re PR c++/68724 (ice in unify, at cp/pt.c:19902)

PR c++/68724
* pt.c (unify): TRAIT_EXPR is an expr.

PR c++/68724
* g++.dg/cpp0x/pr68724.C: New.

From-SVN: r239167

Use __invoke in std::function internals

* include/std/functional (__callable_functor): Remove.
(_Function_handler::_M_invoke): Use __invoke instead of
__callable_functor or mem_fn.
(function::_Callable): Use lvalue in result_of expression.
(function): Remove TODO comments about allocators.
* testsuite/20_util/function/cons/refqual.cc: New test.

From-SVN: r239166

ivopt_5.c: Make robust against edge swapping.

2016-08-05  Richard Biener  <rguenther@suse.de>

* gcc.dg/tree-ssa/ivopt_5.c: Make robust against edge swapping.

From-SVN: r239165

tree-ssa-threadupdate.c (thread_block_1): Remove unnecessary restriction on threading to a loop header.

2016-08-05  Richard Biener  <rguenther@suse.de>

* tree-ssa-threadupdate.c (thread_block_1): Remove unnecessary
restriction on threading to a loop header.

From-SVN: r239164

tree-cfgcleanup.c (tree_forwarder_block_p): Use bb_loop_header_p.

2016-08-05  Richard Biener  <rguenther@suse.de>

* tree-cfgcleanup.c (tree_forwarder_block_p): Use bb_loop_header_p.
* cfghooks.c (force_nonfallthru): If we ended up splitting a latch
adjust loop info accordingly.

From-SVN: r239163

tree-vrp.c (extract_range_basic): Check cfun->after_inlining before folding call to __builtin_constant_p with...

gcc/ChangeLog:

2016-08-05  Kugan Vivekanandarajah  <kuganv@linaro.org>

* tree-vrp.c (extract_range_basic): Check cfun->after_inlining
before folding call to __builtin_constant_p with parameters to false.

From-SVN: r239162

[RS6000] rs6000_preferred_reload_class

* config/rs6000/rs6000.c (rs6000_preferred_reload_class): Delete
code accidentally committed 2016-05-02 providing class when given
NO_REGS.

From-SVN: r239161

Daily bump.

From-SVN: r239160

Teach VRP to truncate the case ranges of a switch

gcc/ChangeLog:

* tree-vrp.c (simplify_switch_using_ranges): Try to truncate
the case label ranges that partially overlap with OP's value
range.

gcc/testsuite/ChangeLog:

* gcc.dg/tree-ssa/vrp107.c: New test.
* gcc.dg/tree-ssa/vrp108.c: New test.
* gcc.dg/tree-ssa/vrp109.c: New test.

From-SVN: r239157

re PR target/72805 (AVX512: invalid code generation involving masks)

PR target/72805
* config/i386/avx512fintrin.h (_mm512_cmp_epi32_mask) [!__OPTIMIZE__]:
Cast builtin function result to __mmask16 instead of __mmask8.
(_mm512_cmp_epu32_mask) [!__OPTIMIZE__]: Ditto.
(_mm512_mask_cmp_epi32_mask) [!__OPTIMIZE__]: Ditto.
(_mm512_mask_cmp_epu32_mask) [!__OPTIMIZE__]: Ditto.

From-SVN: r239152

selftest.h: Add ASSERT_TRUE_AT and ASSERT_FALSE_AT

gcc/ChangeLog:
* selftest.h (ASSERT_TRUE): Reimplement in terms of...
(ASSERT_TRUE_AT): New macro.
(ASSERT_FALSE): Reimplement in terms of...
(ASSERT_FALSE_AT): New macro.
(ASSERT_STREQ_AT): Fix typo in comment.

From-SVN: r239151

pr70920-4.c: Move dg-require-effective-target before dg-options.

2016-08-04  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

testsuite/
* gcc.dg/pr70920-4.c: Move dg-require-effective-target before
dg-options.

From-SVN: r239150

pr71078-1.c: Remove double and long double test-cases.

2016-08-04  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

testsuite/
* gcc.dg/tree-ssa/pr71078-1.c: Remove double and long double
test-cases.
* gcc.dg/tree-ssa/pr71078-1-double.c: New test-case.
* gcc.dg/tree-ssa/pr71078-1-long-double.c: Likewise.
* gcc.dg/tree-ssa/pr71078-2.c: Remove double and long double
test-cases.
* gcc.dg/tree-ssa/pr71078-2-double.c: New test-case.
* gcc.dg/tree-ssa/pr71078-2-long-double.c: Likewise.
* gcc.dg/tree-ssa/pr71078-3.c: Add require-effective-check for
large_double.

From-SVN: r239149

re PR c++/72800 (ICE on invalid C++14 code with initialized lambda capture: tree check: expected class ‘type’, have ‘exceptional’ (error_mark) in add_capture, at cp/lambda.c:505)

/cp
2016-08-04  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/72800
* lambda.c (add_capture): Check lambda_capture_field_type return
value for error_mark_node.

/testsuite
2016-08-04  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/72800
* g++.dg/cpp1y/lambda-ice1.C: New.

From-SVN: r239148

Fix ICE on invalid variable template instantiation (PR c++/72759)

gcc/cp/ChangeLog:

PR c++/72759
* pt.c (tsubst_qualified_id): Return error_mark_node if
template_args is error_mark_node.

gcc/testsuite/ChangeLog:

PR c++/72759
* g++.dg/cpp1y/pr72759.C: New test.

From-SVN: r239147

Designate the widest case label to be the default label

gcc/ChangeLog:

* gimple.c (preprocess_case_label_vec_for_gimple): When the case
labels are exhaustive, designate the label with the widest
range to be the default label.

gcc/testsuite/ChangeLog:

* gcc.dg/switch-10.c: New test.

