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2020-10-28c: Allow omitted parameter names for C2xJoseph Myers10-2/+68
C2x allows parameter names to be omitted in function definitions, as in C++; add support for this feature. As with other features that only result in previously rejected code being accepted, this feature is now accepted as an extension for previous standard versions, with a pedwarn-if-pedantic that is disabled by -Wno-c11-c2x-compat. The logic for avoiding unused-parameter warnings for unnamed parameters is in code shared between C and C++, so no changes are needed there. Bootstrapped with no regressions for x86_64-pc-linux-gnu. gcc/c/ 2020-10-28 Joseph Myers <joseph@codesourcery.com> * c-decl.c (store_parm_decls_newstyle): Use pedwarn_c11 not error_at for omitted parameter name. gcc/testsuite/ 2020-10-28 Joseph Myers <joseph@codesourcery.com> * gcc.dg/c11-parm-omit-1.c, gcc.dg/c11-parm-omit-2.c, gcc.dg/c11-parm-omit-3.c, gcc.dg/c11-parm-omit-4.c, gcc.dg/c2x-parm-omit-1.c, gcc.dg/c2x-parm-omit-2.c, gcc.dg/c2x-parm-omit-3.c, gcc.dg/c2x-parm-omit-4.c: New tests. * gcc.dg/noncompile/pr79758.c: Do not expect error for omitted parameter name.
2020-10-28c++: Make OMP UDR DECL_LOCAL_DECL_P earlierNathan Sidwell2-6/+15
I discovered that we were pushing an OMP UDR in a template before setting DECL_LOCAL_DECL. This caused the template machinery to give it some template info. It doesn't need that, and this changes the parser to set it earlier. We have to adjust instantiate_body to not try and access such a function's non-existant template_info. The access checks that we're no longer doing are the same as those we did on the containing function anyway. So nothing is lost. gcc/cp/ * parser.c (cp_parser_omp_declare_reduction): Set DECL_LOCAL_DECL_P before push_template_decl. * pt.c (instantiate_body): Nested fns do not have template_info.
2020-10-28VSX_EXTRACT fixCarl Love1-1/+1
2020-10-28 Carl Love <cel@us.ibm.com> gcc/ * config/rs6000/vsx.md(xxgenpcvm_<mode>_internal): Remove TARGET_64BIT.
2020-10-28dump when SLP analysis fails due to shared vectype mismatchRichard Biener1-1/+7
This adds another one. 2020-10-28 Richard Biener <rguenther@suse.de> * tree-vect-slp.c (vect_slp_analyze_node_operations_1): Dump when shared vectype update fails.
2020-10-28c++: Check constraints before instantiation from mark_used [PR95132]Patrick Palka2-10/+21
This makes mark_used check constraints of a function _before_ calling maybe_instantiate_decl, so that we don't try instantiating a function (as part of return type deduction) with unsatisfied constraints. gcc/cp/ChangeLog: PR c++/95132 * decl2.c (mark_used): Move up the constraints_satisfied_p check so that we check constraints before calling maybe_instantiate_decl. gcc/testsuite/ChangeLog: PR c++/95132 * g++.dg/cpp2a/concepts-fn7.C: New test.
2020-10-28c++: Refactor push_template_declNathan Sidwell1-17/+15
Sadly I need to wander into push_template_decl again. But here's a piece of RAII goodness first. gcc/cp/ * pt.c (push_template_decl): Refactor for some RAII.
2020-10-28testsuite: Correct requirements for vadsdu*, vslv and vsrv testcases.David Edelsohn16-32/+16
This patch renmoves extraneous dg-requirement restrictions on the testcases. gcc/testsuite/ChangeLog: * gcc.target/powerpc/vadsdu-0.c: Remove target. * gcc.target/powerpc/vadsdu-1.c: Remove target. * gcc.target/powerpc/vadsdu-2.c: Remove target. * gcc.target/powerpc/vadsdu-3.c: Remove target. * gcc.target/powerpc/vadsdu-4.c: Remove target. * gcc.target/powerpc/vadsdu-5.c: Remove target. * gcc.target/powerpc/vadsdub-1.c: Remove target. * gcc.target/powerpc/vadsdub-2.c: Remove target. * gcc.target/powerpc/vadsduh-1.c: Remove target. * gcc.target/powerpc/vadsduh-2.c: Remove target. * gcc.target/powerpc/vadsduw-1.c: Remove target. * gcc.target/powerpc/vadsduw-2.c: Remove target. * gcc.target/powerpc/vslv-0.c: Remove target. * gcc.target/powerpc/vslv-1.c: Remove target. * gcc.target/powerpc/vsrv-0.c: Remove target. * gcc.target/powerpc/vsrv-1.c: Remove target.
2020-10-28Ignore ignored operands in vect_get_and_check_slp_defsRichard Biener1-10/+26
This passes down skip_args to vect_get_and_check_slp_defs to skip ignored ops there, too and not fail SLP discovery. This fixes gcc.target/aarch64/sve/reduc_strict_5.c 2020-10-28 Richard Biener <rguenther@suse.de> * tree-vect-slp.c (vect_get_and_check_slp_defs): For skipped args just push NULLs and vect_uninitialized_def. (vect_build_slp_tree_2): Allocate skip_args for all ops and pass it down to vect_get_and_check_slp_defs.
