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2018-09-14builtins.c (unterminated_array): Handle ARRAY_REF.Martin Sebor1-3/+11
* builtins.c (unterminated_array): Handle ARRAY_REF. (expand_builtin_stpcpy_1): Detect unterminated char arrays. * builtins.h (unterminated_array): Declare extern. * gimple-fold.c (gimple_fold_builtin_stpcpy): Detect unterminated arrays. (gimple_fold_builtin_sprintf): Propagate NO_WARNING to transformed calls. * gcc.dg/warn-stpcpy-no-nul.c: New test. From-SVN: r264328
2018-09-14builtins.c (unterminated_array): New.Martin Sebor1-4/+41
* builtins.c (unterminated_array): New. (expand_builtin_strcpy): Adjust. (expand_builtin_strcpy_args): Detect unterminated arrays. * gimple-fold.c (get_maxval_strlen): Add argument. Detect unterminated arrays. * gimple-fold.h (get_maxval_strlen): Add argument. (gimple_fold_builtin_strcpy): Detec unterminated arrays. * gimple-fold.c (get_range_strlen): Add argument. (get_maxval_strlen): Adjust. * gimple-fold.h (get_range_strlen): Add argument. * gcc.dg/warn-strcpy-no-nul.c: New test. Co-Authored-By: Jeff Law <law@redhat.com> From-SVN: r264327
2018-09-13builtins.h (c_srlen): Add argument.Martin Sebor1-8/+58
* builtins.h (c_srlen): Add argument. * builtins.c (warn_string_no_nul): New function. (c_strlen): Add argument and use it. Update recursive calls. Pass DECL argument to string_constant to get info on non terminated strings. Update *NONSTR as needed. (fold_builtin_strlen): Add argument to calls to c_strlen. Warn for unterminated arrays. (warn_string_no_null): Add prototype. * expr.c (string_constant): Update arguments. Update recursive calls appropriately. Detect missing NUL terminator and outermost declaration its missing in. Improve checks for arrays with nonzero lower bound or elements that are not a single byte. Simplify offset computation. Simplify checks for non-NUL terminated strings. * gimple-fold.c (get_range_strlen): Add argument to c_strlen call. * gimple-ssa-sprintf.c (get_string_length): Remove unnecessary code. * gcc.dg/warn-strlen-no-nul.c: New test. Co-Authored-By: Bernd Edlinger <bernd.edlinger@hotmail.de> Co-Authored-By: Jeff Law <law@redhat.com> From-SVN: r264302
2018-09-13builtins.c (c_strlen): Handle not zero terminated STRING_CSTs correctly.Bernd Edlinger1-11/+11
* builtins.c (c_strlen): Handle not zero terminated STRING_CSTs correctly. * fold-const.c (c_getstr): Fix function comment. Remove unused third argument. Fix range checks. * fold-const.h (c_getstr): Adjust protoype. * gimple-fold.c (gimple_fold_builtin_memory_op): Avoid folding when string is constant but contains no NUL byte. From-SVN: r264301
2018-08-29re PR middle-end/87053 (wrong code with c_strlen)Bernd Edlinger1-3/+8
gcc: 2018-08-22 Bernd Edlinger <bernd.edlinger@hotmail.de> PR middle-end/87053 * builtins.c (c_strlen): Improve range checks. testsuite: 2018-08-22 Bernd Edlinger <bernd.edlinger@hotmail.de> PR middle-end/87053 * gcc.c-torture/execute/pr87053.c: New test. From-SVN: r263968
2018-08-29re PR middle-end/86714 (tree-ssa-forwprop.c confused by too long initializer)Martin Sebor1-1/+1
PR tree-optimization/86714 PR tree-optimization/86711 * builtins.c (c_strlen): Add arguments to call to string_constant. * expr.c (string_constant): Add argument. Detect missing nul terminator and outermost declaration it's missing in. * expr.h (string_constant): Add argument. * fold-const.c (read_from_constant_string): Add arguments to call to string_constant. (c_getstr): Likewise. * tree-ssa-forwprop.c (simplify_builtin_call): Likewise. to string_constant. * tree-ssa-strlen.c (get_stridx): Likewise. PR tree-optimization/86714 PR tree-optimization/86711 * gcc.c-torture/execute/memchr-1.c: New test. * gcc.c-torture/execute/pr86714.c: New test. * gcc.c-torture/execute/widechar-3.c: New test. * gcc.dg/strlenopt-58.c: New test. Co-Authored-By: Bernd Edlinger <bernd.edlinger@hotmail.de> Co-Authored-By: Jeff Law <law@redhat.com> From-SVN: r263963
2018-08-27PR tree-optimization/87112 - ICE in fold_binary_loc on strnlen of mixed ↵Martin Sebor1-1/+4
integer types gcc/ChangeLog: PR tree-optimization/87112 * builtins.c (expand_builtin_strnlen): Convert c_strlen result to the type of the bound argument. gcc/testsuite/ChangeLog: PR tree-optimization/87112 * gcc.dg/pr87112.c: New test. From-SVN: r263900
2018-08-27Come up with fndecl_built_in_p.Martin Liska1-35/+11
2018-08-27 Martin Liska <mliska@suse.cz> * builtins.h (is_builtin_fn): Remove and fndecl_built_in_p. * builtins.c (is_builtin_fn): Likewise. * attribs.c (diag_attr_exclusions): Use new function fndecl_built_in_p and remove check for FUNCTION_DECL if possible. (builtin_mathfn_code): Likewise. (fold_builtin_expect): Likewise. (fold_call_expr): Likewise. (fold_builtin_call_array): Likewise. (fold_call_stmt): Likewise. (set_builtin_user_assembler_name): Likewise. (is_simple_builtin): Likewise. * calls.c (gimple_alloca_call_p): Likewise. (maybe_warn_nonstring_arg): Likewise. * cfgexpand.c (expand_call_stmt): Likewise. * cgraph.c (cgraph_update_edges_for_call_stmt_node): Likewise. (cgraph_edge::verify_corresponds_to_fndecl): Likewise. (cgraph_node::verify_node): Likewise. * cgraphclones.c (build_function_decl_skip_args): Likewise. (cgraph_node::create_clone): Likewise. * config/arm/arm.c (arm_insert_attributes): Likewise. * config/i386/i386.c (ix86_gimple_fold_builtin): Likewise. * dse.c (scan_insn): Likewise. * expr.c (expand_expr_real_1): Likewise. * fold-const.c (operand_equal_p): Likewise. (fold_binary_loc): Likewise. * gimple-fold.c (gimple_fold_stmt_to_constant_1): Likewise. * gimple-low.c (lower_stmt): Likewise. * gimple-pretty-print.c (dump_gimple_call): Likewise. * gimple-ssa-warn-restrict.c (wrestrict_dom_walker::check_call): Likewise. * gimple.c (gimple_build_call_from_tree): Likewise. (gimple_call_builtin_p): Likewise. (gimple_call_combined_fn): Likewise. * gimplify.c (gimplify_call_expr): Likewise. (gimple_boolify): Likewise. (gimplify_modify_expr): Likewise. (gimplify_addr_expr): Likewise. * hsa-gen.c (gen_hsa_insns_for_call): Likewise. * ipa-cp.c (determine_versionability): Likewise. * ipa-fnsummary.c (compute_fn_summary): Likewise. * ipa-param-manipulation.c (ipa_modify_formal_parameters): Likewise. * ipa-split.c (visit_bb): Likewise. (split_function): Likewise. * ipa-visibility.c (cgraph_externally_visible_p): Likewise. * lto-cgraph.c (input_node): Likewise. * lto-streamer-out.c (write_symbol): Likewise. * omp-low.c (setjmp_or_longjmp_p): Likewise. (lower_omp_1): Likewise. * predict.c (strip_predict_hints): Likewise. * print-tree.c (print_node): Likewise. * symtab.c (symtab_node::output_to_lto_symbol_table_p): Likewise. * trans-mem.c (is_tm_irrevocable): Likewise. (is_tm_load): Likewise. (is_tm_simple_load): Likewise. (is_tm_store): Likewise. (is_tm_simple_store): Likewise. (is_tm_abort): Likewise. (tm_region_init_1): Likewise. * tree-call-cdce.c (gen_shrink_wrap_conditions): Likewise. * tree-cfg.c (verify_gimple_call): Likewise. (move_stmt_r): Likewise. (stmt_can_terminate_bb_p): Likewise. * tree-eh.c (lower_eh_constructs_2): Likewise. * tree-if-conv.c (if_convertible_stmt_p): Likewise. * tree-inline.c (remap_gimple_stmt): Likewise. (copy_bb): Likewise. (estimate_num_insns): Likewise. (fold_marked_statements): Likewise. * tree-sra.c (scan_function): Likewise. * tree-ssa-ccp.c (surely_varying_stmt_p): Likewise. (optimize_stack_restore): Likewise. (pass_fold_builtins::execute): Likewise. * tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Likewise. (mark_all_reaching_defs_necessary_1): Likewise. * tree-ssa-dom.c (dom_opt_dom_walker::optimize_stmt): Likewise. * tree-ssa-forwprop.c (simplify_builtin_call): Likewise. (pass_forwprop::execute): Likewise. * tree-ssa-loop-im.c (stmt_cost): Likewise. * tree-ssa-math-opts.c (pass_cse_reciprocals::execute): Likewise. * tree-ssa-sccvn.c (fully_constant_vn_reference_p): Likewise. * tree-ssa-strlen.c (get_string_length): Likewise. * tree-ssa-structalias.c (handle_lhs_call): Likewise. (find_func_aliases_for_call): Likewise. * tree-ssa-ter.c (find_replaceable_in_bb): Likewise. * tree-stdarg.c (optimize_va_list_gpr_fpr_size): Likewise. * tree-tailcall.c (find_tail_calls): Likewise. * tree.c (need_assembler_name_p): Likewise. (free_lang_data_in_decl): Likewise. (get_call_combined_fn): Likewise. * ubsan.c (is_ubsan_builtin_p): Likewise. * varasm.c (incorporeal_function_p): Likewise. * tree.h (DECL_BUILT_IN): Remove and replace with fndecl_built_in_p. (DECL_BUILT_IN_P): Transfort to fndecl_built_in_p. (fndecl_built_in_p): New. 2018-08-27 Martin Liska <mliska@suse.cz> * gcc-interface/decl.c (update_profile): Use new function fndecl_built_in_p and remove check for FUNCTION_DECL if possible. * gcc-interface/gigi.h (call_is_atomic_load): Likewise. * gcc-interface/utils.c (gnat_pushdecl): Likewise. 2018-08-27 Martin Liska <mliska@suse.cz> * c-common.c (check_function_restrict): Use new function fndecl_built_in_p and remove check for FUNCTION_DECL if possible. (check_builtin_function_arguments): Likewise. (reject_gcc_builtin): Likewise. * c-warn.c (sizeof_pointer_memaccess_warning): Likewise. 2018-08-27 Martin Liska <mliska@suse.cz> * c-decl.c (locate_old_decl): Use new function fndecl_built_in_p and remove check for FUNCTION_DECL if possible. (diagnose_mismatched_decls): Likewise. (merge_decls): Likewise. (warn_if_shadowing): Likewise. (pushdecl): Likewise. (implicitly_declare): Likewise. * c-parser.c (c_parser_postfix_expression_after_primary): Likewise. * c-tree.h (C_DECL_ISNT_PROTOTYPE): Likewise. * c-typeck.c (build_function_call_vec): Likewise. (convert_arguments): Likewise. 2018-08-27 Martin Liska <mliska@suse.cz> * call.c (build_call_a): Use new function fndecl_built_in_p and remove check for FUNCTION_DECL if possible. (build_cxx_call): Likewise. * constexpr.c (constexpr_fn_retval): Likewise. (cxx_eval_builtin_function_call): Likewise. (cxx_eval_call_expression): Likewise. (potential_constant_expression_1): Likewise. * cp-gimplify.c (cp_gimplify_expr): Likewise. (cp_fold): Likewise. * decl.c (decls_match): Likewise. (validate_constexpr_redeclaration): Likewise. (duplicate_decls): Likewise. (make_rtl_for_nonlocal_decl): Likewise. * name-lookup.c (consider_binding_level): Likewise. (cp_emit_debug_info_for_using): Likewise. * semantics.c (finish_call_expr): Likewise. * tree.c (builtin_valid_in_constant_expr_p): Likewise. 2018-08-27 Martin Liska <mliska@suse.cz> * go-gcc.cc (Gcc_backend::call_expression): Use new function fndecl_built_in_p and remove check for FUNCTION_DECL if possible. 2018-08-27 Martin Liska <mliska@suse.cz> * lto-lang.c (handle_const_attribute): Use new function fndecl_built_in_p and remove check for FUNCTION_DECL if possible. * lto-symtab.c (lto_symtab_merge_p): Likewise. (lto_symtab_merge_decls_1): Likewise. (lto_symtab_merge_symbols): Likewise. * lto.c (lto_maybe_register_decl): Likewise. (read_cgraph_and_symbols): Likewise. From-SVN: r263880
