| Age | Commit message (Collapse) | Author | Files | Lines |
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* flow.c (flow_loop_pre_header_scan): Punt if loop enters
from entry block.
From-SVN: r36644
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* cppinit.c (cpp_init): Don't use ANSI prototypes.
* flow.c (flow_dump_loop): Likewise.
(flow_loops_dump): Likewise.
From-SVN: r36480
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From-SVN: r36370
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* flow.c (split_block): Fix update of registers live at
end of split block.
From-SVN: r36343
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2000-09-12 Michael Hayes <mhayes@cygnus.com>
* basic-block.h (LOOP_TREE, LOOP_PRE_HEADER, LOOP_EDGES): New.
(LOOP_EXITS_DOMS, LOOP_ALL): Likewise.
(flow_loops_update): New prototype.
(flow_loops_find): Add flags to prototype.
(struct loop): Add `pre_header_root' and `pre_header_trace' fields.
* flow.c (flow_loop_pre_header_scan): New.
(flow_loop_dump): Dump pre-header root and trace and exit dominators.
(flow_loop_free): Free pre-header root and trace and exit dominators.
(flow_loops_find): New argument flags.
(flow_loops_update): New function.
* toplev.c (rest_of_compilation): Add flag argument to flow_loops_find.
From-SVN: r36333
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* basic-block.h (split_block, update_bb_for_insn): New prototypes.
* flow.c (split_block, update_bb_for_insn): New functions.
From-SVN: r36332
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From-SVN: r36220
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if returns wiht stack pointer depressed.
* flow.c (init_propagate_block_info): Don't mark frame dead at end
of function if returns wiht stack pointer depressed.
From-SVN: r36099
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* flow.c (dump_edge_info): Use ARRAY_SIZE.
* config/alpha/alpha.c (alpha_expand_block_move): Likewise.
From-SVN: r35990
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* basic-block.h (struct loop): Rename `exits' field to
`exit_edges'. Add `entry_edges' and `num_entries' fields.
* flow.c (flow_loop_exit_edges_find): Rename from flow_loop_exits_find.
(flow_loop_entry_edges_find): Add.
(flow_edge_list_print): Rename from flow_exits_print.
(flow_loops_find): Call flow_loop_entry_edges_find.
(flow_loop_dump): Dump entry_edges list.
(flow_loops_free): Free entry_edges.
From-SVN: r35980
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* loop.c (loop_dump_aux, debug_loop): New functions.
(LOOP_BLOCK_NUM_1, LOOP_BLOCK_NUM, LOOP_INSN_UID): New macros.
* flow.c (flow_loops_dump): Add callback parameter.
(flow_loop_dump): Add callback parameter and call it. Move
loop note debugging code to loop_dump_aux.
* basic-block.h (flow_loop_dump): Add callback parameter
(flow_loops_dump): Likewise.
* toplev.c (rest_of_compilation): Add NULL callback function pointer
to call to flow_loops_dump.
From-SVN: r35979
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* optabs.c (init_optabs): Initialize fixtab, fixtrunctab, floattab,
and extendtab within their proper array boundaries.
* emit-rtl.c (init_emit_once): Pass `const_tiny_rtx' with bounds
for the entire array.
* config/arm/arm.c (arm_override_options): Use ARRAY_SIZE.
* config/alpha/alpha.c (alpha_lookup_xfloating_lib_func): Likewise.
* config/avr/avr.c (order_regs_for_local_alloc): Likewise.
* config/fr30/fr30.c (fr30_print_operand): Likewise.
* config/i386/dgux.c (output_options): Likewise.
* config/i386/dgux.h (ASM_FILE_START): Likewise.
* config/m88k/m88k.c (output_options): Likewise.
* config/m88k/m88k.h (ASM_FILE_START): Likewise.
* config/mcore/mcore.c (mcore_output_inline_const_forced,
layout_mcore_frame, handle_structs_in_regs): Likewise.
* config/mips/mips.c (output_block_move): Likewise.
* config/rs6000/rs6000.c (rs6000_override_options,
rs6000_file_start): Likewise.
* config/sparc/sparc.c (sparc_add_gc_roots): Likewise.
* fixinc/fixfixes.c (FIX_TABLE_CT): Likewise.
