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2017-09-04re PR sanitizer/81981 (-fsanitize=undefined makes a -Wmaybe-uninitialized ↵Jakub Jelinek1-8/+33
warning disappear) PR sanitizer/81981 * gimple-fold.c (gimple_fold_call): Optimize away useless UBSAN_PTR and UBSAN_BOUNDS internal calls. Clean up IFN_UBSAN_OBJECT_SIZE handling. Use replace_call_with_value with NULL instead of gsi_replace, unlink_stmt_vdef and release_defs. * gcc.dg/ubsan/pr81981.c: New test. From-SVN: r251641
2017-08-30[34/77] Add a SCALAR_INT_TYPE_MODE macroRichard Sandiford1-1/+1
This patch adds a SCALAR_INT_TYPE_MODE macro that asserts that the type has a scalar integer mode and returns it as a scalar_int_mode. 2017-08-30 Richard Sandiford <richard.sandiford@linaro.org> Alan Hayward <alan.hayward@arm.com> David Sherwood <david.sherwood@arm.com> gcc/ * tree.h (SCALAR_INT_TYPE_MODE): New macro. * builtins.c (expand_builtin_signbit): Use it. * cfgexpand.c (expand_debug_expr): Likewise. * dojump.c (do_jump): Likewise. (do_compare_and_jump): Likewise. * dwarf2cfi.c (expand_builtin_init_dwarf_reg_sizes): Likewise. * expmed.c (make_tree): Likewise. * expr.c (expand_expr_real_2): Likewise. (expand_expr_real_1): Likewise. (try_casesi): Likewise. * fold-const-call.c (fold_const_call_ss): Likewise. * fold-const.c (unextend): Likewise. (extract_muldiv_1): Likewise. (fold_single_bit_test): Likewise. (native_encode_int): Likewise. (native_encode_string): Likewise. (native_interpret_int): Likewise. * gimple-fold.c (gimple_fold_builtin_memset): Likewise. * internal-fn.c (expand_addsub_overflow): Likewise. (expand_neg_overflow): Likewise. (expand_mul_overflow): Likewise. (expand_arith_overflow): Likewise. * match.pd: Likewise. * stor-layout.c (layout_type): Likewise. * tree-cfg.c (verify_gimple_assign_ternary): Likewise. * tree-ssa-math-opts.c (convert_mult_to_widen): Likewise. * tree-ssanames.c (get_range_info): Likewise. * tree-switch-conversion.c (array_value_type) Likewise. * tree-vect-patterns.c (vect_recog_rotate_pattern): Likewise. (vect_recog_divmod_pattern): Likewise. (vect_recog_mixed_size_cond_pattern): Likewise. * tree-vrp.c (extract_range_basic): Likewise. (simplify_float_conversion_using_ranges): Likewise. * tree.c (int_fits_type_p): Likewise. * ubsan.c (instrument_bool_enum_load): Likewise. * varasm.c (mergeable_string_section): Likewise. (narrowing_initializer_constant_valid_p): Likewise. (output_constant): Likewise. gcc/cp/ * cvt.c (cp_convert_to_pointer): Use SCALAR_INT_TYPE_MODE. gcc/fortran/ * target-memory.c (size_integer): Use SCALAR_INT_TYPE_MODE. (size_logical): Likewise. gcc/objc/ * objc-encoding.c (encode_type): Use SCALAR_INT_TYPE_MODE. Co-Authored-By: Alan Hayward <alan.hayward@arm.com> Co-Authored-By: David Sherwood <david.sherwood@arm.com> From-SVN: r251486
2017-08-30[24/77] Replace a != BLKmode check with is_a <scalar_int_mode>Richard Sandiford1-13/+11
This patch replaces a check against BLKmode with a check of is_a <scalar_int_mode>, in a case where scalar integer modes were the only useful alternatives left. gcc/ 2017-08-30 Richard Sandiford <richard.sandiford@linaro.org> Alan Hayward <alan.hayward@arm.com> David Sherwood <david.sherwood@arm.com> * gimple-fold.c (gimple_fold_builtin_memory_op): Use is_a <scalar_int_mode> instead of != BLKmode. From-SVN: r251476
2017-08-24PR middle-end/81908 - FAIL: gfortran.dg/alloc_comp_auto_array_2.f90 -O3 -g -m32Martin Sebor1-2/+33
gcc/ChangeLog: PR middle-end/81908 * gimple-fold.c (size_must_be_zero_p): New function. (gimple_fold_builtin_memory_op): Call it. gcc/testsuite/ChangeLog: PR middle-end/81908 * gcc.dg/tree-ssa/builtins-folding-gimple-2.c: New test. * gcc.dg/tree-ssa/builtins-folding-gimple-3.c: New test. * gcc.dg/tree-ssa/pr81908.c: New test. From-SVN: r251347
2017-08-08trans.c: Include header files.Martin Liska1-0/+2
. 2017-08-08 Martin Liska <mliska@suse.cz> * gcc-interface/trans.c: Include header files. 2017-08-08 Martin Liska <mliska@suse.cz> * objc-gnu-runtime-abi-01.c: Include header files. * objc-next-runtime-abi-01.c: Likewise. * objc-next-runtime-abi-02.c: Likewise. 2017-08-08 Martin Liska <mliska@suse.cz> * asan.c: Include header files. * attribs.c (build_decl_attribute_variant): New function moved from tree.[ch]. (build_type_attribute_qual_variant): Likewise. (cmp_attrib_identifiers): Likewise. (simple_cst_list_equal): Likewise. (omp_declare_simd_clauses_equal): Likewise. (attribute_value_equal): Likewise. (comp_type_attributes): Likewise. (build_type_attribute_variant): Likewise. (lookup_ident_attribute): Likewise. (remove_attribute): Likewise. (merge_attributes): Likewise. (merge_type_attributes): Likewise. (merge_decl_attributes): Likewise. (merge_dllimport_decl_attributes): Likewise. (handle_dll_attribute): Likewise. (attribute_list_equal): Likewise. (attribute_list_contained): Likewise. * attribs.h (lookup_attribute): New function moved from tree.[ch]. (lookup_attribute_by_prefix): Likewise. * bb-reorder.c: Include header files. * builtins.c: Likewise. * calls.c: Likewise. * cfgexpand.c: Likewise. * cgraph.c: Likewise. * cgraphunit.c: Likewise. * convert.c: Likewise. * dwarf2out.c: Likewise. * final.c: Likewise. * fold-const.c: Likewise. * function.c: Likewise. * gimple-expr.c: Likewise. * gimple-fold.c: Likewise. * gimple-pretty-print.c: Likewise. * gimple.c: Likewise. * gimplify.c: Likewise. * hsa-common.c: Likewise. * hsa-gen.c: Likewise. * internal-fn.c: Likewise. * ipa-chkp.c: Likewise. * ipa-cp.c: Likewise. * ipa-devirt.c: Likewise. * ipa-fnsummary.c: Likewise. * ipa-inline.c: Likewise. * ipa-visibility.c: Likewise. * ipa.c: Likewise. * lto-cgraph.c: Likewise. * omp-expand.c: Likewise. * omp-general.c: Likewise. * omp-low.c: Likewise. * omp-offload.c: Likewise. * omp-simd-clone.c: Likewise. * opts-global.c: Likewise. * passes.c: Likewise. * predict.c: Likewise. * sancov.c: Likewise. * sanopt.c: Likewise. * symtab.c: Likewise. * toplev.c: Likewise. * trans-mem.c: Likewise. * tree-chkp.c: Likewise. * tree-eh.c: Likewise. * tree-into-ssa.c: Likewise. * tree-object-size.c: Likewise. * tree-parloops.c: Likewise. * tree-profile.c: Likewise. * tree-ssa-ccp.c: Likewise. * tree-ssa-live.c: Likewise. * tree-ssa-loop.c: Likewise. * tree-ssa-sccvn.c: Likewise. * tree-ssa-structalias.c: Likewise. * tree-ssa.c: Likewise. * tree-streamer-in.c: Likewise. * tree-vectorizer.c: Likewise. * tree-vrp.c: Likewise. * tsan.c: Likewise. * ubsan.c: Likewise. * varasm.c: Likewise. * varpool.c: Likewise. * tree.c: Remove functions moved to attribs.[ch]. * tree.h: Likewise. * config/aarch64/aarch64.c: Add attrs.h header file. * config/alpha/alpha.c: Likewise. * config/arc/arc.c: Likewise. * config/arm/arm.c: Likewise. * config/avr/avr.c: Likewise. * config/bfin/bfin.c: Likewise. * config/c6x/c6x.c: Likewise. * config/cr16/cr16.c: Likewise. * config/cris/cris.c: Likewise. * config/darwin.c: Likewise. * config/epiphany/epiphany.c: Likewise. * config/fr30/fr30.c: Likewise. * config/frv/frv.c: Likewise. * config/ft32/ft32.c: Likewise. * config/h8300/h8300.c: Likewise. * config/i386/winnt.c: Likewise. * config/ia64/ia64.c: Likewise. * config/iq2000/iq2000.c: Likewise. * config/lm32/lm32.c: Likewise. * config/m32c/m32c.c: Likewise. * config/m32r/m32r.c: Likewise. * config/m68k/m68k.c: Likewise. * config/mcore/mcore.c: Likewise. * config/microblaze/microblaze.c: Likewise. * config/mips/mips.c: Likewise. * config/mmix/mmix.c: Likewise. * config/mn10300/mn10300.c: Likewise. * config/moxie/moxie.c: Likewise. * config/msp430/msp430.c: Likewise. * config/nds32/nds32-isr.c: Likewise. * config/nds32/nds32.c: Likewise. * config/nios2/nios2.c: Likewise. * config/nvptx/nvptx.c: Likewise. * config/pa/pa.c: Likewise. * config/pdp11/pdp11.c: Likewise. * config/powerpcspe/powerpcspe.c: Likewise. * config/riscv/riscv.c: Likewise. * config/rl78/rl78.c: Likewise. * config/rx/rx.c: Likewise. * config/s390/s390.c: Likewise. * config/sh/sh.c: Likewise. * config/sol2.c: Likewise. * config/sparc/sparc.c: Likewise. * config/spu/spu.c: Likewise. * config/stormy16/stormy16.c: Likewise. * config/tilegx/tilegx.c: Likewise. * config/tilepro/tilepro.c: Likewise. * config/v850/v850.c: Likewise. * config/vax/vax.c: Likewise. * config/visium/visium.c: Likewise. * config/xtensa/xtensa.c: Likewise. 2017-08-08 Martin Liska <mliska@suse.cz> * call.c: Include header files. * cp-gimplify.c: Likewise. * cp-ubsan.c: Likewise. * cvt.c: Likewise. * init.c: Likewise. * search.c: Likewise. * semantics.c: Likewise. * typeck.c: Likewise. 2017-08-08 Martin Liska <mliska@suse.cz> * lto-lang.c: Include header files. * lto-symtab.c: Likewise. 2017-08-08 Martin Liska <mliska@suse.cz> * c-convert.c: Include header files. * c-typeck.c: Likewise. 2017-08-08 Martin Liska <mliska@suse.cz> * c-ada-spec.c: Include header files. * c-ubsan.c: Likewise. * c-warn.c: Likewise. 2017-08-08 Martin Liska <mliska@suse.cz> * trans-types.c: Include header files. From-SVN: r250946
