bb-reorder: convert to gcc_stablesort

* bb-reorder.c (edge_order): Convert to C-qsort-style
tri-state comparator.
(reorder_basic_blocks_simple): Change std::stable_sort to gcc_stablesort.

From-SVN: r264068

tree-loop-distribution: convert to gcc_stablesort

* tree-loop-distribution.c (offset_cmp): Convert to C-qsort-style
tri-state comparator.
(fuse_memset_builtins): Change std::stable_sort to gcc_stablesort.

From-SVN: r264067

introduce gcc_stablesort

* sort.cc (struct sort_ctx): New field 'nlim'.  Use it...
(mergesort): ... here as maximum count for using netsort.
(gcc_qsort): Set nlim to 3 if stable sort is requested.
(gcc_stablesort): New.
* system.h (gcc_stablesort): Declare.

From-SVN: r264066

qsort_chk: call from gcc_qsort instead of wrapping it

* sort.cc (gcc_qsort) [CHECKING_P]: Call qsort_chk.
* system.h (qsort): Always redirect to gcc_qsort.  Update comment.
* vec.c (qsort_chk): Do not call gcc_qsort.  Update comment.

From-SVN: r264065

rs6000: lxsdux / stxsdux do not exist

Our md files refer to {l,st}xsd%U<n>x, but no {l,st}xsdux insns exist.
This patch removes the update forms.  All these use  constraint "Z"
which does not allow update form, so there is no practical difference.

* config/rs6000/rs6000.md (*mov<mode>_hardfloat32): Remove %U from the
lxsdx and stxsdx alternatives.
(*mov<mode>_hardfloat64): Ditto.
* config/rs6000/vsx.md (*vsx_extract_<mode>_store): Ditto.

From-SVN: r264064

PR libstdc++/78179 run long double tests separately

Split the long double testing into a separate file, so that we can XFAIL
targets where the long double precision doesn't meet the expected
tolerances. The float and double tests are still expefted to PASS for
all targets.

PR libstdc++/78179
* testsuite/26_numerics/headers/cmath/hypot-long-double.cc: New test
that runs the long double part of hypot.cc.
* testsuite/26_numerics/headers/cmath/hypot.cc: Disable long double
tests unless TEST_HYPOT_LONG_DOUBLE is defined.

From-SVN: r264063

re PR tree-optimization/87200 (ICE in set_ssa_val_to, at tree-ssa-sccvn.c:3629)

2018-09-03  Richard Biener  <rguenther@suse.de>

PR tree-optimization/87200
* tree-ssa-sccvn.c (vn_nary_build_or_lookup_1): Valueize a
simplify result.

* gcc.dg/torture/pr87200.c: New testcase.

From-SVN: r264062

Fix vector::_Temporary_value::_M_ptr

The pointer argument to allocator_traits::construct and
allocator_traits::destroy should be a raw pointer, not the allocator's
pointer type. _Temporary_value::_M_ptr was returning the wrong type.

* include/bits/stl_vector.h (vector::_Temporary_value::_M_ptr):
Return raw pointer not allocator's pointer type.
(vector::_Temporary_value::_M_val): Use _M_ptr.

From-SVN: r264061

PR libstdc++/87194 fix range insertion into maps and sets

Since C++11 range insertion and construction of maps and sets from a
pair of iterators only requires that the iterator's value_type is
convertible to the container's value_type (previously it had to be the
same).

This fixes the implementation to meet that relaxed requirement, by
defining a pair of overloads that either insert or emplace, depending on
the iterator's value_type. Instead of adding yet another overload of
_M_insert_unique and _M_insert_equal, the overloads taking iterators are
renamed to _M_insert_range_unique and _M_insert_range_equal.

