Force the use of stack_pointer_offset in computing the frame size.
By exporting padding[012] and to_allocate from ix86_compute_frame_layout,
we encouraged re-computation of the size of the local frame. All of the
truly relevant offsets are now exported directly, and should be compared
against directly.
Describe unwinding for realigned frames explicitly.
We had been relying on some extremely fragile code within
dwarf2out in order to guess what to do with aligned stack
frames, which broke when we decided to perform the stores
to the aligned stack frame via EBP instead of ESP.
Instead, emit the appropriate unwinding instructions from
the backend. This requires adding a new reg-note in order
to describe a register save at an arbitrary address.
Move SP/FP offsets into the global state; update them everywhere
we currently handle CFA offsets.
Use that global state to choose base registers and offsets for
the register saves and restores.
There is a bug fix contained herein, whereby r11 could be clobbered
along an indirect sibcall path when the stack frame is very large (>2GB).
The emit_restore_{sse_,}regs_using_mov functions didn't handle this
case, but pro_epilogue_adjust_stack does.
Remove duplicate definition of TARGET_64BIT_MS_ABI.
The definition in cygming.h differed from the definition in i386.h in
that the predicate was true for 32-bit when outside of any function.
Which (a) seems wrong and (b) never matters because the predicate is
only tested in terms of REGPARM and RED_ZONE, both of which are tied
to functions.
Eliminate most of the conditional compilation from dwarf2out.c.
Trying to reduce the amount of code compiled when dwarf2 debug
info and/or dwarf2 unwind info are disabled results in a twisted
mess. Don't bother -- just build it all even if it's not going
to be used.
Janus Weil [Wed, 4 Aug 2010 19:49:19 +0000 (21:49 +0200)]
re PR fortran/42207 ([OOP] Compile-time errors on typed allocation and pointer function result assignment)
2010-08-04 Janus Weil <janus@gcc.gnu.org>
PR fortran/42207
PR fortran/44064
PR fortran/44065
* class.c (gfc_find_derived_vtab): Do not generate vtabs for class
container types. Do not artificially increase refs. Commit symbols one
by one.
* interface.c (compare_parameter): Make sure vtabs are present before
generating module variables.
* resolve.c (resolve_allocate_expr): Ditto.
Arnaud Charlet [Wed, 4 Aug 2010 15:50:10 +0000 (15:50 +0000)]
c-ada-spec.c (dump_ada_template): Mark underlying instance type as visited.
* c-ada-spec.c (dump_ada_template): Mark underlying instance type as
visited.
(dump_generic_ada_node): Code clean up. Use TREE_VISITED flag to
decide whether a type has already been declared/seen.
Do not go to the original type.
(dump_nested_types): New parameter forward.
Generate forward declaration if needed and mark type as visited.
(print_ada_declaration): Call dump_nested_types if not already done.
Mark types as visited.
Uros Bizjak [Wed, 4 Aug 2010 14:19:01 +0000 (16:19 +0200)]
re PR c++/44641 (Generated constructors and destructors get wrong debug location when a typedef uses a forward declaration of the type before the definition)
PR c++/44641
* lib/scanasm.exp (dg-function-on-line): Expand regex to also ignore
.frame and .mask assembler directives.
Tobias Burnus [Wed, 4 Aug 2010 11:51:32 +0000 (13:51 +0200)]
re PR fortran/44857 (ICE in output_constructor_regular_field, at varasm.c:4996)
2010-08-04 Tobias Burnus <burnus@net-b.de>
PR fortran/44857
* resolve.c (resolve_structure_cons): Fix handling of
initialization structcture constructors with character
elements of the wrong length.
* array.c (gfc_check_iter_variable): Add NULL check.
(gfc_resolve_character_array_constructor): Also truncate
character length.
Eric Botcazou [Wed, 4 Aug 2010 06:49:08 +0000 (06:49 +0000)]
decl.c: Do not undefine IN_GCC_FRONTEND and do not include expr.h.
* gcc-interface/decl.c: Do not undefine IN_GCC_FRONTEND and do not
include expr.h.
(gnat_to_gnu_entity) <object>: Force address of -1 at the tree level
for the debug-only entity.