From-SVN: r239146

Define std::is_callable and std::is_nothrow_callable

* doc/xml/manual/status_cxx2017.xml: Update status table.
* include/std/functional (__inv_unwrap): Move to <type_traits>.
(__invoke_impl): Remove exception specifications.
(__invoke, invoke): Add exception specifications using
__is_nothrow_callable.
* include/std/type_traits (__inv_unwrap): Move from <functional>.
(__is_callable_impl, __call_is_nt, __call_is_nothrow): New helpers.
(__is_callable, __is_nothrow_callable): New traits.
(is_callable, is_callable_v): New C++17 traits.
(is_nothrow_callable, is_nothrow_callable_v): Likewise.
* testsuite/20_util/is_callable/requirements/
explicit_instantiation.cc: New test.
* testsuite/20_util/is_callable/requirements/
explicit_instantiation_ext.cc: New test.
* testsuite/20_util/is_callable/requirements/typedefs.cc: New test.
* testsuite/20_util/is_callable/requirements/typedefs_ext.cc: New
test.
* testsuite/20_util/is_callable/value.cc: New test.
* testsuite/20_util/is_callable/value_ext.cc: New test.
* testsuite/20_util/is_nothrow_callable/requirements/
explicit_instantiation.cc: New test.
* testsuite/20_util/is_nothrow_callable/requirements/
explicit_instantiation_ext.cc: New test.
* testsuite/20_util/is_nothrow_callable/requirements/typedefs.cc:
New test.
* testsuite/20_util/is_nothrow_callable/requirements/typedefs_ext.cc:
New test.
* testsuite/20_util/is_nothrow_callable/value.cc: New test.
* testsuite/20_util/is_nothrow_callable/value_ext.cc: New test.

From-SVN: r239145

runtime: fix incorrectly commented out code in heapdump.c

    Reviewed-on: https://go-review.googlesource.com/25490

From-SVN: r239144

re PR c++/71696 (Libiberty Demangler segfaults (6))

2016-08-04  Marcel Böhme  <boehme.marcel@gmail.com>

PR c++/71696
* cplus-dem.c: Prevent infinite recursion when there is a cycle
in the referencing of remembered mangled types.
(work_stuff): New stack to keep track of the remembered mangled
types that are currently being processed.
(push_processed_type): New method to push currently processed
remembered type onto the stack.
(pop_processed_type): New method to pop currently processed
remembered type from the stack.
(work_stuff_copy_to_from): Copy values of new variables.
(delete_non_B_K_work_stuff): Free stack memory.
(demangle_args): Push/Pop currently processed remembered type.
(do_type): Do not demangle a cyclic reference and push/pop
referenced remembered type.

From-SVN: r239143

[Patch obvious testsuite] Remove duplicate body from pr70903.c

* gcc.c-torture/execute/pr70903.c: Remove duplicate body.

From-SVN: r239142

text/template: reduce maxExecDepth for gccgo

    When using gccgo on systems without full support for split stacks a
    recursive template can overrun the available stack space.  Reduce the
    limit from 100000 to 10000 to make this less likely.  It's still high
    enough that real uses will work.

    Reviewed-on: https://go-review.googlesource.com/25467

From-SVN: r239141

compiler: include "go-system.h" in escape.cc

    Patch from Rainer Orth.

    Reviewed-on: https://go-review.googlesource.com/25466

From-SVN: r239140

PR c++/72415 - member template with fold-expression constraint

* pt.c (tsubst_pack_expansion): Pull a single pack expansion out
of the TREE_VEC.

From-SVN: r239138

Rename TYPE_ANONYMOUS_P to TYPE_UNNAMED_P.

* cp-tree.h (TYPE_UNNAMED_P): Rename from TYPE_ANONYMOUS_P.
(TYPE_WAS_UNNAMED): Rename from TYPE_WAS_ANONYMOUS.
* class.c, decl.c, decl2.c, error.c, lambda.c, mangle.c,
name-lookup.c, parser.c, pt.c, semantics.c, tree.c: Adjust.

From-SVN: r239137

PR c++/72796 - wrong resolution of scoped method call.

* typeck.c (finish_class_member_access_expr): Avoid stripping
SCOPE_REF to dependent base.

From-SVN: r239136

aarch64.c (thunderx_vector_cost): New variable.

2016-08-04  Andrew Pinski  <apinski@cavium.com>

        * config/aarch64/aarch64.c (thunderx_vector_cost): New variable.
        (thunderx_tunings): Use thunderx_vector_cost instead of
        generic_vector_cost.

From-SVN: r239135

Fix GNU coding style in gcov.c

* gcov.c (main): Fix GNU coding style.
(output_intermediate_file): Likewise.
(process_file): Likewise.
(generate_results): Likewise.
(release_structures): Likewise.
(create_file_names): Likewise.
(find_source): Likewise.
(read_graph_file): Likewise.
(find_exception_blocks): Likewise.
(canonicalize_name): Likewise.
(make_gcov_file_name): Likewise.
(mangle_name): Likewise.
(accumulate_line_counts): Likewise.
(output_branch_count): Likewise.
(read_line): Likewise.

From-SVN: r239134

Rework C/C++ OpenACC routine parsing

gcc/c/
* c-parser.c (struct oacc_routine_data): Add error_seen and
fndecl_seen members.
(c_finish_oacc_routine): Use these.
(c_parser_declaration_or_fndef): Adjust.
(c_parser_oacc_routine): Likewise.  Support more C language
constructs, and improve diagnostics.  Move pragma context
checking...
(c_parser_pragma): ... here.
gcc/cp/
* parser.c (cp_ensure_no_oacc_routine): Improve diagnostics.
(cp_parser_late_parsing_cilk_simd_fn_info): Fix diagnostics.
(cp_parser_late_parsing_oacc_routine, cp_finalize_oacc_routine):
Simplify code, and improve diagnostics.
(cp_parser_oacc_routine): Likewise.  Move pragma context
checking...
(cp_parser_pragma): ... here.
gcc/testsuite/
* c-c++-common/goacc/routine-5.c: Update.

From-SVN: r239128

C/C++: Simplify handling of location information for OpenACC routine directives

gcc/c/
* c-parser.c (struct oacc_routine_data): New.
(c_parser_declaration_or_fndef, c_parser_oacc_routine): Use it.
Simplify code.
(c_finish_oacc_routine): Likewise.  Don't attach clauses to "omp
declare target" attribute.
gcc/cp/
* parser.h (struct cp_omp_declare_simd_data): New.
(struct cp_parser): Use it for oacc_routine member.
* parser.c (cp_ensure_no_oacc_routine, cp_parser_oacc_routine)
(cp_parser_late_parsing_oacc_routine, cp_finalize_oacc_routine):
Use it.  Simplify code.
(cp_parser_new): Initialize all members pointing to special
parsing data structures.
(cp_parser_cilk_simd_fn_vector_attrs): Initialize
parser->cilk_simd_fn_info->clauses.
(cp_parser_omp_declare_simd): Initialize
parser->omp_declare_simd->clauses.
(cp_parser_late_parsing_omp_declare_simd): Simplify code.

