| Age | Commit message (Collapse) | Author | Files | Lines |
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2007-09-02 Kenneth Zadeck <zadeck@naturalbridge.com>
* ra-conflict.c: New file.
* ra.h: New file.
* reload.c (push_reload, find_dummy_reload): Change DF_RA_LIVE
usage to DF_LIVE usage.
* rtlanal.c (subreg_nregs_with_regno): New function.
* df-scan.c (df_def_record_1, df_uses_record): Add code to set
DF_REF_EXTRACT, DF_REF_STRICT_LOWER_PART, and DF_REF_SUBREG flags.
(df_has_eh_preds): Removed.
(df_bb_refs_collect, df_bb_refs_collect, df_bb_refs_collect,
df_exit_block_uses_collect): Changed call from df_has_eh_preds to
bb_has_eh_pred.
* global.c (allocno, max_allocno, conflicts, allocno_row_words,
reg_allocno, EXECUTE_IF_SET_IN_ALLOCNO_SET): Moved to ra.h
(SET_ALLOCNO_LIVE, CLEAR_ALLOCNO_LIVE): Moved to ra-conflicts.c.
(regs_set, record_one_conflict, record_conflicts, mark_reg_store,
mark_reg_clobber, mark_reg_conflicts, mark_reg_death): Deleted.
(global_alloc): Turn off rescanning insns after call to
global_conflicts and added call to set_preferences.
(global_conflicts): Moved to ra-alloc.c.
(set_preferences_1, set_preferences): New function.
(mirror_conflicts): Changed types for various variables.
(mark_elimination): Change DF_RA_LIVE
usage to DF_LIVE usage.
(build_insn_chain): Rewritten from scratch and made local.
(print_insn_chain, print_insn_chains): New functions.
(dump_conflicts): Do not print conflicts for fixed_regs.
(rest_of_handle_global_alloc): Turn off insn rescanning.
* hard-reg-set.h: Fixed comment.
* local-alloc.c (update_equiv_regs): Change DF_RA_LIVE
usage to DF_LIVE usage and delete refs to TOP sets.
(block_alloc): Mark regs as live if they are in the artificial
defs at top of block.
(find_stack_regs): New function.
(rest_of_handle_local_alloc): Changed urec problem to live
problem and do not turn off df rescanning.
* df.h (DF_UREC, DF_UREC_BB_INFO, DF_LIVE_TOP, DF_RA_LIVE_IN,
DF_RA_LIVE_TOP, DF_RA_LIVE_OUT, df_urec_bb_info, df_urec,
df_urec_add_problem, df_urec_get_bb_info, df_has_eh_preds): Removed.
(DF_CHAIN, DF_NOTE, DF_CHAIN): Renumbered.
(DF_REF_EXTRACT, DF_REF_STRICT_LOWER_PART, DF_REF_SUBREG): New
fields in df_ref_flags. The rest have been renumbered.
* init-regs.c (initialize_uninitialized_regs): Enhanced debugging
at -O1.
* rtl.h (subreg_nregs_with_regno): New function.
* df-problems.c: (df_get_live_out, df_get_live_in,
df_get_live_top): Removed reference to DF_RA_LIVE.
(df_lr_reset, df_lr_transfer_function, df_live_free_bb_info,
df_live_alloc, df_live_reset, df_live_local_finalize,
df_live_free): Make top set only if different from in set.
(df_lr_top_dump, df_live_top_dump): Only print top set if
different from in set.
(df_lr_bb_local_compute): Removed unnecessary check.
(df_urec_problem_data, df_urec_set_bb_info, df_urec_free_bb_info,
df_urec_alloc, df_urec_mark_reg_change, earlyclobber_regclass,
df_urec_check_earlyclobber, df_urec_mark_reg_use_for_earlyclobber,
df_urec_mark_reg_use_for_earlyclobber_1, df_urec_bb_local_compute,
df_urec_local_compute, df_urec_init, df_urec_local_finalize,
df_urec_confluence_n, df_urec_transfer_function, df_urec_free,
df_urec_top_dump, df_urec_bottom_dump, problem_UREC,
df_urec_add_problem): Removed.
(df_simulate_fixup_sets): Changed call from df_has_eh_preds to
bb_has_eh_pred.
* Makefile.in (ra-conflict.o, ra.h): New dependencies.
* basic_block.h (bb_has_abnormal_pred): New function.
* reload1.c (compute_use_by_pseudos): Change DF_RA_LIVE
usage to DF_LIVE usage.
From-SVN: r128957
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* doc/rtl.texi (Insns): Specify when a label_ref makes a jump_insn.
Similar for what label_refs can go in the JUMP_TARGET field. Split
REG_LABEL documentation into REG_LABEL_TARGET and REG_LABEL_OPERAND.
* reload.c (find_reloads): Generate REG_LABEL_OPERAND, not
REG_LABEL when replacing an operand with a LABEL_REF for a
non-jump insn.
(subst_reloads): When replacing a LABEL_REG with a register,
instead of generating a REG_LABEL note, assert that there already
is one or that the label is a known target for the insn.
* rtlanal.c (computed_jump_p): Instead of looking for a REG_LABEL
note, check the JUMP_LABEL field. Remove "else" after return.
* reorg.c (emit_delay_sequence): Replace case for REG_LABEL with
cases for REG_LABEL_OPERAND and REG_LABEL_TARGET.
(fill_slots_from_thread): Handle both REG_LABEL_OPERAND and
REG_LABEL_TARGET notes, including the JUMP_TARGET field on JUMP_P
insns. Iterate over all notes; don't assume there's only one.
* cse.c (recorded_label_ref): Adjust comment to refer to
REG_LABEL_OPERAND.
(cse_extended_basic_block): Do LABEL_REF check for all INSN_P
insns, not just NONJUMP_INSN_P.
(check_for_label_ref): For JUMP_P insns, check that the LABEL_REF
isn't a jump target.
* jump.c (rebuild_jump_labels): Adjust head comment.
