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-ffinite-math-only is given, and to 0 otherwise.
2002-08-01 Toon Moene <toon@moene.indiv.nluug.nl>
* c-common.c (cb_register_builtins): Set
__FINITE_MATH_ONLY__ to 1 if -ffinite-math-only
is given, and to 0 otherwise.
* combine.c (simplify_if_then_else): HONOR_NANS
implies FLOAT_MODE_P.
From-SVN: r55932
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2002-07-30 Toon Moene <toon@moene.indiv.nluug.nl>
* flags.h: Declare flag_finite_math_only.
Use it in definition of HONOR_NANS and
HONOR_INFINITIES.
* c-common.c (cb_register_builtins): Emit
__FINITE_MATH_ONLY__ when flag_finite_math_only
is set.
* combine.c (simplify_if_then_else): If
flag_finite_math_only is set, a == b has a
definite value.
* toplev.c: Initialize flag_finite_math_only.
(set_flags_fast_math): Set it on -ffast-math.
(flag_fast_math_set_p): Test it.
doc:
* invoke.texi: Document -ffinite-math-only.
f:
* com.c (ffe_init_options): Set
flag_finite_math_only.
* invoke.texi: Document -fno-finite-math-only.
From-SVN: r55887
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* combine.c (try_combine): When converting a paradoxical subreg
to an extension, take LOAD_EXTEND_OP into account.
From-SVN: r55404
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gcc-2.95.3)
PR c/2454
* combine.c (nonzero_bits): LOAD_EXTEND_OP should only apply
to SUBREGs of MEMs. (num_sign_bit_copies): Likewise.
From-SVN: r55386
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* combine.c (gen_lowpart_for_combine): Handle vector modes.
Supply non-VOID mode to simplify_gen_subreg.
From-SVN: r55375
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signed/unsigned comparison warning.
* combine.c (combine_simplify_rtx): Add an explicit cast
to avoid signed/unsigned comparison warning.
(simplify_if_then_else): Likewise.
(extended_count): Likewise.
(simplify_shift_const): Likewise.
(simplify_comparison): Likewise.
From-SVN: r55329
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"int" or "rtx"...
* combine.c (struct_undo): Change types of recorded substitutions
to be either "int" or "rtx", instead of "unsigned int" and "rtx".
(do_SUBST_INT): Change types of the substitution from unsigned int
to int, to avoid compilation warning from SUBST_INT's only caller.
(make_extraction): Add cast to avoid compilation warning.
(force_to_mode): Remove cast to avoid compilation warning.
From-SVN: r55221
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* combine.c (combine_simplify_rtx): Pass the mode of the
shift count, not the shift operation when trying to simplify
a shift on a SHIFT_COUNT_TRUNCATED target.
From-SVN: r55085
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From-SVN: r54846
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From-SVN: r54839
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2002-06-05 David S. Miller <davem@redhat.com>
Delete SEQUENCE rtl usage outside of reorg and ssa passes.
* rtl.h (gen_sequence, emit_insns, emit_insns_before,
emit_insns_before_scope, emit_insns_after,
emit_insns_after_scope): Delete declaration.
* ada/misc.c (insert_code_for): Use emit_insn* instead of
emit_insns_foo.
* config/alpha/alpha.c (alpha_set_memflags_1): Abort on SEQUENCE.
(alpha_set_memflags): Fix comment.
(set_frame_related_p): Use get_insns instead of gen_sequence.
* config/alpha/alpha.md (setjmp receiver splitter): Avoid
emitting no insns.
* config/arm/arm.c (arm_finalize_pic): Use get_insns instead of
gen_sequence.
(arm_gen_load_multiple, arm_gen_store_multiple): Likewise.
* config/fr30/fr30.c (fr30_move_double): Likewise.
* config/i386/i386.c (ix86_expand_int_movcc, ix86_expand_movstr):
Likewise.
* config/ia64/ia64.c (spill_restore_mem): Likewise.
* config/ia64/ia64.md (conditional move spliiter): Avoid emitting
no insns.
* config/m32r/m32r.c (gen_split_move_double): Use get_insns
instead of gen_sequence.
* config/mips/mips.c (embedded_pic_fnaddr_reg): Likewise.
(mips_expand_prologue, mips16_gp_pseudo_reg): Likewise.
* config/sh/sh.c (sh_need_epilogue): Likewise.
* config/sparc/sparc.md (current_function_calls_alloca, flat): New
attributes.
(setjmp pattern and split): Use them to avoid splitter which emits
no RTL.
* genattrtab.c (main): Emit include of function.h
* config/stormy16/stormy16.c (xstormy16_split_cbranch): Use
get_insns instead of gen_sequence.
* config/cris/cris.c (cris_split_movdx): Likewise.
* emit-rtl.c (emit_insns*): Kill.
(try_split): Expect insn list instead of SEQUENCE.
(make_jump_insn_raw, make_call_insn_raw): Fix comments.
(emit_*insn*): Reimplement to work with INSN lists and PATTERNs.
Make them abort if a SEQUENCE is given and RTL checking is
enabled.
(emit_*_scope): Don't forget to set scope on final insn.
(gen_sequence): Move from here...