2020-10-28testsuite: Correct requirements for byte-in-* testcases.David Edelsohn7-15/+8
commit 25ffd3d34e means we no longer define an overloaded __builtin_byte_in_set for -m32, so the more informative "__builtin_byte_in_set is not supported in this compiler configuration" is not reported. This patch changes byte-in-set-2.c to expect an implicit declaration warning. It also removes unnecessary target requirement for all byte-in-*.c tests and no longer skips AIX. gcc/testsuite/ChangeLog: 2020-10-28 David Edelsohn <dje.gcc@gmail.com> Alan Modra <amodra@gmail.com> * gcc.target/powerpc/byte-in-either-range-0.c: Remove target. * gcc.target/powerpc/byte-in-either-range-1.c: Remove target. * gcc.target/powerpc/byte-in-range-0.c: Remove target. * gcc.target/powerpc/byte-in-range-1.c: Remove target. * gcc.target/powerpc/byte-in-set-0.c: Remove target. * gcc.target/powerpc/byte-in-set-1.c: Remove target. * gcc.target/powerpc/byte-in-set-2.c: Remove target. Expect implicit declaration warning.
2020-10-28Fix gcc.dg/vect/bb-slp-5[89].cRichard Biener2-0/+2
I forgot a vect_double check. 2020-10-28 Richard Biener <rguenther@suse.de> * gcc.dg/vect/bb-slp-58.c: Require vect_double. * gcc.dg/vect/bb-slp-59.c: Likewise.
2020-10-28tree-optimization/97615 - avoid creating externals from patternsRichard Biener2-1/+25
The previous change missed to check for patterns again, the following corrects that. 2020-10-28 Richard Biener <rguenther@suse.de> PR tree-optimization/97615 * tree-vect-slp.c (vect_build_slp_tree_2): Do not build an external from pattern defs. * gcc.dg/vect/bb-slp-pr97615.c: New testcase.
2020-10-28Fix iteration over loads in SLP optimizeRichard Biener1-1/+1
I've made a typo when refactoring the iteration over all loads in the SLP graph. Fixed. 2020-10-28 Richard Biener <rguenther@suse.de> * tree-vect-slp.c (vect_optimize_slp): Fix iteration over all loads.
2020-10-28Change the way we split stores in BB vectorizationRichard Biener2-7/+35
The following fixes missed optimizations due to the strange way we split stores in BB vectorization. The solution is to split at the failure boundary and not re-align that to the initial piece chosen vector size. Also re-analyze any larger matching rest. 2020-10-28 Richard Biener <rguenther@suse.de> * tree-vect-slp.c (vect_build_slp_instance): Split the store group at the failure boundary and also re-analyze a large enough matching rest. * gcc.dg/vect/bb-slp-68.c: New testcase.
2020-10-28dump reason for throwing away SLP instanceRichard Biener1-1/+7
This adds dumping to vect_slp_analyze_node_alignment when it fails an SLP instance due to shared vector type conflicts. 2020-10-28 Richard Biener <rguenther@suse.de> * tree-vect-data-refs.c (vect_slp_analyze_node_alignment): Dump when vect_update_shared_vectype fails.
2020-10-28aarch64: Add vstN_lane_bf16 + vstNq_lane_bf16 intrinsicsAndrea Corallo10-49/+440
gcc/ChangeLog 2020-10-19 Andrea Corallo <andrea.corallo@arm.com> * config/aarch64/arm_neon.h (__ST2_LANE_FUNC, __ST3_LANE_FUNC) (__ST4_LANE_FUNC): Rename the macro generating the 'q' variants into __ST2Q_LANE_FUNC, __ST2Q_LANE_FUNC, __ST2Q_LANE_FUNC so they all can be undefed at the and of the file. (vst2_lane_bf16, vst2q_lane_bf16, vst3_lane_bf16, vst3q_lane_bf16) (vst4_lane_bf16, vst4q_lane_bf16): Add new intrinsics. gcc/testsuite/ChangeLog 2020-10-19 Andrea Corallo <andrea.corallo@arm.com> * gcc.target/aarch64/advsimd-intrinsics/arm-neon-ref.h (hbfloat16_t): Define type. (CHECK_FP): Make it working for bfloat types. * gcc.target/aarch64/advsimd-intrinsics/bf16_vstN_lane_1.c: New file. * gcc.target/aarch64/advsimd-intrinsics/bf16_vstN_lane_2.c: Likewise. * gcc.target/aarch64/advsimd-intrinsics/vst2_lane_bf16_indices_1.c: Likewise. * gcc.target/aarch64/advsimd-intrinsics/vst2q_lane_bf16_indices_1.c: Likewise. * gcc.target/aarch64/advsimd-intrinsics/vst3_lane_bf16_indices_1.c: Likewise. * gcc.target/aarch64/advsimd-intrinsics/vst3q_lane_bf16_indices_1.c: Likewise. * gcc.target/aarch64/advsimd-intrinsics/vst4_lane_bf16_indices_1.c: Likewise. * gcc.target/aarch64/advsimd-intrinsics/vst4q_lane_bf16_indices_1.c: Likewise.
