* function.h (struct function): Add saved blocks/unexpanded var list.
* gimple-low.c (record_vars): Insert only VAR_DECLs.
* tree-inline.c (add_lexical_block): Declare; do not clear sublocks.
(remap_decl): Do not declare vars.
(remap_block): Do not care inserting blocks.
(remap_blocks): New function.
(copy_body_r): Update debug info.
(expand_call_inline): Duplicate callee block tree into caller;
copy all the unexpanded_var_list.
(save_body): Save unexpanded_var_list and blocks.
* tree-optimize.c (tree_rest_of_optimization): Restore
blocks/unexpanded_var_list.
From-SVN: r101449
* cgraph.h (cgraph_node): Add 'lowered' state.
(cgraph_lower_function): Declare.
* cgraphunit.c (cgraph_finalize_function): Initialize lowered flag.
(cgraph_lower_function): New function.
(cgraph_create_edges): Deal with lowered function bodies.
(verify_cgraph_node): Likewise.
(cgraph_analyze_function): Do lowering job.
(cgraph_build_static_cdtor): Likewise.
* function.h (struct function): Add saved_eh and saved_cfg.
* integrate.c (copy_decl_for_inlining): Kill LABEL_DECL_UID field.
* tree-cfg.c (fold_cond_expr_cond): Export.
* tree-flow.h (fold_cond_expr_cond): Declare.
* tree-inline.c: Include basic-block, ggc, tree-flow, except.h and
pointer-set.
(struct_inline_data): Kill fnd, first_inlined_fn, ret_label,
in_target_cleanup_p, tree_pruner, tsi; add callee, caller and
callee_cfun, block, eh_region, eh_region_offset.
(inlining_p): New predicate.
(remap_decl): Update for new inline_data; declare newly created inline
vars in low gimple way.
(copy_body_r): Update for new datastructure, simplify some of handling
when we are in gimple; remap LABEL_DECLs for EH; copy TREE_BLOCK;
deal with RESX_EXPRs.
(copy_bb): New.
(copy_edges_for_bb): Likewise.
(remap_decl_1): New.
(copy_cfg_body): New.
(copy_generic_body): Rewrite to work on low gimple.
(copy_body): Turn into simple wrapper around copy_cfg_body.
(setup_one_parameter): Insert new statements into given basic block.
(initialize_initialized_parameters): Likewise, reorganize way things are
gimplified.
(declare_return_variable): Update for new inline data datastructure.
(inline_forbidden_p): Work on low gimple.
(estimate_num_insns): Likewise.
(expand_call_inline): Work on CFG.
(push_cfun, pop_cfun): New functions.
(cfun_stack): New stack.
(add_lexical_block): New function.
(gimple_expand_calls_inline): Work on basic block.
(optimize_inline_calls): Likewise.
(clone_body, save_body, unsave_ewpr_now): Update for new
datastructures.
(declare_inline_vars): Work on block instead of bind_expr.
(inlining_p): New predicate.
* tree-inline.h (push_cfun, pop_cfun): Declare.
* tree-optimize.c: Include except.h
(all_lowering_passes): New variable.
(execute_fixup_cfg, pass_fixup_cfg): New pass.
(init_tree_optimization_passes): Move some to all_lowering_passes.
(tree_lowering_passes): New function.
(tree_rest_of_compilation): Register cfg hooks; save/unsave eh.
Co-Authored-By: Dale Johannesen <dalej@apple.com>
Co-Authored-By: Jan Hubicka <jh@suse.cz>
Co-Authored-By: Stuart Hastings <stuart@apple.com>
From-SVN: r99840
2005-05-16 Caroline Tice <ctice@apple.com>
* bb-reorder.c (verify_hot_cold_block_grouping): Replace
internal_error with gcc_assert.
* dwarf2out.c (dwarf2out_switch_text_section): Likewise.
* function.h (struct function): Remove space between "*" and
struct field names.
* varasm.c (initialize_cold_section_name): Add gcc_assert;
modify to use alloca.
(unlikely_text_section): Add check for flag_function_sections.
(assemble_start_function): Move call to resolve_section, so it
comes before first call to unlikely_text_section.
(assemble_end_function): Add test and call to function_section
if appropriate.
From-SVN: r99796
* except.c (duplicate_eh_region_1, duplicate_eh_region_2,
duplicate_eh_regions): New functions, based on old
implementation removed with RTL inliner.