* ssa.c (gen_sequence): To here as private function.
* builtins.c (expand_builtin_apply_args): Use emit_insn_foo, fix
comments.
(expand_builtin_return, expand_builtin_mathfn): Likewise.
(expand_builtin_strlen): Use get_insns instead of gen_sequence.
(expand_builtin_saveregs): Use emit_insn_foo, fix comments.
(expand_builtin_expect_jump): Use get_insns and fix comments.
* calls.c (try_to_integrate): Use emit_insn_foo.
(expand_call, emit_library_call_value_1): Likewise.
* expr.c (emit_queue): Handle insn lists instead of SEQUENCE.
(emit_move_insn_1): Use get_insns instead of gen_sequence.
(expand_expr): Use emit_insn_foo.
* cfgrtl.c (commit_one_edge_insertion): Use emit_insn_foo.
* except.c (build_post_landing_pads): Likewise.
* flow.c (attempt_auto_inc): Likewise.
* stmt.c (expand_fixup, fixup_gotos, expand_nl_handler_label,
expand_nl_goto_receivers, expand_decl_cleanup): Likewise.
* function.c (fixup_var_refs_insn): Use get_insns instead of
gen_sequence.
(fixup_var_refs_1): Likewise and expect insn list from gen_foo.
(fixup_memory_subreg): Use get_insns instead of gen_sequence.
(fixup_stack_1, purge_addressof_1, expand_main_function,
get_arg_pointer_save_area): Likewise.
(optimize_bit_field, instantiate_virtual_regs_1, assign_parms,
expand_function_end): Use emit_insn_foo.
(record_insns, keep_stack_depressed): Work with insn list instead
of SEQUENCE, fix comments.
* ifcvt.c (noce_emit_store_flag, noce_try_store_flag,
noce_try_store_flag_constants, noce_try_store_flag_inc,
noce_try_store_flag_mask, noce_emit_cmove, noce_try_cmove_arith,
noce_try_minmax, noce_try_abs): Use emit_insn_foo.
(noce_process_if_block): Use get_insns instead of gen_sequence.
* optabs.c (add_equal_note): Work with insn list, fix comments.
(expand_binop): Expect insn list from GEN_FCN(), use emit_insn_foo.
(expand_unop, expand_complex_abs, expand_unop_insn,
expand_no_conflict_block): Likewise.
(gen_move_insn): Use get_insns instead of gen_sequence.
(gen_cond_trap): Likewise.
* integrate.c (copy_rtx_and_substitute): Likewise.
(emit_initial_value_sets): Use emit_insn_foo.
* reload1.c (emit_output_reload_insns, emit_reload_insns): Likewise.
(fixup_abnormal_edges): Avoid losing REG_NOTES more intelligently
now that RTL generators give insn lists.
* sibcall.c (replace_call_placeholder): Use emit_insn_foo.
* doloop.c (doloop_modify, doloop_modify_runtime): Use get_insns
instead of gen_sequence.
(doloop_optimize): Work with insn lists instead of SEQUENCE rtl.
* explow.c (emit_stack_save, emit_stack_restore): Use get_insns
instead of gen_sequence.
* loop.c (move_movables, emit_prefetch_instructions,
gen_add_mult, check_dbra_loop, gen_load_of_final_value):
Likewise.
(loop_regs_update): Work with insn list instead of SEQUENCE rtl.
(product_cheap_p): Likewise, and add commentary about RTL wastage
here.
* lcm.c (optimize_mode_switching): Use get_insns instead of
gen_sequence.
* profile.c (gen_edge_profiler): Likewise.
* regmove.c (copy_src_to_dest): Likewise.
* reg-stack.c (compensate_edge): Likewise and fix comment.
* gcse.c (process_insert_insn): Likewise.
(insert_insn_end_bb): Work with insn list instead of SEQUENCE rtl.
* jump.c (delete_prior_computation): Update comment.
* genemit.c (gen_expand, gen_split, main): Use get_insns instead
of gen_sequence, update comments to match.
* recog.c (peephole2_optimize): Work with insn lists instead of
SEQUENCE rtl.
* sched-vis.c (print_pattern): Abort on SEQUENCE.
* unroll.c (unroll_loop, find_splittable_givs, final_giv_value):
Use get_insns instead of gen_sequence.
(copy_loop_body): Likewise and don't emit dummy NOTE.
* genrecog.c: Don't mention SEQUENCE rtl in comments.
* combine.c (try_combine): Expect insn lists from split generator.
* reorg.c (relax_delay_slots): Emit SEQUENCE into insn list by
hand.
From-SVN: r54497
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with optimization)
PR optimization/6842
* combine.c (combine_simplify_rtx) [SUBREG]: Don't ICE if VOIDmode
operand subreg cannot be simplified.
* gcc.dg/20020531-1.c: New test.
From-SVN: r54462
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* emit-rtl.c (init_emit): Add hard registers to regno_reg_rtx.
* combine.c (move_deaths): Use regno_reg_rtx for hard regs rather
than creating a new register.
(distribute_notes): Likewise.
* df.c (df_reg_use_gen): Likewise.
(df_reg_clobber_gen): Likewise.
(df_ref_record): Likewise.