2020-10-28aarch64: Add bfloat16 vldN_lane_bf16 + vldNq_lane_bf16 intrisicsAndrea Corallo9-57/+289
gcc/ChangeLog 2020-10-15 Andrea Corallo <andrea.corallo@arm.com> * config/aarch64/arm_neon.h (__LD2_LANE_FUNC, __LD3_LANE_FUNC) (__LD4_LANE_FUNC): Rename the macro generating the 'q' variants into __LD2Q_LANE_FUNC, __LD2Q_LANE_FUNC, __LD2Q_LANE_FUNC so they all can be undefed at the and of the file. (vld2_lane_bf16, vld2q_lane_bf16, vld3_lane_bf16, vld3q_lane_bf16) (vld4_lane_bf16, vld4q_lane_bf16): Add new intrinsics. gcc/testsuite/ChangeLog 2020-10-15 Andrea Corallo <andrea.corallo@arm.com> * gcc.target/aarch64/advsimd-intrinsics/bf16_vldN_lane_1.c: New testcase. * gcc.target/aarch64/advsimd-intrinsics/bf16_vldN_lane_2.c: Likewise. * gcc.target/aarch64/advsimd-intrinsics/vld2_lane_bf16_indices_1.c: Likewise. * gcc.target/aarch64/advsimd-intrinsics/vld2q_lane_bf16_indices_1.c: Likewise. * gcc.target/aarch64/advsimd-intrinsics/vld3_lane_bf16_indices_1.c: Likewise. * gcc.target/aarch64/advsimd-intrinsics/vld3q_lane_bf16_indices_1.c: Likewise. * gcc.target/aarch64/advsimd-intrinsics/vld4_lane_bf16_indices_1.c: Likewise. * gcc.target/aarch64/advsimd-intrinsics/vld4q_lane_bf16_indices_1.c: Likewise.
2020-10-28[PR97504] riscv needs wraplf for aux_long_long_float tooAlexandre Oliva1-0/+1
riscv is another platform on which GNAT maps Long_Long_Float to double rather than long double, so we have to explicitly avoid the long double intrinsics. for gcc/ada/ChangeLog PR ada/97504 * Makefile.rtl (LIBGNAT_TARGET_PAIRS> <riscv*-*-*>: Use wraplf version of Aux_Long_Long_Float.
2020-10-28openmp: Parsing and some semantic analysis of OpenMP allocate clauseJakub Jelinek17-57/+739
This patch adds parsing of OpenMP allocate clause, but still ignores it during OpenMP lowering where we should for privatized variables with allocate clause use the corresponding allocators rather than allocating them on the stack. 2020-10-28 Jakub Jelinek <jakub@redhat.com> gcc/ * tree-core.h (enum omp_clause_code): Add OMP_CLAUSE_ALLOCATE. * tree.h (OMP_CLAUSE_ALLOCATE_ALLOCATOR, OMP_CLAUSE_ALLOCATE_COMBINED): Define. * tree.c (omp_clause_num_ops, omp_clause_code_name): Add allocate clause. (walk_tree_1): Handle OMP_CLAUSE_ALLOCATE. * tree-pretty-print.c (dump_omp_clause): Likewise. * gimplify.c (gimplify_scan_omp_clauses, gimplify_adjust_omp_clauses, gimplify_omp_for): Likewise. * tree-nested.c (convert_nonlocal_omp_clauses, convert_local_omp_clauses): Likewise. * omp-low.c (scan_sharing_clauses): Likewise. gcc/c-family/ * c-pragma.h (enum pragma_omp_clause): Add PRAGMA_OMP_CLAUSE_ALLOCATE. * c-omp.c: Include bitmap.h. (c_omp_split_clauses): Handle OMP_CLAUSE_ALLOCATE. gcc/c/ * c-parser.c (c_parser_omp_clause_name): Handle allocate. (c_parser_omp_clause_allocate): New function. (c_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_ALLOCATE. (OMP_FOR_CLAUSE_MASK, OMP_SECTIONS_CLAUSE_MASK, OMP_PARALLEL_CLAUSE_MASK, OMP_SINGLE_CLAUSE_MASK, OMP_TASK_CLAUSE_MASK, OMP_TASKGROUP_CLAUSE_MASK, OMP_DISTRIBUTE_CLAUSE_MASK, OMP_TEAMS_CLAUSE_MASK, OMP_TARGET_CLAUSE_MASK, OMP_TASKLOOP_CLAUSE_MASK): Add PRAGMA_OMP_CLAUSE_ALLOCATE. * c-typeck.c (c_finish_omp_clauses): Handle OMP_CLAUSE_ALLOCATE. gcc/cp/ * parser.c (cp_parser_omp_clause_name): Handle allocate. (cp_parser_omp_clause_allocate): New function. (cp_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_ALLOCATE. (OMP_FOR_CLAUSE_MASK, OMP_SECTIONS_CLAUSE_MASK, OMP_PARALLEL_CLAUSE_MASK, OMP_SINGLE_CLAUSE_MASK, OMP_TASK_CLAUSE_MASK, OMP_TASKGROUP_CLAUSE_MASK, OMP_DISTRIBUTE_CLAUSE_MASK, OMP_TEAMS_CLAUSE_MASK, OMP_TARGET_CLAUSE_MASK, OMP_TASKLOOP_CLAUSE_MASK): Add PRAGMA_OMP_CLAUSE_ALLOCATE. * semantics.c (finish_omp_clauses): Handle OMP_CLAUSE_ALLOCATE. * pt.c (tsubst_omp_clauses): Likewise. gcc/testsuite/ * c-c++-common/gomp/allocate-1.c: New test. * c-c++-common/gomp/allocate-2.c: New test. * c-c++-common/gomp/clauses-1.c (omp_allocator_handle_t): New typedef. (foo, bar, baz): Add allocate clauses where allowed.
