re PR c++/91024 (-Wimplicit-fallthrough is confused by likely/unlikely attributes)

PR c++/91024
* gimplify.c (collect_fallthrough_labels): Ignore GIMPLE_PREDICT
statements.

* g++.dg/warn/Wimplicit-fallthrough-4.C: New test.

From-SVN: r272764

re PR tree-optimization/91010 (ICE: Segmentation fault (in location_wrapper_p))

PR tree-optimization/91010
* tree-vect-stmts.c (scan_operand_equal_p): If offset1 == offset2,
return true.  Otherwise, don't call operand_equal_p if offset1 or
offset2 is NULL and just return false.

* g++.dg/vect/simd-10.cc: New test.

From-SVN: r272763

[Darwin, PPC] Allow the user to override the use of hard float in kexts.

The default for the kernel is soft-float, however a user writing a kernel
extension might want to make use of hard float.  This change makes
" -mkernel -mhard-float " work as expected.

2019-06-27  Iain Sandoe  <iain@sandoe.co.uk>

* config/rs6000/rs6000.c (darwin_rs6000_override_options): Honour
user-specified float mode choice for kernel mode code.

From-SVN: r272760

[Darwin, PPC] Correct whitespace in specs.

A recent merge dropped whitespace in the endfile specs, which affects
transactional memory cases.

2019-06-27  Iain Sandoe  <iain@sandoe.co.uk>

* config/rs6000/darwin.h (ENDFILE_SPEC): Correct whitespace in the
spec.

From-SVN: r272759

[Darwin, PPC] Do not use longcall for 64b code.

The linker [ld64] that supports 64Bit does not need the JBSR longcall
optimisation, and will not work with the most generic case (where the
symbol is undefined external, but there is no symbl stub).  So switch
the longcall option off.  ld64 will generate branch islands as needed.

2019-06-27  Iain Sandoe  <iain@sandoe.co.uk>

* config/rs6000/rs6000.c (darwin_rs6000_override_options): Do not
use longcall for 64b code.

From-SVN: r272758

re PR fortran/90987 (Wrong error message with variables named "COMMON*")

2019-06-27  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/90987
* match.c (gfc_match_common): Adjust parsing of fixed and free form
source code containing, e.g., COMMONI.

2019-06-27  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/90987
* gfortran.dg/common_1.f: new test.
* gfortran.dg/common_26.f90: Ditto.

From-SVN: r272756

builtins.c (get_memory_rtx): Fix comment.

2019-06-27  Aaron Sawdey <acsawdey@linux.ibm.com>

* builtins.c (get_memory_rtx): Fix comment.
* optabs.def (movmem_optab): Change to cpymem_optab.
* expr.c (emit_block_move_via_cpymem): Change movmem to cpymem.
(emit_block_move_hints): Change movmem to cpymem.
* defaults.h: Change movmem to cpymem.
* targhooks.c (get_move_ratio): Change movmem to cpymem.
(default_use_by_pieces_infrastructure_p): Ditto.
* config/aarch64/aarch64-protos.h: Change movmem to cpymem.
* config/aarch64/aarch64.c (aarch64_expand_movmem): Change movmem
to cpymem.
* config/aarch64/aarch64.h: Change movmem to cpymem.
* config/aarch64/aarch64.md (movmemdi): Change name to cpymemdi.
* config/alpha/alpha.h: Change movmem to cpymem in comment.
* config/alpha/alpha.md (movmemqi, movmemdi, *movmemdi_1): Change
movmem to cpymem.
* config/arc/arc-protos.h: Change movmem to cpymem.
* config/arc/arc.c (arc_expand_movmem): Change movmem to cpymem.
* config/arc/arc.h: Change movmem to cpymem in comment.
* config/arc/arc.md (movmemsi): Change movmem to cpymem.
* config/arm/arm-protos.h: Change movmem to cpymem in names.
* config/arm/arm.c (arm_movmemqi_unaligned, arm_gen_movmemqi,
gen_movmem_ldrd_strd, thumb_expand_movmemqi) Change movmem to cpymem.
* config/arm/arm.md (movmemqi): Change movmem to cpymem.
* config/arm/thumb1.md (movmem12b, movmem8b): Change movmem to cpymem.
* config/avr/avr-protos.h: Change movmem to cpymem.
* config/avr/avr.c (avr_adjust_insn_length, avr_emit_movmemhi,
avr_out_movmem): Change movmem to cpymem.
* config/avr/avr.md (movmemhi, movmem_<mode>, movmemx_<mode>):
Change movmem to cpymem.
* config/bfin/bfin-protos.h: Change movmem to cpymem.
* config/bfin/bfin.c (single_move_for_movmem, bfin_expand_movmem):
Change movmem to cpymem.
* config/bfin/bfin.h: Change movmem to cpymem in comment.
* config/bfin/bfin.md (movmemsi): Change name to cpymemsi.
* config/c6x/c6x-protos.h: Change movmem to cpymem.
* config/c6x/c6x.c (c6x_expand_movmem): Change movmem to cpymem.
* config/c6x/c6x.md (movmemsi): Change name to cpymemsi.
* config/frv/frv.md (movmemsi): Change name to cpymemsi.
* config/ft32/ft32.md (movmemsi): Change name to cpymemsi.
* config/h8300/h8300.md (movmemsi): Change name to cpymemsi.
* config/i386/i386-expand.c (expand_set_or_movmem_via_loop,
expand_set_or_movmem_via_rep, expand_movmem_epilogue,
expand_setmem_epilogue_via_loop, expand_set_or_cpymem_prologue,
expand_small_cpymem_or_setmem,
expand_set_or_cpymem_prologue_epilogue_by_misaligned_moves,
expand_set_or_cpymem_constant_prologue,
ix86_expand_set_or_cpymem): Change movmem to cpymem.
* config/i386/i386-protos.h: Change movmem to cpymem.
* config/i386/i386.h: Change movmem to cpymem in comment.
* config/i386/i386.md (movmem<mode>): Change name to cpymem.
(setmem<mode>): Change expansion function name.
* config/lm32/lm32.md (movmemsi): Change name to cpymemsi.
* config/m32c/blkmov.md (movmemhi, movmemhi_bhi_op, movmemhi_bpsi_op,
movmemhi_whi_op, movmemhi_wpsi_op): Change movmem to cpymem.
* config/m32c/m32c-protos.h: Change movmem to cpymem.
* config/m32c/m32c.c (m32c_expand_movmemhi): Change movmem to cpymem.
* config/m32r/m32r.c (m32r_expand_block_move): Change movmem to cpymem.
* config/m32r/m32r.md (movmemsi, movmemsi_internal): Change movmem
to cpymem.
* config/mcore/mcore.md (movmemsi): Change name to cpymemsi.
* config/microblaze/microblaze.c: Change movmem to cpymem in comment.
* config/microblaze/microblaze.md (movmemsi): Change name to cpymemsi.
* config/mips/mips.c (mips_use_by_pieces_infrastructure_p):
Change movmem to cpymem.
* config/mips/mips.h: Change movmem to cpymem.
* config/mips/mips.md (movmemsi): Change name to cpymemsi.
* config/nds32/nds32-memory-manipulation.c
(nds32_expand_movmemsi_loop_unknown_size,
nds32_expand_movmemsi_loop_known_size, nds32_expand_movmemsi_loop,
nds32_expand_movmemsi_unroll,
nds32_expand_movmemsi): Change movmem to cpymem.
* config/nds32/nds32-multiple.md (movmemsi): Change name to cpymemsi.
* config/nds32/nds32-protos.h: Change movmem to cpymem.
* config/pa/pa.c (compute_movmem_length): Change movmem to cpymem.
(pa_adjust_insn_length): Change call to compute_movmem_length.
* config/pa/pa.md (movmemsi, movmemsi_prereload, movmemsi_postreload,
movmemdi, movmemdi_prereload,
movmemdi_postreload): Change movmem to cpymem.
* config/pdp11/pdp11.md (movmemhi, movmemhi1,
movmemhi_nocc, UNSPEC_MOVMEM): Change movmem to cpymem.
* config/riscv/riscv.c: Change movmem to cpymem in comment.
* config/riscv/riscv.h: Change movmem to cpymem.
* config/riscv/riscv.md: (movmemsi) Change name to cpymemsi.
* config/rs6000/rs6000.md: (movmemsi) Change name to cpymemsi.
* config/rx/rx.md: (UNSPEC_MOVMEM, movmemsi, rx_movmem): Change
movmem to cpymem.
* config/s390/s390-protos.h: Change movmem to cpymem.
* config/s390/s390.c (s390_expand_movmem, s390_expand_setmem,
s390_expand_insv): Change movmem to cpymem.
* config/s390/s390.md (movmem<mode>, movmem_short, *movmem_short,
movmem_long, *movmem_long, *movmem_long_31z): Change movmem to cpymem.
* config/sh/sh.md (movmemsi): Change name to cpymemsi.
* config/sparc/sparc.h: Change movmem to cpymem in comment.
* config/vax/vax-protos.h (vax_output_movmemsi): Remove prototype
for nonexistent function.
* config/vax/vax.h: Change movmem to cpymem in comment.
* config/vax/vax.md (movmemhi, movmemhi1): Change movmem to cpymem.
* config/visium/visium.h: Change movmem to cpymem in comment.
* config/visium/visium.md (movmemsi): Change name to cpymemsi.
* config/xtensa/xtensa.md (movmemsi): Change name to cpymemsi.
* doc/md.texi: Change movmem to cpymem and update description to match.
* doc/rtl.texi: Change movmem to cpymem.
* target.def (use_by_pieces_infrastructure_p): Change movmem to cpymem.
        * doc/tm.texi: Regenerate.