* expr.c (use_regs): Likewise.
* flow.c (propagate_one_insn): Likewise.
(mark_set_1): Likewise.
(mark_used_reg): Likewise.
* reload.c (emit_reload_insns): Likewise.
From-SVN: r54358
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* loop.c (emit_prefetch_instructions): Properly place the address computation.
* basic-block.h (basic_block_for_insn, BLOCK_FOR_INSN): Kill.
(set_block_for_insn): Turn into macro.
* cfgbuild.c (find_basic_block): Do not clear basic_block_for_insn.
* cfglayout.c (insn_scopes): Kill.
(scope_to_insns_initialize): Do not use insn_scopes.
(scope_to_insns_finalize): Likewise.
(duplicate_insn_chain): Likewise.
(cfg_layout_initialize, cfg_layout_finalize): Do not turn scopes to notes.
* cfgrtl.c (basic_block_for_insn): Kill.
(delete_insn_and_edges, delete_insn_chain_and_edges): Simplify.
(create_basic_block_structure): Use reorder_insns.
(compute_bb_for_insn): Do not use basic_block_for_insn.
(merge_blocks_nomove): Likewise.
(update_bb_for_insn): Likewise.
(verify_flow_info): Likewise.
(set_block_for_insn): Kill.
* combine.c (try_combine): Update gen_rtx_INSN call.
* emit-rtl.c (gen_label_rtx): Update gen_rtx_CODE_LABEL call.
(mark_insn_raw, make_jump_insn_raw, make_call_insn_raw): Clear
scopes and BBs.
(add_insn_after, add_insn_before, remove_insn, reorder_insns): Simplify.
(emit_note_before, emit_note_after, emit_line_note_after, emit_note):
Clear BB.
(emit_insns_after): Simplify.
(emit_copy_of_insn_after): Copy scope.
* final.c (final_start_function): Lower scopes.
* flow.c (check_function_return_warnings): Do not rely on deleted insn.
* integrate.c (copy_insn_list): Cope scopes.
* jump.c (duplicate_loop_exit_test): LIkewise; simplify.
* loop.c (loop_optimize): Do not care block notes.
* print-rtl.c (print_rtx): Print BB.
* recog.c (apply_change_group): Simplify.
* rtl.c (copy_rtx): Handle 'B'.
* rtl.def (INSN, CALL_INSN, JUMP_INSN, NOTE): Add extra fields.
* rtl.h (Field accessors): Update indexes.
* sched-ebb.c (schedule_ebbs): Do not lower notes.
* sched-rgn.c (schedule_insns): Likewise.
* toplev.c (rest_of_compilation): Lower notes.
* unroll.c (unroll_loop): Do not care scoping notes.
(copy_loop_body): Copy scopes.
From-SVN: r54188
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* basic-block.h (last_basic_block): Defined as synonym for
n_basic_blocks.
* cfganal.c (mark_dfs_back_edges, flow_reverse_top_sort_order_compute,
flow_depth_first_order_compute, flow_preorder_transversal_compute,
flow_dfs_compute_reverse_init): Replaced relevant occurences of
n_basic_blocks with last_basic_block.
* cfgbuild.c (make_edges): Likewise.
* cfgloop.c (flow_loop_scan, flow_loops_find): Likewise.
* cfgrtl.c (verify_flow_info, purge_all_dead_edges): Likewise.
* combine.c (combine_instructions): Likewise.
* df.c (df_alloc, df_analyse_1, df_analyse, iterative_dataflow_sbitmap,
iterative_dataflow_bitmap): Likewise.
* dominance.c (init_dom_info, calc_dfs_tree_nonrec, calc_dfs_tree,
calc_idoms, idoms_to_doms): Likewise.
* flow.c (update_life_info_in_dirty_blocks, free_basic_block_vars):
Likewise.
* gcse.c (gcse_main, alloc_gcse_mem, compute_local_properties,
compute_hash_table, expr_reaches_here_p, one_classic_gcse_pass,
one_cprop_pass, compute_pre_data, pre_expr_reaches_here_p,
one_pre_gcse_pass, compute_transpout, delete_null_pointer_checks_1,
delete_null_pointer_checks, compute_code_hoist_vbeinout,
hoist_expr_reaches_here_p, hoist_code, one_code_hoisting_pass,
compute_store_table, build_store_vectors): Likewise.
* haifa-sched.c (sched_init): Likewise.
* ifcvt.c (if_convert): Likewise.
* lcm.c (compute_antinout_edge, compute_laterin, compute_insert_delete,
pre_edge_lcm, compute_available, compute_nearerout,
compute_rev_insert_delete, pre_edge_rev_lcm, optimize_mode_switching):
Likewise.
* predict.c (estimate_probability, process_note_prediction,
note_prediction_to_br_prob): Likewise.
* profile.c (GCOV_INDEX_TO_BB, BB_TO_GCOV_INDEX): Likewise.
* recog.c (split_all_insns, peephole2_optimize): Likewise.
* regrename.c (copyprop_hardreg_forward): Likewise.
* resource.c (init_resource_info): Likewise.
* sched-rgn.c (build_control_flow, find_rgns, compute_trg_info,
init_regions, schedule_insns): Likewise.