(init_label_info): Ditto. Remove REG_LABEL_OPERAND notes only;
don't reset REG_LABEL_TARGET notes, including the JUMP_LABEL field.
(mark_all_labels): For JUMP_P insns without a target, check if the
the target is noted on the previous nonjump insn.
(mark_jump_label_1): New function, guts from mark_jump_label.
<case IF_THEN_ELSE>: Handle first operand as a non-target when
marking jump target labels.
<case LABEL_REF>: Adjust for whether to generate a
REG_LABEL_TARGET or a REG_LABEL_OPERAND note.
For 'E' format rtl, iterate in descending element order.
(delete_related_insns): Handle both REG_LABEL_TARGET and
REG_LABEL_OPERAND notes. For JUMP_P insns with labels with zero
reference count, delete and fallthrough. Move finding-next-
non-deleted insn last in the function. Look at all INSN_P insns
for REG_LABEL_OPERAND notes.
(redirect_jump_2): Assert that OLABEL equals the old JUMP_LABEL of
JUMP.
* print-rtl.c (print_rtx): For JUMP_P insns and a non-NULL
JUMP_LABEL, output the INSN_UID of it.
* gcse.c: Adjust comments as appropriate to say REG_LABEL_OPERAND
and/or REG_LABEL_TARGET.
(add_label_notes): Only add REG_LABEL_OPERAND notes. Put in line
with jump.c copy by only adding notes for labels actually
referenced in the insn.
* emit-rtl.c (try_split): Don't assume only NONJUMP_INSN_P need
usage count increment; handle all INSN_P trial insns.
(emit_copy_of_insn_after): Change to not copy REG_LABEL_OPERAND
notes.
* rtl.h (struct rtx_def) <volatil>: Adjust to mention
REG_LABEL_TARGET and REG_LABEL_OPERAND.
(LABEL_REF_NONLOCAL_P): Allow REG_LABEL_TARGET and
REG_LABEL_OPERAND.
* combine.c (distribute_notes): Adjust for REG_LABEL_TARGET on
JUMP_P insns and REG_LABEL_OPERAND everywhere.
* sched-rgn.c (is_cfg_nonregular): Check for REG_LABEL_OPERANDS
on all INSN_P insns.
* reg-notes.def (LABEL_TARGET, LABEL_OPERAND): Split from LABEL.
* cfgrtl.c (delete_insn): Adjust to handle REG_LABEL_TARGET and
REG_LABEL_OPERAND notes.
* reload1.c (calculate_needs_all_insns): Adjust comments.
(set_label_offsets): Adjust to look for REG_LABEL_OPERAND notes.
* config/alpha/alpha.md (split for load of an address into a
four-insn sequence on Unicos/Mk): Adjust to use
REG_LABEL_OPERAND.
* config/sh/sh.md (sh_reorg, final_prescan_insn): Ditto.
From-SVN: r128287
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regclass of operands.
ChangeLog:
2007-09-06 Pat Haugen <pthaugen@us.ibm.com>
* reload.c (find_reloads_address_1): Try to preserve original
base/index regclass of operands.
* regrename.c (scan_rtx_address): Likewise.
(replace_oldest_value_addr): Likewise.
From-SVN: r128183
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DEF_RTL_EXPR.
* rtl.c (rtx_code_size): Check CONST_FIXED to calcualte correct sizes
in DEF_RTL_EXPR.
(copy_rtx): Handle CONST_FIXED.
(rtx_equal_p): Likewise.
* rtl.h (fixed_value.h): New include.
(rtx_def): Add a new field of fixed_value to u.
(XCNMPFV): Define for accessing fixed_value.
(CONST_FIXED_VALUE, CONST_FIXED_VALUE_HIGH, CONST_FIXED_VALUE_LOW):
Define.
* rtl.def (CONST_FIXED): New constant.
(SS_MULT, US_MULT, SS_DIV, US_DIV, FRACT_CONVERT,
UNSIGNED_FRACT_CONVERT, SAT_FRACT, UNSIGNED_SAT_FRACT, US_NEG,
US_ASHIFT): New codes.
* doc/rtl.texi (Expressions): Document const_fixed, us_neg, ss_mult,
us_mult, ss_div, us_div, us_ashift, fract_convert, sat_fract,
unsigned_fract_convert, unsigned_sat_fract): Document them.
* varasm.c (assemble_integer): Extend to support fixed-point constants
by using different machine classes.
(decode_addr_const): Handle FIXED_CST.
(const_hash_1): Likewise.
(compare_constant): Likewise.
(copy_constant): Likewise.
(const_rtx_hash_1): Handle CONST_FIXED.
(output_constant_pool_2): Handle MODE_FRACT, MODE_UFRACT, MODE_ACCUM,
MODE_UACCUM, MODE_VECTOR_FRACT, MODE_VECTOR_UFRACT, MODE_VECTOR_ACCUM,
MODE_VECTOR_UACCUM.
(initializer_constant_valid_p): Handle FIXED_CST.
(output_constant): Support FIXED_POINT_TYPE.
* gengenrtl.c (excluded_rtx): Check CONST_FIXED to exclude.
* cse.c (hash_rtx): Support CONST_FIXED.
(exp_equiv_p): Likewise.
(cannon_reg): Likewise.
(fold_rtx): Likewise.
(equiv_constant): Likewise.
(cse_process_notes_1): Likewise.
(count_reg_usage): Likewise.
* cselib.c (entry_and_rtx_equal_p): Check CONST_FIXED.
(rtx_equal_for_cselib_p): Handle CONST_FIXED.
(wrap_constant): Check CONST_FIXED.
(cselib_hash_rtx): Support CONST_FIXED.
(cselib_subst_to_values): Likewise.
* df-scan.c (df_uses_record): Likewise.
* gcse.c (want_to_gcse_p): Likewise.
(oprs_unchanged_p): Likewise.
(oprs_not_set_p): Likewise.
(compute_transp): Likewise.