* gcc-interface/Make-lang.in (ada/decl.o): Adjust dependencies.
Bernd Schmidt [Tue, 3 Aug 2010 23:48:52 +0000 (23:48 +0000)]
simplify-rtx.c (simplify_binary_operation_1): Try to simplify away NEG as operand of a MULT by merging it with the other operand.
* simplify-rtx.c (simplify_binary_operation_1): Try to simplify away
NEG as operand of a MULT by merging it with the other operand.
* combine.c (make_compound_operation): Use trunc_int_for_mode when
generating a MULT with constant. Canonicalize PLUS and MINUS involving
MULT.
* config/arm/constraints.md (M): Examine only 32 bits of a
HOST_WIDE_INT.
* config/arm/predicates.md (power_of_two_operand): Likewise.
Thomas Koenig [Tue, 3 Aug 2010 22:02:30 +0000 (22:02 +0000)]
re PR fortran/45159 (Unnecessary temporaries)
2010-08-03 Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/45159
* dependency.c (gfc_deb_compare_expr): Remove any integer
conversion functions to larger types from both arguments.
Remove handling these functions futher down.
2010-08-03 Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/45159
* gfortran.dg/dependency_30.f90: New test.
* ipa-split.c (struct split_point): Add split_part_set_retval.
(find_retval): Forward declare.
(test_nonssa_use, mark_nonssa_use): Special case return by reference.
(consider_split): Compute current->split_part_set_retval.
(visit_bb): Do not look into return value.
(split_function): Handle !split_part_set_retval
Uros Bizjak [Tue, 3 Aug 2010 09:25:22 +0000 (11:25 +0200)]
i386.h (ix86_compare_op0, [...]): Remove.
* config/i386/i386.h (ix86_compare_op0, ix86_compare_op1): Remove.
* config/i386/i386.c (ix86_compare_op0, ix86_compare_op1): Remove.
(ix86_expand_branch): Add op0 and op1 arguments. Do not access
ix86_compare_op0 and ix86_compare_op1, use op0 and op1 instead.
Update calls to ix86_expand_compare and ix86_expand_branch.
(ix86_expand_setcc): Add op0 and op1 arguments. Update calls to
ix86_expand_compare.
(ix86_expand_compare): Add op0 and op1 arguments. Do not access
ix86_compare_op0 and ix86_compare_op1, use op0 and op1 instead.
Make static.
(ix86_expand_carry_flag_compare): Do not set ix86_compare_op0
and ix86_compare_op1. Update calls to ix86_expand_compare.
(ix86_expand_int_movcc): Ditto.
(ix86_expand_fp_movcc): Ditto. Update calls to ix86_expand_setcc.
* config/i386/i386-protos.h (ix86_expand_branch): Update prototype.
(ix86_expand_setcc): Ditto.
(ix86_expand_compare): Remove prototype.
* config/i386/i386.md (cbranch<SDWIM:mode>4): Do not set
ix86_compare_op0 and ix86_compare_op1. Update calls
to ix86_expand_branch to directly pass operands[1] and operands[2].
(cbranchxf4): Ditto.
(cbranch<MODEF:mode>4): Ditto.
(cbranchcc4): Ditto.
(cstore<SWIM:mode>4): Do not set ix86_compare_op0 and ix86_compare_op1.
Update calls to ix86_expand_setcc to directly pass operands[2] and
operands[3].
(cstorexf4): Ditto.
(cstore<MODEF:mode>4): Ditto.
(cstorecc4): Ditto.
Thomas Koenig [Mon, 2 Aug 2010 16:53:51 +0000 (16:53 +0000)]
re PR fortran/36854 ([meta-bug] fortran front-end optimization)
2010-08-02 Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/36854
* dependency.h: Add prototype for gfc_are_identical_variables.
* frontend-passes.c: Include depencency.h.
(optimimize_equality): Use gfc_are_identical_variables.
* dependency.c (identical_array_ref): New function.
(gfc_are_identical_variables): New function.
(gfc_deb_compare_expr): Use gfc_are_identical_variables.
* dependency.c (gfc_check_section_vs_section). Rename gfc_
prefix from statc function.
(check_section_vs_section): Change arguments to gfc_array_ref,
adjust function body accordingly.