2017-07-28re PR middle-end/81502 (In some cases the data is moved to memory ↵Richard Biener1-1/+1
unnecessarily [partial regression]) 2017-07-28 Richard Biener <rguenther@suse.de> PR tree-optimization/81502 * match.pd: Add pattern combining BIT_INSERT_EXPR with BIT_FIELD_REF. * tree-cfg.c (verify_expr): Verify types of BIT_FIELD_REF size/pos operands. (verify_gimple_assign_ternary): Likewise for BIT_INSERT_EXPR pos. * gimple-fold.c (maybe_canonicalize_mem_ref_addr): Use bitsizetype for BIT_FIELD_REF args. * fold-const.c (make_bit_field_ref): Likewise. * tree-vect-stmts.c (vectorizable_simd_clone_call): Likewise. * gcc.target/i386/pr81502.c: New testcase. From-SVN: r250659
2017-07-06ASAN: Implement dynamic allocas/VLAs sanitization.Maxim Ostapenko1-1/+1
gcc/ * asan.c: Include gimple-fold.h. (get_last_alloca_addr): New function. (handle_builtin_stackrestore): Likewise. (handle_builtin_alloca): Likewise. (asan_emit_allocas_unpoison): Likewise. (get_mem_refs_of_builtin_call): Add new parameter, remove const quallifier from first paramerer. Handle BUILT_IN_ALLOCA, BUILT_IN_ALLOCA_WITH_ALIGN and BUILT_IN_STACK_RESTORE builtins. (instrument_builtin_call): Pass gimple iterator to get_mem_refs_of_builtin_call. (last_alloca_addr): New global. * asan.h (asan_emit_allocas_unpoison): Declare. * builtins.c (expand_asan_emit_allocas_unpoison): New function. (expand_builtin): Handle BUILT_IN_ASAN_ALLOCAS_UNPOISON. * cfgexpand.c (expand_used_vars): Call asan_emit_allocas_unpoison if function calls alloca. * gimple-fold.c (replace_call_with_value): Remove static keyword. * gimple-fold.h (replace_call_with_value): Declare. * internal-fn.c: Include asan.h. * sanitizer.def (BUILT_IN_ASAN_ALLOCA_POISON, BUILT_IN_ASAN_ALLOCAS_UNPOISON): New builtins. gcc/testsuite/ * c-c++-common/asan/alloca_big_alignment.c: New test. * c-c++-common/asan/alloca_detect_custom_size.c: Likewise. * c-c++-common/asan/alloca_instruments_all_paddings.c: Likewise. * c-c++-common/asan/alloca_loop_unpoisoning.c: Likewise. * c-c++-common/asan/alloca_overflow_partial.c: Likewise. * c-c++-common/asan/alloca_overflow_right.c: Likewise. * c-c++-common/asan/alloca_safe_access.c: Likewise. * c-c++-common/asan/alloca_underflow_left.c: Likewise. From-SVN: r250031
2017-06-27re PR middle-end/81207 (tree check fail in simplify_builtin_call)Jakub Jelinek1-1/+2
PR middle-end/81207 * gimple-fold.c (replace_call_with_call_and_fold): Handle gimple_vuse copying separately from gimple_vdef copying. * gcc.c-torture/compile/pr81207.c: New test. From-SVN: r249677
2017-06-16PR tree-optimization/80934 - bzero should be assumed not to escape pointer ↵Martin Sebor1-5/+83
argument PR tree-optimization/80934 - bzero should be assumed not to escape pointer argument PR tree-optimization/80933 - redundant bzero/bcopy calls not eliminated gcc/ChangeLog: PR tree-optimization/80933 PR tree-optimization/80934 * builtins.c (fold_builtin_3): Do not handle bcmp here. * gimple-fold.c (gimple_fold_builtin_bcmp): New function. (gimple_fold_builtin_bcopy, gimple_fold_builtin_bzero): Likewise. (gimple_fold_builtin): Call them. gcc/testsuite/ChangeLog: PR tree-optimization/80933 PR tree-optimization/80934 * gcc.dg/fold-bcopy.c: New test. * gcc.dg/tree-ssa/ssa-dse-30.c: Likewise.. * gcc.dg/tree-ssa/alias-36.c: Likewise. * gcc/testsuite/gcc.dg/pr79214.c: Adjust. * gcc.dg/tree-prof/val-prof-7.c: Likewise. * gcc.dg/Wsizeof-pointer-memaccess1.c: Likewise. * gcc.dg/builtins-nonnull.c: Likewise. From-SVN: r249278
2017-06-13Implement no_sanitize function attributeMartin Liska1-1/+2
2017-06-13 Martin Liska <mliska@suse.cz> PR sanitize/78204 * c-c++-common/ubsan/attrib-2.c (float_cast2): Enhance the test by adding no_sanitize attribute. * gcc.dg/asan/use-after-scope-4.c: Likewise. 2017-06-13 Martin Liska <mliska@suse.cz> PR sanitize/78204 * c-attribs.c (add_no_sanitize_value): New function. (handle_no_sanitize_attribute): Likewise. (handle_no_sanitize_address_attribute): Use the function. (handle_no_sanitize_thread_attribute): New function. (handle_no_address_safety_analysis_attribute): Use add_no_sanitize_value. (handle_no_sanitize_undefined_attribute): Likewise. * c-common.h: Declare new functions. * c-ubsan.c (ubsan_instrument_division): Use sanitize_flags_p. (ubsan_instrument_shift): Likewise. (ubsan_instrument_bounds): Likewise. (ubsan_maybe_instrument_array_ref): Likewise. (ubsan_maybe_instrument_reference_or_call): Likewise. 2017-06-13 Martin Liska <mliska@suse.cz> PR sanitize/78204 * asan.c (asan_sanitize_stack_p): Use sanitize_flags_p. (gate_asan): Likewise. * asan.h (asan_no_sanitize_address_p): Remove the function. (sanitize_flags_p): New function. * builtins.def: Fix coding style. * common.opt: Use renamed enum value. * convert.c (convert_to_integer_1): Use sanitize_flags_p. * doc/extend.texi: Document no_sanitize attribute. * flag-types.h (enum sanitize_code): Rename SANITIZE_NONDEFAULT to SANITIZE_UNDEFINED_NONDEFAULT. * gcc.c (sanitize_spec_function): Use the renamed enum value. * gimple-fold.c (optimize_atomic_compare_exchange_p): Use sanitize_flags_p. * gimplify.c (gimplify_function_tree): Likewise. * ipa-inline.c (sanitize_attrs_match_for_inline_p): Likewise. * opts.c (parse_no_sanitize_attribute): New function. (common_handle_option): Use renamed enum value. * opts.h (parse_no_sanitize_attribute): Declare. * tree.c (sanitize_flags_p): New function. * tree.h: Declared here. * tsan.c: Use sanitize_flags_p. * ubsan.c (ubsan_expand_null_ifn): Likewise. (instrument_mem_ref): Likewise. (instrument_bool_enum_load): Likewise. (do_ubsan_in_current_function): Remove the function. (pass_ubsan::execute): Use sanitize_flags_p. * ubsan.h: Remove do_ubsan_in_current_function * tree-cfg.c (print_no_sanitize_attr_value): New function. (dump_function_to_file): Use it here. 2017-06-13 Martin Liska <mliska@suse.cz> PR sanitize/78204 * class.c (build_base_path): Use sanitize_flags_p. * cp-gimplify.c (cp_genericize_r): Likewise. (cp_genericize_tree): Likewise. (cp_genericize): Likewise. * cp-ubsan.c (cp_ubsan_instrument_vptr_p): Likewise. * decl.c (compute_array_index_type): Likewise. (start_preparsed_function): Likewise. * decl2.c (one_static_initialization_or_destruction): Likewise. * init.c (finish_length_check): Likewise. * lambda.c (maybe_add_lambda_conv_op): Likewise. * typeck.c (cp_build_binary_op): Likewise. (build_static_cast_1): Likewise. 2017-06-13 Martin Liska <mliska@suse.cz> PR sanitize/78204 * c-convert.c (convert): Use sanitize_flags_p. * c-decl.c (grokdeclarator): Likewise. * c-typeck.c (convert_for_assignment): Likewise. (c_finish_return): Likewise. (build_binary_op): Likewise. From-SVN: r249158
2017-05-16Add default value for last argument of dump functions.Martin Liska1-1/+1
2017-05-16 Martin Liska <mliska@suse.cz> * parser.c (cp_lexer_print_token): Add default value for flags argument of print_gimple_stmt, print_gimple_expr, print_generic_stmt and print_generic_expr. 2017-05-16 Martin Liska <mliska@suse.cz> * cgraph.c (cgraph_edge::resolve_speculation): Add default value for flags argument of print_gimple_stmt, print_gimple_expr, print_generic_stmt and print_generic_expr. * cgraphclones.c (symbol_table::materialize_all_clones): Likewise. * coretypes.h: Likewise. * except.c (dump_eh_tree): Likewise. * gimple-fold.c (gimple_fold_stmt_to_constant_1): Likewise. * gimple-pretty-print.h: Likewise. * gimple-ssa-backprop.c (dump_usage_prefix): Likewise. (backprop::push_to_worklist): Likewise. (backprop::pop_from_worklist): Likewise. (backprop::process_use): Likewise. (backprop::intersect_uses): Likewise. (note_replacement): Likewise. * gimple-ssa-store-merging.c (pass_store_merging::terminate_all_aliasing_chains): Likewise. (imm_store_chain_info::coalesce_immediate_stores): Likewise. (pass_store_merging::execute): Likewise. * gimple-ssa-strength-reduction.c (dump_candidate): Likewise. (ssa_base_cand_dump_callback): Likewise. (dump_incr_vec): Likewise. (replace_refs): Likewise. (replace_mult_candidate): Likewise. (create_add_on_incoming_edge): Likewise. (create_phi_basis): Likewise. (insert_initializers): Likewise. (all_phi_incrs_profitable): Likewise. (introduce_cast_before_cand): Likewise. (replace_one_candidate): Likewise. * gimplify.c (gimplify_expr): Likewise. * graphite-isl-ast-to-gimple.c (is_valid_rename): Likewise. (set_rename): Likewise. (rename_uses): Likewise. (copy_loop_phi_nodes): Likewise. (add_close_phis_to_merge_points): Likewise. (copy_loop_close_phi_args): Likewise. (copy_cond_phi_args): Likewise. (graphite_copy_stmts_from_block): Likewise. (translate_pending_phi_nodes): Likewise. * graphite-poly.c (print_pdr): Likewise. (dump_gbb_cases): Likewise. (dump_gbb_conditions): Likewise. (print_scop_params): Likewise. * graphite-scop-detection.c (build_cross_bb_scalars_def): Likewise. (build_cross_bb_scalars_use): Likewise. (gather_bbs::before_dom_children): Likewise. * hsa-dump.c (dump_hsa_immed): Likewise. * ipa-cp.c (print_ipcp_constant_value): Likewise. (get_replacement_map): Likewise. * ipa-inline-analysis.c (dump_condition): Likewise. (estimate_function_body_sizes): Likewise. * ipa-polymorphic-call.c (check_stmt_for_type_change): Likewise. (ipa_polymorphic_call_context::get_dynamic_type): Likewise. * ipa-prop.c (ipa_dump_param): Likewise. (ipa_print_node_jump_functions_for_edge): Likewise. (ipa_modify_call_arguments): Likewise. (ipa_modify_expr): Likewise. (ipa_dump_param_adjustments): Likewise. (ipa_dump_agg_replacement_values): Likewise. (ipcp_modif_dom_walker::before_dom_children): Likewise. * ipa-pure-const.c (check_stmt): Likewise. (pass_nothrow::execute): Likewise. * ipa-split.c (execute_split_functions): Likewise. * omp-offload.c (dump_oacc_loop_part): Likewise. (dump_oacc_loop): Likewise. * trans-mem.c (tm_log_emit): Likewise. (tm_memopt_accumulate_memops): Likewise. (dump_tm_memopt_set): Likewise. (dump_tm_memopt_transform): Likewise. * tree-cfg.c (gimple_verify_flow_info): Likewise. (print_loop): Likewise. * tree-chkp-opt.c (chkp_print_addr): Likewise. (chkp_gather_checks_info): Likewise. (chkp_get_check_result): Likewise. (chkp_remove_check_if_pass): Likewise. (chkp_use_outer_bounds_if_possible): Likewise. (chkp_reduce_bounds_lifetime): Likewise. * tree-chkp.c (chkp_register_addr_bounds): Likewise. (chkp_mark_completed_bounds): Likewise. (chkp_register_incomplete_bounds): Likewise. (chkp_mark_invalid_bounds): Likewise. (chkp_maybe_copy_and_register_bounds): Likewise. (chkp_build_returned_bound): Likewise. (chkp_get_bound_for_parm): Likewise. (chkp_build_bndldx): Likewise. (chkp_get_bounds_by_definition): Likewise. (chkp_generate_extern_var_bounds): Likewise. (chkp_get_bounds_for_decl_addr): Likewise. * tree-chrec.c (chrec_apply): Likewise. * tree-data-ref.c (dump_data_reference): Likewise. (dump_subscript): Likewise. (dump_data_dependence_relation): Likewise. (analyze_overlapping_iterations): Likewise. * tree-inline.c (expand_call_inline): Likewise. (tree_function_versioning): Likewise. * tree-into-ssa.c (dump_defs_stack): Likewise. (dump_currdefs): Likewise. (dump_names_replaced_by): Likewise. (dump_update_ssa): Likewise. (update_ssa): Likewise. * tree-object-size.c (pass_object_sizes::execute): Likewise. * tree-parloops.c (build_new_reduction): Likewise. (try_create_reduction_list): Likewise. (ref_conflicts_with_region): Likewise. (oacc_entry_exit_ok_1): Likewise. (oacc_entry_exit_single_gang): Likewise. * tree-pretty-print.h: Likewise. * tree-scalar-evolution.c (set_scalar_evolution): Likewise. (get_scalar_evolution): Likewise. (add_to_evolution): Likewise. (get_loop_exit_condition): Likewise. (analyze_evolution_in_loop): Likewise. (analyze_initial_condition): Likewise. (analyze_scalar_evolution): Likewise. (instantiate_scev): Likewise. (number_of_latch_executions): Likewise. (gather_chrec_stats): Likewise. (final_value_replacement_loop): Likewise. (scev_const_prop): Likewise. * tree-sra.c (dump_access): Likewise. (disqualify_candidate): Likewise. (create_access): Likewise. (reject): Likewise. (maybe_add_sra_candidate): Likewise. (create_access_replacement): Likewise. (analyze_access_subtree): Likewise. (analyze_all_variable_accesses): Likewise. (sra_modify_assign): Likewise. (initialize_constant_pool_replacements): Likewise. (find_param_candidates): Likewise. (decide_one_param_reduction): Likewise. (replace_removed_params_ssa_names): Likewise. * tree-ssa-ccp.c (ccp_fold_stmt): Likewise. * tree-ssa-copy.c (dump_copy_of): Likewise. (copy_prop_visit_cond_stmt): Likewise. * tree-ssa-dce.c (mark_operand_necessary): Likewise. * tree-ssa-dom.c (pass_dominator::execute): Likewise. (record_equivalences_from_stmt): Likewise. * tree-ssa-dse.c (compute_trims): Likewise. (delete_dead_call): Likewise. (delete_dead_assignment): Likewise. * tree-ssa-forwprop.c (forward_propagate_into_gimple_cond): Likewise. (forward_propagate_into_cond): Likewise. (pass_forwprop::execute): Likewise. * tree-ssa-ifcombine.c (ifcombine_ifandif): Likewise. * tree-ssa-loop-im.c (invariantness_dom_walker::before_dom_children): Likewise. (move_computations_worker): Likewise. (execute_sm): Likewise. * tree-ssa-loop-ivcanon.c (tree_estimate_loop_size): Likewise. (remove_exits_and_undefined_stmts): Likewise. (remove_redundant_iv_tests): Likewise. * tree-ssa-loop-ivopts.c (dump_use): Likewise. (adjust_iv_update_pos): Likewise. * tree-ssa-math-opts.c (bswap_replace): Likewise. * tree-ssa-phiopt.c (factor_out_conditional_conversion): Likewise. (value_replacement): Likewise. * tree-ssa-phiprop.c (phiprop_insert_phi): Likewise. * tree-ssa-pre.c (print_pre_expr): Likewise. (get_representative_for): Likewise. (create_expression_by_pieces): Likewise. (insert_into_preds_of_block): Likewise. (eliminate_insert): Likewise. (eliminate_dom_walker::before_dom_children): Likewise. (eliminate): Likewise. (remove_dead_inserted_code): Likewise. * tree-ssa-propagate.c (substitute_and_fold): Likewise. * tree-ssa-reassoc.c (get_rank): Likewise. (eliminate_duplicate_pair): Likewise. (eliminate_plus_minus_pair): Likewise. (eliminate_not_pairs): Likewise. (undistribute_ops_list): Likewise. (eliminate_redundant_comparison): Likewise. (update_range_test): Likewise. (optimize_range_tests_var_bound): Likewise. (optimize_vec_cond_expr): Likewise. (rewrite_expr_tree): Likewise. (rewrite_expr_tree_parallel): Likewise. (linearize_expr): Likewise. (break_up_subtract): Likewise. (linearize_expr_tree): Likewise. (attempt_builtin_powi): Likewise. (attempt_builtin_copysign): Likewise. (transform_stmt_to_copy): Likewise. (transform_stmt_to_multiply): Likewise. (dump_ops_vector): Likewise. * tree-ssa-sccvn.c (vn_nary_build_or_lookup_1): Likewise. (print_scc): Likewise. (set_ssa_val_to): Likewise. (visit_reference_op_store): Likewise. (visit_use): Likewise. (sccvn_dom_walker::before_dom_children): Likewise. (run_scc_vn): Likewise. * tree-ssa-scopedtables.c (avail_exprs_stack::lookup_avail_expr): Likewise. (expr_hash_elt::print): Likewise. (const_and_copies::pop_to_marker): Likewise. (const_and_copies::record_const_or_copy_raw): Likewise. * tree-ssa-structalias.c (compute_dependence_clique): Likewise. * tree-ssa-uninit.c (collect_phi_def_edges): Likewise. (dump_predicates): Likewise. (find_uninit_use): Likewise. (warn_uninitialized_phi): Likewise. (pass_late_warn_uninitialized::execute): Likewise. * tree-ssa.c (verify_vssa): Likewise. (verify_ssa): Likewise. (maybe_optimize_var): Likewise. * tree-vrp.c (dump_value_range): Likewise. (dump_all_value_ranges): Likewise. (dump_asserts_for): Likewise. (register_edge_assert_for_2): Likewise. (vrp_visit_cond_stmt): Likewise. (vrp_visit_switch_stmt): Likewise. (vrp_visit_stmt): Likewise. (vrp_visit_phi_node): Likewise. (simplify_cond_using_ranges_1): Likewise. (fold_predicate_in): Likewise. (evrp_dom_walker::before_dom_children): Likewise. (evrp_dom_walker::push_value_range): Likewise. (evrp_dom_walker::pop_value_range): Likewise. (execute_early_vrp): Likewise. From-SVN: r248113
2017-05-14PR middle-end/77671 - missing -Wformat-overflow warning on sprintf overflow ↵Martin Sebor1-12/+5
with %s gcc/ChangeLog: PR middle-end/77671 * gimple-fold.c (gimple_fold_builtin_sprintf): Make extern. (gimple_fold_builtin_snprintf): Same. * gimple-fold.h (gimple_fold_builtin_sprintf): Declare. (gimple_fold_builtin_snprintf): Same. * gimple-ssa-sprintf.c (get_format_string): Correct the detection of character types. (is_call_safe): New function. (try_substitute_return_value): Call it. (try_simplify_call): New function. (pass_sprintf_length::handle_gimple_call): Call it. gcc/testsuite/ChangeLog: PR middle-end/77671 * gcc.dg/tree-ssa/builtin-sprintf-7.c: New test. * gcc.dg/tree-ssa/builtin-sprintf-8.c: New test. * gcc.dg/tree-ssa/builtin-sprintf-warn-1.c: Adjust. * gcc.dg/tree-ssa/builtin-sprintf-warn-2.c: Adjust. * gcc.dg/tree-ssa/builtin-sprintf-warn-3.c: Adjust. From-SVN: r248035
2017-05-12gimple-fold.c (create_tmp_reg_or_ssa_name): Remove static declaration.Will Schmidt1-2/+2
2017-05-12 Will Schmidt <will_schmidt@vnet.ibm.com> [gcc] * gimple-fold.c (create_tmp_reg_or_ssa_name): Remove static declaration. * gimple-fold.h (create_tmp_reg_or_ssa_name): New prototype. From-SVN: r247975
2017-05-04tree.c (array_at_struct_end_p): Handle arrays at struct end with flexarrays ↵Richard Biener1-1/+1