* fixinc/fixtests.c (TEST_TABLE_CT): Likewise.
* builtins.c (expand_builtin_setjmp): Likewise.
* expr.c (safe_from_p): Likewise.
* flow.c (life_analysis): Likewise.
* fold-const.c (size_int_type_wide): Likewise.
* gcc.c (translate_options, init_spec, set_spec, main): Likewise.
* genattrtab.c (make_length_attrs): Likewise.
* genopinit.c (gen_insn): Likewise.
* genrecog.c (NUM_KNOWN_PREDS, NUM_SPECIAL_MODE_PREDS): Likewise.
* global.c (global_alloc): Likewise.
* local-alloc.c (find_free_reg): Likewise.
* mips-tdump.c (print_symbol): Likewise.
* mips-tfile.c (parse_def, parse_input): Likewise.
* reload1.c (NUM_ELIMINABLE_REGS): Likewise.
* stmt.c (expand_nl_goto_receiver): Likewise.
* stor-layout.c (set_sizetype): Likewise.
* varasm.c (decode_reg_name): Likewise.
* toplev.c (decode_f_option, decode_W_option,
set_target_switch, print_switch_values): Likewise.
(NUM_ELEM): Remove macro.
(display_help, main): s/NUM_ELEM/ARRAY_SIZE/
From-SVN: r35949
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From-SVN: r35879
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before reload.
* flow.c (calculate_global_regs_live): Mark frame pointer live
everywhere before reload.
From-SVN: r35862
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expression.
* flow.c (init_propagate_block_info): Handle SUBREG in a jump
condition expression.
From-SVN: r35835
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From-SVN: r35827
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From-SVN: r35727
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* flow.c (attempt_auto_inc): Remove unused variable `bb'.
(attempt_auto_inc): Suppress parentheses warning.
* function.c (put_reg_into_stack): Remove unused variable `unsigned_p'.
* loop.c (load_mems): Remove `u' suffix in two places.
* config/rs6000/rs6000.c: Remove unnecessary `u' suffixes from
hex constants.
* config/rs6000/rs6000.h: Likewise.
* config/rs6000/sol-c0.c: Prototype some functions. Remove the
__eabi dummy routine.
* config/rs6000/sysv4.h (ASM_DECLARE_FUNCTION_NAME): Remove unused
variable `buf_ptr'.
From-SVN: r35670
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From-SVN: r35631
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of block A.
* flow.c (merge_blocks_nomove): Be more careful about
locating the beginning of block A.
From-SVN: r35623
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* flow.c (life_analysis): Only turn off PROP_LOG_LINKS and
PROP_AUTOINC at -O0. Don't collect alias info at -O0.
(init_propagate_block_info): Don't kill memory stores at -O0.
(mark_set_1, mark_used_regs): Likewise.
From-SVN: r35571
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* tm.texi (LOCAL_REGNO): Document.
* flow.c (LOCAL_REGNO, EPILOGUE_USES): Provide default.
(mark_regs_live_at_end): Don't mark LOCAL_REGNO registers.
* reload1.c (reload): Likewise when considering nonlocal labels.
* config/ia64/ia64.h (LOCAL_REGNO): New.
* config/sparc/sparc.h (LOCAL_REGNO): New.
From-SVN: r35564
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From-SVN: r35542
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* alias.c (mark_constant_function): Use INSN_P.
(init_alias_analysis): Likewise.
* combine.c (combine_instructions): Use INSN_P.
(can_combine_p): Likewise.
(try_combine): Likewise.
(distribute_notes): Likewise.
(distribute_links): Likewise.
* cse.c (cse_around_loop): Use INSN_P.
(invalidate_skipped_block): Likewise.
(cse_set_around_loop): Likewise.
(cse_end_of_basic_block): Likewise.
(delete_trivially_dead_insns): Likewise.
* emit-rtl.c (unshare_all_rtl_again): Use INSN_P.
(unshare_all_rtl_1): Likewise.
(next_cc0_user): Likewise.
(try_split make_insn_raw): Likewise.
(remove_unnecessary_notes): Likewise.
* final.c (shorten_branches): Use INSN_P.
(leaf_renumber_regs): Likewise.
(leaf_renumber_regs_insn): Likewise.
* flow.c (find_label_refs): Use INSN_P.