(reachable_next_level): Modify behaviour pre-inline.
* except.h (duplicate_eh_regions_map, duplicate_eh_regions):
Declare.
* function.h (struct function): Add after_inlining flag.
* tree-optimize.c (tree_rest_of_compilation): Set it.
* tree-eh.c (add_stmt_to_eh_region_fn): Initialize hashtable
when needed.
* tree-cfg.c (label_to_block_fn): Deal with cases where
label was never insterted into code.
Co-Authored-By: Jan Hubicka <jh@suse.cz>
Co-Authored-By: Stuart Hastings <stuart@apple.com>
From-SVN: r99625
2005-04-27 Caroline Tice <ctice@apple.com>
* bb-reorder.c (find_rarely_executed_basic_blocks_and_crossing_edges):
Remove targetm.have_named_sections test.
(fix_edges_for_rarely_executed_code): Likewise.
(insert_section_boundary_note): Likewise.
(reorder_basic_blocks): Check partitioning flag before calling
verify_hot_cold_block_grouping.
* dbxout.c (dbxout_function_end): Get hot/cold section labels from
the function struct rather than global variables.
* dwarf2out.c (COLD_TEXT_SECTION_LABEL): New macro.
(COLD_END_LABEL): Likewise
(cold_text_section_label): New static global variable.
(cold_end_label): Likewise.
(dwarf2out_switch_text_section): Get hot/cold section labels from
the function struct rather than global variables; test to make sure
cfun is defined.
(output_aranges): Use cold_text_section_label and cold_end_label;
check partitioning flag before putting out delta.
(output_ranges): Remove incorrect code attempting to use
hot/cold labels.
(output_line_info): Get cold section label from function struct; test
to make sure cfun is defined.
(add_location_or_const_value_attribute): Likewise.
(dwarf2out_var_location): Likewise.
(dwarf2out_init): Generate cold_text_section_label and cold_end_label;
write out cold_text_section_label if partition flag is set.
(dwarf2out_finish): Write out cold_end_label if partition flag is set;
* function.h (struct function): Add new fields to point to hot/cold
section labels: hot_section_label, cold_section_label,
hot_section_end_label and cold_section_end_label; also add new field
for cold text section name, unlikely_text_section_name.
* opts.c (decode_options): Turn off partitioning flag if
!targetm.have_named_sections.
* output.h (hot_section_label): Remove.
(hot_section_end_label): Remove.
(cold_section_end_label): Remove.
(unlikely_section_label): Remove.
(unlikely_text_section_name): Remove.
* passes.c (rest_of_handle_final): Remove extra blank line.
* varasm.c (unlikely_section_label): Remove.
(hot_section_label): Remove.
(hot_section_end_label): Remove.
(cold_section_end_label): Remove.
(unlikely_text_section_name): Remove.
(initialize_cold_section_name): Modify to call
targetm.strip_name_encoding; to store cold section name in current
function struct, if it exists; and to only use the decl_section_name
if flag_named_sections is true.
(unlikely_text_section): Modify to get section name out of current
function struct, if there is one; otherwise build it from
UNLIKELY_EXECUTED_TEXT_SECTION_NAME.
(in_unlikely_text_section): Likewise.
(named_section): Modify to get/put cold section name in current function
struct, if there is one.
(function_section): Change 'bool unlikely' to 'int reloc'; check
targetm.have_named_sections before calling named_section.
(current_function_section): Likewise.
(assemble_start_function): Modify to get/put unlikely_text_section_name
in current function struct; modify to get hot/cold section labels
from function struct; initialize labels using
ASM_GENERATE_INTERNAL_LABEL;
test partitioning flag before writing out hot section label.
(assemble_end_function): Test partitioning flag before writing out
hot/cold section labels.
(default_section_type_flags_1): Get cold text section name from
function struct if there is one; Set flags correctly for
cold text section if there is not a current function struct.
From-SVN: r98885
* Makefile.in: Add function.h to BASIC_BLOCK_H. Remove all
references to gt-tree-cfg.h.
* basic-block.h (struct basic_block_def): Don't skip rbi
for garbage collection.
(struct reorder_block_def): Make GTY-able.
(struct control_flow_graph): New structure.
(n_edges, n_basic_blocks, last_basic_block, basic_block_info,
BASIC_BLOCK, EXIT_BLOCK_PTR, ENTRY_BLOCK_PTR): No longer vars,
but instead defines to the control_flow_graph for cfun.