(extract_mentioned_regs_helper): Likewise.
* genemit.c (gen_exp): Likewise.
* local-alloc.c (equiv_init_varies_p): Likewise.
(contains_replace_regs): Likewise.
(memref_referenced_p): Likewise.
* loop-invariant.c (check_maybe_invariant): Likewise.
(hash_invariant_expr_1): Likewise.
(invariant_expr_equal_p): Likewise.
* postreload-gcse.c (oprs_unchanged_p): Likewise.
* regclass.c (reg_scan_mark_refs): Likewise.
* regrename.c (scan_rtx): Likewise.
* resource.c (mark_referenced_resources): Likewise.
(mark_set_resources): Likewise.
* rtlanal.c (rtx_unstable_p): Likewise.
(rtx_varies_p): Likewise.
(count_occurrences): Likewise.
(reg_mentioned_p): Likewise.
(modified_between_p): Likewise.
(modified_in_p): Likewise.
(volatile_insn_p): Likewise.
(volatile_refs_p): Likewise.
(side_effects_p): Likewise.
(may_trap_p_1): Likewise.
(inequality_comparisons_p): Likewise.
(computed_jump_p_1): Likewise.
(commutative_operand_precedence): Likewise.
* sched-deps.c (sched_analyze_2): Likewise.
* sched-vis.c (print_value): Likewise.
* reload.c (operands_match_p): Likewise.
(subst_reg_equivs): Likewise.
* reload1.c (eliminate_regs_1): Likewise.
(elimination_effects): Likewise.
(scan_paradoxical_subregs): Likewise.
* alias.c (rtx_equal_for_memref_p): Likewise.
* Makefile.in (RTL_BASE_H): Add fixed-value.h.
* emit-rtl.c (const_fixed_htab): New hash table.
(const_fixed_htab_hash, const_fixed_htab_eq, lookup_const_fixed):
Declare.
(const_fixed_htab_hash, const_fixed_htab_eq, lookup_const_fixed,
const_fixed_from_fixed_value): New functions.
(verify_rtx_sharing): Handle CONST_FIXED.
(copy_rtx_if_shared_1): Likewise.
(reset_used_flags): Likewise.
(set_used_flags): Likewise.
(copy_insn_1): Likewise.
(init_emit_once): Create const_fixed_htab.
Store fixed-point scalar and vector zero and one to const_tiny_rtx.
From-SVN: r127725
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gcc/
PR middle-end/32897
* reload.c (find_reloads): Check that the memory returned by
find_reloads_toplev was not the result of forcing a constant
to memory.
(find_reloads_toplev): Always use simplify_gen_subreg to get
the subreg of a constant. If the result is also a constant,
but not a legitimate one, force it into the constant pool
and reload its address.
gcc/testsuite/
* gcc.dg/torture/pr32897.c: New test.
From-SVN: r127536
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* optabs.c (expand_widen_pattern_expr): Use optabs accestors.
(expand_ternary_op): Likewise.
(expand_vec_shift_expr): Likewise.
(expand_binop_directly): Likewise.
(expand_binop): Likewise.
(sign_expand_binop): Likewise.
(expand_twoval_unop): Likewise.
(expand_twoval_binop): Likewise.
(expand_twoval_binop_libfunc): Likewise.
(widen_clz): Likewise.
(widen_bswap): Likewise.
(expand_parity): Likewise.
(expand_unop): Likewise.
(expand_abs_nojump): Likewise.
(expand_copysign): Likewise.
(emit_no_conflict_block): Likewise.
(emit_libcall_block): Likewise.
(can_compare_p): Likewise.
(prepare_cmp_insn): Likewise.
(emit_cmp_and_jump_insn_1): Likewise.
(prepare_float_lib_cmp): Likewise.
(emit_conditional_add): Likewise.
(gen_add2_insn): Likewise.
(have_add2_insn): Likewise.
(gen_sub2_insn): Likewise.
(have_sub2_insn): Likewise.
(can_extend_p): Likewise.
(can_fix_p): Likewise.
(can_float_p): Likewise.
(expand_float): Likewise.
(expand_fix): Likewise.
(expand_sfix_optab): Likewise.
(new_optab): Likewise.
(new_convert_optab): Likewise.
(init_libfuncs): Likewise.
(init_interclass_conv_libfuncs): Likewise.
(init_intraclass_conv_libfuncs): Likewise.
(set_conv_libfunc): Likewise.
(init_optabs): Likewise.
(debug_optab_libfuncs): Likewise.
(gen_cond_trap): Likewise.
* optabs.h (optab_handler, convert_optab_hanlder): New.
* genopinit.c: Update optabs generation table.
* reload.c (find_reloads_address_1): Use optabs accestors.
* builtins.c (expand_builtin_mathfn): Likewise.
(expand_builtin_mathfn_2): Likewise.
(expand_builtin_mathfn_3): Likewise.
(expand_builtin_interclass_mathfn): Likewise.
(expand_builtin_sincos): Likewise.
(expand_builtin_cexpi): Likewise.
(expand_builtin_powi): Likewise.
(expand_builtin_strlen): Likewise.
* dojump.c (do_jump): Likewise.
* expr.c (convert_move): Likewise.
(move_by_pieces): Likewise.
(move_by_pieces_ninsns): Likewise.
(can_store_by_pieces): Likewise.
(store_by_pieces_1): Likewise.
(emit_move_via_integer): Likewise.
(emit_move_complex): Likewise.
(emit_move_ccmode): Likewise.
(emit_move_insn_1): Likewise.
(emit_single_push_insn): Likewise.
(store_constructor): Likewise.
(expand_expr_real_1): Likewise.
(do_store_flag): Likewise.
* ada/misc.c (gnat_compute_largest_alignment): Likewise.
(enumerate_modes): Likewise.
* tree-vectorizer.c (vect_supportable_dr_alignment): Likewise.
(supportable_widening_operation): Likewise.
(supportable_narrowing_operation): Likewise.