2018-08-25re PR tree-optimization/87059 (internal compiler error: in set_value_range, ↵Martin Sebor1-1/+4
at tree-vrp.c:289) PR tree-optimization/87059 * builtins.c (expand_builtin_strncmp): Convert MIN_EXPR operand to the same type as the other. * fold-const.c (fold_binary_loc): Assert expectation. From-SVN: r263855
2018-08-16builtins.c (c_strlen): Add new parameter eltsize.Bernd Edlinger1-28/+35
* builtins.c (c_strlen): Add new parameter eltsize. Use it for determining how to count the elements. * builtins.h (c_strlen): Adjust prototype. * expr.c (string_constant): Add new parameter mem_size. Set *mem_size appropriately. * expr.h (string_constant): Adjust protoype. * gimple-fold.c (get_range_strlen): Add new parameter eltsize. * gimple-fold.h (get_range_strlen): Adjust prototype. * gimple-ssa-sprintf.c (get_string_length): Add new parameter eltsize. (format_string): Call get_string_length with eltsize. From-SVN: r263607
2018-08-15Do not expand the call to memcmp at all when overflow is detected.Qing Zhao1-1/+6
From-SVN: r263563
2018-08-10Introduce __builtin_expect_with_probability (PR target/83610).Martin Liska1-14/+51
2018-08-10 Martin Liska <mliska@suse.cz> PR target/83610 * builtin-types.def (BT_FN_LONG_LONG_LONG_DOUBLE): Add new function type. * builtins.c (expand_builtin_expect_with_probability): New function. (expand_builtin_expect_with_probability): New function. (build_builtin_expect_predicate): Add new argumnet probability for BUILT_IN_EXPECT_WITH_PROBABILITY. (fold_builtin_expect): (fold_builtin_2): (fold_builtin_3): * builtins.def (BUILT_IN_EXPECT_WITH_PROBABILITY): * builtins.h (fold_builtin_expect): Set new argument. * doc/extend.texi: Document __builtin_expect_with_probability. * doc/invoke.texi: Likewise. * gimple-fold.c (gimple_fold_call): Pass new argument. * ipa-fnsummary.c (find_foldable_builtin_expect): Handle also BUILT_IN_EXPECT_WITH_PROBABILITY. * predict.c (get_predictor_value): New function. (expr_expected_value): Add new argument probability. Assume that predictor and probability are always non-null. (expr_expected_value_1): Likewise. For __builtin_expect and __builtin_expect_with_probability set probability. Handle combination in binary expressions. (tree_predict_by_opcode): Simplify code by simply calling get_predictor_value. (pass_strip_predict_hints::execute): Add handling of BUILT_IN_EXPECT_WITH_PROBABILITY. * predict.def (PRED_BUILTIN_EXPECT_WITH_PROBABILITY): Add new predictor. * tree.h (DECL_BUILT_IN_P): New function. 2018-08-10 Martin Liska <mliska@suse.cz> PR target/83610 * gcc.dg/predict-17.c: New test. * gcc.dg/predict-18.c: New test. * gcc.dg/predict-19.c: New test. From-SVN: r263466
2018-07-31Add __builtin_speculation_safe_valueRichard Earnshaw1-0/+60
This patch defines a new intrinsic function __builtin_speculation_safe_value. A generic default implementation is defined which will attempt to use the backend pattern "speculation_safe_barrier". If this pattern is not defined, or if it is not available, then the compiler will emit a warning, but compilation will continue. Note that the test spec-barrier-1.c will currently fail on all targets. This is deliberate, the failure will go away when appropriate action is taken for each target backend. gcc: * builtin-types.def (BT_FN_PTR_PTR_VAR): New function type. (BT_FN_I1_I1_VAR, BT_FN_I2_I2_VAR, BT_FN_I4_I4_VAR): Likewise. (BT_FN_I8_I8_VAR, BT_FN_I16_I16_VAR): Likewise. * builtin-attrs.def (ATTR_NOVOPS_NOTHROW_LEAF_LIST): New attribute list. * builtins.def (BUILT_IN_SPECULATION_SAFE_VALUE_N): New builtin. (BUILT_IN_SPECULATION_SAFE_VALUE_PTR): New internal builtin. (BUILT_IN_SPECULATION_SAFE_VALUE_1): Likewise. (BUILT_IN_SPECULATION_SAFE_VALUE_2): Likewise. (BUILT_IN_SPECULATION_SAFE_VALUE_4): Likewise. (BUILT_IN_SPECULATION_SAFE_VALUE_8): Likewise. (BUILT_IN_SPECULATION_SAFE_VALUE_16): Likewise. * builtins.c (expand_speculation_safe_value): New function. (expand_builtin): Call it. * doc/cpp.texi: Document predefine __HAVE_SPECULATION_SAFE_VALUE. * doc/extend.texi: Document __builtin_speculation_safe_value. * doc/md.texi: Document "speculation_barrier" pattern. * doc/tm.texi.in: Pull in TARGET_SPECULATION_SAFE_VALUE and TARGET_HAVE_SPECULATION_SAFE_VALUE. * doc/tm.texi: Regenerated. * target.def (have_speculation_safe_value, speculation_safe_value): New hooks. * targhooks.c (default_have_speculation_safe_value): New function. (default_speculation_safe_value): New function. * targhooks.h (default_have_speculation_safe_value): Add prototype. (default_speculation_safe_value): Add prototype. c-family: * c-common.c (speculation_safe_resolve_call): New function. (speculation_safe_resolve_params): New function. (speculation_safe_resolve_return): New function. (resolve_overloaded_builtin): Handle __builtin_speculation_safe_value. * c-cppbuiltin.c (c_cpp_builtins): Add pre-define for __HAVE_SPECULATION_SAFE_VALUE. testsuite: * c-c++-common/spec-barrier-1.c: New test. * c-c++-common/spec-barrier-2.c: New test. * gcc.dg/spec-barrier-3.c: New test. From-SVN: r263168
2018-07-27Disable strcmp/strncmp/memcmp inlining when optimization Qing Zhao1-0/+5
level is lower than 2 or Os From-SVN: r263028
2018-07-24PR tree-optimization/86622 - incorrect strlen of array of array plus ↵Martin Sebor1-22/+36
variable offset PR tree-optimization/86622 - incorrect strlen of array of array plus variable offset PR tree-optimization/86532 - Wrong code due to a wrong strlen folding starting with r262522 gcc/ChangeLog: PR tree-optimization/86622 PR tree-optimization/86532 * builtins.h (string_length): Declare. * builtins.c (c_strlen): Correct handling of non-constant offsets. (check_access): Be prepared for non-constant length ranges. (string_length): Make extern. * expr.c (string_constant): Only handle the minor non-constant array index. Use string_constant to compute the length of a generic string constant. gcc/testsuite/ChangeLog: PR tree-optimization/86622 PR tree-optimization/86532 * gcc.c-torture/execute/strlen-2.c: New test. * gcc.c-torture/execute/strlen-3.c: New test. * gcc.c-torture/execute/strlen-4.c: New test. From-SVN: r262958
2018-07-20PR middle-end/82063 - issues with arguments enabled by -WallMartin Sebor1-7/+14
gcc/ada/ChangeLog: PR middle-end/82063 * gcc-interface/misc.c (gnat_handle_option): Change function argument to HOST_WIDE_INT. gcc/brig/ChangeLog: PR middle-end/82063 * brig/brig-lang.c (brig_langhook_handle_option): Change function argument to HOST_WIDE_INT. gcc/c-family/ChangeLog: PR middle-end/82063 * c-common.h (c_common_handle_option): Change function argument to HOST_WIDE_INT. * c-opts.c (c_common_init_options): Same. (c_common_handle_option): Same. Remove special handling of OPT_Walloca_larger_than_ and OPT_Wvla_larger_than_. * c.opt (-Walloc-size-larger-than, -Walloca-larger-than): Change options to take a HOST_WIDE_INT argument and accept a byte-size suffix. Initialize. (-Wvla-larger-than): Same. (-Wno-alloc-size-larger-than, -Wno-alloca-larger-than): New. (-Wno-vla-larger-than): Same. gcc/fortran/ChangeLog: PR middle-end/82063 * gfortran.h (gfc_handle_option): Change function argument to HOST_WIDE_INT. * options.c (gfc_handle_option): Same. gcc/go/ChangeLog: PR middle-end/82063 * go-lang.c (go_langhook_handle_option): Change function argument to HOST_WIDE_INT. gcc/lto/ChangeLog: PR middle-end/82063 * lto-lang.c (lto_handle_option): Change function argument to HOST_WIDE_INT. gcc/testsuite/ChangeLog: PR middle-end/82063 * gcc/testsuite/c-c++-common/pr68657-1.c: Adjust. * gcc/testsuite/c-c++-common/pr68657-2.c: Same. * gcc/testsuite/c-c++-common/pr68657-3.c: Same. * gcc.dg/Walloc-size-larger-than-16.c: Same. * gcc.dg/Walloca-larger-than.c: New test. * gcc.dg/Walloca-larger-than-2.c: New test. * gcc.dg/Wframe-larger-than-2.c: New test. * gcc.dg/Wlarger-than3.c: New test. * gcc.dg/Wvla-larger-than-3.c: New test. * gcc.dg/pr42611.c: Adjust. * gnat.dg/frame_overflow.adb: Same. gcc/ChangeLog: PR middle-end/82063 * builtins.c (expand_builtin_alloca): Adjust. * calls.c (alloc_max_size): Simplify. * cgraphunit.c (cgraph_node::expand): Adjust. * common.opt (larger_than_size, warn_frame_larger_than): Remove variables. (frame_larger_than_size): Same. (-Wframe-larger-than, -Wlarger-than, -Wstack-usage): Change options to take a HOST_WIDE_INT argument and accept a byte-size suffix. Initialize. * doc/invoke.texi (GCC Command Options): Document option arguments. Explain byte-size arguments and