(verify_wide_reg): Likewise.
(notice_stack_pointer_modification): Likewise.
(count_or_remove_death_notes): Likewise.
(verify_flow_info): Likewise.
(clear_log_links): Likewise.
* function.c (fixup_var_refs_insns): Use INSN_P.
(compute_insns_for_mem): Likewise.
* gcse.c (alloc_gcse_mem): Use INSN_P.
(compute_sets): Likewise.
(compute_hash_table): Likewise.
(classic_gcse): Likewise.
(cprop): Likewise.
(insert_insn_end_bb): Likewise.
(delete_null_pointer_checks_1): Likewise.
* global.c (expand_preferences): Use INSN_P.
(build_insn_chain): Likewise.
* graph.c (node_data): Use INSN_P.
* haifa-sched.c (priority): Use INSN_P.
(rm_line_notes): Likewise.
(rm_other_notes): Likewise.
(find_insn_reg_weight): Likewise.
(init_target_units): Likewise.
(schedule_block): Likewise.
(compute_block_forward_dependences): Likewise.
(debug_dependencies): Likewise.
(set_priorities): Likewise.
* integrate.c (function_cannot_inline_p): Use INSN_P.
(save_parm_insns): Likewise.
(copy_insn_list): Likewise.
* jump.c (mark_all_labels): Use INSN_P.
(never_reached_warning): Likewise.
* lcm.c (optimize_mode_switching): Use INSN_P.
* local-alloc.c (validate_equiv_mem): Use INSN_P.
(memref_used_between_p): Likewise.
(update_equiv_regs): Likewise.
(block_alloc): Likewise.
(no_conflict_p): Likewise.
* loop.c (scan_loop): Use INSN_P.
(find_and_verify_loops): Likewise.
(count_loop_regs_set): Likewise.
(loop_reg_used_before_p): Likewise.
(strength_reduce): Likewise.
(recombine_givs): Likewise.
(check_dbra_loop): Likewise.
(load_mems): Likewise.
(try_copy_prop): Likewise.
* print-rtl.c (print_rtx): Use INSN_P.
* recog.c (find_single_use): Use INSN_P.
* reg-stack.c (stack_regs_mentioned): Use INSN_P.
(next_flags_user): Likewise.
(swap_rtx_condition): Likewise.
* regmove.c (mark_flags_life_zones): Use INSN_P.
(optimize_reg_copy_1): Likewise.
(optimize_reg_copy_2): Likewise.
(optimize_reg_copy_3): Likewise.
(reg_is_remote_constant_p): Likewise.
(fixup_match_2): Likewise.
(regmove_optimize): Likewise.
(fixup_match_1): Likewise.
* regrename.c (build_def_use): Use INSN_P.
(replace_reg_in_block): Likewise.
(consider_use): Likewise.
* reload.c (find_equiv_reg): Use INSN_P.
* reload1.c (reload): Use INSN_P.
(maybe_fix_stack_asms): Likewise.
(calculate_needs_all_insns): Likewise.
(reload_as_needed): Likewise.
(emit_output_reload_insns): Likewise.
(delete_address_reloads_1): Likewise.
(reload_cse_regs_1): Likewise.
(reload_combine): Likewise.
(reload_cse_move2add): Likewise.
* reorg.c (redundant_insn): Use INSN_P.
(dbr_schedule): Likewise.
* resource.c (find_dead_or_set_registers): Use INSN_P.
(mark_target_live_regs): Likewise.
* rtlanal.c (reg_used_between_p): Use INSN_P.
(reg_referenced_between_p): Likewise.
(reg_set_between_p): Likewise.
(reg_set_p): Likewise.
(single_set): Likewise.
(multiple_sets): Likewise.
(find_last_value): Likewise.
(reg_set_last): Likewise.
(find_reg_note): Likewise.
(find_regno_note): Likewise.
* sibcall.c (sequence_uses_addressof): Use INSN_P.
* simplify-rtx.c (cselib_process_insn): Use INSN_P.
* ssa.c (find_evaluations): Use INSN_P.
(rename_block): Likewise.
(rename_equivalent_regs): Likewise.
* unroll.c (loop_find_equiv_value): Use INSN_P.
(set_dominates_use): Likewise.
* varasm.c (mark_constant_pool): Use INSN_P.
