Add missing noexcept on definition to match declaration

* include/bits/regex.tcc (regex_iterator::operator==): Add missing
noexcept.

From-SVN: r262146

S/390: Fix mtune default.

When building with --with-tune=zEC12 and calling the resulting gcc
with --march=z13 (no extra -mtune), the binary would unexpectedly be compiled
with -march=z13 -mtune=zEC12.  This patch avoids using the default tune
parameter if -march is specified as argument but the user can still
explicitly state -march=z13 -mtune=zEC12.

gcc/ChangeLog:

2018-06-26  Robin Dapp  <rdapp@linux.vnet.ibm.com>

* config/s390/s390.h (enum processor_flags): Do not use
default tune parameter when -march was specified.

From-SVN: r262143

re PR target/86314 (GCC 7.x and 8.x zero out "eax" before using "rax" in "lock bts")

PR target/86314
* config/i386/i386.md (setcc + movzbl to xor + setcc peephole2s):
Check reg_overlap_mentioned_p in addition to reg_set_p with the same
operands.

* gcc.dg/pr86314.c: New test.

From-SVN: r262141

re PR c++/86291 (OpenMP incorrect for-loop collapsing with iterators and at least 5 nested loops)

PR c++/86291
* parser.c (cp_parser_omp_for_loop_init): Change for_block argument
type from vec<tree, va_gc> * to vec<tree, va_gc> *&.

* testsuite/libgomp.c++/pr86291.C: New test.

From-SVN: r262137

re PR debug/86257 (Program compiled with fPIC crashes while stepping over thread-local variable GDB)

PR debug/86257
* gcc.target/i386/pr86257.c: Add -mtls-dialect=gnu to dg-options.

From-SVN: r262136

Require 64-bit in gcc.target/i386/pr86257.c

* gcc.target/i386/pr86257.c: Require 64-bit.

From-SVN: r262135

Require IBM1047 support in g++.dg/pr86082.C

* g++.dg/pr86082.C: Require IBM1047 support.

From-SVN: r262134

Add myself to MAINTAINERS file

From-SVN: r262133

re PR tree-optimization/86287 (AddressSanitizer: heap-use-after-free on bootstrap with -O3)

2018-06-26  Richard Biener  <rguenther@suse.de>

PR tree-optimization/86287
PR bootstrap/86316
* tree-vect-loop.c (vect_transform_loop_stmt): Fix read-after-free.
(vect_analyze_loop): Initialize n_stmts.

From-SVN: r262132

re PR ipa/86271 (ICE due to size mismatch when inlining)

2018-06-26  Richard Biener  <rguenther@suse.de>

PR middle-end/86271
* fold-const.c (fold_convertible_p): Pointer extension
isn't valid.

* gcc.dg/pr86271.c: New testcase.

From-SVN: r262131

[PR86064] split single cross-partition range with nonzero locviews

We didn't split cross-partition ranges in loclists to output a
whole-function location expression, but with nonzero locviews, we
force loclists, and then we have to split to avoid cross-partition
list entries.

for  gcc/ChangeLog

PR debug/86064
* dwarf2out.c (loc_list_has_views): Adjust comments.
(dw_loc_list): Split single cross-partition range with
nonzero locview.

for  gcc/testsuite/ChangeLog

PR debug/86064
* gcc.dg/pr86064.c: New.

From-SVN: r262130

* lib/target-supports.exp
(check_effective_target_logical_op_short_circuit): Add v850.

From-SVN: r262129

Daily bump.

From-SVN: r262127

predicates.md (const_float_1_operand): Fix match_code test.

* config/v850/predicates.md (const_float_1_operand): Fix match_code
test.
(const_float_0_operand): Remove unused predicate.
* config/v850/v850.md (define_constants): Remove UNSPEC_LOOP.
(define_c_enum unspec): Add LOOP, RCP and RSQRT constants.
(recipsf2): New expander.  Original pattern now called
(recipsf2_insn).
(recipdf2, recipdf2_insn): Similarly.
(rsqrtsf2, rsqrtsf2_insn): Similarly
(rsqrtdf2, rsqrtdf2_insn): Similarly

From-SVN: r262123

stddef.h: Remove an obsolete comment on FreeBSD 5.

* ginclude/stddef.h: Remove an obsolete comment on FreeBSD 5.
Simplify logic for FreeBSD (twice).

From-SVN: r262121

compiler: improve escape analysis

    This CL ports recent enhancements of the escape analysis in the
    gc compiler to gofrontend.

    - CL 99335: unnamed receiver should not escape.

    - CL 105257: propagate loop depth to field. This prevents it
      from escaping when a field's address is taken inside a loop
      (but not otherwise escape).

    - CL 107597: use element type for "indirection" of slice/string.
      This prevents the slice/string from escaping when only the
      element, in case that it is pointerless, flows to outer scope.

    Reviewed-on: https://go-review.googlesource.com/120760

From-SVN: r262120

PR libstdc++/86112 fix printers for Python 2.6

Dict comprehensions are only supported since Python 2.7, so use an
alternative syntax that is backwards compatible.

PR libstdc++/86112
* python/libstdcxx/v6/printers.py (add_one_template_type_printer):
Replace dict comprehension.

From-SVN: r262115

PR tree-optimization/86204 -  wrong strlen result after prior strnlen

gcc/ChangeLog:

PR tree-optimization/86204
* tree-ssa-strlen.c (handle_builtin_strlen): Avoid storing
a strnlen result if it's less than the length of the string.

gcc/testsuite/ChangeLog:

PR tree-optimization/86204
* gcc.dg/strlenopt-46.c: New test.

From-SVN: r262114

Update powerpc64-linux-gnu/baseline_symbols.txt

PR libstdc++/81092
* config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update.

From-SVN: r262112

PR tree-optimization/85700 - Spurious -Wstringop-truncation warning with strncat

gcc/ChangeLog:

PR tree-optimization/85700
* gimple-fold.c (gimple_fold_builtin_strncat): Adjust comment.
* tree-ssa-strlen.c (is_strlen_related_p): Handle integer subtraction.
(maybe_diag_stxncpy_trunc): Distinguish strncat from strncpy.

gcc/testsuite/ChangeLog:

PR tree-optimization/85700
* gcc.dg/Wstringop-truncation-4.c: New test.

From-SVN: r262110

extend.texi (Zero-length arrays): Update and clarify.

gcc/ChangeLog:

* doc/extend.texi (Zero-length arrays): Update and clarify.

From-SVN: r262109

config.gcc (powerpc64le*): Revert January 16th...

