From-SVN: r267575

When erasing a trailing empty filename component, the output iterator
was not decremented, causing the next component to be created at the
wrong position.

	* src/filesystem/std-path.cc (path::operator+=(const path&)): Fix
	incorrect treatment of empty filename after trailing slash.
	* testsuite/27_io/filesystem/path/concat/path.cc: Test problem case.

From-SVN: r267574

These tests rely on inlining, so if -fno-inline is added to the compiler
flags the tests fail. Use the predefined __NO_INLINE__ macro to detect
that situation, and don't bother testing the move assignment.

	* testsuite/21_strings/basic_string/modifiers/assign/char/
	move_assign_optim.cc: Avoid spurious failure when -fno-inline added
	to test flags.
	* testsuite/21_strings/basic_string/modifiers/assign/wchar_t/
	move_assign_optim.cc: Likewise.

From-SVN: r267573

2019-01-04  Thomas Koenig  <tkoenig@gcc.gnu.org>

    PR fortran/48543
    * gfortran.dg/const_chararacter_merge.f90: Actually remove.
    * gfortran.dg/merge_char_const.f90: Restore.

From-SVN: r267572

	PR target/88594
	* config/i386/i386.c (ix86_expand_divmod_libfunc): Use mode instead
	of GET_MODE (opN) as modes of the libcall arguments.

	* gcc.dg/pr88594.c: New test.

From-SVN: r267571

While their use for masking is indeed restricted to %k1...%k7, use as
"normal" insn operands also permits %k0. Remove the unnecessary
limitations, requiring quite a few testsuite adjustments.

Oddly enough some AVX512{F,DQ} test cases already check for %k[0-7],
while others did permit {%k0} - where they get touched here anyway this
gets fixed at the same time.

From-SVN: r267570

gcc/ChangeLog:
	* calls.c (maybe_warn_nonstring_arg): Avoid assuming maxlen is set.

gcc/testsuite/ChangeLog:
	* gcc.dg/Wstringop-truncation-6.c: New test.

From-SVN: r267569

From-SVN: r267568

2019-01-03  Jonathan Wakely  <jwakely@redhat.com>
	    Jakub Jelinek  <jakub@redhat.com>

	PR libstdc++/88607
	* include/experimental/memory: Replace UTF-8 quote characters.
	* include/std/future: Replace UTF-8 "em dash" characters.

Co-Authored-By: Jakub Jelinek <jakub@redhat.com>

From-SVN: r267565

There are a number of UTF-8 characters in comments which add no value
and can be replaced with ASCII equivalents, or removed entirely for the
section sign (U+00A7).

	PR libstdc++/88607
	* include/bits/forward_list.h: Replace UTF-8 "ligature fi" character.
	* include/debug/forward_list: Likewise.
	* include/experimental/bits/shared_ptr.h: Remove UTF-8 "section sign"
	character.
	* include/experimental/chrono: Likewise.
	* include/experimental/functional: Likewise.
	* include/experimental/ratio: Likewise.
	* include/experimental/system_error: Likewise.
	* include/experimental/tuple: Likewise.
	* include/experimental/type_traits: Likewise.
	* include/parallel/workstealing.h: Replace UTF-8 "en dash" character.
	* include/parallel/multiseq_selection.h: Likewise.

From-SVN: r267564

These new facet functions were added to GCC 5.1 but the versions for the
old std::string ABI were never exported from the shared library.

	PR libstdc++/88681
	* config/abi/pre/gnu.ver: Add missing exports.
	* testsuite/22_locale/collate_byname/88681.cc: New test.
	* testsuite/22_locale/time_get/get/char/88681.cc: New test.
	* testsuite/22_locale/time_get/get/wchar_t/88681.cc: New test.

From-SVN: r267563

2019-01-03  Aaron Sawdey  <acsawdey@linux.ibm.com>

	* config/rs6000/rs6000-string.c (expand_block_move): Don't use
	unaligned vsx and avoid lxvd2x/stxvd2x.
	(gen_lvx_v4si_move): New function.

From-SVN: r267562

Add a couple of test-cases using vector length 128, while checking that we
override to vector length 32.

2019-01-03  Tom de Vries  <tdevries@suse.de>

	* testsuite/libgomp.oacc-c-c++-common/vector-length-128-1.c: New test.
	* testsuite/libgomp.oacc-c-c++-common/vector-length-128-3.c: New test.

From-SVN: r267559

The vector length and maximum number of workers are known compile-time.  Make
these easily available during code generation via new functions.

2019-01-03  Tom de Vries  <tdevries@suse.de>

	* config/nvptx/nvptx.c (MACH_VECTOR_LENGTH, MACH_MAX_WORKERS): Define.
	(init_axis_dim, nvptx_mach_max_workers, nvptx_mach_vector_length): New
	function.
	* config/nvptx/nvptx.h (struct machine_function): Add axis_dims.