more conservatively. 2017-05-04 Richard Biener <rguenther@suse.de> * tree.c (array_at_struct_end_p): Handle arrays at struct end with flexarrays more conservatively. Refactor and treat arrays of arrays or aggregates more strict. Fix VIEW_CONVERT_EXPR handling. Remove allow_compref argument. * tree.c (array_at_struct_end_p): Adjust prototype. * emit-rtl.c (set_mem_attributes_minus_bitpos): Adjust. * gimple-fold.c (get_range_strlen): Likewise. * tree-chkp.c (chkp_may_narrow_to_field): Likewise. From-SVN: r247581
2017-04-29re PR tree-optimization/79697 (unused realloc(0, n) not eliminated)Prathamesh Kulkarni1-0/+25
2017-04-29 Prathamesh Kulkarni <prathamesh.kulkarni@linaro.org> PR tree-optimization/79697 * tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Check if callee is BUILT_IN_STRDUP, BUILT_IN_STRNDUP, BUILT_IN_REALLOC. (propagate_necessity): Check if def_callee is BUILT_IN_STRDUP or BUILT_IN_STRNDUP. * gimple-fold.c (gimple_fold_builtin_realloc): New function. (gimple_fold_builtin): Call gimple_fold_builtin_realloc. testsuite/ * gcc.dg/tree-ssa/pr79697.c: New test. From-SVN: r247407
2017-03-28re PR middle-end/80222 (may_alias folded away)Richard Biener1-3/+4
2017-03-28 Richard Biener <rguenther@suse.de> PR middle-end/80222 * gimple-fold.c (gimple_fold_indirect_ref): Do not touch TYPE_REF_CAN_ALIAS_ALL references. * fold-const.c (fold_indirect_ref_1): Likewise. * g++.dg/pr80222.C: New testcase. From-SVN: r246527
2017-03-27re PR tree-optimization/80171 (ICE (Segmentation fault) with optimization)Richard Biener1-2/+5
2017-03-27 Richard Biener <rguenther@suse.de> PR middle-end/80171 * gimple-fold.c (fold_ctor_reference): Properly guard against NULL return value from canonicalize_constructor_val. * g++.dg/torture/pr80171.C: New testcase. From-SVN: r246490
2017-03-03re PR middle-end/79805 (ICE (verify_flow_info failed) with ↵Jakub Jelinek1-7/+29
-fnon-call-exceptions -O) PR middle-end/79805 * internal-fn.def (ATOMIC_BIT_TEST_AND_SET, ATOMIC_BIT_TEST_AND_RESET, ATOMIC_BIT_TEST_AND_COMPLEMENT, ATOMIC_COMPARE_EXCHANGE): Remove ECF_NOTHROW. * gimple-fold.c (fold_builtin_atomic_compare_exchange): Set gimple_call_nothrow_p flag based on whether original builtin can throw. If it can, emit following stmts on the fallthrough edge. * tree-ssa-ccp.c (optimize_atomic_bit_test_and): Similarly, except don't create new bb if inserting just debug stmts on the edge, try to insert them on the fallthru bb or just reset debug stmts. * g++.dg/opt/pr79805.C: New test. From-SVN: r245882
2017-02-06PR tree-optimization/ 79376 - wrong lower bound with %s and non-constantMartin Sebor1-2/+3
strings in -Wformat-overflow gcc/ChangeLog: * gimple-fold.c (get_range_strlen): Set the minimum length to zero. From-SVN: r245221
2017-02-03PR tree-optimization/79352 - -fprintf-return-value doesn't handle ↵Martin Sebor1-13/+31
flexible-like array members properly gcc/ChangeLog: PR tree-optimization/79352 * gimple-fold.c (get_range_strlen): Add argument. (get_range_strlen): Change return type to bool. (get_maxval_strlen): Pass in a dummy argument. * gimple-fold.h (get_range_strlen): Change return type to bool. * gimple-ssa-sprintf.c (get_string_length): Set unlikely counter. * tree.h (array_at_struct_end_p): Add argument. * tree.c (array_at_struct_end_p): Handle it. gcc/testsuite/ChangeLog: PR tree-optimization/79352 * gcc.dg/tree-ssa/pr79352.c: New test. From-SVN: r245156
2017-01-01Update copyright years.Jakub Jelinek1-1/+1
From-SVN: r243994
2016-12-14Split omp-low into multiple filesMartin Jambor1-3/+3
2016-12-14 Martin Jambor <mjambor@suse.cz> * omp-general.h: New file. * omp-general.c: New file. * omp-expand.h: Likewise. * omp-expand.c: Likewise. * omp-offload.h: Likewise. * omp-offload.c: Likewise. * omp-grid.c: Likewise. * omp-grid.c: Likewise. * omp-low.h: Include omp-general.h and omp-grid.h. Removed includes of params.h, symbol-summary.h, lto-section-names.h, cilk.h, tree-eh.h, ipa-prop.h, tree-cfgcleanup.h, cfgloop.h, except.h, expr.h, stmt.h, varasm.h, calls.h, explow.h, dojump.h, flags.h, tree-into-ssa.h, tree-cfg.h, cfganal.h, alias.h, emit-rtl.h, optabs.h, expmed.h, alloc-pool.h, cfghooks.h, rtl.h and memmodel.h. (omp_find_combined_for): Declare. (find_omp_clause): Renamed to omp_find_clause and moved to omp-general.h. (free_omp_regions): Renamed to omp_free_regions and moved to omp-expand.h. (replace_oacc_fn_attrib): Renamed to oacc_replace_fn_attrib and moved to omp-general.h. (set_oacc_fn_attrib): Renamed to oacc_set_fn_attrib and moved to omp-general.h. (build_oacc_routine_dims): Renamed to oacc_build_routine_dims and moved to omp-general.h. (get_oacc_fn_attrib): Renamed to oacc_get_fn_attrib and moved to omp-general.h. (oacc_fn_attrib_kernels_p): Moved to omp-general.h. (get_oacc_fn_dim_size): Renamed to oacc_get_fn_dim_size and moved to omp-general.c. (omp_expand_local): Moved to omp-expand.h. (make_gimple_omp_edges): Renamed to omp_make_gimple_edges and moved to omp-expand.h. (omp_finish_file): Moved to omp-offload.h. (default_goacc_validate_dims): Renamed to oacc_default_goacc_validate_dims and moved to omp-offload.h. (offload_funcs, offload_vars): Moved to omp-offload.h. * omp-low.c: Include omp-general.h, omp-offload.h and omp-grid.h. (omp_region): Moved to omp-expand.c. (omp_for_data_loop): Moved to omp-general.h. (omp_for_data): Likewise. (oacc_loop): Moved to omp-offload.c. (oacc_loop_flags): Moved to omp-general.h. (offload_funcs, offload_vars): Moved to omp-offload.c. (root_omp_region): Moved to omp-expand.c. (omp_any_child_fn_dumped): Likewise. (find_omp_clause): Renamed to omp_find_clause and moved to omp-general.c. (is_combined_parallel): Moved to omp-expand.c. (is_reference): Renamed to omp_is_reference and and moved to omp-general.c. (adjust_for_condition): Renamed to omp_adjust_for_condition and moved to omp-general.c. (get_omp_for_step_from_incr): Renamed to omp_get_for_step_from_incr and moved to omp-general.c. (extract_omp_for_data): Renamed to omp_extract_for_data and moved to omp-general.c. (workshare_safe_to_combine_p): Moved to omp-expand.c. (omp_adjust_chunk_size): Likewise. (get_ws_args_for): Likewise. (get_base_type): Removed. (dump_omp_region): Moved to omp-expand.c. (debug_omp_region): Likewise. (debug_all_omp_regions): Likewise. (new_omp_region): Likewise. (free_omp_region_1): Likewise. (free_omp_regions): Renamed to omp_free_regions and moved to omp-expand.c. (find_combined_for): Renamed to omp_find_combined_for, made global. (build_omp_barrier): Renamed to omp_build_barrier and moved to omp-general.c. (omp_max_vf): Moved to omp-general.c. (omp_max_simt_vf): Likewise. (gimple_build_cond_empty): Moved to omp-expand.c. (parallel_needs_hsa_kernel_p): Likewise. (expand_omp_build_assign): Moved declaration to omp-expand.c. (expand_parallel_call): Moved to omp-expand.c. (expand_cilk_for_call): Likewise. (expand_task_call): Likewise. (vec2chain): Likewise. (remove_exit_barrier): Likewise. (remove_exit_barriers): Likewise. (optimize_omp_library_calls): Likewise. (expand_omp_regimplify_p): Likewise. (expand_omp_build_assign): Likewise. (expand_omp_taskreg): Likewise. (oacc_collapse): Likewise. (expand_oacc_collapse_init): Likewise. (expand_oacc_collapse_vars): Likewise. (expand_omp_for_init_counts): Likewise. (expand_omp_for_init_vars): Likewise. (extract_omp_for_update_vars): Likewise. (expand_omp_ordered_source): Likewise. (expand_omp_ordered_sink): Likewise. (expand_omp_ordered_source_sink): Likewise. (expand_omp_for_ordered_loops): Likewise. (expand_omp_for_generic): Likewise. (expand_omp_for_static_nochunk): Likewise. (find_phi_with_arg_on_edge): Likewise. (expand_omp_for_static_chunk): Likewise. (expand_cilk_for): Likewise. (expand_omp_simd): Likewise. (expand_omp_taskloop_for_outer): Likewise. (expand_omp_taskloop_for_inner): Likewise. (expand_oacc_for): Likewise. (expand_omp_for): Likewise. (expand_omp_sections): Likewise. (expand_omp_single): Likewise. (expand_omp_synch): Likewise. (expand_omp_atomic_load): Likewise. (expand_omp_atomic_store): Likewise. (expand_omp_atomic_fetch_op): Likewise. (expand_omp_atomic_pipeline): Likewise. (expand_omp_atomic_mutex): Likewise. (expand_omp_atomic): Likewise. (oacc_launch_pack): and moved to omp-general.c, made public. (OACC_FN_ATTRIB): Likewise. (replace_oacc_fn_attrib): Renamed to oacc_replace_fn_attrib and moved to omp-general.c. (set_oacc_fn_attrib): Renamed to oacc_set_fn_attrib and moved to omp-general.c. (build_oacc_routine_dims): Renamed to oacc_build_routine_dims and moved to omp-general.c. (get_oacc_fn_attrib): Renamed to oacc_get_fn_attrib and moved to omp-general.c. (oacc_fn_attrib_kernels_p): Moved to omp-general.c. (oacc_fn_attrib_level): Moved to omp-offload.c. (get_oacc_fn_dim_size): Renamed to oacc_get_fn_dim_size and moved to omp-general.c. (get_oacc_ifn_dim_arg): Renamed to oacc_get_ifn_dim_arg and moved to omp-general.c. (mark_loops_in_oacc_kernels_region): Moved to