2018-06-25  Michael Meissner  <meissner@linux.ibm.com>

* config.gcc (powerpc64le*): Revert January 16th, 2018 patch that
added IEEE/IBM long double multilib support on PowerPC little
endian Linux systems.
* config/rs6000/linux64.h (MULTILIB_DEFAULTS_IEEE): Likewise.
(MULTILIB_DEFAULTS): Likewise.
* config/rs6000/rs6000.c (rs6000_option_override_internal):
Likewise.
* config/rs6000/rs6000.h (TARGET_IEEEQUAD_MULTILIB): Likewise.
* config/rs6000/t-ldouble-linux64le-ibm: Delete, no longer used.
* config/rs6000/t-ldouble-linux64le-ieee: Delete, no longer used.

From-SVN: r262105

Fix -finit-derived for c_ptr and c_funptr in programs which use
    iso_c_binding.

    gcc/fortran/ChangeLog:

    2018-06-25  Fritz Reese  <fritzoreese@gmail.com>

PR fortran/82972
        PR fortran/83088
        PR fortran/85851
* expr.c (component_initializer): Assign init expr to c->initializer.
(generate_isocbinding_initializer): New.
(gfc_generate_initializer): Call generate_isocbinding_initializer to
generate initializers for c_ptr and c_funptr with -finit-derived.

    gcc/testsuite/ChangeLog:

    2018-06-25  Fritz Reese  <fritzoreese@gmail.com>

PR fortran/82972
        PR fortran/83088
        PR fortran/85851
* gfortran.dg/init_flag_17.f90: New testcase.

From-SVN: r262104

gcc_qsort: avoid overlapping memcpy (PR 86311)

PR middle-end/86311
* sort.cc (REORDER_23): Avoid memcpy with same destination and source.
(REORDER_45): Likewise.

From-SVN: r262092

PR libstdc++/86292 fix exception safety of std::vector<InputIterator> constructor

PR libstdc++/86292
* include/bits/stl_vector.h (vector::_M_range_initialize<InputIter>):
Add try-catch block.
* testsuite/23_containers/vector/cons/86292.cc: New.

From-SVN: r262029

* doc/xml/manual/status_cxx2017.xml: Document N4531 status.

From-SVN: r262025

Add experimental::sample and experimental::shuffle from N4531

The additions to <experimental/random> were added in 2015 but the new
algorithms in <experimental/algorithm> were not. This adds them.

* include/experimental/algorithm (sample, shuffle): Add new overloads
using per-thread random number engine.
* testsuite/experimental/algorithm/sample.cc: Simpify and reduce
dependencies by using __gnu_test::test_container.
* testsuite/experimental/algorithm/sample-2.cc: New.
* testsuite/experimental/algorithm/shuffle.cc: New.

From-SVN: r262024

p9-extract-1.c: Make second argument of vec_extract a signed int.

gcc/testsuite/ChangeLog:

2018-06-25  Carl Love  <cel@us.ibm.com>

* gcc.target/powerpc/p9-extract-1.c: Make second argument of
  vec_extract a signed int. Add vec_extract tests for bool char
and bool int.
* gcc.target/powerpc/p9-extract-4.c:  New test file for long long
vec_extract tests.

From-SVN: r262023

v850.md (divmodhi4): Make sure to sign extend the dividend to 32 bits.

* config/v850/v850.md (divmodhi4): Make sure to sign extend the
dividend to 32 bits.  Adjust length.
(udivmodhi4): Cleanup output template.  Fix length.

From-SVN: r262022

[testsuite/guality] Fix tcl error on gdb -v failure

2018-06-25  Tom de Vries  <tdevries@suse.de>

* lib/gcc-gdb-test.exp (report_gdb): Handle gdb -v failure.

From-SVN: r262021

vsx.md: Change word selector to prefered location.

gcc/ChangeLog:

2018-06-25  Carl Love  <cel@us.ibm.com>

* config/rs6000/vsx.md: Change word selector to prefered location.

Signed-off-by: Carl Love <cel@us.ibm.com>
---
 gcc/config/rs6000/vsx.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gcc/config/rs6000/vsx.md b/gcc/config/rs6000/vsx.md
index a528ef2e8..6e7a4277f 100644
--- a/gcc/config/rs6000/vsx.md
+++ b/gcc/config/rs6000/vsx.md
@@ -3934,7 +3934,7 @@

   operands[5] = gen_rtx_REG (V4SFmode, tmp_regno);
   operands[6] = gen_rtx_REG (V4SImode, tmp_regno);
-  operands[7] = GEN_INT (BYTES_BIG_ENDIAN ? 1 : 2);
+  operands[7] = GEN_INT (BYTES_BIG_ENDIAN ? 0 : 3);
   operands[8] = gen_rtx_REG (V4SImode, reg_or_subregno (operands[0]));
 }
   [(set_attr "type" "vecperm")
--
2.17.1

From-SVN: r262020

re PR regression/86304 ([MIPS] FAIL: gcc.dg/vect/pr79887.c  -mmsa (internal compiler error) starting with r261740)

2018-06-25  Richard Biener  <rguenther@suse.de>

PR tree-optimization/86304
* tree-vectorizer.c (vectorize_loops): Walk over new possibly
epilogue-if-converted loops as well.

From-SVN: r262017

re PR target/84786 ([miscompilation] vunpcklpd accessing xmm16-22 targeting KNL)

PR target/84786
* config/i386/sse.md (vshift_count): New mode attr.
(<shift_insn><mode>3<mask_name>): Use <vshift_count>N instead of vN
as last operand's constraint for VI2_AVX2_AVX512BW shifts.  Use YvN
instead of vN as last operand's constraint for VI48_AVX2 shifts.

* gcc.target/i386/avx512f-pr84786-3.c: New test.

From-SVN: r262015

lto-section-out.c (lto_begin_section): Do not print section name for noaddr and unnumbered dumps.

* lto-section-out.c (lto_begin_section): Do not print section
name for noaddr and unnumbered dumps.

From-SVN: r262013

tree-vectorizer.h (struct vec_info_shared): New structure with parts split out from struct vec_info and loop_nest from...