2020-10-28openmp: Implicitly discover declare target for variants of declare variant callsJakub Jelinek1-2/+21
This marks all variants of declare variant also declare target if the base functions are called directly in target regions or declare target functions. 2020-10-28 Jakub Jelinek <jakub@redhat.com> gcc/ * omp-offload.c (omp_declare_target_tgt_fn_r): Handle direct calls to declare variant base functions. libgomp/ * testsuite/libgomp.c/target-42.c: New test.
2020-10-28lto: LTO cgraph support for late declare variant resolution [PR96680]Jakub Jelinek8-7/+142
> I've tried to add the saving/restoring next to ipa refs saving/restoring, as > the declare variant alt stuff is kind of extension of those, unfortunately > following doesn't compile, because I need to also write or read a tree there > (ctx is a portion of DECL_ATTRIBUTES of the base function), but the ipa refs > write/read back functions don't have arguments that can be used for that. This patch adds the streaming out and in of those omp_declare_variant_alt hash table on the side data for the declare_variant_alt cgraph_nodes and treats for LTO purposes the declare_variant_alt nodes (which have no body) as if they contained a body that calls all the possible variants. After IPA all the calls to these magic declare_variant_alt calls are replaced with call to one of the variant depending on which one has the highest score in the context. 2020-10-28 Jakub Jelinek <jakub@redhat.com> PR lto/96680 gcc/ * lto-streamer.h (omp_lto_output_declare_variant_alt, omp_lto_input_declare_variant_alt): Declare variant. * symtab.c (symtab_node::get_partitioning_class): Return SYMBOL_DUPLICATE for declare_variant_alt nodes. * passes.c (ipa_write_summaries): Add declare_variant_alt to partition. * lto-cgraph.c (output_refs): Call omp_lto_output_declare_variant_alt on declare_variant_alt nodes. (input_refs): Call omp_lto_input_declare_variant_alt on declare_variant_alt nodes. * lto-streamer-out.c (output_function): Don't call collect_block_tree_leafs if DECL_INITIAL is error_mark_node. (lto_output): Call output_function even for declare_variant_alt nodes. * omp-general.c (omp_lto_output_declare_variant_alt, omp_lto_input_declare_variant_alt): New functions. gcc/lto/ * lto-common.c (lto_fixup_prevailing_decls): Don't use LTO_NO_PREVAIL on TREE_LIST's TREE_PURPOSE. * lto-partition.c (lto_balanced_map): Treat declare_variant_alt nodes like definitions. libgomp/ * testsuite/libgomp.c/declare-variant-1.c: New test.
2020-10-28wide-int: Fix up set_bit_largeJakub Jelinek1-2/+5
> >> wide_int new_lb = wi::set_bit (r.lower_bound (0), 127) > >> > >> and creates the value: > >> > >> p new_lb > >> {<wide_int_storage> = {val = {-65535, -1, 0}, len = 2, precision = 128}, > >> static is_sign_extended = true} > > > > This is non-canonical and so invalid, if the low HWI has the MSB set > > and the high HWI is -1, it should have been just > > val = {-65535}, len = 1, precision = 128} > > > > I guess the bug is that wi::set_bit_large doesn't call canonize. > > Yeah, looks like a micro-optimisation gone wrong. 2020-10-28 Jakub Jelinek <jakub@redhat.com> * wide-int.cc (wi::set_bit_large): Call canonize unless setting msb bit and clearing bits above it.
2020-10-28[RS6000] power10 scan-assembler testsAlan Modra8-8/+8
On power10 these are "dg-do run" tests, so need -save-temps for the assembler scanning. * gcc.target/powerpc/vsx-load-element-extend-char.c: Add -save-temps. * gcc.target/powerpc/vsx-load-element-extend-int.c: Likewise. * gcc.target/powerpc/vsx-load-element-extend-longlong.c: Likewise. * gcc.target/powerpc/vsx-load-element-extend-short.c: Likewise. * gcc.target/powerpc/vsx-store-element-truncate-char.c: Likewise. * gcc.target/powerpc/vsx-store-element-truncate-int.c: Likewise. * gcc.target/powerpc/vsx-store-element-truncate-longlong.c: Likewise. * gcc.target/powerpc/vsx-store-element-truncate-short.c: Likewise.
