input.c/libcpp: fix lifetimes of path buffers

Running "make selftest-valgrind" showed various leaks of the form:

408 bytes in 24 blocks are definitely lost in loss record 572 of 679
   at 0x4A0645D: malloc (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
   by 0x1B0D057: xmalloc (xmalloc.c:148)
   by 0x1ACCAA1: append_file_to_dir(char const*, cpp_dir*) [clone .isra.3] (files.c:1567)
   by 0x1ACD56F: _cpp_find_file (files.c:390)
   by 0x1ACF8FB: cpp_read_main_file(cpp_reader*, char const*) (init.c:632)
   by 0x1AB3D97: selftest::lexer_test::lexer_test(selftest::line_table_case const&, char const*, selftest::lexer_test_options*) (input.c:2014)
   by 0x1AB792B: selftest::test_lexer_string_locations_u8(selftest::line_table_case const&) (input.c:2713)
   by 0x1ABA22A: selftest::for_each_line_table_case(void (*)(selftest::line_table_case const&)) (input.c:3227)
   by 0x1ABA381: selftest::input_c_tests() (input.c:3260)
   by 0x1A295F1: selftest::run_tests() (selftest-run-tests.c:62)
   by 0xF20DC4: toplev::run_self_tests() (toplev.c:2076)
   by 0xF20FCD: toplev::main(int, char**) (toplev.c:2153)

Fix the leak by freeing the file->path in destroy_cpp_file.
However, doing so would lead to a use-after-free in input.c's file cache
since the filenames in this cache are the libcpp file->path buffers.

Hence we need to ensure that any references to the file in the input.c
cache are purged before cleaning up file->path.  This is normally done
by the temp_source_file dtor.  Hence we need to reorder things to that
the temp_source_file dtor runs before cleaning up the cpp_parser.  The
patch does this by introducing a wrapper class around cpp_parser *, so
that the dtor can run after the dtor for temp_source_file.

gcc/ChangeLog:
* input.c (fcache::file_patch): Add comment about lifetime.
(selftest::cpp_reader_ptr): New class.
(selftest::lexer_test): Convert m_parser from cpp_reader *
to a cpp_reader_ptr, and move m_tempfile to after it.
(selftest::lexer_test::lexer_test): Update for above reordering.
(lexer_test::~lexer_test): Move cleanup of m_parser to
cpp_reader_ptr's dtor.

libcpp/ChangeLog:
* files.c (destroy_cpp_file): Free file->path.

From-SVN: r241536

Convert logical ops on integers to bitwise equivalent with -fdec.

gcc/fortran/
* gfortran.texi: Document.
* resolve.c (logical_to_bitwise): New function.
* resolve.c (resolve_operator): Wrap operands with logical_to_bitwise.

gcc/testsuite/gfortran.dg/
* dec_bitwise_ops_1.f90, dec_bitwise_ops_2.f90: New testcases.

From-SVN: r241534

Implement ~line_maps ()

line_maps instances such as the global line_table are
GC-managed, but the htab within location_adhoc_data_map.htab
is not GC-managed.

Previously this was deleted manually by a call to
location_adhoc_data_fini within toplev::main.

However, on adding a call to forcibly_ggc_collect after the
selftests, all of the htabs for the various line_tables
created during the selftests start showing up as leaks
in "make selftest-valgrind", e.g.:

13,536 (1,344 direct, 12,192 indirect) bytes in 12 blocks are definitely lost in loss record 1,065 of 1,086
   at 0x4A081D4: calloc (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
   by 0x16DB3B0: xcalloc (xmalloc.c:163)
   by 0x16D8D34: htab_create_typed_alloc (hashtab.c:358)
   by 0x16D8DBD: htab_create_alloc (hashtab.c:286)
   by 0x16A2CCC: linemap_init(line_maps*, unsigned int) (line-map.c:353)
   by 0x1685605: selftest::line_table_test::line_table_test(selftest::line_table_case const&) (input.c:1624)
   by 0x167D09C: selftest::test_applying_fixits_modernize_named_init(selftest::line_table_case const&) (edit-context.c:1430)
   by 0x1686827: selftest::for_each_line_table_case(void (*)(selftest::line_table_case const&)) (input.c:3227)
   by 0x167F067: selftest::edit_context_c_tests() (edit-context.c:1658)
   by 0x1616E67: selftest::run_tests() (selftest-run-tests.c:71)
   by 0xC0DB25: toplev::run_self_tests() (toplev.c:2076)
   by 0x618EB4: toplev::main(int, char**) (toplev.c:2153)

This patch removes the manual one-time cleanup in favor of
adding a destructor to class line_maps, which cleans up
the non-GC-managed htab.

Doing so improves "make selftest-valgrind" from:

==61118== LEAK SUMMARY:
==61118==    definitely lost: 121,248 bytes in 1,515 blocks
==61118==    indirectly lost: 974,344 bytes in 959 blocks
==61118==      possibly lost: 0 bytes in 0 blocks
==61118==    still reachable: 1,332,599 bytes in 3,684 blocks
==61118==         suppressed: 0 bytes in 0 blocks

to:

==57182== LEAK SUMMARY:
==57182==    definitely lost: 13,840 bytes in 556 blocks
==57182==    indirectly lost: 0 bytes in 0 blocks
==57182==      possibly lost: 0 bytes in 0 blocks
==57182==    still reachable: 1,355,703 bytes in 3,684 blocks
==57182==         suppressed: 0 bytes in 0 blocks

gcc/ChangeLog:
* toplev.c (toplev::main): Remove call to
location_adhoc_data_fini.

libcpp/ChangeLog:
* include/line-map.h (line_maps::~line_maps): New dtor.
(location_adhoc_data_fini): Delete decl.
* line-map.c (line_maps::~line_maps): New dtor.
(location_adhoc_data_fini): Delete.

From-SVN: r241533

constexpr.c (maybe_constant_init): Pull out TARGET_EXPR_INITIAL.

* constexpr.c (maybe_constant_init): Pull out TARGET_EXPR_INITIAL.

(cxx_eval_outermost_constant_expr): Don't return a CONSTRUCTOR
with CONSTRUCTOR_NO_IMPLICIT_ZERO.
(cxx_eval_call_expression): Clear CONSTRUCTOR_NO_IMPLICIT_ZERO.

From-SVN: r241531

tree.h (wi::fits_to_tree_p): Accept only 0 and 1 for boolean types.

* tree.h (wi::fits_to_tree_p): Accept only 0 and 1 for boolean types.
* tree.c (int_fits_type_p): Likewise.  Adjust head comment.

From-SVN: r241529

re PR fortran/72770 (ICE in make_ssa_name_fn, at tree-ssanames.c:263)

gcc/testsuite/ChangeLog:

2016-10-25  Andre Vehreschild  <vehre@gcc.gnu.org>

PR fortran/72770
* gfortran.dg/alloc_comp_class_5.f03: Added test again that caused
this pr.

gcc/fortran/ChangeLog:

2016-10-25  Andre Vehreschild  <vehre@gcc.gnu.org>

PR fortran/72770
* class.c (find_intrinsic_vtab): No longer encode the string length
into vtype's name and use the char's kind for the size instead of
the string_length time the size.
* trans-array.c (gfc_conv_ss_descriptor): For deferred length char
arrays the dynamically sized type needs to be declared.
(build_class_array_ref): Address the i-th array element by multiplying
it with the _vptr->_size and the _len to make sure char arrays are
addressed correctly.
* trans-expr.c (gfc_conv_intrinsic_to_class): Made comment more
precise.