2018-06-25  Richard Biener  <rguenther@suse.de>

* tree-vectorizer.h (struct vec_info_shared): New structure
with parts split out from struct vec_info and loop_nest from
struct _loop_vec_info.
(struct vec_info): Adjust accordingly.
(struct _loop_vec_info): Likewise.
(LOOP_VINFO_LOOP_NEST): Adjust.
(LOOP_VINFO_DATAREFS): Likewise.
(LOOP_VINFO_DDRS): Likewise.
(struct _bb_vec_info): Likewise.
(BB_VINFO_DATAREFS): Likewise.
(BB_VINFO_DDRS): Likewise.
(struct _stmt_vec_info): Add dr_aux member.
(DR_VECT_AUX): Adjust to refer to member of DR_STMTs vinfo.
(DR_MISALIGNMENT_UNINITIALIZED): New.
(set_dr_misalignment): Adjust.
(dr_misalignment): Assert misalign isn't DR_MISALIGNMENT_UNINITIALIZED.
(vect_analyze_loop): Adjust prototype.
(vect_analyze_loop_form): Likewise.
* tree-vect-data-refs.c (vect_analyze_data_ref_dependences):
Compute dependences lazily.
(vect_record_base_alignments): Use shared datarefs/ddrs.
(vect_verify_datarefs_alignment): Likewise.
(vect_analyze_data_refs_alignment): Likewise.
(vect_analyze_data_ref_accesses): Likewise.
(vect_analyze_data_refs): Likewise.
* tree-vect-loop.c (_loop_vec_info::_loop_vec_info): Add
constructor parameter for shared part.
(vect_analyze_loop_form): Pass in shared part and adjust.
(vect_analyze_loop_2): Pass in storage for the number of
stmts.  Move loop nest finding to the caller.  Compute
datarefs lazily.
(vect_analyze_loop): Pass in shared part.
(vect_transform_loop): Verify shared datarefs are unchanged.
* tree-vect-slp.c (_bb_vec_info::_bb_vec_info): Add
constructor parameter for shared part.
(vect_slp_analyze_bb_1): Pass in shared part and adjust.
(vect_slp_bb): Verify shared datarefs are unchanged before
transform.
* tree-vect-stmts.c (ensure_base_align): Adjust for DR_AUX
change.
(new_stmt_vec_info): Initialize DR_AUX misalignment to
DR_MISALIGNMENT_UNINITIALIZED.
* tree-vectorizer.c (vec_info::vec_info): Add constructor
parameter for shared part.
(vec_info::~vec_info): Adjust.
(vec_info_shared::vec_info_shared): New.
(vec_info_shared::~vec_info_shared): Likewise.
(vec_info_shared::save_datarefs): Likewise.
(vec_info_shared::check_datarefs): Likewise.
(try_vectorize_loop_1): Construct shared part live for analyses
of a single loop for multiple vector sizes.
* tree-parloops.c (gather_scalar_reductions): Adjust.

From-SVN: r262009

tree-vect-data-refs.c (vect_find_stmt_data_reference): Modify DR for SIMD lane accesses here and mark DR with (void *)-1 aux.

2018-06-25  Richard Biener  <rguenther@suse.de>

* tree-vect-data-refs.c (vect_find_stmt_data_reference): Modify
DR for SIMD lane accesses here and mark DR with (void *)-1 aux.
(vect_analyze_data_refs): Remove similar code from here and
simplify accordingly.

From-SVN: r262008

tree-vect-data-refs.c (vect_check_gather_scatter): Fail for reverse storage order accesses rather than asserting they cannot...

2018-06-25  Richard Biener  <rguenther@suse.de>
        Eric Botcazou  <ebotcazou@libertysurf.fr>

* tree-vect-data-refs.c (vect_check_gather_scatter): Fail
for reverse storage order accesses rather than asserting
they cannot happen here.

* gnat.dg/sso9.adb: New testcase.
* gnat.dg/sso9_pkg.ads: Likewise.

From-SVN: r262007

[i386/debug] Fix insn prefix in tls_global_dynamic_64_<mode>

2018-06-25  Tom de Vries  <tdevries@suse.de>

PR debug/86257
* config/i386/i386.md (define_insn "*tls_global_dynamic_64_<mode>"):
Use data16 instead of .byte for insn prefix.

* gcc.target/i386/pr86257.c: New test.

From-SVN: r262006

C++: Fix PR86082

When turning a user-defined numerical literal into an operator
invocation the literal needs to be translated to the execution
character set.

gcc/cp/ChangeLog:

2018-06-25  Andreas Krebbel  <krebbel@linux.ibm.com>

PR C++/86082
* parser.c (make_char_string_pack): Pass this literal chars
through cpp_interpret_string.
(cp_parser_userdef_numeric_literal): Check the result of
make_char_string_pack.

gcc/testsuite/ChangeLog:

2018-06-25  Andreas Krebbel  <krebbel@linux.ibm.com>

PR C++/86082
* g++.dg/pr86082.C: New test.

From-SVN: r262003

Daily bump.

From-SVN: r262002

stddef.h: Simplify conditions around avoiding re-definition of __size_t.

* ginclude/stddef.h: Simplify conditions around avoiding
re-definition of __size_t.

From-SVN: r261998

libgomp.texi (Top): Move www.openmp.org to https.

* libgomp.texi (Top): Move www.openmp.org to https.
(Enabling OpenMP): Ditto.
(omp_get_active_level): Ditto.
(omp_get_ancestor_thread_num): Ditto.
(omp_get_cancellation): Ditto.
(omp_get_default_device): Ditto.
(omp_get_dynamic): Ditto.
(omp_get_level): Ditto.
(omp_get_max_active_levels): Ditto.
(omp_get_max_task_priority): Ditto.
(omp_get_max_threads): Ditto.
(omp_get_nested): Ditto.
(omp_get_num_devices): Ditto.
(omp_get_num_procs): Ditto.
(omp_get_num_teams): Ditto.
(omp_get_num_threads): Ditto.
(omp_get_proc_bind): Ditto.
(omp_get_schedule): Ditto.
(omp_get_team_num): Ditto.
(omp_get_team_size): Ditto.
(omp_get_thread_limit): Ditto.
(omp_get_thread_num): Ditto.
(omp_in_parallel): Ditto.
(omp_in_final): Ditto.
(omp_is_initial_device): Ditto.
(omp_set_default_device): Ditto.
(omp_set_dynamic): Ditto.
(omp_set_max_active_levels): Ditto.
(omp_set_nested): Ditto.
(omp_set_num_threads): Ditto.
(omp_set_schedule): Ditto.
(omp_init_lock): Ditto.
(omp_set_lock): Ditto.
(omp_test_lock): Ditto.
(omp_unset_lock): Ditto.
(omp_destroy_lock): Ditto.
(omp_init_nest_lock): Ditto.
(omp_set_nest_lock): Ditto.
(omp_test_nest_lock): Ditto.
(omp_unset_nest_lock): Ditto.
(omp_destroy_nest_lock): Ditto.
(omp_get_wtick): Ditto.
(omp_get_wtime): Ditto.
(OMP_CANCELLATION): Ditto.
(OMP_DISPLAY_ENV): Ditto.
(OMP_DEFAULT_DEVICE): Ditto.
(OMP_DYNAMIC): Ditto.
(OMP_MAX_ACTIVE_LEVELS): Ditto.
(OMP_MAX_TASK_PRIORITY): Ditto.
(OMP_NESTED): Ditto.
(OMP_NUM_THREADS): Ditto.
(OMP_PROC_BIND): Ditto.
(OMP_PLACES): Ditto.
(OMP_STACKSIZE): Ditto.
(OMP_SCHEDULE): Ditto.
(OMP_THREAD_LIMIT): Ditto.
(OMP_WAIT_POLICY): Ditto.

From-SVN: r261997

lto-streamer-out.c (tree_is_indexable): Make LABEL_DECL nonindexable unless it is forced or nonlocal...