(mark_constants): Likewise.
* config/alpha/alpha.c (alpha_does_function_need_gp): Use INSN_P.
(alphaev4_next_group): Likewise.
(alphaev5_next_group): Likewise.
* config/c4x/c4x.c (c4x_process_after_reload): Use INSN_P.
(c4x_rptb_rpts_p): Likewise.
* config/mips/mips.c (mips16_optimize_gp): Use INSN_P.
* config/rs6000/rs6000.c (uses_TOC): Use INSN_P.
(rs6000_adjust_priority): Likewise.
* config/sh/sh.c (sh_loop_align): Use INSN_P.
(machine_dependent_reorg): Likewise.
(split_branches): Likewise.
* config/tahoe/tahoe.c (tahoe_cmp_check): Use INSN_P.
From-SVN: r35494
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* flow.c (find_auto_inc): Verify that we've got a REG before
peeking at its regno. Fail, don't abort if we can't find
the increment of the desired register.
From-SVN: r35443
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* Makefile.in (OBJS): Added dce.o.
(ssa.o): Updated target to include ssa.h.
(flow.o): Likewise.
(toplev.o): Likewise.
(dce.o): Created target.
* basic-block.h: Added comments.
(INVALID_BLOCK): Added definition.
(connect_infinite_loops_to_exit): Added declaration.
Moved SSA declarations to ssa.h.
* flow.c: Added inclusion of ssa.h.
(struct depth_first_search_dsS, depth_first_search_ds):
Added definitions.
(compute_immediate_postdominators): Added definition.
(connect_infinite_loops_to_exit): Likewise.
(flow_dfs_compute_reverse_init): Likewise.
(flow_dfs_compute_reverse_add_bb): Likewise.
(flow_dfs_compute_reverse_execute): Likewise.
(flow_dfs_compute_reverse_finish): Likewise.
* rtl.h (rtx/in_struct): Added use to determine insn necessity.
(LABEL_P): Added definition.
(JUMP_P): Likewise.
(NOTE_P): Likewise.
(BARRIER_P): Likewise.
(JUMP_TABLE_DATA_P): Likewise.
(INSN_DEAD_CODE_P): Likewise.
* ssa.c: Replaced inclusions with ssa.h inclusion.
(CONVERT_HARD_REGISTER_TO_SSA_P): Moved to ssa.h.
(rename_registers): Removed unnecessary variables.
* ssa.h: Created by moving declarations from ssa.c and
basic-block.h.
* timevar.def: Defined TV_DEAD_CODE_ELIM.
* toplev.c: Added ssa.h inclusion.
(dump_file_index): Added DFI_dce.
(dump_file): Added "dce" entry.
Defined flag_ssa.
(f_options): Added dce entry.
* invoke.texi: Document -fdce. Emphasize experimental status of
-fssa.
Co-Authored-By: Mark Mitchell <mark@codesourcery.com>
From-SVN: r35419
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* rtl.h (enum reg_note): Add REG_MAYBE_DEAD.
* rtl.c (reg_note_name): Add REG_MAYBE_DEAD.
* flow.c (propagate_one_insn): Allow deletion of prologue/epilogue
insns if they have a REG_MAYBE_DEAD note attached.
* config/rs6000/rs6000.c (rs6000_maybe_dead): New function.
(rs6000_emit_load_toc_table): TOC loads may go dead.
From-SVN: r35414
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From-SVN: r35406
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data...
* flow.c (clear_log_links): Nuke global_live_at_start and
global_live_at_end data, since if the log_links stuff is invalid
so is global_live_at_*.
From-SVN: r35396
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* Makefile.in (ssa.o): Updated header files in dependences.
* basic-block.h: Added compute_immediate_postdominators declaration.
* config/i386/i386.h (CONVERT_HARD_REGISTER_TO_SSA_P): Added
definition.
* flow.c (compute_immediate_dominators): Updated comment.
(compute_immediate_postdominators): Added definition.
* rtl.h (HARD_REGISTER_P): Added definition.
* ssa.c: Include additional header files.
(assert): Added definition.
(ssa_rename_to_lookup): Added to reimplement ssa_rename_to to
include select hard registers.
(ssa_rename_to_insert): Likewise.
(ssa_rename_from_initialize): Likewise.