2020-10-28[RS6000] dg-do !compile and scan-assemblerAlan Modra12-16/+14
These tests never checked assembly, because .s files were not produced. One was looking for the wrong instructions. A typical error log PASS: gcc.target/powerpc/vec-permute-ext-runnable.c (test for excess errors) gcc.target/powerpc/vec-permute-ext-runnable.c output file does not exist UNRESOLVED: gcc.target/powerpc/vec-permute-ext-runnable.c scan-assembler-times \\mpermx\\M 10 * gcc.target/powerpc/vec-blend-runnable.c: Add save-temps. * gcc.target/powerpc/vec-insert-word-runnable.c: Likewise. * gcc.target/powerpc/vec-permute-ext-runnable.c: Likewise. * gcc.target/powerpc/vec-replace-word-runnable.c: Likewise. * gcc.target/powerpc/vec-splati-runnable.c: Likewise. * gcc.target/powerpc/vec-ternarylogic-3.c: Likewise. * gcc.target/powerpc/vec-ternarylogic-9.c: Likewise. * gcc.target/powerpc/vsx_mask-count-runnable.c: Likewise. * gcc.target/powerpc/vsx_mask-expand-runnable.c: Likewise. * gcc.target/powerpc/vsx_mask-extract-runnable.c: Likewise. * gcc.target/powerpc/vsx_mask-move-runnable.c: Likewise. * gcc.target/powerpc/vec-shift-double-runnable.c: Likewise, and correct assembly match.
2020-10-27Tweaks to ranger API routines.Andrew MacLeod2-44/+50
Remove the gcc_assert wrappers that contain statements that need to be executed. Audit routines to ensure range is set to UNDEFINED when false is returned. * gimple-range-gori.cc (gori_compute_cache::cache_stmt): Accumulate return values and only set cache when everything returned true. * gimple-range.cc (get_tree_range): Set the return range to UNDEFINED when the range isn't supported. (gimple_ranger::calc_stmt): Return varying if the type is supported, even if the stmt processing failed. False otherwise. (range_of_builtin_ubsan_call): Don't use gcc_assert. (range_of_builtin_call): Ditto. (gimple_ranger::range_of_cond_expr): Ditto. (gimple_ranger::range_of_expr): Ditto (gimple_ranger::range_on_entry): Ditto. (gimple_ranger::range_on_exit): Ditto. (gimple_ranger::range_on_edge): DItto. (gimple_ranger::range_of_stmt): Don't use gcc_assert, and initialize return value to UNDEFINED.
2020-10-28Daily bump.GCC Administrator9-1/+586
2020-10-27c: Allow duplicate C2x standard attributesJoseph Myers4-71/+14
N2557, accepted into C2x at the October WG14 meeting, removes the requirement that duplicates of standard attributes cannot appear within an attribute list (so allowing e.g. [[deprecated, deprecated]], where previously that was disallowed but [[deprecated]] [[deprecated]] was OK). Remove the code checking for this (standard attributes aren't in any released version of the C standard) and update tests accordingly. Bootstrapped with no regressions on x86_64-pc-linux-gnu. gcc/c/ 2020-10-27 Joseph Myers <joseph@codesourcery.com> * c-parser.c (c_parser_std_attribute_specifier): Allow duplicate standard attributes. gcc/testsuite/ 2020-10-27 Joseph Myers <joseph@codesourcery.com> * gcc.dg/c2x-attr-deprecated-4.c, gcc.dg/c2x-attr-fallthrough-4.c, gcc.dg/c2x-attr-maybe_unused-4.c: Allow duplicate attributes.
2020-10-27libgo: update to Go 1.15.3 releaseIan Lance Taylor1-1/+1
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/265717
2020-10-27Fix PR97497Andreas Krebbel2-0/+43
This works around a limitation of gcse with handling of partially clobbered registers. With this patch our GOT pointer register r12 is not marked as partially clobbered anymore for the -m31 -mzarch -fpic combination. This is correct since all the bits in r12 we actually care about are in fact preserved. gcc/ChangeLog: PR rtl-optimization/97497 * config/s390/s390.c (s390_hard_regno_call_part_clobbered): Do not return true for r12 when -fpic is used. gcc/testsuite/ChangeLog: * gcc.target/s390/pr97497.c: New test.
2020-10-27PR fortran/97491 - Wrong restriction for VALUE arguments of pure proceduresHarald Anlauf2-0/+17
A dummy argument with the VALUE attribute may be redefined in a PURE or ELEMENTAL procedure. Adjust the associated purity check. gcc/fortran/ChangeLog: * resolve.c (gfc_impure_variable): A dummy argument with the VALUE attribute may be redefined without making a procedure impure. gcc/testsuite/ChangeLog: * gfortran.dg/value_8.f90: New test.
2020-10-27PPC testsuite fixesCarl Love5-11/+15
2020-10-27 Carl Love <cel@us.ibm.com> gcc/testsuite * gcc.target/powerpc/vec-blend-runnable.c: Change #ifdef DEBUG to #if DEBUG. Fix printf line so it is less then 80 characters long. * gcc.target/powerpc/vec-insert-word-runnable.c: Change #ifdef DEBUG to #if DEBUG. * gcc.target/powerpc/vec-permute-ext-runnable.c: Change #ifdef DEBUG to #if DEBUG. * gcc.target/powerpc/vec-replace-word-runnable.c: Change #ifdef DEBUG to #if DEBUG. Fix printf lines so they are less then 80 characters long. * gcc.target/powerpc/vec-shift-double-runnable.c: Change #ifdef DEBUG to #if DEBUG.