suffixes. (-Wvla-larger-than, -Wno-alloc-size-larger-than): Update. (-Wno-alloca-larger-than, -Wno-vla-larger-than): Same. (-Wframe-larger-than, -Wlarger-than, -Wstack-usage): Same. * doc/options.texi (UInteger): Expand. (Host_Wide_Int, ByteSize): Document new properties. * final.c (final_start_function_1): Include sizes in an error message. * function.c (frame_offset_overflow): Same. * gimple-ssa-warn-alloca.c (pass_walloca::gate): Adjust. (alloca_call_type_by_arg): Change function argument to HOST_WIDE_INT. Diagnose unbounded alloca calls only for limits of less than PTRDIFF_MAX. (alloca_call_type): Adjust. Diagnose possibly out-of-bounds alloca calls and VLA size only for limits of less than PTRDIFF_MAX. Same for alloca(0). (pass_walloca::execute): Adjust. Diagnose alloca calls in loops only for limits of less than PTRDIFF_MAX. * langhooks-def.h (lhd_handle_option): Change function argument to HOST_WIDE_INT. * langhooks.c (lhd_handle_option): Same. * langhooks.h (handle_option): Same. * opt-functions.awk (switch_bit_fields): Handle Host_Wide_Int and ByteSize flags. (var_type, var_type_struct): Same. (var_set): Handle ByteSize flag. * optc-gen.awk: Add comments to output to ease debugging. Make use of HOST_WIDE_INT where appropriate. * opts-gen-save.awk: Use %lx to format unsigned long. * opth-gen.awk: Change function argument to HOST_WIDE_INT. * opts-common.c (integral_argument): Return HOST_WIDE_INT and add arguments. Parse bytes-size suffixes. (enum_arg_to_value): Change function argument to HOST_WIDE_INT. (enum_value_to_arg): Same. (decode_cmdline_option): Handle cl_host_wide_int. Adjust. (handle_option): Adjust. (generate_option): Change function argument to HOST_WIDE_INT. (cmdline_handle_error): Adjust. (read_cmdline_option): Change function argument to HOST_WIDE_INT. (set_option): Change function argument to HOST_WIDE_INT. (option_enabled): Handle cl_host_wide_int. (get_option_state): Handle CLVC_SIZE. (control_warning_option): Same. * opts.c (common_handle_option): Change function argument to HOST_WIDE_INT. Remove handling of OPT_Walloca_larger_than_ and OPT_Wvla_larger_than_. * opts.h (enum cl_var_type): Add an enumerator. * stor-layout.c (layout_decl): Print a more meaningful warning. * toplev.c (output_stack_usage): Adjust. From-SVN: r262910
2018-07-20Give up the inlining expansion for strcmp/strncmp/memcmp on a target where ↵Qing Zhao1-13/+23
the... Give up the inlining expansion for strcmp/strncmp/memcmp on a target where the type of the call has same or narrower presicion than unsigned char. Change char to unsigned char for strcmp/strncmp when expand them to a sequence of byte comparisons. Due to C standard section 7.24.4: The sign of a nonzero value returned by the comparison functions memcmp, strcmp, and strncmp is determined by the sign of the difference between the values of the first pair of characters (both interpreted as unsigned char) that differ in the objects being compared. bootstraped and tested on both X86 and Aarch64. no regression. From-SVN: r262907
2018-07-16re PR tree-optimization/86526 (ICE in builtin_memcpy_read_str, at ↵Jakub Jelinek1-36/+33
builtins.c:3017) PR tree-optimization/86526 * builtins.c (expand_builtin_memcmp): Formatting fixes. (inline_expand_builtin_string_cmp): Likewise. (inline_string_cmp): Likewise. Use c_readstr instead of builtin_memcpy_read_str. Add unit_mode temporary. * gcc.c-torture/compile/pr86526.c: New test. From-SVN: r262750
2018-07-16re PR middle-end/86528 (strlen of constant string malfunction -- had to back ↵Bernd Edlinger1-0/+4
out fix for PR middle-end/77357) gcc: 2018-07-16 Bernd Edlinger <bernd.edlinger@hotmail.de> PR middle-end/86528 * builtins.c (check_access): Bail out if range[0] is no INTEGER_CST. * expr.c (string_constant): Fix the element size of ARRAY_TYPE. testsuite: 2018-07-16 Bernd Edlinger <bernd.edlinger@hotmail.de> PR middle-end/86528 * gcc.c-torture/execute/pr86528.c: New test. * gcc.dg/Wrestrict-10.c (test_arr_strcat_2): Fix typo. From-SVN: r262742
2018-07-133nd Patch for PR78009Qing Zhao1-17/+176
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78809 Inline strcmp with small constant strings The design doc for PR78809 is at: https://www.mail-archive.com/gcc@gcc.gnu.org/msg83822.html this patch is for the third part of change of PR78809. C. for strcmp (s1, s2), strncmp (s1, s2, n), and memcmp (s1, s2, n) if the result is NOT used to do simple equality test against zero, one of "s1" or "s2" is a small constant string, n is a constant, and the Min value of the length of the constant string and "n" is smaller than a predefined threshold T, inline the call by a byte-to-byte comparision sequence to avoid calling overhead. adding test case strcmpopt_5.c into gcc.dg for part C of PR78809. adding test case strcmpopt_6.c into gcc.dg to test the following case: When the specified length exceeds one of the arguments of the call to memcmp, the call to memcmp should NOT be inlined. From-SVN: r262636
2018-07-09PR middle-end/77357 - strlen of constant strings not foldedMartin Sebor1-3/+9
gcc/ChangeLog: PR middle-end/77357 PR middle-end/86428 * builtins.c (c_strlen): Avoid out-of-bounds warnings when accessing implicitly initialized array elements. * expr.c (string_constant): Handle string initializers of character arrays within aggregates. * gimple-fold.c (fold_array_ctor_reference): Add argument. Store element offset. As a special case, handle zero size. (fold_nonarray_ctor_reference): Same. (fold_ctor_reference): Add argument. Store subobject offset. * gimple-fold.h (fold_ctor_reference): Add argument. gcc/testsuite/ChangeLog: PR middle-end/77357 * gcc.dg/strlenopt-49.c: New test. * gcc.dg/strlenopt-50.c: New test. * gcc.dg/strlenopt-51.c: New test. * gcc.dg/strlenopt-52.c: New test. From-SVN: r262522
2018-06-18PR tree-optimization/81384 - built-in form of strnlen missingMartin Sebor1-12/+93
gcc/ChangeLog: PR tree-optimization/81384 * builtin-types.def (BT_FN_SIZE_CONST_STRING_SIZE): New. * builtins.c (expand_builtin_strnlen): New function. (expand_builtin): Call it. (fold_builtin_n): Avoid setting TREE_NO_WARNING. * builtins.def (BUILT_IN_STRNLEN): New. * calls.c (maybe_warn_nonstring_arg): Handle BUILT_IN_STRNLEN. Warn for bounds in excess of maximum object size. * tree-ssa-strlen.c (maybe_set_strlen_range): Return tree representing single-value ranges. Handle strnlen. (handle_builtin_strlen): Handle strnlen. (strlen_check_and_optimize_stmt): Same. * doc/extend.texi (Other Builtins): Document strnlen. gcc/testsuite/ChangeLog: PR tree-optimization/81384 * gcc.c-torture/execute/builtins/lib/strnlen.c: New test. * gcc.c-torture/execute/builtins/strnlen-lib.c: New test. * gcc.c-torture/execute/builtins/strnlen.c: New test. * gcc.dg/attr-nonstring-2.c: New test. * gcc.dg/attr-nonstring-3.c: New test. * gcc.dg/attr-nonstring-4.c: New test. * gcc.dg/strlenopt-45.c: New test. * gcc.dg/strlenopt.h (strnlen): Declare. From-SVN: r261705
2018-06-12PR tree-optimization/85259 - Missing -Wstringop-overflow= since r256683Martin Sebor1-2/+21
gcc/ChangeLog: PR tree-optimization/85259 * builtins.c (compute_objsize): Handle constant offsets. * gimple-ssa-warn-restrict.c (maybe_diag_offset_bounds): Return true iff a warning has been issued. * gimple.h (gimple_nonartificial_location): New function. * tree-ssa-strlen.c (maybe_diag_stxncpy_trunc): Call gimple_nonartificial_location and handle -Wno-system-headers. (handle_builtin_stxncpy): Same. gcc/testsuite/ChangeLog: PR tree-optimization/85259 * gcc.dg/Wstringop-overflow-5.c: New test. * gcc.dg/Wstringop-overflow-6.c: New test. From-SVN: r261518
2018-06-08Remove MPXMartin Liska1-234/+2
2018-06-08 Martin Liska <mliska@suse.cz> * MAINTAINERS: Remove MPX-related entries. * Makefile.def: Remove libmpx support. * Makefile.in: Likewise. * configure: Remove removed files. * configure.ac: Likewise. * libmpx/ChangeLog: Remove. * libmpx/Makefile.am: Remove. * libmpx/Makefile.in: Remove. * libmpx/acinclude.m4: Remove. * libmpx/aclocal.m4: Remove. * libmpx/config.h.in: Remove. * libmpx/configure: Remove. * libmpx/configure.ac: Remove. * libmpx/configure.tgt: Remove. * libmpx/libmpx.spec.in: Remove. * libmpx/mpxrt/Makefile.am: Remove. * libmpx/mpxrt/Makefile.in: Remove. * libmpx/mpxrt/libmpx.map: Remove. * libmpx/mpxrt/libtool-version: Remove. * libmpx/mpxrt/mpxrt-utils.c: Remove. * libmpx/mpxrt/mpxrt-utils.h: Remove. * libmpx/mpxrt/mpxrt.c: Remove. * libmpx/mpxrt/mpxrt.h: Remove. * libmpx/mpxwrap/Makefile.am: Remove. * libmpx/mpxwrap/Makefile.in: Remove. * libmpx/mpxwrap/libmpxwrappers.map: Remove. * libmpx/mpxwrap/libtool-version: Remove. * libmpx/mpxwrap/mpx_wrappers.c: Remove. 2018-06-08 Martin Liska <mliska@suse.cz> * bootstrap-mpx.mk: Remove. 