2010-08-02 Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/36854
* gfortran.dg/character_comparison_2.f90: New test.
* gfortran.dg/character_comparison_3.f90: New test.
* gfortran.dg/dependency_28.f90: New test.
Bernd Schmidt [Mon, 2 Aug 2010 10:06:47 +0000 (10:06 +0000)]
re PR target/40457 (use stm and ldm to access consecutive memory words)
PR target/40457
* config/arm/arm.h (arm_regs_in_sequence): Declare.
* config/arm/arm-protos.h (emit_ldm_seq, emit_stm_seq,
load_multiple_sequence, store_multiple_sequence): Delete
declarations.
(arm_gen_load_multiple, arm_gen_store_multiple): Adjust
declarations.
* config/arm/ldmstm.md: New file.
* config/arm/arm.c (arm_regs_in_sequence): New array.
(load_multiple_sequence): Now static. New args SAVED_ORDER,
CHECK_REGS. All callers changed.
If SAVED_ORDER is nonnull, copy the computed order into it.
If CHECK_REGS is false, don't sort REGS. Handle Thumb mode.
(store_multiple_sequence): Now static. New args NOPS_TOTAL,
SAVED_ORDER, REG_RTXS and CHECK_REGS. All callers changed.
If SAVED_ORDER is nonnull, copy the computed order into it.
If CHECK_REGS is false, don't sort REGS. Set up REG_RTXS just
like REGS. Handle Thumb mode.
(arm_gen_load_multiple_1): New function, broken out of
arm_gen_load_multiple.
(arm_gen_store_multiple_1): New function, broken out of
arm_gen_store_multiple.
(arm_gen_multiple_op): New function, with code from
arm_gen_load_multiple and arm_gen_store_multiple moved here.
(arm_gen_load_multiple, arm_gen_store_multiple): Now just
wrappers around arm_gen_multiple_op. Remove argument UP, all callers
changed.
(gen_ldm_seq, gen_stm_seq, gen_const_stm_seq): New functions.
* config/arm/predicates.md (commutative_binary_operator): New.
(load_multiple_operation, store_multiple_operation): Handle more
variants of these patterns with different starting offsets. Handle
Thumb-1.
* config/arm/arm.md: Include "ldmstm.md".
(ldmsi_postinc4, ldmsi_postinc4_thumb1, ldmsi_postinc3, ldmsi_postinc2,
ldmsi4, ldmsi3, ldmsi2, stmsi_postinc4, stmsi_postinc4_thumb1,
stmsi_postinc3, stmsi_postinc2, stmsi4, stmsi3, stmsi2 and related
peepholes): Delete.
* config/arm/ldmstm.md: New file.
* config/arm/arm-ldmstm.ml: New file.
testsuite/
PR target/40457
* gcc.target/arm/pr40457-1.c: New test.
* gcc.target/arm/pr40457-2.c: New test.
Bernd Schmidt [Mon, 2 Aug 2010 09:53:58 +0000 (09:53 +0000)]
thumb2.md (thumb2_movdi, [...]): Delete patterns.
* config/arm/thumb2.md (thumb2_movdi, thumb2_movsf_soft_insn,
thumb2_movdf_soft_insn): Delete patterns.
* config/arm/arm.md (arm_pool_range, thumb2_pool_range,
arm_neg_pool_range, thumb2_neg_pool_range): New attributes.
(pool_range, neg_pool_range): Use them to define defaults.
(movdi, arm_movsf_soft_insn, arm_movdf_soft_insn): Define them
and allow for TARGET_32BIT.
* final.c (final_scan_insn): Call CC_STATUS_INIT unconditionally.
* config/arm/arm.c (thumb1_code): New variable.
(arm_override_options): Set it.
(thumb1_final_prescan_insn): Keep track of condition code status.
(arm_adjust_cost): For Thumb, try to keep cc-setting insns next to
jumps that depend on them.
* config/arm/arm.h (thumb1_code): Declare variable.
(struct machine_function): Guard with #ifndef GENERATOR_FILE. Add
members thumb1_cc_insn, thumb1_cc_op0, thumb1_cc_op1 and
thumb1_cc_mode.