(label_to_block_map): New define, points to the label map of
the control_flow_graph for cfun.
(n_edges_for_function, n_basic_blocks_for_function,
last_basic_block_for_function, basic_block_info_for_function,
EXIT_BLOCK_PTR_FOR_FUNCTION, ENTRY_BLOCK_PTR_FOR_FUNCTION,
basic_block_info_for_function, label_to_block_map_for_function):
Counterparts for the above, taking a struct function as an extra
argument.
(alloc_rbi_pool, free_rbi_pool): Remove prototypes.
* cfg.c: (n_edges, n_basic_blocks, last_basic_block,
basic_block_info, ENTRY_BLOCK_PTR, EXIT_BLOCK_PTR): Remove.
(alloc_rbi_pool, free_rbi_pool): Remove.
(initialize_bb_rbi): Use ggc_alloc_cleared instead of pool_alloc.
* cfglayout.c: (cfg_layout_initialize): Don't allocate the rbi pool
here...
(cfg_layout_finalize) ... and don't free it here.
* cfgrtl.c (cfg_layout_delete_block): Zero out rbi so it gets
garbage collected.
* flow.c (free_basic_block_vars): Set label_to_block_map and
n_edges to zero too.
* function.h (struct function): Add cfg field.
* function.c (allocate_struct_function): Allocate the cfg.
* tree-cfg.c (label_to_block_map): Remove.
(build_tree_cfg): Don't allocate the rbi pool here...
(delete_tree_cfg_annotations): ...and don't free it here.
Also don't nullify label_to_block_map for cfun.
Co-Authored-By: Jan Hubicka <jh@suse.cz>
Co-Authored-By: Stuart Hastings <stuart@apple.com>
From-SVN: r98048
* tree.h (enum tree_index): Add TI_VA_LIST_GPR_COUNTER_FIELD
and TI_VA_LIST_FPR_COUNTER_FIELD.
(va_list_gpr_counter_field, va_list_fpr_counter_field): Define.
* tree-pass.h (pass_stdarg): Add.
* tree-optimize.c (init_tree_optimization_passes): Add pass_stdarg.
* tree-stdarg.c: New file.
* tree-stdarg.h: New file.
* Makefile.in (OBJS-common): Add tree-stdarg.o.
(tree-stdarg.o): Add dependencies.
* function.h (struct function): Add va_list_gpr_size and
va_list_fpr_size fields.
* function.c (allocate_struct_function): Initialize them.
* target.h (struct gcc_target): Add stdarg_optimize_hook.
* target-def.h (TARGET_STDARG_OPTIMIZE_HOOK): Define.
(TARGET_INITIALIZER): Add it.
* config/i386/i386.c (ix86_build_builtin_va_list): Initialize
va_list_{g,f}pr_counter_field.
(ix86_setup_incoming_varargs): Don't do anything if reg_save
area will not be used. Only save registers that tree-stdarg.c
detected they need saving.
(ix86_va_start): Don't set up fields that won't be used.
* config/rs6000/rs6000.c (rs6000_build_builtin_va_list): Initialize
va_list_{g,f}pr_counter_field.
(setup_incoming_varargs): Don't do anything if reg_save
area will not be used. Only save registers that tree-stdarg.c
detected they need saving.
(rs6000_va_start): Don't set up fields that won't be used.
* config/alpha/alpha.c: Include tree-flow.h and tree-stdarg.h.
(alpha_build_builtin_va_list): Initialize va_list_gpr_counter_field.
(va_list_skip_additions, alpha_stdarg_optimize_hook): New functions.
(TARGET_STDARG_OPTIMIZE_HOOK): Define.
* gcc.dg/tree-ssa/stdarg-1.c: New test.
* gcc.dg/tree-ssa/stdarg-2.c: New test.
* gcc.dg/tree-ssa/stdarg-3.c: New test.
* gcc.dg/tree-ssa/stdarg-4.c: New test.
* gcc.dg/tree-ssa/stdarg-5.c: New test.
* gcc.c-torture/execute/stdarg-4.c: New test.
* gcc.dg/vmx/varargs-1.c (f1, f2, f3): Add missing va_end.
From-SVN: r97916
PR middle-end/19698
* function.h (struct function): New field `max_loop_depth'.
* cfgloop.c (establish_preds): Update maximum loop depth seen so far.