2018-06-08 Martin Liska <mliska@suse.cz> * Makefile.in: Remove support for MPX (macros, related functions, fields in cgraph_node, ...). * builtin-types.def (BT_BND): Likewise. (BT_FN_BND_CONST_PTR): Likewise. (BT_FN_CONST_PTR_BND): Likewise. (BT_FN_VOID_PTR_BND): Likewise. (BT_FN_BND_CONST_PTR_SIZE): Likewise. (BT_FN_VOID_CONST_PTR_BND_CONST_PTR): Likewise. * builtins.c (expand_builtin_memcpy_with_bounds): Likewise. (expand_builtin_mempcpy_with_bounds): Likewise. (expand_builtin_memset_with_bounds): Likewise. (expand_builtin_memset_args): Likewise. (std_expand_builtin_va_start): Likewise. (expand_builtin): Likewise. (expand_builtin_with_bounds): Likewise. * builtins.def (DEF_BUILTIN_CHKP): Likewise. (DEF_LIB_BUILTIN_CHKP): Likewise. (DEF_EXT_LIB_BUILTIN_CHKP): Likewise. (DEF_CHKP_BUILTIN): Likewise. (BUILT_IN_MEMCPY): Likewise. (BUILT_IN_MEMMOVE): Likewise. (BUILT_IN_MEMPCPY): Likewise. (BUILT_IN_MEMSET): Likewise. (BUILT_IN_STPCPY): Likewise. (BUILT_IN_STRCAT): Likewise. (BUILT_IN_STRCHR): Likewise. (BUILT_IN_STRCPY): Likewise. (BUILT_IN_STRLEN): Likewise. (BUILT_IN_MEMCPY_CHK): Likewise. (BUILT_IN_MEMMOVE_CHK): Likewise. (BUILT_IN_MEMPCPY_CHK): Likewise. (BUILT_IN_MEMSET_CHK): Likewise. (BUILT_IN_STPCPY_CHK): Likewise. (BUILT_IN_STRCAT_CHK): Likewise. (BUILT_IN_STRCPY_CHK): Likewise. * calls.c (store_bounds): Likewise. (emit_call_1): Likewise. (special_function_p): Likewise. (maybe_warn_nonstring_arg): Likewise. (initialize_argument_information): Likewise. (finalize_must_preallocate): Likewise. (compute_argument_addresses): Likewise. (expand_call): Likewise. * cfgexpand.c (expand_call_stmt): Likewise. (expand_return): Likewise. (expand_gimple_stmt_1): Likewise. (pass_expand::execute): Likewise. * cgraph.c (cgraph_edge::redirect_call_stmt_to_callee): Likewise. (cgraph_node::remove): Likewise. (cgraph_node::dump): Likewise. (cgraph_node::verify_node): Likewise. * cgraph.h (chkp_function_instrumented_p): Likewise. (symtab_node::get_alias_target): Likewise. (cgraph_node::can_remove_if_no_direct_calls_and_refs_p): Likewise. (cgraph_local_p): Likewise. * cgraphbuild.c (cgraph_edge::rebuild_edges): Likewise. (cgraph_edge::rebuild_references): Likewise. * cgraphunit.c (varpool_node::finalize_decl): Likewise. (walk_polymorphic_call_targets): Likewise. (cgraph_node::expand_thunk): Likewise. (symbol_table::output_weakrefs): Likewise. * common/config/i386/i386-common.c (OPTION_MASK_ISA2_GENERAL_REGS_ONLY_UNSET): Likewise. (ix86_handle_option): Likewise. * config/i386/constraints.md: Likewise. * config/i386/i386-builtin-types.def (BND): Likewise. (VOID): Likewise. (PVOID): Likewise. (ULONG): Likewise. * config/i386/i386-builtin.def (BDESC_END): Likewise. (BDESC_FIRST): Likewise. (BDESC): Likewise. * config/i386/i386-c.c (ix86_target_macros_internal): Likewise. * config/i386/i386-protos.h (ix86_bnd_prefixed_insn_p): Likewise. * config/i386/i386.c (enum reg_class): Likewise. (ix86_target_string): Likewise. (ix86_option_override_internal): Likewise. (ix86_conditional_register_usage): Likewise. (ix86_valid_target_attribute_inner_p): Likewise. (ix86_set_indirect_branch_type): Likewise. (ix86_set_current_function): Likewise. (ix86_function_arg_regno_p): Likewise. (init_cumulative_args): Likewise. (ix86_function_arg_advance): Likewise. (ix86_function_arg): Likewise. (ix86_pass_by_reference): Likewise. (ix86_function_value_regno_p): Likewise. (ix86_function_value_1): Likewise. (ix86_function_value_bounds): Likewise. (ix86_return_in_memory): Likewise. (ix86_setup_incoming_vararg_bounds): Likewise. (ix86_va_start): Likewise. (indirect_thunk_need_prefix): Likewise. (print_reg): Likewise. (ix86_print_operand): Likewise. (ix86_expand_call): Likewise. (ix86_output_function_return): Likewise. (reg_encoded_number): Likewise. (BDESC_VERIFYS): Likewise. (ix86_init_mpx_builtins): Likewise. (ix86_init_builtins): Likewise. (ix86_emit_cmove): Likewise. (ix86_emit_move_max): Likewise. (ix86_expand_builtin): Likewise. (ix86_builtin_mpx_function): Likewise. (ix86_get_arg_address_for_bt): Likewise. (ix86_load_bounds): Likewise. (ix86_store_bounds): Likewise. (ix86_load_returned_bounds): Likewise. (ix86_store_returned_bounds): Likewise. (ix86_class_likely_spilled_p): Likewise. (ix86_hard_regno_mode_ok): Likewise. (x86_order_regs_for_local_alloc): Likewise. (ix86_mitigate_rop): Likewise. (ix86_bnd_prefixed_insn_p): Likewise. (ix86_mpx_bound_mode): Likewise. (ix86_make_bounds_constant): Likewise. (ix86_initialize_bounds): Likewise. (TARGET_LOAD_BOUNDS_FOR_ARG): Likewise. (TARGET_STORE_BOUNDS_FOR_ARG): Likewise. (TARGET_LOAD_RETURNED_BOUNDS): Likewise. (TARGET_STORE_RETURNED_BOUNDS): Likewise. (TARGET_CHKP_BOUND_MODE): Likewise. (TARGET_BUILTIN_CHKP_FUNCTION): Likewise. (TARGET_CHKP_FUNCTION_VALUE_BOUNDS): Likewise. (TARGET_CHKP_MAKE_BOUNDS_CONSTANT): Likewise. (TARGET_CHKP_INITIALIZE_BOUNDS): Likewise. * config/i386/i386.h (TARGET_MPX): Likewise. (TARGET_MPX_P): Likewise. (VALID_BND_REG_MODE): Likewise. (FIRST_BND_REG): Likewise. (LAST_BND_REG): Likewise. (enum reg_class): Likewise. (BND_REG_P): Likewise. (BND_REGNO_P): Likewise. (BNDmode): Likewise. (ADJUST_INSN_LENGTH): Likewise. * config/i386/i386.md: Likewise. * config/i386/i386.opt: Likewise. * config/i386/linux-common.h (LIBMPX_LIBS): Likewise. (defined): Likewise. (LINK_MPX): Likewise. (MPX_SPEC): Likewise. (LIBMPX_SPEC): Likewise. (LIBMPXWRAPPERS_SPEC): Likewise. (CHKP_SPEC): Likewise. * config/i386/predicates.md: Likewise. * dbxout.c (dbxout_type): Likewise. * doc/extend.texi: Likewise. * doc/invoke.texi: Likewise. * doc/md.texi: Likewise. * doc/tm.texi: Likewise. * doc/tm.texi.in: Likewise. * dwarf2out.c (is_base_type): Likewise. (gen_formal_types_die): Likewise. (gen_subprogram_die): Likewise. (gen_type_die_with_usage): Likewise. (gen_decl_die): Likewise. (dwarf2out_late_global_decl): Likewise. * expr.c (expand_assignment): Likewise. (emit_storent_insn): Likewise. (store_expr_with_bounds): Likewise. (store_expr): Likewise. (expand_expr_real_1): Likewise. * expr.h (store_expr_with_bounds): Likewise. * function.c (use_register_for_decl): Likewise. (struct bounds_parm_data): Likewise. (assign_parms_augmented_arg_list): Likewise. (assign_parm_find_entry_rtl): Likewise. (assign_parm_is_stack_parm): Likewise. (assign_parm_load_bounds): Likewise. (assign_bounds): Likewise. (assign_parms): Likewise. (expand_function_start): Likewise. * gcc.c (CHKP_SPEC): Likewise. * gimple-fold.c (gimple_fold_builtin_memory_op): Likewise. * gimple-ssa-warn-restrict.c (builtin_access::builtin_access): Likewise. (wrestrict_dom_walker::check_call): Likewise. * gimple.c (gimple_build_call_from_tree): Likewise. * gimple.h (enum gf_mask): Likewise. (gimple_call_with_bounds_p): Likewise. (gimple_call_set_with_bounds): Likewise. * gimplify.c (gimplify_init_constructor): Likewise. * ipa-cp.c (initialize_node_lattices): Likewise. (propagate_constants_across_call): Likewise. (find_more_scalar_values_for_callers_subset): Likewise. * ipa-hsa.c (process_hsa_functions): Likewise. * ipa-icf-gimple.c (func_checker::compare_gimple_call): Likewise. * ipa-icf.c (sem_function::merge): Likewise. * ipa-inline.c (early_inliner): Likewise. * ipa-pure-const.c (warn_function_noreturn): Likewise. (warn_function_cold): Likewise. (propagate_pure_const): Likewise. * ipa-ref.h (enum GTY): Likewise. * ipa-split.c (find_retbnd): Likewise. (consider_split): Likewise. (split_function): Likewise. * ipa-visibility.c (cgraph_externally_visible_p): Likewise. * ipa.c (walk_polymorphic_call_targets): Likewise. (symbol_table::remove_unreachable_nodes): Likewise. (process_references): Likewise. (cgraph_build_static_cdtor_1): Likewise. * lto-cgraph.c (lto_output_node): Likewise. (output_refs): Likewise. (compute_ltrans_boundary): Likewise. (input_overwrite_node): Likewise. (input_node): Likewise. (input_cgraph_1): Likewise. * params.def (PARAM_CHKP_MAX_CTOR_SIZE): Likewise. * passes.c (pass_manager::execute_early_local_passes): Likewise. (class pass_chkp_instrumentation_passes): Likewise. (make_pass_chkp_instrumentation_passes): Likewise. * passes.def: Likewise. * rtl.h (struct GTY): Likewise. (CALL_EXPR_WITH_BOUNDS_P): Likewise. * stor-layout.c (layout_type): Likewise. * symtab.c: Likewise. * target.def: Likewise. * targhooks.c (default_chkp_bound_type): Likewise. (default_chkp_bound_mode): Likewise. (default_builtin_chkp_function): Likewise. (default_chkp_function_value_bounds): Likewise. (default_chkp_make_bounds_constant): Likewise. (default_chkp_initialize_bounds): Likewise. * targhooks.h (default_chkp_bound_type): Likewise. (default_chkp_bound_mode): Likewise. (default_builtin_chkp_function): Likewise. (default_chkp_function_value_bounds): Likewise. (default_chkp_make_bounds_constant): Likewise. (default_chkp_initialize_bounds): Likewise. * toplev.c (compile_file): Likewise. (process_options): Likewise. * tree-core.h (DEF_BUILTIN): Likewise. (DEF_BUILTIN_CHKP): Likewise. * tree-inline.c (declare_return_variable): Likewise. (remap_gimple_stmt): Likewise. (copy_bb): Likewise. (initialize_inlined_parameters): Likewise. (expand_call_inline): Likewise. * tree-pass.h (make_pass_ipa_chkp_versioning): Likewise. (make_pass_ipa_chkp_early_produce_thunks): Likewise. (make_pass_ipa_chkp_produce_thunks): Likewise. (make_pass_chkp): Likewise. (make_pass_chkp_opt): Likewise. (make_pass_chkp_instrumentation_passes): Likewise. * tree-pretty-print.c (dump_generic_node): Likewise. * tree-ssa-ccp.c (insert_clobber_before_stack_restore): Likewise. * tree-ssa-dce.c (propagate_necessity): Likewise. (eliminate_unnecessary_stmts): Likewise. * tree-ssa-pre.c (create_expression_by_pieces): Likewise. * tree-ssa-sccvn.c (copy_reference_ops_from_call): Likewise. * tree-ssa-sccvn.h: Likewise. * tree-ssa-strlen.c (get_string_length): Likewise. (valid_builtin_call): Likewise. (adjust_last_stmt): Likewise. (handle_builtin_strchr): Likewise. (handle_builtin_strcpy): Likewise. (handle_builtin_stxncpy): Likewise. (handle_builtin_memcpy): Likewise. (handle_builtin_strcat): Likewise. (strlen_check_and_optimize_stmt): Likewise. * tree-stdarg.c (expand_ifn_va_arg_1): Likewise. * tree-streamer-in.c: Likewise. * tree-streamer.c (record_common_node): Likewise. * tree.c (tree_code_size): Likewise. (wide_int_to_tree_1): Likewise. (type_contains_placeholder_1): Likewise. (build_common_tree_nodes): Likewise. * tree.def (POINTER_BOUNDS_TYPE): Likewise. * tree.h (POINTER_BOUNDS_TYPE_P): Likewise. (POINTER_BOUNDS_P): Likewise. (BOUNDED_TYPE_P): Likewise. (BOUNDED_P): Likewise. (CALL_WITH_BOUNDS_P): Likewise. (pointer_bounds_type_node): Likewise. * value-prof.c (gimple_ic): Likewise. * var-tracking.c (vt_add_function_parameters): Likewise. * varasm.c (make_decl_rtl): Likewise. (assemble_start_function): Likewise. (output_constant): Likewise. (maybe_assemble_visibility): Likewise. * varpool.c (ctor_for_folding): Likewise. * chkp-builtins.def: Remove. * ipa-chkp.c: Remove. * ipa-chkp.h: Remove. * rtl-chkp.c: Remove. * rtl-chkp.h: Remove. * tree-chkp-opt.c: Remove. * tree-chkp.c: Remove. * tree-chkp.h: Remove. 