract:QI (match_dup 0)
>> + (const_int 1)
>> + (match_dup 1))
>> + (any_extract:QI (xor:QI (match_dup 2)
>> + (match_dup 4))
>> + (const_int 1)
>> + (match_dup 3)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*insv.xor-extract"
>> + [(set (zero_extract:QI (match_operand:QI 0 "register_operand" "+r")
>> + (const_int 1)
>> + (match_operand:QI 1 "const_0_to_7_operand" "n"))
>> + (any_extract:QI (xor:QI (match_operand:QI 2 "register_operand" "r")
>> + (match_operand:QI 4 "const_int_operand" "n"))
>> + (const_int 1)
>> + (match_operand:QI 3 "const_0_to_7_operand" "n")))
>> + (clobber (reg:CC REG_CC))]
>> + "INTVAL (operands[4]) & (1 << INTVAL (operands[3])) && reload_completed"
>> {
>> return avr_out_insert_notbit (insn, operands, NULL_RTX, NULL);
>> }
>> - [(set_attr "adjust_len" "insv_notbit")
>> - (set_attr "cc" "clobber")])
>> + [(set_attr "adjust_len" "insv_notbit")])
>>
>> ;; Some combine patterns that try to fix bad code when a value is composed
>> @@ -6887,20 +9500,34 @@
>> (match_operand:QI 2 "const1_operand" "")
>> (match_operand:QI 3 "const_0_to_7_operand" "")))])
>> -(define_insn "*extzv"
>> +(define_insn_and_split "*extzv_split"
>> [(set (match_operand:QI 0 "register_operand" "=*d,*d,*d,*d,r")
>> (zero_extract:QI (match_operand:QI 1 "register_operand" "0,r,0,0,r")
>> (const_int 1)
>> (match_operand:QI 2 "const_0_to_7_operand" "L,L,P,C04,n")))]
>> ""
>> + "#"
>> + "&& reload_completed"
>> + [(parallel [(set (match_dup 0)
>> + (zero_extract:QI (match_dup 1)
>> + (const_int 1)
>> + (match_dup 2)))
>> + (clobber (reg:CC REG_CC))])])
>> +
>> +(define_insn "*extzv"
>> + [(set (match_operand:QI 0 "register_operand" "=*d,*d,*d,*d,r")
>> + (zero_extract:QI (match_operand:QI 1 "register_operand" "0,r,0,0,r")
>> + (const_int 1)
>> + (match_operand:QI 2 "const_0_to_7_operand" "L,L,P,C04,n")))
>> + (clobber (reg:CC REG_CC))]
>> + "reload_completed"
>> "@
>> andi %0,1
>> mov %0,%1\;andi %0,1
>> lsr %0\;andi %0,1
>> swap %0\;andi %0,1
>> bst %1,%2\;clr %0\;bld %0,0"
>> - [(set_attr "length" "1,2,2,2,3")
>> - (set_attr "cc" "set_zn,set_zn,set_zn,set_zn,clobber")])
>> + [(set_attr "length" "1,2,2,2,3")])
>> (define_insn_and_split "*extzv.qihi1"
>> [(set (match_operand:HI 0 "register_operand" "=r")
>
> Finally, some general remarks:
The work on my github branch was not complete - I'd blindly followed
whatever the CC0 Transition wiki mentioned (the first three steps of
case #2), and fixed any regression fallout (for ATmega128).
I intend to try out a define_subst/early clobber of reg_cc based
approach (inspired by the cris port) and see if that can help avoid the
proliferation of define_insn_and_splits. Will update how that works out.
>
> 1) Most inline asm will now clobber cc. Is this handled automatically,
> or why is there no addition to target asm clobbers? There is already
> code out there that clobbers "cc", hence that should still work / be
> recognized.
The wiki suggests using TARGET_MD_ASM_ADJUST hook to do that, that is
not yet done.
>
> 2) We just saw 100reds of insns being dublicated, basically the whole
> machine description except for the few insns that leave cc alone.
> Isn't is possible to use define subst for the bulk of the insns and
> get a neat code that's better to grasp and to maintain?
> After all it's just appending a clobber of reg_cc, and in the current
> proposal almost 50% of the backend is just redundent repetitions of
> previous insns.
>
> 3) Some of the insns are emit after reload, in particular pro- and
> epilogue stuff. There's no need to be more contrived than needed,
> just clobber reg_cc. That's all.
>
> 4) Many insns don't have reloads and don't need to be turned into a
> splitter + yet another insns, it should be all right to clobber
> reg_cc from the very start. Or am I missing something? I think
> I marked all places, but it should be easy enough to spot them.
>
> 5) Combine now sees cbranch instead of compare as outer insn, and
> hence will query respective costs. I'd expect to see some extensions
> to cost hooks to adjust for that?
>
> You can have a look at the combine dumps to see whether respective
> patterns are still generated, or if they are rejected. (No test case
> will tell you that, you must know what you are doing).
>
> 6) Is the casesi pass and if-else-tree optimization still functional?
> They won't complain if they see something unexpexted.
Will check those.
>
> 7) Attribute cc is no more used. It should be removed.
>
> 8) All the patch does is to postpone cbranch and to cc clobber any other
> insn that touches cc. At least the effect of the subtractions should
> be modelled. That's commonly used in loops. avr_out_plus currently
> models cc0 and works on it's effect on the fly.
>
> This is more difficult and contrived with CCmode, so you'll have to
> come up with something smart...
>
> I agree that not all non-clobber-cc insns need to be modelled,
> but subtractions are crucial.
Yes, that is not yet done. Noted.
>
> 9) For such massive changes, it's highly recommended to test against
> all the major ISAs we have:
> * ATmega128 (2-byte pc, jmp) as you have already done
> * ATmega8 (2-byte pc, rjmp)
> * ATxmega128A3 (Xmega, 3-byte pc)
> * ATtiny40 (tiny, no MUL)
>
> avrtest brings board descriptions for all of them, and RAM shortage is
> not that of an issue like for real devices because you can supply more
> RAM than for a real device.
>
> I know this might seem tedious, in particular for the small devices
> where many tests fail due to resource shortage. But better than
> nothing; look out for ICEs in particular and wrong code fails.
>
> And a final question: Why use (clobber (reg:CC REG_CC)). Doesn't that
> mean that only specific flags (CCmode bits of SREG) are clobbered?
AFAICT, modes other than CCmode are required only when adding support for
setting specific condition code bits.
>
> Johann
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