PR c/23075
* c-typeck.c (c_finish_return): Set TREE_NO_WARNING on RETURN_EXPR
if "return with no value, in function returning non-void" warning
has been issued.
* tree-cfg.c (execute_warn_function_return): Don't look at
RETURN_EXPRs with TREE_NO_WARNING set.
* typeck.c (check_return_expr): Add no_warning argument. Set
*no_warning to true if "return-statement with no value, in function
returning" warning has been issued.
* cp-tree.h (check_return_expr): Adjust prototype.
* semantics.c (finish_return_stmt): Set TREE_NO_WARNING if
check_return_expr set *no_warning to true.
* gcc.dg/pr23075.c: New test.
* g++.dg/warn/pr23075.C: New test.
From-SVN: r103967
* bb-reorder.c (copy_bb, duplicate_computed_gotos): Add argument
to duplicate_block.
* cfghooks.c (duplicate_block): Added position where to place
new block as argument.
* cfghooks.h (duplicate_block): Declaration changed.
* cfglayout.c (copy_bbs): Add argument after. Pass it to
duplicate_block.
* cfglayout.h (copy_bbs): Declaration changed.
* cfgloop.h (loop_version): Declaration changed.
* cfgloopmanip.c (duplicate_loop_to_header_edge): Pass
position to copy_bbs.
(loop_version): Pass position to duplicate_loop_to_header_edge.
Add place_after argument and position new blocks according to
it.
* modulo-sched.c (sms_schedule): Pass place_after argument
to loop_version.
* tracer.c (tail_duplicate): Pass argument to duplicate_block.
* tree-cfg.c (split_edge_bb_loc): New function.
(tree_split_edge, tree_duplicate_sese_region): Use split_edge_bb_loc
to determine position of new blocks.
* tree-ssa-loop-unswitch.c (tree_unswitch_loop): Pass argument
to loop_version.
* tree-ssa-threadupdate.c (create_block_for_threading): Pass
argument to duplicate_block.
* tree-vectorizer.c (slpeel_tree_duplicate_loop_to_edge_cfg):
Pass position to copy_bbs.
From-SVN: r103437
* profile.c (branch_prob): Split edges with goto locus on them
to get proper line counts.
* tree-cfg.c (make_cond_expr_edges): Record user goto locuses, if any.
* gcov-1.C: Fix switch counts.
* gcov-4b.c: Likewise.
From-SVN: r102717
* cfg.c (update_bb_profile_for_threading): Use RDIV.
(scale_bbs_frequencies_int): Likewise, assert for possible overflow.
(scale_bbs_frequencies_gcov_type): Be more curefull about overflows and
roundoff errors.
* tree-cfg.c (tree_duplicate_sese_region): Use counts for updating
profile when available.
* update-loopch.c: New testcase.
From-SVN: r102466
* Makefile.in (tree-ssa-alias.o): Depend on tree-ssa-structalias.h
* tree-cfg.c (CHECK_OP): Only test for is_gimple_val.
* tree-dfa.c (dump_subvars_for): New.
(debug_subvars_for): New.
(dump_variable): Show subvariables if VAR has them.
* tree-flow-inline.h (get_subvar_at): New.
(overlap_subvar): Change offset and size to unsigned HOST_WIDE_INT.
* tree-flow.h (struct ptr_info_def): Remove field pt_malloc.
Update all users.
(struct subvar): Change fields offset and size to unsigned
HOST_WIDE_INT.
(dump_subvars_for): Declare.
(debug_subvars_for): Declare.
(get_subvar_at): Declare.
(okay_component_ref_for_subvars): Change 2nd and 3rd argument
to unsigned HOST_WIDE_INT *.
(overlap_subvar): Likewise.
* tree-gimple.c (is_gimple_reg): Always return false for
SFTs and memory tags.
* tree-pass.h (pass_build_pta, pass_del_pta): Remove.
Update all callers.
* tree-ssa-alias.c: Include tree-ssa-structalias.h.
(compute_may_aliases): Call compute_points_to_sets.
(collect_points_to_info_for): Remove.
(compute_points_to_and_addr_escape): Remove.
(delete_alias_info): Call delete_points_to_sets.
(compute_flow_sensitive_aliasing): If the call to
find_what_p_points_to returns false, call set_pt_anything.
(add_may_alias): Set TREE_ADDRESSABLE when adding a new alias.
(set_pt_anything): Clear pi->pt_vars.
(set_pt_malloc): Remove.
(merge_pointed_to_info): Remove.
(add_pointed_to_expr): Remove.
(add_pointed_to_var): Remove.
(collect_points_to_info_r): Remove.
(is_escape_site): Make extern.
(create_sft): New.
(create_overlap_variables_for): Call it.