* ssa-ccp.c (ssa_const_prop): Likewise.
* ssa-dce.c (ssa_eliminate_dead_code): Likewise.
* ssa.c (compute_dominance_frontiers,
compute_iterated_dominance_frontiers, convert_to_ssa): Likewise.
* df.c (df_refs_unlink): Fix FOR_EACH_BB usage (in #if 0'ed code)
* gcse.c (alloc_rd_mem, alloc_avail_expr_mem): Use n_blocks for vector
sizes consistently.
From-SVN: r53924
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* combine.c (combine_instructions): Do not indent #if for
traditional C.
From-SVN: r53891
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From-SVN: r53873
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over basic block chain.
* bb-reorder.c (make_reorder_chain, make_reorder_chain_1):
Use FOR_EACH_BB macros to iterate over basic block chain.
* cfg.c (clear_edges, clear_bb_flags, dump_flow_info,
alloc_aux_for_blocks, clear_aux_for_blocks, alloc_aux_for_edges):
Likewise.
* cfganal.c (set_edge_can_fallthru_flag, flow_call_edges_add,
find_unreachable_blocks, create_edge_list, verify_edge_list,
remove_fake_edges, add_noreturn_fake_exit_edges,
flow_preorder_transversal_compute, flow_dfs_compute_reverse_execute):
Likewise.
* cfgbuild.c (make_edges, find_basic_blocks, find_many_sub_basic_blocks,
find_sub_basic_blocks): Likewise.
* cfgcleanup.c (try_optimize_cfg, delete_unreachable_blocks):
Likewise.
* cfglayout.c (record_effective_endpoints, cleanup_unconditional_jumps):
Likewise.
* cfgloop.c (flow_loops_cfg_dump, flow_loops_find):
Likewise.
* cfgrtl.c (compute_bb_for_insn, tidy_fallthru_edges,
commit_edge_insertions, commit_edge_insertions_watch_calls,
print_rtl_with_bb, verify_flow_info, purge_all_dead_edges): Likewise.
* combine.c (combine_instructions, reg_dead_at_p): Likewise.
* conflict.c (conflict_graph_compute): Likewise.
* df.c (df_bitmaps_alloc, df_bitmaps_free, df_alloc, df_analyse_1,
df_modified_p, df_refs_unlink, df_dump): Likewise.
* dominance.c (calc_dfs_tree, calculate_dominance_info): Likewise.
* final.c (compute_alignments): Likewise.
* flow.c (update_life_info, update_life_info_in_dirty_blocks,
delete_noop_moves, calculate_global_regs_live, allocate_bb_life_data,
count_or_remove_death_notes): Likewise.
* gcse.c (oprs_unchanged_p, record_last_reg_set_info,
compute_hash_table, compute_kill_rd, compute_rd, compute_ae_kill,
classic_gcse, compute_transp, cprop, compute_pre_data,
compute_transpout, invalidate_nonnull_info,
delete_null_pointer_checks_1, delete_null_pointer_checks,
compute_code_hoist_vbeinout, hoist_code, compute_ld_motion_mems,
compute_store_table, build_store_vectors, store_motion): Likewise.
* global.c (global_conflicts, mark_elimination): Likewise.
* graph.c (print_rtl_graph_with_bb): Likewise.
* haifa-sched.c (sched_init): Likewise.
* ifcvt.c (if_convert): Likewise.
* lcm.c (compute_antinout_edge, compute_laterin, compute_insert_delete,
compute_available, compute_nearerout, compute_rev_insert_delete,
optimize_mode_switching): Likewise.
* local-alloc.c (local_alloc, update_equiv_regs): Likewise.
* predict.c (estimate_probability, note_prediction_to_br_prob,
propagate_freq, counts_to_freqs, expensive_function_p,
estimate_bb_frequencies): Likewise.
* profile.c (instrument_edges, get_exec_counts,
compute_branch_probabilities, compute_checksum, branch_prob,
find_spanning_tree): Likewise.
* recog.c (split_all_insns, peephole2_optimize): Likewise.
* reg-stack.c (reg_to_stack, convert_regs_entry, convert_regs):
Likewise.
* regclass.c (scan_one_insn, regclass): Likewise.
* regmove.c (mark_flags_life_zones, regmove_optimize,
record_stack_memrefs): Likewise.
* regrename.c (regrename_optimize, copyprop_hardreg_forward): Likewise.
* reload1.c (reload, reload_combine, fixup_abnormal_edges): Likewise.
* resource.c (find_basic_block): Likewise.
* sched-ebb.c (schedule_ebbs): Likewise.
* sched-rgn.c (is_cfg_nonregular, build_control_flow,
find_single_block_region, find_rgns, schedule_insns)
* sibcall.c (optimize_sibling_and_tail_recursive_call)
* ssa-ccp.c (optimize_unexecutable_edges,
ssa_ccp_df_delete_unreachable_insns): Likewise.
* ssa-dce.c (ssa_eliminate_dead_code): Likewise.
* ssa.c (find_evaluations, compute_dominance_frontiers_1,
rename_block, convert_to_ssa, compute_conservative_reg_partition,
compute_coalesced_reg_partition, rename_equivalent_regs,
convert_from_ssa): Likewise.