From-SVN: r241528

Expose forcibly_ggc_collect and run it after all selftests

gcc/ChangeLog:
* ggc-tests.c (forcibly_ggc_collect): Rename to...
(selftest::forcibly_ggc_collect): ...this, and remove "static".
(test_basic_struct): Update for above renaming.
(test_length): Likewise.
(test_union): Likewise.
(test_finalization): Likewise.
(test_deletable_global): Likewise.
(test_inheritance): Likewise.
(test_chain_next): Likewise.
(test_user_struct): Likewise.
(test_tree_marking): Likewise.
* selftest-run-tests.c (selftest::run_tests): Call
selftest::forcibly_ggc_collect at the end of the selftests.
* selftest.h (selftest::forcibly_ggc_collect): New decl.

From-SVN: r241527

re PR target/78102 (GCC refuses to generate PCMPEQQ instruction for SSE4.1)

PR target/78102
* optabs.def (vcondeq_optab, vec_cmpeq_optab): New optabs.
* optabs.c (expand_vec_cond_expr): For comparison codes
EQ_EXPR and NE_EXPR, attempt vcondeq_optab as fallback.
(expand_vec_cmp_expr): For comparison codes
EQ_EXPR and NE_EXPR, attempt vec_cmpeq_optab as fallback.
* optabs-tree.h (expand_vec_cmp_expr_p, expand_vec_cond_expr_p):
Add enum tree_code argument.
* optabs-query.h (get_vec_cmp_eq_icode, get_vcond_eq_icode): New
inline functions.
* optabs-tree.c (expand_vec_cmp_expr_p): Add CODE argument.  For
CODE EQ_EXPR or NE_EXPR, attempt to use vec_cmpeq_optab as
fallback.
(expand_vec_cond_expr_p): Add CODE argument.  For CODE EQ_EXPR or
NE_EXPR, attempt to use vcondeq_optab as fallback.
* tree-vect-generic.c (expand_vector_comparison,
expand_vector_divmod, expand_vector_condition): Adjust
expand_vec_cmp_expr_p and expand_vec_cond_expr_p callers.
* tree-vect-stmts.c (vectorizable_condition,
vectorizable_comparison): Likewise.
* tree-vect-patterns.c (vect_recog_mixed_size_cond_pattern,
check_bool_pattern, search_type_for_mask_1): Likewise.
* expr.c (do_store_flag): Likewise.
* doc/md.texi (@code{vec_cmpeq@var{m}@var{n}},
@code{vcondeq@var{m}@var{n}}): Document.
* config/i386/sse.md (vec_cmpeqv2div2di, vcondeq<VI8F_128:mode>v2di):
New expanders.
testsuite/
* gcc.target/i386/pr78102.c: New test.

From-SVN: r241525

intrinsic.texi (cosd): New mathop.

gcc/fortran/
* intrinsic.texi (cosd): New mathop.

From-SVN: r241523

Handle negative times in filesystem::last_write_time

* src/filesystem/ops.cc
(last_write_time(const path&, file_time_type, error_code&)): Handle
negative times correctly.
* testsuite/experimental/filesystem/operations/last_write_time.cc:
Test writing file times.

From-SVN: r241522

Fix error handling in copy_file and equivalent

* src/filesystem/ops.cc (do_copy_file): Report an error if source or
destination is not a regular file (LWG 2712).
(equivalent): Fix error handling and result when only one file exists.
* testsuite/experimental/filesystem/operations/copy.cc: Remove files
created by tests. Test copying directories.
* testsuite/experimental/filesystem/operations/copy_file.cc: Remove
files created by tests.
* testsuite/experimental/filesystem/operations/equivalent.cc: New.
* testsuite/experimental/filesystem/operations/is_empty.cc: New.
* testsuite/experimental/filesystem/operations/read_symlink.cc: Remove
file created by test.
* testsuite/experimental/filesystem/operations/remove_all.cc: New.
* testsuite/util/testsuite_fs.h (~scoped_file): Only try to remove
file if path is non-empty, to support removal by other means.

From-SVN: r241521

Enable .XOR. operator with -std=legacy.

gcc/fortran/
* match.c (gfc_match_intrinsic_op): Match ".XOR." with -std=legacy.
* gfortran.texi: Document.

gcc/testsuite/gfortran.dg/
* dec_logical_xor_1.f90: New.
        * dec_logical_xor_2.f90: New.
        * dec_logical_xor_3.f03: New.

From-SVN: r241520

Enable %LOC as an rvalue with -std=legacy.

gcc/fortran/
        * primary.c (gfc_match_rvalue): Match %LOC as LOC with -std=legacy.
        * gfortran.texi: Document.

gcc/testsuite/gfortran.dg/
* dec_loc_rval_1.f90: New test.
        * dec_loc_rval_2.f90: New test.
        * dec_loc_rval_3.f90: New test.

From-SVN: r241519

Support TYPE as alias for PRINT with -fdec.

gcc/fortran/
* decl.c (gfc_match_type): New function.
* match.h (gfc_match_type): New function.
* match.c (gfc_match_if): Special case for one-line IFs.
* gfortran.texi: Update documentation.
* parse.c (decode_statement): Invoke gfc_match_type.

gcc/testsuite/gfortran.dg/
* dec_type_print.f90: New testcase.

From-SVN: r241518

Treat form feed as whitespace.

gcc/fortran/
* gfortran.texi: Document.
* gfortran.h (gfc_is_whitespace): Include form feed ('\f').

gcc/testsuite/gfortran.dg/
* feed_1.f90, feed_2.f90: New testcases.

From-SVN: r241517

Cleanup -fdec.

gcc/fortran/
* invoke.texi, gfortran.texi: Touch up documentation of -fdec.
* gfortran.h (gfc_option): Move flag_dec_structure out of gfc_option.
* decl.c (match_record_decl, gfc_match_decl_type_spec,
gfc_match_structure_decl): Ditto.
* match.c (gfc_match_member_sep): Ditto.
* options.c (gfc_handle_option): Ditto.
* lang.opt (fdec-structure): Use Fortran Var for flag_dec_structure.
* lang.opt (fdec): Use Fortran Var to create flag_dec.
* options.c (set_dec_flags): With -fdec enable -fcray-pointer,
-fd-lines-as-comments (default), -fdollar-ok, and legacy std flags.

From-SVN: r241516

Add BZ marker to recent commit

From-SVN: r241515

go-lang.c: remove a redundant cast

gcc/go/ChangeLog:
* go-lang.c (go_langhook_type_for_mode): Remove redundant cast
from result of GET_MODE_CLASS.  Minor formatting fixes.

From-SVN: r241514

v850.c (v850_handle_data_area_attribute): Fix fallthru comment.

* config/v850/v850.c (v850_handle_data_area_attribute): Fix fallthru
comment.
(v850_output_aligned_bss): Add missing break.