* tree-ssa-copy.c (merge_alias_info): Never merge
flow-sensitive alias information.
* tree-ssa-operands.c (get_expr_operands): Adjust variables
offset and size to be unsigned HOST_WIDE_INT.
(add_to_addressable_set): Rename from note_addressable.
Set TREE_ADDRESSABLE as the variables are added to the set.
Update all users.
(add_stmt_operand): Do not try to micro-optimize unmodifiable
operands into VUSEs when adding V_MAY_DEFs for members in an
alias set.
* tree-ssa-operands.h (add_to_addressable_set): Declare.
* tree-ssa-structalias.c: Include tree-ssa-structalias.h last.
(struct variable_info): Add bitfield is_heap_var.
(var_anyoffset, anyoffset_tree, anyoffset_id): Declare.
(new_var_info): Initialize is_heap_var.
(get_constraint_for): Add HEAP variables to the symbol table.
Mark them with is_heap_var.
(update_alias_info): New. Taken mostly from the old
compute_points_to_and_addr_escape.
(handle_ptr_arith): New.
(find_func_aliases): Call update_alias_info.
Call handle_ptr_info for tcc_binary expressions.
Call mark_stmt_modified.
(create_variable_info_for): If DECL has subvars, do not create
variables for its subvars. Always add all the fields.
(set_uids_in_ptset): If the solution includes ANYOFFSET and
SFTs, then add all the SFTs of the structure.
If VI->DECL is an aggregate with subvariables, add the SFT at
VI->OFFSET.
(find_what_p_points_to): If VI is an artificial variable,
translate to bitfields in SSA_NAME_PTR_INFO.
If the solution is empty, set pi->pt_vars to NULL
(init_base_vars): Create ANYOFFSET.
(compute_points_to_sets): Rename from create_alias_vars.
Make extern.
(pass_build_pta): Remove.
(delete_points_to_sets): Rename from delete_alias_vars.
(pass_del_pta): Remove.
* tree-ssa-structalias.h (struct alias_info): Move from
tree-ssa-alias.h.
(NUM_REFERENCES, NUM_REFERENCES_CLEAR, NUM_REFERENCES_INC,
NUM_REFERENCES_SET): Likewise.
(compute_points_to_sets, delete_points_to_sets): Declare.
testsuite/ChangeLog
* gcc.dg/tree-ssa/pta-fp.c: Use -fdump-tree-alias1.
From-SVN: r101841
PR tree-optimization/21846
* tree-cfg.c (replace_uses_by): Update information stored at loops.
* tree-flow.h (substitute_in_loop_info): Declare.
* tree-scalar-evolution.c (initialize_scalar_evolutions_analyzer):
Ensure that chrec_dont_know and chrec_known have a type.
* tree-ssa-loop-niter.c (substitute_in_loop_info): New function.
From-SVN: r100631
* tree-cfg.c (verify_expr, case ADDR_EXPR): Verify invariant,
constant and side_effects of the ADDR_EXPR are consistent.
* tree-nested.c (convert_local_reference): Set CURRENT_FUNCTION_DECL
appropriately around calls to recompute_tree_invarant_for_addr_expr.
Co-Authored-By: Jeff Law <law@redhat.com>
From-SVN: r100168
* tree-cfg.c (tree_can_merge_blocks_p): Allow phi nodes in the
merged block.
(replace_uses_by): New function.
(tree_merge_blocks): Eliminate the phi nodes in the merged block.
* tree-flow.h (fold_stmt_inplace): Declare.
* tree-ssa-ccp.c (fold_stmt_inplace): New function.
* tree-ssa-dom.c (tree_ssa_dominator_optimize): Update dominance
info after cfg cleanup.
From-SVN: r99850
* 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
* 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
2005-04-22 Diego Novillo <dnovillo@redhat.com>
* Makefile.in (tree-into-ssa.o): Add dependency on PARAMS_H.
* lambda-code.c (perfect_nestify): Mark virtual operands in
the moved statement for renaming.
* params.def (PARAM_MIN_VIRTUAL_MAPPINGS): Define.
(PARAM_VIRTUAL_MAPPINGS_TO_SYMS_RATIO): Define.
* params.h (MIN_VIRTUAL_MAPPINGS): Define.
(VIRTUAL_MAPPINGS_TO_SYMS_RATIO): Define.
* tree-flow.h (struct var_ann_d): Update comments.
(rewrite_to_new_ssa_names_bb, rewrite_to_new_ssa_names,
allocate_ssa_names, find_phi_node_for, dump_tree_ssa,
debug_tree_ssa, debug_def_blocks, dump_tree_ssa_stats,
debug_tree_ssa_stats, rewrite_ssa_into_ssa,
dump_repl_tbl, debug_repl_tbl, dump_names_replaced_by,
debug_names_replaced_by): Remove declarations.