From-SVN: r267558

Factor out populate_offload_attrs from nvptx_reorg.

2019-01-03  Tom de Vries  <tdevries@suse.de>

	* config/nvptx/nvptx.c (struct offload_attrs): New.
	(populate_offload_attrs): New function.  Factor mask extraction out of
	nvptx_reorg.  Add extraction of dimensions.
	(nvptx_reorg): Use populate_offload_attrs.

From-SVN: r267557

Add early-out cases for for oacc_min_dims_p and routine_p in
nvptx_goacc_validate_dims, allowing simplification of the rest of the
function.

2019-01-03  Tom de Vries  <tdevries@suse.de>

	* config/nvptx/nvptx.c (nvptx_goacc_validate_dims_1): Add early-out
	cases for oacc_min_dims_p and routine_p.  Add asserts for
	oacc_default_dims_p and offload_region_p.

From-SVN: r267556

The TARGET_GOACC_VALIDATE_DIMS hook requires an implementation to return a bool
indicating whether the dims parameter has changed.

Factor nvptx_goacc_validate_dims_1 out of nvptx_goacc_validate_dims, and
calculate the return value in nvptx_goacc_validate_dims.

2019-01-03  Tom de Vries  <tdevries@suse.de>

	* config/nvptx/nvptx.c (nvptx_goacc_validate_dims_1): New function,
	factored out of ...
	(nvptx_goacc_validate_dims): ... here.

From-SVN: r267555

2019-01-02  Thomas Koenig  <tkoenig@gcc.gnu.org>

    PR fortran/48543
    * gfortran.dg/const_chararacter_merge.f90: Remove.

From-SVN: r267553

2019-01-03  Jan Hubicka  <hubicka@ucw.cz>

	PR tree-optimization/85574
	* tree-ssa-uncprop.c (struct equiv_hash_elt): Remove unused
	structure.
	(struct ssa_equip_hash_traits): Declare.
	(val_ssa_equiv): Use custom hash traits using operand_equal_p.

From-SVN: r267552

	PR target/88535
	* config.guess: Import upstream version 2019-01-03.
	* config.sub: Import upstream version 2019-01-01.

From-SVN: r267551

re PR debug/88644 (Unexpected pub type info eliminated after r246973 (causes pubtypes-*.c to regress).)

	PR debug/88644
	* dwarf2out.c (modified_type_die): If type is equal to sizetype,
	change it to qualified_type.

	* gcc.dg/debug/dwarf2/pr88644.c: New test.
	* gcc.dg/debug/dwarf2/pr80263.c: Remove darwin hack.

2019-01-03  Iain Sandoe  <iain@sandoe.co.uk>

	* gcc.dg/pubtypes-2.c: Adjust expected pubtypes length.
	* gcc.dg/pubtypes-3.c: Likewise.
	* gcc.dg/pubtypes-4.c: Likewise.

From-SVN: r267550

	* ipa-utils.c (scale_ipa_profile_for_fn): Break out from ...
	(ipa_merge_profiles): ... here; do not ICE on thunks and aliases.

From-SVN: r267549

	PR c++/88636
	* decl.c (builtin_function_1): Return result of pushdecl_top_level
	or pushdecl rather than decl.

	* g++.target/i386/pr88636.C: New test.

From-SVN: r267548

/cp
2019-01-03  Paolo Carlini  <paolo.carlini@oracle.com>

	* tree.c (handle_nodiscard_attribute): Improve warning location.

/testsuite
2019-01-03  Paolo Carlini  <paolo.carlini@oracle.com>

	* g++.dg/cpp1z/nodiscard3.C: Test locations too.

From-SVN: r267547

2019-01-03  Martin Liska  <mliska@suse.cz>

	PR testsuite/88436
	* gcc.target/powerpc/pr54240.c: Scan phiopt2.

From-SVN: r267541

From-SVN: r267540

	* gimple-fold.c (strlen_range_kind): Remove SRK_LENRANGE_2.
	(get_range_strlen_tree): Update appropriately.
	(get_range_strlen)
	* gimple-fold.h (get_range_strlen): Drop unused last argument.

Co-Authored-By: Jeff Law <law@redhat.com>

From-SVN: r267537

	* g++.dg/cpp1z/class-deduction60.C: New test.
	* g++.dg/cpp1z/class-deduction61.C: New test.

From-SVN: r267535

	* typeck2.c (build_functional_cast): Try deducing the template
	arguments even if there are no arguments to deduce from.

	* g++.dg/cpp1z/class-deduction59.C: New test.

From-SVN: r267533

	* call.c (convert_for_arg_passing): Only give warnings with tf_warning.
	* typeck.c (convert_for_assignment): Likewise.

	* g++.dg/warn/Waddress-of-packed-member1.C: New test.

