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Pretty much as the subject says. This is a prerequisite for fixing
target/46329.
I've used the mode argument instead of GET_MODE where it seems appropriate.
In the end, the only GET_MODEs I kept were in explicit checks for VOIDmode.
E.g.:
/* double integer constants are ok. */
if (mode == VOIDmode || mode == DImode)
return TRUE;
These checks are a little dubious, because they accept some TImode
constants as well if TI is supported. However, I'd like to leave
any behavioural changes to TImode constants outside this patch and
let target maintainers do whatever they think is best.
The patch applies on top of:
http://gcc.gnu.org/ml/gcc-patches/2011-04/msg00194.html
and was tested in the same way. OK to install?
Richard
gcc/
* target.def (legitimate_constant_p): New hook.
* doc/tm.texi.in (LEGITIMATE_CONSTANT_P): Replace with...
(TARGET_LEGITIMATE_CONSTANT_P): ...this.
* doc/tm.texi: Regenerate.
* hooks.h (hook_bool_mode_rtx_true): Declare.
* hooks.c (hook_bool_mode_rtx_true): Define.
* system.h (LEGITIMATE_CONSTANT_P): Poison.
* calls.c (precompute_register_parameters): Replace uses of
LEGITIMATE_CONSTANT_P with targetm.legitimate_constant_p.
(emit_library_call_value_1): Likewise.
* expr.c (move_block_to_reg, can_store_by_pieces, emit_move_insn)
(compress_float_constant, emit_push_insn, expand_expr_real_1): Likewise.
* ira-costs.c (scan_one_insn): Likewise.
* recog.c (general_operand, immediate_operand): Likewise.
* reload.c (find_reloads_toplev, find_reloads_address_part): Likewise.
* reload1.c (init_eliminable_invariants): Likewise.
* config/alpha/alpha-protos.h (alpha_legitimate_constant_p): Add a
mode argument.
* config/alpha/alpha.h (LEGITIMATE_CONSTANT_P): Delete.
* config/alpha/alpha.c (alpha_legitimate_constant_p): Add a mode
argument.
(TARGET_LEGITIMATE_CONSTANT_P): Define.
* config/alpha/predicates.md (input_operand): Update call to
alpha_legitimate_constant_p.
* config/arm/arm-protos.h (arm_cannot_force_const_mem): Delete.
* config/arm/arm.h (ARM_LEGITIMATE_CONSTANT_P): Likewise.
(THUMB_LEGITIMATE_CONSTANT_P, LEGITIMATE_CONSTANT_P): Likewise.
* config/arm/arm.c (TARGET_LEGITIMATE_CONSTANT_P): Define.
(arm_legitimate_constant_p_1, thumb_legitimate_constant_p)
(arm_legitimate_constant_p): New functions.
(arm_cannot_force_const_mem): Make static.
* config/avr/avr.h (LEGITIMATE_CONSTANT_P): Delete.
* config/bfin/bfin-protos.h (bfin_legitimate_constant_p): Delete.
* config/bfin/bfin.h (LEGITIMATE_CONSTANT_P): Delete.
* config/bfin/bfin.c (expand_move): Use targetm.legitimate_constant_p
instead of bfin_legitimate_constant_p.
(bfin_legitimate_constant_p): Make static. Add a mode argument.
(TARGET_LEGITIMATE_CONSTANT_P): Define.
* config/cris/cris.h (LEGITIMATE_CONSTANT_P): Delete.
* config/fr30/fr30.h (LEGITIMATE_CONSTANT_P): Delete.
* config/frv/frv-protos.h (frv_legitimate_constant_p): Delete.
* config/frv/frv.h (LEGITIMATE_CONSTANT_P): Delete.
* config/frv/frv.c (TARGET_LEGITIMATE_CONSTANT_P): Define.
(frv_legitimate_constant_p): Make static. Add a mode argument.
* config/h8300/h8300-protos.h (h8300_legitimate_constant_p): Delete.
* config/h8300/h8300.h (LEGITIMATE_CONSTANT_P): Likewise.
* config/h8300/h8300.c (h8300_legitimate_constant_p): Likewise.
* config/i386/i386-protos.h (legitimate_constant_p): Delete.