(delete_update_ssa, get_current_def, set_current_def): Declare.
(rewrite_into_loop_closed_ssa): Add new argument. Update
all callers.
* tree-into-ssa.c: Include params.h.
(old_virtual_ssa_names): Remove. Update all users.
(need_to_replace_names_p): Remove. Update all users.
(struct update_ssa_stats_d): Declare.
(update_ssa_stats): New local.
(dump_tree_ssa, debug_tree_ssa, debug_def_blocks,
dump_tree_ssa_stats, debug_tree_ssa_stats,
dump_update_ssa, debug_update_ssa,
dump_names_replaced_by, debug_names_replaced_by): Declare.
(get_current_def, set current_def): Make extern.
(is_old_name, is_new_name): Protect against references
past the end of the sets.
(add_new_name_mapping): Assert that OLD and NEW are
different SSA names for the same symbol.
When adding a virtual mapping, update stats for virtual
mapping heuristic.
(insert_phi_nodes_for): If UPDATE_P is true, create the
LHS of the new PHI by duplicating SSA name VAR.
(insert_phi_nodes_1): Remove. Update all users.
(insert_phi_nodes): Remove second argument. Update all
users.
(maybe_replace_use, maybe_replace_def): New.
(rewrite_update_stmt): Call them.
(mark_def_interesting): Remove calls to is_gimple_reg.
(prepare_phi_args_for_update): Remove. Update all users.
(prepare_block_for_update): Only process virtual operands
and GIMPLE registers in normal form.
(prepare_use_sites_for): New.
(prepare_names_to_update): Rename from prepare_def_sites.
Call prepare_use_sites_for.
(dump_update_ssa): Rename from dump_repl_tbl.
Update all users.
Show statistics for virtual mapping heuristic.
(debug_update_ssa): Rename from debug_debug_repl_tbl.
(init_update_ssa): Initialize UPDATE_SSA_STATS.
(delete_update_ssa): Make extern.
(mark_set_for_renaming): If the set is empty, do nothing.
(release_ssa_name_after_update_ssa): Update comment.
(insert_updated_phi_nodes_for): Do not remove existing
PHI nodes for symbols.
(switch_virtuals_to_full_rewrite_p): New.
(switch_virtuals_to_full_rewrite): New.
(update_ssa): Call them.
Clear REWRITE_THIS_STMT and REGISTER_DEFS_IN_THIS_STMT
for every statement before updating.
If all the names in NEW_SSA_NAMES have been marked for
removal, do nothing.
Only start at the top of the CFG if there are symbols in
SYMS_TO_RENAME.
(ssa_rewrite_finalize_block): Remove.
(ssa_register_new_def): Remove.
(ssa_rewrite_stmt): Remove.
(ssa_rewrite_phi_arguments): Remove.
(ssa_rewrite_initialize_block): Remove.
(ssa_mark_def_sites): Remove.
(ssa_mark_def_sites_initialize_block): Remove.
(ssa_mark_phi_uses): Remove.
(rewrite_ssa_into_ssa): Remove.
* tree-phinodes.c (find_phi_node_for): Remove.
* tree-ssa-loop-ivcanon.c (try_unroll_loop_completely):
Call update_ssa.
* tree-ssa-loop-unswitch.c (tree_ssa_unswitch_loops):
Remove calls to verify_dominators and
verify_loop_structure.
(tree_unswitch_single_loop): Call update_ssa.
* tree-ssa.c (verify_ssa): Assert that need_ssa_update_p
returns false.
Call verify_stmts.
(delete_tree_ssa): Assert that need_ssa_update_p returns
false.
* tree-vect-transform.c (vect_transform_loop): Call update_ssa.
* tree-vectorizer.c (allocate_new_names, rename_def_op,
free_new_names): Remove. Update all users.
(rename_use_op): Call get_current_def.
(rename_variables_in_bb): Do not handle any real or
virtual definition.
(slpeel_update_phis_for_duplicate_loop): Call
get_current_def and set_current_def instead of using
SSA_NAME_AUX.
(slpeel_update_phi_nodes_for_guard2): Reformat comments.
(slpeel_can_duplicate_loop_p): Call need_ssa_update_p,
ssa_names_to_replace and delete_update_ssa.
* doc/invoke.texi: Document --param min-virtual-mappings
and --param virtual-mappings-ratio.
2005-04-22 Zdenek Dvorak <dvorakz@suse.cz>
Diego Novillo <dnovillo@redhat.com>
* tree-cfg.c (tree_duplicate_bb): Call create_new_def_for
for newly created PHI nodes.
Call create_new_def_for for every new V_MAY_DEF and
V_MUST_DEF on the copied statement.
(struct ssa_name_map_entry): Remove.