From-SVN: r239127

C++ OpenACC routine directive testing: templated, and "auto", trailing return type syntax

libgomp/
* testsuite/libgomp.oacc-c++/routine-1-auto.C: New file.
* testsuite/libgomp.oacc-c++/routine-1-template-auto.C: Likewise.
* testsuite/libgomp.oacc-c++/routine-1-template-trailing-return-type.C:
Likewise.
* testsuite/libgomp.oacc-c++/routine-1-template.C: Likewise.
* testsuite/libgomp.oacc-c++/routine-1-trailing-return-type.C:
Likewise.
* testsuite/libgomp.oacc-c-c++-common/routine-1.c: Adjust.

From-SVN: r239126

Make libgomp.oacc-c-c++-common/crash-1.c a "link" test, and don't hardcode -O0

libgomp/
* testsuite/libgomp.oacc-c-c++-common/crash-1.c: Make it a "link"
test, and don't hardcode -O0.

From-SVN: r239125

Update C++17 library implementation status table

* doc/xml/manual/status_cxx2017.xml: Update C++17 status table.
* doc/html/manual/status.html: Regenerate.

From-SVN: r239124

016-08-04  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR rtl-optimization/71779
        * emit-rtl.c (set_reg_attrs_from_value): Only propagate REG_POINTER,
        if the value was sign-extended according to POINTERS_EXTEND_UNSIGNED
        or if it was truncated.

From-SVN: r239123

re PR target/70903 (wrong code with bfi @ aarch64 with -Os)

2016-08-04  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR rtl-optimization/70903
        * cse.c (cse_insn): If DEST is a paradoxical SUBREG, don't record DEST.

testsuite:
2016-08-04  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR rtl-optimization/70903
        * gcc.c-torture/execute/pr70903.c: New test.

From-SVN: r239122

Define std::enable_shared_from_this::weak_from_this

* testsuite/20_util/enable_shared_from_this/members/reinit.cc: Use
effective target not dg-options. Move check for feature-test macro to:
* testsuite/20_util/enable_shared_from_this/members/weak_from_this.cc:
New test.

From-SVN: r239121

Simplify std::__invoke_impl definitions

* include/std/functional (_Unwrap): Rename to __inv_unwrap.
(__invfwd): Adjust.
(__invoke_impl): Remove unused template parameters.
* testsuite/20_util/function_objects/invoke/59768.cc: Remove unused
parameter.
* testsuite/20_util/function_objects/invoke/ref_ext.cc: Copy 59768.cc
and test __invoke extension for C++11.

From-SVN: r239120

Use TESTING_IN_BUILD_TREE in params.exp

* gcc.dg/params/params.exp: Replace file exists with
TESTING_IN_BUILD_TREE.

From-SVN: r239119

tree-inline.c (remap_ssa_name): Check for POINTER_TYPE_P before accessing SSA_NAME_PTR_INFO.

gcc/ChangeLog:

2016-08-04  Kugan Vivekanandarajah  <kuganv@linaro.org>

* tree-inline.c (remap_ssa_name): Check for POINTER_TYPE_P before
accessing SSA_NAME_PTR_INFO.

From-SVN: r239118

re PR target/70677 (Suboptimal cond on AVR: unneeded stack frame)

PR 70677
* common/config/avr/avr-common.c (avr_option_optimization_table)
[OPT_LEVELS_ALL]: Turn off -fcaller-saves.

From-SVN: r239117

re PR target/55181 (Expensive shift loop where a bit-testing instruction could be used)

PR 55181
* config/avr/avr.md: New pattern to work around do_store_flag
generating shift instructions for bit extractions.

From-SVN: r239116

re PR c++/70229 (error: constexpr constructor does not have empty body)

PR c++/70229
* constexpr.c (check_constexpr_ctor_body_1): Allow typedef
declarations.

* g++.dg/cpp0x/constexpr-ctor19.C: New test.

From-SVN: r239115

re PR rtl-optimization/71984 (wrong code with -O -mavx512cd)

2016-08-04  Richard Biener  <rguenther@suse.de>

PR middle-end/71984
* gcc.dg/torture/pr71984.c: Guard correctness check for
little-endian.

From-SVN: r239114

tree-vrp.c (set_value_range): Use vrp_equiv_obstack with BITMAP_ALLOC.

gcc/ChangeLog:

2016-08-04  Kugan Vivekanandarajah  <kuganv@linaro.org>

* tree-vrp.c (set_value_range): Use vrp_equiv_obstack with
BITMAP_ALLOC.
(add_equivalence): Likewise.
(get_value_range): Allocate value range with vrp_value_range_pool.
(vrp_initialize): Initialize vrp_equiv_obstack for equiv allocation.
(vrp_finalize): Relase vrp_equiv_obstack and vrp_value_range_pool.

From-SVN: r239113

Daily bump.

From-SVN: r239112

escape: Enable escape analysis in gccgo.

    Off by default, enabled through -fgo-optimize-allocs.

    Reviewed-on: https://go-review.googlesource.com/22378

From-SVN: r239109

rs6000.c (rs6000_option_override_internal): Make LRA the default for the rs6000 port.

* config/rs6000/rs6000.c (rs6000_option_override_internal): Make LRA
the default for the rs6000 port.

From-SVN: r239105

gotest: multiple +build lines must all be true

    The code that handled +build lines did not correctly require them to all
    be true.  While looking into this I discovered that multiple +build
    lines were mishandled in a different way, because the shell does not
    preseve line breaks in backquoted data.  Look for the +build token to
    tell us when we are switching from one +build line to another.

    Reviewed-on: https://go-review.googlesource.com/25460

From-SVN: r239100

20160802-1.c: New testcase.

2016-08-03  Andrew Pinski  <apinski@cavium.com>

        * gcc.c-torture/compile/20160802-1.c: New testcase.

From-SVN: r239099

compiler: improve type caching for interface types

    Add a cached to Interface_info_expression::do_type() so as to reuse
    previously created interface types. This change reduces gccgo peak heap
    usage when compiling the "fmt" package from around 16mb to around 10mb.

    Fixes golang/go#16334

    Reviewed-on: https://go-review.googlesource.com/24890

From-SVN: r239095

Define feature-test macro for std::enable_shared_from_this

* include/bits/shared_ptr_base.h (__cpp_lib_enable_shared_from_this):
Define feature-test macro.
* testsuite/20_util/enable_shared_from_this/members/reinit.cc: Test
for the macro.