PR libstdc++/87194
* include/bits/stl_map.h
(map::map(initializer_list<value_type>, const Compare&, const Alloc&))
(map::map(initializer_list<value_type>, const Alloc&))
(map::map(InputIterator, InputIterator, const Alloc&))
(map::map(InputIterator, InputIterator))
(map::map(InputIterator, InputIterator, const Compare&, const Alloc&))
(map::insert(InputIterator, InputIterator)):
Call _M_insert_range_unique instead of _M_insert_unique.
* include/bits/stl_multimap.h
(multimap::multimap(initializer_list<value_type>, const C&, const A&))
(multimap::multimap(initializer_list<value_type>, const A&))
(multimap::multimap(InputIterator, InputIterator, const A&))
(multimap::multimap(InputIterator, InputIterator))
(multimap::multimap(InputIterator, InputIterator, const C&, const A&))
(multimap::insert(InputIterator, InputIterator)): Call
_M_insert_range_equal instead of _M_insert_equal.
* include/bits/stl_multiset.h
(multiset::multiset(InputIterator, InputIterator))
(multiset::multiset(InputIterator, InputIterator, const C&, const A&))
(multiset::multiset(initializer_list<value_type>, const C&, const A&))
(multiset::multiset(initializer_list<value_type>, const A&))
(multiset::multiset(InputIterator, InputIterator, const A&))
(multiset::insert(InputIterator, InputIterator)): Call
_M_insert_range_equal instead of _M_insert_equal.
* include/bits/stl_set.h
(set::set(InputIterator, InputIterator))
(set::set(InputIterator, InputIterator, const Compare&, const Alloc&))
(set::set(initializer_list<value_type>, const Compare&, const Alloc&))
(set::set(initializer_list<value_type>, const Alloc&))
(set::set(InputIterator, InputIterator, const Alloc&))
(set::insert(InputIterator, InputIterator)):
Call _M_insert_range_unique instead of _M_insert_unique.
* include/bits/stl_tree.h
[__cplusplus >= 201103L] (_Rb_tree::__same_value_type): New alias
template for SFINAE constraints.
[__cplusplus >= 201103L] (_Rb_tree::_M_insert_range_unique): Pair of
constrained overloads that either insert or emplace, depending on
iterator's value_type.
[__cplusplus >= 201103L] (_Rb_tree::_M_insert_range_equal): Likewise.
[__cplusplus < 201103L] (_Rb_tree::_M_insert_range_unique)
(_Rb_tree::_M_insert_range_equal): New functions replacing range
versions of _M_insert_unique and _M_insert_equal.
(_Rb_tree::_M_insert_unique(_InputIterator, _InputIterator))
(_Rb_tree::_M_insert_equal(_InputIterator, _InputIterator)): Remove.
* testsuite/23_containers/map/modifiers/insert/87194.cc: New test.
* testsuite/23_containers/multimap/modifiers/insert/87194.cc: New test.
* testsuite/23_containers/multiset/modifiers/insert/87194.cc: New test.
* testsuite/23_containers/set/modifiers/insert/87194.cc: New test.

From-SVN: r264060

PR libstdc++/78595 implement insertion into maps in terms of emplace

C++14 simplified the specification of the generic insert function
templates to be equivalent to calling emplace (or emplace_hint).
Defining them in terms of emplace takes care of the problems described
in PR 78595, ensuring a single conversion to value_type is done at the
right time.

PR libstdc++/78595
* include/bits/stl_map.h (map::insert(_Pair&&))
(map::insert(const_iterator, _Pair&&)): Do emplace instead of insert.
* include/bits/stl_multimap.h (multimap::insert(_Pair&&))
(multimap::insert(const_iterator, _Pair&&)): Likewise.
* include/bits/unordered_map.h (unordered_map::insert(_Pair&&))
(unordered_map::insert(const_iterator, _Pair&&))
(unordered_multimap::insert(_Pair&&))
(unordered_multimap::insert(const_iterator, _Pair&&)): Likewise.
* testsuite/23_containers/map/modifiers/insert/78595.cc: New test.
* testsuite/23_containers/multimap/modifiers/insert/78595.cc: New test.
* testsuite/23_containers/unordered_map/modifiers/78595.cc: New test.
* testsuite/23_containers/unordered_multimap/modifiers/78595.cc: New
test.

From-SVN: r264059

Fix thinko (PR tree-optimization/87201).

2018-09-03  Martin Liska  <mliska@suse.cz>

PR tree-optimization/87201
* tree-switch-conversion.c (switch_decision_tree::balance_case_nodes):
Fix parenthesis in an expression.

From-SVN: r264058

re PR tree-optimization/87197 (ICE in is_gimple_reg_type at gimple-expr.h:75 since r264021)

2018-09-03  Richard Biener  <rguenther@suse.de>

PR tree-optimization/87197
* tree-ssa-sccvn.c (vn_nary_build_or_lookup_1): Mark the new def
visited.  CSE the VN_INFO hashtable lookup.

* gcc.dg/torture/pr87197.c: New testcase.

PR tree-optimization/87169
* tree-ssa-sccvn.c (do_rpo_vn): When marking loops for not
iterating make sure there's no extra backedges from irreducible
regions feeding the header.  Mark the destination block
executable.

* gcc.dg/torture/pr87169.c: New testcase.