From-SVN: r241513

* config/m68k/m68k.c (m68k_get_reloc_decoration): Add gcc_unreachable.

From-SVN: r241512

Fix not caught use-after-scope with -O1 (PR sanitize/78106)

PR sanitizer/78106
* sanopt.c (imm_dom_path_with_freeing_call): Handle gasm
statements as they can also contain possibly a freeing call.
PR sanitizer/78106
* gcc.dg/asan/pr78106.c: New test.

From-SVN: r241511

Fix 2 typos in IPA ICF pass

* gcc.dg/ipa/ipa-icf-32.c: Removed one scanned pattern.
    Martin Liska  <mliska@suse.cz>

PR ipa/78099
* common.opt: Mark flag_ipa_icf_variables as Optimization flag.
* ipa-icf.c (sem_function::get_hash): Add target optimization
node to hash.

From-SVN: r241510

* parser.c (cp_parser_postfix_expression): Adding missing break;.

From-SVN: r241509

With -fpu=neon DI mode shifts are expanded after reload.

With -fpu=neon DI mode shifts are expanded after reload.  DI mode registers can
either fully or partially overlap on both ARM and Thumb-2.  However the shift
expansion code can only deal with the full overlap case, and generates incorrect
code for partial overlaps.  The fix is to add new variants that support either
full overlap or no overlap.

    gcc/
PR target/78041
* config/arm/neon.md (ashldi3_neon): Add "r 0 i" and "&r r i" variants.
Remove partial overlap check for shift by 1.
(ashldi3_neon): Likewise.
    testsuite/
* gcc.target/arm/pr78041.c: New test.

From-SVN: r241508

constraints.md (Q constraint): Document its use for Thumb-1.

2016-10-25  Thomas Preud'homme  <thomas.preudhomme@arm.com>

    gcc/
    * config/arm/constraints.md (Q constraint): Document its use for
    Thumb-1.
    (Pf constraint): New constraint for relaxed, consume or relaxed memory
    models.
    * config/arm/sync.md (atomic_load<mode>): Add new ARMv8-M Baseline only
    alternatives to allow any register when memory model matches Pf and
    thus lda is used, but only low registers otherwise.  Use unpredicated
    output template for Thumb-1 targets.
    (atomic_store<mode>): Likewise for stl.
    (arm_load_exclusive<mode>): Add new ARMv8-M Baseline only alternative
    whose output template does not have predication.
    (arm_load_acquire_exclusive<mode>): Likewise.
    (arm_load_exclusivesi): Likewise.
    (arm_load_acquire_exclusivesi): Likewise.
    (arm_store_release_exclusive<mode>): Likewise.
    (arm_store_exclusive<mode>): Use unpredicated output template for
    Thumb-1 targets.

From-SVN: r241507

internal-fn.def (LAUNDER): New internal function.

* internal-fn.def (LAUNDER): New internal function.
* internal-fn.c (expand_LAUNDER): New function.
c-family/
* c-common.h (enum rid): Add RID_BUILTIN_LAUNDER.
* c-common.c (c_common_reswords): Add __builtin_launder.
cp/
* cp-tree.h (finish_builtin_launder): Declare.
* parser.c (cp_parser_postfix_expression): Handle RID_BUILTIN_LAUNDER.
* semantics.c (finish_builtin_launder): New function.
* pt.c (tsubst_copy_and_build): Handle instantiation of IFN_LAUNDER.
* constexpr.c (cxx_eval_internal_function): Handle IFN_LAUNDER.
(potential_constant_expression_1): Likewise.
testsuite/
* g++.dg/cpp1z/launder1.C: New test.
* g++.dg/cpp1z/launder2.C: New test.

From-SVN: r241506

Typo.

From-SVN: r241505

New avt target pass to work around performance loss by PR fix.

gcc/
New avt target pass to work around performance loss by PR fix.
PR target/71676
PR target/71678
* config/avr/avr.md (casesi_<mode>_sequence) [qi,hi]: New insn.
(*cmp<mode>) [qi,qq,uqq,hi,hq,uhq,ha,uha]: Rename to cmp<mode>3.
* config/avr/predicates.md (extend_operator): New.
* config/avr/avr-passes.def (avr_pass_casesi): Register new pass.
* config/avr/avr-protos.h (avr_casei_sequence_check_operands)
(make_avr_pass_casesi): New prototypes.
* config/avr/avr.c (print-rtl.h): Include it.
(pass_data avr_pass_data_casesi): Data for new pass.
(avr_pass_casesi): New class implementing rtl_opt_pass .avr-casesi.
(make_avr_pass_casesi, avr_parallel_insn_from_insns)
(avr_is_casesi_sequence, avr_casei_sequence_check_operands)
(avr_optimize_casesi): New functions.
gcc/testsuite/
PR target/71676
PR target/71678
* gcc.target/avr/pr71676-2.c: New test.

From-SVN: r241504

re PR target/71676 ([avr] casesi won't handle switch values larger than 16 bits)

gcc/
PR target/71676
PR target/71678
* config/avr/avr.md (casesi): Rewrite avoiding subregs of SI.
gcc/testsuite/
PR target/71676
PR target/71678
* gcc.target/avr/pr71676-1.c: New test.
* gcc.target/avr/pr71676-3.c: New test.
* gcc.target/avr/pr71676.c: New test.
* gcc.target/avr/pr71678.c: New test.

Co-Authored-By: Pitchumani Sivanupandi <pitchumani.sivanupandi@microchip.com>
From-SVN: r241503

Daily bump.

From-SVN: r241502

test_frame_common.h: Add noclone attribute such that cloned verions of tested functions are not created.

gcc/testsuite/ChangeLog:

2016-10-24  Kugan Vivekanandarajah  <kuganvi@linaro.org>

* gcc.target/aarch64/test_frame_common.h: Add noclone attribute
such that cloned verions of tested functions are not created.

From-SVN: r241499

re PR libfortran/77828 (Linking gfortran-7 compiled program with libgfortran of 5.x allowed but crashes when containing write to string)

2016-10-24  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

PR fortran/77828
* io/io.h (st_parameter_dt): Reorder for readability and sanity.
* io/transfer.c (data_transfer_init): Remove TODO and enable the
runtime error message, rec= specifier not allowed in STREAM
access.
* libtool-version: Bump major version of libgfortran to 4.

* ioparm.def: Reorder dt parameters to match libgfortran.
* libgfortran.h: Swap definitions of GFC_INTERNAL_UNIT and
GFC_INTERNAL_UNIT4.

From-SVN: r241497

re PR fortran/71895 (ICE in gfc_compare_derived_types, at fortran/interface.c:520)

2016-10-24  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/71895
* interface.c (gfc_compare_derived_types):  Convert gcc_assert()
to a gfc_internal_error() to prevent an ICE.

2016-10-24  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/71895
* gfortran.dg/pr71895.f90: New test.

From-SVN: r241493

dwarf2out.c (gen_subprogram_die): Add DW_AT_reference or DW_AT_rvalue_reference attributes.

* dwarf2out.c (gen_subprogram_die): Add DW_AT_reference or
DW_AT_rvalue_reference attributes.

* cp-objcp-common.c (cp_decl_dwarf_attribute): Handle DW_AT_reference
and DW_AT_rvalue_reference.