* expmed.c (store_bit_field_1): Likewise.
(extract_bit_field_1): Likewise.
(expand_mult_highpart_optab): Likewise.
(expand_smod_pow2): Likewise.
(expand_divmod): Likewise.
(emit_store_flag): Likewise.
* tree-vect-patterns.c
(vect_pattern_recog_1): Likewise.
* tree-ssa-loop-prefetch.c
(nontemporal_store_p): Likewise.
* tree-vect-transform.c (vect_model_reduction_cost): Likewise.
(vect_create_epilog_for_reduction): Likewise.
(vectorizable_reduction): Likewise.
(vectorizable_operation): Likewise.
(vect_strided_store_supported): Likewise.
(vectorizable_store): Likewise.
(vect_strided_load_supported): Likewise.
(vectorizable_load): Likewise.
* combine.c (simplify_comparison): Likewise.
* tree-vect-generic.c
(type_for_widest_vector_mode): Likewise.
(expand_vector_operations_1): Likewise.
* config/spu/spu.c (spu_expand_mov): Likewise.
(spu_emit_vector_compare): Likewise.
* config/rs6000/rs6000.c
(rs6000_emit_vector_compare): Likewise.
* stmt.c (add_case_node): Likewise.
* reload1.c (gen_reload):
From-SVN: r127317
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find_reloads_address.
2007-08-01 Sandra Loosemore <sandra@codesourcery.com>
gcc/
* reload.c (find_reloads_address_part): Pass correct MEMREFLOC
argument to find_reloads_address.
From-SVN: r127136
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License and to point readers at the COPYING3 file and the FSF's license web page.
From-SVN: r126948
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From-SVN: r125624
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gcc/
* regs.h (end_hard_regno): New function.
(END_HARD_REGNO, END_REGNO): New macros.
(add_to_hard_reg_set): New function.
(remove_from_hard_reg_set): Likewise.
(in_hard_reg_set_p): Likewise.
(overlaps_hard_reg_set_p): Likewise.
* bt-load.c (find_btr_reference): Use overlaps_hard_reg_set_p.
(note_btr_set): Use END_HARD_REGNO.
* caller-save.c (setup_save_areas): Use end_hard_regno.
(mark_set_regs): Use END_HARD_REGNO.
(add_stored_regs): Use end_hard_regno.
(mark_referenced_regs): Use add_to_hard_reg_set.
* combine.c (update_table_tick): Use END_REGNO.
(record_value_for_reg): Likewise.
(record_dead_and_set_regs): Likewise.
(get_last_value_validate): Likewise.
(use_crosses_set_p): Likewise.
(reg_dead_at_p_1): Likewise.
(reg_dead_at_p): Likewise.
(mark_used_regs_combine): Use add_to_hard_reg_set.
(move_deaths): Use END_HARD_REGNO.
(reg_bitfield_target_p): Use end_hard_regno.
(distribute_notes): Use END_HARD_REGNO.
* cse.c (mention_regs): Use END_REGNO.
(insert): Use add_to_hard_reg_set.
(invalidate): Use END_HARD_REGNO.
(invalidate_for_call): Likewise.
(exp_equiv_p): Use END_REGNO.
(cse_insn): Likewise.
* cselib.c (cselib_invalidate_regno): Use end_hard_regno.
* df-problems.c (df_urec_mark_reg_change): Use END_HARD_REGNO.
* df-scan.c (df_ref_record): Use END_HARD_REGNO.
* function.c (keep_stack_depressed): Use end_hard_regno.
* global.c (global_alloc): Use end_hard_regno.
(global_conflicts): Use add_to_hard_reg_set instead of
mark_reg_live_nc.
(find_reg): Likewise.
(mark_reg_store): Likewise.
(mark_reg_conflicts): Likewise.
(mark_reg_death): Use remove_from_hard_reg_set.
(mark_reg_live_nc): Delete.
(set_preference): Use end_hard_regno.
* local-alloc.c (mark_life): Use add_to_hard_reg_set and
remove_from_hard_reg_set.
(post_mark_life): Use add_to_hard_reg_set.
* mode-switching.c (reg_dies): Use remove_from_hard_reg_set.
(reg_becomes_live): Use add_to_hard_reg_set.
* recog.c (reg_fits_class_p): Use in_hard_reg_set_p.
(peep2_find_free_register): Use add_to_hard_reg_set.
* reg-stack.c (convert_regs_exit): Use END_HARD_REGNO.
* regclass.c (record_reg_classes): Use in_hard_reg_set_p.
* regrename.c (note_sets): Use add_to_hard_reg_set.
(clear_dead_regs): Use remove_from_hard_reg_set.
(regrename_optimize): Use add_to_hard_reg_set.
(find_oldest_value_reg): Use in_hard_reg_set_p.
* reload.c (push_reload): Use in_hard_reg_set_p and end_hard_regno.
(hard_reg_set_here_p): Use end_hard_regno.
(decompose): Likewise.
(reg_overlap_mentioned_for_reload_p): Use END_HARD_REGNO.
(find_equiv_reg): Use in_hard_reg_set_p and end_hard_regno.
* reload1.c (compute_use_by_pseudos): Use add_to_hard_reg_set.
(mark_home_live): Use end_hard_regno.
(spill_hard_reg): Likewise.
(clear_reload_reg_in_use): Likewise.
* reorg.c (delete_prior_computation): Use END_REGNO.
* resource.c (update_live_status): Use END_HARD_REGNO.
(mark_referenced_resources): Use add_to_hard_reg_set.
(mark_set_resources): Likewise.
(mark_target_live_regs): Likewise. Use remove_from_hard_reg_set.
* rtlanal.c (refers_to_regno_p): Use END_REGNO.
(reg_overlap_mentioned_p): Likewise.
(dead_or_set_p): Likewise. Use an exclusive upper loop bound.
(covers_regno_no_parallel_p): Use END_REGNO.
(find_regno_note): Likewise.