* lto-streamer-out.c (tree_is_indexable): Make LABEL_DECL nonindexable
unless it is forced or nonlocal; assert that we stream no IMPORTED_DECL.

From-SVN: r261995

re PR fortran/85983 (ICE in check_dtio_interface1, at fortran/interface.c:4748)

2018-06-23  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

PR fortran/85983
* interface.c (check_dtio_interface1): Delete assert.

From-SVN: r261994

Daily bump.

From-SVN: r261992

[testsuite/guality] Fix tcl error on missing gdb

2018-06-24  Tom de Vries  <tdevries@suse.de>

* g++.dg/guality/guality.exp: Don't use which on gdb arg to report_gdb.
* gcc.dg/guality/guality.exp: Same.
* gfortran.dg/guality/guality.exp: Same.
* lib/gcc-gdb-test.exp: Do early out if which gdb fails.

From-SVN: r261988

decl.c (bad_specifiers): Add const location_t* parameter and use locations in error messages about...

/cp
2018-06-23  Paolo Carlini  <paolo.carlini@oracle.com>

* decl.c (bad_specifiers): Add const location_t* parameter and
use locations in error messages about 'inline' and 'virtual'.
(mark_inline_variable): Add location_t parameter and use it in
error_at and pedwarn messages.
(grokdeclarator): Use declspecs->locations[ds_constexpr],
declspecs->locations[ds_concept], declspecs->locations[ds_virtual],
declspecs->locations[ds_inline] in many error messages; adjust
bad_specifiers and mark_inline_variable calls.
(grokvardecl): Use declspecs->locations[ds_concept] in error message.

/testsuite
2018-06-23  Paolo Carlini  <paolo.carlini@oracle.com>

* g++.dg/concepts/locations1.C: New.
* g++.dg/cpp0x/locations1.C: Likewise.
* g++.dg/cpp1z/inline-var2.C: Test locations too.
* g++.dg/cpp1z/inline-var3.C: Likewise.

From-SVN: r261982

invoke.texi (mno-fancy-math-387): Update for changes made to OpenBSD and NetBSD through the years.

        * doc/invoke.texi (mno-fancy-math-387): Update for changes
        made to OpenBSD and NetBSD through the years.

From-SVN: r261981

runtime: use #ifdef instead of #if for USING_SPLIT_STACK

    USING_SPLIT_STACK is configured as defined/undefined, not 0/1.
    Most of the places test USING_SPLIT_STACK with #ifdef, with a
    few exceptions. This CL fixes the exceptions.

    Reviewed-on: https://go-review.googlesource.com/120596

From-SVN: r261980

Daily bump.

From-SVN: r261979

re PR fortran/86281 (SEGV in fortran/resolve.c:resolve_function)

2018-06-22  Paul Thomas  <pault@gcc.gnu.org>
    Rainer Orth  <ro@gcc.gnu.org>

PR fortran/86281
* resolve.c (resolve_contained_fntype): Check for the charlen
before testing the length.

2018-06-22  Paul Thomas  <pault@gcc.gnu.org>

PR fortran/86281
* gfortran.dg/assumed_charlen_function_7.f90: Add -std=legacy.

Co-Authored-By: Rainer Orth <ro@gcc.gnu.org>
From-SVN: r261975

rs6000-c.c (altivec_overloaded_builtins): Change behavior of vec_pack (vector double...

gcc/ChangeLog:

2018-06-22  Kelvin Nilsen  <kelvin@gcc.gnu.org>

* config/rs6000/rs6000-c.c (altivec_overloaded_builtins): Change
behavior of vec_pack (vector double, vector double) to match
behavior of vec_float2 (vector double, vector double).

gcc/testsuite/ChangeLog:

2018-06-22  Kelvin Nilsen  <kelvin@gcc.gnu.org>

* gcc.target/powerpc/builtins-3-p8.c (test_pack_float): Remove
this test.
* gcc.target/powerpc/builtins-9.c: New test.
* gcc.target/powerpc/fold-vec-pack-double.c: Modify dg directives
to expect different code generation on big-endian vs.
little-endian targets.

From-SVN: r261974

PR c++/86219 - ICE with erroneous initializer in template.

* constexpr.c (fold_non_dependent_expr): Add complain parm.
* call.c, expr.c, init.c, pt.c, semantics.c, typeck.c, typeck2.c:
Pass it.
* call.c (build_cxx_call): Don't mess with builtins in a template.
* typeck2.c (store_init_value): If fold_non_dependent_expr didn't
produce a constant value, go back to the uninstantiated form.

From-SVN: r261972

Avoid taking the address of something just because it's in parens.

* constexpr.c (same_type_ignoring_tlq_and_bounds_p): New.
(cxx_fold_indirect_ref): Use it.
(cxx_eval_constant_expression) [VIEW_CONVERT_EXPR]: Use it.
* cp-tree.h (REF_PARENTHESIZED_P): Allow VIEW_CONVERT_EXPR.
* semantics.c (force_paren_expr): Use VIEW_CONVERT_EXPR instead of
static_cast to reference type.
(maybe_undo_parenthesized_ref): Handle VIEW_CONVERT_EXPR.

From-SVN: r261971

[testsuite/guality] Use buildarea gdb by default in combined build

2018-06-22  Tom de Vries  <tdevries@suse.de>

* g++.dg/guality/guality.exp (guality_gdb_name): Default to
$rootme/../gdb/gdb, if available.
* gcc.dg/guality/guality.exp (guality_gdb_name): Same.
* gfortran.dg/guality/guality.exp (guality_gdb_name): Same.

From-SVN: r261935

[testsuite/guality] Be verbose about gdb version used

2018-06-22  Tom de Vries  <tdevries@suse.de>

* lib/gcc-gdb-test.exp (report_gdb): New proc.
* g++.dg/guality/guality.exp: Use report_gdb.
* gcc.dg/guality/guality.exp: Same.
* gfortran.dg/guality/guality.exp: Same.

From-SVN: r261911

re PR c++/85662 ("error: non-constant condition for static assertion" from __builtin_offsetof in C++)

PR c++/85662
* g++.dg/ext/offsetof3.C: New test.

From-SVN: r261909

Improve entry/exit instrumentation for nested functions

2018-06-22  Olivier Hainque  <hainque@adacore.com>

* gimplify.c (gimplify_function_tree): Prevent creation
of a trampoline for the address of the current function
passed to entry/exit instrumentation hooks.

From-SVN: r261908

Forgot PR target/86222 in ChangeLog

From-SVN: r261906

rs6000-string.c (expand_strn_compare): Handle -m32 correctly.

2018-06-22  Aaron Sawdey  <acsawdey@linux.ibm.com>

* config/rs6000/rs6000-string.c (expand_strn_compare): Handle -m32
correctly.