From-SVN: r272755

rs6000.c (rs6000_option_override_internal): Enable -fvariable-expansion-in-unroller by default.

2019-06-27  Bill Schmidt  <wschmidt@linux.ibm.com>

* config/rs6000/rs6000.c (rs6000_option_override_internal): Enable
-fvariable-expansion-in-unroller by default.
* doc/invoke.texi (-fvariable-expansion-in-unroller): Document new
default for Power.

From-SVN: r272754

revert: config.gcc (powerpc-ibm-aix*): Define target_gtfiles.

        Revert
        2019-06-26  David Edelsohn  <dje.gcc@gmail.com>
        * config.gcc (powerpc-ibm-aix*): Define target_gtfiles.

        * config.gcc(rs6000-*-*): Define target_gtfiles.

From-SVN: r272753

lto-common.c: tree-pretty-print.h

* lto-common.c: tree-pretty-print.h
(type_streaming_finished): New static var.
(gimple_register_canonical_type_1): Return updated hash; handle ODR
types.
(iterative_hash_canonical_type): Update use of
gimple_register_canonical_type_1.

From-SVN: r272750

class.c (layout_class_type): Set TYPE_CXX_ODR_P for as-base type copy.

* class.c (layout_class_type): Set TYPE_CXX_ODR_P for as-base
type copy.

* ipa-devirt.c (odr_type_d): Add tbaa_enabled flag.
(add_type_duplicate): When odr hash is not allocated, to nothing.
(odr_based_tbaa_p): New function.
(set_type_canonical_for_odr_type): New function.
* ipa-utils.h (enable_odr_based_tbaa, odr_based_tbaa_p,
set_type_canonical_for_odr_type): New.
* tree.c (gimple_canonical_types_compatible_p): ODR types with
ODR based TBAA are not equivalent to non-ODR types.

* lto-common.c: Include demangle.h and tree-pretty-print.h
(type_streaming_finished): New static var.
(gimple_register_canonical_type_1): Return updated hash; handle ODR
types.
(iterative_hash_canonical_type): Update use of
gimple_register_canonical_type_1.

* g++.dg/lto/alias-2_0.C: New testcase.
* g++.dg/lto/alias-2_1.C: New testcase.

From-SVN: r272749

Fix various issues seen with clang-static-analyzer.

2019-06-27  Martin Liska  <mliska@suse.cz>

PR tree-optimization/90974
PR rtl-optimization/90975
PR rtl-optimization/90976
PR target/91016
PR tree-optimization/91017
* config/i386/i386-expand.c (ix86_expand_rounddf_32): Remove
unused tmp.
* lra.c (lra_set_insn_recog_data): Remove a leftover from
initial commit of IRA.
* optabs.c (expand_twoval_binop): Use xop0 and xop1 instead
of op0 and op1.
* tree-vect-loop.c (vect_create_epilog_for_reduction):
Remove unused mode1.
* tree-vect-stmts.c (vectorizable_call): Remove dead assignment
to new_stmt_info.

From-SVN: r272746

re PR target/90991 (_mm_loadu_ps instrinsic translates to vmovaps in combination with _mm512_insertf32x4)

PR target/90991
* config/i386/sse.md (avx_vec_concat<mode>): Use nonimmediate_operand
instead of register_operand for operands[1], add m to its constraints
if operands[2] uses "C" constraint.  Ensure in condition that if
operands[2] is not 0, then operands[1] is not a MEM.  For last two
alternatives, use unaligned loads instead of aligned if operands[1] is
misaligned_operand.

* gcc.target/i386/avx2-pr90991-1.c: New test.
* gcc.target/i386/avx512dq-pr90991-2.c: New test.

From-SVN: r272745

Remove quite obvious dead assignments.

2019-06-27  Martin Liska  <mliska@suse.cz>

* asan.c (asan_emit_allocas_unpoison): Remove obviously
dead assignments.
* bt-load.c (move_btr_def): Likewise.
* builtins.c (expand_builtin_apply_args_1): Likewise.
(expand_builtin_apply): Likewise.
* cfgexpand.c (expand_asm_stmt): Likewise.
(construct_init_block): Likewise.
* cfghooks.c (verify_flow_info): Likewise.
* cfgloopmanip.c (remove_path): Likewise.
* cfgrtl.c (rtl_verify_bb_layout): Likewise.
* cgraph.c (cgraph_node::set_pure_flag): Likewise.
* combine.c (simplify_if_then_else): Likewise.
* config/i386/i386.c (ix86_setup_incoming_vararg_bounds): Likewise.
(choose_basereg): Likewise.
(ix86_expand_prologue): Likewise.
(ix86_preferred_output_reload_class): Likewise.
* cselib.c (cselib_record_sets): Likewise.
* df-scan.c (df_scan_alloc): Likewise.
* dojump.c (do_jump_by_parts_greater_rtx): Likewise.
* early-remat.c (early_remat::record_equiv_candidates): Likewise.
* emit-rtl.c (try_split): Likewise.
* graphite-scop-detection.c (assign_parameter_index_in_region): Likewise.
* ipa-cp.c (cgraph_edge_brings_all_agg_vals_for_node): Likewise.
* ira-color.c (setup_profitable_hard_regs): Likewise.
* ira.c (rtx_moveable_p): Likewise.
* lra-eliminations.c (eliminate_regs_in_insn): Likewise.
* read-rtl.c (read_subst_mapping): Likewise.
* regrename.c (scan_rtx): Likewise.
* reorg.c (fill_slots_from_thread): Likewise.
* tree-inline.c (tree_function_versioning): Likewise.
* tree-ssa-reassoc.c (optimize_ops_list): Likewise.
* tree-ssa-sink.c (statement_sink_location): Likewise.
* tree-ssa-threadedge.c (thread_across_edge): Likewise.
* tree-vect-loop.c (vect_get_loop_niters): Likewise.
(vect_create_epilog_for_reduction): Likewise.
* tree.c (build_nonstandard_integer_type): Likewise.
2019-06-27  Martin Liska  <mliska@suse.cz>

* class.c (adjust_clone_args): Remove obviously
dead assignments.
(dump_class_hierarchy_r): Likewise.
* decl.c (check_initializer): Likewise.
* parser.c (cp_parser_lambda_expression): Likewise.
* pt.c (unify_bound_ttp_args): Likewise.
(convert_template_argument): Likewise.
* rtti.c (build_headof): Likewise.
* typeck.c (convert_for_initialization): Likewise.
2019-06-27  Martin Liska  <mliska@suse.cz>

* libgcov-driver-system.c (gcov_exit_open_gcda_file): Remove obviously
dead assignments.
* libgcov-util.c: Likewise.

From-SVN: r272744

ix86: pass correct options to compiler for gfni-4 testcase

SSE2 is the required prereq of the builtins; as x86-64 has SSE2 enabled
anyway, the test failure was noticable on 32-bit builds only.

From-SVN: r272743

tree-ssa-sccvn.c (vn_reference_lookup_3): Encode valueized RHS.

2019-06-27  Richard Biener  <rguenther@suse.de>

* tree-ssa-sccvn.c (vn_reference_lookup_3): Encode valueized RHS.

* gcc.dg/tree-ssa/ssa-fre-69.c: New testcase.

From-SVN: r272742

re PR tree-optimization/89772 (memchr for a character not in constant nul-padded string not folded)

PR tree-optimization/89772
* gimple-fold.c (gimple_fold_builtin_memchr): consider trailing nuls in
out-of-bound accesses checking.

gcc/testsuite
* gcc.dg/builtin-memchr-4.c: New test.

From-SVN: r272740

PR libstdc++/91012 fixfilesystem_error::what() string

When I refactored the filesystem_error code I changed it to only use the
constructor parameter in the what() string, instead of the string
returned by system_error::what(). That meant it no longer included the
description of the error_code that system_error adds. This restores the
previous behaivour, as encouraged by the standard ("Implementations
should include the system_error::what() string and the pathnames of
path1 and path2 in the native format in the returned string").