(find_reg_fusage): Use END_HARD_REGNO.
* stmt.c (decl_overlaps_hard_reg_set_p): Use overlaps_hard_reg_set_p.
* var-tracking.c (emit_note_insn_var_location): Use end_hard_regno.
From-SVN: r124961
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compiling for spu-elf)
PR target/31850
* reload.c (subst_reloads): Remove checking.
From-SVN: r124810
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'-fno-exceptions' and '-O' options are specified)
PR rtl-optimization/28011
* reload.c (push_reload): Set dont_share if IN appears in OUT
also when IN is a PLUS rtx.
(reg_overlap_mentioned_for_reload_p): Return true if X and IN
are same PLUS rtx.
From-SVN: r124557
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gcc/
* reload.h (elimination_target_reg_p): Declare.
* reload.c (find_reloads): Don't apply the reg_rtx move
optimization if the SET_DEST satisfies elimination_target_reg_p.
* reload1.c (elimination_target_reg_p): New function.
(gen_reload): In the move/add2 fallback, make sure that op0
does not overlap the destination register.
From-SVN: r124215
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insn) [arm])
gcc/:
PR target/28675
* reload.c (find_reloads_subreg_address): If the address was valid
in the original mode but not in the new mode, reload the whole
address.
testsuite/:
PR target/28675
* gcc.c-torture/compile/pr28675.c: New test.
From-SVN: r124211
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* reload.c (combine_reloads): When trying to use a dying register,
check whether it's uninitialized and don't use if so.
From-SVN: r123986
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* reload.c (find_reloads_toplev, find_reloads_address,
find_reloads_address_1, find_reloads_subreg_address): Use rtx_equal_p,
not a pointer equality test, to decide if we need to call
push_reg_equiv_alt_mem.
From-SVN: r123724
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register elimination as PRE_MODIFY /...
* reload.c (find_reloads_address_1): Handle PLUS expressions resulting
from register elimination as PRE_MODIFY / POST_MODIFY increments.
Do not attempt to handle MEM inside auto-inc expressions.
* reload1.c (eliminate_regs_1): Do not attempt to handle elimination
of a register modified by an auto-inc expression. However, do handle
elimination of a register used as PRE_MODIFY / POST_MODIFY increment.
(elimination_effects): Prohibit elimination of a register modified
by an auto-inc expression. Disable register elimination rules whose
target register is modified by an auto-inc expression with variable
increment.
From-SVN: r122318
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* c-decl.c, config/avr/avr.c, config/avr/avr.h,
config/m68k/m68k.c, config/m68k/netbsd-elf.h,
config/mn10300/mn10300.c, config/pdp11/pdp11.h,
config/rs6000/cell.md, config/rs6000/darwin.h,
config/sh/sh.md, config/sh/sh4-300.md, config/spu/spu.c,
config/spu/spu.md, cselib.c, expr.c, haifa-sched.c, hwint.h,
jump.c, reload.c, sched-deps.c, sched-int.h, tree-inline.c,
tree-profile.c, tree-ssa-live.h, tree-vrp.c: Fix comment
typos. Follow spelling conventions.
* doc/invoke.texi: Follow spelling conventions.
From-SVN: r121546
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* rtlanal.c (struct subreg_info, subreg_get_info, subreg_nregs):
New.
(subreg_regno_offset, subreg_offset_representable_p): Change to
wrappers about subreg_get_info.
(refers_to_regno_p, reg_overlap_mentioned_p): Use subreg_nregs.
* rtl.h (subreg_nregs): Declare.
* doc/tm.texi (HARD_REGNO_NREGS_HAS_PADDING): Update to refer to
subreg_get_info.
* caller-save.c (mark_set_regs, add_stored_regs): Use
subreg_nregs.
* df-scan.c (df_ref_record): Use subreg_nregs.
* flow.c (mark_set_1): Use subreg_nregs.
* postreload.c (move2add_note_store): Use subreg_nregs.
* reload.c (decompose, refers_to_regno_for_reload_p,
reg_overlap_mentioned_for_reload_p): Use subreg_nregs.
* resource.c (update_live_status, mark_referenced_resources,
mark_set_resources): Use subreg_nregs.
From-SVN: r120076
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expressions)
gcc/
PR rtl-optimization/28982
* reload.c (find_reloads_address_1): Use RELOAD_OTHER for the
index of a PRE_MODIFY or POST_MODIFY address.
* reload1.c (inc_for_reload): Use find_replacement on the original
base and index registers.
gcc/testsuite/
PR rtl-optimization/28982
* gcc.c-torture/execute/pr28982a.c: New test.
* gcc.c-torture/execute/pr28982b.c: Likewise.
From-SVN: r116919
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20060608)
PR target/28146
* reload.h (reg_equiv_alt_mem_list): New declaration.
* reload1.c (reg_equiv_alt_mem_list): New definition.
(reload): Initialize it and release it.
(delete_output_reload): Use it.
* reload.c (push_reg_equiv_alt_mem): New function.
(find_reloads_toplev): Call it.
(find_reloads_address, find_reloads_address_1): Likewise.
(find_reloads_subreg_address): Likewise.
From-SVN: r116215
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config/i386/i386.c:16446)
PR target/26655
PR target/28270
* reload.c (push_reload): Patch out the mismathcing instruction; return early.
(find_reload): Bail out if the instruction was patched out.
From-SVN: r115928
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bootstrapping 4.2 on alpha)
PR target/27858
Revert incorrect fix for PR target/27158
2006-05-08 Roger Sayle <roger@eyesopen.com>
* reload.c (find_reloads_toplev): Only return the simplified SUBREG
of a reg_equiv_constant if the result is a legitimate constant.
From-SVN: r114559
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2006-06-09 Andreas Krebbel <krebbel1@de.ibm.com>
* reload.c (find_reloads): Unset force_reload for 'X' constraint.