2018-06-08 Martin Liska <mliska@suse.cz> * c-attribs.c (handle_bnd_variable_size_attribute): Remove support for MPX (macros, related functions, fields in cgraph_node, ...). (handle_bnd_legacy): Likewise. (handle_bnd_instrument): Likewise. * c.opt: Likewise. 2018-06-08 Martin Liska <mliska@suse.cz> * lto-partition.c (add_references_to_partition): Remove support for MPX (macros, related functions, fields in cgraph_node, ...). (add_symbol_to_partition_1): Likewise. (privatize_symbol_name): Likewise. * lto-symtab.c (lto_cgraph_replace_node): Likewise. 2018-06-08 Martin Liska <mliska@suse.cz> * g++.dg/dg.exp: Do not use mpx.exp. * g++.dg/lto/lto.exp: Likewise. * g++.dg/lto/pr69729_0.C: Remove. * g++.dg/opt/pr71529.C: Remove. * g++.dg/pr63995-1.C: Remove. * g++.dg/pr68270.C: Remove. * g++.dg/pr71624.C: Remove. * g++.dg/pr71633.C: Remove. * g++.dg/pr79761.C: Remove. * g++.dg/pr79764.C: Remove. * g++.dg/pr79769.C: Remove. * gcc.dg/lto/chkp-privatize-1_0.c: Remove. * gcc.dg/lto/chkp-privatize-2_0.c: Remove. * gcc.dg/lto/chkp-privatize_0.c: Remove. * gcc.dg/lto/chkp-removed-alias_0.c: Remove. * gcc.dg/lto/chkp-static-bounds_0.c: Remove. * gcc.dg/lto/chkp-wrap-asm-name_0.c: Remove. * gcc.dg/lto/lto.exp: Do not use mpx.exp. * gcc.dg/lto/pr66221_0.c: Remove. * gcc.target/i386/chkp-always_inline.c: Remove. * gcc.target/i386/chkp-bndret.c: Remove. * gcc.target/i386/chkp-builtins-1.c: Remove. * gcc.target/i386/chkp-builtins-2.c: Remove. * gcc.target/i386/chkp-builtins-3.c: Remove. * gcc.target/i386/chkp-builtins-4.c: Remove. * gcc.target/i386/chkp-const-check-1.c: Remove. * gcc.target/i386/chkp-const-check-2.c: Remove. * gcc.target/i386/chkp-hidden-def.c: Remove. * gcc.target/i386/chkp-label-address.c: Remove. * gcc.target/i386/chkp-lifetime-1.c: Remove. * gcc.target/i386/chkp-narrow-bounds.c: Remove. * gcc.target/i386/chkp-pr69044.c: Remove. * gcc.target/i386/chkp-remove-bndint-1.c: Remove. * gcc.target/i386/chkp-remove-bndint-2.c: Remove. * gcc.target/i386/chkp-strchr.c: Remove. * gcc.target/i386/chkp-strlen-1.c: Remove. * gcc.target/i386/chkp-strlen-2.c: Remove. * gcc.target/i386/chkp-strlen-3.c: Remove. * gcc.target/i386/chkp-strlen-4.c: Remove. * gcc.target/i386/chkp-strlen-5.c: Remove. * gcc.target/i386/chkp-stropt-1.c: Remove. * gcc.target/i386/chkp-stropt-10.c: Remove. * gcc.target/i386/chkp-stropt-11.c: Remove. * gcc.target/i386/chkp-stropt-12.c: Remove. * gcc.target/i386/chkp-stropt-13.c: Remove. * gcc.target/i386/chkp-stropt-14.c: Remove. * gcc.target/i386/chkp-stropt-15.c: Remove. * gcc.target/i386/chkp-stropt-16.c: Remove. * gcc.target/i386/chkp-stropt-17.c: Remove. * gcc.target/i386/chkp-stropt-2.c: Remove. * gcc.target/i386/chkp-stropt-3.c: Remove. * gcc.target/i386/chkp-stropt-4.c: Remove. * gcc.target/i386/chkp-stropt-5.c: Remove. * gcc.target/i386/chkp-stropt-6.c: Remove. * gcc.target/i386/chkp-stropt-7.c: Remove. * gcc.target/i386/chkp-stropt-8.c: Remove. * gcc.target/i386/chkp-stropt-9.c: Remove. * gcc.target/i386/i386.exp: Do not use mpx.exp. * gcc.target/i386/indirect-thunk-11.c: Remove. * gcc.target/i386/indirect-thunk-12.c: Remove. * gcc.target/i386/indirect-thunk-attr-12.c: Remove. * gcc.target/i386/indirect-thunk-attr-13.c: Remove. * gcc.target/i386/indirect-thunk-bnd-1.c: Remove. * gcc.target/i386/indirect-thunk-bnd-2.c: Remove. * gcc.target/i386/indirect-thunk-bnd-3.c: Remove. * gcc.target/i386/indirect-thunk-bnd-4.c: Remove. * gcc.target/i386/interrupt-bnd-err-1.c: Remove. * gcc.target/i386/interrupt-bnd-err-2.c: Remove. * gcc.target/i386/mpx/alloca-1-lbv.c: Remove. * gcc.target/i386/mpx/alloca-1-nov.c: Remove. * gcc.target/i386/mpx/alloca-1-ubv.c: Remove. * gcc.target/i386/mpx/arg-addr-1-lbv.c: Remove. * gcc.target/i386/mpx/arg-addr-1-nov.c: Remove. * gcc.target/i386/mpx/arg-addr-1-ubv.c: Remove. * gcc.target/i386/mpx/bitfields-1-lbv.c: Remove. * gcc.target/i386/mpx/bitfields-1-nov.c: Remove. * gcc.target/i386/mpx/bitfields-1-ubv.c: Remove. * gcc.target/i386/mpx/builtin-bnd-chk-ptr-bounds-1-lbv.c: Remove. * gcc.target/i386/mpx/builtin-bnd-chk-ptr-bounds-1-nov.c: Remove. * gcc.target/i386/mpx/builtin-bnd-chk-ptr-bounds-1-ubv.c: Remove. * gcc.target/i386/mpx/builtin-bnd-chk-ptr-bounds-2.c: Remove. * gcc.target/i386/mpx/builtin-bnd-chk-ptr-lbounds-1-lbv.c: Remove. * gcc.target/i386/mpx/builtin-bnd-chk-ptr-lbounds-1-nov.c: Remove. * gcc.target/i386/mpx/builtin-bnd-chk-ptr-lbounds-2.c: Remove. * gcc.target/i386/mpx/builtin-bnd-chk-ptr-ubounds-1-nov.c: Remove. * gcc.target/i386/mpx/builtin-bnd-chk-ptr-ubounds-1-ubv.c: Remove. * gcc.target/i386/mpx/builtin-bnd-chk-ptr-ubounds-2.c: Remove. * gcc.target/i386/mpx/builtin-bnd-copy-ptr-bounds-1.c: Remove. * gcc.target/i386/mpx/builtin-bnd-copy-ptr-bounds-2-lbv.c: Remove. * gcc.target/i386/mpx/builtin-bnd-copy-ptr-bounds-2-nov.c: Remove. * gcc.target/i386/mpx/builtin-bnd-copy-ptr-bounds-2-ubv.c: Remove. * gcc.target/i386/mpx/builtin-bnd-copy-ptr-bounds-3.c: Remove. * gcc.target/i386/mpx/builtin-bnd-get-ptr-lbound-1.c: Remove. * gcc.target/i386/mpx/builtin-bnd-get-ptr-lbound-2.c: Remove. * gcc.target/i386/mpx/builtin-bnd-get-ptr-ubound-1.c: Remove. * gcc.target/i386/mpx/builtin-bnd-get-ptr-ubound-2.c: Remove. * gcc.target/i386/mpx/builtin-bnd-init-ptr-bounds-1.c: Remove. * gcc.target/i386/mpx/builtin-bnd-init-ptr-bounds-2-nov.c: Remove. * gcc.target/i386/mpx/builtin-bnd-init-ptr-bounds-3.c: Remove. * 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* gcc.target/i386/mpx/struct-arg-7-lbv.c: Remove. * gcc.target/i386/mpx/struct-arg-7-nov.c: Remove. * gcc.target/i386/mpx/struct-arg-7-ubv.c: Remove. * gcc.target/i386/mpx/struct-arg-8-lbv.c: Remove. * gcc.target/i386/mpx/struct-arg-8-nov.c: Remove. * gcc.target/i386/mpx/struct-arg-8-ubv.c: Remove. * gcc.target/i386/mpx/struct-arg-9-lbv.c: Remove. * gcc.target/i386/mpx/struct-arg-9-nov.c: Remove. * gcc.target/i386/mpx/struct-arg-9-ubv.c: Remove. * gcc.target/i386/mpx/struct-copy-1-lbv.c: Remove. * gcc.target/i386/mpx/struct-copy-1-nov.c: Remove. * gcc.target/i386/mpx/struct-copy-1-ubv.c: Remove. * gcc.target/i386/mpx/struct-copy-2-lbv.c: Remove. * gcc.target/i386/mpx/struct-copy-2-nov.c: Remove. * gcc.target/i386/mpx/struct-copy-2-ubv.c: Remove. * gcc.target/i386/mpx/thread-local-var-1-lbv.c: Remove. * gcc.target/i386/mpx/thread-local-var-1-nov.c: Remove. * gcc.target/i386/mpx/thread-local-var-1-ubv.c: Remove. * gcc.target/i386/mpx/union-arg-1-lbv.c: Remove. * gcc.target/i386/mpx/union-arg-1-nov.c: Remove. * gcc.target/i386/mpx/union-arg-1-ubv.c: Remove. * gcc.target/i386/mpx/va-arg-pack-1-lbv.c: Remove. * gcc.target/i386/mpx/va-arg-pack-1-nov.c: Remove. * gcc.target/i386/mpx/va-arg-pack-1-ubv.c: Remove. * gcc.target/i386/mpx/va-arg-pack-2-lbv.c: Remove. * gcc.target/i386/mpx/va-arg-pack-2-nov.c: Remove. * gcc.target/i386/mpx/va-arg-pack-2-ubv.c: Remove. * gcc.target/i386/mpx/vararg-1-lbv.c: Remove. * gcc.target/i386/mpx/vararg-1-nov.c: Remove. * gcc.target/i386/mpx/vararg-1-ubv.c: Remove. * gcc.target/i386/mpx/vararg-2-lbv.c: Remove. * gcc.target/i386/mpx/vararg-2-nov.c: Remove. * gcc.target/i386/mpx/vararg-2-ubv.c: Remove. * gcc.target/i386/mpx/vararg-3-lbv.c: Remove. * gcc.target/i386/mpx/vararg-3-nov.c: Remove. * gcc.target/i386/mpx/vararg-3-ubv.c: Remove. * gcc.target/i386/mpx/vararg-4-lbv.c: Remove. * gcc.target/i386/mpx/vararg-4-nov.c: Remove. * gcc.target/i386/mpx/vararg-4-ubv.c: Remove. * gcc.target/i386/mpx/vararg-5-lbv.c: Remove. * gcc.target/i386/mpx/vararg-5-nov.c: Remove. * gcc.target/i386/mpx/vararg-5-ubv.c: Remove. * gcc.target/i386/mpx/vararg-6-lbv.c: Remove. * gcc.target/i386/mpx/vararg-6-nov.c: Remove. * gcc.target/i386/mpx/vararg-6-ubv.c: Remove. * gcc.target/i386/mpx/vararg-7-lbv.c: Remove. * gcc.target/i386/mpx/vararg-7-nov.c: Remove. * gcc.target/i386/mpx/vararg-7-ubv.c: Remove. * gcc.target/i386/mpx/vararg-8-lbv.c: Remove. * gcc.target/i386/mpx/vararg-8-nov.c: Remove. * gcc.target/i386/mpx/vararg-8-ubv.c: Remove. * gcc.target/i386/mpx/vla-1-lbv.c: Remove. * gcc.target/i386/mpx/vla-1-nov.c: Remove. * gcc.target/i386/mpx/vla-1-ubv.c: Remove. * gcc.target/i386/mpx/vla-2-lbv.c: Remove. * gcc.target/i386/mpx/vla-2-nov.c: Remove. * gcc.target/i386/mpx/vla-2-ubv.c: Remove. * gcc.target/i386/mpx/vla-trailing-1-lbv.c: Remove. * gcc.target/i386/mpx/vla-trailing-1-nov.c: Remove. * gcc.target/i386/mpx/vla-trailing-1-ubv.c: Remove. * gcc.target/i386/pr63995-2.c: Remove. * gcc.target/i386/pr64805.c: Remove. * gcc.target/i386/pr65044.c: Remove. * gcc.target/i386/pr65167.c: Remove. * gcc.target/i386/pr65183.c: Remove. * gcc.target/i386/pr65184.c: Remove. * gcc.target/i386/pr65523.c: Remove. * gcc.target/i386/pr70876.c: Remove. * gcc.target/i386/pr70877.c: Remove. * gcc.target/i386/pr71458.c: Remove. * gcc.target/i386/pr80880.c: Remove. * gcc.target/i386/ret-thunk-25.c: Remove. * gcc.target/i386/thunk-retbnd.c: Remove. * lib/mpx-dg.exp: Remove. * gcc.target/i386/funcspec-56.inc: Adjust test case. From-SVN: r261304
2018-06-04re PR middle-end/85955 (ICE in fold_convert_loc, at fold-const.c:2408)Richard Biener1-0/+3
2018-06-04 Richard Biener <rguenther@suse.de> PR tree-optimization/85955 * builtins.c (fold_builtin_sincos): Convert pointers to destination to appropriate type before dereferencing. * gcc.dg/pr85955.c: New testcase. From-SVN: r261165
2018-05-312nd Patch for PR78009Qing Zhao1-0/+33