From-SVN: r261905

altivec-7.c: Add qualifiers for counts on AIX versus Linux.

gcc/testsuite/ChangeLog:

2018-06-22  Carl Love  <cel@us.ibm.com>

  * gcc.target/powerpc/altivec-7.c: Add qualifiers for counts on AIX
versus Linux.  Change checks for xxlnor, xxland and xxlxor to also look
for the vnor, vand and vxor instructions.
* gcc.target/powerpc/builtins-1.c: Move vec_or tests to a new file.
Remove counts for xxlor. Fix match on bl __divdi3 and bl __udivdi3.
* gcc.target/powerpc/builtins-4.c: Fix matching for vsl instructions.
* gcc.target/powerpc/builtins-5.c: New test file for vec_or test cases.
  * gcc.target/powerpc/vsx-vector-6.p7.c: Fix xxlnor BE expected count.
Add -dp to dg-options, update expected counts.

From-SVN: r261904

Fix test case failures for pdp11 target.

* gcc.c-torture/execute/builtins/lib/chk.c: Use smaller alignment
if pdp11.
* gcc.c-torture/compile/20010518-2.c: Skip if pdp11 -mint32.
* gcc.c-torture/compile/20040101-1.c: Ditto.
* gcc.c-torture/compile/20050622-1.c: Ditto.
* gcc.c-torture/compile/20080625-1.c: Ditto.
* gcc.c-torture/compile/20090107-1.c: Ditto.
* gcc.c-torture/compile/920501-12.c: Ditto.
* gcc.c-torture/compile/920501-4.c: Ditto.
* gcc.c-torture/compile/961203-1.c: Ditto.
* gcc.c-torture/compile/limits-externdecl.c: Ditto.
* gcc.c-torture/compile/pr25310.c: Ditto.

From-SVN: r261897

syscall: remove Ustat

    glibc 2.28 removes ustat.h and the ustat function entirely, which
    breaks syscall.Ustat.

    Updates golang/go#25990

    Reviewed-on: https://go-review.googlesource.com/120535

From-SVN: r261896

Fix unexported basic_string symbols for 32-bit targets

* config/abi/pre/gnu.ver: Fix __cxx11::basic_string patterns for
different size_t mangling on 32-bit targets.

From-SVN: r261892

PR libstdc++/86280 fix undefined left shift on 32-bit targets

PR libstdc++/86280
* include/experimental/memory_resource
(__resource_adaptor_common::_AlignMgr::_M_token_size): Use type large
enough for result of left shift.

From-SVN: r261888

Fix emission of jump tables (PR tree-optimization/86263).

2018-06-22  Martin Liska  <mliska@suse.cz>

        PR tree-optimization/86263
* tree-switch-conversion.c (jump_table_cluster::find_jump_tables):
        Bail out if is_enabled is false.
* tree-switch-conversion.h (jump_table_cluster::is_enabled):
        New declaration.
(jump_table_cluster::is_enabled): New function.

From-SVN: r261886

lto-streamer-out.c (DFS::DFS_write_tree_body): Do not stream BINFO_BASE_ACCESSES and BINFO_VPTR_FIELD.

* lto-streamer-out.c (DFS::DFS_write_tree_body): Do not stream
BINFO_BASE_ACCESSES and BINFO_VPTR_FIELD.
* tree-streamer-in.c (streamer_read_tree_bitfields): Likewise.
(lto_input_ts_binfo_tree_pointers): Likewise.
* tree-streamer-out.c (streamer_write_tree_bitfields,
write_ts_binfo_tree_pointers): Likewise.
* tree.c (free_lang_data_in_binfo): Clear BINFO_VPTR_FIELD.