From-SVN: r114508
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* cfgcleanup.c, cfgexpand.c, cgraphunit.c, config/arm/arm.c,
config/fr30/fr30.md, config/i386/i386-interix.h,
config/i386/i386.c, config/i386/i386.md, config/sh/superh.h,
config/sh/superh64.h, config/v850/v850.c, df-core.c,
df-problems.c, df.h, except.c, final.c, haifa-sched.c,
lambda-code.c, libgcc2.h, omp-low.c, optabs.c, predict.c,
reload.c, tree-flow.h, tree-outof-ssa.c, tree-ssa-dce.c,
tree-ssa-pre.c, tree-vect-transform.c: Fix comment typos.
Follow spelling conventions.
* doc/invoke.texi, doc/rtl.texi, doc/tm.texi: Fix typos.
Follow spelling conventions.
From-SVN: r114168
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PR rtl-optimization/27661
* reload.c (find_reloads): When reloading a VOIDmode constant
as address due to an EXTRA_MEMORY_CONSTRAINT or 'o' constraint,
use Pmode as mode of the reload register.
PR rtl-optimization/27661
* gcc.dg/pr27661.c: New test case.
From-SVN: r114141
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PR target/27158
* reload.c (find_reloads_toplev): Only return the simplified SUBREG
of a reg_equiv_constant if the result is a legitimate constant.
* gcc.target/powerpc/pr27158.c: New test case.
From-SVN: r113632
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2006-04-17 Richard Guenther <rguenther@suse.de>
PR target/26826
* reload.c (push_reload): Guard calls to get_secondary_mem
for memory subregs.
From-SVN: r113007
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* reload.c (find_dummy_reload): Fix typo in 2006-04-03 change.
From-SVN: r112705
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2005-08-08 Paolo Bonzini <bonzini@gnu.org>
Dale Johannesen <dalej@apple.com>
PR target/19653
* regclass.c (struct reg_pref): Update documentation.
(regclass): Set prefclass to NO_REGS if memory is the best option.
(record_reg_classes): Cope with a prefclass set to NO_REGS.
* reload.c (find_reloads): Take PREFERRED_OUTPUT_RELOAD_CLASS
into account. For non-registers, equate an empty preferred
reload class to a `!' in the constraint; move the if clause to
do so after those that reject the insn.
(push_reload): Allow PREFERRED_*_RELOAD_CLASS to liberally
return NO_REGS.
(find_dummy_reload): Likewise.
* doc/tm.texi (Register Classes): Document what it means
if PREFERRED_*_RELOAD_CLASS return NO_REGS.
* config/i386/i386.c (ix86_preferred_reload_class): Force
using SSE registers (and return NO_REGS for floating-point
constants) if math is done with SSE.
(ix86_preferred_output_reload_class): New.
* config/i386/i386-protos.h (ix86_preferred_output_reload_class): New.
* config/i386/i386.h (PREFERRED_OUTPUT_RELOAD_CLASS): New.
* config/i386/i386.md: Remove # register preferences.
Co-Authored-By: Dale Johannesen <dalej@apple.com>
From-SVN: r112637
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* config/bfin/bfin-protos.h (bfin_dsp_memref_p): Declare.
* config/bfin/bfin.c (bfin_dsp_memref_p): New function.
(bfin_valid_reg_p): Test for pseudos explicitly and use only
REGNO_MODE_CODE_OK_FOR_BASE_P. New args MODE and OUTER_CODE; all
callers changed.
* config/bfin/bfin.h (PREG_P): Use P_REGNO_P.
(IREG_P, P_REGNO_P, I_REGNO_P): New macros.
(enum reg_class, REG_CLASS_CONTENTS): Add IPREGS.
(BASE_REG_CLASS, REG_OK_FOR_BASE_P, REG_OK_FOR_INDEX_P,
REGNO_OK_FOR_BASE_STRICT_P, REGNO_OK_FOR_BASE_NONSTRICT_P): Delete
macros.
(IREG_POSSIBLE_P, MODE_CODE_BASE_REG_CLASS,
REGNO_MODE_CODE_OK_FOR_BASE_P): New macros.
(REGNO_REG_CLASS): ARGP is in PREGS.
* config/bfin/bfin.md (movhi_insn): Allow for addresses containing
IREGS.
(zero_extendhisi2, extendhisi2): Likewise; changed to define_and_split
to deal with those addresses.
* addresses.h: New file.
* caller-save.c: Include "addresses.h".
(init_caller_save): Use new base_reg_class function.
* rtl-factoring.c: Include "addresses.h".
(recompute_gain_for_pattern_seq): Use new function ok_for_base_p_1.
* recog.c: Include "addresses.h".
(preprocess_constraints): Use new base_reg_class function.
* regrename.c: Include "addresses.h".
(scan_rtx_address): Use new regno_ok_for_base_p and base_reg_class
functions. Keep track of a new var INDEX_CODE to compute valid
classes.
(replace_oldest_value_addr): Likewise.
(replace_oldest_value_mem): Use base_reg_class.
* reload.c: Include "addresses.h".
(REGNO_MODE_OK_FOR_BASE_P, REG_MODE_OK_FOR_BASE_P): Delete macros.
(find_reloads): Use new base_reg_class function.
(find_reloads_address): Likewise; also use regno_ok_for_base_p.
(find_reloads_address_1): Likewise. New args OUTER_CODE and INDEX_CODE;
all callers and prototype changed.
* reload1.c: Include "addresses.h".
(maybe_fix_stack_asms): Use base_reg_class.
* regclass.c: Include "addresses.h".
(ok_for_index_p_nonstrict, ok_for_base_p_nonstrict): New functions.
(init_reg_autoinc): Use new base_reg_class function.
(record_reg_classes): Likewise.
(record_address_regs): Delete arg CLASS; add args CONTEXT, MODE,
OUTER_CODE and INDEX_CODE. All callers and prototype changed.
Use new args to compute necessary class.
* Makefile.in (regclass.o, reload.o, reload1.o, caller-save.o, recog.o,
regrename.o, rtl-factoring.o): Update dependencies.