* g++.dg/debug/dwarf2/ref-2.C: New test.

From-SVN: r241492

PR libgcc/78064: Add missing include directive to unwind-c.c

PR libgcc/78064
* unwind-c.c: Include auto-target.h.

From-SVN: r241491

c-common.c (c_common_truthvalue_conversion): Warn for multiplications in boolean context.

2016-10-24  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * c-common.c (c_common_truthvalue_conversion): Warn for
        multiplications in boolean context.  Fix the quoting of '<<' and '<'
        in the shift warning.

gcc:
2016-10-24  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * doc/invoke.text (Wint-in-bool-context): Update documentation.
        * value-prof.c (stringop_block_profile): Fix a warning.

testsuite:
2016-10-24  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * c-c++-common/Wint-in-bool-context-3.c: New test.

From-SVN: r241490

PR middle-end/77735 - FAIL: gcc.dg/tree-ssa/builtin-sprintf-warn-1.c

gcc/ChangeLog:

PR middle-end/77735
* builtins.c (string_length): New function.
(c_strlen): Use string_length.  Correctly handle wide strings.
* gimple-ssa-sprintf.c (target_max_value, target_size_max): New
functions.
(target_int_max): Call target_max_value.
(format_result::knownrange): New data member.
(fmtresult::fmtresult): Define default constructor.
(format_integer): Use it and set format_result::knownrange.
Handle global constants.
(format_floating_max): Add third argument.
(format_floating): Recompute maximum value for %a for each argument.
(get_string_length): Use fmtresult default ctor.
(format_string): Set format_result::knownrange.
(format_directive): Check format_result::knownrange.
(add_bytes): Same.  Correct caret placement in diagnostics.
(pass_sprintf_length::compute_format_length): Set
format_result::knownrange.
(pass_sprintf_length::handle_gimple_call): Use target_size_max.

gcc/testsuite/ChangeLog:

PR middle-end/77735
* gcc.dg/tree-ssa/builtin-sprintf-2.c: Add test cases.
* gcc.dg/tree-ssa/builtin-sprintf-warn-1.c: Same.
* gcc.dg/tree-ssa/builtin-sprintf-warn-2.c: Same.
* gcc.dg/tree-ssa/builtin-sprintf-warn-3.c: Adjust/relax.
* gcc.dg/tree-ssa/builtin-sprintf-warn-4.c: Add test cases.
* gcc.dg/tree-ssa/builtin-sprintf-warn-6.c: XFAIL for LP64 only.
* gcc.dg/tree-ssa/builtin-sprintf.c: Add test cases.

From-SVN: r241489

Fix error handling in filesystem::is_empty

* src/filesystem/ops.cc (is_empty): Fix error handling.
* testsuite/experimental/filesystem/operations/is_empty.cc: New test.

From-SVN: r241488

PR71337 fix filesystem::temp_directory_path error handling

PR libstdc++/71337
* src/filesystem/ops.cc (temp_directory_path): Pass error_code
argument to other filesystem operations.
* testsuite/experimental/filesystem/operations/temp_directory_path.cc:
Add testcase for inaccessible directory.

From-SVN: r241487

Make directory iterators become end iterator on error

* src/filesystem/dir.cc (open_dir): Return same value for errors
whether ignored or not.
(_Dir::advance(error_code*, directory_options)): Return false on
error.
(directory_iterator(const path&, directory_options, error_code*)):
Create end iterator on error (LWG 2723).
(recursive_directory_iterator(const path&, directory_options,
error_code*)): Likewise.
* testsuite/experimental/filesystem/iterators/directory_iterator.cc:
Update expected behaviour on error.
* testsuite/experimental/filesystem/iterators/
recursive_directory_iterator.cc: Likewise.

From-SVN: r241486

Do not retry failed close(3) in filesystem::copy

* src/filesystem/ops.cc (close_fd): Remove.
(do_copy_file): Just use close(3) instead of close_fd, to prevent
retrying on error.

From-SVN: r241485

Implement DR resolutions for filesystem::copy

* src/filesystem/ops.cc (do_copy_file): Return an error if either
source or destination is not a regular file.
(copy): Update comment to refer to LWG 2681. Implement 2682 and 2683
resolutions.
(read_symlink): Add missing ec.clear().
* testsuite/experimental/filesystem/operations/copy.cc: Update
expected behaviour for copying directories with create_symlinks.
Verify that error_code arguments are cleared if there's no error.
* testsuite/experimental/filesystem/operations/read_symlink.cc: New.

From-SVN: r241484

download_prerequisites: Conditionally verify checksums of downloaded pacakges.

2016-10-24  Moritz Klammler  <moritz@glammler.eu>

* download_prerequisites: Conditionally verify checksums of
downloaded pacakges.  Add help text.
* prerequisites.md5: New file.
* prerequisites.sha512: New file.

From-SVN: r241483

trans-intrinsic.c (gfc_conv_intrinsic_minmax): Use VAR_P (x) instead of TREE_CODE (x) == VAR_DECL.

* trans-intrinsic.c (gfc_conv_intrinsic_minmax): Use VAR_P (x)
instead of TREE_CODE (x) == VAR_DECL.
* trans-expr.c (gfc_class_vptr_get, gfc_class_len_get,
gfc_class_len_or_zero_get, gfc_get_vptr_from_expr,
gfc_conv_string_length, conv_base_obj_fcn_val,
gfc_conv_procedure_call, gfc_trans_assignment_1): Likewise.
* trans-openmp.c (gfc_omp_predetermined_sharing,
gfc_omp_disregard_value_expr, gfc_omp_private_debug_clause,
gfc_trans_omp_atomic, gfc_trans_omp_do): Likewise.
* trans-io.c (nml_get_addr_expr): Likewise.
* trans-decl.c (gfc_finish_decl, gfc_build_qualified_array,
gfc_get_symbol_decl, gfc_get_fake_result_decl,
gfc_trans_deferred_vars, gfc_trans_use_stmts,
generate_local_decl): Likewise.
* trans-array.c (trans_array_constructor, trans_array_bound_check,
build_class_array_ref, gfc_array_init_size,
gfc_trans_auto_array_allocation, gfc_trans_g77_array,
gfc_trans_dummy_array_bias, gfc_alloc_allocatable_for_assignment,
gfc_trans_deferred_array): Likewise.
* trans.c (gfc_build_array_ref): Likewise.  Use
VAR_OR_FUNCTION_DECL_P (x) instead of TREE_CODE (x) == VAR_DECL
|| TREE_CODE (x) == FUNCTION_DECL.

From-SVN: r241482

i386.c (ix86_in_large_data_p, [...]): Use VAR_P (x) instead of TREE_CODE (x) == VAR_DECL.

* config/i386/i386.c (ix86_in_large_data_p, ix86_expand_builtin): Use
VAR_P (x) instead of TREE_CODE (x) == VAR_DECL.

From-SVN: r241481

cxx-pretty-print.c (pp_cxx_check_constraint): Use VAR_P (x) instead of TREE_CODE (x) == VAR_DECL.

* cxx-pretty-print.c (pp_cxx_check_constraint): Use VAR_P (x)
instead of TREE_CODE (x) == VAR_DECL.
* constraint.cc (get_concept_definition): Likewise.
(finish_shorthand_constraint): Likewise.
* init.c (warn_placement_new_too_small): Likewise.
* cp-gimplify.c (cp_genericize_r): Likewise.