From-SVN: r267532

	* gimple-fold.c (gimple_fold_builtin_strlen): Use set_strlen_range
	rather than set_range_info.
	* tree-ssa-strlen.c (set_strlen_range): Extracted from
	maybe_set_strlen_range.  Handle potentially boundary crossing
	cases more conservatively.
	(maybe_set_strlen_range): Parts refactored into set_strlen_range.
	Call set_strlen_range.
	* tree-ssa-strlen.h (set_strlen_range): Add prototype.

	* gcc.dg/strlenopt-36.c: Update.
	* gcc.dg/strlenopt-45.c: Update.
	* gcc.c-torture/execute/strlen-5.c: New test.
	* gcc.c-torture/execute/strlen-6.c: New test.
	* gcc.c-torture/execute/strlen-7.c: New test.

Co-Authored-By: Jeff Law <law@redhat.com>

From-SVN: r267531

	PR testsuite/87304
	* gcc.dg/vect/bb-slp-over-widen-1.c: Expect basic block vectorized
	messages only on vect_hw_misalign targets.

From-SVN: r267528

parse.c (decode_statement): Suppress "Unclassifiable statement" error if previous error messages were emittes.

2019-01-01  Steven G. Kargl  <kargl@gcc.gnu.org>

	* parse.c (decode_statement):  Suppress "Unclassifiable statement"
	error if previous error messages were emittes.
 
2019-01-01  Steven G. Kargl  <kargl@gcc.gnu.org>
 
	* gfortran.dg/argument_checking_7.f90: Remove run-on error message.
	* gfortran.dg/dec_d_lines_3.f: Ditto.
	* gfortran.dg/dec_structure_24.f90: Ditto.
	* gfortran.dg/dec_structure_26.f90: Ditto.
	* gfortran.dg/dec_structure_27.f90: Ditto.
	* gfortran.dg/dec_type_print_3.f90: Ditto.
	* gfortran.dg/derived_name_1.f90: Ditto.
	* gfortran.dg/error_recovery_1.f90: Ditto.
	* gfortran.dg/gomp/pr29759.f90: Ditto.
	* gfortran.dg/pr36192.f90: Ditto.
	* gfortran.dg/pr56007.f90: Ditto.
	* gfortran.dg/pr56520.f90: Ditto.
	* gfortran.dg/pr78741.f90: Ditto.
	* gfortran.dg/print_fmt_2.f90: Ditto.
	* gfortran.dg/select_type_20.f90: Ditto.

From-SVN: r267526

From-SVN: r267521

	PR middle-end/88663
	* gimple-fold.c (get_range_strlen): Update prototype to no longer
	need the flexp argument.
	(get_range_strlen_tree): Drop flexp argument.  Drop flexp argument
	from calls to get_range_strlen.  Update comments.  Just update
	VAL for an unterminated const char array and let the reset of the
	code handle it normally.  No longer try to set *flexp.  Adjust
	return value.
	(get_range_strlen): Update for the new get_range_strlen API.
	(get_maxval_strlen): Similarly.
	(gimple_fold_builtin_strlen): Handle update meaning of return value
	from get_range_strlen.
	* gimple-ssa-sprintf.c (get_string_length): Update for the new
	get_range_strlen API.

Co-Authored-By: Jeff Law <law@redhat.com>

From-SVN: r267520

	PR c++/86875
	* g++.dg/cpp1y/lambda-generic-86875.C: New test.

From-SVN: r267519

This adds additional tests for std::map and std::multimap CTAD. The
tests ensure that deduction works for braced-init-list of value_type
objects, and for pairs of input iterators (with both std::pair<Key, T>
and value_type as the iterator's value_type). This ensures deduction
from value_type still works, as well as the non-value_type cases in LWG
3025.

Similar tests for unordered maps do not work, apparently because the
constructor taking an initializer_list<value_type> is not usable for
deduction, and the deduction guide taking initializer_list<pair<Key, T>>
deduces key_type to be const. I am not addressing that.

	* testsuite/23_containers/map/cons/deduction.cc: Test deduction from
	initializer_list<value_type> and from input iterator ranges.
	* testsuite/23_containers/multimap/cons/deduction.cc: Likewise.

From-SVN: r267518

2019-01-02  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/48543
	* gfortran.dg/const_chararacter_merge.f90: New test.

From-SVN: r267517

	PR lto/88130
	* varpool.c (varpool_node::ctor_useable_for_folding_p): Also return
	false at WPA time when body was removed.
	* g++.dg/torture/pr88130.C: New testcase.

From-SVN: r267515

2019-01-02  Martin Liska  <mliska@suse.cz>

	PR tree-optimization/88650
	* predict.c (set_even_probabilities): Calculate probability
	remainer only when really used.
2019-01-02  Martin Liska  <mliska@suse.cz>

	PR tree-optimization/88650
	* gfortran.dg/predict-3.f90: New test.

From-SVN: r267513