PR libstdc++/91012
* src/c++17/fs_path.cc (filesystem_error::_Impl): Use a string_view
for the what_arg parameters.
(filesystem_error::filesystem_error): Pass system_error::what() to
the _Impl constructor.
* testsuite/27_io/filesystem/filesystem_error/cons.cc: Ensure that
filesystem_error::what() contains system_error::what().

From-SVN: r272739

Fix ICE when __builtin_calloc has no LHS (PR tree-optimization/91014).

2019-06-27  Martin Liska  <mliska@suse.cz>

PR tree-optimization/91014
* tree-ssa-dse.c (initialize_ao_ref_for_dse): Bail out
when LHS is NULL_TREE.
2019-06-27  Martin Liska  <mliska@suse.cz>

PR tree-optimization/91014
* gcc.target/s390/pr91014.c: New test.

From-SVN: r272738

re PR testsuite/91004 (Excess errors in g++.dg/torture/pr34850.C starting with r272688)

2019-06-27  Richard Biener  <rguenther@suse.de>

PR testsuite/91004
* g++.dg/torture/pr34850.C: Fix overly reduced testcase.

From-SVN: r272737

Fix warnings seen by clang in gcc/symbol-summary.h.

2019-06-27  Martin Liska  <mliska@suse.cz>

* symbol-summary.h (traverse): Pass
argument a to the call of callback.
(gt_ggc_mx): Mark arguments as unused.
(gt_pch_nx): Likewise.

From-SVN: r272734

Fix misc stuff seen by clang-static-analyzer.

2019-06-27  Martin Liska  <mliska@suse.cz>

* lto-dump.c (struct symbol_entry): Add default dtor.
(struct variable_entry): Likewise.
(struct function_entry): Likewise.
(dump_list_functions): Release memory.
(dump_list_variables): Likewise.
2019-06-27  Martin Liska  <mliska@suse.cz>

* libgcov-util.c (gcov_profile_merge): Release allocated
memory.
(calculate_overlap): Likewise.

From-SVN: r272733

One line change onto r272731

    PR target/62147
    * gcc/loop-iv.c (find_simple_exit)

-  if (single_exit (loop) && finite_loop_p (loop))
+  if (desc->infinite && single_exit (loop) && finite_loop_p (loop))

From-SVN: r272732

Call finite_loop_p in RTL to get better finiteness information.

gcc/ChangeLog

2019-06-27  Kewen Lin  <linkw@gcc.gnu.org>

    PR target/62147
    * gcc/loop-iv.c (find_simple_exit): Call finite_loop_p to update finiteness.

gcc/testsuite/ChangeLog

2019-06-27  Kewen Lin  <linkw@gcc.gnu.org>

    PR target/62147
    * gcc.target/powerpc/pr62147.c: New test.

From-SVN: r272731

re PR tree-optimization/90883 (Generated code is worse if returned struct is unnamed)

PR tree-optimization/90883
* tree-ssa-dse.c (delete_dead_or_redundant_call): Fix signature.
(delete_dead_or_redundant_assignment): Likewise.

From-SVN: r272726

re PR tree-optimization/90883 (Generated code is worse if returned struct is unnamed)

PR tree-optimization/90883
* tree-ssa-dse.c (delete_dead_or_redundant_call): Fix signature.
(delete_dead_or_redundant_assignment): Likewise.

From-SVN: r272725

Daily bump.

From-SVN: r272723

Define std::chars_format enumeration type

This type isn't used anywhere yet, but will be needed for the
floating-point overloads of to_chars and from_chars.

* include/std/charconv (chars_format): Define bitmask type.
* testsuite/20_util/to_chars/chars_format.cc: New test.

From-SVN: r272718

re PR tree-optimization/90883 (Generated code is worse if returned struct is unnamed)

PR tree-optimization/90883
* tree-ssa-alias.c (stmt_kills_ref_p): Handle BUILT_IN_CALLOC.
* tree-ssa-dse.c: Update various comments to distinguish between
dead and redundant stores.
(initialize_ao_ref_for_dse): Handle BUILT_IN_CALLOC.
(dse_optimize_redundant_stores): New function.
(delete_dead_or_redundant_call): Renamed from delete_dead_call.
Distinguish between dead and redundant calls in dump output.  All
callers updated.
(delete_dead_or_redundant_assignment): Similarly for assignments.
(dse_optimize_stmt): Handle _CHK variants.  For statements which
store 0 into multiple memory locations, try to prove a subsequent
store is redundant.

        PR tree-optimization/90883
* g++.dg/tree-ssa/pr90883.C: New test.
* gcc.dg/tree-ssa/ssa-dse-36.c: New test.

From-SVN: r272717

re PR target/89021 (Implement mmintrin.h in SSE)

PR target/89021
* config/i386/i386.c (ix86_autovectorize_vector_sizes):
Autovectorize 8-byte vectors for TARGET_MMX_WITH_SSE.

testsuite/ChangeLog:

PR target/89021
* lib/target-supports.exp (available_vector_sizes)
<[istarget i?86-*-*] || [istarget x86_64-*-*]>: Add
64-bit vectors for !ia32.

From-SVN: r272711

[PATCH, PPC 2/2] Fix Darwin bootstrap after split of rs6000.c.

To fix this we need to make the branch islands (or code) visible between
both files.  This keeps the generation side in rs6000.c and moves the
output routine to rs6000-logue.c, placing a reference to the islands
vector in rs6000-internal.h.

2019-06-26  Iain Sandoe  <iain@sandoe.co.uk>

* config/rs6000/rs6000-internal.h (branch_island): New typedef.
(branch_islands): New extern.
* config/rs6000/rs6000-logue.c (macho_branch_islands): Moved from
* config/rs6000/rs6000.c: .. here.

From-SVN: r272710

[PATCH, PPC 1/2] Make sure the gt- files are built for all sub-targets.

The new gt-rs6000-logue.h is common to all sub-targets in the port, so
it needs to be added for them.

It seems better to place the common target_gtfiles in the powerpc*-*-*
section, rather than duplicating them in sub-targets.  This would make it
less likely that a sub-target would be overlooked in any future file
introductions.

2019-06-26  Iain Sandoe  <iain@sandoe.co.uk>

* config.gcc (powerpc*-*-linux*): Move target_gtfiles from here..
(powerpc*-*-*) ... to here.

From-SVN: r272708

tree-ssa-dse.c (initialize_ao_ref_for_dse): Handle _chk variants of memcpy, memmove and memset builtins.

* tree-ssa-dse.c (initialize_ao_ref_for_dse): Handle _chk variants of
memcpy, memmove and memset builtins.
(maybe_trim_memstar_call): Likewise.

* gcc.c-torture/execute/builtins/builtins.exp: Add -fno-tree-dse
as DSE compromises several of these tests.
* gcc.dg/builtin-stringop-chk-1.c: Similarly.
* gcc.dg/memcpy-2.c: Similarly.
* gcc.dg/pr40340-1.c: Similarly.
* gcc.dg/pr40340-2.c: Similarly.
* gcc.dg/pr40340-5.c: Similarly.

From-SVN: r272704

ChangeLog: Document revision 272698

2016-06-26  Steven G. Kargl  <kargl@gcc.gnu.org>

* ChangeLog: Document revision 272698

2016-06-26  Steven G. Kargl  <kargl@gcc.gnu.org>

        * testsuite/ChangeLog: Document revision 272698

From-SVN: r272699

Add new helper traits for signed/unsigned integer types

Reuse the __is_one_of alias in additional places, and define traits to
check for signed/unsigned integer types so we don't have to duplicate
those checks elsewhere.

The additional overloads for std::byte in <bit> were reviewed by LEWG
and considered undesirable, so this patch removes them.

* include/bits/fs_path.h (path::__is_encoded_char): Use __is_one_of.
* include/std/bit (_If_is_unsigned_integer_type): Remove.
(_If_is_unsigned_integer): Use __is_unsigned_integer.
(rotl(byte, unsigned), rotr(byte, unsigned), countl_zero(byte))
(countl_one(byte), countr_zero(byte), countr_one(byte))
(popcount(byte), ispow2(byte), ceil2(byte), floor2(byte))
(log2p1(byte)): Remove.
* include/std/charconv (__detail::__is_one_of): Move to <type_traits>.
(__detail::__is_int_to_chars_type): Remove.
(__detail::__integer_to_chars_result_type): Use __is_signed_integer
and __is_unsigned_integer.
* include/std/type_traits (__is_one_of): Move here from <charconv>.
(__is_signed_integer, __is_unsigned_integer): New helpers.
* testsuite/26_numerics/bit/bit.pow.two/ceil2.cc: Remove test for
std::byte overload.
* testsuite/26_numerics/bit/bit.pow.two/floor2.cc: Likewise.
* testsuite/26_numerics/bit/bit.pow.two/ispow2.cc: Likewise.
* testsuite/26_numerics/bit/bit.pow.two/log2p1.cc: Likewise.
* testsuite/26_numerics/bit/bitops.count/countl_one.cc: Likewise.
* testsuite/26_numerics/bit/bitops.count/countl_zero.cc: Likewise.
* testsuite/26_numerics/bit/bitops.count/countr_one.cc: Likewise.
* testsuite/26_numerics/bit/bitops.count/countr_zero.cc: Likewise.
* testsuite/26_numerics/bit/bitops.count/popcount.cc: Likewise.
* testsuite/26_numerics/bit/bitops.rot/rotl.cc: Likewise.
* testsuite/26_numerics/bit/bitops.rot/rotr.cc: Likewise.