From-SVN: r241480

Cross-port exception-safety and move fixes of std::any to std::experimental::any.

Cross-port exception-safety and move fixes of std::any to
std::experimental::any.
* include/experimental/any (operator=(const any&)):
Make strongly exception-safe.
(operator=(any&&)): clear() unconditionally in the case where
rhs has a value.
(_Manager_internal<_Tp>::_S_manage): Move in _Op_xfer, don't copy.
* testsuite/experimental/any/assign/2.cc: Adjust.
* testsuite/experimental/any/assign/exception.cc: New.
* testsuite/experimental/any/cons/2.cc: Adjust.
* testsuite/experimental/any/misc/any_cast_neg.cc: Ajust.

From-SVN: r241479

re PR testsuite/71491 (gcc.dg/vect/slp-43.c FAILs)

2016-10-24  Richard Biener  <rguenther@suse.de>

PR testsuite/71491
* gcc.dg/vect/slp-43.c: Adjust for !vect_hw_misalign.
* gcc.dg/vect/slp-45.c: Likewise.

From-SVN: r241478

Cross-port the latest resolution of LWG2756 and some bug-fixes to experimental::optional.

Cross-port the latest resolution of LWG2756 and some
bug-fixes to experimental::optional.
PR libstdc++/77288
PR libstdc++/77727
* include/experimental/optional (_Optional_base):
Remove constructors that take a _Tp.
(__is_optional_impl, __is_optional): Remove.
(__converts_from_optional): New.
(optional(_Up&&)): Fix constraints, call base with in_place.
(optional(const optional<_Up>&)): Fix constraints, use emplace.
(optional(optional<_Up>&&)): Likewise.
(operator=(_Up&&)): Fix constraints.
(operator=(const optional<_Up>&)): Likewise.
(operator=(optional<_Up>&&)): Likewise.
(emplace(_Args&&...)): Constrain.
(emplace(initializer_list<_Up>, _Args&&...)): Likewise.
* testsuite/experimental/optional/77288.cc: New.
* testsuite/experimental/optional/assignment/5.cc: Adjust.
* testsuite/experimental/optional/cons/77727.cc: New.
* testsuite/experimental/optional/cons/value.cc: Adjust.

From-SVN: r241476

Make vector::data() return type consistent in C++98

* include/bits/stl_vector.h (vector::_M_data_ptr, vector::data):
Change return type of non-standard C++98 extension to match C++11.

From-SVN: r241475

re PR debug/77985 (DW_AT_comp_dir is omitted when filename is absolute and the file does not contain a specific typedef)

2016-10-24  Ximin Luo  <infinity0@pwned.gg>

PR debug/77985
* dwarf2out.c (file_table_relative_p): Remove.
(gen_compile_unit_die, dwarf2out_early_finish): Emit DW_AT_comp_dir
also for absolute paths.
* doc/tm.texi: Update.
* doc/tm.texi.in (SDB and DWARF) <TARGET_FORCE_AT_COMP_DIR>: Remove.
* target.def (force_at_comp_dir): Remove hook.
* config/darwin.h (TARGET_FORCE_AT_COMP_DIR): Remove define.

From-SVN: r241473

Remove dead wood from trans-expr.c

From-SVN: r241472

[check_GNU_style.sh] More aggressively ignore dg-xxx directives

* check_GNU_style.sh (remove_testsuite): New function.
Use it to remove testsuite from the diff.

From-SVN: r241471

tree-vrp.c (evrp_dom_walker::before_dom_children): Ignore backedges when identifying the single predecessor to take conditional...

2016-10-24  Richard Biener  <rguenther@suse.de>

* tree-vrp.c (evrp_dom_walker::before_dom_children): Ignore
backedges when identifying the single predecessor to take
conditional info from.  Use SCEV to get at ranges for loop IVs.
* lto-streamer-out.c (lto_write_mode_table): CSE inner mode to
avoid false warning.

* gcc.dg/tree-ssa/cunroll-13.c: Disable EVRP.
* gcc.dg/tree-ssa/pr21458.c: Likewise.
* gcc.dg/tree-ssa/pr21458-2.c: New testcase for EVRP.

From-SVN: r241470

Parallelize check-gnat

* gcc-interface/Make-lang.in (lang_checks_parallelized): New target.
(check_gnat_parallelize): Likewise.

From-SVN: r241469

re PR target/78093 ([avr] New variable attribute "absdata" and option "-mabsdata" to enable LDS / STS on Reduced Tiny)

gcc/
PR target/78093
* doc/extend.texi (AVR Variable Attributes) [absdata]: Document it.
* config/avr/avr.c (AVR_SYMBOL_FLAG_TINY_ABSDATA): New macro.
(avr_address_tiny_absdata_p): New static function.
(avr_legitimate_address_p, avr_legitimize_address) [AVR_TINY]: Use
it to determine validity of constant addresses.
(avr_attribute_table) [absdata]: New variable attribute...
(avr_handle_absdata_attribute): ...and handler.
(avr_decl_absdata_p): New static function.
(avr_encode_section_info) [AVR_TINY]: Use it to add flag
AVR_SYMBOL_FLAG_TINY_ABSDATA to respective symbols_refs.
(avr_address_cost) [AVR_TINY]: absdata addresses cost 2.
gcc/testsuite/
PR target/78093
* lib/target-supports.exp (check_effective_target_avr_tiny): New proc.
* gcc.target/avr/torture/tiny-absdata-1.c: New test.

From-SVN: r241468

re PR tree-optimization/78076 (Conditional jump or move depends on uninitialised value @ tree-vect-loop.c:2307)

2016-10-24  Richard Biener  <rguenther@suse.de>

PR tree-optimization/78076
* tree-ssa-loop-split.c (tree_ssa_split_loops): Reset aux
also on the loop tree root.

From-SVN: r241467

pure-code.exp: Restore saved globals.

2016-10-24  Andre Vieira  <andre.simoesdiasvieira@arm.com>

* gcc.target/arm/pure-code/pure-code.exp: Restore saved globals.

From-SVN: r241466

i386.c (ix86_fold_builtin): Handle IX86_BUILTIN_BEXTR{,I}{32,64}...

* config/i386/i386.c (ix86_fold_builtin): Handle
IX86_BUILTIN_BEXTR{,I}{32,64}, IX86_BUILTIN_BZHI{32,64},
IX86_BUILTIN_PDEP{32,64} and IX86_BUILTIN_PEXT{32,64}.
(ix86_gimple_fold_builtin): Handle IX86_BUILTIN_BZHI{32,64},
IX86_BUILTIN_PDEP{32,64} and IX86_BUILTIN_PEXT{32,64}.

* gcc.target/i386/bmi2-pext-1.c: New test.
* gcc.target/i386/bmi2-pdep-1.c: New test.
* gcc.target/i386/bmi2-bzhi-3.c: New test.
* gcc.target/i386/tbm-bextri-1.c: New test.
* gcc.target/i386/bmi-bextr-6.c: New test.