From-SVN: r239094

Define std::shared_ptr::weak_type

* include/bits/shared_ptr.h (shared_ptr::weak_type): Define.
* include/bits/shared_ptr_base.h (__shared_ptr::weak_type): Define.
* testsuite/20_util/shared_ptr/cons/43820_neg.cc: Adjust dg-error.
* testsuite/20_util/shared_ptr/requirements/weak_type.cc: New test.
* testsuite/20_util/shared_ptr/cons/void_neg.cc: Likewise.

From-SVN: r239093

re PR middle-end/71876 (longjmp is miscompiled with -ffreestanding)

2016-08-03  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR middle-end/71876
        * calls.c (special_function_p): Remove special handling of
        "setjmp_syscall", "qsetjmp", "longjmp", "siglongjmp" and the
        prefix "__x".  Recognize "savectx", "vfork" and "getcontext" only
        without prefix.  Remove potentially unsafe ECF_LEAF and ECF_NORETURN.

From-SVN: r239092

re PR rtl-optimization/72778 (internal compiler error: in create_pre_exit, at mode-switching.c:451)

2016-08-03  Vladimir Makarov  <vmakarov@redhat.com>

PR middle-end/72778
* lra-spills.c (regno_in_use_p): Check bb and regno modification.
Don't stop on regular insns.

From-SVN: r239091

Define std::as_const

* include/std/utility (as_const): Define.
* testsuite/20_util/as_const/1.cc: New test.
* testsuite/20_util/as_const/rvalue_neg.cc: New test.

From-SVN: r239090

Define std::owner_less<void> specialization (P0074R0)

* include/bits/shared_ptr.h (owner_less): Add default template
argument.
* include/bits/shared_ptr_base.h (_Sp_owner_less<void, void>): Define
specialization.
(owner_less<void>): Define specialization.
* include/bits/stl_function.h (__cpp_lib_transparent_operators):
Update value.
* testsuite/20_util/owner_less/void.cc: New test.
* testsuite/experimental/feat-cxx14.cc: Update macro value tested.

From-SVN: r239089

Define C++17 feature-test macros

* include/bits/allocator.h (__cpp_lib_incomplete_container_elements):
Define feature-test macro.
* include/bits/range_access.h (__cpp_lib_array_constexpr): Likewise.
* include/std/shared_mutex (__cpp_lib_shared_mutex): Uncomment.
* include/std/type_traits (__cpp_lib_logical_traits): Fix value.
(__cpp_lib_type_trait_variable_templates): Define.

From-SVN: r239088

nvptx.c (nvptx_declare_function_name): Round frame size to DImode boundary.

gcc/
* config/nvptx/nvptx.c (nvptx_declare_function_name): Round frame
size to DImode boundary.
(nvptx_propagate): Likewise.

libgomp/
* testsuite/libgomp.oacc-c-c++-common/crash-1.c: New.

From-SVN: r239086

Define __cpp_lib_generic_associative_lookup feature-test macro

* include/bits/stl_function.h: Remove commented-out macro.
* include/bits/stl_tree.h (__cpp_lib_generic_associative_lookup):
Define feature-test macro.
* testsuite/experimental/feat-cxx14.cc: Add tests for more macros.

From-SVN: r239084

escape: Stack allocate non-escaping expressions.

    Stack allocate expressions that the analysis tracked and determined
    did not escape.

    Reviewed-on: https://go-review.googlesource.com/22377

From-SVN: r239083

download_prerequisites: Explicitly remove existing symlinks before trying to create new ones.

2016-08-03  Eric Gallager  <egall@gwmail.gwu.edu>

* download_prerequisites: Explicitly remove existing symlinks
before trying to create new ones.

From-SVN: r239082

Enable Mathematical Special Functions for C++17

* include/bits/c++config (_GLIBCXX_USE_STD_SPEC_FUNCS): Define for
C++17, or for C++11/C++14 when __STDCPP_WANT_MATH_SPEC_FUNCS__ is
true.
* include/bits/specfun.h [!__STDCPP_WANT_MATH_SPEC_FUNCS__]: Don't
do #error for C++17.
* include/c_global/cmath: Check _GLIBCXX_USE_STD_SPEC_FUNCS instead
of __STDCPP_WANT_MATH_SPEC_FUNCS__.
* include/tr1/bessel_function.tcc: Likewise.
* include/tr1/beta_function.tcc: Likewise.
* include/tr1/cmath: Likewise.
* include/tr1/ell_integral.tcc: Likewise.
* include/tr1/exp_integral.tcc: Likewise.
* include/tr1/gamma.tcc: Likewise.
* include/tr1/hypergeometric.tcc: Likewise.
* include/tr1/legendre_function.tcc: Likewise.
* include/tr1/modified_bessel_func.tcc: Likewise.
* include/tr1/poly_hermite.tcc: Likewise.
* include/tr1/poly_laguerre.tcc: Likewise.
* include/tr1/riemann_zeta.tcc: Likewise.
* include/tr1/special_function_util.h: Likewise.
* testsuite/26_numerics/headers/cmath/functions_std_c++17.cc: New.

From-SVN: r239081

Remove deprecated has_trivial_xxx traits

* include/std/type_traits (has_trivial_default_constructor): Remove.
(has_trivial_copy_constructor, has_trivial_copy_assign): Likewise.
* testsuite/20_util/has_trivial_copy_assign/requirements/
explicit_instantiation.cc: Remove test.
* testsuite/20_util/declval/requirements/1_neg.cc: Adjust dg-error
line number.
* testsuite/20_util/has_trivial_copy_assign/requirements/typedefs.cc:
Likewise.
* testsuite/20_util/has_trivial_copy_assign/value.cc: Likewise.
* testsuite/20_util/has_trivial_copy_constructor/requirements/
explicit_instantiation.cc: Likewise.
* testsuite/20_util/has_trivial_copy_constructor/requirements/
typedefs.cc: Likewise.
* testsuite/20_util/has_trivial_copy_constructor/value.cc: Likewise.
* testsuite/20_util/has_trivial_default_constructor/requirements/
explicit_instantiation.cc: Likewise.
* testsuite/20_util/has_trivial_default_constructor/requirements/
typedefs.cc: Likewise.
* testsuite/20_util/has_trivial_default_constructor/value.cc:
Likewise.
* testsuite/20_util/headers/type_traits/types_std_c++0x_neg.cc:
Check has_trivial_default_constructor, has_trivial_copy_constructor,
and has_trivial_copy_assign are not defined.
* testsuite/20_util/pair/requirements/dr801.cc: Remove commented out
tests.
* testsuite/20_util/tuple/requirements/dr801.cc: Likewise.
* testsuite/20_util/make_signed/requirements/typedefs_neg.cc: Adjust
dg-error line number.
* testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc:
Likewise.