* config/ia64/ia64.c (emit_predicate_relation_info, process_epilogue,
process_for_unwind_directive): Likewise.
* df.c (FOR_ALL_BBS): Removed.
* gcse.c (struct null_pointer_info): Type of current_block field
changed.
(struct reg_avail_info): Type of last_bb field changed.
* config/ia64/ia64.c (block_num): Removed.
(need_copy_state): Type changed.
(last_block): New.
From-SVN: r53804
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* combine.c (force_to_mode): Use gen_int_mode.
Don't clear CONST_INT bits outside of mode.
* gcc.dg/20020517-1.c: New test.
From-SVN: r53750
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* bb-reorder.c (make_reorder_chain_1): Modified.
* cfganal.c (can_fallthru, flow_call_edges_add,
flow_preorder_transversal_compute): Modified.
* cfgbuild.c (make_edges, find_basic_blocks, find_many_sub_basic_blocks,
find_sub_basic_blocks): Modified.
* cfgcleanup.c (try_simplify_condjump, try_optimize_cfg): Modified.
* cfglayout.c (skip_insns_after_block, fixup_reorder_chain,
fixup_fallthru_exit_predecessor, cfg_layout_redirect_edge): Modified.
* cfgrtl.c (tidy_fallthru_edges, verify_flow_info): Modified.
* combine.c (this_basic_block): Type changed to basic_block.
(combine_instructions, set_nonzero_bits_and_sign_copies, try_combine,
nonzero_bits, num_sign_bit_copies, get_last_value_validate,
get_last_value, distribute_notes, distribute_links): Modified.
* final.c (compute_alignments): Modified.
* flow.c (regno_uninitialized, regno_clobbered_at_setjmp): Modified.
* function.c (thread_prologue_and_epilogue_insns): Modified.
* gcse.c (compute_code_hoist_vbeinout): Modified.
* global.c (build_insn_chain): Modified.
* ifcvt.c (find_if_block, find_cond_trap): Modified.
* predict.c (last_basic_block_p, note_prediction_to_br_prob): Modified.
* regmove.c (regmove_optimize): Modified.
* resource.c (find_basic_block): Modified.
* sched-ebb.c (schedule_ebbs): Modified.
* ssa-dce.c (find_control_dependence, find_pdom): Modified.
From-SVN: r53695
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From-SVN: r53671
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From-SVN: r53537
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From-SVN: r53531
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From-SVN: r53522
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* emit-rtl.c (global_rtl): Update comment.
(const_double_htab, const_double_htab_hash,
const_double_htab_hash, lookup_const_double): New.
(const_int_htab_hash, const_int_htab_eq): Remove const
qualifiers, which cause tons of warnings with RTL checking on.
(gen_rtx_CONST_DOUBLE): Deleted.
(const_double_from_real_value): New function - bears some
resemblance to the former immed_real_const_1.
(immed_double_const): Moved here from varasm.c and
simplified.
(gen_rtx_REG): Make REGNO unsigned to squelch warnings.
(gen_rtx_SUBREG): Use gen_rtx_raw_SUBREG.
(gen_rtx): Use immed_double_const.
(init_emit_once): Initialize the const_double_htab. Use
REAL_VALUE_FROM_INT where possible. Can now use
CONST_DOUBLE_FROM_REAL_VALUE when setting up const_tiny_rtx.
* varasm.c (struct varasm_status): Remove x_const_double_chain.
(const_double_chain, immed_real_const, clear_const_double_mem): Delete.
(immed_double_const, immed_real_const_1): Moved to emit-rtl.c.
(init_varasm_status, mark_varasm_status): Don't touch
x_const_double_chain.
* output.h: Delete prototype for clear_const_double_mem.
* real.h: Make REAL_VALUE_TYPE a macro again. Remove leading
'0' slot from all CONST_DOUBLE_FORMAT definitions. Prototype
const_double_from_real_value, not immed_real_const_1, and use
it to define CONST_DOUBLE_FROM_REAL_VALUE. Define new macro
CONST_DOUBLE_ATOF.
* rtl.h (CONST_DOUBLE_CHAIN): Kill.
(CONST_DOUBLE_LOW, CONST_DOUBLE_HIGH): Adjust.
(gen_rtx_CONST_DOUBLE, immed_real_const): Delete prototypes.
(gen_rtx_REG): Second arg is unsigned.
* gengenrtl.c (special_rtx): Take out CONST_DOUBLE.
(excluded_rtx): New, return true for CONST_DOUBLE.
(genmacro): Write nothing for excluded codes.
* combine.c (combine_simplify_rtx): Use CONST_DOUBLE_FROM_REAL_VALUE.
* expr.c (expand_expr): Likewise.
* ggc-common.c (ggc_mark_rtx_children_1): Don't mark the
CONST_DOUBLE_CHAIN.
* toplev.c (rest_of_compilation): Don't call
clear_const_double_mem.
* config/rs6000/rs6000.c (rs6000_float_const): Delete.
(rs6000_hash_constant): Remove CONST_DOUBLE special case.