* config/i386/i386.h (LEGITIMATE_CONSTANT_P): Likewise.
* config/i386/i386.c (legitimate_constant_p): Rename to...
(ix86_legitimate_constant_p): ...this. Make static. Add a mode
argument.
(ix86_cannot_force_const_mem): Update accordingly.
(ix86_legitimate_address_p): Likewise.
(TARGET_LEGITIMATE_CONSTANT_P): Define.
* config/i386/i386.md: Update commentary.
* config/ia64/ia64-protos.h (ia64_legitimate_constant_p): Delete.
* config/ia64/ia64.h (LEGITIMATE_CONSTANT_P): Likewise.
* config/ia64/ia64.c (TARGET_LEGITIMATE_CONSTANT_P): Define.
(ia64_legitimate_constant_p): Make static. Add a mode argument.
* config/iq2000/iq2000.h (LEGITIMATE_CONSTANT_P): Delete.
* config/lm32/lm32-protos.h (lm32_legitimate_constant_p): Delete.
* config/lm32/lm32.h (LEGITIMATE_CONSTANT_P): Likewise.
* config/lm32/lm32.c (TARGET_LEGITIMATE_CONSTANT_P): Define.
(lm32_legitimate_constant_p): Make static. Add a mode argument.
* config/m32c/m32c-protos.h (m32c_legitimate_constant_p): Delete.
* config/m32c/m32c.h (LEGITIMATE_CONSTANT_P): Likewise.
* config/m32c/m32c.c (m32c_legitimate_constant_p): Likewise.
* config/m32r/m32r.h (LEGITIMATE_CONSTANT_P): Delete.
* config/m32r/m32r.c (TARGET_LEGITIMATE_CONSTANT_P): Define.
(m32r_legitimate_constant_p): New function.
* config/m68k/m68k-protos.h (m68k_legitimate_constant_p): Declare.
* config/m68k/m68k.h (CONSTANT_ADDRESS_P): Call it instead of
LEGITIMATE_CONSTANT_P.
(LEGITIMATE_CONSTANT_P): Delete.
* config/m68k/m68k.c (m68k_expand_prologue): Call
m68k_legitimate_constant_p instead of LEGITIMATE_CONSTANT_P.
(m68k_legitimate_constant_p): New function.
* config/m68k/m68k.md: Update comments.
* config/mcore/mcore.h (LEGITIMATE_CONSTANT_P): Delete.
* config/mcore/mcore.c (TARGET_LEGITIMATE_CONSTANT_P): Define.
(mcore_legitimate_constant_p): New function.
* config/mep/mep-protos.h (mep_legitimate_constant_p): Delete.
* config/mep/mep.h (LEGITIMATE_CONSTANT_P): Likewise.
* config/mep/mep.c (mep_legitimate_constant_p): Make static.
Add a mode argument.
(mep_legitimate_address): Update accordingly.
(TARGET_LEGITIMATE_CONSTANT_P): Define.
* config/microblaze/microblaze-protos.h (microblaze_const_double_ok):
Delete.
* config/microblaze/microblaze.h (LEGITIMATE_CONSTANT_P): Likewise.
* config/microblaze/microblaze.c (microblaze_const_double_ok): Make
static. Check OP's mode for VOIDmode.
(microblaze_legitimate_constant_p): New function.
(TARGET_LEGITIMATE_CONSTANT_P): Define.
* config/mips/mips.h (LEGITIMATE_CONSTANT_P): Delete.
* config/mips/mips.c (mips_legitimate_constant_p): New function.
(mips_cannot_force_const_mem): Use it instead of LEGITIMATE_CONSTANT_P.
(TARGET_LEGITIMATE_CONSTANT_P): Define.
* config/mips/predicates.md: Update comments.
* config/mmix/mmix-protos.h (mmix_legitimate_constant_p): Delete.
* config/mmix/mmix.h (LEGITIMATE_CONSTANT_P): Likewise.
* config/mmix/mmix.c (TARGET_LEGITIMATE_CONSTANT_P): Define.
(mmix_legitimate_constant_p): Make static, return a bool, and take
a mode argument.
(mmix_print_operand_address): Update accordingly.
* config/mn10300/mn10300-protos.h (mn10300_legitimate_constant_p):
Delete.