(ssa_rename_from_lookup): Likewise.
(original_register): Likewise.
(ssa_rename_from_insert): Added to reimplement ssa_rename_from to
include select hard reigsters.
(ssa_rename_from_traverse): Likewise.
(ssa_rename_from_free): Likewise.
(ssa_rename_from_print): Likewise.
(ssa_rename_from_print_1): Likewise.
(ssa_rename_from_hash_function): Likewise.
(ssa_rename_from_equal): Likewise.
(ssa_rename_from_delete): Likewise.
(simplify_to_immediate_dominators): Removed in favor of
flow.c:compute_immediate_dominators.
(find_evaluations_1): Modified to work with hard registers.
(insert_phi_node): Likewise.
(insert_phi_nodes): Likewise.
(struct rename_set_data): Updated prev_reg comment.
(create_delayed_rename): Modified to work with hard registers.
(RENAME_NO_RTX): Updated comment.
(apply_delayed_renames): Modified to work with hard registers.
(rename_insn_1): Likewise and added handling of CLOBBER rtls.
(rename_block): Updated to use revised ssa_rename_to interface.
(rename_registers): Updated to use revised ssa_rename_to and
ssa_rename_from interface.
(convert_to_ssa): Revised to use compute_immediate_dominators and
deal with hard registers.
(make_regs_equivalent_over_bad_edges): Modified to work with hard
registers. Added check for illegal unification of hard register.
(make_equivalent_phi_alternatives_equivalent): Modified to work
with hard registers.
(compute_conservative_reg_partition): Likewise.
(coalesce_if_unconflicting): Modified to work with hard registers
and check for conflicting hard registers.
(mark_phi_and_copy_regs): Revised loop to work only on pseudo
registers.
(rename_equivalent_regs_in_insn): Modified to work with hard
registers.
(record_canonical_element_1): Added definition.
(check_hard_regs_in_partition): Added definition.
(convert_from_ssa): Added data structure deallocation and check
for illegal hard register unification.
(conflict_hard_regs_p): Added definition.
* toplev.c (rest_of_compilation): Added comment.
From-SVN: r35384
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From-SVN: r35353
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* basic-block.h (struct loops): New field rc_order.
* flow.c (flow_loops_cfg_dump): Dump rc_order if computed.
(flow_loops_free): Free rc_order.
(flow_depth_first_order_compute): New parameter rc_order.
(flow_loops_find): Allocate rc_order and swap usage with
dfs_order.
From-SVN: r35342
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* cse.c (canon_hash): Handle PRE_MODIFY/POST_MODIFY.
(cse_insn): Likewise.
(addr_affects_sp_p): Likewise.
* expr.c (move_by_pieces): Likewise.
(clear_by_pieces): Likewise.
* gcse.c (oprs_unchanged_p): Likewise.
* haifa-sched.c (sched_analyze_2): Likewise.
* recog.c (offsettable_address_p): Likewise.
* regclass.c (record_address_regs): Likewise.
* reload.c (find_reusable_reload): Likewise.
(push_reload): Likewise.
(operands_match_p): Likewise.
(decompose): Likewise.
(find_reloads_address_1): Likewise.
(find_inc_amount): Likewise.
* reload1.c (elimination_effects): Likewise.
* resource.c (mark_set_resources): Likewise.
* flow.c (attempt_auto_inc): New function; mostly broken out
of find_auto_inc.
(find_auto_inc): Split into two functions and enhanced to
generate POST_MODIFY.
* rtl.def (PRE_MODIFY, POST_MODIFY): Adjust comment.
* rtl.h (count_all_occurrences): Declare.
(HAVE_{PRE,POST}_MODIFY_{DISP,REG}): Provide default of 0 if not
defined.
* rtlanal.c (count_all_occurrences): New function.
* tm.texi (HAVE_POST_MODIFY_DISP, HAVE_PRE_MODIFY_DISP,
HAVE_POST_MODIFY_REG, HAVE_PRE_MODIFY_REG): Document.
* config/ia64/ia64-protos.h (destination_operand): Declare.
* config/ia64/ia64.c (destination_operand): New function.
(ia64_print_operand): Handle POST_MODIFY.
(rtx_needs_barrier): Likewise.