From-SVN: r239079

lang.opt: New option -fdec-intrinsic-ints.

2016-08-03  Fritz Reese  <fritzoreese@gmail.com>

gcc/fortran/
* lang.opt: New option -fdec-intrinsic-ints.
* options.c (set_dec_flags): Enable with -fdec.
* gfortran.texi, invoke.texi, intrinsics.texi: Update documentation.
* intrinsic.c (add_function, add_subroutine): New B/I/J/K intrinsic
variants.

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

From-SVN: r239078

pr71403-1.c: Use dg-additional-options and remove -O3.

2016-08-03  Richard Biener  <rguenther@suse.de>

* c-c++-common/ubsan/pr71403-1.c: Use dg-additional-options
and remove -O3.
* c-c++-common/ubsan/pr71403-2.c: Likewise.
* c-c++-common/ubsan/pr71403-3.c: Likewise.

From-SVN: r239077

loadpre2.c: Disable LIM.

2016-08-03  Richard Biener  <rguenther@suse.de>

* gcc.dg/tree-ssa/loadpre2.c: Disable LIM.
* gcc.dg/tree-ssa/loadpre21.c: Likewise.
* gcc.dg/tree-ssa/loadpre22.c: Likewise.
* gcc.dg/tree-ssa/ssa-pre-23.c: Likewise.

From-SVN: r239071

Add branch_changer.py script to maintainer-scripts

* branch_changer.py: New file.

From-SVN: r239066

Fix tests that break unnecessarily for avr.

Require int32plus for tests that assume so, and conditionally skip pr44024.c,
 as it only works if the target allows deletion of null pointer checks.

gcc/testsuite/ChangeLog

* gcc.dg/init-excess-2.c: Require int32plus.
* gcc.dg/pr44024.c: Skip if target keeps null pointer checks.
* gcc.dg/pr59963-2.c: Require int32plus.
* gcc.dg/pr71084.c: Cast pointer to intprt_t.
* gcc.dg/unroll-7.c: Require int32plus.

From-SVN: r239065

[RS6000] power8 unaligned fp load/store

According to the POWER8 Processor User’s Manual and some
experimentation on power8 hardware, unaligned fp load/store on power8
does not invoke the alignment interrupt.

* config/rs6000/rs6000.h (SLOW_UNALIGNED_ACCESS): Make scalar
float access depend on TARGET_EFFICIENT_UNALIGNED_VSX.
* config/rs6000/rs6000.opt (-mefficient-unaligned-vsx): Renamed
from -mefficient-unaligned-vector.  Note that this affects fp too.

From-SVN: r239013

[RS6000] cost SLOW_UNALIGNED_ACCESS

* config/rs6000/rs6000.c (rs6000_rtx_costs): Make unaligned mem
cost more.

From-SVN: r239012

[RS6000] Force source of fix_trunc<mode>si2 to reg

* config/rs6000/rs6000.md (fix_trunc<mode>si2): Force source operand
to a reg.  Localize vars.

From-SVN: r239011

[RS6000] Remove negative from option help strings

* config/rs6000/rs6000.opt: Remove negatives from help strings
and comments.

From-SVN: r239010

[RS6000] Delete duplicate code

This removes the duplicate (TARGET_POWERPC64 && size == 16) block.

* config/rs6000/rs6000.c (rs6000_secondary_reload_direct_move):
Delete duplicated code.

From-SVN: r239009

Daily bump.

From-SVN: r239008

escape: Add basic debugging.

    Emit basic debug information when compiling with the flag
    -fgo-debug-escape#.

    Reviewed-on: https://go-review.googlesource.com/22376

2016-08-02  Chris Manghane  <cmang@google.com>

* lang.opt: Add -fgo-debug-escape option.
* go-c.h (go_create_gogo): Add debug_escape_level parameter.
* go-lang.c (go_langhook_init): Pass go_debug_escape_level to
go_create_gogo.

From-SVN: r239002

re PR rtl-optimization/72778 (internal compiler error: in create_pre_exit, at mode-switching.c:451)

2016-08-02  Vladimir Makarov  <vmakarov@redhat.com>

PR middle-end/72778
* lra-spills.c (regno_in_use_p): New.
(lra_final_code_change): Use it.

From-SVN: r239000

Fix std::wstring allocator tests

* testsuite/21_strings/basic_string/allocator/wchar_t/copy.cc:
Remove reundant check for _GLIBCXX_USE_WCHAR_T and fix char type.
* testsuite/21_strings/basic_string/allocator/wchar_t/copy_assign.cc:
Likewise.
* testsuite/21_strings/basic_string/allocator/wchar_t/minimal.cc:
Likewise.
* testsuite/21_strings/basic_string/allocator/wchar_t/move.cc:
Likewise.
* testsuite/21_strings/basic_string/allocator/wchar_t/move_assign.cc:
Likewise.
* testsuite/21_strings/basic_string/allocator/wchar_t/noexcept.cc:
Likewise.
* testsuite/21_strings/basic_string/allocator/wchar_t/swap.cc:
Likewise.

From-SVN: r238996

Improve comments on check_v3_target_filesystem_ts

* testsuite/lib/libstdc++.exp (check_v3_target_filesystem_ts): Improve
comments.

From-SVN: r238995

Move dg-error directives to relevant lines

* testsuite/19_diagnostics/error_code/operators/bool_neg.cc: Move
dg-error to relevant line.
* testsuite/19_diagnostics/error_condition/operators/bool_neg.cc:
Likewise.
* testsuite/20_util/ratio/cons/cons_overflow_neg.cc: Likewise.

From-SVN: r238994

Add -fno-show-column to libstdc++ test flags

* scripts/testsuite_flags.in: Add -fno-show-column to cxxflags.

From-SVN: r238993

expr.c (push_value): Only call flush_quick_stack for non-constant arguments.