* config/mn10300/mn10300.h (LEGITIMATE_CONSTANT_P): Likewise.
* config/mn10300/mn10300.c (mn10300_legitimate_constant_p):
Make static. Add a mode argument.
(TARGET_LEGITIMATE_CONSTANT_P): Define.
* config/moxie/moxie.h (LEGITIMATE_CONSTANT_P): Delete.
* config/pa/pa.h (LEGITIMATE_CONSTANT_P): Delete.
* config/pa/pa.c (TARGET_LEGITIMATE_CONSTANT_P): Define.
(pa_legitimate_constant_p): New function.
* config/picochip/picochip.h (LEGITIMATE_CONSTANT_P): Delete.
* config/pdp11/pdp11.h (LEGITIMATE_CONSTANT_P): Delete.
* config/pdp11/pdp11.c (TARGET_LEGITIMATE_CONSTANT_P): Define.
(pdp11_legitimate_constant_p): New function.
* config/rs6000/rs6000.h (LEGITIMATE_CONSTANT_P): Delete.
* config/rs6000/rs6000.c (TARGET_LEGITIMATE_CONSTANT_P): Define.
(rs6000_legitimate_constant_p): New function.
* config/rx/rx-protos.h (rx_is_legitimate_constant): Replace with...
(rx_legitimate_constant_p): ...this.
* config/rx/rx.h (LEGITIMATE_CONSTANT_P): Delete.
* config/rx/rx.c (rx_is_legitimate_constant): Replace with...
(rx_legitimate_constant_p): ...this.
(TARGET_LEGITIMATE_CONSTANT_P): Define.
* config/rx/rx.md (mov<register_modes:mode>): Update accordingly.
* config/s390/s390-protos.h (legitimate_constant_p): Delete.
* config/s390/s390.h (LEGITIMATE_CONSTANT_P): Likewise.
* config/s390/s390.c (legitimate_constant_p): Rename to...
(s390_legitimate_constant_p): ...this. Make static, return a bool,
and add a mode argument.
(TARGET_LEGITIMATE_CONSTANT_P): Define.
* config/score/score.h (LEGITIMATE_CONSTANT_P): Delete.
* config/sh/sh.h (LEGITIMATE_CONSTANT_P): Delete.
* config/sh/sh.c (TARGET_LEGITIMATE_CONSTANT_P): Define.
(sh_legitimate_constant_p): New function.
* config/sparc/sparc-protos.h (legitimate_constant_p): Delete.
* config/sparc/sparc.h (LEGITIMATE_CONSTANT_P): Delete.
* config/sparc/sparc.c (TARGET_LEGITIMATE_CONSTANT_P): Define.
(legitimate_constant_p): Rename to...
(sparc_legitimate_constant_p): ...this. Make static. Add a mode
argument.
(constant_address_p): Update accordingly.
* config/spu/spu-protos.h (spu_legitimate_constant_p): Add a mode
argument and return a bool.
* config/spu/spu.h (LEGITIMATE_CONSTANT_P): Delete.
* config/spu/spu.c (TARGET_LEGITIMATE_CONSTANT_P): Define.
(spu_legitimate_constant_p): Add a mode argument and return a bool.
(spu_rtx_costs): Update accordingly.
* config/spu/predicates.md (vec_imm_operand): Likewise.
* config/stormy16/stormy16.h (LEGITIMATE_CONSTANT_P): Delete.
* config/v850/v850.h (LEGITIMATE_CONSTANT_P): Delete.
* config/v850/v850.c (v850_legitimate_constant_p): New function.
(TARGET_LEGITIMATE_CONSTANT_P): Define.
* config/vax/vax-protos.h (legitimate_constant_p): Delete.
* config/vax/vax.h (LEGITIMATE_CONSTANT_P): Likewise.
* config/vax/vax.c (legitimate_constant_p): Likewise.
* config/xtensa/xtensa.h (LEGITIMATE_CONSTANT_P): Delete.
* config/xtensa/xtensa.c (TARGET_LEGITIMATE_CONSTANT_P): Define.
(xtensa_legitimate_constant_p): New function.
Attachment:
legitimate-constant-p-mode.diff.gz
Description: GNU Zip compressed data
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