omp-expand.c. (grid_launch_attributes_trees): Likewise. (grid_attr_trees): Likewise. (grid_create_kernel_launch_attr_types): Likewise. (grid_insert_store_range_dim): Likewise. (grid_get_kernel_launch_attributes): Likewise. (get_target_argument_identifier_1): Likewise. (get_target_argument_identifier): Likewise. (get_target_argument_value): Likewise. (push_target_argument_according_to_value): Likewise. (get_target_arguments): Likewise. (expand_omp_target): Likewise. (grid_expand_omp_for_loop): Moved to omp-grid.c. (grid_arg_decl_map): Likewise. (grid_remap_kernel_arg_accesses): Likewise. (grid_expand_target_grid_body): Likewise. (expand_omp): Renamed to omp_expand and moved to omp-expand.c. (build_omp_regions_1): Moved to omp-expand.c. (build_omp_regions_root): Likewise. (omp_expand_local): Likewise. (build_omp_regions): Likewise. (execute_expand_omp): Likewise. (pass_data_expand_omp): Likewise. (pass_expand_omp): Likewise. (make_pass_expand_omp): Likewise. (pass_data_expand_omp_ssa): Likewise. (pass_expand_omp_ssa): Likewise. (make_pass_expand_omp_ssa): Likewise. (grid_lastprivate_predicate): Renamed to omp_grid_lastprivate_predicate and moved to omp-grid.c, made public. (grid_prop): Moved to omp-grid.c. (GRID_MISSED_MSG_PREFIX): Likewise. (grid_safe_assignment_p): Likewise. (grid_seq_only_contains_local_assignments): Likewise. (grid_find_single_omp_among_assignments_1): Likewise. (grid_find_single_omp_among_assignments): Likewise. (grid_find_ungridifiable_statement): Likewise. (grid_parallel_clauses_gridifiable): Likewise. (grid_inner_loop_gridifiable_p): Likewise. (grid_dist_follows_simple_pattern): Likewise. (grid_gfor_follows_tiling_pattern): Likewise. (grid_call_permissible_in_distribute_p): Likewise. (grid_handle_call_in_distribute): Likewise. (grid_dist_follows_tiling_pattern): Likewise. (grid_target_follows_gridifiable_pattern): Likewise. (grid_remap_prebody_decls): Likewise. (grid_var_segment): Likewise. (grid_mark_variable_segment): Likewise. (grid_copy_leading_local_assignments): Likewise. (grid_process_grid_body): Likewise. (grid_eliminate_combined_simd_part): Likewise. (grid_mark_tiling_loops): Likewise. (grid_mark_tiling_parallels_and_loops): Likewise. (grid_process_kernel_body_copy): Likewise. (grid_attempt_target_gridification): Likewise. (grid_gridify_all_targets_stmt): Likewise. (grid_gridify_all_targets): Renamed to omp_grid_gridify_all_targets and moved to omp-grid.c, made public. (make_gimple_omp_edges): Renamed to omp_make_gimple_edges and moved to omp-expand.c. (add_decls_addresses_to_decl_constructor): Moved to omp-offload.c. (omp_finish_file): Likewise. (oacc_thread_numbers): Likewise. (oacc_xform_loop): Likewise. (oacc_default_dims, oacc_min_dims): Likewise. (oacc_parse_default_dims): Likewise. (oacc_validate_dims): Likewise. (new_oacc_loop_raw): Likewise. (new_oacc_loop_outer): Likewise. (new_oacc_loop): Likewise. (new_oacc_loop_routine): Likewise. (finish_oacc_loop): Likewise. (free_oacc_loop): Likewise. (dump_oacc_loop_part): Likewise. (dump_oacc_loop): Likewise. (debug_oacc_loop): Likewise. (oacc_loop_discover_walk): Likewise. (oacc_loop_sibling_nreverse): Likewise. (oacc_loop_discovery): Likewise. (oacc_loop_xform_head_tail): Likewise. (oacc_loop_xform_loop): Likewise. (oacc_loop_process): Likewise. (oacc_loop_fixed_partitions): Likewise. (oacc_loop_auto_partitions): Likewise. (oacc_loop_partition): Likewise. (default_goacc_fork_join): Likewise. (default_goacc_reduction): Likewise. (execute_oacc_device_lower): Likewise. (default_goacc_validate_dims): Likewise. (default_goacc_dim_limit): Likewise. (pass_data_oacc_device_lower): Likewise. (pass_oacc_device_lower): Likewise. (make_pass_oacc_device_lower): Likewise. (execute_omp_device_lower): Likewise. (pass_data_omp_device_lower): Likewise. (pass_omp_device_lower): Likewise. (make_pass_omp_device_lower): Likewise. (pass_data_omp_target_link): Likewise. (pass_omp_target_link): Likewise. (find_link_var_op): Likewise. (pass_omp_target_link::execute): Likewise. (make_pass_omp_target_link): Likewise. * Makefile.in (OBJS): Added omp-offload.o, omp-expand.o, omp-general.o and omp-grid.o. (GTFILES): Added omp-offload.h, omp-offload.c and omp-expand.c, removed omp-low.h. * gimple-fold.c: Include omp-general.h instead of omp-low.h. (fold_internal_goacc_dim): Adjusted calls to get_oacc_ifn_dim_arg and get_oacc_fn_dim_size to use their new names. * gimplify.c: Include omp-low.h. (omp_notice_variable): Adjust the call to get_oacc_fn_attrib to use its new name. (gimplify_omp_task): Adjusted calls to find_omp_clause to use its new name. (gimplify_omp_for): Likewise. * lto-cgraph.c: Include omp-offload.h instead of omp-low.h. * toplev.c: Include omp-offload.h instead of omp-low.h. * tree-cfg.c: Include omp-general.h instead of omp-low.h. Also include omp-expand.h. (make_edges_bb): Adjusted the call to make_gimple_omp_edges to use its new name. (make_edges): Adjust the call to free_omp_regions to use its new name. * tree-parloops.c: Include omp-general.h. (create_parallel_loop): Adjusted the call to set_oacc_fn_attrib to use its new name. (parallelize_loops): Adjusted the call to get_oacc_fn_attrib to use its new name. * tree-ssa-loop.c: Include omp-general.h instead of omp-low.h. (gate_oacc_kernels): Adjusted the call to get_oacc_fn_attrib to use its new name. * tree-vrp.c: Include omp-general.h instead of omp-low.h. (extract_range_basic): Adjusted calls to get_oacc_ifn_dim_arg and get_oacc_fn_dim_size to use their new names. * varpool.c: Include omp-offload.h instead of omp-low.h. * gengtype.c (open_base_files): Replace omp-low.h with omp-offload.h in ifiles. * config/nvptx/nvptx.c: Include omp-general.c. (nvptx_expand_call): Adjusted the call to get_oacc_fn_attrib to use its new name. (nvptx_reorg): Likewise. (nvptx_record_offload_symbol): Likewise. gcc/c-family: * c-omp.c: Include omp-general.h instead of omp-low.h. (c_finish_oacc_wait): Adjusted call to find_omp_clause to use its new name. gcc/c/ * c-parser.c: Include omp-general.h and omp-offload.h instead of omp-low.h. (c_finish_oacc_routine): Adjusted call to get_oacc_fn_attrib, build_oacc_routine_dims and replace_oacc_fn_attrib to use their new names. (c_parser_oacc_enter_exit_data): Adjusted call to find_omp_clause to use its new name. (c_parser_oacc_update): Likewise. (c_parser_omp_simd): Likewise. (c_parser_omp_target_update): Likewise. * c-typeck.c: Include omp-general.h instead of omp-low.h. (c_finish_omp_cancel): Adjusted call to find_omp_clause to use its new name. (c_finish_omp_cancellation_point): Likewise. * gimple-parser.c: Do not include omp-low.h gcc/cp/ * parser.c: Include omp-general.h and omp-offload.h instead of omp-low.h. (cp_parser_omp_simd): Adjusted calls to find_omp_clause to use its new name. (cp_parser_omp_target_update): Likewise. (cp_parser_oacc_declare): Likewise. (cp_parser_oacc_enter_exit_data): Likewise. (cp_parser_oacc_update): Likewise. (cp_finalize_oacc_routine): Adjusted call to get_oacc_fn_attrib, build_oacc_routine_dims and replace_oacc_fn_attrib to use their new names. * semantics.c: Include omp-general insteda of omp-low.h. (finish_omp_for): Adjusted calls to find_omp_clause to use its new name. (finish_omp_cancel): Likewise. (finish_omp_cancellation_point): Likewise. fortran/ * trans-openmp.c: Include omp-general.h. From-SVN: r243673
2016-12-07builtins.c (fold_builtin_strstr): Removed.Jakub Jelinek1-2/+66
* builtins.c (fold_builtin_strstr): Removed. (fold_builtin_2): Don't call fold_builtin_strstr. * gimple-fold.c (gimple_fold_builtin_strchr): Check is_strrchr earlier in the strrchr (x, 0) -> strchr (x, 0) optimization. (gimple_fold_builtin_strstr): New function. (gimple_fold_builtin): Call it. * fold-const-call.c (fold_const_call): Handle CFN_BUILT_IN_STRSTR. * gcc.dg/builtin-strstr-1.c: New test. * g++.dg/cpp0x/constexpr-strstr.C: New test. From-SVN: r243378
2016-11-25gimple-fold.c (fold_stmt_1): Check may_propagate_copy before valueizing ↵Richard Biener1-1/+2
return stmts. 2016-11-25 Richard Biener <rguenther@suse.de> * gimple-fold.c (fold_stmt_1): Check may_propagate_copy before valueizing return stmts. From-SVN: r242873
2016-11-23re PR middle-end/78153 (strlen return value can be assumed to be less than ↵Prathamesh Kulkarni1-0/+17
PTRDIFF_MAX) 2016-11-23 Prathamesh Kulkarni <prathamesh.kulkarni@linaro.org> PR middle-end/78153 * gimple-fold.c (fold_stmt_1): Handle case for GIMPLE_RETURN. * tree-vrp.c (extract_range_basic): Handle case for CFN_BUILT_IN_STRLEN. testsuite/ * gcc.dg/tree-ssa/pr78153-1.c: New test. * gcc.dg/tree-ssa/pr78153-2.c: Likewise. From-SVN: r242786
2016-11-09fold-const.c (tree_swap_operands_p): Remove unused arg.Richard Biener1-2/+2