* config/ia64/ia64.h (HAVE_POST_MODIFY_DISP): Define to 1.
(HAVE_POST_MODIFY_REG): Define to 1.
(MAX_REGS_PER_ADDRESS): Change to 2.
(GO_IF_LEGITIMATE_ADDRESS): Accept POST_MODIFY too.
(LEGITIMATE_ADDRESS_REG): New helper macro.
(LEGITIMATE_ADDRESS_DISP): Likewise.
(PREDICATE_CODES): Add entry for destination_operand.
* config/ia64/ia64.md (all mov patterns): Use destination_operand
predicate for operand 0.
From-SVN: r35321
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* rtl.h (NOTE_INSN_BASIC_BLOCK_P): New macro.
* bb-reorder.c (get_next_bb_note): Use NOTE_INSN_BASIC_BLOCK_P.
(get_prev_bb_note): Likewise.
(remove_scope_notes): Likewise.
* flow.c (commit_one_edge_insertion): Likewise.
(merge_blocks_nomove): Likewise.
(verify_flow_info): Likewise.
* gcse.c (insert_insn_end_bb): Likewise.
* reg-stack.c (emit_swap_insn): Likewise.
* ssa.c (first_insn_after_basic_block_note): New function.
(insert_phi_node): Use it.
(rename_block): Likewise.
(eliminate_phi): Likewise.
(make_regs_equivalent_over_bad_edges): Likewise.
(make_equivalent_phi_alternatives_equivalent): Likewise.
(for_each_successor_phi): Likewise.
(convert_from_ssa): Modify phi-node deletion algorithm.
From-SVN: r35296
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2000-07-22 Jeffrey Oldham <oldham@codesourcery.com>
* collect2.c (main): Typo fixed.
* diagnostic.c: Typo fixed.
* dwarf2out.c (dwarf2out_frame_debug_expr): Typo fixed.
* eh-common.h: Typo fixed.
* emit-rtl.c (start_sequence): Typo fixed.
* flow.c (find_label_refs): Typo fixed.
(calculate_global_regs_live): Typo fixed.
(mark_regno_cond_dead): Typo fixed.
(create_edge_list): Typos fixed.
(verify_edge_list): Typo fixed.
* ggc-common.c (ggc_mark_rtx_children): Typo fixed.
* loop.c (strength_reduce): Typo in function name fixed.
* rtl.h: Added comments. Typo in function name fixed.
* rtlanal.c: Typo in function name fixed.
(insn_dependant_p): Rename to ...
(insn_dependent_p): ... this.
(computed_jumo_p): Typo fixed.
From-SVN: r35194
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each basic block are in the insn...
* flow.c (verify_flow_info): Revamp code to verify that the
head and end of each basic block are in the insn chain.
From-SVN: r35160
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and get for analysis.
* flow.c (libcall_dead_p): Use single_set to verify the insn
has only one set and get for analysis.
(propagate_one_insn): Don't pass the PATTERN of the insn.
From-SVN: r35091
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From-SVN: r34774
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From-SVN: r34603
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* flow.c (insn_dead_p): Keep sets to PIC_OFFSET_TABLE_REGNUM
alive before reload.
* haifa-sched.c (struct deps): Add in_post_call_group_p.
(add_dependence): Handle notes between SCHED_GROUP_P insns.
(remove_dependence): Always define.
(set_sched_group_p): New.
(sched_analyze_2): Use it.
(sched_analyze_insn): Don't special-case naked uses. Look for
and extend in_post_call_group_p.
(sched_analyze): Clear stale SCHED_GROUP_P. Set in_post_call_group_p.
(init_deps): Clear in_post_call_group_p.
From-SVN: r34529
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CLASS_CANNOT_CHANGE_MODE_P instead of...
* combine.c (subst): Use CLASS_CANNOT_CHANGE_MODE and
CLASS_CANNOT_CHANGE_MODE_P instead of CLASS_CANNOT_CHANGE_SIZE
and hard-coded tests.
(simplify_set): Likewise.
(gen_lowpart_for_combine): Likewise.
* emit-rtl.c (gen_lowpart_common): Likewise.
* global.c (find_reg): Likewise.
* local-alloc.c (find_free_reg): Likewise.
* recog.c (register_operand): Likewise.
* regclass.c (init_reg_sets_1): Likewise.