From-SVN: r261885

Update OpenACC testcases

gcc/testsuite/
* c-c++-common/goacc/deviceptr-4.c: New file.
* c-c++-common/goacc/kernels-counter-var-redundant-load.c:
Likewise.
* c-c++-common/goacc/kernels-loop-data-2.c: Likewise.
* c-c++-common/goacc/kernels-loop-data-enter-exit-2.c: Likewise.
* c-c++-common/goacc/kernels-loop-data-enter-exit.c: Likewise.
* c-c++-common/goacc/kernels-loop-data-update.c: Likewise.
* c-c++-common/goacc/kernels-loop-data.c: Likewise.
* c-c++-common/goacc/kernels-parallel-loop-data-enter-exit.c:
Likewise.
* c-c++-common/goacc/parallel-reduction.c: Likewise.
* c-c++-common/goacc/private-reduction-1.c: Likewise.
* gfortran.dg/goacc/kernels-parallel-loop-data-enter-exit.f95:
Likewise.
* gfortran.dg/goacc/modules.f95: Likewise.
* gfortran.dg/goacc/routine-8.f90: Likewise.
* gfortran.dg/goacc/routine-level-of-parallelism-1.f90: Likewise.
libgomp/
* testsuite/libgomp.oacc-c-c++-common/loop-red-wv-1.c: Don't force "-O2".
* testsuite/libgomp.oacc-c-c++-common/data-2.c: Update.
* testsuite/libgomp.oacc-c-c++-common/host_data-1.c: Likewise.
* testsuite/libgomp.oacc-c-c++-common/mode-transitions.c: Likewise.
* testsuite/libgomp.oacc-fortran/data-1.f90: Likewise.
* testsuite/libgomp.oacc-fortran/data-2.f90: Likewise.
* testsuite/libgomp.oacc-c++/non-scalar-data.C: New file.
* testsuite/libgomp.oacc-c-c++-common/declare-3.c: Likewise.
* testsuite/libgomp.oacc-c-c++-common/enter-data.c: Likewise.
* testsuite/libgomp.oacc-c-c++-common/kernels-loop-data-2.c:
Likewise.
* testsuite/libgomp.oacc-c-c++-common/kernels-loop-data-enter-exit-2.c:
Likewise.
* testsuite/libgomp.oacc-c-c++-common/kernels-loop-data-enter-exit.c:
Likewise.
* testsuite/libgomp.oacc-c-c++-common/kernels-loop-data-update.c:
Likewise.
* testsuite/libgomp.oacc-c-c++-common/kernels-loop-data.c:
Likewise.
* testsuite/libgomp.oacc-c-c++-common/kernels-parallel-loop-data-enter-exit.c:
Likewise.
* testsuite/libgomp.oacc-c-c++-common/kernels-private-vars-local-worker-1.c:
Likewise.
* testsuite/libgomp.oacc-c-c++-common/kernels-private-vars-local-worker-2.c:
Likewise.
* testsuite/libgomp.oacc-c-c++-common/kernels-private-vars-local-worker-3.c:
Likewise.
* testsuite/libgomp.oacc-c-c++-common/kernels-private-vars-local-worker-4.c:
Likewise.
* testsuite/libgomp.oacc-c-c++-common/kernels-private-vars-local-worker-5.c:
Likewise.
* testsuite/libgomp.oacc-c-c++-common/kernels-private-vars-loop-gang-1.c:
Likewise.
* testsuite/libgomp.oacc-c-c++-common/kernels-private-vars-loop-gang-2.c:
Likewise.
* testsuite/libgomp.oacc-c-c++-common/kernels-private-vars-loop-gang-3.c:
Likewise.
* testsuite/libgomp.oacc-c-c++-common/kernels-private-vars-loop-gang-4.c:
Likewise.
* testsuite/libgomp.oacc-c-c++-common/kernels-private-vars-loop-gang-5.c:
Likewise.
* testsuite/libgomp.oacc-c-c++-common/kernels-private-vars-loop-gang-6.c:
Likewise.
* testsuite/libgomp.oacc-c-c++-common/kernels-private-vars-loop-vector-1.c:
Likewise.
* testsuite/libgomp.oacc-c-c++-common/kernels-private-vars-loop-vector-2.c:
Likewise.
* testsuite/libgomp.oacc-c-c++-common/kernels-private-vars-loop-worker-1.c:
Likewise.
* testsuite/libgomp.oacc-c-c++-common/kernels-private-vars-loop-worker-2.c:
Likewise.
* testsuite/libgomp.oacc-c-c++-common/kernels-private-vars-loop-worker-3.c:
Likewise.
* testsuite/libgomp.oacc-c-c++-common/kernels-private-vars-loop-worker-4.c:
Likewise.
* testsuite/libgomp.oacc-c-c++-common/kernels-private-vars-loop-worker-5.c:
Likewise.
* testsuite/libgomp.oacc-c-c++-common/kernels-private-vars-loop-worker-6.c:
Likewise.
* testsuite/libgomp.oacc-c-c++-common/kernels-private-vars-loop-worker-7.c:
Likewise.
* testsuite/libgomp.oacc-c-c++-common/kernels-reduction-1.c:
Likewise.
* testsuite/libgomp.oacc-c-c++-common/parallel-loop-1.c: Likewise.
* testsuite/libgomp.oacc-c-c++-common/parallel-loop-1.h: Likewise.
* testsuite/libgomp.oacc-c-c++-common/parallel-loop-2.h: Likewise.
* testsuite/libgomp.oacc-fortran/cublas-fixed.h: Likewise.
* testsuite/libgomp.oacc-fortran/dummy-array.f90: Likewise.
* testsuite/libgomp.oacc-fortran/host_data-2.f90: Likewise.
* testsuite/libgomp.oacc-fortran/host_data-3.f: Likewise.
* testsuite/libgomp.oacc-fortran/host_data-4.f90: Likewise.
* testsuite/libgomp.oacc-fortran/kernels-acc-loop-reduction-2.f90:
Likewise.
* testsuite/libgomp.oacc-fortran/kernels-acc-loop-reduction.f90:
Likewise.
* testsuite/libgomp.oacc-fortran/kernels-collapse-3.f90: Likewise.
* testsuite/libgomp.oacc-fortran/kernels-collapse-4.f90: Likewise.
* testsuite/libgomp.oacc-fortran/kernels-independent.f90:
Likewise.
* testsuite/libgomp.oacc-fortran/kernels-loop-1.f90: Likewise.
* testsuite/libgomp.oacc-fortran/kernels-map-1.f90: Likewise.
* testsuite/libgomp.oacc-fortran/kernels-parallel-loop-data-enter-exit.f95:
Likewise.
* testsuite/libgomp.oacc-fortran/kernels-private-vars-loop-gang-1.f90:
Likewise.
* testsuite/libgomp.oacc-fortran/kernels-private-vars-loop-gang-2.f90:
Likewise.
* testsuite/libgomp.oacc-fortran/kernels-private-vars-loop-gang-3.f90:
Likewise.
* testsuite/libgomp.oacc-fortran/kernels-private-vars-loop-gang-6.f90:
Likewise.
* testsuite/libgomp.oacc-fortran/kernels-private-vars-loop-vector-1.f90:
Likewise.
* testsuite/libgomp.oacc-fortran/kernels-private-vars-loop-vector-2.f90:
Likewise.
* testsuite/libgomp.oacc-fortran/kernels-private-vars-loop-worker-1.f90:
Likewise.
* testsuite/libgomp.oacc-fortran/kernels-private-vars-loop-worker-2.f90:
Likewise.
* testsuite/libgomp.oacc-fortran/kernels-private-vars-loop-worker-3.f90:
Likewise.
* testsuite/libgomp.oacc-fortran/kernels-private-vars-loop-worker-4.f90:
Likewise.
* testsuite/libgomp.oacc-fortran/kernels-private-vars-loop-worker-5.f90:
Likewise.
* testsuite/libgomp.oacc-fortran/kernels-private-vars-loop-worker-6.f90:
Likewise.
* testsuite/libgomp.oacc-fortran/kernels-private-vars-loop-worker-7.f90:
Likewise.
* testsuite/libgomp.oacc-fortran/kernels-reduction-1.f90:
Likewise.
* testsuite/libgomp.oacc-fortran/lib-12.f90: Likewise.
* testsuite/libgomp.oacc-fortran/lib-13.f90: Likewise.
* testsuite/libgomp.oacc-fortran/lib-14.f90: Likewise.
* testsuite/libgomp.oacc-fortran/lib-15.f90: Likewise.
* testsuite/libgomp.oacc-fortran/parallel-loop-1.f90: Likewise.
* testsuite/libgomp.oacc-fortran/reference-reductions.f90: Likewise.
* testsuite/libgomp.oacc-fortran/vector-routine.f90: Likewise.

Co-Authored-By: James Norris <jnorris@codesourcery.com>
Co-Authored-By: Julian Brown <julian@codesourcery.com>
Co-Authored-By: Thomas Schwinge <thomas@codesourcery.com>
Co-Authored-By: Tom de Vries <tom@codesourcery.com>
From-SVN: r261884

* tree.c (free_lang_data_in_type): Free all TYPE_VFIELDs.

From-SVN: r261883

Make symbol_summary::get and call_summary::get pure.

2018-06-22  Martin Liska  <mliska@suse.cz>

* symbol-summary.h (get): Make it pure and inline move
        functionality from ::get function.
        (get): Remove and inline into ::get and ::get_create.
        (get_create): Move code from ::get function.

From-SVN: r261882

Don't preprocess .S files with -P on Solaris/x86 (PR target/85994)

PR target/85994
* config/i386/sol2.h (CPP_SPEC): Don't pass -P for
-x assembler-with-cpp.

From-SVN: r261880

Have g++ define _FILE_OFFSET_BITS=64 on Solaris

* config/sol2.h (TARGET_OS_CPP_BUILTINS): Define
_FILE_OFFSET_BITS=64 for C++.

From-SVN: r261879

2018-06-21  François Dumont  <fdumont@gcc.gnu.org>
Fix this ChangeLog entry.

From-SVN: r261878

Daily bump.