* doc/tm.texi (MODE_CODE_BASE_REG_CLASS): Document.
(REGNO_MODE_CODE_OK_FOR_BASE_P): Likewise.
(REG_OK_FOR_BASE_P, REG_MODE_OK_FOR_BASE_P, REG_MODE_OK_FOR_REG_BASE_P,
REG_OK_FOR_INDEX_P): Delete documentation.
From-SVN: r112248
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2006-02-16 Denis Nagorny <denis_nagorny@linux.intel.com>
PR rtl-optimization/25603
* reload.c (reg_inc_found_and_valid_p): New. Check REG_INC note.
(regno_clobbered_p): Use it. Reusing SETS argument for REG_INC case.
* reload1.c (choose_reload_regs): Added call of regno_clobbered_p
with new meaning of SETS.
From-SVN: r111162
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* reload.c (push_secondary_reload): Initialize t_icode.
From-SVN: r110485
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* reload.c (reg_overlap_mentioned_for_reload_p): Handle subregs of
mems.
From-SVN: r109792
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PR rtl-optimization/21041
* reload.c (find_reloads_subreg_address): Replace paradoxical
subreg of MEM by widened access only if the resulting memory
is properly aligned, even on !STRICT_ALIGNMENT targets.
PR rtl-optimization/21041
* gcc.dg/pr21041.c: New test.
From-SVN: r108760
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* reload.c (find_reloads): Fix comment typo.
* recog.h (recog_memoized): Correct comment.
From-SVN: r108627
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* basic-block.h, config/i386/winnt.c, config/pa/pa.c,
config/s390/s390.c, dfp.c, expr.c, fold-const.c, params.def,
reload.c, struct-equiv.c, tree-ssa-ccp.c, tree-ssa-pre.c,
tree-ssa-reassoc.c, tree-ssa-structalias.c: Fix comment typos.
* doc/invoke.texi, doc/tm.texi: Fix typos.
From-SVN: r108626
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2005-12-07 J"orn Rennecke <joern.rennecke@st.com>
* reload.h (reg_equiv_invariant): Declare.
* reload.c (refers_to_regno_for_reload_p): Allow R to be a pseudo
register also when reg_equiv_invariant[R] is set.
From-SVN: r108195
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s/insn_constraint/scratch_constraint/.
* gcc/reload.c (push_secondary_reload): Fix typo:
s/insn_constraint/scratch_constraint/.
From-SVN: r108154
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PR target/21623:
* regclass.c (FORBIDDEN_INC_DEC_CLASSES): Remove
SECONDARY_INPUT_RELOAD_CLASS and SECONDARY_OUTPUT_RELOAD_CLASS tests.
(init_fake_stack_mems): Remove HAVE_SECONDARY_RELOADS test.
(memory_move_secondary_cost, init_reg_autoinc): Remove
SECONDARY_INPUT_RELOAD_CLASS / SECONDARY_OUTPUT_RELOAD_CLASS tests.
Replace SECONDARY_{IN,OUT}PUT_RELOAD_CLASS use with
secondary_reload_class call.
(copy_cost): Likewise. Add new parameter prev_sri. Changed all
callers.
* reload.c (entire file): Remove HAVE_SECONDARY_RELOADS checks.
(push_secondary_reload): Use secondary_reload target hook.
(secondary_reload_class, scratch_reload_class): New functions.
(push_reload): Remove SECONDARY_INPUT_RELOAD_CLASS and
SECONDARY_OUTPUT_RELOAD_CLASS tests. Replace
SECONDARY_{IN,OUT}PUT_RELOAD_CLASS use with secondary_reload_class call.
* reload.h (HAVE_SECONDARY_RELOADS): Don't define nor test.
(secondary_reload_class, scratch_reload_class): Declare.
* reload1.c: Include target.h.
(reload_adjust_reg_for_temp): New function.
(reload_adjust_reg_for_icode): Likewise.
(choose_reload_regs): Remove SECONDARY_INPUT_RELOAD_CLASS test.
Replace SECONDARY_INPUT_RELOAD_CLASS use with secondary_reload_class
call.
(emit_input_reload_insns): Likewise. Rewrite secondary reload checks
for inheritance. Support case when both secondary & tertiary reloads
are for intermediate registers.
(emit_output_reload_insns): Replace SECONDARY_OUTPUT_RELOAD_CLASS use
with secondary_reload_class call. Support case when both secondary
& tertiary reloads are for intermediate registers.
* target-def.h (TARGET_SECONDARY_RELOAD): Provide default definition.
(TARGET_INITIALIZER) Add TARGET_SECONDARY_RELOAD.
* target.h (secondary_reload_info): New struct / typedef.
(struct gcc_target): New member secondary_reload.
* targhooks.c Include reload.h, optabs.h and recog.h.
(default_secondary_reload): New function.
* targhooks.h (default_secondary_reload): Declare.
* doc/tm.texi: Document secondary_reload target hook. Update
description of SECONDARY_*RELOAD_CLASS and reload_{in,out}<mode>.
* doc/md.texi: Likewise.
* sh-protos.h (sh_secondary_reload): Declare.
* sh.c (TARGET_SECONDARY_RELOAD): Override.
(sh_secondary_reload): New function.
* sh.h (SECONDARY_INOUT_RELOAD_CLASS): Don't define.
(SECONDARY_OUTPUT_RELOAD_CLASS): Likewise.
(SECONDARY_INPUT_RELOAD_CLASS): Likewise.
(HAVE_SECONDARY_RELOADS): Define.
* sh.md (reload_indf): Rename to:
(reload_indf__frn).
(reload_outdf): Rename to:
(reload_outdf__RnFRm).
(reload_insf): Rename to:
(reload_insf__frn).
(reload_insi): Rename to:
(reload_insi__i_fpul).
From-SVN: r107468
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testing GET_MODE_CLASS (x) ==...