2020-10-27compiler, go/internal/gccgoimporter: export notinheap annotationIan Lance Taylor5-9/+28
This is the gofrontend version of https://golang.org/cl/259297. This is required now because that change is in the 1.15.3 release. This requires changing the go/internal/gccgoimporter package, to skip the new annotation. This change will need to be ported to the gc and x/tools repos. For golang/go#41761 Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/265258
2020-10-27compiler: remove unused Type::in_heap_ member variableIan Lance Taylor2-3/+1
This member variable was added in https://golang.org/cl/46490, but it was never used. The code uses Named_type::in_heap_ instead. Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/265257
2020-10-27c++: Kill nested_udtsNathan Sidwell6-298/+25
During the implementation of modules I added myself a note to implement nested_udt handling. It wasn't obvious to me what they were for and nothing seemed to be broken in ignoring them. I figured something would eventually pop up and I'd add support. Nothing popped up. Investigating on trunk discovered 3 places where we look at the nested-udts. I couldn't figure how the one in lookup_field_r was needed -- surely the regular lookup would find the type. It turned out that code was unreachable. So we can delete it. Next in do_type_instantiation, we walk the nested-utd table instantiating types. But those types are also on the TYPE_FIELDS list, which we've just iterated over. So I can move the handling into that loop. The final use is in handling structs that have a typedef name for linkage purposes. Again, we can just iterate over TYPE_FIELDS. (As commented, we probably don't need to do even that, as a DR, whose number I forget, requires such structs to only have C-like things in them. But I didn't go that far. Having removed all the uses of nested-udts, I can remove their creation from name-lookup, and as the only instance of a binding_table object, we can remove all that code too. gcc/cp/ * cp-tree.h (struct lang_type): Delete nested_udts field. (CLASSTYPE_NESTED_UTDS): Delete. * name-lookup.h (binding_table, binding_entry): Delete typedefs. (bt_foreach_proc): Likewise. (struct binding_entry_s): Delete. (SCOPE_DEFAULT_HT_SIZE, CLASS_SCOPE_HT_SIZE) (NAMESPACE_ORDINARY_HT_SIZE, NAMESPACE_STD_HT_SIZE) (GLOBAL_SCOPE_HT_SIZE): Delete. (binding_table_foreach, binding_table_find): Delete declarations. * name-lookup.c (ENTRY_INDEX): Delete. (free_binding_entry): Delete. (binding_entry_make, binding_entry_free): Delete. (struct binding_table_s): Delete. (binding_table_construct, binding_table_free): Delete. (binding_table_new, binding_table_expand): Delete. (binding_table_insert, binding_table_find): Delete. (binding_table_foreach): Delete. (maybe_process_template_type_declaration): Delete CLASSTYPE_NESTED_UTDS insertion. (do_pushtag): Likewise. * decl2.c (bt_reset_linkage_1): Fold into reset_type_linkage_1. (reset_type_linkage_2, bt_reset_linkage_2): Fold into reset_type_linkage. * pt.c (instantiate_class_template_1): Delete NESTED_UTDs comment. (bt_instantiate_type_proc): Delete. (do_type_instantiation): Instantiate implicit typedef fields. Delete NESTED_UTD walk. * search.c (lookup_field_r): Delete unreachable NESTED_UTD search.
2020-10-27c++: Small cleanup for do_type_instantiationNathan Sidwell2-56/+41
In working on a bigger cleanup I noticed some opportunities to make do_type_instantiation's control flow simpler. gcc/cp/ * parser.c (cp_parser_explicit_instantiation): Refactor some RAII. * pt.c (bt_instantiate_type_proc): DATA is the tree, pass type to do_type_instantiation. (do_type_instantiation): Require T to be a type. Refactor for some RAII.
2020-10-27AArch64: Fix overflow in memcopy expansion on aarch64.Tamar Christina2-4/+25
Currently the inline memcpy expansion code for AArch64 is using a signed int to hold the number of elements to copy. When you giver give it a value larger than INT_MAX it will overflow. The overflow causes the maximum number of instructions we want to expand to check to fail since this assumes an unsigned number. This patch changes the maximum isns arithmetic to be unsigned HOST_WIDE_INT. note that the calculation *must* remained signed as the memcopy issues overlapping unaligned copies. This means the pointer must be moved back and so you need signed arithmetic. gcc/ChangeLog: PR target/97535 * config/aarch64/aarch64.c (aarch64_expand_cpymem): Use unsigned arithmetic in check. gcc/testsuite/ChangeLog: PR target/97535 * gcc.target/aarch64/pr97535.c: New test.
2020-10-27aarch64: Add vcopy(q)__lane(q)_bf16 intrinsicsAndrea Corallo10-0/+206
gcc/ChangeLog 2020-10-20 Andrea Corallo <andrea.corallo@arm.com> * config/aarch64/arm_neon.h (vcopy_lane_bf16, vcopyq_lane_bf16) (vcopyq_laneq_bf16, vcopy_laneq_bf16): New intrinsics. gcc/testsuite/ChangeLog 2020-10-20 Andrea Corallo <andrea.corallo@arm.com> * gcc.target/aarch64/advsimd-intrinsics/bf16_vect_copy_lane_1.c: New test. * gcc.target/aarch64/advsimd-intrinsics/vcopy_lane_bf16_indices_1.c: Likewise. * gcc.target/aarch64/advsimd-intrinsics/vcopy_lane_bf16_indices_2.c: Likewise. * gcc.target/aarch64/advsimd-intrinsics/vcopy_laneq_bf16_indices_1.c: Likewise. * gcc.target/aarch64/advsimd-intrinsics/vcopy_laneq_bf16_indices_2.c: Likewise. * gcc.target/aarch64/advsimd-intrinsics/vcopyq_lane_bf16_indices_1.c: Likewise. * gcc.target/aarch64/advsimd-intrinsics/vcopyq_lane_bf16_indices_2.c: Likewise. * gcc.target/aarch64/advsimd-intrinsics/vcopyq_laneq_bf16_indices_1.c: Likewise. * gcc.target/aarch64/advsimd-intrinsics/vcopyq_laneq_bf16_indices_2.c: Likewise.