From-SVN: r264057

fixincludes: vxworks: remove unnecessary parentheses in ioctl wrapper macro

The rationale for the fixinclude ioctl macro wrapper is, as far as I can
tell (https://gcc.gnu.org/ml/gcc-patches/2012-09/msg01619.html)

  Fix 2: Add hack for ioctl() on VxWorks.

  ioctl() is supposed to be variadic, but VxWorks only has a three
  argument version with the third argument of type int.  This messes up
  when the third argument is not implicitly convertible to int.  This
  adds a macro which wraps around ioctl() and explicitly casts the third
  argument to an int.  This way, the most common use case of ioctl (with
  a const char * for the third argument) will compile in C++, where
  pointers must be explicitly casted to int.

However, we have existing C++ code that calls the ioctl function via

  ::ioctl(foo, bar, baz)

and obviously this breaks when it gets expanded to

  ::(ioctl)(foo, bar, (int)(baz))

Since the GNU C preprocessor already prevents recursive expansion of
function-like macros, the parentheses around ioctl are unnecessary.

Incidentally, there is also a macro sioIoctl() in the vxworks sioLib.h
header that expands to

  ((pSioChan)->pDrvFuncs->ioctl (pSioChan, cmd, arg))

which also breaks when that gets further expanded to

  ((pSioChan)->pDrvFuncs->(ioctl) (pSioChan, cmd, (int)(arg)))

This patch partly fixes that issue as well, but the third argument to
the pDrvFuncs->ioctl method should be void*, so the cast to (int) is
slightly annoying. Internally, we've simply patched the sioIoctl macro:

  (((pSioChan)->pDrvFuncs->ioctl) (pSioChan, cmd, arg))

From-SVN: r264056

Come up with TARGET_GET_VALID_OPTION_VALUES option hook (PR driver/83193).

2018-09-03  Martin Liska  <mliska@suse.cz>

        PR driver/83193
* common/common-target.def: Add TARGET_GET_VALID_OPTION_VALUES.
* common/common-targhooks.c (default_get_valid_option_values):
        New function.
* common/common-targhooks.h (default_get_valid_option_values):
        Likewise.
* common/config/i386/i386-common.c: Move processor_target_table
        from i386.c.
(ix86_get_valid_option_values): New function.
(TARGET_GET_VALID_OPTION_VALUES): New macro.
* config/i386/i386.c (struct ptt): Move to i386-common.c.
(PTA_*): Move all defined masks into i386-common.c.
(ix86_function_specific_restore): Use new processor_cost_table.
* config/i386/i386.h (struct ptt): Moved from i386.c.
(struct pta): Likewise.
* doc/tm.texi: Document new TARGET_GET_VALID_OPTION_VALUES.
* doc/tm.texi.in: Likewise.
* opt-suggestions.c (option_proposer::suggest_option):
        Pass prefix to build_option_suggestions.
(option_proposer::get_completions): Likewise.
(option_proposer::build_option_suggestions): Use the new target
        hook.
* opts.c (struct option_help_tuple): New struct.
(print_filtered_help): Use the new target hook.
2018-09-03  Martin Liska  <mliska@suse.cz>

        PR driver/83193
* gcc.dg/completion-4.c: New test.

From-SVN: r264052

re PR c++/84980 ([concepts] ICE with missing typename in concept)

/cp
2018-09-03  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/84980
* constraint.cc (finish_shorthand_constraint): Early return if the
constraint is erroneous.

/testsuite
2018-09-03  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/84980
* g++.dg/concepts/pr84980.C: New.

From-SVN: r264051

Make __builtin_expect effective in switch statements (PR middle-end/PR59521).

2018-09-03  Martin Liska  <mliska@suse.cz>

  PR middle-end/59521
* predict.c (set_even_probabilities): Add likely_edges
        argument and handle cases where we have precisely one
        likely edge.
(combine_predictions_for_bb): Catch also likely_edges.
(tree_predict_by_opcode): Handle gswitch statements.
* tree-cfg.h (find_case_label_for_value): New declaration.
(find_taken_edge_switch_expr): Likewise.
* tree-switch-conversion.c (switch_decision_tree::balance_case_nodes):
        Find pivot in decision tree based on probabily, not by number of
        nodes.
2018-09-03  Martin Liska  <mliska@suse.cz>

  PR middle-end/59521
* c-c++-common/pr59521-1.c: New test.
* c-c++-common/pr59521-2.c: New test.
* gcc.dg/tree-prof/pr59521-3.c: New test.