Patch for PR83026 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78809 Inline strcmp with small constant strings https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83026 missing strlen optimization for strcmp of unequal strings The design doc for PR78809 is at: https://www.mail-archive.com/gcc@gcc.gnu.org/msg83822.html this patch is for the second part of change of PR78809 and PR83026: B. for strncmp (s1, s2, n) (!)= 0 or strcmp (s1, s2) (!)= 0 B.1. (PR83026) When the lengths of both arguments are constant and it's a strcmp: * if the lengths are NOT equal, we can safely fold the call to a non-zero value. * otherwise, do nothing now. B.2. (PR78809) When the length of one argument is constant, try to replace the call with a __builtin_str(n)cmp_eq call where possible, i.e: strncmp (s, STR, C) (!)= 0 in which, s is a pointer to a string, STR is a string with constant length, C is a constant. if (C <= strlen(STR) && sizeof_array(s) > C) { replace this call with __builtin_strncmp_eq (s, STR, C) (!)= 0 } if (C > strlen(STR) { it can be safely treated as a call to strcmp (s, STR) (!)= 0 can handled by the following strcmp. } strcmp (s, STR) (!)= 0 in which, s is a pointer to a string, STR is a string with constant length. if (sizeof_array(s) > strlen(STR)) { replace this call with __builtin_strcmp_eq (s, STR, strlen(STR)+1) (!)= 0 } later when expanding the new __builtin_str(n)cmp_eq calls, first expand them as __builtin_memcmp_eq, if the expansion does not succeed, change them back to call to __builtin_str(n)cmp. adding test case strcmpopt_2.c and strcmpopt_4.c into gcc.dg for part B of PR78809 adding test case strcmpopt_3.c into gcc.dg for PR83026 From-SVN: r261039
2018-05-30PR middle-end/85369 - no -Wstringop-overflow for a strcpy / stpcpy call with ↵Martin Sebor1-1/+20
a nonstring pointer when providing movstr pattern gcc/ChangeLog: PR middle-end/85369 * builtins.c (expand_builtin_stpcpy_1): New function. (expand_builtin_stpcpy): Call it, and call maybe_warn_nonstring_arg only if the former succeeds. From-SVN: r260976
2018-05-22PR middle-end/85359 - duplicate -Wstringop-overflow for a strcmp call with a ↵Martin Sebor1-11/+21
nonstring pointer gcc/ChangeLog: PR middle-end/85359 * builtins.c (expand_builtin_strcpy): Call maybe_warn_nonstring_arg only when expasion succeeds. (expand_builtin_strcmp): Same. (expand_builtin_strncmp): Same. gcc/testsuite/ChangeLog: PR middle-end/85359 * gcc.dg/attr-nonstring.c: New test. From-SVN: r260550
2018-05-18Replace FMA_EXPR with one internal fn per optabRichard Sandiford1-19/+0
There are four optabs for various forms of fused multiply-add: fma, fms, fnma and fnms. Of these, only fma had a direct gimple representation. For the other three we relied on special pattern- matching during expand, although tree-ssa-math-opts.c did have some code to try to second-guess what expand would do. This patch removes the old FMA_EXPR representation of fma and introduces four new internal functions, one for each optab. IFN_FMA is tied to BUILT_IN_FMA* while the other three are independent directly-mapped internal functions. It's then possible to do the pattern-matching in match.pd and tree-ssa-math-opts.c (via folding) can select the exact FMA-based operation. The BRIG & HSA parts are a best guess, but seem relatively simple. 2018-05-18 Richard Sandiford <richard.sandiford@linaro.org> gcc/ * doc/sourcebuild.texi (scalar_all_fma): Document. * tree.def (FMA_EXPR): Delete. * internal-fn.def (FMA, FMS, FNMA, FNMS): New internal functions. * internal-fn.c (ternary_direct): New macro. (expand_ternary_optab_fn): Likewise. (direct_ternary_optab_supported_p): Likewise. * Makefile.in (build/genmatch.o): Depend on case-fn-macros.h. * builtins.c (fold_builtin_fma): Delete. (fold_builtin_3): Don't call it. * cfgexpand.c (expand_debug_expr): Remove FMA_EXPR handling. * expr.c (expand_expr_real_2): Likewise. * fold-const.c (operand_equal_p): Likewise. (fold_ternary_loc): Likewise. * gimple-pretty-print.c (dump_ternary_rhs): Likewise. * gimple.c (DEFTREECODE): Likewise. * gimplify.c (gimplify_expr): Likewise. * optabs-tree.c (optab_for_tree_code): Likewise. * tree-cfg.c (verify_gimple_assign_ternary): Likewise. * tree-eh.c (operation_could_trap_p): Likewise. (stmt_could_throw_1_p): Likewise. * tree-inline.c (estimate_operator_cost): Likewise. * tree-pretty-print.c (dump_generic_node): Likewise. (op_code_prio): Likewise. * tree-ssa-loop-im.c (stmt_cost): Likewise. * tree-ssa-operands.c (get_expr_operands): Likewise. * tree.c (commutative_ternary_tree_code, add_expr): Likewise. * fold-const-call.h (fold_fma): Delete. * fold-const-call.c (fold_const_call_ssss): Handle CFN_FMS, CFN_FNMA and CFN_FNMS. (fold_fma): Delete. * genmatch.c (combined_fn): New enum. (commutative_ternary_tree_code): Remove FMA_EXPR handling. (commutative_op): New function. (commutate): Use it. Handle more than 2 operands. (dt_operand::gen_gimple_expr): Use commutative_op. (parser::parse_expr): Allow :c to be used with non-binary operators if the commutative operand is known. * gimple-ssa-backprop.c (backprop::process_builtin_call_use): Handle CFN_FMS, CFN_FNMA and CFN_FNMS. (backprop::process_assign_use): Remove FMA_EXPR handling. * hsa-gen.c (gen_hsa_insns_for_operation_assignment): Likewise. (gen_hsa_fma): New function. (gen_hsa_insn_for_internal_fn_call): Use it for IFN_FMA, IFN_FMS, IFN_FNMA and IFN_FNMS. * match.pd: Add folds for IFN_FMS, IFN_FNMA and IFN_FNMS. * gimple-fold.h (follow_all_ssa_edges): Declare. * gimple-fold.c (follow_all_ssa_edges): New function. * tree-ssa-math-opts.c (convert_mult_to_fma_1): Use the gimple_build interface and use follow_all_ssa_edges to fold the result. (convert_mult_to_fma): Use direct_internal_fn_suppoerted_p instead of checking for optabs directly. * config/i386/i386.c (ix86_add_stmt_cost): Recognize FMAs as calls rather than FMA_EXPRs. * config/rs6000/rs6000.c (rs6000_gimple_fold_builtin): Create a call to IFN_FMA instead of an FMA_EXPR. gcc/brig/ * brigfrontend/brig-function.cc (brig_function::get_builtin_for_hsa_opcode): Use BUILT_IN_FMA for BRIG_OPCODE_FMA. (brig_function::get_tree_code_for_hsa_opcode): Treat BUILT_IN_FMA as a call. gcc/c/ * gimple-parser.c (c_parser_gimple_postfix_expression): Remove __FMA_EXPR handlng. gcc/cp/ * constexpr.c (cxx_eval_constant_expression): Remove FMA_EXPR handling. (potential_constant_expression_1): Likewise. gcc/testsuite/ * lib/target-supports.exp (check_effective_target_scalar_all_fma): New proc. * gcc.dg/fma-1.c: New test. * gcc.dg/fma-2.c: Likewise. * gcc.dg/fma-3.c: Likewise. * gcc.dg/fma-4.c: Likewise. * gcc.dg/fma-5.c: Likewise. * gcc.dg/fma-6.c: Likewise. * gcc.dg/fma-7.c: Likewise. * gcc.dg/gimplefe-26.c: Use .FMA instead of __FMA and require scalar_all_fma. * gfortran.dg/reassoc_7.f: Pass -ffp-contract=off. * gfortran.dg/reassoc_8.f: Likewise. * gfortran.dg/reassoc_9.f: Likewise. * gfortran.dg/reassoc_10.f: Likewise. From-SVN: r260348
2018-05-04[expand] Handle null target in expand_builtin_goacc_parlevel_id_sizeTom de Vries1-0/+3
2018-05-04 Tom de Vries <tom@codesourcery.com> PR libgomp/85639 * builtins.c (expand_builtin_goacc_parlevel_id_size): Handle null target if ignore == 0. From-SVN: r259927
2018-05-02[openacc] Add __builtin_goacc_parlevel_{id,size}Tom de Vries1-0/+71
2018-05-02 Tom de Vries <tom@codesourcery.com> PR libgomp/82428 * builtins.def (DEF_GOACC_BUILTIN_ONLY): Define. * omp-builtins.def (BUILT_IN_GOACC_PARLEVEL_ID) (BUILT_IN_GOACC_PARLEVEL_SIZE): New builtin. * builtins.c (expand_builtin_goacc_parlevel_id_size): New function. (expand_builtin): Call expand_builtin_goacc_parlevel_id_size. * doc/extend.texi (Other Builtins): Add __builtin_goacc_parlevel_id and __builtin_goacc_parlevel_size. * f95-lang.c (DEF_GOACC_BUILTIN_ONLY): Define. * c-c++-common/goacc/builtin-goacc-parlevel-id-size-2.c: New test. * c-c++-common/goacc/builtin-goacc-parlevel-id-size.c: New test. * testsuite/libgomp.oacc-c-c++-common/gang-static-2.c: Use __builtin_goacc_parlevel_{id,size}. * testsuite/libgomp.oacc-c-c++-common/loop-auto-1.c: Same. * testsuite/libgomp.oacc-c-c++-common/loop-dim-default.c: Same. * testsuite/libgomp.oacc-c-c++-common/loop-g-1.c: Same. * testsuite/libgomp.oacc-c-c++-common/loop-g-2.c: Same. * testsuite/libgomp.oacc-c-c++-common/loop-gwv-1.c: Same. * testsuite/libgomp.oacc-c-c++-common/loop-red-g-1.c: Same. * testsuite/libgomp.oacc-c-c++-common/loop-red-gwv-1.c: Same. * testsuite/libgomp.oacc-c-c++-common/loop-red-v-1.c: Same. * testsuite/libgomp.oacc-c-c++-common/loop-red-v-2.c: Same. * testsuite/libgomp.oacc-c-c++-common/loop-red-w-1.c: Same. * testsuite/libgomp.oacc-c-c++-common/loop-red-w-2.c: Same. * testsuite/libgomp.oacc-c-c++-common/loop-red-wv-1.c: Same. * testsuite/libgomp.oacc-c-c++-common/loop-v-1.c: Same. * testsuite/libgomp.oacc-c-c++-common/loop-w-1.c: Same. * testsuite/libgomp.oacc-c-c++-common/loop-wv-1.c: Same. * testsuite/libgomp.oacc-c-c++-common/parallel-dims.c: Same. * testsuite/libgomp.oacc-c-c++-common/routine-g-1.c: Same. * testsuite/libgomp.oacc-c-c++-common/routine-gwv-1.c: Same. * testsuite/libgomp.oacc-c-c++-common/routine-v-1.c: Same. * testsuite/libgomp.oacc-c-c++-common/routine-w-1.c: Same. * testsuite/libgomp.oacc-c-c++-common/routine-wv-1.c: Same. * testsuite/libgomp.oacc-c-c++-common/routine-wv-2.c: Same. * testsuite/libgomp.oacc-c-c++-common/tile-1.c: Same. From-SVN: r259850
2018-04-17re PR sanitizer/85230 (asan: false positives in kernel on allocas)Jakub Jelinek1-6/+12
PR sanitizer/85230 * asan.c (handle_builtin_stack_restore): Adjust comment. Emit __asan_allocas_unpoison call and last_alloca_addr = new_sp before __builtin_stack_restore rather than after it. * builtins.c (expand_asan_emit_allocas_unpoison): Pass arg1 + (virtual_dynamic_stack_rtx - stack_pointer_rtx) as second argument instead of virtual_dynamic_stack_rtx. From-SVN: r259446