(CC_STATUS_INIT): New macro.
* config/arm/constraints.md (Pd): New constraint.
* config/arm/predicates.md (noov_comparison_operator): New predicate.
* config/arm/arm.md (is_thumb1): New define_attr.
(conds): Set default to "clob" when generating Thumb1 code.
(thumb1_bicsi3): Renamed from bicsi3. All uses changed. Condition
code are set. Use two-operand assembly syntax.
(thumb1_subsi3_insn): Condition codes are set. Now a properly named
pattern.
(thumb1_andsi3_insn, thumb1_iorsi3_insn, thumb1_xorsi3_insn): Condition
codes are set. Use two-operand assembly syntax.
(zero_extendhisi splitter): Remove constraints.
(thumb1_movsi_insn, thumb1_movhi_insn, thumb1_movqi_insn, thumb1_movhf,
thumb1_movsf_insn): Set conds attribute as appropriate.
(cbranchsi4_insn): Use condition code status from struct
machine_function to determine whether the comparison can be eliminated.
Discourage the alternative using high registers.
(movsi_cbranchsi4, andsi3_cbranch, orrsi3_cbranch_scratch,
orrsi3_cbranch, xorsi3_cbranch_scratch, xorsi3_cbranch,
bicsi3_cbranch_scratch, bicsi3_cbranch, subsi3_cbranch_scratch,
subsi3_cbranch): Delete.
(movsi_cbranchsi4 peepholes): Rewrite to generate a sequence of
one subtract and one cbranch insn.
Uros Bizjak [Sun, 1 Aug 2010 10:41:57 +0000 (12:41 +0200)]
re PR target/45142 (split for *vec_set<mode>_0_sse2 incomplete)
PR target/45142
* config/i386/sse.md (vec_set<mode>_0): Do not set mode attribute for
alternative 2.
(vec_set<moode>_0 splitter): Use SSEMODE4S mode iterator to also
split V4SI operands.
tree-ssa-math-opts.c (convert_plusminus_to_widen): Fix type used in the call to optab_for_tree_code.
gcc/
* tree-ssa-math-opts.c (convert_plusminus_to_widen): Fix type
used in the call to optab_for_tree_code. Fix the second
is_widening_mult_p call. Check that both unwidened operands
have the same sign.
Mikael Morin [Sat, 31 Jul 2010 10:27:36 +0000 (10:27 +0000)]
re PR fortran/42051 ([OOP] ICE on array-valued function with CLASS formal argument)
2010-07-31 Mikael Morin <mikael@gcc.gnu.org>
PR fortran/42051
PR fortran/44064
* symbol.c (changed_syms): Made non-static.
* parse.c (changed_syms): Declare new external.
(next_statement): Assert changed_syms is NULL at the beginning.
Janus Weil [Thu, 29 Jul 2010 18:14:16 +0000 (20:14 +0200)]
re PR fortran/45004 ([OOP] Segfault with allocatable scalars and move_alloc)
2010-07-29 Janus Weil <janus@gcc.gnu.org>
PR fortran/45004
* trans-stmt.h (gfc_trans_class_init_assign): New prototype.
(gfc_trans_class_assign): Modified prototype.
* trans.h (gfc_conv_intrinsic_move_alloc): New prototype.
* trans-expr.c (gfc_trans_class_init_assign): Split off from ...
(gfc_trans_class_assign): ... here. Modified actual arguments.
* trans-intrinsic.c (gfc_conv_intrinsic_move_alloc): New function to
handle the MOVE_ALLOC intrinsic with scalar and class arguments.
* trans.c (trans_code): Call 'gfc_conv_intrinsic_move_alloc'.
re PR rtl-optimization/42575 (arm-eabi-gcc 64-bit multiply weirdness)
PR rtl-optimization/42575
* dce.c (word_dce_process_block): Renamed from byte_dce_process_block.
Argument AU removed. All callers changed. Ignore artificial refs.
Use return value of df_word_lr_simulate_defs to decide whether an insn
is necessary.
(fast_dce): Rename arg to WORD_LEVEL.
(run_word_dce): Renamed from rest_of_handle_fast_byte_dce. No longer
static.