From-SVN: r241465

Work around 32-bit i386 STV testcases failing with -mstackrealign (PR target/77483)

PR target/77483
* gcc.target/i386/mask-unpack.c (dg-options): Add -mno-stackrealign.
* gcc.target/i386/pr65105-1.c: Likewise.
* gcc.target/i386/pr65105-2.c: Likewise.
* gcc.target/i386/pr65105-3.c: Likewise.
* gcc.target/i386/pr65105-5.c: Likewise.
* gcc.target/i386/pr67761.c: Likewise.
* gcc.target/i386/pr70799-1.c: Likewise.

From-SVN: r241464

Do not disable aggressive loop opts for

PR sanitizer/77966
* opts.c (finish_options): Skip conditionally.
PR sanitizer/77966
* c-c++-common/ubsan/unreachable-3.c: New test.

From-SVN: r241463

Daily bump.

From-SVN: r241460

PR target/77837 - missing -Wformat-length warning for %p with null argument on powerpc64

gcc/ChangeLog:

PR target/77837
* config/rs6000/linux.h (TARGET_PRINTF_POINTER_FORMAT): Define.
* config/rs6000/linux64.h (TARGET_PRINTF_POINTER_FORMAT): Likewise.

From-SVN: r241457

re PR fortran/77763 (ICE in parse_struct_map, at fortran/parse.c:3064)

2016-10-23  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/77763
* parse.c (parse_spec): Allow STRUCTURE in BLOCK DATA.  Sort
case labels.

2016-10-23  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/77763
* gfortran.dg/pr77763.f90

From-SVN: r241454

sparc.md (cpu_feature): Minor tweak.

* config/sparc/sparc.md (cpu_feature): Minor tweak.
(enabled): Likewise.
(movsi_insn, movdi_insn_sp32, movdi_insn_sp64, movsf_insn,
movdf_insn_sp32, movdf_insn_sp64, zero_extendsidi2_insn_sp64,
sign_extendsidi2_insn, mov<VM32:mode>_insn, mov<VM64:mode>_insn_sp64,
mov<VM64:mode>_insn_sp32, not_<code><mode>, nand<mode>_vis,
<code>_not1<mode>_vi, <code>_not2<mode>_vis, one_cmpl<mode>2,
fcmp<code><GCM:gcm_name>, pdistn<mode>_vis): Likewise.

From-SVN: r241452

re PR fortran/54730 (ICE in gfc_typenode_for_spec, at fortran/trans-types.c:1066)

2016-10-23  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/54730
PR fortran/78033
* array.c (gfc_match_array_constructor): Remove checkpointing
introduced in r196416 (original fix for PR fortran/54730).  Move
initialization to top of function.
* match.c (gfc_match_type_spec): Special case matching for REAL.

2016-10-23  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/54730
PR fortran/78033
* gfortran.dg/pr78033.f90: New test.

From-SVN: r241451

re PR fortran/69834 ([OOP] Collision in derived type hashes)

2016-10-23  Paul Thomas  <pault@gcc.gnu.org>

PR fortran/69834
* class.c (gfc_find_derived_vtab): Obtain the gsymbol for the
derived type's module. If the gsymbol is present and the top
level namespace corresponds to a module, use the gsymbol name
space. In the search to see if the vtable exists, try the gsym
namespace first.
* dump-parse-tree (show_code_node): Modify select case dump to
show select type construct.
* resolve.c (build_loc_call): New function.
(resolve_select_type): Add check for repeated type is cases.
Retain selector expression and use it later instead of expr1.
Exclude deferred length TYPE IS cases and emit error message.
Store the address for the vtable in the 'low' expression and
the hash value in the 'high' expression, for each case. Do not
call resolve_select.
* trans.c(trans_code) : Call gfc_trans_select_type.
* trans-stmt.c (gfc_trans_select_type_cases): New function.
(gfc_trans_select_type): New function.
* trans-stmt.h : Add prototype for gfc_trans_select_type.

2016-10-23  Paul Thomas  <pault@gcc.gnu.org>

PR fortran/69834
* gfortran.dg/select_type_1.f03: Change error for overlapping
TYPE IS cases.
* gfortran.dg/select_type_36.f03: New test.

From-SVN: r241450

sparc-c.c (sparc_target_macros): Replace TARGET_64BIT with TARGET_ARCH64.

* config/sparc/sparc-c.c (sparc_target_macros): Replace TARGET_64BIT
with TARGET_ARCH64.  Define __VIS to 0x400 if TARGET_VIS4.

From-SVN: r241446

2016-10-22  François Dumont  <fdumont@gcc.gnu.org>

* include/bits/c++config (_GLIBCXX_BEGIN_NAMESPACE_ALGO)
(_GLIBCXX_END_NAMESPACE_ALGO): Default to respectively
_GLIBCXX_BEGIN_NAMESPACE_VERSION and _GLIBCXX_END_NAMESPACE_VERSION.
(_GLIBCXX_BEGIN_NAMESPACE_CONTAINER, _GLIBCXX_END_NAMESPACE_CONTAINER):
Likewise.

From-SVN: r241445

Daily bump.

From-SVN: r241444

* gcc.dg/tree-ssa/pr71347.c: Remove XFAIL on SPARC.

From-SVN: r241441

re PR fortran/78021 (Wrong result with optimization on character constant)

2016-10-22  Thomas Koenig  <tkoenig@gcc.gnu.org>

PR fortran/78021
* gfc_compare_functions:  Strings with different lengths in
argument lists compare unequal.

2016-10-22  Thomas Koenig  <tkoenig@gcc.gnu.org>

PR fortran/78021
* gfortran.dg/string_length_3.f90:  New test.

From-SVN: r241440

re PR fortran/43366 ([OOP][F08] Intrinsic assign to polymorphic variable)

gcc/fortran/ChangeLog:

2016-10-22  Andre Vehreschild  <vehre@gcc.gnu.org>

PR fortran/43366
PR fortran/51864
PR fortran/57117
PR fortran/61337
PR fortran/61376
* primary.c (gfc_expr_attr): For transformational functions on classes
get the attrs from the class argument.
* resolve.c (resolve_ordinary_assign): Remove error message due to
feature implementation.  Rewrite POINTER_ASSIGNS to ordinary ones when
the right-hand side is scalar class object (with some restrictions).
* trans-array.c (trans_array_constructor): Create the temporary from
class' inner type, i.e., the derived type.
(build_class_array_ref): Add support for class array's storage of the
class object or the array descriptor in the decl saved descriptor.
(gfc_conv_expr_descriptor): When creating temporaries for class objects
add the class object's handle into the decl saved descriptor.
(structure_alloc_comps): Use the common way to get the _data component.
(gfc_is_reallocatable_lhs): Add notion of allocatable class objects.
* trans-expr.c (gfc_find_and_cut_at_last_class_ref): Remove the only ref
only when the expression's type is BT_CLASS.
(gfc_trans_class_init_assign): Correctly handle class arrays.
(gfc_trans_class_assign): Joined into gfc_trans_assignment_1.
(gfc_conv_procedure_call): Support for class types as arguments.
(trans_get_upoly_len): For unlimited polymorphics retrieve the _len
component's tree.
(trans_class_vptr_len_assignment): Catch all ways to assign the _vptr
and _len components of a class object correctly.
(pointer_assignment_is_proc_pointer): Identify assignments of
procedure pointers.
(gfc_trans_pointer_assignment): Enhance support for class object pointer
assignments.
(gfc_trans_scalar_assign): Removed assert.
(trans_class_assignment): Assign to a class object.
(gfc_trans_assignment_1): Treat class objects correctly.
(gfc_trans_assignment): Propagate flags to trans_assignment_1.
* trans-stmt.c (gfc_trans_allocate): Use gfc_trans_assignment now
instead of copy_class_to_class.
* trans-stmt.h: Function prototype removed.
* trans.c (trans_code): Less special casing for class objects.
* trans.h: Added flags to gfc_trans_assignment () prototype.

gcc/testsuite/ChangeLog:

2016-10-22  Andre Vehreschild  <vehre@gcc.gnu.org>

        Forgot to add on original commit.
        * gfortran.dg/coarray_alloc_comp_2.f08: New test.