(toc_hash_eq): Remove CONST_DOUBLE and LABEL_REF special cases.
* config/rs6000/rs6000-protos.h: Don't prototype rs6000_float_const.
* config/c4x/c4x.md, config/rs6000/rs6000.md: Use CONST_DOUBLE_ATOF.
* config/dsp16xx/dsp16xx.md, config/mips/mips.md,
config/pa/pa.md: Use CONST_DOUBLE_FROM_REAL_VALUE.
* config/sparc/sparc.md, config/sparc/sparc.c: Use immed_double_const.
From-SVN: r53409
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* combine.c: Fix comment formatting.
* expr.c: Likewise.
* genautomata.c: Likewise.
* stmt.c: Likewise.
* tree.h: Likewise.
From-SVN: r53044
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2002-04-29 Franz Sirl <Franz.Sirl-kernel@lauterbach.com>
* combine.c (find_split_point): Use gen_int_mode.
From-SVN: r52916
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From-SVN: r52467
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PR c/6223
* combine.c (if_then_else_cond): Use trunc_int_for_mode on nz.
* gcc.dg/20020411-1.c: New test.
From-SVN: r52176
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paradoxical subreg when...
* combine.c (simplify_comparison): Avoid narrowing a comparison
with a paradoxical subreg when doing so would drop signficant bits.
Co-Authored-By: Hans-Peter Nilsson <hp@bitrange.com>
From-SVN: r51785
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PR optimization/6086
* combine.c (combine_simplify_rtx): If simplify_rtx failed because
of SUBREG of volatile MEM or because the MEM was mode dependent,
return CLOBBER instead of unmodified SUBREG.
From-SVN: r51606
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needed.
* combine.c (set_nonzero_bits_and_sign_copies): Don't call
nonzero_bits if not needed.
(nonzero_bits) [XOR]: Likewise.
(nonzero_bits) [REG]: Use reg_last_set_nonzero_bits even if
reg_last_set_mode and mode are both MODE_INT, but not equal.
(record_value_for_reg): Compute reg_last_set_nonzero_bits
in nonzero_bits_mode for MODE_INT modes.
From-SVN: r51551
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to force_to_mode bug)
* combine.c (simplify_and_const_int): Make sure to apply mask
when force_to_mode returns a constant integer. PR3311.
From-SVN: r51532
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overflow of constant.
* combine.c (simplify_comparison <ASHIFTRT, LSHIFTRT>): Correct
test for overflow of constant.
From-SVN: r51349
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on CONST_INTs.
* combine.c (simplify_comparison): When widening modes, ignore
sign extension on CONST_INTs.
From-SVN: r51216
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* emit-rtl.c (gen_int_mode): New function.
* rtl.h: Prototype for it.
* combine.c (make_extraction, simplify_comparison), expmed.c
(store_bit_field, expand_mult_highpart, expand_divmod), expr.c
(convert_modes, store_field), optabs.c (expand_fix),
simplify-rtx.c (neg_const_int, simplify_unary_real),
* config/rs6000/rs6000.c, config/rs6000/rs6000.md:
Use it instead of GEN_INT (trunc_int_for_mode (...)).
From-SVN: r51030
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From-SVN: r50533
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From-SVN: r50491
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fix return value.
* cfgrtl.c (purge_dead_edges): Set BB_DRITY flags if edge has been
removed; fix return value.
* combine.c (combine_instructions): Dirtify blocks where we failed to
update liveness; purge dead edges; use update_life_info_in_dirty_blocks.
* toplev.c (rest_of_compilation): Do not purge_dead_edges after combine.
From-SVN: r50454
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* defaults.h (MODE_HAS_NANS, MODE_HAS_INFINITIES): New.
(MODE_HAS_SIGNED_ZEROS, MODE_HAS_SIGN_DEPENDENT_ROUNDING): New.
* flags.h (HONOR_NANS, HONOR_INFINITIES, HONOR_SIGNED_ZEROS): New.
(HONOR_SIGN_DEPENDENT_ROUNDING): New.
* builtins.c (expand_builtin_mathfn): Use HONOR_NANS.
* c-common.c (truthvalue_conversion): Reduce x - y != 0 to x != y
unless x and y could be infinite.
(expand_unordered_cmp): New, mostly split from expand_tree_builtin.
Check that the common type of both arguments is a real, even for
targets without unordered comparisons. Allow an integer argument
to be compared against a real.
(expand_tree_builtin): Use expand_unordered_cmp.
* combine.c (combine_simplify_rtx): Use the new HONOR_... macros.
* cse.c (fold_rtx): Likewise. Fix indentation.
* fold-const.c (fold_real_zero_addition_p): New.
(fold): Use it, and the new HONOR_... macros.
* ifcvt.c (noce_try_minmax): Use the new HONOR_... macros.
* jump.c (reversed_comparison_code_parts): After searching for
the true comparison mode, use HONOR_NANS to decide whether it
can be safely reversed.
(reverse_condition_maybe_unordered): Remove IEEE check.
* simplify-rtx.c (simplify_binary_operation): Use the new macros
to decide which simplifications are valid. Allow the following
simplifications for IEEE: (-a + b) to (b - a), (a + -b) to (a - b),
and (a - -b) to (a + b).