2018-04-13re PR middle-end/81657 (FAIL: gcc.dg/20050503-1.c scan-assembler-not call)Martin Liska1-4/+8
PR middle-end/81657 * expr.h (enum block_op_methods): Add BLOCK_OP_NO_LIBCALL_RET. * expr.c (emit_block_move_hints): Handle BLOCK_OP_NO_LIBCALL_RET. * builtins.c (expand_builtin_memory_copy_args): Use BLOCK_OP_NO_LIBCALL_RET method for mempcpy with non-ignored target, handle dest_addr == pc_rtx. * gcc.dg/string-opt-1.c: Remove bogus comment. Expect a mempcpy call. Co-Authored-By: Jakub Jelinek <jakub@redhat.com> From-SVN: r259366
2018-04-04Fix -Wstringop-overflow regressionMichael Matz1-1/+1
we shouldn't claim string overflows for character arrays at end of structures; the code that tries to avoid these accidentally passed the address of the accessed member to array_at_struct_end_p(), but that one wants the component_ref or array_ref itself. Needs updating of one testcase that incorrectly expected warning to occur in this situation. From-SVN: r259083
2018-04-03re PR tree-optimization/85156 (ICE with -O1 -g: gimplification failed)Jakub Jelinek1-0/+1
PR tree-optimization/85156 * builtins.c (fold_builtin_expect): Use save_expr on arg1 to avoid evaluating the argument multiple times. * c-c++-common/pr85156.c: New test. * gcc.c-torture/execute/pr85156.c: New test. From-SVN: r259057
2018-03-30PR tree-optimization/84818 - integer_onep must not be used for i18nMartin Sebor1-11/+9
gcc/ChangeLog: PR tree-optimization/84818 * builtins.c (check_access): Use warning_n. From-SVN: r258983
2018-03-20re PR c/84953 (misleading warning from strpbrk(x,""))Jakub Jelinek1-1/+1
PR c/84953 * builtins.c (fold_builtin_strpbrk): For strpbrk(x, "") use type instead of TREE_TYPE (s1) for the return value. * gcc.dg/pr84953.c: New test. From-SVN: r258671
2018-02-19re PR c++/84444 (ICE with __builtin_launder and cast)Jakub Jelinek1-2/+1
PR c++/84444 * builtins.c (builtin_mathfn_code): Don't check if CALL_EXPR_FN (t) is ADDR_EXPR. * g++.dg/cpp1z/launder8.C: New test. From-SVN: r257822
2018-01-18Add ability to remap file names in __FILE__, etc (PR other/70268)Boris Kolpackov1-0/+7
This commit adds the -fmacro-prefix-map option that allows remapping of file names in __FILE__, __BASE_FILE__, and __builtin_FILE(), similar to how -fdebug-prefix-map allows to do the same for debug information. Additionally, it adds -ffile-prefix-map which can be used to specify both mappings with a single option (and, should we need to add more -f*-prefix-map options in the future, those as well). libcpp/ChangeLog: 2018-01-18 Boris Kolpackov <boris@codesynthesis.com> PR other/70268 * include/cpplib.h (cpp_callbacks::remap_filename): New callback. * libcpp/macro.c (_cpp_builtin_macro_text): Call remap_filename for __FILE__ and __BASE_FILE__. gcc/ChangeLog: 2018-01-18 Boris Kolpackov <boris@codesynthesis.com> PR other/70268 * common.opt: (-ffile-prefix-map): New option. * opts.c (common_handle_option): Defer it. * opts-global.c (handle_common_deferred_options): Handle it. * debug.h (remap_debug_filename, add_debug_prefix_map): Move to... * file-prefix-map.h: New file. (remap_debug_filename, add_debug_prefix_map): ...here. (add_macro_prefix_map, add_file_prefix_map, remap_macro_filename): New. * final.c (debug_prefix_map, add_debug_prefix_map remap_debug_filename): Move to... * file-prefix-map.c: New file. (file_prefix_map, add_prefix_map, remap_filename) ...here and rename, generalize, get rid of alloca(), use strrchr() instead of strchr(). (add_macro_prefix_map, add_debug_prefix_map, add_file_prefix_map): Implement in terms of add_prefix_map(). (remap_macro_filename, remap_debug_filename): Implement in term of remap_filename(). * Makefile.in (OBJS, PLUGIN_HEADERS): Add new files. * builtins.c (fold_builtin_FILE): Call remap_macro_filename(). * dbxout.c: Include file-prefix-map.h. * varasm.c: Likewise. * vmsdbgout.c: Likewise. * xcoffout.c: Likewise. * dwarf2out.c: Likewise plus omit new options from DW_AT_producer. * doc/cppopts.texi (-fmacro-prefix-map): Document. * doc/invoke.texi (-ffile-prefix-map): Document. (-fdebug-prefix-map): Update description. gcc/c-family/ChangeLog: 2018-01-18 Boris Kolpackov <boris@codesynthesis.com> PR other/70268 * c-family/c.opt (-fmacro-prefix-map): New option. * c-family/c-opts.c (c_common_handle_option): Handle it. * c-family/c-lex.c (init_c_lex): Set remap_filename cpp callback. * c-family/c-ppoutput.c (init_pp_output): Likewise. gcc/testsuite/ChangeLog: 2018-01-18 Boris Kolpackov <boris@codesynthesis.com> PR other/70268 * c-c++-common/ffile-prefix-map.c: New test. * c-c++-common/fmacro-prefix-map.c: New test. * c-c++-common/cpp/ffile-prefix-map.c: New test. * c-c++-common/cpp/fmacro-prefix-map.c: New test. From-SVN: r256847
2018-01-14re PR other/83508 ([arm] c-c++-common/Wrestrict.c fails since r255836)Martin Sebor1-0/+12
PR other/83508 * builtins.c (check_access): Avoid warning when the no-warning bit is set. PR other/83508 * gcc.dg/Wstringop-overflow-2.c: New test. From-SVN: r256683
2018-01-10PR tree-optimization/83671 - Fix for false positive reported by ↵Martin Sebor1-1/+5
-Wstringop-overflow does not work with inlining gcc/testsuite/ChangeLog: PR tree-optimization/83671 * gcc.dg/strlenopt-40.c: New test. * gcc.dg/strlenopt-41.c: New test. gcc/ChangeLog: PR tree-optimization/83671 * builtins.c (c_strlen): Unconditionally return zero for the empty string. Use -Warray-bounds for warnings. * gimple-fold.c (get_range_strlen): Handle non-constant lengths for non-constant array indices with COMPONENT_REF, arrays of arrays, and pointers to arrays. (gimple_fold_builtin_strlen): Determine and set length range for non-constant character arrays. From-SVN: r256457
2018-01-03poly_int: GET_MODE_SIZERichard Sandiford1-1/+1
This patch changes GET_MODE_SIZE from unsigned short to poly_uint16. The non-mechanical parts were handled by previous patches. 2018-01-03 Richard Sandiford <richard.sandiford@linaro.org> Alan Hayward <alan.hayward@arm.com> David Sherwood <david.sherwood@arm.com> gcc/ * machmode.h (mode_size): Change from unsigned short to poly_uint16_pod. (mode_to_bytes): Return a poly_uint16 rather than an unsigned short. (GET_MODE_SIZE): Return a constant if ONLY_FIXED_SIZE_MODES, or if measurement_type is not polynomial. (fixed_size_mode::includes_p): Check for constant-sized modes. * genmodes.c (emit_mode_size_inline): Make mode_size_inline return a poly_uint16 rather than an unsigned short. (emit_mode_size): Change the type of mode_size from unsigned short to poly_uint16_pod. Use ZERO_COEFFS for the initializer. (emit_mode_adjustments): Cope with polynomial vector sizes. * lto-streamer-in.c (lto_input_mode_table): Use bp_unpack_poly_value for GET_MODE_SIZE. * lto-streamer-out.c (lto_write_mode_table): Use bp_pack_poly_value for GET_MODE_SIZE. * auto-inc-dec.c (try_merge): Treat GET_MODE_SIZE as polynomial. * builtins.c (expand_ifn_atomic_compare_exchange_into_call): Likewise. * caller-save.c (setup_save_areas): Likewise. (replace_reg_with_saved_mem): Likewise. * calls.c (emit_library_call_value_1): Likewise. * combine-stack-adj.c (combine_stack_adjustments_for_block): Likewise. * combine.c (simplify_set, make_extraction, simplify_shift_const_1) (gen_lowpart_for_combine): Likewise. * convert.c (convert_to_integer_1): Likewise. * cse.c (equiv_constant, cse_insn): Likewise. * cselib.c (autoinc_split, cselib_hash_rtx): Likewise. (cselib_subst_to_values): Likewise. * dce.c (word_dce_process_block): Likewise. * df-problems.c (df_word_lr_mark_ref): Likewise. * dwarf2cfi.c (init_one_dwarf_reg_size): Likewise. * dwarf2out.c (multiple_reg_loc_descriptor, mem_loc_descriptor) (concat_loc_descriptor, concatn_loc_descriptor, loc_descriptor) (rtl_for_decl_location): Likewise. * emit-rtl.c (gen_highpart, widen_memory_access): Likewise. * expmed.c (extract_bit_field_1, extract_integral_bit_field): Likewise. * expr.c (emit_group_load_1, clear_storage_hints): Likewise. (emit_move_complex, emit_move_multi_word, emit_push_insn): Likewise. (expand_expr_real_1): Likewise. * function.c (assign_parm_setup_block_p, assign_parm_setup_block) (pad_below): Likewise. * gimple-fold.c (optimize_atomic_compare_exchange_p): Likewise. * gimple-ssa-store-merging.c (rhs_valid_for_store_merging_p): Likewise. * ira.c (get_subreg_tracking_sizes): Likewise. * ira-build.c (ira_create_allocno_objects): Likewise. * ira-color.c (coalesced_pseudo_reg_slot_compare): Likewise. (ira_sort_regnos_for_alter_reg): Likewise. * ira-costs.c (record_operand_costs): Likewise. * lower-subreg.c (interesting_mode_p, simplify_gen_subreg_concatn) (resolve_simple_move): Likewise. * lra-constraints.c (get_reload_reg, operands_match_p): Likewise. (process_addr_reg, simplify_operand_subreg, curr_insn_transform) (lra_constraints): Likewise. (CONST_POOL_OK_P): Reject variable-sized modes. * lra-spills.c (slot, assign_mem_slot, pseudo_reg_slot_compare) (add_pseudo_to_slot, lra_spill): Likewise. * omp-low.c (omp_clause_aligned_alignment): Likewise. * optabs-query.c (get_best_extraction_insn): Likewise. * optabs-tree.c (expand_vec_cond_expr_p): Likewise. * optabs.c (expand_vec_perm_var, expand_vec_cond_expr): Likewise. (expand_mult_highpart, valid_multiword_target_p): Likewise. * recog.c (offsettable_address_addr_space_p): Likewise. * regcprop.c (maybe_mode_change): Likewise. * reginfo.c (choose_hard_reg_mode, record_subregs_of_mode): Likewise. * regrename.c (build_def_use): Likewise. * regstat.c (dump_reg_info): Likewise. * reload.c (complex_word_subreg_p, push_reload, find_dummy_reload) (find_reloads, find_reloads_subreg_address): Likewise. * reload1.c (eliminate_regs_1): Likewise. * rtlanal.c (for_each_inc_dec_find_inc_dec, rtx_cost): Likewise. * simplify-rtx.c (avoid_constant_pool_reference): Likewise. (simplify_binary_operation_1, simplify_subreg): Likewise. * targhooks.c (default_function_arg_padding): Likewise. (default_hard_regno_nregs, default_class_max_nregs): Likewise. * tree-cfg.c (verify_gimple_assign_binary): Likewise. (verify_gimple_assign_ternary): Likewise. * tree-inline.c (estimate_move_cost): Likewise. * tree-ssa-forwprop.c (simplify_vector_constructor): Likewise. * tree-ssa-loop-ivopts.c (add_autoinc_candidates): Likewise. (get_address_cost_ainc): Likewise. * tree-vect-data-refs.c (vect_enhance_data_refs_alignment): Likewise. (vect_supportable_dr_alignment): Likewise. * tree-vect-loop.c (vect_determine_vectorization_factor): Likewise. (vectorizable_reduction): Likewise. * tree-vect-stmts.c (vectorizable_assignment, vectorizable_shift) (vectorizable_operation, vectorizable_load): Likewise. * tree.c (build_same_sized_truth_vector_type): Likewise. * valtrack.c (cleanup_auto_inc_dec): Likewise. * var-tracking.c (emit_note_insn_var_location): Likewise. * config/arc/arc.h (ASM_OUTPUT_CASE_END): Use as_a <scalar_int_mode>. (ADDR_VEC_ALIGN): Likewise. Co-Authored-By: Alan Hayward <alan.hayward@arm.com> Co-Authored-By: David Sherwood <david.sherwood@arm.com> From-SVN: r256201