(record_operand_costs, regclass): Likewise.
* reload.c (push_reload): Likewise.
* reload1.c (choose_reload_regs): Likewise.
* flow.c (mark_used_regs): Conditionally set REG_CHANGES_MODE.
* local-alloc.c (struct qty): Rename changes_size to changes_mode.
Update all references.
* regs.h (struct reg_info_def): Likewise.
(REG_CHANGES_MODE): Rename from REG_CHANGES_SIZE.
* tm.texi (CLASS_CANNOT_CHANGE_MODE): Document.
(CLASS_CANNOT_CHANGE_MODE_P): Likewise.
* config/alpha/alpha.h (CLASS_CANNOT_CHANGE_MODE): Rename.
(CLASS_CANNOT_CHANGE_MODE_P): New.
* config/mips/mips.h: Likewise.
* config/pa/pa32-regs.h: Likewise.
* config/pa/pa64-regs.h: Likewise.
* config/rs6000/rs6000.h: Likewise.
* config/sh/sh.h: Likewise.
* config/ia64/ia64.h (CLASS_CANNOT_CHANGE_MODE): New.
(CLASS_CANNOT_CHANGE_MODE_P): New.
* config/avr/avr.h (CLASS_CANNOT_CHANGE_SIZE): Remove dead code.
* config/d30v/d30v.h: Likewise.
From-SVN: r34526
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* flow.c (mark_used_regs): Revert last change.
(life_analysis): Remove PROP_AUTOINC if running after reload.
(propagate_one_insn): PROP_AUTOINC is always off after reload.
From-SVN: r34499
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* flow.c (mark_used_regs): Don't call find_auto_inc after reload
has run.
From-SVN: r34492
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* flow.c (merge_blocks_nomove): Remove a barrier not following
a jump as well.
From-SVN: r34315
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* flow.c (propagate_block): Move initialization of mem_set_list ...
(init_propagate_block_info): ... here. Also track blocks with
no successors; don't scan insns if ! PROP_SCAN_DEAD_CODE.
From-SVN: r34310
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dead if not used.
* flow.c (propagate_block): If block has no successors, stores to
frame are dead if not used.
From-SVN: r34296
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conditional death information.
* flow.c (mark_used_reg): If a register is unconditionally live,
remove any conditional death information.
From-SVN: r34259
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* flow.c (find_label_refs): New function.
(find_basic_blocks_1): Call it for each alternative of a call
placeholder.
From-SVN: r34193
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* bb-reorder.c (reorder_block_def): Reorder elements for size.
Remove add_jump; add next; replace flags with visited.
(rbd_init): Remove.
(REORDER_BLOCK_HEAD, REORDER_BLOCK_VISITED): Remove.
(REORDER_BLOCK_FLAGS, REORDER_BLOCK_INDEX): Remove.
(REORDER_BLOCK_ADD_JUMP, REORDER_BLOCK_EFF_HEAD): Remove.
(REORDER_BLOCK_EFF_END, REORDER_BLOCK_SCOPE): Remove.
(RBI): New.
(reorder_index, reorder_last_visited): Remove.
(skip_insns_after_block): Rewrite to use a switch.
(get_common_dest): Remove.
(chain_reorder_blocks): Remove.
(record_effective_endpoints): Split out from reorder_basic_blocks.
(make_reorder_chain): Likewise. Loop until all blocks are placed.
(make_reorder_chain_1): Renamed from old make_reorder_chain.
Only construct the reorder chain, do not move insns. Try harder
to tail recurse.
(label_for_bb, emit_jump_to_block_after): New.
(fixup_reorder_chain): Use them. Do bulk block movement. Examine
and adjust the jump insns appropriately. Fixup basic_block_info.
(verify_insn_chain): Always define.
(relate_bbs_with_scopes): Call xmalloc, not xcalloc. Fix thinko
in allocation size.
(make_new_scope): Don't write zeros to calloc'd space.
(build_scope_forest): Rely on xrealloc to DTRT.
(reorder_basic_blocks): Don't build loop nest. Don't fail if
profile_arc_flag. Streamline EH test.
* flow.c (redirect_edge_succ, redirect_edge_pred): New.
* basic-block.h: Declare them.
From-SVN: r34186
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From-SVN: r34176
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