(simplify_relational_operation): Use HONOR_NANS.
* doc/tm.texi: Document the MODE_HAS_... macros.
From-SVN: r50401
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compare with constant...
* combine.c (simplify_comparison): If simplifying a logical shift
right and compare with constant, force the comparison to unsigned.
From-SVN: r50400
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into account as third type of extension.
* doc/rtl.texi (SUBREG_PROMOTED_UNSIGNED_P): Change definition
to take ptr_extend into account as third type of extension.
(SUBREG_PROMOTED_UNSIGNED_SET): Definition of new macro to set bit
fields used by SUBREG_PROMOTED_UNSIGNED_P.
* rtl.h (SUBREG_PROMOTED_UNSIGNED_SET): New macro.
(SUBREG_PROMOTED_UNSIGNED_P): Change to return -1 as well as 0 or 1.
* calls.c (precompute_arguments): Use new macro.
(expand_call): Ditto.
* combine.c (nonzero_bits): Ditto.
(record_promoted_value): Ditto.
* expr.c (store_expr): Ditto.
(expand_expr): Ditto.
* function.c (assign_parms): Ditto.
From-SVN: r50174
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* combine.c (do_SUBST): Sanity check substitutions of
CONST_INTs, and reject them in SUBREGs and ZERO_EXTENDs.
(subst): Simplify SUBREG or ZERO_EXTEND instead of SUBSTing a
CONST_INT into its operand.
(known_cond): Likewise, for ZERO_EXTEND.
* simplify-rtx.c (simplify_unary_operation): Fix condition to
allow for simplification of wide modes. Reject CONST_INTs in
ZERO_EXTEND when their actual mode is not given.
From-SVN: r49920
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2002-02-19 Aldy Hernandez <aldyh@redhat.com>
* config/i386/i386.md ("mmx_uavgv8qi3"): Use const_vector.
("mmx_uavgv4hi3"): Same.
("pmulhrwv4hi3"): Same.
* tree-inline.c (walk_tree): Handle vectors.
* c-common.c (constant_expression_warning): Handle vectors.
(overflow_warning): Same.
* sched-deps.c (sched_analyze_2): Handle vectors.
* rtlanal.c (rtx_unstable_p): Handle vectors.
(rtx_varies_p): Same.
(count_occurrences): Same.
(regs_set_between_p): Same.
(modified_between_p): Same.
(modified_in_p): Same.
(volatile_insn_p): Same.
(volatile_refs_p): Same.
(side_effects_p): Same.
(may_trap_p): Same.
(inequality_comparisons_p): Same.
(replace_regs): Same.
(computed_jump_p_1): Same.
* rtl.c (DEF_MACHMODE): Change all definitions to accept 8th
argument.
(inner_mode_array): New.
(copy_rtx): Handle vectors.
(copy_most_rtx): Same.
(rtx_equal_p): Same.
(get_mode_alignment): Adjust for vectors.
* resource.c (mark_referenced_resources): Handle vectors.
(mark_set_resources): Same.
* reload1.c (eliminate_regs): Handle vectors.
(elimination_effects): Same.
(scan_paradoxical_subregs): Same.
* reload.c (subst_reg_equivs): Handle vectors.
* regrename.c (scan_rtx): Handle vectors.
* regclass.c (reg_scan_mark_refs): Handle vectors.
* recog.c (find_single_use_1): Handle vectors.
* local-alloc.c (equiv_init_varies_p): Handle vectors.
(contains_replace_regs): Same.
(memref_referenced_p): Same.
* integrate.c (copy_rtx_and_substitute): Handle vectors.
(subst_constants): Same.
* genattrtab.c (attr_copy_rtx): Handle vectors.
(encode_units_mask): Same.
(clear_struct_flag): Same.
(count_sub_rtxs): Same.
* gcse.c (want_to_gcse_p): Handle vectors.
(oprs_unchanged_p): Same.
(hash_expr_1): Same.
(oprs_not_set_p): Same.
(expr_killed_p): Same.
(compute_transp): Same.
(store_ops_ok): Same.
* function.c (purge_addressof_1): Do not allow paradoxical subregs
of vectors.
(fixup_var_refs_1): Same.
(instantiate_virtual_regs_1): Same.
* fold-const.c (operand_equal_p): Handle vectors.
(fold): Same.
(rtl_expr_nonnegative_p): Same.
* flow.c (mark_used_regs): Handle vectors.
* df.c (df_uses_record): Handle vectors.
* cselib.c (cselib_subst_to_values): Handle vectors.
(cselib_mem_conflict_p): Same.
(hash_rtx): Same.
* cse.c (canon_reg): Handle vectors.
(fold_rt): Same.
(cse_process_notes): Same.
(count_reg_usage): Same.
(canon_hash): Same.
* alias.c (nonlocal_mentioned_p): Add case for CONST_VECTOR.
* combine.c (mark_used_regs_combine): Add case for CONST_VECTOR.
* emit-rtl.c (init_emit_once): Generate const0_rtx for vectors.
(gen_rtx): Handle CONST_VECTOR.
(gen_const_vector_0): New.
(copy_rtx_if_shared): CONST_VECTORs can be shared.