2016-08-02  Roger Sayle  <roger@nextmovesoftware.com>

* expr.c (push_value): Only call flush_quick_stack for non-constant
arguments.
(build_java_throw_out_of_bounds_exception): No longer wrap calls
to _Jv_ThowBadArrayIndex in a COMPOUND_EXPR as no longer needed.
(java_check_reference): Annotate COND_EXPR with __builtin_expect
to indicate that calling _Jv_ThrowNullPointerException is unlikely.
(build_java_arrayaccess): Construct an unlikely COND_EXPR instead
of a TRUTH_ANDIF_EXPR in a COMPOUND_EXPR.  Only generate array
index MULT_EXPR when size_exp is not unity.
(build_array_length_annotation): When optimizing, generate a write
to the allocated array's length field to expose constant lengths
to GCC's optimizers.
(build_newarray): Call new build_array_length_annotation.
(build_anewarray): Likewise.

(expand_java_multianewarray): Fix whitespace.
(expand_java_return): Likewise.
(expand_invoke): Likewise.
(load_type_state): Likewise.

From-SVN: r238992

re PR rtl-optimization/69847 (Spec 2006 403.gcc slows down with -mlra vs. reload on PowerPC)

2016-08-02  Vladimir Makarov  <vmakarov@redhat.com>

PR rtl-optimization/69847
* lra-int.h (struct lra-reg): Use restore_rtx instead of
restore_regno.
(lra_rtx_hash): New.
* lra.c (initialize_lra_reg_info_element): Use restore_rtx instead
of restore_regno.
(lra_rtx_hash): Rename and move lra-remat.c::rtx_hash.
* lra-remat.c (rtx_hash): Rename and Move to lra.c.
* lra-spills.c (lra_final_code_change): Don't delete insn when the
next insn is USE with the same reg as the current insn source.
* lra-constraints.c (curr_insn_transform): Use restore_rtx instead
of restore_regno.
(lra_constraints_init): Call initiate_invariants.
(lra_constraints_finish): Call finish_invariants.
(struct invariant, invariant_t, invariant_ptr_t): New.
(const_invariant_ptr_t, invariants, invariants_pool): New.
(invariant_table, invariant_hash, invariant_eq_p): New.
(insert_invariant, initiate_invariants, finish_invariants): New.
(clear_invariants, invalid_invariant_regs): New.
(inherit_reload_reg, split_reg, fix_bb_live_info): Use restore_rtx
instead of restore_regno.
(invariant_p, process_invariant_for_inheritance): New.
(inherit_in_ebb): Implement invariant inheritance.
(lra_inheritance): Initialize and finalize invalid_invariant_regs.
(remove_inheritance_pseudos): Implement undoing invariant
inheritance.
(undo_optional_reloads, lra_undo_inheritance): Use restore_rtx
instead of restore_regno.
* lra-assigns.c (regno_live_length): New.
(reload_pseudo_compare_func): Use regno_live_length.
(assign_by_spills): Use restore_rtx instead of restore_regno.
(lra_assign): Ditto.  Initiate regno_live_length.

From-SVN: r238991

* fixinc.in: Use --parents option to make LIB directory.

From-SVN: r238990

[Patch AArch64 Obvious] Fix Bootstrap for my mistake in r238977

I deleted an 'f' halfway through a line when applying r238977. Not sure
how I managed it, but entirely my fault.

gcc/

* config/aarch64/arm_neon.h (vminnm_f64): Add back missing 'f' from
__builtin_aarch64_fmindf.

From-SVN: r238989

Skip C tests if test flags include C++ options

* testsuite/18_support/bad_exception/23591_thread-1.c: Skip test if
options are present that aren't valid for C.
* testsuite/abi/header_cxxabi.c: Likewise.

From-SVN: r238988

Test TR1 special functions without adding them to std

* testsuite/tr1/5_numerical_facilities/special_functions/16_hermite/
check_value.cc: Do not add special functions to namespace std in TR1
test.