2016-10-22  Andre Vehreschild  <vehre@gcc.gnu.org>

PR fortran/43366
PR fortran/57117
PR fortran/61337
* gfortran.dg/alloc_comp_class_5.f03: New test.
* gfortran.dg/class_allocate_21.f90: New test.
* gfortran.dg/class_allocate_22.f90: New test.
* gfortran.dg/realloc_on_assign_27.f08: New test.

From-SVN: r241439

Ignore perms::symlink_nofollow on non-symlinks

* src/filesystem/ops.cc (permissions(const path&, perms, error_code&)):
Ignore symlink_nofollow flag if file is not a symlink.
* testsuite/experimental/filesystem/operations/permissions.cc: Test
symlink_nofollow on non-symlinks.

From-SVN: r241438

aarch64-cores.def: Rewrite so IMP and PART are integer constants.

2016-10-21  Andrew Pinski  <apinski@cavium.com>

        * config/aarch64/aarch64-cores.def: Rewrite so IMP and PART are
        integer constants.
        * config/aarch64/driver-aarch64.c (struct aarch64_core_data): Change
        implementer_id to unsigned char.
        Change part_no to unsigned int.
        (AARCH64_BIG_LITTLE): New define.
        (INVALID_IMP): New define.
        (INVALID_CORE): New define.
        (cpu_data): Change the last element's implementer_id and part_no to
        integers.
        (valid_bL_string_p): Rewrite to ..
        (valid_bL_core_p): this for integers instead of strings.
        (parse_field): New function.
        (contains_string_p): Rewrite to ...
        (contains_core_p): this for integers and only for the part_no.
        (host_detect_local_cpu): Rewrite handling of implementation and
        par num to be integers; simplifying the code.

From-SVN: r241437

Daily bump.

From-SVN: r241436

libgo: keep c0 and c1 out of runtime.inc

    The constants named c0 and c1 turn up as macros in runtime.inc.  This
    reportedly breaks building on Solaris 11, where there is a system struct
    that has a field named c1.  The constants aren't needed by the runtime C
    code, so avoid the problem by grepping them out.

    Reviewed-on: https://go-review.googlesource.com/31730

From-SVN: r241432

libgo: leave Int64Align as 8 on 32-bit SPARC

    Verified by testing on SPARC Solaris.

    Reviewed-on: https://go-review.googlesource.com/31675

From-SVN: r241430

re PR tree-optimization/71947 (x ^ y not folded to 0 if x == y by DOM)

* PR tree-optimization/71947
* gcc.dg/tree-ssa/pr71947-4.c: Avoid x86 opcode.
* gcc.dg/tree-ssa/pr71947-5.c: Likewise.
* gcc.dg/tree-ssa/pr71947-6.c: Make it opt-in rather than opt-out.

From-SVN: r241429

ADDR_EXPR and nonnull

ADDR_EXPR and nonnull
gcc/ChangeLog:

2016-10-21  Kugan Vivekanandarajah  <kuganv@linaro.org>

* ipa-prop.c (ipa_compute_jump_functions_for_edge): Create nonzero
value range for pointers in more cases.

gcc/testsuite/ChangeLog:

2016-10-21  Kugan Vivekanandarajah  <kuganv@linaro.org>

* gcc.dg/ipa/vrp5.c: New test.
* gcc.dg/ipa/vrp6.c: New test.

From-SVN: r241428

runtime: copy lfstack code from Go 1.7 runtime

    Note that lfstack_64bit.go was modified for Solaris support in a
    different, and better, way than the superseded lfstack.goc code.

    Reviewed-on: https://go-review.googlesource.com/31673

From-SVN: r241427

re PR c++/77656 (64-bit integral template parameter gets incorrectly sized as 32-bits)

PR c++/77656
* pt.c (convert_template_argument): Call convert_nontype_argument
on value-dependent but not type-dependent arguments.
(convert_nontype_argument): Handle value-dependent arguments.
(canonicalize_expr_argument): New.
(deducible_expression, unify): Skip CONVERT_EXPR.
* error.c (dump_template_argument): Likewise.
* mangle.c (write_expression): Likewise.

From-SVN: r241425

* ptree.c (cxx_print_xnode) [TEMPLATE_PARM_INDEX]: Dump the decl.

From-SVN: r241424

re PR libfortran/78055 (Many new gfortran test failures)

2016-10-21  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

PR libfortran/78055
* io/io.h (st_parameter_dt): Restore GFC_IO_INT to maintain
alignment.

From-SVN: r241422

Really add the test this time...

    testsuite/
* gcc.target/aarch64/test_frame_17.c: New test.

From-SVN: r241421

Improve stack adjustment by reusing a temporary move immediate from the epilog...

Improve stack adjustment by reusing a temporary move immediate from the epilog
if the register is still valid in the epilog.  This generates smaller code for
leaf functions with a stack size of more then 4KB.

gcc/
* config/aarch64/aarch64.c (aarch64_add_constant_internal):
Add extra argument to allow emitting the move immediate.
Use add/sub with positive immediate.
(aarch64_add_constant): Add inline function.
(aarch64_add_sp): Likewise.
(aarch64_sub_sp): Likewise.
(aarch64_expand_prologue): Call aarch64_sub_sp.
(aarch64_expand_epilogue): Call aarch64_add_sp.
Decide when to leave out move.
(aarch64_output_mi_thunk): Call aarch64_add_constant.

testsuite/
* gcc.target/aarch64/test_frame_17.c: New test.

From-SVN: r241420

If the number of integer callee-saves is odd, any FP callee-saves use 8-byte aligned LDP/STP.

If the number of integer callee-saves is odd, any FP callee-saves use 8-byte
aligned LDP/STP.  Since 16-byte alignment may be faster on some CPUs, align
the FP callee-saves to 16 bytes and use the alignment gap for the last FP
callee-save when possible.

    gcc/
        * config/aarch64/aarch64.c (aarch64_layout_frame):
        Align FP callee-saves.

From-SVN: r241419

LWG2720 implement filesystem::perms::symlink_nofollow

* include/experimental/bits/fs_fwd.h (perms::resolve_symlinks):
Replace with symlink_nofollow (LWG 2720).
* src/filesystem/ops.cc (permissions(const path&, perms, error_code&)):
Handle symlink_nofollow.
* testsuite/experimental/filesystem/operations/create_symlink.cc: New
test.
* testsuite/experimental/filesystem/operations/permissions.cc: Test
overload taking error_code.