From-SVN: r261877

PR libstdc++/86138 prevent implicit instantiation of COW empty rep

The explicit instantiation declarations for std::basic_string are
disabled for C++17 (and later) so that basic_string symbols get
implicitly instantiated in every translation unit that needs them.  On
targets that don't support STB_GNU_UNIQUE this leads to multiple copies
of the empty rep symbol for COW strings. In order to detect whether a
COW string needs to deallocate its storage it compares the address with
the empty rep.  When there are multiple copies of the empty rep object
the address is not unique, and so string destructors try to delete the
empty rep, which crashes.

In order to guarantee uniqueness of the _S_empty_rep_storage symbol this
patch adds an explicit instantiation declaration for just that symbol.
This means the other symbols are still implicitly instantiated in C++17
code, but for the empty rep the definition in the library gets used.

Separately, there is no need for C++17 code to implicitly instantiate
the I/O functions for strings, so this also restores the explicit
instantiation declarations for those functions.

PR libstdc++/86138
* include/bits/basic_string.tcc:
[__cplusplus > 201402 && !_GLIBCXX_USE_CXX11_ABI]
(basic_string<char>::_Rep::_S_empty_rep_storage)
(basic_string<wchar_t>::_Rep::_S_empty_rep_storage): Add explicit
instantiation declarations.
[__cplusplus > 201402] (operator>>, operator<<, getline): Re-enable
explicit instantiation declarations.
* testsuite/21_strings/basic_string/cons/char/86138.cc: New.
* testsuite/21_strings/basic_string/cons/wchar_t/86138.cc: New.

From-SVN: r261873

pack02.c: Use __ibm128 instead of long double if the long double format is IEEE 128-bit...

2018-06-21  Michael Meissner  <meissner@linux.ibm.com>

* gcc.target/powerpc/pack02.c: Use __ibm128 instead of long double
if the long double format is IEEE 128-bit for tests that are
explicitly testing IBM extended double support.  Use the
appropriate pack and unpack built-in functions.  Change calls from
__builtin_isinfl to __builtin_isinf since the later supports all
floating point types.
* gcc.target/powerpc/pr57150.c: Likewise.
* gcc.target/powerpc/pr60203.c: Likewise.
* gcc.target/powerpc/pr67808.c: Likewise.
* gcc.target/powerpc/pr70117.c: Likewise.
* gcc.target/powerpc/tfmode_off.c: Likewise.

From-SVN: r261872

cmd/go: re-enable a couple of tests of gccgo

    Port https://golang.org/cl/120375 over to the gofrontend repo so that
    it gets more reliable testing.

    Updates golang/go#22472

    Reviewed-on: https://go-review.googlesource.com/120395

From-SVN: r261871

rs6000.c (init_float128_ieee): Prevent complex multiply and divide external functions from being created more...

2018-06-23  Michael Meissner  <meissner@linux.ibm.com>

* config/rs6000/rs6000.c (init_float128_ieee): Prevent complex
multiply and divide external functions from being created more
than once.

From-SVN: r261870

rs6000.md (neg<mode>2_internal): Use the correct mode to check whether the mode is IBM extended.

2018-06-21  Michael Meissner  <meissner@linux.ibm.com>

* config/rs6000/rs6000.md (neg<mode>2_internal): Use the correct
mode to check whether the mode is IBM extended.

From-SVN: r261869

re PR fortran/49630 ([OOP] ICE on obsolescent deferred-length type bound character function)

2018-06-21  Paul Thomas  <pault@gcc.gnu.org>

PR fortran/49630
* resolve.c (resolve_contained_fntype): Change standard ref.
from F95 to F2003: C418. Correct a spelling error in a comment.
It is an error for an abstract interface to have an assumed
character length result.
* trans-expr.c (gfc_conv_procedure_call): Likewise change the
standard reference.

2018-06-21  Paul Thomas  <pault@gcc.gnu.org>

PR fortran/49630
* gfortran.dg/assumed_charlen_function_7.f90: New test.

From-SVN: r261868

rs6000.md (extendtfif2): Add missing 128-bit conversion insn that shows up when...

2018-06-21  Michael Meissner  <meissner@linux.ibm.com>

* config/rs6000/rs6000.md (extendtfif2): Add missing 128-bit
conversion insn that shows up when pr85657-3.c is compiled using
IEEE 128-bit long double.

From-SVN: r261867

PR libstdc++/83328 add correct basic_string::insert for initializer_list

The SSO basic_string has a non-standard insert(iterator, initializer_list)
overload, from a C++0x draft. This adds the correct overload, while also
preserving the old one so that the old symbol is still exported from the
library.

The COW basic_string doesn't have any of the C++11 changes to the insert
overloads (they all still have non-const iterator parameters and the
ones that should return an iterator still return void). This doesn't
make any change to the COW string.

PR libstdc++/83328
* acinclude.m4 (libtool_VERSION): Bump to 6:26:0.
* config/abi/pre/gnu.ver: Add GLIBCXX_3.4.26 and export new symbol.
* configure: Regenerate.
* include/bits/basic_string.h [_GLIBCXX_USE_CXX11_ABI]
(basic_string::insert(const_iterator, initializer_list<C>)): Add.
[_GLIBCXX_USE_CXX11_ABI && !_GLIBCXX_DEFINING_STRING_INSTANTIATIONS]
(basic_string::insert(iterator, initializer_list<C>)): Suppress
definition.
* include/debug/string (basic_string::insert(iterator, C)): Change
first parameter to const_iterator.
(basic_string::insert(iterator, size_type, C)): Likewise. Change
return type to iterator.
(basic_string::insert(iterator, InputIterator, InputIterator)):
Likewise.
(basic_string::insert(iterator, initializer_list<C>)): Change first
parameter to const_iterator and return type to iterator.
* src/c++11/string-inst.cc: Extend comment.
* testsuite/21_strings/basic_string/modifiers/insert/char/83328.cc:
New.
* testsuite/21_strings/basic_string/modifiers/insert/wchar_t/83328.cc:
New.
* testsuite/util/testsuite_abi.cc: Add new symbol version.

From-SVN: r261866

* config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.

From-SVN: r261865

* pt.c (tsubst) [TEMPLATE_TYPE_PARM]: Use TEMPLATE_PARM_DESCENDANTS.

From-SVN: r261861

Reduce garbage from push_to_top_level.

* name-lookup.c (do_push_to_top_level): Don't allocate
current_lang_base.
(do_pop_from_top_level): Release current_lang_base.

From-SVN: r261860

Let -fmem-report see callers of cxx_make_type.

* lex.c (cxx_make_type): Add MEM_STAT_DECL.
(make_class_type): Likewise.
(cxx_make_type_hook): New.
* cp-objcp-common.h (LANG_HOOKS_MAKE_TYPE): Use cxx_make_type_hook.