(flow_loops_find): Reset the max loop depth count before finding loops.
* flow.c (MAX_LIVENESS_ROUNDS): New constant.
(update_life_info_in_dirty_blocks): Remove 2002-05-28 workaround.
(calculate_global_regs_live): Make sure the loop will terminate
when the initial sets are not empty.
From-SVN: r95299
PR middle-end/16585
* cfgbuild.c (make_edges): Do not clear or set
current_function_has_computed_jump.
* function.h (struct function): Remove the has_computed_jump field.
(current_function_has_computed_jump): Do not define.
* sched-rgn.c (is_cfg_nonregular): Return true if a basic block ends
in a computed jump. Ignore current_function_has_computed_jump.
From-SVN: r94269
2004-10-01 Jakub Jelinek <jakub@redhat.com>
Revert
2004-09-29 Jakub Jelinek <jakub@redhat.com>
* tree.h (enum tree_index): Add TI_VA_LIST_GPR_COUNTER_FIELD
and TI_VA_LIST_FPR_COUNTER_FIELD.
(va_list_gpr_counter_field, va_list_fpr_counter_field): Define.
* tree-pass.h (pass_stdarg): Add.
* tree-optimize.c (init_tree_optimization_passes): Add pass_stdarg.
* tree-stdarg.c: New file.
* Makefile.in (OBJS-common): Add tree-stdarg.o.
(tree-stdarg.o): Add dependencies.
* function.h (struct function): Add va_list_gpr_size and
va_list_fpr_size fields.
* function.c (allocate_struct_function): Initialize them.
* config/i386/i386.c (ix86_build_builtin_va_list): Initialize
va_list_{g,f}pr_counter_field.
(ix86_setup_incoming_varargs): Don't do anything if reg_save
area will not be used. Only save registers that tree-stdarg.c
detected they need saving.
(ix86_va_start): Don't set up fields that won't be used.
* config/rs6000/rs6000.c (rs6000_build_builtin_va_list): Initialize
va_list_{g,f}pr_counter_field.
(setup_incoming_varargs): Don't do anything if reg_save
area will not be used. Only save registers that tree-stdarg.c
detected they need saving.
(rs6000_va_start): Don't set up fields that won't be used.
* gcc.dg/tree-ssa/stdarg-1.c: Removed.
* gcc.dg/tree-ssa/stdarg-2.c: Removed.
* gcc.dg/tree-ssa/stdarg-3.c: Removed.
* gcc.dg/tree-ssa/stdarg-4.c: Removed.
* gcc.dg/tree-ssa/stdarg-5.c: Removed.
From-SVN: r88383
* tree.h (enum tree_index): Add TI_VA_LIST_GPR_COUNTER_FIELD
and TI_VA_LIST_FPR_COUNTER_FIELD.
(va_list_gpr_counter_field, va_list_fpr_counter_field): Define.
* tree-pass.h (pass_stdarg): Add.
* tree-optimize.c (init_tree_optimization_passes): Add pass_stdarg.
* tree-stdarg.c: New file.
* Makefile.in (OBJS-common): Add tree-stdarg.o.
(tree-stdarg.o): Add dependencies.
* function.h (struct function): Add va_list_gpr_size and
va_list_fpr_size fields.
* function.c (allocate_struct_function): Initialize them.
* config/i386/i386.c (ix86_build_builtin_va_list): Initialize
va_list_{g,f}pr_counter_field.
(ix86_setup_incoming_varargs): Don't do anything if reg_save
area will not be used. Only save registers that tree-stdarg.c
detected they need saving.
(ix86_va_start): Don't set up fields that won't be used.
* config/rs6000/rs6000.c (rs6000_build_builtin_va_list): Initialize
va_list_{g,f}pr_counter_field.
(setup_incoming_varargs): Don't do anything if reg_save
area will not be used. Only save registers that tree-stdarg.c
detected they need saving.
(rs6000_va_start): Don't set up fields that won't be used.
* gcc.c-torture/execute/stdarg-1.c: New test.
* gcc.c-torture/execute/stdarg-2.c: New test.
* gcc.c-torture/execute/stdarg-3.c: New test.
* gcc.dg/tree-ssa/stdarg-1.c: New test.
* gcc.dg/tree-ssa/stdarg-2.c: New test.
* gcc.dg/tree-ssa/stdarg-3.c: New test.