(pass_fast_rtl_byte_dce): Delete.
* dce.h (run_word_dce): Declare.
* df-core.c (df_print_word_regset): Renamed from df_print_byteregset.
All callers changed. Simplify code to only deal with two-word regs.
* df.h (DF_WORD_LR): Renamed from DF_BYTE_LR.
(DF_WORD_LR_BB_INFO): Renamed from DF_BYTE_LR_BB_INFO.
(DF_WORD_LR_IN): Renamed from DF_BYTE_LR_IN.
(DF_WORD_LR_OUT): Renamed from DF_BYTE_LR_OUT.
(struct df_word_lr_bb_info): Renamed from df_byte_lr_bb_info.
(df_word_lr_mark_ref): Declare.
(df_word_lr_add_problem, df_word_lr_mark_ref, df_word_lr_simulate_defs,
df_word_lr_simulate_uses): Declare or rename from byte variants.
(df_byte_lr_simulate_artificial_refs_at_top,
df_byte_lr_simulate_artificial_refs_at_end, df_byte_lr_get_regno_start,
df_byte_lr_get_regno_len, df_compute_accessed_bytes): Delete
declarations.
(df_word_lr_get_bb_info): Rename from df_byte_lr_get_bb_info.
(enum df_mm): Delete.
* df-byte-scan.c: Delete file.
* df-problems.c (df_word_lr_problem_data): Renamed from
df_byte_lr_problem_data, all members deleted except for
WORD_LR_BITMAPS, which is renamed from BYTE_LR_BITMAPS. Uses changed.
(df_word_lr_expand_bitmap, df_byte_lr_simulate_artificial_refs_at_top,
df_byte_lr_simulate_artificial_refs_at_end, df_byte_lr_get_regno_start,
df_byte_lr_get_regno_len, df_byte_lr_check_regs,
df_byte_lr_confluence_0): Delete functions.
(df_word_lr_free_bb_info): Renamed from df_byte_lr_free_bb_info; all
callers changed.
(df_word_lr_alloc): Renamed from df_byte_lr_alloc; all callers changed.
Don't initialize members that were deleted, don't try to discover data
about registers. Ignore hard regs.
(df_word_lr_reset): Renamed from df_byte_lr_reset; all callers changed.
(df_word_lr_mark_ref): New function.
(df_word_lr_bb_local_compute): Renamed from
df_byte_bb_lr_local_compute; all callers changed. Use
df_word_lr_mark_ref. Assert that artificial refs don't include
pseudos. Ignore hard registers.
(df_word_lr_local_compute): Renamed from df_byte_lr_local_compute.
Assert that exit block uses don't contain pseudos.
(df_word_lr_init): Renamed from df_byte_lr_init; all callers changed.
(df_word_lr_confluence_n): Renamed from df_byte_lr_confluence_n; all
callers changed. Ignore hard regs.
(df_word_lr_transfer_function): Renamed from
df_byte_lr_transfer_function; all callers changed.
(df_word_lr_free): Renamed from df_byte_lr_free; all callers changed.
(df_word_lr_top_dump): Renamed from df_byte_lr_top_dump; all callers
changed.
(df_word_lr_bottom_dump): Renamed from df_byte_lr_bottom_dump; all
callers changed.
(problem_WORD_LR): Renamed from problem_BYTE_LR; uses changed;
confluence operator 0 set to NULL.
(df_word_lr_add_problem): Renamed from df_byte_lr_add_problem; all
callers changed.
(df_word_lr_simulate_defs): Renamed from df_byte_lr_simulate_defs.
Return bool, true if bitmap changed or insn otherwise necessary.
All callers changed. Simplify using df_word_lr_mark_ref.
(df_word_lr_simulate_uses): Renamed from df_byte_lr_simulate_uses;
all callers changed. Simplify using df_word_lr_mark_ref.
* lower-subreg.c: Include "dce.h"
(decompose_multiword_subregs): Call run_word_dce if df available.
* Makefile.in (lower-subreg.o): Adjust dependencies.
(df-byte-scan.o): Delete.
* timevar.def (TV_DF_WORD_LR): Renamed from TV_DF_BYTE_LR.
git://gcc.gnu.org / gcc.git / log