From-SVN: r272695

* config/rs6000/rs6000-logue.c: Add #ifndef TARGET_PROFILE_KERNEL.

From-SVN: r272694

* config.gcc (powerpc-ibm-aix*): Define target_gtfiles.

From-SVN: r272693

[PR preprocessor/90927] Fixe dependency output

https://gcc.gnu.org/ml/gcc-patches/2019-06/msg01664.html
libcpp/
PR preprocessor/90927
* mkdeps.c (mkdeps::vec::operator[]): Add non-const variant.
(deps_add_target): Deal with out of order unquoted targets.

gcc/testsuite/
* c-c++-common/pr90927.c: New.

From-SVN: r272692

rs6000: Fix rs6000_keep_leaf_when_profiled

This function is called from elsewhere, so shouldn't be static.

* config/rs6000/rs6000-internal.h (rs6000_keep_leaf_when_profiled): New
declaration.
* config/rs6000/rs6000-logue.c (rs6000_keep_leaf_when_profiled): Remove
"static".
* config/rs6000/rs6000.c (rs6000_keep_leaf_when_profiled): Delete
declaration.

---
 gcc/config/rs6000/rs6000-internal.h | 1 +
 gcc/config/rs6000/rs6000-logue.c    | 4 ++--
 gcc/config/rs6000/rs6000.c          | 1 -
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/gcc/config/rs6000/rs6000-internal.h b/gcc/config/rs6000/rs6000-internal.h
index a1acb66..22ebd37 100644
--- a/gcc/config/rs6000/rs6000-internal.h
+++ b/gcc/config/rs6000/rs6000-internal.h
@@ -99,6 +99,7 @@ extern bool save_reg_p (int reg);
 extern const char * rs6000_machine_from_flags (void);
 extern void emit_asm_machine (void);
 extern bool rs6000_global_entry_point_prologue_needed_p (void);
+extern bool rs6000_keep_leaf_when_profiled (void);

 /* Return true if the OFFSET is valid for the quad address instructions that
    use d-form (register + offset) addressing.  */
diff --git a/gcc/config/rs6000/rs6000-logue.c b/gcc/config/rs6000/rs6000-logue.c
index 9df4b5a..adc137b 100644
--- a/gcc/config/rs6000/rs6000-logue.c
+++ b/gcc/config/rs6000/rs6000-logue.c
@@ -4025,8 +4025,8 @@ rs6000_output_function_prologue (FILE *file)

 /* -mprofile-kernel code calls mcount before the function prolog,
    so a profiled leaf function should stay a leaf function.  */
-static bool
-rs6000_keep_leaf_when_profiled ()
+bool
+rs6000_keep_leaf_when_profiled (void)
 {
   return TARGET_PROFILE_KERNEL;
 }
diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
index 3fc4029..bcfc881 100644
--- a/gcc/config/rs6000/rs6000.c
+++ b/gcc/config/rs6000/rs6000.c
@@ -1338,7 +1338,6 @@ static bool rs6000_secondary_reload_move (enum rs6000_reg_type,
    secondary_reload_info *,
    bool);
 rtl_opt_pass *make_pass_analyze_swaps (gcc::context*);
-static bool rs6000_keep_leaf_when_profiled () __attribute__ ((unused));
 static tree rs6000_fold_builtin (tree, int, tree *, bool);

 /* Hash table stuff for keeping track of TOC entries.  */
--
1.8.3.1

From-SVN: r272691

rs6000: Remove duplicated code

A large portion of the code moved from rs6000.c (to rs6000-logue.c)
was accidentally retained.  This fixes it.

* rs6000.c: Fix previous commit, it missed some changes.

From-SVN: r272690

re PR middle-end/90982 (ICE in make_decl_rtl, at varasm.c:1344)

2019-06-26  Richard Biener  <rguenther@suse.de>

PR ipa/90982
* tree-inline.c (remap_ssa_name): Copy SSA range info.

* g++.dg/torture/pr90982.C: New testcase.

From-SVN: r272688

lto-streamer.h (lto_bitmap_alloc): Remove.

2019-06-26  Richard Biener  <rguenther@suse.de>

* lto-streamer.h (lto_bitmap_alloc): Remove.
(lto_bitmap_free): Likewise.
* lto-streamer.c (lto_bitmap_alloc): Remove.
(lto_bitmap_free): Likewise.
(lto_obstack): Likewise.
(lto_obstack_initialized): Likewise.
* lto-streamer-out.c (lto_output): Use own obstack for local
bitmap, free it consistently.

From-SVN: r272687

Fix sanitizer_common/sanitizer_posix_libcdep.cc compilation on Solaris 11.5

* sanitizer_common/sanitizer_posix_libcdep.cc: Cherry-pick
compiler-rt revision 363778.

From-SVN: r272685

re PR c++/67184 (Missed optimization with C++11 final specifier)

2019-06-26  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/67184
PR c++/69445
* g++.dg/other/final3.C: New.
* g++.dg/other/final5.C: Likewise.

From-SVN: r272675

re PR target/90991 (_mm_loadu_ps instrinsic translates to vmovaps in combination with _mm512_insertf32x4)

PR target/90991
* config/i386/sse.md
(*<extract_type>_vinsert<shuffletype><extract_suf>_0): Use vmovupd,
vmovups, vmovdqu, vmovdqu32 or vmovdqu64 instead of the aligned
insns if operands[2] is misaligned_operand.

* gcc.target/i386/avx512dq-pr90991-1.c: New test.

From-SVN: r272674

[RS6000] Change maddld match_operand from DI to GPR

From PowerPC ISA3.0, the description of `maddld RT, RA.RB, RC` is as follows:
64-bit RA and RB are multiplied and then the RC is signed extend to 128 bits,
and add them together.

We only apply it to 64-bit mode (DI) when implementing maddld.  However, if we
can guarantee that the result of the maddld operation will be limited to 32-bit
mode (SI), we can still apply it to 32-bit mode (SI).

gcc/ChangeLog
2019-06-26  Li Jia He  <helijia@linux.ibm.com>

* config/rs6000/rs6000.h (TARGET_MADDLD): Remove the restriction of
TARGET_POWERPC64.
* config/rs6000/rs6000.md (maddld): Change maddld match_operand from DI
to GPR.

gcc/testsuite/ChangeLog
2019-06-26  Li Jia He  <helijia@linux.ibm.com>

* gcc.target/powerpc/maddld-1.c: New testcase.

From-SVN: r272673

doc: Fix opindex for -W options

@opindex -Wxxx is wrong; it should be @opindex Wxxx.

* doc/invoke.texi (Warning Options): Fix some @opindex syntax.

From-SVN: r272672

Fix one another thinko in tree-vect-loop.c (PR tree-optimization/90973).

2019-06-26  Martin Liska  <mliska@suse.cz>

PR tree-optimization/90973
* tree-vect-loop.c (vect_get_known_peeling_cost): Use
epilogue_cost_vec instead of prologue_cost_vec for
a epilogue cost.

From-SVN: r272671

Fix missing else keyword seen with clang-static-analyzer:

2019-06-26  Martin Liska  <mliska@suse.cz>

* bb-reorder.c (connect_better_edge_p): Add missing else
statement in the middle of if-else statements.

/home/marxin/Programming/gcc/gcc/bb-reorder.c:1031:2: warning: Value stored to 'is_better_edge' is never read
        is_better_edge = true;
        ^                ~~~~
/home/marxin/Programming/gcc/gcc/bb-reorder.c:1034:2: warning: Value stored to 'is_better_edge' is never read
        is_better_edge = false;
        ^                ~~~~~

From-SVN: r272670

PR c++/70462 - unnecessary base ctor variant with final.

As pointed out in the PR, we don't need base 'tor variants for a final
class, since it can never be a base.  I tried also dropping complete
variants for abstract classes, but that runs into ABI compatibility problems
with older releases that refer to those symbols.