From-SVN: r264050

Daily bump.

From-SVN: r264049

io.h: Change declaration of vlist type to gfc_full_array_i4 to eliminate warning for...

2018-09-01  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

* io/io.h: Change declaration of vlist type to
gfc_full_array_i4 to eliminate warning for mismatched type.
* io/format.c ((parse_format_list): Use gfc_full_array_i4.
* io/io.h: Use gfc_full_array_i4.

From-SVN: r264043

c-common.c (braced_list_to_string): Remove eval parameter.

* c-common.c (braced_list_to_string): Remove eval parameter.
Add some more checks.  Always create zero-terminated STRING_CST.
* c-common.h (braced_list_to_string): Adjust prototype.

* c-decl.c (finish_decl): Call braced_list_to_string here ...
* c-parser.c (c_parser_declaration_or_fndef): ... instead of here.

* decl.c (eval_check_narrowing): Remove.
(check_initializer): Move call to braced_list_to_string from here ...
* typeck2.c (store_init_value): ... to here.
(digest_init_r): Remove handing of signed/unsigned char strings.

* c-c++-common/array-init.c: New test.
* g++.dg/init/string2.C: Remove xfail.

From-SVN: r264042

2018-09-02  François Dumont  <fdumont@gcc.gnu.org>

* include/debug/safe_iterator.h
(_Safe_iterator<_It, _Seq, _Cat>::_Self): New.
(_Safe_iterator<_It, _Seq, std::random_access_iterator_tag>::_Self):
New.
(_Safe_iterator<_It, _Seq, std::random_access_iterator_tag>
::_OtherSelf): New.
(_GLIBCXX_DEBUG_VERIFY_OPERANDS, _GLIBCXX_DEBUG_VERIFY_EQ_OPERANDS)
(_GLIBCXX_DEBUG_VERIFY_REL_OPERANDS)
(_GLIBCXX_DEBUG_VERIFY_DIST_OPERANDS): Define macros.
(_Safe_iterator<_It, _Seq, std::random_access_iterator_tag>
::operator+(difference_type)): Use latters, inline as friend.
(_Safe_iterator<_It, _Seq, std::random_access_iterator_tag>
::operator-(difference_type)): Likewise.
(operator==(const _Safe_iterator<>&, const _Safe_iterator<>&)):
Likewise.
(operator!=(const _Safe_iterator<>&, const _Safe_iterator<>&)):
Likewise.
(operator<(const _Safe_iterator<>&, const _Safe_iterator<>&)): Likewise.
(operator<=(const _Safe_iterator<>&, const _Safe_iterator<>&)):
Likewise.
(operator>(const _Safe_iterator<>&, const _Safe_iterator<>&)): Likewise.
(operator>=(const _Safe_iterator<>&, const _Safe_iterator<>&)):
Likewise.
(operator-(const _Safe_iterator<>&, const _Safe_iterator<>&)): Likewise.
(operator+(difference_type, const _Safe_iterator<>&)): Likewise.
(operator-(const _Safe_iterator<>&, difference_type)): Likewise.
* include/debug/safe_iterator.tcc
(_Safe_iterator<>::_M_can_advance(difference_type)): Take parameter by
copy.
* include/debug/safe_local_iterator.h
(_Safe_local_iterator<_It, _Seq>::_Self): New.
(_Safe_local_iterator<_It, _Seq>::_OtherSelf): New.
(_GLIBCXX_DEBUG_VERIFY_OPERANDS): Define macro.
(operator==(const _Safe_local_iterator<>&,
const _Safe_local_iterator<>&)): Use latter, inline as friend.
(operator!=(const _Safe_local_iterator<>&,
const _Safe_local_iterator<>&)): Likewise.
* testsuite/util/testsuite_containers.h: Include utility.
(struct forward_members_unordered<_Tp, bool>): Remove 2nd template
parameter.
(forward_members_unordered<>::forward_members_unordered(value_type&)):
Add using namespace std::rel_ops.
Add iterator_concept_checks on local_iterator and const_local_iterator.
Add asserts on comparison between const_local_iterator and
local_iterator.
(struct forward_members_unordered<_Tp, false>): Remove partial
specialization.
* testsuite/23_containers/forward_list/types/1.cc: New.
* testsuite/23_containers/list/types/1.cc: New.

From-SVN: r264039

* doc/standards.texi (Standards): Update Objective-C reference.

From-SVN: r264038

Daily bump.

From-SVN: r264037

* doc/install.texi (Prerequisites): Update link for MPC.