* gcc.dg/tree-ssa/stdarg-4.c: New test.
* gcc.dg/tree-ssa/stdarg-5.c: New test.
From-SVN: r88279
2004-08-09 Paolo Bonzini <bonzini@gnu.org>
* Makefile.in (GTFILES): Remove stmt.c
(stmt.o): Do not depend on gt-stmt.h.
* emit-rtl.c (emit_line_note): Do not call
set_file_and_line_for_stmt.
* expr.c (expand_expr_real_1) <SWITCH_EXPR>: Let expand_case
do everything.
* function.c (free_after_parsing): Do not free STMT field.
(allocate_struct_function): Do not call init_stmt_for_function.
(assign_stack_temp_for_type): Do not accept values of keep
other than 0 or 1.
(init_temp_slots): Do not initialize removed variables.
* function.h (struct function): Remove STMT, X_TARGET_TEMP_SLOT_LEVEL
and X_VAR_TEMP_SLOT_LEVEL fields.
* rtl.h (set_file_and_line_for_stmt): Remove.
* stmt.c (struct nesting, ALLOC_NESTING, POPSTACK,
struct stmt_status, cond_stack, case_stack, nesting_stack,
nesting_depth, emit_locus, set_file_and_line_for_stmt,
same_case_target_p, init_stmt_for_function, emit_nop,
expand_start_cond, expand_start_elseif, expand_start_else,
expand_elseif, expand_end_cond): Remove.
(preserve_subexpressions_p): Remove references to CFUN->STMT.
(expand_start_case, expand_end_case_type): Remove, merge into...
(expand_case): ... this one, including other bits from
expand_expr_real_1. Inline same_case_target_p. Turn members
of CASE_STACK into local variables.
(emit_case_bit_tests): Inline same_case_target_p.
(add_case_node): Add HEAD argument, return new head of the list,
do not handle default label here.
* tree.h (expand_start_cond, expand_end_cond, expand_start_else,
expand_start_elseif, current_nesting_level, expand_start_case,
expand_end_case_type, expand_end_case, add_case_node,
init_stmt_for_function, expand_elseif): Remove prototypes.
(expand_case): Add prototype.
From-SVN: r85712
* function.c (free_after_compilation): Do not free computed_goto_common*.
* function.h (struct function): Kill computed_goto_common*.
* stmt.c (expand_computed_goto): Do not commonize the computed gotos.
* tree-cfg.c (disband_implicit_edges): Do not forward across the
commonized computed goto.
From-SVN: r83393
2004-06-18 Paolo Bonzini <bonzini@gnu.org>
* emit-rtl.c (unshare_all_rtl_1): New name of unshare_all_rtl.
(unshare_all_rtl_again): Call unshare_all_rtl_1.
(unshare_all_rtl): New.
* function.c (instantiate_virtual_regs): Remove parameters.
* function.h (instantiate_virtual_regs): Add prototype.
* rtl.h (unshare_all_rtl): Add prototype.
* tree.h (instantiate_virtual_regs, unshare_all_rtl): Remove
prototype.
* passes.c: Remove assertions on the parameters to
rest_of_handle_* functions. Remove the parameters to
the functions, replacing decl with current_function_decl
and insns with get_insns ().
From-SVN: r83341
gcc/ChangeLog:
2004-06-15 Paolo Bonzini <bonzini@gnu.org>
* function.h (struct function): Remove cannot_inline field.
(current_function_cannot_inline): Remove.
* passes.c (rest_of_compilation): Reset DECL_DEFER_OUTPUT.
Simplify conditionals to ignore warn_return_type.
* tree-optimize.c (tree_rest_of_compilation): Do not reset
DECL_DEFER_OUTPUT.
* objc/objc-act.c (build_module_descriptor, finish_method_def):
Do not set current_function_cannot_inline.
gcc/java/ChangeLog:
2004-06-15 Paolo Bonzini <bonzini@gnu.org>
* class.c (emit_register_classes): Make the function uninlinable,
do not set current_function_cannot_inline.
* resource.c (write_resource_constructor): Do not reset
flag_inline_functions around rest_of_compilation.
gcc/cp/ChangeLog:
2004-06-15 Paolo Bonzini <bonzini@gnu.org>
* cp-tree.h (struct language_function): Remove cannot_inline.
* decl.c (save_function_data): cannot_inline is no more.
(cxx_push_function_context): Likewise.