(reset_used_flags): Same.
(copy_insn_1): Same.
(initializer_constant_valid_p): Handle VECTOR_CST.
* doc/c-tree.texi (Expression trees): Document VECTOR_CST.
* doc/rtl.texi (Constants): Document const_vector.
(CONST0_RTX): Update for vectors.
(RTL sharing): Same.
* print-tree.c (print_node): Add case for VECTOR_CST.
* tree.h (TREE_VECTOR_CST_ELTS): New.
(struct tree_vector): New.
(union tree_node): Add vector node.
(build_vector): Add prototype.
* tree.def (VECTOR_CST): New.
* tree.c (build_vector): New.
* expmed.c (make_tree): Handle CONST_VECTOR.
* rtl.h (CONSTANT_P): CONST_VECTORs are constants too.
(CONST_VECTOR_ELT): New.
(CONST_VECTOR_NUNITS): New.
* machmode.h (GET_MODE_INNER): New.
(DEF_MACHMODE): Accept 8th arg.
* machmode.def: Add 8th argument for vector inner mode.
Add inner vector modes for vectors.
* rtl.def (VEC_CONST): Remove.
(CONST_VECTOR): New.
* expr.c (clear_storage): Allow vectors.
(is_zeros_p): Handle VECTOR_CST.
* varasm.c (output_constant_pool): Handle vectors.
(rtx_const): Add veclo and vechi fields.
(kind): Add RTX_VECTOR.
(decode_rtx_const): Add case for vector.
* config/rs6000/rs6000-protos.h: Add zero_constant.
* config/rs6000/rs6000.c (rs6000_emit_move): Handle vector
constants. Force easy vector constants into memory.
(easy_vector_constant): New.
(emit_easy_vector_constant): New.
(rs6000_legitimize_reload_address): Do not generate bad reloads on
darwin.
* config/rs6000/rs6000.md ("altivec_lvx"): Reflect what
instruction does.
("altivec_lvxl"): Same.
(altivec_lvebx): Same.
(altivec_lvehx): Same.
(altivec_lvewx): Same.
("*movv4si_const0"): New.
("*movv4sf_const0"): New.
("*movv8hi_const0"): New.
("*movv16qi_const0"): New.
From-SVN: r49853
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* combine.c (known_cond): After replacing the REG of a SUBREG, try
to simplify it.
From-SVN: r49775
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* combine.c (try_combine): Apply substitutions in
CALL_INSN_FUNCTION_USAGE too.
From-SVN: r49670
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REGNO_POINTER_ALIGN.
* combine.c (nonzero_bits): Re-introduce special case for
sp/fp/ap wrt REGNO_POINTER_ALIGN.
From-SVN: r49501
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* combine.c (force_to_mode): Remove STACK_BIAS code.
(nonzero_bits): Likewise. Replace sp/fp special case with
REGNO_POINTER_ALIGN.
* config/sparc/sparc.h (FRAME_POINTER_REGNUM): Change to SFP.
(HARD_FRAME_POINTER_REGNUM): New.
(FIRST_PSEUDO_REGISTER, REG_CLASS_CONTENTS): Update.
(FIXED_REGS, CALL_USED_REGS): Update.
(REG_ALLOC_ORDER, REGISTER_NAMES): Update.
(CONDITIONAL_REGISTER_USAGE): Update for HFP.
(HARD_REGNO_NREGS): Update for SFP.
(STACK_POINTER_OFFSET): Include bias here ...
(FIRST_PARM_OFFSET): ... not here.
(STACK_BIAS): Remove.
(INIT_EXPANDERS): New.
(STARTING_FRAME_OFFSET): Do not include bias.
(ELIMINABLE_REGS, CAN_ELIMINATE, INITIAL_ELIMINATION_OFFSET): New.
(REGNO_OK_FOR_INDEX_P, REGNO_OK_FOR_BASE_P): Update for SFP.
(REG_OK_FOR_INDEX_P, REG_OK_FOR_BASE_P): Likewise.
* config/sparc/aout.h (DBX_REGISTER_NUMBER): Update for HFP.
* config/sparc/litecoff.h, config/sparc/sol2.h: Likewise.
* config/sparc/sparc.c (mem_min_alignment): Update for HFP.
(sparc_nonflat_function_prologue, epilogue_renumber): Likewise.
(MUST_SAVE_REGISTER): Likewise.
(sparc_flat_function_prologue): Likewise.
(sparc_flat_function_epilogue): Likewise.
(HARD_FRAME_POINTER_MASK): Rename from FRAME_POINTER_MASK.
(sparc_init_modes): SFP is GENERAL_REGS.
(sparc_builtin_saveregs): SFP does not have bias applied.
From-SVN: r49486
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* combine.c (recog_for_combine): Create a dummy insn with PATTERN
pat for recog.
* gcc.dg/20020201-4.c: New test.
From-SVN: r49473
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that might add "1" bits.
* combine.c (simplify_and_const_int): Don't trunc_int_for_mode
"nonzero" as that might add "1" bits. Ensure "constop" is
properly sign extened.
(force_to_mode): Tweak for sign extended constop.
From-SVN: r49112
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