* optimize.c (populate_clone_array): Skip base variant if
CLASSTYPE_FINAL.
(maybe_clone_body): We don't need an alias if we are only defining
one clone.

From-SVN: r272669

Enable GCC support for AVX512_VP2INTERSECT which will be in tigerlaker.

There are two instructions for AVX512_VP2INTERSECT:
VP2INTERSECTD and VP2INTERSECTQ.

gcc/
2019-06-05  Hongtao Liu  <hongtao.liu@intel.com>

* common/config/i386/i386-common.c
(OPTION_MASK_ISA_AVX512VP2INTERSECT_SET,
OPTION_MASK_ISA_AVX512VP2INTERSECT_UNSET): New macros.
(OPTION_MASK_ISA2_AVX512F_UNSET): Add
OPTION_MASK_ISA_AVX512VP2INTERSECT_UNSET.
(ix86_handle_option): Handle -mavx512vp2intersect.
* config/i386/avx512vp2intersectintrin.h: New.
* config/i386/avx512vp2intersectvlintrin.h: New.
* config/i386/cpuid.h (bit_AVX512VP2INTERSECT): New.
* config/i386/driver-i386.c (host_detect_local_cpu): Detect
AVX512VP2INTERSECT.
* config/i386/i386-builtin-types.def: Add new types.
* config/i386/i386-builtin.def: Add new builtins.
* config/i386/i386-builtins.c: (enum processor_features): Add
F_AVX512VP2INTERSECT.
(static const _isa_names_table isa_names_table): Ditto.
* config/i386/i386-c.c (ix86_target_macros_internal): Define
__AVX512VP2INTERSECT__.
* config/i386/i386-expand.c (ix86_expand_builtin): Expand
IX86_BUILTIN_2INTERSECTD512, IX86_BUILTIN_2INTERSECTQ512,
IX86_BUILTIN_2INTERSECTD256, IX86_BUILTIN_2INTERSECTQ256,
IX86_BUILTIN_2INTERSECTD128, IX86_BUILTIN_2INTERSECTQ128.
* config/i386/i386-modes.def (P2QI, P2HI): New modes.
* config/i386/i386-options.c (ix86_target_string): Add
-mavx512vp2intersect.
(ix86_option_override_internal): Handle AVX512VP2INTERSECT.
* config/i386/i386.c (ix86_hard_regno_nregs): Allocate two regs for
P2HImode and P2QImode.
(ix86_hard_regno_mode_ok): Register pair only starts at even hardreg
number for P2QImode and P2HImode.
(ix86_regmode_natural_size): New function.
* config/i386/i386.h (TARGET_AVX512VP2INTERSECT,
TARGET_AVX512VP2INTERSECT_P, PTA_AVX512VP2INTERSECT
REGMODE_NATURAL_SIZE, MASK_PAIR_REGNO_P): New.
* config/i386/i386-protos.h (ix86_regmode_natural_size): Declare
* config/i386/i386.opt: Add -mavx512vp2intersect.
* config/i386/immintrin.h: Include avx512vp2intersectintrin.h and
avx512vp2intersectvlintrin.h.
* config/i386/sse.md (define_c_enum "unspec"): Add UNSPEC_VP2INTERSECT.
(define_mode_iterator VI48_AVX512VP2VL): New.
(avx512vp2intersect_2intersect<mode>,
avx512vp2intersect_2intersectv16si): New define_insn patterns.
* config.gcc: Add avx512vp2intersectvlintrin.h and
avx512vp2intersectintrin.h to extra_headers.
* doc/invoke.texi: Document -mavx512vp2intersect.

gcc/testsuite
2019-06-06  Hongtao Liu  <hongtao.liu@intel.com>
    Olga Makhotina  <olga.makhotina@intel.com>

* gcc.target/i386/avx512-check.h: Handle bit_AVX512VP2INTERSECT.
* gcc.target/i386/avx512vp2intersect-2intersect-1a.c: New test.
* gcc.target/i386/avx512vp2intersect-2intersect-1b.c: Likewise.
* gcc.target/i386/avx512vp2intersect-2intersectvl-1a.c: Likewise.
* gcc.target/i386/avx512vp2intersect-2intersectvl-1b.c: Likewise.
* gcc.target/i386/sse-12.c: Add -mavx512vp2intersect.
* gcc.target/i386/sse-13.c: Likewsie.
* gcc.target/i386/sse-14.c: Likewise.
* gcc.target/i386/sse-22.c: Likewise.
* gcc.target/i386/sse-23.c: Likewise.
* g++.dg/other/i386-2.C: Likewise.
* g++.dg/other/i386-3.C: Likewise.

Co-Authored-By: H.J. Lu <hongjiu.lu@intel.com>
Co-Authored-By: Olga Makhotina <olga.makhotina@intel.com>
From-SVN: r272668

re PR fortran/90988 (Wrong error message with variables named "PUBLIC*")

2019-06-24  Steven G. Kargl  <kargl@gcc.gnu.org>

PR Fortran/90988
* decl.c (access_attr_decl): Use temporary variable to reduce
unreadability of code.  Normalize jumping to return.
(gfc_match_protected): Fix parsing error.  Add comments to
explain code.  Remove dead code.
(gfc_match_private): Use temporary variable to reduce unreadability
of code. Fix parsing error.  Move code to test for blank PRIVATE.
Remove dead code.
(gfc_match_public): Move code to test for blank PUBLIC.  Fix
parsing error.  Remove dead code.

2019-06-24  Steven G. Kargl  <kargl@gcc.gnu.org>

PR Fortran/90988
* gfortran.dg/pr90988_1.f90: New test.
* gfortran.dg/pr90988_2.f90: Ditto.
* gfortran.dg/pr90988_3.f90: Ditto.

From-SVN: r272667

libgo/testsuite: ignore symbols with a leading dot in symtogo

    On AIX, a function has two symbols, a text symbol (with a leading dot)
    and a data one (without it).
    As the tests must be run only once, only the data symbol can be used to
    retrieve the final go symbol. Therefore, all symbols beginning with a dot
    are ignored by symtogo.

    Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/177837

From-SVN: r272666

Daily bump.

From-SVN: r272665

cmd/go: silence ar with D flag failures

    The first call of ar must not show its output in order to avoid useless
    error messages about D flag.
    The corresponding Go toolchain patch is CL 182077.

    Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/183817

From-SVN: r272661

Darwin, add a missed file change

From the last commit.

2019-06-25  Iain Sandoe  <iain@sandoe.co.uk>

* config.host: Add libef_ppc.a to the extra files for powerpc-darwin.

From-SVN: r272660

[Darwin, PPC] Move the out of line register save/restore to an endfile.

We have been including this in libgcc, which means that we have to append
-lgcc even when using shared libgcc. In preparation for revision of libgcc
split this into an endfile.

gcc/
2019-06-25  Iain Sandoe  <iain@sandoe.co.uk>

* config/rs6000/darwin.h (ENDFILE_SPEC): New.

libgcc/
2019-06-25  Iain Sandoe  <iain@sandoe.co.uk>

* config.host: Add libef_ppc.a to the extra files for powerpc-darwin.
* config/rs6000/t-darwin: (PPC_ENDFILE_SRC, PPC_ENDFILE_OBJS): New.
Build objects for the out of line save/restore register functions
so that they can be used for any supported Darwin version.
* config/t-darwin: Default the build Darwin version to Darwin8
(MacOS 10.4).

From-SVN: r272659

[PATCH, rs6000] Split up rs6000.c.

The source file rs6000.c has grown to unreasonable size and is being
split up into several smaller source files.  This should improve
compilation speed for building gcc.

This is the first of several patches to do this and moves most of the
prologue/epilogue code to a new source file.

Bootstrapped and tested on powerpc64le-unknown-linux-gnu and
powerpc64-unknown-linux-gnu with no regressions.  Is this ok for trunk?