* optabs.c (expand_abs_nojump): Use SCALAR_FLOAT_MODE_P instead of
explicitly testing GET_MODE_CLASS (x) == MODE_FLOAT.
* genopinit.c (gen_insn): Likewise.
* reload.c (find_equiv_reg): Likewise.
* loop.c (load_mems): Likewise.
* rtlanal.c (may_trap_p_1, canonicalize_condition): Likewise.
* cse.c (find_comparison_args, fold_rtx): Likewise.
* dwarf2out.c (add_const_value_attribute): Likewise.
* expr.c (convert_move): Likewise.
* recog.c (general_operand, register_operand): Likewise.
* reg-stack.c (replace_reg): Likewise.
* tree-vect-generic.c (type_for_widest_vector_mode): Likewise.
* c-common.c (handle_vector_size_attribute): Likewise.
* simplify-rtx.c (simplify_const_unary_operation): Likewise.
(simplify_binary_operation_1): Likewise.
(simplify_const_binary_operation): Likewise.
(simplify_relational_operation): Likewise.
(simplify_const_relational_operation): Likewise.
(simplify_immed_subreg): Likewise.
* emit-rtl.c (gen_lowpart_common): Likewise.
* expmed.c (expand_mult): Likewise.
* stor-layout.c (layout_type): Likewise.
From-SVN: r107322
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reload_cse_simplify_operands)
PR middle-end/24912
PR middle-end/24750
* reload.c (find_reloads_address_1): Mention dependency on
gen_reload.
* reload1.c (gen_reload): For IN with an unary operation, try
moving inner expression to OUT if trivial SET is not valid.
Confirm that the result is valid. Move common code block into...
(emit_insn_if_valid_for_reload): New function.
From-SVN: r107231
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unexpected addressing modes)
PR middle-end/24750
* reload.c (find_reloads_address_1) <case TRUNCATE, SIGN_EXTEND,
ZERO_EXTEND>: New cases.
From-SVN: r106804
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O2 - not with no optimizations))
2005-10-05 Andrew Pinski <pinskia@physics.uc.edu>
PR middle-end/20606
PR middle-end/24069
* reload.c (subst_reloads): When adding a REG_LABEL to a
jump instruction, also update JUMP_LABEL.
From-SVN: r105013
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uses wrong reload type)
PR middle-end/23135
* reload.c (find_reloads_subreg_address): Pass down TYPE
unchanged. Change all callers except find_reloads_toplev.
From-SVN: r102772
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* cse.c (exp_equiv_p): Special case CONST_DOUBLE.
* cselib.c (rtx_equal_for_cselib_p): Likewise.
* jump.c (rtx_renumbered_equal_p): Likewise.
* loop.c (rtx_equal_for_loop_p): Tidy and special case PC, CC0,
CONST_INT and CONST_DOUBLE.
(rtx_equal_for_prefetch_p): Likewise, plus LABEL_REF.
* reload.c (operands_match_p): Special case CONST_INT and
CONST_DOUBLE; check mode earlier.
From-SVN: r102548
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From-SVN: r101317
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global_live_at_end from ...
* basic-block.h (rtl_bb_info): Break out head_, end_,
global_live_at_start, global_live_at_end from ...
(basic_block_def): ... here; update all references
(BB_RTL): New flag.
(init_rtl_bb_info): Declare.
* cfgexpand.c (expand_gimple_basic_block): Init bb info, set BB_RTL
flag.
* cfgrtl.c: Include ggc.h
(create_basic_block_structure): Init bb info.
(rtl_verify_flow_info_1): Check BB_RTL flag and rtl_bb_info pointer.
(init_rtl_bb_info): New function.
(rtl_merge_block, cfglayout_merge_block): Copy global_live_at_end here.
* cfghooks.c (merge_block): Do not copy global_live_at_end here.
* cfg.c (clear_bb_flags): Skip BB_RTL flag.
(dump_flow_info): Gueard global_live_* dumping.
From-SVN: r101082
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PR rtl-optimization/18877
* reload.c (decompose) <case REG, case SUBREG>: Handle pseudo reg
number in val.start.
From-SVN: r98938
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* lambda.h (lambda_vector_min_nz): Likewise.
* langhooks.h (struct lang_hooks_for_types,
struct lang_hooks): Likewise.
* output.h (assemble_integer, this_is_asm_operands): Likewise.
* tree.h: Likewise.
* vec.h: Likewise.
* tree-flow-inline.h (relink_imm_use): Use gcc_assert.
* optabs.c (prepare_cmp_insn, emit_cmp_and_jump_insns): Reword
comments to avoid 'abort'. Use gcc_assert as necessary.
* opts.c (common_handle_option): Likewise.
* pretty-print.c (pp_base_format_text): Likewise.
* print-rtl.c (print_rtx): Likewise.
* read-rtl.c (read_rtx_filename, read_rtx_1): Likewise.
* regmove.c (try_auto_increment): Likewise.
* reload.c (find_valid_class, find_reloads_toplev,
find_equiv_reg): Likewise.
* reload1.c (reload, forget_old_reloads_1, function_invariant_p,
merge_assigned_reloads): Likewise.
* tree-inline.c (inline_forbidden_p_1,
estimate_num_insns_1): Likewise.
* tree-optimize.c (execute_todo): Likewise.
* tree-outof-ssa.c (eliminate_phi): Likewise.
* tree-ssa-alias.c (add_pointed_to_expr): Likewise.
* tree-ssa-ccp.c (maybe_fold_stmt_indirect): Likewise.
* tree-ssa-operands.c (parse_ssa_operands,
get_indirect_ref_operands, create_ssa_artficial_load_stmt): Likewise.
* tree-ssa-pre.c (find_or_generate_expression): Likewise.
* tree-ssanames.c (release_ssa_name): Likewise.
* tree.c (int_bit_position, int_byte_position, tree_low_cst,
walk_tree): Likewise.
* tree-ssa-operands.c (verify_abort): Fold into ..
(verify_imm_links): ... here.
From-SVN: r98519
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