From-SVN: r238987

Only run math special function tests for C++11 and later

* testsuite/ext/special_functions/conf_hyperg/check_nan.cc: Only
run for C++11 and later.
* testsuite/ext/special_functions/conf_hyperg/check_value.cc:
Likewise.
* testsuite/ext/special_functions/conf_hyperg/compile.cc: Likewise.
* testsuite/ext/special_functions/hyperg/check_nan.cc: Likewise.
* testsuite/ext/special_functions/hyperg/check_value.cc: Likewise.
* testsuite/ext/special_functions/hyperg/compile.cc: Likewise.
* testsuite/special_functions/01_assoc_laguerre/check_nan.cc:
Likewise.
* testsuite/special_functions/01_assoc_laguerre/check_value.cc:
Likewise.
* testsuite/special_functions/01_assoc_laguerre/compile.cc: Likewise.
* testsuite/special_functions/01_assoc_laguerre/compile_2.cc:
Likewise.
* testsuite/special_functions/02_assoc_legendre/check_nan.cc:
Likewise.
* testsuite/special_functions/02_assoc_legendre/check_value.cc:
Likewise.
* testsuite/special_functions/02_assoc_legendre/compile.cc: Likewise.
* testsuite/special_functions/02_assoc_legendre/compile_2.cc:
* testsuite/special_functions/03_beta/check_nan.cc: Likewise.
* testsuite/special_functions/03_beta/check_value.cc: Likewise.
* testsuite/special_functions/03_beta/compile.cc: Likewise.
* testsuite/special_functions/03_beta/compile_2.cc: Likewise.
* testsuite/special_functions/04_comp_ellint_1/check_nan.cc: Likewise.
* testsuite/special_functions/04_comp_ellint_1/check_value.cc:
Likewise.
* testsuite/special_functions/04_comp_ellint_1/compile.cc: Likewise.
* testsuite/special_functions/04_comp_ellint_1/compile_2.cc: Likewise.
* testsuite/special_functions/05_comp_ellint_2/check_nan.cc: Likewise.
* testsuite/special_functions/05_comp_ellint_2/check_value.cc:
Likewise.
* testsuite/special_functions/05_comp_ellint_2/compile.cc: Likewise.
* testsuite/special_functions/05_comp_ellint_2/compile_2.cc: Likewise.
* testsuite/special_functions/06_comp_ellint_3/check_nan.cc: Likewise.
* testsuite/special_functions/06_comp_ellint_3/check_value.cc:
Likewise.
* testsuite/special_functions/06_comp_ellint_3/compile.cc: Likewise.
* testsuite/special_functions/06_comp_ellint_3/compile_2.cc: Likewise.
* testsuite/special_functions/07_cyl_bessel_i/check_nan.cc: Likewise.
* testsuite/special_functions/07_cyl_bessel_i/check_value.cc:
Likewise.
* testsuite/special_functions/07_cyl_bessel_i/compile.cc: Likewise.
* testsuite/special_functions/07_cyl_bessel_i/compile_2.cc: Likewise.
* testsuite/special_functions/07_cyl_bessel_i/pr56216.cc: Likewise.
* testsuite/special_functions/08_cyl_bessel_j/check_nan.cc: Likewise.
* testsuite/special_functions/08_cyl_bessel_j/check_value.cc:
Likewise.
* testsuite/special_functions/08_cyl_bessel_j/compile.cc: Likewise.
* testsuite/special_functions/08_cyl_bessel_j/compile_2.cc: Likewise.
* testsuite/special_functions/09_cyl_bessel_k/check_nan.cc: Likewise.
* testsuite/special_functions/09_cyl_bessel_k/check_value.cc:
Likewise.
* testsuite/special_functions/09_cyl_bessel_k/compile.cc: Likewise.
* testsuite/special_functions/09_cyl_bessel_k/compile_2.cc: Likewise.
* testsuite/special_functions/10_cyl_neumann/check_nan.cc: Likewise.
* testsuite/special_functions/10_cyl_neumann/check_value.cc: Likewise.
* testsuite/special_functions/10_cyl_neumann/compile.cc: Likewise.
* testsuite/special_functions/10_cyl_neumann/compile_2.cc: Likewise.
* testsuite/special_functions/11_ellint_1/check_nan.cc: Likewise.
* testsuite/special_functions/11_ellint_1/check_value.cc: Likewise.
* testsuite/special_functions/11_ellint_1/compile.cc: Likewise.
* testsuite/special_functions/11_ellint_1/compile_2.cc: Likewise.
* testsuite/special_functions/12_ellint_2/check_nan.cc: Likewise.
* testsuite/special_functions/12_ellint_2/check_value.cc: Likewise.
* testsuite/special_functions/12_ellint_2/compile.cc: Likewise.
* testsuite/special_functions/12_ellint_2/compile_2.cc: Likewise.
* testsuite/special_functions/13_ellint_3/check_nan.cc: Likewise.
* testsuite/special_functions/13_ellint_3/check_value.cc: Likewise.
* testsuite/special_functions/13_ellint_3/compile.cc: Likewise.
* testsuite/special_functions/13_ellint_3/compile_2.cc: Likewise.
* testsuite/special_functions/14_expint/check_nan.cc: Likewise.
* testsuite/special_functions/14_expint/check_value.cc: Likewise.
* testsuite/special_functions/14_expint/compile.cc: Likewise.
* testsuite/special_functions/14_expint/compile_2.cc: Likewise.
* testsuite/special_functions/15_hermite/check_nan.cc: Likewise.
* testsuite/special_functions/15_hermite/check_value.cc: Likewise.
* testsuite/special_functions/15_hermite/compile.cc: Likewise.
* testsuite/special_functions/15_hermite/compile_2.cc: Likewise.
* testsuite/special_functions/16_laguerre/check_nan.cc: Likewise.
* testsuite/special_functions/16_laguerre/check_value.cc: Likewise.
* testsuite/special_functions/16_laguerre/compile.cc: Likewise.
* testsuite/special_functions/16_laguerre/compile_2.cc: Likewise.
* testsuite/special_functions/17_legendre/check_nan.cc: Likewise.
* testsuite/special_functions/17_legendre/check_value.cc: Likewise.
* testsuite/special_functions/17_legendre/compile.cc: Likewise.
* testsuite/special_functions/17_legendre/compile_2.cc: Likewise.
* testsuite/special_functions/18_riemann_zeta/check_nan.cc: Likewise.
* testsuite/special_functions/18_riemann_zeta/check_value.cc:
Likewise.
* testsuite/special_functions/18_riemann_zeta/compile.cc: Likewise.
* testsuite/special_functions/18_riemann_zeta/compile_2.cc: Likewise.
* testsuite/special_functions/19_sph_bessel/check_nan.cc: Likewise.
* testsuite/special_functions/19_sph_bessel/check_value.cc: Likewise.
* testsuite/special_functions/19_sph_bessel/compile.cc: Likewise.
* testsuite/special_functions/19_sph_bessel/compile_2.cc: Likewise.
* testsuite/special_functions/20_sph_legendre/check_nan.cc: Likewise.
* testsuite/special_functions/20_sph_legendre/check_value.cc:
Likewise.
* testsuite/special_functions/20_sph_legendre/compile.cc: Likewise.
* testsuite/special_functions/20_sph_legendre/compile_2.cc: Likewise.
* testsuite/special_functions/21_sph_neumann/check_nan.cc: Likewise.
* testsuite/special_functions/21_sph_neumann/check_value.cc: Likewise.
* testsuite/special_functions/21_sph_neumann/compile.cc: Likewise.
* testsuite/special_functions/21_sph_neumann/compile_2.cc: Likewise.

From-SVN: r238986

Make TR1 special function tests support C++98

* testsuite/tr1/5_numerical_facilities/special_functions/
08_cyl_bessel_i/check_value.cc: Use __attribute__((unused)) instead
of [[gnu::unused]].
* testsuite/tr1/5_numerical_facilities/special_functions/
09_cyl_bessel_j/check_value.cc: Likewise.
* testsuite/tr1/5_numerical_facilities/special_functions/
10_cyl_bessel_k/check_value.cc: Likewise.
* testsuite/tr1/5_numerical_facilities/special_functions/
11_cyl_neumann/check_value.cc: Likewise.
* testsuite/tr1/5_numerical_facilities/special_functions/
21_sph_bessel/check_value.cc: Likewise.
* testsuite/tr1/5_numerical_facilities/special_functions/
23_sph_neumann/check_value.cc: Likewise.

From-SVN: r238985

Update Solaris baselines

* config/abi/post/solaris2.10/baseline_symbols.txt: Regenerate.
* config/abi/post/solaris2.10/amd64/baseline_symbols.txt: Likewise.
* config/abi/post/solaris2.10/sparcv9/baseline_symbols.txt: Likewise.
* config/abi/post/solaris2.11/baseline_symbols.txt: Likewise.
* config/abi/post/solaris2.11/amd64/baseline_symbols.txt: Likewise.
* config/abi/post/solaris2.11/sparcv9/baseline_symbols.txt: Likewise.