2019-06-24  Bill Seurer  <seurer@linux.vnet.ibm.com>

* config/rs6000/rs6000.c (stack_info, rs6000_pic_labelno,
savres_routine_syms, savres_routine_name, morestack_ref,
rs6000_init_machine_status, save_reg_p, first_reg_to_save,
first_fp_reg_to_save, first_altivec_reg_to_save, compute_vrsave_mask,
compute_save_world_info, is_altivec_return_reg, fixed_reg_p,
rs6000_savres_strategy, rs6000_stack_info, debug_stack_info,
rs6000_return_addr, rs6000_decl_ok_for_sibcall,
rs6000_function_ok_for_sibcall, rs6000_ra_ever_killed,
rs6000_emit_load_toc_table, rs6000_emit_eh_reg_restore, uses_TOC,
create_TOC_reference, rs6000_aix_asm_output_dwarf_table_ref,
rs6000_emit_stack_tie, rs6000_emit_allocate_stack_1,
get_stack_clash_protection_probe_interval,
get_stack_clash_protection_guard_size,
rs6000_emit_probe_stack_range_stack_clash, rs6000_emit_allocate_stack,
rs6000_emit_probe_stack_range, output_probe_stack_range_1,
interesting_frame_related_regno, output_probe_stack_range_stack_clash,
output_probe_stack_range, rs6000_frame_related, generate_set_vrsave,
gen_frame_set, gen_frame_load, gen_frame_store, emit_frame_save,
gen_frame_mem_offset, rs6000_savres_routine_name,
rs6000_savres_routine_sym, rs6000_emit_stack_reset,
ptr_regno_for_savres, rs6000_emit_savres_rtx,
rs6000_emit_prologue_move_from_cr, split_stack_arg_pointer_used_p,
rs6000_global_entry_point_prologue_needed_p,
rs6000_get_separate_components, rs6000_components_for_bb,
rs6000_disqualify_components, rs6000_emit_prologue_components,
rs6000_emit_epilogue_components, rs6000_set_handled_components,
emit_vrsave_prologue, emit_split_stack_prologue, rs6000_emit_prologue,
rs6000_output_savres_externs, rs6000_output_function_prologue,
rs6000_keep_leaf_when_profiled, load_cr_save, restore_saved_cr,
load_lr_save, restore_saved_lr, add_crlr_cfa_restore,
offset_below_red_zone_p, emit_cfa_restores, rs6000_emit_epilogue,
rs6000_output_function_epilogue, gen_add3_const,
rs6000_expand_split_stack_prologue, rs6000_live_on_entry,
rs6000_split_stack_space_check, rs6000_save_toc_in_prologue_p): Moved
to rs6000-logue.c.
(machine_function): Moved to rs6000.h.
(rs6000_stack_t, ALTIVEC_REG_BIT, quad_address_offset_p) Moved to
rs6000-internal.h.
* config/rs6000/rs6000-logue.c(stack_info, rs6000_pic_labelno,
savres_routine_syms, savres_routine_name, morestack_ref,
rs6000_init_machine_status, save_reg_p, first_reg_to_save,
first_fp_reg_to_save, first_altivec_reg_to_save, compute_vrsave_mask,
compute_save_world_info, is_altivec_return_reg, fixed_reg_p,
rs6000_savres_strategy, rs6000_stack_info, debug_stack_info,
rs6000_return_addr, rs6000_decl_ok_for_sibcall,
rs6000_function_ok_for_sibcall, rs6000_ra_ever_killed,
rs6000_emit_load_toc_table, rs6000_emit_eh_reg_restore, uses_TOC,
create_TOC_reference, rs6000_aix_asm_output_dwarf_table_ref,
rs6000_emit_stack_tie, rs6000_emit_allocate_stack_1,
get_stack_clash_protection_probe_interval,
get_stack_clash_protection_guard_size,
rs6000_emit_probe_stack_range_stack_clash, rs6000_emit_allocate_stack,
rs6000_emit_probe_stack_range, output_probe_stack_range_1,
interesting_frame_related_regno, output_probe_stack_range_stack_clash,
output_probe_stack_range, rs6000_frame_related, generate_set_vrsave,
gen_frame_set, gen_frame_load, gen_frame_store, emit_frame_save,
gen_frame_mem_offset, rs6000_savres_routine_name,
rs6000_savres_routine_sym, rs6000_emit_stack_reset,
ptr_regno_for_savres, rs6000_emit_savres_rtx,
rs6000_emit_prologue_move_from_cr, split_stack_arg_pointer_used_p,
rs6000_global_entry_point_prologue_needed_p,
rs6000_get_separate_components, rs6000_components_for_bb,
rs6000_disqualify_components, rs6000_emit_prologue_components,
rs6000_emit_epilogue_components, rs6000_set_handled_components,
emit_vrsave_prologue, emit_split_stack_prologue, rs6000_emit_prologue,
rs6000_output_savres_externs, rs6000_output_function_prologue,
rs6000_keep_leaf_when_profiled, load_cr_save, restore_saved_cr,
load_lr_save, restore_saved_lr, add_crlr_cfa_restore,
offset_below_red_zone_p, emit_cfa_restores, rs6000_emit_epilogue,
rs6000_output_function_epilogue, gen_add3_const,
rs6000_expand_split_stack_prologue, rs6000_live_on_entry,
rs6000_split_stack_space_check, rs6000_save_toc_in_prologue_p): Moved
to here from rs6000.c.
* config/rs6000/rs6000.h (machine_function): Moved to here from rs6000.c.
* config/rs6000/rs6000-internal.h: (rs6000_stack_t, ALTIVEC_REG_BIT,
quad_address_offset_p) Moved to here from rs6000.c.
* config/rs6000/t-rs6000: Add new source file rs6000-logue.c.
* config/config.gcc: Add new source file rs6000-logue.c to garbage
collector.

From-SVN: r272658

class.c (resolves_to_fixed_type_p): Check CLASSTYPE_FINAL.

* class.c (resolves_to_fixed_type_p): Check CLASSTYPE_FINAL.

If we have a pointer to final class, we know the dynamic type of the object
must be that class, because it can't have any derived classes.

From-SVN: r272656

Put hashtab_chk_error into hash-table.c.

2019-06-25  Martin Liska  <mliska@suse.cz>

* hash-table.c (hashtab_chk_error): Move here from ...
* hash-table.h (hashtab_chk_error): ... here.

From-SVN: r272655

re PR c++/90969 (ICE: tree check: expected array_type, have vector_type in array_ref_low_bound, at tree.c:13570)

PR c++/90969
* constexpr.c (cxx_eval_array_reference): Don't look through VCE from
vector type if lval.

* g++.dg/ext/vector38.C: New test.

From-SVN: r272654

Fix non-portable use of std::abs(double) in constexpr function

Although libstdc++ adds 'constexpr' to its std::abs(floating-point)
overloads (as a non-conforming extension), those overloads are not used
if the target libc provides them, which is the case on Solaris.

The fix is to avoid std::abs and simply apply the negation when needed.

* include/std/numeric (midpoint(T, T)): Avoid std::abs in constexpr
function.

From-SVN: r272653

Transform filter-rtags-warnings to filter-clang-warnings.

2019-06-25  Martin Liska  <mliska@suse.cz>

contrib/filter-clang-warnings.py: Transform from
filter-rtags-warnings.py.

From-SVN: r272652

Remove dead code in df-scan.c (PR tree-optimization/90978).

2019-06-25  Martin Liska  <mliska@suse.cz>

PR tree-optimization/90978
* df-scan.c (df_update_entry_block_defs): Remove dead else
branch.
(df_update_exit_block_uses): Likewise.

From-SVN: r272651

Do not call strlen with NULL argument in libgcov.

2019-06-25  Martin Liska  <mliska@suse.cz>

* libgcov-driver-system.c (replace_filename_variables): Do not
call strlen with NULL argument.

From-SVN: r272650

Enable full GFortran library for AMD GCN

2019-06-25  Kwok Cheung Yeung  <kcy@codesourcery.com>
            Andrew Stubbs  <ams@codesourcery.com>

libgfortran/
* configure: Regenerate.
* configure.ac (LIBGFOR_MINIMAL): Do not use on AMD GCN.

Co-Authored-By: Andrew Stubbs <ams@codesourcery.com>
From-SVN: r272649

Stub implementation of unwinding for AMD GCN.

2019-06-25  Andrew Stubbs  <ams@codesourcery.com>

libgcc/
* config/gcn/t-amdgcn (LIB2ADD): Add unwind-gcn.c.
* config/gcn/unwind-gcn.c: New file.

From-SVN: r272648

Create GCN-specific gthreads

2019-06-25  Kwok Cheung Yeung  <kcy@codesourcery.com>
            Andrew Stubbs  <ams@codesourcery.com>

        gcc/
* config.gcc (thread_file): Set to gcn for AMD GCN.
* config/gcn/gcn.c (gcn_emutls_var_init): New function.
(TARGET_EMUTLS_VAR_INIT): New hook.

config/
* gthr.m4 (GCC_AC_THREAD_HEADER): Add case for gcn.

libgcc/
* configure: Regenerate.
* config/gcn/gthr-gcn.h: New.

Co-Authored-By: Andrew Stubbs <ams@codesourcery.com>
From-SVN: r272647

[PR 90939] Remove outdated assert in ipcp_bits_lattice::meet_with

2019-06-25  Martin Jambor  <mjambor@suse.cz>

PR ipa/90939
* ipa-cp.c (ipcp_bits_lattice::meet_with): Remove assert.

testsuite/
* g++.dg/lto/pr90939_[01].C: New test.

From-SVN: r272646

re PR tree-optimization/90930 (Excessive memory consumption)

2019-06-25  Richard Biener  <rguenther@suse.de>

PR tree-optimization/90930
* tree-ssa-reassoc.c (reassociate_bb): Only rewrite expression
into parallel form in the last pass instance.