2016-11-09 Richard Biener <rguenther@suse.de> * fold-const.c (tree_swap_operands_p): Remove unused arg. * fold-const.c (tree_swap_operands_p): Likewise. (fold_binary_loc): Adjust. (fold_ternary_loc): Likewise. * genmatch.c (dt_operand::gen_gimple_exp): Likewise. * gimple-fold.c (fold_stmt_1): Likewise. * gimple-match-head.c (gimple_resimplify2): Likewise. (gimple_resimplify3): Likewise. (gimple_simplify): Likewise. * tree-ssa-dom.c (record_equality): Likewise. * tree-ssa-reassoc.c (optimize_range_tests_var_bound): Likewise. * tree-ssa-sccvn.c (vn_nary_op_compute_hash): Likewise. * tree-ssa-threadedge.c (simplify_control_stmt_condition_1): Likewise. From-SVN: r242004
2016-10-14Fold __builtin_memchr functionMartin Liska1-14/+63
* builtins.h(target_char_cst_p): Declare the function. * builtins.c (fold_builtin_memchr): Remove. (target_char_cst_p): Move the function from gimple-fold.c. (fold_builtin_3): Do not call the function. * gimple-fold.c (gimple_fold_builtin_memchr): New function. (gimple_fold_builtin): Call the function. * fold-const-call.c (fold_const_call_1): Handle CFN_BUILT_IN_MEMCHR. From-SVN: r241160
2016-10-14Fold __builtin_str{n}{case}cmp functionsMartin Liska1-1/+188
* builtins.c (fold_builtin_strcmp): Remove function. (fold_builtin_strncmp): Likewise. (fold_builtin_2): Remove call of the function. (fold_builtin_3): Likewise. * fold-const-call.c (fold_const_call): Add constant folding for CFN_BUILT_IN_STRCASECMP and CFN_BUILT_IN_STRNCASECMP. * fold-const-call.h (build_cmp_result): Declare the function. * gimple-fold.c (gimple_load_first_char): New function. (gimple_fold_builtin_string_compare): Likewise. (gimple_fold_builtin): Call the function. From-SVN: r241159
2016-10-12Add a helper function: create_tmp_reg_or_ssa_nameMartin Liska1-41/+26
* gimple-fold.c (create_tmp_reg_or_ssa_name): New function. (gimple_fold_builtin_memory_op): Use the function. (gimple_fold_builtin_strchr): Likewise. (gimple_fold_builtin_strcat): Likewise. (gimple_build): Likewise. From-SVN: r241030
2016-10-09tree-ssa.c (target_for_debug_bind, [...]): Use VAR_P and/or ↵Jakub Jelinek1-7/+5
VAR_OR_FUNCTION_DECL_P macros. * tree-ssa.c (target_for_debug_bind, verify_phi_args, ssa_undefined_value_p, maybe_optimize_var): Use VAR_P and/or VAR_OR_FUNCTION_DECL_P macros. * tree-chkp.c (chkp_register_var_initializer, chkp_make_static_bounds, chkp_get_bounds_for_decl_addr, chkp_parse_array_and_component_ref, chkp_find_bounds_1): Likewise. * ipa-polymorphic-call.c (decl_maybe_in_construction_p): Likewise. * hsa-gen.c (get_symbol_for_decl): Likewise. * cgraphunit.c (check_global_declaration, analyze_functions, handle_alias_pairs, thunk_adjust, cgraph_node::expand_thunk): Likewise. * gimple-fold.c (can_refer_decl_in_current_unit_p, canonicalize_constructor_val, gimple_get_virt_method_for_vtable): Likewise. * tree.c (set_decl_section_name, copy_node_stat, need_assembler_name_p, free_lang_data_in_decl, find_decls_types_r, merge_dllimport_decl_attributes, handle_dll_attribute, decl_init_priority_insert, auto_var_in_fn_p, array_at_struct_end_p, verify_type): Likewise. * gimple-ssa-isolate-paths.c (find_implicit_erroneous_behavior, find_explicit_erroneous_behavior): Likewise. * sdbout.c (sdbout_toplevel_data, sdbout_late_global_decl): Likewise. * ipa.c (process_references): Likewise. * tree-chkp-opt.c (chkp_get_check_result): Likewise. * varasm.c (get_block_for_decl, use_blocks_for_decl_p, make_decl_rtl, notice_global_symbol, assemble_variable, mark_decl_referenced, build_constant_desc, output_constant_def_contents, do_assemble_alias, make_decl_one_only, default_section_type_flags, categorize_decl_for_section, default_encode_section_info): Likewise. * trans-mem.c (requires_barrier): Likewise. * gimple-expr.c (mark_addressable): Likewise. * cfgexpand.c (add_scope_conflicts_1, expand_one_var, expand_used_vars_for_block, clear_tree_used, stack_protect_decl_p, expand_debug_expr): Likewise. * tree-dump.c (dequeue_and_dump): Likewise. * ubsan.c (instrument_bool_enum_load): Likewise. * tree-pretty-print.c (print_declaration): Likewise. * simplify-rtx.c (delegitimize_mem_from_attrs): Likewise. * tree-ssa-uninit.c (warn_uninitialized_vars): Likewise. * asan.c (asan_protect_global, instrument_derefs): Likewise. * tree-into-ssa.c (rewrite_stmt, maybe_register_def, pass_build_ssa::execute): Likewise. * var-tracking.c (var_debug_decl, track_expr_p): Likewise. * tree-ssa-loop-ivopts.c (force_expr_to_var_cost, split_address_cost): Likewise. * ipa-split.c (test_nonssa_use, consider_split, mark_nonssa_use): Likewise. * tree-inline.c (insert_debug_decl_map, remap_ssa_name, can_be_nonlocal, remap_decls, copy_debug_stmt, initialize_inlined_parameters, add_local_variables, reset_debug_binding, replace_locals_op): Likewise. * dse.c (can_escape): Likewise. * ipa-devirt.c (compare_virtual_tables, referenced_from_vtable_p): Likewise. * tree-diagnostic.c (default_tree_printer): Likewise. * tree-streamer-in.c (unpack_ts_decl_common_value_fields, unpack_ts_decl_with_vis_value_fields, lto_input_ts_decl_common_tree_pointers): Likewise. * builtins.c (builtin_save_expr, fold_builtin_expect, readonly_data_expr): Likewise. * tree-ssa-structalias.c (new_var_info, get_constraint_for_ssa_var, create_variable_info_for, set_uids_in_ptset, visit_loadstore): Likewise. * gimple-streamer-out.c (output_gimple_stmt): Likewise. * gimplify.c (force_constant_size, gimplify_bind_expr, gimplify_decl_expr, gimplify_var_or_parm_decl, gimplify_compound_lval, gimplify_init_constructor, gimplify_modify_expr, gimplify_asm_expr, gimplify_oacc_declare, gimplify_type_sizes): Likewise. * cgraphbuild.c (record_reference, record_type_list, mark_address, mark_load, mark_store, pass_build_cgraph_edges::execute): Likewise. * tree-ssa-live.c (mark_all_vars_used_1, remove_unused_scope_block_p, remove_unused_locals): Likewise. * tree-ssa-alias.c (ptr_deref_may_alias_decl_p, ptrs_compare_unequal, ref_maybe_used_by_call_p_1, call_may_clobber_ref_p_1): Likewise. * function.c (instantiate_expr, instantiate_decls_1, setjmp_vars_warning, add_local_decl): Likewise. * alias.c (ao_ref_from_mem, get_alias_set, compare_base_symbol_refs): Likewise. * tree-stdarg.c (find_va_list_reference, va_list_counter_struct_op, va_list_ptr_read, va_list_ptr_write, check_all_va_list_escapes, optimize_va_list_gpr_fpr_size): Likewise. * tree-nrv.c (pass_nrv::execute): Likewise. * tsan.c (instrument_expr): Likewise. * tree-ssa-dce.c (remove_dead_stmt): Likewise. * vtable-verify.c (verify_bb_vtables): Likewise. * tree-dfa.c (ssa_default_def, set_ssa_default_def, get_ref_base_and_extent): Likewise. * toplev.c (wrapup_global_declaration_1, wrapup_global_declaration_2): Likewise. * tree-sra.c (static bool constant_decl_p, find_var_candidates, analyze_all_variable_accesses): Likewise. * tree-nested.c (get_nonlocal_debug_decl, convert_nonlocal_omp_clauses, note_nonlocal_vla_type, note_nonlocal_block_vlas, convert_nonlocal_reference_stmt, get_local_debug_decl, convert_local_omp_clauses, convert_local_reference_stmt, nesting_copy_decl, remap_vla_decls): Likewise. * tree-vect-data-refs.c (vect_can_force_dr_alignment_p): Likewise. * stmt.c (decl_overlaps_hard_reg_set_p): Likewise. * dbxout.c (dbxout_late_global_decl, dbxout_type_fields, dbxout_symbol, dbxout_common_check): Likewise. * expr.c (expand_assignment, expand_expr_real_2, expand_expr_real_1, string_constant): Likewise. * hsa.c (hsa_get_declaration_name): Likewise. * passes.c (rest_of_decl_compilation): Likewise. * tree-ssanames.c (make_ssa_name_fn): Likewise. * tree-streamer-out.c (pack_ts_decl_common_value_fields, pack_ts_decl_with_vis_value_fields, write_ts_decl_common_tree_pointers): Likewise. * stor-layout.c (place_field): Likewise. * symtab.c (symtab_node::maybe_create_reference, symtab_node::verify_base, symtab_node::make_decl_local, symtab_node::copy_visibility_from, symtab_node::can_increase_alignment_p): Likewise. * dwarf2out.c (add_var_loc_to_decl, tls_mem_loc_descriptor, decl_by_reference_p, reference_to_unused, rtl_for_decl_location, fortran_common, add_location_or_const_value_attribute, add_scalar_info, add_linkage_name, set_block_abstract_flags, local_function_static, gen_variable_die, dwarf2out_late_global_decl, optimize_one_addr_into_implicit_ptr, optimize_location_into_implicit_ptr): Likewise. * gimple-low.c (record_vars_into): Likewise. * ipa-visibility.c (update_vtable_references): Likewise. * tree-ssa-address.c (fixed_address_object_p, copy_ref_info): Likewise. * lto-streamer-out.c (tree_is_indexable, get_symbol_initial_value, DFS::DFS_write_tree_body, write_symbol): Likewise. * langhooks.c (lhd_warn_unused_global_decl, lhd_set_decl_assembler_name): Likewise. * attribs.c (decl_attributes): Likewise. * except.c (output_ttype): Likewise. * varpool.c (varpool_node::get_create, ctor_for_folding, varpool_node::assemble_decl, varpool_node::create_alias): Likewise. * fold-const.c (fold_unary_loc): Likewise. * ipa-prop.c (ipa_compute_jump_functions_for_edge, ipa_find_agg_cst_from_init): Likewise. * omp-low.c (expand_omp_regimplify_p, expand_omp_taskreg, expand_omp_target, lower_omp_regimplify_p, grid_reg_assignment_to_local_var_p, grid_remap_prebody_decls, find_link_var_op): Likewise. * tree-chrec.c (chrec_contains_symbols): Likewise. * tree-cfg.c (verify_address, verify_expr, verify_expr_location_1, gimple_duplicate_bb, move_stmt_op, replace_block_vars_by_duplicates, execute_fixup_cfg): Likewise. From-SVN: r240900