2018-01-03Add a fixed_size_mode_pod classRichard Sandiford1-10/+8
This patch adds a POD version of fixed_size_mode. The only current use is for storing the __builtin_apply and __builtin_result register modes, which were made fixed_size_modes by the previous patch. 2018-01-03 Richard Sandiford <richard.sandiford@linaro.org> Alan Hayward <alan.hayward@arm.com> David Sherwood <david.sherwood@arm.com> gcc/ * coretypes.h (fixed_size_mode): Declare. (fixed_size_mode_pod): New typedef. * builtins.h (target_builtins::x_apply_args_mode) (target_builtins::x_apply_result_mode): Change type to fixed_size_mode_pod. * builtins.c (apply_args_size, apply_result_size, result_vector) (expand_builtin_apply_args_1, expand_builtin_apply) (expand_builtin_return): Update accordingly. Co-Authored-By: Alan Hayward <alan.hayward@arm.com> Co-Authored-By: David Sherwood <david.sherwood@arm.com> From-SVN: r256193
2018-01-03Update copyright years.Jakub Jelinek1-1/+1
From-SVN: r256169
2018-01-03poly_int: expand_ifn_atomic_compare_exchange_into_callRichard Sandiford1-1/+4
This patch makes the mode size assumptions in expand_ifn_atomic_compare_exchange_into_call a bit more explicit, so that a later patch can add a to_constant () call. 2018-01-03 Richard Sandiford <richard.sandiford@linaro.org> Alan Hayward <alan.hayward@arm.com> David Sherwood <david.sherwood@arm.com> gcc/ * builtins.c (expand_ifn_atomic_compare_exchange_into_call): Assert that the mode size is in the set {1, 2, 4, 8, 16}. Co-Authored-By: Alan Hayward <alan.hayward@arm.com> Co-Authored-By: David Sherwood <david.sherwood@arm.com> From-SVN: r256157
2017-12-28builtins.def: (_Float<N> and _Float<N>X BUILT_IN_CEIL): Add _Float<N> and ↵Michael Meissner1-6/+6
_Float<N>X variants... [gcc] 2017-12-28 Michael Meissner <meissner@linux.vnet.ibm.com> * builtins.def: (_Float<N> and _Float<N>X BUILT_IN_CEIL): Add _Float<N> and _Float<N>X variants for rounding built-in functions. (_Float<N> and _Float<N>X BUILT_IN_FLOOR): Likewise. (_Float<N> and _Float<N>X BUILT_IN_NEARBYINT): Likewise. (_Float<N> and _Float<N>X BUILT_IN_RINT): Likewise. (_Float<N> and _Float<N>X BUILT_IN_ROUND): Likewise. (_Float<N> and _Float<N>X BUILT_IN_TRUNC): Likewise. * builtins.c (mathfn_built_in_2): Likewise. * internal-fn.def (CEIL): Likewise. (FLOOR): Likewise. (NEARBYINT): Likewise. (RINT): Likewise. (ROUND): Likewise. (TRUNC): Likewise. * convert.c (convert_to_integer_1): Likewise. * fold-const.c (tree_call_nonnegative_warnv_p): Likewise. (integer_valued_real_call_p): Likewise. * fold-const-call.c (fold_const_call_ss): Likewise. * gencfn-macros.c (print_case_cfn): Change CFN and operator printers to take a const char * suffix instead of a bool. (print_define_operator_list): Likewise. (fltall_suffixes): New list of suffixes, that include the traditional suffixes as well as all of the _Float<N> and _Float<N>X suffixes. (main): For _Float<N> and _Float<N>X functions, emit both <name>_FN and <name>_ALL variants. The <macro>_FN variant only has the _Float<N> and _Float<N>X case names or operators. The <name>_ALL variant has both the traditional and the _Float<N>/_Float<N>X case names or operators. * match.pd (COPYSIGN optimizations): Provide optimizations for _Float<N> and _Float<N>X types where possible. (MIN/MAX optimizations): Likewise. (sqrt optimizations): Likewise. (rounding optimizations): Likewise. [gcc/c] 2017-12-28 Michael Meissner <meissner@linux.vnet.ibm.com> * c-decl.c (header_for_builtin_fn): Add integer rounding _Float<N> and _Float<N>X built-in functions. From-SVN: r256026
2017-12-21poly_int: MEM_REF offsetsRichard Sandiford1-1/+1
This patch allows MEM_REF offsets to be polynomial, with mem_ref_offset now returning a poly_offset_int instead of an offset_int. The non-mechanical changes to callers of mem_ref_offset were handled by previous patches. 2017-12-21 Richard Sandiford <richard.sandiford@linaro.org> Alan Hayward <alan.hayward@arm.com> David Sherwood <david.sherwood@arm.com> gcc/ * fold-const.h (mem_ref_offset): Return a poly_offset_int rather than an offset_int. * tree.c (mem_ref_offset): Likewise. (build_simple_mem_ref_loc): Treat MEM_REF offsets as poly_ints. * builtins.c (get_object_alignment_2): Likewise. * expr.c (get_inner_reference, expand_expr_real_1): Likewise. * gimple-fold.c (get_base_constructor): Likewise. * gimple-ssa-strength-reduction.c (restructure_reference): Likewise. * gimple-ssa-warn-restrict.c (builtin_memref::builtin_memref): Likewise. * ipa-polymorphic-call.c (ipa_polymorphic_call_context::ipa_polymorphic_call_context): Likewise. * ipa-prop.c (compute_complex_assign_jump_func): Likewise. (get_ancestor_addr_info): Likewise. * ipa-param-manipulation.c (ipa_get_adjustment_candidate): Likewise. * match.pd: Likewise. * tree-data-ref.c (dr_analyze_innermost): Likewise. * tree-dfa.c (get_addr_base_and_unit_offset_1): Likewise. * tree-eh.c (tree_could_trap_p): Likewise. * tree-object-size.c (addr_object_size): Likewise. * tree-ssa-address.c (copy_ref_info): Likewise. * tree-ssa-alias.c (indirect_ref_may_alias_decl_p): Likewise. (indirect_refs_may_alias_p): Likewise. * tree-ssa-sccvn.c (copy_reference_ops_from_ref): Likewise. * tree-ssa.c (maybe_rewrite_mem_ref_base): Likewise. (non_rewritable_mem_ref_base): Likewise. * tree-vect-data-refs.c (vect_check_gather_scatter): Likewise. * tree-vrp.c (vrp_prop::check_array_ref): Likewise. * varasm.c (decode_addr_const): Likewise. Co-Authored-By: Alan Hayward <alan.hayward@arm.com> Co-Authored-By: David Sherwood <david.sherwood@arm.com> From-SVN: r255930
2017-12-21poly_int: REG_ARGS_SIZERichard Sandiford1-1/+1
This patch adds new utility functions for manipulating REG_ARGS_SIZE notes and allows the notes to carry polynomial as well as constant sizes. The code was inconsistent about whether INT_MIN or HOST_WIDE_INT_MIN should be used to represent an unknown size. The patch uses HOST_WIDE_INT_MIN throughout. 2017-12-21 Richard Sandiford <richard.sandiford@linaro.org> Alan Hayward <alan.hayward@arm.com> David Sherwood <david.sherwood@arm.com> gcc/ * rtl.h (get_args_size, add_args_size_note): New functions. (find_args_size_adjust): Return a poly_int64 rather than a HOST_WIDE_INT. (fixup_args_size_notes): Likewise. Make the same change to the end_args_size parameter. * rtlanal.c (get_args_size, add_args_size_note): New functions. * builtins.c (expand_builtin_trap): Use add_args_size_note. * calls.c (emit_call_1): Likewise. * explow.c (adjust_stack_1): Likewise. * cfgcleanup.c (old_insns_match_p): Update use of find_args_size_adjust. * combine.c (distribute_notes): Track polynomial arg sizes. * dwarf2cfi.c (dw_trace_info): Change beg_true_args_size, end_true_args_size, beg_delay_args_size and end_delay_args_size from HOST_WIDE_INT to poly_int64. (add_cfi_args_size): Take the args_size as a poly_int64 rather than a HOST_WIDE_INT. (notice_args_size, notice_eh_throw, maybe_record_trace_start) (maybe_record_trace_start_abnormal, scan_trace, connect_traces): Track polynomial arg sizes. * emit-rtl.c (try_split): Use get_args_size. * recog.c (peep2_attempt): Likewise. * reload1.c (reload_as_needed): Likewise. * expr.c (find_args_size_adjust): Return the adjustment as a poly_int64 rather than a HOST_WIDE_INT. (fixup_args_size_notes): Change end_args_size from a HOST_WIDE_INT to a poly_int64 and change the return type in the same way. (emit_single_push_insn): Track polynomial arg sizes. Co-Authored-By: Alan Hayward <alan.hayward@arm.com> Co-Authored-By: David Sherwood <david.sherwood@arm.com> From-SVN: r255919
2017-12-20PR testsuite/83131 - c-c++/common/attr-nonstring-3 failure for strcmp tests ↵Martin Sebor1-249/+251
on PowerPC gcc/ChangeLog: PR testsuite/83131 * builtins.c (expand_builtin_strlen): Use get_callee_fndecl. (expand_builtin_strcmp): Call maybe_warn_nonstring_arg. (expand_builtin_strncmp): Same. gcc/testsuite/ChangeLog: PR testsuite/83131 * c-c++-common/attr-nonstring-4.c: New test. From-SVN: r255898
2017-12-20poly_int: get_object_alignment_2Richard Sandiford1-2/+11
This patch makes get_object_alignment_2 track polynomial offsets and sizes. The real work is done by get_inner_reference, but we then need to handle the alignment correctly. 2017-12-20 Richard Sandiford <richard.sandiford@linaro.org> Alan Hayward <alan.hayward@arm.com> David Sherwood <david.sherwood@arm.com> gcc/ * builtins.c (get_object_alignment_2): Track polynomial offsets and sizes. Update the alignment handling. Co-Authored-By: Alan Hayward <alan.hayward@arm.com> Co-Authored-By: David Sherwood <david.sherwood@arm.com> From-SVN: r255893