2020-10-27Extract VX_CPU_PREFIX up into config/vxworks.hOlivier Hainque2-12/+12
Move VX_CPU_PREFIX to a place where it can be reused by multiple target ports. 2020-10-21 Olivier Hainque <hainque@adacore.com> gcc/ * config/vxworks.h (VX_CPU_PREFIX): #define here. * config/rs6000/vxworks.h: Remove #definition.
2020-10-27Fix glitch on VX_CPU selection for E6500Olivier Hainque1-1/+1
Proper macro name is PPCE6500, not E6500. Introduced accidentally during a pre-commit minor rearrangement. 2020-10-27 Olivier Hainque <hainque@adacore.com> gcc/ * config/rs6000/vxworks.h (CPP_SPEC): Fix macro definition for -mcpu=e6500.
2020-10-27Fix BB store group splitting group size computeRichard Biener2-1/+17
This fixes a mistake in the previous change in this area to what was desired - figure the largest power-of-two group size fitting in the matching area. 2020-10-27 Richard Biener <rguenther@suse.de> * tree-vect-slp.c (vect_build_slp_instance): Use ceil_log2 to compute maximum group-size. * gcc.dg/vect/bb-slp-67.c: New testcase.
2020-10-27Fix ipa-modref signature updatesJan Hubicka2-39/+59
PR ipa/97586 * ipa-modref-tree.h (modref_tree::remap_params): New member function. * ipa-modref.c (modref_summaries_lto::duplicate): Check that optimization summaries are not duplicated. (remap_arguments): Remove. (modref_transform): Rename to ... (update_signature): ... this one; handle also lto summary. (pass_ipa_modref::execute): Update signatures here rather than in transform hook.
2020-10-27Add tests for PR92942 - missing -Wstringop-overflow for allocations with a ↵Martin Sebor2-0/+254
negative lower bound size. gcc/testsuite/ChangeLog: PR middle-end/92942 * gcc.dg/Wstringop-overflow-56.c: New test. * gcc.dg/Wstringop-overflow-57.c: Same.
2020-10-27Remove .s file.Martin Sebor1-271/+0
gcc/testsuite/ChangeLog: * gcc.dg/Wstringop-overflow-44.s: Remove.
2020-10-27Combine logical OR ranges properly. pr97567Andrew MacLeod1-2/+2
update testcase to work on 32 bit targets gcc/testsuite * gcc.dg/pr97567.c: Update to work with 32 bit targets.
2020-10-27Adjust BB vectorization function splittingRichard Biener3-21/+23
This adjusts the condition when to split at control altering stmts, only when there's a definition. It also removes the only use of --param slp-max-insns-in-bb which a previous change left doing nothing (but repeatedly print a message for each successive instruction...). 2020-10-27 Richard Biener <rguenther@suse.de> * tree-vect-slp.c (vect_slp_bbs): Remove no-op slp-max-insns-in-bb check. (vect_slp_function): Dump when splitting the function. Adjust the split condition for control altering stmts. * params.opt (-param=slp-max-insns-in-bb): Remove. * doc/invoke.texi (-param=slp-max-insns-in-bb): Likewise.
2020-10-27analyzer: don't assume extern const vars are zero-initialized [PR97568]David Malcolm3-2/+35
gcc/analyzer/ChangeLog: PR analyzer/97568 * region-model.cc (region_model::get_initial_value_for_global): Move check that !DECL_EXTERNAL from here to... * region.cc (decl_region::get_svalue_for_initializer): ...here, using it to reject zero initialization. gcc/testsuite/ChangeLog: PR analyzer/97568 * gcc.dg/analyzer/pr97568.c: New test.
2020-10-27analyzer: Change cast from long to intptr_t [PR96608]Markus Böck1-1/+1
Casting to intptr_t states the intent of an integer to pointer cast more clearly and ensures that the cast causes no loss of precision on any platforms. LLP64 platforms eg. have a long value of 4 bytes and pointer values of 8 bytes which may even cause compiler errors. gcc/analyzer/ChangeLog: PR analyzer/96608 * store.h (hash): Cast to intptr_t instead of long
2020-10-27analyzer: eliminate non-deterministic behaviorDavid Malcolm5-31/+102
This patch is a followup to the previous one, eliminating non-determinism in the behavior of the analyzer (rather than just in the logs), by sorting whenever the result previously depended on pointer values. Tested as per the previous patch. gcc/analyzer/ChangeLog: * constraint-manager.cc (svalue_cmp_by_ptr): Delete. (equiv_class::canonicalize): Use svalue::cmp_ptr_ptr instead. (equiv_class_cmp): Eliminate pointer comparison. * diagnostic-manager.cc (dedupe_key::comparator): If they are at the same location, also compare epath ength and pending_diagnostic kind. * engine.cc (readability_comparator): If two path_vars have the same readability, then impose an arbitrary ordering on them. (worklist::key_t::cmp): If two points have the same plan ordering, continue the comparison. Call sm_state_map::cmp rather than comparing hash values. * program-state.cc (sm_state_map::entry_t::cmp): New. (sm_state_map::cmp): New. * program-state.h (sm_state_map::entry_t::cmp): New decl. (sm_state_map::elements): New. (sm_state_map::cmp): New.