* gcc.dg/tree-ssa/reassoc-24.c: Adjust.
* gcc.dg/tree-ssa/reassoc-25.c: Likewise.

From-SVN: r272644

[ARC] Fix for PR89838

gcc/
xxxx-xx-xx  Claudiu Zissulescu  <claziss@synopsys.com>

* config/arc/arc.c (arc_symbol_binds_local_p): New function.
(arc_legitimize_pic_address): Simplify and cleanup the function.
(SYMBOLIC_CONST): Remove.
(prepare_pic_move): Likewise.
(prepare_move_operands): Handle complex mov cases here.
(arc_legitimize_address_0): Remove call to
arc_legitimize_pic_address.
(arc_legitimize_address): Remove call to
arc_legitimize_tls_address.
* config/arc/arc.md (movqi_insn): Allow Cm3 match.
(movhi_insn): Likewise.

/gcc/testsuite
xxxx-xx-xx  Claudiu Zissulescu  <claziss@synopsys.com>

* gcc.target/arc/pr89838.c: New file.

From-SVN: r272643

Implement alternate "__intN__" form of "__intN" type

gcc/ChangeLog:

* gcc/c-family/c-common.c (c_common_nodes_and_builtins): Define
alternate "__intN__" name for "__intN" types.
* gcc/c/c-parser.c (c_parse_init): Create keyword for "__intN__" type.
* gcc/cp/lex.c (init_reswords): Likewise.
* gcc/config/msp430/msp430.h: Use __int20__ for SIZE_TYPE and
PTRDIFF_TYPE.
* gcc/cp/cp-tree.h (cp_decl_specifier_seq): New bitfield "int_n_alt".
* gcc/c/c-decl.c (declspecs_add_type): Don't pedwarn about "__intN" ISO
C incompatibility if alternate "__intN__" form is used.
* gcc/cp/decl.c (grokdeclarator): Likewise.
* gcc/cp/parser.c (cp_parser_simple_type_specifier): Set
decl_specs->int_n_alt if "__intN__" form is used.
* gcc/gimple-ssa-sprintf.c (build_intmax_type_nodes): Accept "__intN__"
format of "__intN" types for UINTMAX_TYPE.
* gcc/brig/brig-lang.c (brig_build_c_type_nodes): Accept "__intN__"
format of "__intN" types for SIZE_TYPE.
* gcc/lto/lto-lang.c (lto_build_c_type_nodes): Likewise.
* gcc/stor-layout.c (initialize_sizetypes): Accept "__intN__"
format of "__intN" types for SIZETYPE.
* gcc/tree.c (build_common_tree_nodes): Accept "__intN__"
format of "__intN" types for SIZE_TYPE and PTRDIFF_TYPE.
* gcc/doc/invoke.texi: Document that __intN__ disables pedantic
warnings.

gcc/testsuite/ChangeLog:

* gcc.target/msp430/mlarge-pedwarns.c: New test.

From-SVN: r272640

tree-ssa-alias.c (indirect_ref_may_alias_decl_p): Check that base2_alias_set is non-zero before doing TBAA based disambiguation.

* tree-ssa-alias.c (indirect_ref_may_alias_decl_p): Check that
base2_alias_set is non-zero before doing TBAA based disambiguation.

From-SVN: r272639

Properly sum costs in tree-vect-loop.c (PR tree-optimization/90973).

2019-06-25  Martin Liska  <mliska@suse.cz>

PR tree-optimization/90973
* tree-vect-loop.c (vect_get_known_peeling_cost): Sum retval
of prologue and epilogue.

From-SVN: r272638

decl.c (gnat_to_gnu_entity): Remove superfluous test in previous change.

* gcc-interface/decl.c (gnat_to_gnu_entity): Remove superfluous test
in previous change.
* gcc-interface/gigi.h (maybe_character_type): Fix formatting.
(maybe_character_value): Likewise.

From-SVN: r272637

re PR sanitizer/90954 (ICE: combining undefined behavior sanitizer with openmp)

PR sanitizer/90954
* c-omp.c (c_finish_omp_atomic): Allow tree_invariant_p in addition
to SAVE_EXPR in first operand of a COMPOUND_EXPR.

* c-c++-common/gomp/pr90954.c: New test.

From-SVN: r272635

pstl_config.h (_PSTL_PRAGMA_SIMD_SCAN, [...]): Define to OpenMP 5.0 pragmas even for GCC 10.0+.

* include/pstl/pstl_config.h (_PSTL_PRAGMA_SIMD_SCAN,
_PSTL_PRAGMA_SIMD_INCLUSIVE_SCAN, _PSTL_PRAGMA_SIMD_EXCLUSIVE_SCAN):
Define to OpenMP 5.0 pragmas even for GCC 10.0+.
(_PSTL_UDS_PRESENT): Define to 1 for GCC 10.0+.

From-SVN: r272634

runtime: mark memequal and memclrNoHeapPointers nosplit

    They are wrappers of libc functions that use no stack. Mark them
    nosplit so the linker won't patch it to call __morestack_non_split.

    Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/183629

From-SVN: r272633

Daily bump.

From-SVN: r272632

ipa-utils.h (type_with_linkage_p): Verify that type is CXX_ODR_P.

* ipa-utils.h (type_with_linkage_p): Verify that type is
CXX_ODR_P.
(odr_type_p): Remove extra return.
* lto-streamer-out.c (hash_tree): Hash TYPE_CXX_ODR_P;
hash STRING_FLAG only for arrays and integers.
* tree-stremaer-in.c (unpack_ts_type_common_value_fields):
Update analogously.
* tree-streamer-out.c (pack_ts_type_common_value_fields):
Likewise.
* print-tree.c (print_node): Print cxx-odr-p
and string-flag.
* tree.c (need_assembler_name_p): Also check that type
is CXX_ODR_TYPE_P
(verify_type_variant): Update verification of SRING_FLAG;
also check CXX_ODR_P.
* tree.h (ARRAY_OR_INTEGER_TYPE_CHECK): New macro.
(TYPE_STRING_FLAG): Use it.
(TYPE_CXX_ODR_P): New macro.

* lto-common.c (compare_tree_sccs_1): Compare CXX_ODR_P;
compare STRING_FLAG only for arrays and integers.

* gcc-interface/decl.c (gnat_to_gnu_entity): Check that
type is array or integer prior checking string flag.
* gcc-interface/gigi.h (gnat_signed_type_for,
maybe_character_value): Likewise.

* c-common.c (braced_lists_to_strings): Check that
type is array or integer prior checking string flag.

* lex.c (cxx_make_type): Set TYPE_CXX_ODR_P.

* dwarf2out.c (gen_array_type_die): First check that type
is an array and then test string flag.

* trans-expr.c (gfc_conv_substring): Check that
type is array or integer prior checking string flag.
(gfc_conv_string_parameter): Likewise.
* trans-openmp.c (gfc_omp_scalar_p): Likewise.
* trans.c (gfc_build_array_ref): Likewise.

From-SVN: r272628

[Darwin, PPC, testsuite] Skip tests for unimplemented functionality.

The -mno-speculate-indirect-jumps functionality is not implemented for
Darwin and, given that it's deprecated, is unlikely to be.

2019-06-24  Iain Sandoe  <iain@sandoe.co.uk>

* gcc.target/powerpc/safe-indirect-jump-1.c: Skip for Darwin.
* gcc.target/powerpc/safe-indirect-jump-7.c: Likewise.

From-SVN: r272627

[Darwin, PPC, testsuite] Fix spec-barr-1.c for Darwin.

We just needed to adjust the regex to accept Darwin's register names.

2019-06-24  Iain Sandoe  <iain@sandoe.co.uk>

* gcc.target/powerpc/spec-barr-1.c: Adjust scan assembler regex
to recognise Darwin's register names.

From-SVN: r272626

[Darwin, testsuite] Fix isystem-2.c.

For the test to succeed there needs to be some header that is to be found in
the 'expected' place i.e. <sysroot>/usr/include/.  It's important that it is
not the name of a header for which fixincludes have been applied, since such
headers will be found in the gcc include-fixed dir and, in general, reference
additional headers.  The dummy sysroot will prevent the additional headers
from being found, resulting in a failed test.  The fix is to use a header name
that isn't expected to be present in a real sysroot.

2019-06-24  Iain Sandoe  <iain@sandoe.co.uk>

* gcc.dg/cpp/isysroot-1.c (main): Use <example.h> as the test header.
* gcc.dg/cpp/usr/include/stdio.h: Rename...
* gcc.dg/cpp/usr/include/example.h: ... to this.

From-SVN: r272625

compiler: open code string equality

    Open code string equality with builtin memcmp. This allows
    further optimizations in the backend.

    Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/183538

From-SVN: r272624

re PR target/90972 (ICE in fold_convert_loc, at fold-const.c:2429)

2019-06-24  Richard Biener  <rguenther@suse.de>

PR tree-optimization/90972
* tree-vect-stmts.c (vect_init_vector): Handle CONSTANT_CLASS_P
in common code, dealing with STRING_CST properly.

* gcc.dg/torture/pr90972.c: New testcase.

From-SVN: r272623

re PR tree-optimization/90930 (Excessive memory consumption)

2019-06-24  Richard Biener  <rguenther@suse.de>

PR tree-optimization/90930
PR tree-optimization/90316
* tree-ssa-alias.c (walk_non_aliased_vuses): Add missing
decrement of limit.

From-SVN: r272621

compiler: use builtin memcmp directly

    Instead of going through a C function __go_memcmp, we can just
    use __builtin_memcmp directly. This allows more optimizations in
    the compiler backend.

    Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/183537

From-SVN: r272620

utils.c (handle_nonnull_attribute): Quote attribute name.

gcc/ada/ChangeLog:

* gcc-interface/utils.c (handle_nonnull_attribute): Quote attribute
name.

gcc/c/ChangeLog:

* c-typeck.c (build_binary_op): Hyphenate floating-point.

gcc/testsuite/ChangeLog:

* gcc.dg/Wfloat-equal-1.c: Adjust text of expected diagnostic.
* gcc.dg/misc-column.c: Ditto.

gcc/ChangeLog:

* tree-pretty-print.h: Remove unnecessary punctuation characters
from a diagnostic.
* tree-ssa.c (release_defs_bitset): Correct preprocessor conditional.

From-SVN: r272619

Don't use a separate CLASSTYPE_AS_BASE if it's the same size.

* class.c (layout_class_type): Don't use a separate
CLASSTYPE_AS_BASE if it's the same size.

From-SVN: r272618

Fix std::midpoint for denormal values

* include/std/numeric (midpoint(T, T)): Change implementation for
floating-point types to avoid incorrect rounding of denormals.
* testsuite/26_numerics/midpoint/floating.cc: Add check for correct
rounding with denormals.
* testsuite/26_numerics/gcd/gcd_neg.cc: Adjust dg-error line numbers.
* testsuite/26_numerics/lcm/lcm_neg.cc: Likewise.

From-SVN: r272616

Define C11 macros such as FLT_DECIMAL_DIG for C++17

* testsuite/18_support/headers/cfloat/values_c++17.cc: New test.

From-SVN: r272615

Daily bump.

From-SVN: r272613

compiler: edit error messages to avoid -Wformat-diag warnings

    GCC recently introduced -Wformat-diag to scrutinize GCC error messages.
    It reports a number of warnings about gofrontend code, such as:

    ../../trunk/gcc/go/gofrontend/import.cc: In member function ‘Type* Import::type_for_index(int, const string&, size_t, bool*)’:
    ../../trunk/gcc/go/gofrontend/import.cc:1129:48: warning: unquoted operator ‘>=’ in format [-Wformat-diag]
     1129 |         "error in %s at %lu: bad type index %d >= %d",
          |                                                ^~

    ../../trunk/gcc/go/gofrontend/ast-dump.cc: In member function ‘void Ast_dump_context::dump(Gogo*, const char*)’:
    ../../trunk/gcc/go/gofrontend/ast-dump.cc:203:25: warning: unquoted option name ‘-fgo-dump-ast’ in format [-Wformat-diag]
      203 |     "cannot open %s:%m, -fgo-dump-ast ignored", dumpname.c_str());
          |                         ^~~~~~~~~~~~~

    ../../trunk/gcc/go/gofrontend/expressions.cc: In static member function ‘static Bexpression* Func_expression::get_code_pointer(Gogo*, Named_object*, Location)’:
    ../../trunk/gcc/go/gofrontend/expressions.cc:1350:29: warning: misspelled term ‘builtin function’ in format; use ‘built-in function’ instead [-Wformat-diag]
     1350 |     "invalid use of special builtin function %qs; must be called",
          |                             ^~~~~~~~~~~~~~~~

    ../../trunk/gcc/go/gofrontend/gogo.cc: In member function ‘void Gogo::add_linkname(const string&, bool, const string&, Location)’:
    ../../trunk/gcc/go/gofrontend/gogo.cc:2527:4: warning: unquoted sequence of 2 consecutive punctuation characters ‘//’ in format [-Wformat-diag]
     2527 |   ("%s is not a function; "
          |   ~^~~~~~~~~~~~~~~~~~~~~~~~
     2528 |    "//go:linkname is only supported for functions"),
          |    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    This CL edits error messages to avoid these warnings.

    Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/183497

* go.test/test/blank1.go: Update for diagnostic message changes.

From-SVN: r272608

compiler: add go_debug and use it for debug messages

    GCC recently added a new warning -Wformat-diag which does a lot of
    rigorous checks on GCC diagnostic messages.  This produces a number of
    unnecessary diagnostics on gofrontend diagnostic output, such as

    ../../trunk/gcc/go/gofrontend/escape.cc: In member function ‘virtual int Escape_analysis_assign::statement(Block*, size_t*, Statement*)’:
    ../../trunk/gcc/go/gofrontend/escape.cc:1336:33: warning: spurious leading punctuation sequence ‘[’ in format [-Wformat-diag]
     1336 |       go_inform(s->location(), "[%d] %s esc: %s",
          |                                 ^

    ../../trunk/gcc/go/gofrontend/escape.cc: In member function ‘void Escape_analysis_assign::call(Call_expression*)’:
    ../../trunk/gcc/go/gofrontend/escape.cc:1964:17: warning: unquoted operator ‘::’ in format [-Wformat-diag]
     1964 |         "esccall:: indirect call <- %s, untracked",
          |                 ^~

    ../../trunk/gcc/go/gofrontend/escape.cc:1964:34: warning: unbalanced punctuation character ‘<’ in format [-Wformat-diag]
     1964 |         "esccall:: indirect call <- %s, untracked",
          |                                  ^

    Avoid these messages by adding a new function go_debug that uses only
    printf formatting, not GCC diagnostic formatting, and change all the
    optimization debugging messages to use it.  None of the debugging
    messages used the GCC diagnostic formatting specifiers anyhow.

    Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/183437

From-SVN: r272607

[Darwin, PPC, testsuite] Fix builtins-2 for Darwin.

This cannot pass for current Darwin, since it requires VSX and we
don't have any hardware supporting that.  Add a dg-requires clause
for this.

2019-06-23  Iain Sandoe  <iain@sandoe.co.uk>

* gcc.target/powerpc/builtins-2.c: Require VSX hardware support.

From-SVN: r272606

[Darwin, PPC, testsuite] Fix pr80125 testcase for Darwin.

Darwin (unlike most of the members of the PowerPC port family)
defaults to signed chars, so the test was failing to compile with
a "mismatched parameters" error.

2019-06-23  Iain Sandoe  <iain@sandoe.co.uk>

* gcc.target/powerpc/pr80125.c (foo): Use an unsigned char
vector explicitly for the vec_perm.

From-SVN: r272605

[Darwin, PPC, testsuite] Fix builtins-1 testcase for Darwin.

This needs to account for Darwin's __USER_LABEL_PREFIX__.

2019-06-23  Iain Sandoe  <iain@sandoe.co.uk>

* gcc.target/powerpc/builtins-1.c: Account for Darwin's use of
__USER_LABEL_PREFIX__.

From-SVN: r272604

[Darwin, PPC] Handle GCC target pragma.

For compatibility with other members of the port.
Note, that we do not handle the longcall attribute, since longcall
is not required/used on current Darwin.

2019-06-23  Iain Sandoe  <iain@sandoe.co.uk>

* config/rs6000/darwin.h: Handle GCC target pragma.

From-SVN: r272603

[Darwin, PPC] Emit uppercase versions of ppc defines.

Emit __PPC__ (32b) and __PPC64__ (64bit) as per the other members
of the PowerPC port.

2019-06-23  Iain Sandoe  <iain@sandoe.co.uk>

* config/rs6000/darwin.h: (__PPC__, __PPC64__): New.

From-SVN: r272602

[Darwin, PPC, testsuite] Fix pr71785 testcase for Darwin.

Firstly, we adjust the test conditions to use non-PIC code for Darwin.
Secondly, we have to account for out-of-line GPR restores which gives
a false positive on one of the scan-assembler-not.  Lastly, we make the
test a bit more specific for Darwin - that it looks for absence of
branches to local labels.

2019-06-23  Iain Sandoe  <iain@sandoe.co.uk>

* gcc.target/powerpc/pr71785.c: For Darwin, make test non-PIC,
expect the out-of-line GPR restore, and test specifically for
absence of branches to local labels.

From-SVN: r272601