2016-10-05Move all existing strchr and strrchr folding from builtins.c to gimple-fold.c.Wilco Dijkstra1-8/+61
gcc/ * builtins.c (fold_builtin_strchr): Remove function. (fold_builtin_strrchr): Likewise. (fold_builtin2): Remove strchr, index, strrchr, rindex cases. * gimple-fold.c (target_char_cst_p): New function. (gimple_fold_builtin_strchr) Add more foldings. (gimple_fold_builtin): Add index, strrchr, rindex cases. From-SVN: r240782
2016-09-28If strchr can't be folded in gimple-fold...Wilco Dijkstra1-1/+4
If strchr can't be folded in gimple-fold, we still need to fall into the generic code so the folding code in builtins.c is also called. gcc/ * gimple-fold.c (gimple_fold_builtin): After failing to fold strchr, also try the generic folding. From-SVN: r240585
2016-09-28Optimize strchr (s, 0) to s + strlen (s).Wilco Dijkstra1-0/+51
Optimize strchr (s, 0) to s + strlen (s). strchr (s, 0) appears a common idiom for finding the end of a string, however it is not a very efficient way of doing so. Strlen is a much simpler operation which is significantly faster (eg. on x86 strlen is 50% faster for strings of 8 bytes and about twice as fast as strchr on strings of 1KB). gcc/ * gimple-fold.c (gimple_fold_builtin_strchr): New function to optimize strchr (s, 0) to strlen. (gimple_fold_builtin): Add BUILT_IN_STRCHR case. testsuite/ * gcc.dg/strlenopt-20.c: Update test. * gcc.dg/strlenopt-21.c: Likewise. * gcc.dg/strlenopt-22.c: Likewise. * gcc.dg/strlenopt-22g.c: Likewise. * gcc.dg/strlenopt-26.c: Likewise. * gcc.dg/strlenopt-5.c: Likewise. * gcc.dg/strlenopt-7.c: Likewise. * gcc.dg/strlenopt-9.c: Likewise. From-SVN: r240568
2016-09-22re PR tree-optimization/77697 (suspicious code in tree-ssa-forwprop.c)Richard Biener1-3/+4
2016-09-22 Richard Biener <rguenther@suse.de> PR middle-end/77697 * gimple-fold.c (fold_array_ctor_reference): Turn asserts into fold fails. From-SVN: r240353
2016-09-20PR middle-end/49905 - Better sanity checking on sprintf src & dest toMartin Sebor1-26/+97
gcc/ChangeLog: PR middle-end/49905 * Makefile.in (OBJS): Add gimple-ssa-sprintf.o. * config/linux.h (TARGET_PRINTF_POINTER_FORMAT): Redefine. * config/linux.c (gnu_libc_printf_pointer_format): New function. * config/sol2.h (TARGET_PRINTF_POINTER_FORMAT): Same. * config/sol2.c (solaris_printf_pointer_format): New function. * doc/invoke.texi (-Wformat-length, -fprintf-return-value): New options. * doc/tm.texi.in (TARGET_PRINTF_POINTER_FORMAT): Document. * doc/tm.texi: Regenerate. * gimple-fold.h (get_range_strlen): New function. (get_maxval_strlen): Declare existing function. * gimple-fold.c (get_range_strlen): Add arguments and compute both maximum and minimum. (get_range_strlen): Define overload. (get_maxval_strlen): Adjust. * gimple-ssa-sprintf.c: New file and pass. * passes.def (pass_sprintf_length): Add new pass. * targhooks.h (default_printf_pointer_format): Declare new function. (gnu_libc_printf_pointer_format): Same. (solaris_libc_printf_pointer_format): Same. * targhooks.c (default_printf_pointer_format): Define new function. * tree-pass.h (make_pass_sprintf_length): Declare new function. * print-tree.c: Increase buffer size. gcc/c-family/ChangeLog: PR middle-end/49905 * c.opt: Add -Wformat-length and -fprintf-return-value. gcc/testsuite/ChangeLog: PR middle-end/49905 * gcc.dg/builtin-stringop-chk-1.c: Adjust. * gcc.dg/tree-ssa/builtin-sprintf-warn-1.c: New test. * gcc.dg/tree-ssa/builtin-sprintf-warn-2.c: New test. * gcc.dg/tree-ssa/builtin-sprintf-warn-3.c: New test. * gcc.dg/tree-ssa/builtin-sprintf-warn-4.c: New test. * gcc.dg/tree-ssa/builtin-sprintf.c: New test. * gcc.dg/tree-ssa/builtin-sprintf-2.c: New test. From-SVN: r240298
2016-09-16Add inline functions for various bitwise operations.Jason Merrill1-1/+1
* hwint.h (least_bit_hwi, pow2_or_zerop, pow2p_hwi, ctz_or_zero): New. * hwint.c (exact_log2): Use pow2p_hwi. (ctz_hwi, ffs_hwi): Use least_bit_hwi. * alias.c (memrefs_conflict_p): Use pow2_or_zerop. * builtins.c (get_object_alignment_2, get_object_alignment) (get_pointer_alignment, fold_builtin_atomic_always_lock_free): Use least_bit_hwi. * calls.c (compute_argument_addresses, store_one_arg): Use least_bit_hwi. * cfgexpand.c (expand_one_stack_var_at): Use least_bit_hwi. * combine.c (force_to_mode): Use least_bit_hwi. * emit-rtl.c (set_mem_attributes_minus_bitpos, adjust_address_1): Use least_bit_hwi. * expmed.c (synth_mult, expand_divmod): Use ctz_or_zero, ctz_hwi. (init_expmed_one_conv): Use pow2p_hwi. * fold-const.c (round_up_loc, round_down_loc): Use pow2_or_zerop. (fold_binary_loc): Use pow2p_hwi. * function.c (assign_parm_find_stack_rtl): Use least_bit_hwi. * gimple-fold.c (gimple_fold_builtin_memory_op): Use pow2p_hwi. * gimple-ssa-strength-reduction.c (replace_ref): Use least_bit_hwi. * hsa-gen.c (gen_hsa_addr_with_align, hsa_bitmemref_alignment): Use least_bit_hwi. * ipa-cp.c (ipcp_alignment_lattice::meet_with_1): Use least_bit_hwi. * ipa-prop.c (ipa_modify_call_arguments): Use least_bit_hwi. * omp-low.c (oacc_loop_fixed_partitions) (oacc_loop_auto_partitions): Use least_bit_hwi. * rtlanal.c (nonzero_bits1): Use ctz_or_zero. * stor-layout.c (place_field): Use least_bit_hwi. * tree-pretty-print.c (dump_generic_node): Use pow2p_hwi. * tree-sra.c (build_ref_for_offset): Use least_bit_hwi. * tree-ssa-ccp.c (ccp_finalize): Use least_bit_hwi. * tree-ssa-math-opts.c (bswap_replace): Use least_bit_hwi. * tree-ssa-strlen.c (handle_builtin_memcmp): Use pow2p_hwi. * tree-vect-data-refs.c (vect_analyze_group_access_1) (vect_grouped_store_supported, vect_grouped_load_supported) (vect_permute_load_chain, vect_shift_permute_load_chain) (vect_transform_grouped_load): Use pow2p_hwi. * tree-vect-generic.c (expand_vector_divmod): Use ctz_or_zero. * tree-vect-patterns.c (vect_recog_divmod_pattern): Use ctz_or_zero. * tree-vect-stmts.c (vectorizable_mask_load_store): Use least_bit_hwi. * tsan.c (instrument_expr): Use least_bit_hwi. * var-tracking.c (negative_power_of_two_p): Use pow2_or_zerop. From-SVN: r240194
2016-08-17gimple-fold.c (gimple_fold_call): Use gimple_call_noreturn_p instead of ↵Jakub Jelinek1-1/+1
testing ECF_NORETURN bit in gimple_call_flags. * gimple-fold.c (gimple_fold_call): Use gimple_call_noreturn_p instead of testing ECF_NORETURN bit in gimple_call_flags. * tree-cfg.c (make_edges_bb, execute_fixup_cfg): Likewise. * predict.c (tree_bb_level_predictions): Likewise. * gimple-low.c (gimple_stmt_may_fallthru): Likewise. From-SVN: r239539
2016-07-19re PR middle-end/71874 (memmove works wrong)Jakub Jelinek1-9/+8
PR middle-end/71874 * gimple-fold.c (fold_builtin_memory_op): Use get_addr_base_and_unit_offset instead of get_ref_base_and_extent. * g++.dg/torture/pr71874.C: New test. From-SVN: r238484
2016-07-19gimple-fold.c (get_base_constructor): Add VIEW_CONVERT case, handle all ↵Richard Biener1-1/+10
tcc_constant bases and valueize SSA names. 2016-07-19 Richard Biener <rguenther@suse.de> * gimple-fold.c (get_base_constructor): Add VIEW_CONVERT case, handle all tcc_constant bases and valueize SSA names. * tree-ssa-sccvn.c (fully_constant_vn_reference_p): Handle tcc_constant bases. * c-c++-common/vector-subscript-6.c: New testcase. * c-c++-common/vector-subscript-7.c: Likewise. From-SVN: r238475
2016-07-12re PR middle-end/71716 (gcc.dg/atomic/c11-atomic-exec-4.c is miscompiled ↵Jakub Jelinek1-7/+13
with -march=corei7) PR middle-end/71716 * gimple-fold.c (optimize_atomic_compare_exchange_p): Return false for SCALAR_FLOAT_TYPE_P type of expected var, or if TYPE_PRECISION is different from mode's bitsize. Small cleanup. From-SVN: r238239
2016-06-28re PR middle-end/66867 (Suboptimal code generation for atomic_compare_exchange)Jakub Jelinek1-0/+127
PR middle-end/66867 * builtins.c (expand_ifn_atomic_compare_exchange_into_call, expand_ifn_atomic_compare_exchange): New functions. * internal-fn.c (expand_ATOMIC_COMPARE_EXCHANGE): New function. * tree.h (build_call_expr_internal_loc): Rename to ... (build_call_expr_internal_loc_array): ... this. Fix up type of last argument. * internal-fn.def (ATOMIC_COMPARE_EXCHANGE): New internal fn. * predict.c (expr_expected_value_1): Handle IMAGPART_EXPR of ATOMIC_COMPARE_EXCHANGE result. * builtins.h (expand_ifn_atomic_compare_exchange): New prototype. * gimple-fold.h (optimize_atomic_compare_exchange_p, fold_builtin_atomic_compare_exchange): New prototypes. * gimple-fold.c (optimize_atomic_compare_exchange_p, fold_builtin_atomic_compare_exchange): New functions.. * tree-ssa.c (execute_update_addresses_taken): If optimize_atomic_compare_exchange_p, ignore &var in 2nd argument of call when finding addressable vars, and if such var becomes non-addressable, call fold_builtin_atomic_compare_exchange. From-SVN: r237814