(ssa_name_map_entry_hash): Remove.
(ssa_name_map_entry_eq): Remove.
(allocate_ssa_names): Remove.
(rewrite_to_new_ssa_names_def): Remove.
(rewrite_to_new_ssa_names_use): Remove.
(rewrite_to_new_ssa_names_bb): Remove.
(rewrite_to_new_ssa_names): Remove.
(tree_duplicate_sese_region): Remove variables ver,
definitions, phi, ssa_name_map and bi.
Call need_ssa_update_p instead of any_marked_for_rewrite_p.
Call update_ssa.
* tree-ssa-dom.c (tree_ssa_dominator_optimize): Call
update_ssa instead of rewrite_ssa_into_ssa.
* tree-ssa-loop-manip.c (add_exit_phis_edge): Call
create_new_def_for.
(find_uses_to_rename_use): Add argument 'need_phis'.
(find_uses_to_rename_stmt): Do not scan virtual operands.
(find_uses_to_rename): Only scan PHI nodes for
non-virtual names.
(rewrite_into_loop_closed_ssa): Call update_ssa.
(check_loop_closed_ssa_use): Ignore virtual operands.
(check_loop_closed_ssa_stmt): Likewise.
(verify_loop_closed_ssa): Do nothing if CURRENT_LOOPS is
NULL.
(rename_variables, set_phi_def_stmts): Remove.
(tree_duplicate_loop_to_header_edge): Reformat comment.
Remove variables BB, I and DEFINITIONS.
Call need_ssa_update_p.
Call update_ssa.
(lv_adjust_loop_header_phi): Reformat comment.
* tree-ssanames.c (ssa_names_to_rewrite): Remove.
(marked_for_rewrite_p, any_marked_for_rewrite_p,
mark_for_rewrite, unmark_all_for_rewrite,
marked_ssa_names): Remove. Update all users.
(release_ssa_name): If VAR has been registered for SSA
updating, do nothing.
* tree-vrp.c (new_ssa_names, old_ssa_names): Remove.
(build_assert_expr_for): Call register_new_name_mapping.
(insert_range_assertions): Update call to update_ssa.
* tree.h (mark_for_rewrite, unmark_all_for_rewrite,
marked_for_rewrite_p, any_marked_for_rewrite_p,
marked_ssa_names): Remove.
From-SVN: r98599
* Makefile.in (LIBGCOV): Add _gcov_interval_profiler,
_gcov_pow2_profiler and _gcov_one_value_profiler.
(tree-profile.o): Add GGC_H and gt-tree-profile.h dependency.
(GTFILES): Add $(srcdir)/tree-profile.c.
* gcov-io.h (__gcov_interval_profiler, __gcov_pow2_profiler,
__gcov_one_value_profiler): Declare.
* gimplify.c (force_gimple_operand): Check whether the statements
should be produced in ssa form.
(force_gimple_operand_bsi): New function.
* libgcov.c (__gcov_interval_profiler, __gcov_pow2_profiler,
__gcov_one_value_profiler): New functions.
* rtl-profile.c (rtl_gen_pow2_profiler): Only measure whether
the profiled value is a power of two or not.
* tree-cfg.c (tree_block_ends_with_condjump_p): Handle empty blocks.
* tree-flow.h (in_ssa_p): Declare.
(force_gimple_operand_bsi): Declare.
* tree-into-ssa.c (in_ssa_p): New variable.
(rewrite_into_ssa): Set in_ssa_p.
* tree-outof-ssa.c (rewrite_out_of_ssa): Set in_ssa_p.
* tree-profile.c: Include ggc.h and gt-tree-profile.h.
(gcov_type_node, tree_interval_profiler_fn, tree_pow2_profiler_fn,
tree_one_value_profiler_fn): New variables.
(tree_init_edge_profiler): Initialize the profiler function decls.
(tree_gen_edge_profiler): Use global gcov_type_node.
(prepare_instrumented_value): New function.
(tree_gen_interval_profiler, tree_gen_interval_profiler,
tree_gen_one_value_profiler): Call the library functions instead of
creating instrumentation code.
* tree.c (build_fn_decl): New function.
* tree.h (build_fn_decl): Declare.
* value-prof.c (rtl_divmod_values_to_profile,
rtl_find_values_to_profile, rtl_mod_pow2_value_transform,
tree_mod_pow2_value_transform, tree_find_values_to_profile):
Do not handle may_be_other and precise values of exponents at pow2
profiler.
(tree_mod_subtract_transform): Reflect that value field of
histogram has changed meaning.
(tree_divmod_values_to_profile): Record the values correctly.
(tree_values_to_profile): Update comment.
* value-prof.h (struct histogram_value_t): Remove pow2 data.
From-SVN: r98555