From-SVN: r261859

PR c++/86182 - fix wrong PR tag in earlier commit

From-SVN: r261858

re PR fortran/83118 (Bad intrinsic assignment of class(*) array component of derived type)

2018-06-21  Paul Thomas  <pault@gcc.gnu.org>

PR fortran/83118
* resolve.c (resolve_ordinary_assign): Force the creation of a
vtable for assignment of non-polymorphic expressions to an
unlimited polymorphic object.
* trans-array.c (gfc_alloc_allocatable_for_assignment): Use the
size of the rhs type for such assignments. Set the dtype, _len
and vptrs appropriately.
* trans-expr.c (gfc_trans_assignment): Force the use of the
_copy function for these assignments.

2018-06-21  Paul Thomas  <pault@gcc.gnu.org>

PR fortran/83118
* gfortran.dg/unlimited_polymorphic_30.f03: New test.

From-SVN: r261857

cfgrtl.c (fixup_reorder_chain): Do not emit NOPs in DECL_IGNORED_P functions.

* cfgrtl.c (fixup_reorder_chain): Do not emit NOPs in DECL_IGNORED_P
functions.
(rtl_merge_blocks): Likewise.  Do not emit a NOP if the location of
the edge can be forwarded.
(cfg_layout_merge_blocks): Likewise.

From-SVN: r261856

except.c (finish_eh_generation): Commit edge insertions only after the EH edges have been redirected from...

* except.c (finish_eh_generation): Commit edge insertions only after
the EH edges have been redirected from post-landing to landing pads.

From-SVN: r261855

tree-nested.c (get_frame_type): Use create_tmp_var_raw instead of create_tmp_var_for to create the FRAME decl.

* tree-nested.c (get_frame_type): Use create_tmp_var_raw instead of
create_tmp_var_for to create the FRAME decl.
(finalize_nesting_tree_1): Do not unchain the FRAME decl.

From-SVN: r261854

tree-inline.c (copy_edges_for_bb): Minor tweak.

* tree-inline.c (copy_edges_for_bb): Minor tweak.
(maybe_move_debug_stmts_to_successors): Also reset the locus of the
debug statement when resetting its value.
(expand_call_inline): Copy the locus of the call onto the assignment
of the return value, if any.  Use local variable in more cases.

From-SVN: r261853

PR libstdc++/70940 make pmr::resource_adaptor return aligned memory

PR libstdc++/70940
* include/experimental/memory_resource
(__resource_adaptor_imp::do_deallocate): Add missing return.
* testsuite/experimental/memory_resource/new_delete_resource.cc: New.
* testsuite/experimental/memory_resource/resource_adaptor.cc: Test
resource_adaptor with std::allocator, __gnu_cxx::new_allocator and
__gnu_cxx::malloc_allocator.

From-SVN: r261851

PR libstdc++/70940 make pmr::resource_adaptor return aligned memory

PR libstdc++/70940
* include/experimental/memory_resource (__resource_adaptor_common):
New base class.
(__resource_adaptor_common::_AlignMgr): Helper for obtaining aligned
pointer from unaligned, and vice versa.
(__resource_adaptor_imp::do_allocate): Use _AlignMgr to adjust
allocated pointer to meet alignment request.
(__resource_adaptor_imp::do_deallocate): Use _AlignMgr to retrieve
original pointer for deallocation.
(__resource_adaptor_imp::do_is_equal): Reformat.
(__resource_adaptor_imp::_S_aligned_size): Remove.
(__resource_adaptor_imp::_S_supported): Remove.
(new_delete_resource): Use __gnu_cxx::new_allocator.
* testsuite/experimental/memory_resource/resource_adaptor.cc: Test
extended alignments and use debug_allocator to check for matching
allocate/deallocate pairs.

From-SVN: r261849

IPA summaries use ::get in ipa-pure-const.c.

2018-06-21  Martin Liska  <mliska@suse.cz>

* ipa-pure-const.c (propagate_nothrow): Use
        funct_state_summaries->get.
(dump_malloc_lattice): Likewise.
(propagate_malloc): Likewise.

From-SVN: r261848

lto-streamer-out.c (DFS::DFS_write_tree_body): Update outdated comment.

2018-06-21  Richard Biener  <rguenther@suse.de>

* lto-streamer-out.c (DFS::DFS_write_tree_body): Update outdated
comment.  Follow BLOCK_ABSTRACT_ORIGIN unconditionally.
* tree-streamer-in.c (lto_input_ts_block_tree_pointers): Update
comment.
* tree-streamer-out.c (write_ts_block_tree_pointers): Stream
BLOCK_ABSTRACT_ORIGIN unconditionally.

From-SVN: r261847

Fix IPA crash in libgccjit

gcc/ChangeLog:
* ipa-cp.c (ipcp_driver): Set edge_clone_summaries to NULL after
deleting it.
* ipa-reference.c (ipa_reference_c_finalize): Delete
ipa_ref_opt_sum_summaries and set it to NULL.

From-SVN: r261846

[testsuite] Fix guality/pr45882.c for flto

Atm this test in pr45882.c fails:
...
  int d = a[i];  /* { dg-final { gdb-test 16 "d" "112" } } */
...
as follows:
...
FAIL: gcc.dg/guality/pr45882.c   -O2 -flto -fuse-linker-plugin \
      -fno-fat-lto-objects  line 16 d == 112
...

In more detail, gdb fails to print the value of d:
...
Breakpoint 1, foo (i=i@entry=7, j=j@entry=7) at pr45882.c:16
16        ++v;
$1 = <optimized out>
$2 = 112
<optimized out> != 112
...

Variable d is a local variable in function foo, initialized from global array a.
When compiling, first cddce1 removes the initialization of d in foo, given
that d is not used afterwards.  Then ipa marks array a as write-only, and
removes the stores to array a in main.  This invalidates the location
expression for d, which points to a[i], so it is removed, which is why gdb
ends up printing <optimized out> for d.

This patches fixes the fail by adding attribute used to array a, preventing
array a from being marked as write-only.

Tested on x86_64.

2018-06-21  Tom de Vries  <tdevries@suse.de>

* gcc.dg/guality/pr45882.c (a): Add used attribute.

From-SVN: r261845

[tail-merge] Fix side-effect test in stmt_local_def

2018-06-21  Tom de Vries  <tdevries@suse.de>

PR tree-optimization/85859
* tree-ssa-tail-merge.c (stmt_local_def): Copy gimple_is_call
test with comment from bb_no_side_effects_p.

* gcc.dg/pr85859.c: New test.

From-SVN: r261844

re PR tree-optimization/86232 (ICE in record_estimate, at tree-ssa-loop-niter.c:3258)

2018-06-21  Richard Biener  <rguenther@suse.de>

PR tree-optimization/86232
* tree-ssa-loop-niter.c (number_of_iterations_popcount): Adjust
max for constant niter.

* gcc.dg/torture/pr86232.c: New testcase.

From-SVN: r261843