From-SVN: r238984

re PR tree-optimization/34114 (Missed optimization: cannot determine loop termination)

PR tree-optimization/34114
* tree-ssa-loop-niter.c (number_of_iterations_ne): Prove no-overflow
information for more control IVs.

gcc/testsuite
PR tree-optimization/34114
* gcc.dg/tree-ssa/loop-42.c: New test.

From-SVN: r238983

re PR tree-optimization/34114 (Missed optimization: cannot determine loop termination)

PR tree-optimization/34114
* fold-const.c (multiple_of_p): Improve MULT_EXPR, PLUS_EXPR,
PLUS_EXPR case.  Handle SSA_NAME case.

From-SVN: r238982

Skip scan-assembler test when -flto is used

* testsuite/29_atomics/atomic_flag/test_and_set/explicit-hle.cc: Skip
test if -flto used.

From-SVN: r238981

Support using -flto with libstdc++ testsuite

* testsuite/lib/libstdc++.exp (v3-build_support): Add -fno-lto to
additional flags for compiling libtestc++.a objects.

From-SVN: r238978

[PATCH AArch64] Add more AArch64 NEON intrinsics

Add vmaxnm_f64, vminnm_f64, vmax_f64, vmin_f64.

Committed on behalf of Tamar Christina <tamar.christina@arm.com> .

gcc/

* config/aarch64/aarch64-simd-builtins.def
(__builtin_aarch64_fmindf): Change BUILTIN_VDQF to BUILTIN_VDQF_DF.
(__builtin_aarch64_fmaxdf): Likewise.
(__builtin_aarch64_smin_nandf): Likewise.
(__builtin_aarch64_smax_nandf): Likewise.
* config/aarch64/aarch64-simd.md (<fmaxmin><mode>3): Remove.
* config/aarch64/aarch64.md (<fmaxmin><mode>3): Rename to...
(<fmaxmin><mode>3): ...this.
* config/aarch64/arm_neon.h (vmaxnm_f64): New.
(vminnm_f64): Likewise.
(vmin_f64): Likewise.
(vmax_f64): Likewise.
* config/aarch64/iterators.md (FMAXMIN): Merge with...
(FMAXMIN_UNS): ...this.
(fmaxmin): Merged with
(fmaxmin_op): ...this...
(maxmin_uns_op): ...in to this.

gcc/testsuite/

* gcc.target/aarch64/vminmaxnm.c: New.
* gcc.target/aarch64/simd/vminmaxnm_1.c (main): Added float64x1_t
tests.

From-SVN: r238977

Daily bump.

From-SVN: r238976

rs6000-c.c (altivec_resolve_overloaded_builtin): Add support for vec_extract on vector float...

[gcc]
2016-08-01  Michael Meissner  <meissner@linux.vnet.ibm.com>

* config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin):
Add support for vec_extract on vector float, vector int, vector
short, and vector char vector types.
* config/rs6000/rs6000.c (rs6000_expand_vector_extract): Add
vector float, vector int, vector short, and vector char
optimizations on 64-bit ISA 2.07 systems for both constant and
variable element numbers.
(rs6000_split_vec_extract_var): Likewise.
* config/rs6000/vsx.md (vsx_xscvspdp_scalar2): Allow SFmode to be
Altivec registers on ISA 2.07 and above.
(vsx_extract_v4sf): Delete alternative that hard coded element 0,
which never was matched due to the split occuring before register
allocation (and the code would not have worked on little endian
systems if it did match).  Allow extracts to go to the Altivec
registers if ISA 2.07 (power8).  Change from using "" around the
C++ code to using {}'s.
(vsx_extract_v4sf_<mode>_load): New insn to optimize vector float
vec_extracts when the vector is in memory.
(vsx_extract_v4sf_var): New insn to optimize vector float
vec_extracts when the element number is variable on 64-bit ISA
2.07 systems.
(vsx_extract_<mode>, VSX_EXTRACT_I iterator): Add optimizations
for 64-bit ISA 2.07 as well as ISA 3.0.
(vsx_extract_<mode>_p9, VSX_EXTRACT_I iterator): Likewise.
(vsx_extract_<mode>_p8, VSX_EXTRACT_I iterator): Likewise.
(vsx_extract_<mode>_load, VSX_EXTRACT_I iterator): New insn to
optimize vector int, vector short, and vector char vec_extracts
when the vector is in memory.
(vsx_extract_<mode>_var, VSX_EXTRACT_I iterator): New insn to
optimize vector int, vector short, and vector char vec_extracts
when the element number is variable.

[gcc/testsuite]
2016-08-01  Michael Meissner  <meissner@linux.vnet.ibm.com>

* gcc.target/powerpc/vec-extract-5.c: New tests to test
vec_extract for vector float, vector int, vector short, and vector
char.
* gcc.target/powerpc/vec-extract-6.c: Likewise.
* gcc.target/powerpc/vec-extract-7.c: Likewise.
* gcc.target/powerpc/vec-extract-8.c: Likewise.
* gcc.target/powerpc/vec-extract-9.c: Likewise.

From-SVN: r238971

Warn about mangled name change even if DECL_REALLY_EXTERN.

* mangle.c (mangle_decl): Warn about mangled name change even if
DECL_REALLY_EXTERN.

From-SVN: r238966

mangle.c (get_abi_tags): New.

* mangle.c (get_abi_tags): New.

(find_substitution, write_unqualified_name, write_abi_tags)
(maybe_check_abi_tags): Use it.

From-SVN: r238965

* mangle.c (mangle_decl): Fix mangled name change warning.

From-SVN: r238964

Add non-const std::basic_string::data() for C++17

* include/bits/basic_string.h (data() const): Update comment.
(data()): Add non-const overload for C++17.
* testsuite/21_strings/basic_string/operations/data/char/2.cc: New.
* testsuite/21_strings/basic_string/operations/data/wchar_t/2.cc: New.

From-SVN: r238963

re PR target/71948 ([avr] Make progmem work on reduced Tiny cores by adding 0x4000 to symbols)

PR target/71948
* config/avr/avr.c (AVR_SYMBOL_FLAG_TINY_PM): Use a value that
does not overlap with other symbol flags.

From-SVN: r238961