2016-06-16Introduce fortran loop preheaderMartin Liska1-0/+8
* predict.def: Add fortran loop preheader predictor. * gimple-fold.c (gimple_fold_stmt_to_constant_1): Properly fold IFN_BUILTIN_EXPECT with a known constant argument. * trans-stmt.c (gfc_trans_simple_do): Predict the edge. * gfortran.dg/predict-1.f90: New test. From-SVN: r237533
2016-06-10gimple-fold.c (gimple_fold_builtin_memory_op): Make sure to fold the RHS to ↵Richard Biener1-8/+14
a constant if possible. 2016-06-10 Richard Biener <rguenther@suse.de> * gimple-fold.c (gimple_fold_builtin_memory_op): Make sure to fold the RHS to a constant if possible. From-SVN: r237301
2016-05-27re PR middle-end/71308 (ICE (segfault) in in gimple_fold_call ↵Marek Polacek1-1/+2
gimple-fold.c:3060) PR middle-end/71308 * gimple-fold.c (gimple_fold_call): Check that LHS is not null. * g++.dg/torture/pr71308.C: New test. From-SVN: r236815
2016-05-24tree-cfg.h (should_remove_lhs_p): New predicate.Marek Polacek1-5/+3
* tree-cfg.h (should_remove_lhs_p): New predicate. * cgraph.c (cgraph_edge::redirect_call_stmt_to_callee): Use it. * gimplify.c (gimplify_modify_expr): Likewise. * tree-cfg.c (verify_gimple_call): Likewise. * tree-cfgcleanup.c (fixup_noreturn_call): Likewise. * gimple-fold.c: Include "tree-cfg.h". (gimple_fold_call): Use should_remove_lhs_p. From-SVN: r236637
2016-05-24re PR middle-end/70434 (adding an extraneous cast to vector type results in ↵Richard Biener1-0/+38
inferior code) 2016-05-24 Richard Biener <rguenther@suse.de> PR middle-end/70434 PR c/69504 c-family/ * c-common.h (convert_vector_to_pointer_for_subscript): Rename to ... (convert_vector_to_array_for_subscript): ... this. * c-common.c (convert_vector_to_pointer_for_subscript): Use a VIEW_CONVERT_EXPR to an array type. Rename to ... (convert_vector_to_array_for_subscript): ... this. cp/ * expr.c (mark_exp_read): Handle VIEW_CONVERT_EXPR. * constexpr.c (cxx_eval_array_reference): Handle indexed vectors. * typeck.c (cp_build_array_ref): Adjust. c/ * c-typeck.c (build_array_ref): Do not complain about indexing non-lvalue vectors. Adjust for function name change. * tree-ssa.c (non_rewritable_mem_ref_base): Make sure to mark bases which are accessed with non-invariant indices. * gimple-fold.c (maybe_canonicalize_mem_ref_addr): Re-write constant index ARRAY_REFs of vectors into BIT_FIELD_REFs. * c-c++-common/vector-subscript-4.c: New testcase. * c-c++-common/vector-subscript-5.c: Likewise. From-SVN: r236630
2016-05-20re PR c++/71210 (internal compiler error: in assign_temp, at function.c:961)Jakub Jelinek1-2/+17
PR c++/71210 * gimple-fold.c (gimple_fold_call): Do not remove lhs of noreturn calls if the LHS is variable length or has addressable type. If targets[0]->decl is a noreturn call with void return type and zero arguments, adjust fntype and remove lhs in that case. * g++.dg/opt/pr71210-1.C: New test. * g++.dg/opt/pr71210-2.C: New test. From-SVN: r236506
2016-05-03gimplify.h (get_initialized_tmp_var): Add allow_ssa parameter default true.Richard Biener1-1/+1
2016-05-03 Richard Biener <rguenther@suse.de> * gimplify.h (get_initialized_tmp_var): Add allow_ssa parameter default true. (gimplify_arg): Likewise. * gimplify.c (gimplify_expr): Add overload with allow_ssa parameter, re-writing the result to a decl if required. (internal_get_tmp_var): Add allow_ssa parameter and override into_ssa with it. (get_formal_tmp_var): Adjust. (get_initialized_tmp_var): Add allow_ssa parameter. (gimplify_arg): Add allow_ssa parameter and avoid generating SSA names for the result false. (gimplify_call_expr): If the call may return twice do not gimplify parameters into SSA. (prepare_gimple_addressable): Do not allow an SSA name as temporary. (gimplify_modify_expr): Adjust assert. For noreturn calls with a SSA name LHS adjust its def. (gimplify_save_expr): Do not allow an SSA name as save-expr result. (gimplify_one_sizepos): Do not allow an SSA name as a sizepos. (gimplify_body): Init GIMPLE SSA data structures and gimplify into-SSA. (gimplify_scan_omp_clauses): Make sure OMP_CLAUSE_SIZE is not an SSA name. Likewise for OMP_CLAUSE_REDUCTION operands. (gimplify_omp_for): Likewise for OMP_CLAUSE_DECL. Likewise for OMP_FOR_COND, OMP_FOR_INCR and OMP_CLAUSE_LINEAR_STEP. (optimize_target_teams): Do not allow SSA names for clause operands. (gimplify_expr): Likewise for where we mark the result addressable. * passes.def (pass_init_datastructures): Remove. * tree-into-ssa.c (mark_def_sites): Ignore existing SSA names. (rewrite_stmt): Likewise. * tree-inline.c (initialize_cfun): Properly transfer SSA state. (replace_locals_op): Replace SSA names. (copy_gimple_seq_and_replace_locals): Init src_cfun. * gimple-low.c (lower_builtin_setjmp): Deal with SSA. * cgraph.c (release_function_body): Free CFG annotations only when we have a CFG. Simplify. * gimple-fold.c (gimplify_and_update_call_from_tree): Use force_gimple_operand instead of get_initialized_tmp_var. * tree-pass.h (make_pass_init_datastructures): Remove. * tree-ssa.c (execute_init_datastructures): Remove. (pass_data_init_datastructures): Likewise. (class pass_init_datastructures): Likewise. (make_pass_init_datastructures): Likewise. * omp-low.c (create_omp_child_function): Init SSA data structures. (grid_expand_target_grid_body): Likewise. * tree-cfg.c (move_block_to_fn): Double-check the DEF is an SSA name before adding it to names_to_release. (remove_bb): Always release SSA defs. * tree-ssa-ccp.c (get_default_value): Check SSA_NAME_VAR before dereferencing it. * cgraphunit.c (init_lowered_empty_function): Always int SSA data structures. * tree-ssanames.c (release_defs): Remove assert that we are in SSA form. * trans-mem.c (diagnose_tm_1): Handle SSA name function. c-family/ * cilk.c (cilk_gimplify_call_params_in_spawned_fn): Do not allow call args to gimplify to SSA names. * gcc.dg/pr30172-1.c: Adjust. * gcc.dg/pr63743.c: Likewise. * gcc.dg/tm/pr51696.c: Likewise. * c-c++-common/tm/safe-1.c: Likewise. * gcc.dg/tree-prof/val-prof-3.c: Likewise. * gcc.dg/plugin/self-assign-test-1.c: XFAIL case that needs CSE. * g++.dg/plugin/self-assign-test-1.C: Likewise. * g++.dg/plugin/self-assign-test-2.C: Likewise. From-SVN: r235817
2016-05-02Move "X +- C1 CMP C2 to X CMP C2 -+ C1" to match.pdMarc Glisse1-0/+3
2016-05-02 Marc Glisse <marc.glisse@inria.fr> gcc/ * flag-types.h (enum warn_strict_overflow_code): Move ... * coretypes.h: ... here. * fold-const.h (fold_overflow_warning): Declare. * fold-const.c (fold_overflow_warning): Make non-static. (fold_comparison): Move the transformation of X +- C1 CMP C2 into X CMP C2 -+ C1 ... * match.pd: ... here. * gimple-fold.c (fold_stmt_1): Protect with fold_defer_overflow_warnings. gcc/testsuite/ * gcc.dg/tree-ssa/20040305-1.c: Adjust. From-SVN: r235760
2016-05-02Support << and >> for offset_int and widest_intRichard Sandiford1-2/+1
Following on from the comparison patch, I think it makes sense to support << and >> for offset_int (int128_t) and widest_int (intNNN_t), with >> being arithmetic shift. It doesn't make sense to use logical right shift on a potentially negative offset_int, since the precision of 128 bits has no meaning on the target. Tested on x86_64-linux-gnu and aarch64-linux-gnu. gcc/ * wide-int.h: Update offset_int and widest_int documentation. (WI_SIGNED_SHIFT_RESULT): New macro. (wi::binary_shift): Define signed_shift_result_type for shifts on offset_int- and widest_int-like types. (generic_wide_int): Support <<= and >>= if << and >> are supported. * tree.h (int_bit_position): Use shift operators instead of wi:: shifts. * alias.c (adjust_offset_for_component_ref): Likewise. * expr.c (get_inner_reference): Likewise. * fold-const.c (fold_comparison): Likewise. * gimple-fold.c (fold_nonarray_ctor_reference): Likewise. * gimple-ssa-strength-reduction.c (restructure_reference): Likewise. * tree-dfa.c (get_ref_base_and_extent): Likewise. * tree-ssa-alias.c (indirect_ref_may_alias_decl_p): Likewise. (stmt_kills_ref_p): Likewise. * tree-ssa-ccp.c (bit_value_binop_1): Likewise. * tree-ssa-math-opts.c (find_bswap_or_nop_load): Likewise. * tree-ssa-sccvn.c (copy_reference_ops_from_ref): Likewise. (ao_ref_init_from_vn_reference): Likewise. gcc/cp/ * init.c (build_new_1): Use shift operators instead of wi:: shifts. From-SVN: r235720