* decl2.c (start_objects, start_static_storage_duration_function):
Reset DECL_INLINE, set DECL_UNINLINABLE.
From-SVN: r83181
PR c++/15463
* loop-iv.c (iv_number_of_iterations): Use trunc_int_for_mode on
result of inverse.
PR rtl-optimization/15274
* loop-iv.c (determine_max_iter, shorten_into_mode,
iv_number_of_iterations): Handle constants correctly.
* rtl.h (get_mode_bounds): Declaration changed.
* stor-layout.c (get_mode_bounds): Return a constant suitable for
the target mode.
PR rtl-optimization/14692
* loop-unswitch.c (may_unswitch_on): Try folding the result.
(unswitch_single_loop): Work correctly when may_unswitch_on
returns a folded constant.
* loop-iv.c (implies_p): Handle A < B ==> A + 1 <= B.
* simplify-rtx.c (simplify_const_relational_operation): Optimize
comparisons with mode bounds.
* function.c (struct temp_slot): Add new field prev.
(free_after_compilation, init_temp_slots): Free new fields.
(cut_slot_from_list, insert_slot_to_list,
temp_slots_at_level, max_slot_level, move_slot_to_level,
make_slot_available): New functions.
(assign_stack_temp_for_type, combine_temp_slots,
find_temp_slot_from_address, preserve_temp_slots,
preserve_rtl_expr_result, free_temp_slots,
free_temps_for_rtl_expr, pop_temp_slots): Work with
the new structure of lists.
(mark_all_temps_used): Removed.
* function.h (struct function): Field x_temp_slots
replaced by x_used_temp_slots and x_avail_temp_slots.
(temp_slots): Replaced by ...
(used_temp_slots, avail_temp_slots): New.
* tree.h (mark_all_temps_used): Declaration removed.
* loop-iv.c (mark_single_set, get_biv_step_1, iv_analyze,
simplify_using_assignment): Take the expression out of
the expr_list wrapper.
* loop-iv.c (iv_number_of_iterations): Improve clasification of
infinite loops.
From-SVN: r82028
* gcc.dg/unused-6.c: New test.
PR c/15004
* function.c (do_warn_unused_parameter): Break out form ...
(expand_function_end): ... here; warn only when not using cgraphunit.
* function.h (do_warn_unused_parameter): Declare.
* cgraphunit.c: Include function.h.
(cgraph_finalize_function): Do unused parameter warning.
* Makefile.in (cgraphunit.o): Depend on function.h
From-SVN: r81260
* gengtype.c (create_option): New function.
* gengtype.h: Prototype it.
* gengtype-yacc.y (stringseq): New rule.
(option): Use create_option. Add new bare ID production. Use
stringseq, not STRING directly.
* alias.c, bitmap.c, c-decl.c, cgraph.h, cpplib.h, cselib.h
* dwarf2out.c, emit-rtl.c, function.h, lists.c, tree.h
* varray.h, config/alpha/alpha.c, cp/name-lookup.c, cp/parser.c
* f/com.c, java/builtins.c, java/expr.c, java/jcf.h, java/parse.h:
Use new shorter form of GTY markers.
* doc/gty.texi: Rewrite.
From-SVN: r80091
* calls.c (initialize_argument_information): Add CALL_FROM_THUNK_P
parameter. Use it instead of current_function_is_thunk.
* function.h (struct function): Update documentation for is_thunk.
* tree.h (CALL_FROM_THUNK_P): New macro.
* config/alpha/alpha.c (alpha_sa_mask): Do not check
no_new_pseudos when testing current_function_is_thunk.
* config/rs6000/rs6000.c (rs6000_ra_ever_killed): Likeiwse.
* decl.c (cxx_push_function_context): Do not set
current_function_is_thunk.
* method.c (use_thunk): Set CALL_FROM_THUNK on the call to the
actual function.
From-SVN: r77244
PR c++/13376
* function.h (struct function): Kill `name' field.
(current_function_name): Make it an extern function.
* function.c (current_function_name): New function.
* graph.c: Update all uses of current_function_name.
* gcse.c: Likewise.
* config/alpha/alpha.c, config/avr/avr.c, config/c4x/c4x.c,
config/mips/mips.c, config/pdp11/pdp11.c: Likewise.
* config/ip2k/ip2k.c (function_prologue): Use MAIN_NAME_P
instead of a strcmp with "main".
From-SVN: r75784