2020-10-27analyzer: eliminate non-determinism in logsDavid Malcolm13-65/+493
This patch and the followup eliminate various forms of non-determinism in the analyzer due to changing pointer values. This patch fixes churn seen when diffing analyzer logs. The patch avoids embedding pointers in various places, and adds sorting when dumping hash_set and hash_map for various analyzer types. Doing so requires implementing a way to sort svalue instances, and assigning UIDs to gimple statements. Tested both patches together via a script that runs a testcase 100 times, and then using diff and md5sum to verify that the results are consistent in the face of address space randomization: FILENAME=$1 rm $FILENAME.* for i in `seq 1 100`; do echo "iteration: $i" ./xgcc -B. -fanalyzer -c ../../src/gcc/testsuite/gcc.dg/analyzer/$FILENAME \ --Wanalyzer-too-complex \ -fdump-analyzer-supergraph \ -fdump-analyzer-exploded-graph \ -fdump-analyzer \ -fdump-noaddr \ -fdump-analyzer-exploded-nodes-2 mv $FILENAME.supergraph.dot $FILENAME.$i.supergraph.dot mv $FILENAME.analyzer.txt $FILENAME.$i.analyzer.txt mv $FILENAME.supergraph-eg.dot $FILENAME.$i.supergraph-eg.dot mv $FILENAME.eg.txt $FILENAME.$i.eg.txt mv $FILENAME.eg.dot $FILENAME.$i.eg.dot done gcc/analyzer/ChangeLog: * engine.cc (setjmp_record::cmp): New. (supernode_cluster::dump_dot): Avoid embedding pointer in cluster name. (supernode_cluster::cmp_ptr_ptr): New. (function_call_string_cluster::dump_dot): Avoid embedding pointer in cluster name. Sort m_map when dumping child clusters. (function_call_string_cluster::cmp_ptr_ptr): New. (root_cluster::dump_dot): Sort m_map when dumping child clusters. * program-point.cc (function_point::cmp): New. (function_point::cmp_ptr): New. * program-point.h (function_point::cmp): New decl. (function_point::cmp_ptr): New decl. * program-state.cc (sm_state_map::print): Sort the values. Guard the printing of pointers with !flag_dump_noaddr. (program_state::prune_for_point): Sort the regions. (log_set_of_svalues): Sort the values. Guard the printing of pointers with !flag_dump_noaddr. * region-model-manager.cc (log_uniq_map): Sort the values. * region-model-reachability.cc (dump_set): New function template. (reachable_regions::dump_to_pp): Use it. * region-model.h (svalue::cmp_ptr): New decl. (svalue::cmp_ptr_ptr): New decl. (setjmp_record::cmp): New decl. (placeholder_svalue::get_name): New accessor. (widening_svalue::get_point): New accessor. (compound_svalue::get_map): New accessor. (conjured_svalue::get_stmt): New accessor. (conjured_svalue::get_id_region): New accessor. (region::cmp_ptrs): Rename to... (region::cmp_ptr_ptr): ...this. * region.cc (region::cmp_ptrs): Rename to... (region::cmp_ptr_ptr): ...this. * state-purge.cc (state_purge_per_ssa_name::state_purge_per_ssa_name): Sort m_points_needing_name when dumping. * store.cc (concrete_binding::cmp_ptr_ptr): New. (symbolic_binding::cmp_ptr_ptr): New. (binding_map::cmp): New. (get_sorted_parent_regions): Update for renaming of region::cmp_ptrs to region::cmp_ptr_ptr. (store::dump_to_pp): Likewise. (store::to_json): Likewise. (store::can_merge_p): Sort the base regions before considering them. * store.h (concrete_binding::cmp_ptr_ptr): New decl. (symbolic_binding::cmp_ptr_ptr): New decl. (binding_map::cmp): New decl. * supergraph.cc (supergraph::supergraph): Assign UIDs to the gimple stmts. * svalue.cc (cmp_cst): New. (svalue::cmp_ptr): New. (svalue::cmp_ptr_ptr): New.
2020-10-27analyzer: fix param "analyzer-max-enodes-per-program-point"David Malcolm1-1/+1
This was effectively checking for one beyond the limit, rather than the limit itself. Seen when fixing PR analyzer/97514. gcc/analyzer/ChangeLog: * engine.cc (exploded_graph::get_or_create_node): Fix off-by-one when imposing param_analyzer_max_enodes_per_program_point limit.
2020-10-27analyzer: implement region_model::get_representative_path_var for labelsDavid Malcolm2-1/+6
This fixes an ICE seen e.g. with gcc.dg/analyzer/data-model-16.c when enabling -fdump-analyzer. gcc/analyzer/ChangeLog: * region-model.cc (region_model::get_representative_path_var): Implement case RK_LABEL. * region-model.h (label_region::get_label): New accessor.
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