From-SVN: r241418

LWG2725 Fix error reporting for filesystem::exists

* include/experimental/bits/fs_ops.h
(exists(const path&, error_code&)): Clear error if status is known
(LWG 2725).
(status(const path&, error_code&)): Handle EOVERFLOW.
* testsuite/experimental/filesystem/operations/exists.cc: Test
overload taking an error_code.

From-SVN: r241417

LWG2707 init filesystem::path from string_type&&

* include/experimental/bits/fs_path.h (path::path(string_type&&))
(path::operator=(string&&), path::assign(string_type&&)): Define
construction and assignment from string_type rvalues (LWG 2707).

From-SVN: r241416

re PR preprocessor/71681 (header.gcc file lookup is broken for -remap)

2016-10-21  Andris Pavenis  <andris.pavenis@iki.fi>

PR preprocessor/71681
* gcc.dg/cpp/pr71681-1.c: New testcase
* gcc.dg/cpp/pr71681-2.c: Likewise
* gcc.dg/cpp/remap/header.gcc: File for added test-cases
* gcc.dg/cpp/remap/a/header.gcc: Likewise
* gcc.dg/cpp/remap/a/t_1.h: Likewise
* gcc.dg/cpp/remap/a/t_2.h: Likewise

From-SVN: r241415

Optimize RNG use in std::sample selection sampling

2016-10-21  Eelis van der Weegen  <eelis@eelis.net>

* include/bits/stl_algo.h (__gen_two_uniform_ints): Move logic out
of shuffle into new function.
(shuffle): Call __gen_two_uniform_ints.
(__sample<ForwardIterator, OutputIterator, Cat, Size, URBG>): Use
__gen_two_uniform_ints and perform two samples at a time.

From-SVN: r241414

re PR preprocessor/71681 (header.gcc file lookup is broken for -remap)

2016-10-21  Andris Pavenis  <andris.pavenis@iki.fi>

PR preprocessor/71681
* files.c (remap_filename): Fix handling -remap in subdirectories.

From-SVN: r241413

adxintrin.h (_subborrow_u32, [...]): Formatting fixes.

* config/i386/adxintrin.h (_subborrow_u32, _addcarry_u32,
_addcarryx_u32, _subborrow_u64, _addcarry_u64, _addcarryx_u64):
Formatting fixes.
* config/i386/rdseedintrin.h (_rdseed16_step, _rdseed32_step,
_rdseed64_step): Likewise.
* config/i386/tbmintrin.h (__bextri_u32): Likewise.

From-SVN: r241412

re PR target/78057 (FAIL: gcc.target/i386/bmi-{4,5,6}.c)

PR target/78057
* config/i386/i386.c: Include fold-const-call.h, tree-vrp.h
and tree-ssanames.h.
(ix86_fold_builtin): Fold IX86_BUILTIN_[LT]ZCNT{16,32,64}
with INTEGER_CST argument.
(ix86_gimple_fold_builtin): New function.
(TARGET_GIMPLE_FOLD_BUILTIN): Define.

* gcc.target/i386/pr78057.c: New test.

From-SVN: r241411

Split <functional> into smaller pieces

* include/Makefile.am: Add <bits/refwrap.h> and <bits/std_function.h>.
Order alphabetically.
* include/Makefile.in: Regenerate.
* include/bits/refwrap.h: New header.
(_Maybe_get_result_type,_Weak_result_type_impl, _Weak_result_type)
(_Reference_wrapper_base_impl, _Reference_wrapper_base)
(reference_wrapper, ref, cref): Move here from <functional>.
* include/bits/shared_ptr_base.h: Include <bits/refwrap.h> and
<bits/stl_function.h> instead of <functional>.
* include/bits/std_function.h: New header.
(_Maybe_unary_or_binary_function, bad_function_call)
(__is_location_invariant, _Nocopy_types, _Any_data)
(_Simple_type_wrapper, _Function_base, _Function_handler, function):
Move here from <functional>.
* include/bits/unique_ptr.h: Include <bits/stl_function.h>.
* include/std/functional: Include new headers and move components to
them.
* include/std/future: Include <bits/std_function.h> instead of
<functional>.
* include/std/mutex: Likewise.
* include/std/regex: Likewise.
* src/c++11/compatibility-thread-c++0x.cc: Include <functional>.
* testsuite/20_util/default_delete/48631_neg.cc: Adjust dg-error line.
* testsuite/20_util/default_delete/void_neg.cc: Likewise.
* testsuite/20_util/unique_ptr/assign/48635_neg.cc: Adjust dg-error
lines.
* testsuite/20_util/unique_ptr/cons/cv_qual_neg.cc: Likewise.
* testsuite/30_threads/packaged_task/49668.cc: Include <functional>.

From-SVN: r241410

dwarf2out.c (ranges_table): Change into vec<dw_ranges, va_gc> *.

* dwarf2out.c (ranges_table): Change into vec<dw_ranges, va_gc> *.
(ranges_by_label): Change into vec<dw_ranges_by_label, va_gc> *.
(ranges_table_allocated, ranges_table_in_use,
ranges_by_label_allocated, ranges_by_label_in_use,
RANGES_TABLE_INCREMENT): Removed.
(add_ranges_num): Use vec_safe_push into ranges_table.
(add_ranges_by_labels): Use vec_safe_push into ranges_by_label.
(output_ranges): Adjust for ranges_table and ranges_by_label
conversion from arrays to vec.
(add_high_low_attributes, dwarf2out_finish): Adjust for range_table
conversion from arrays to vec.
(dwarf2out_c_finalize): Don't clear ranges_table_allocated,
ranges_table_in_use, ranges_by_label_allocated and
ranges_by_label_in_use.  Set ranges_by_label to NULL instead of 0.

From-SVN: r241409

dwarf2out.c (gen_variable_die): Emit DW_AT_const_expr attribute if needed.

* dwarf2out.c (gen_variable_die): Emit DW_AT_const_expr attribute
if needed.  Re-add origin_die variable and its initialization.
cp/
* cp-objcp-common.c (cp_decl_dwarf_attribute): Handle
DW_AT_const_expr.
testsuite/
* g++.dg/debug/dwarf2/constexpr-var-1.C: New test.

From-SVN: r241408

gimplify.c (gimplify_bind_expr): Handle oacc_declare_returns even for -fstack-reuse=none, or for volatile vars etc.

* gimplify.c (gimplify_bind_expr): Handle oacc_declare_returns
even for -fstack-reuse=none, or for volatile vars etc.

From-SVN: r241407

Start adding selftests for print_rtx

gcc/ChangeLog:
* print-rtl-function.c (flag_compact): Move extern decl to...
* print-rtl.h (flag_compact): ...here.
* rtl-tests.c (selftests::assert_rtl_dump_eq): New function.
(ASSERT_RTL_DUMP_EQ): New macro.
(selftest::test_dumping_regs): New function.
(selftest::test_dumping_insns): New function.
(selftest::test_uncond_jump): Add uses of ASSERT_RTL_DUMP_EQ on
the insns.
(selftest::rtl_tests_c_tests): Call the new test functions.

From-SVN: r241405