From-SVN: r264033

generic.texi (OpenMP): Adjust link to openmp.org.

* doc/generic.texi (OpenMP): Adjust link to openmp.org.
* doc/invoke.texi (C Dialect Options): Ditto.

From-SVN: r264032

profile_mode.xml: Update three ieeexplore.ieee.org references.

* doc/xml/manual/profile_mode.xml: Update three ieeexplore.ieee.org
references.

From-SVN: r264031

re PR tree-optimization/87074 (Unroll and jam bug: O3 result differ from O2)

Fix PR87074

PR tree-optimization/87074
* gimple-loop-jam.c (unroll_jam_possible_p): Check loop exit
PHIs for outer-loop uses.

testsuite/
* gcc.dg/pr87074.c: New test.

From-SVN: r264029

* doc/install.texi (Prerequisites): Adjust link mpfr.org.

From-SVN: r264028

Daily bump.

From-SVN: r264026

10.cc: Add dg-require-fileio.

2018-08-31  Sandra Loosemore  <sandra@codesourcery.com>

libstdc++-v3/

* testsuite/21_strings/basic_string/inserters_extractors/wchar_t/10.cc:
Add dg-require-fileio.
* testsuite/21_strings/basic_string/inserters_extractors/wchar_t/11.cc:
Likewise.
* testsuite/21_strings/basic_string/inserters_extractors/wchar_t/5.cc:
Likewise.
* testsuite/21_strings/basic_string_view/inserters/wchar_t/2.cc:
Likewise.
* testsuite/25_algorithms/copy/streambuf_iterators/wchar_t/4.cc:
Likewise.
* testsuite/25_algorithms/find/istreambuf_iterators/wchar_t/2.cc:
Likewise.
* testsuite/27_io/basic_filebuf/close/wchar_t/12790-1.cc: Likewise.
* testsuite/27_io/basic_filebuf/close/wchar_t/12790-2.cc: Likewise.
* testsuite/27_io/basic_filebuf/close/wchar_t/12790-3.cc: Likewise.
* testsuite/27_io/basic_filebuf/close/wchar_t/12790-4.cc: Likewise.
* testsuite/27_io/basic_filebuf/seekoff/wchar_t/11543.cc: Likewise.
* testsuite/27_io/basic_filebuf/seekoff/wchar_t/12790-1.cc:
Likewise.
* testsuite/27_io/basic_filebuf/seekoff/wchar_t/12790-2.cc:
Likewise.
* testsuite/27_io/basic_filebuf/seekoff/wchar_t/12790-3.cc:
Likewise.
* testsuite/27_io/basic_filebuf/seekoff/wchar_t/12790-4.cc:
Likewise.
* testsuite/27_io/basic_filebuf/seekpos/wchar_t/12790-1.cc:
Likewise.
* testsuite/27_io/basic_filebuf/seekpos/wchar_t/12790-2.cc:
Likewise.
* testsuite/27_io/basic_filebuf/seekpos/wchar_t/12790-4.cc:
Likewise.
* testsuite/27_io/basic_filebuf/underflow/wchar_t/2.cc: Likewise.
* testsuite/27_io/basic_filebuf/underflow/wchar_t/3.cc: Likewise.
* testsuite/27_io/basic_ifstream/cons/wchar_t/1.cc: Likewise.
* testsuite/27_io/basic_ifstream/open/wchar_t/1.cc: Likewise.
* testsuite/27_io/basic_istream/extractors_character/wchar_t/4.cc:
Likewise.
* testsuite/27_io/basic_istream/extractors_other/wchar_t/2.cc:
Likewise.
* testsuite/27_io/basic_istream/get/wchar_t/2.cc: Likewise.
* testsuite/27_io/basic_istream/getline/wchar_t/5.cc: Likewise.
* testsuite/27_io/basic_istream/ignore/wchar_t/2.cc: Likewise.
* testsuite/27_io/basic_istream/ignore/wchar_t/3.cc: Likewise.
* testsuite/27_io/basic_istream/seekg/wchar_t/sstream.cc: Likewise.
* testsuite/27_io/basic_istream/tellg/wchar_t/sstream.cc: Likewise.
* testsuite/27_io/basic_ofstream/cons/wchar_t/1.cc: Likewise.
* testsuite/27_io/basic_ofstream/open/wchar_t/1.cc: Likewise.
* testsuite/27_io/basic_ostream/inserters_other/wchar_t/1.cc:
Likewise.
* testsuite/27_io/objects/wchar_t/10.cc: Likewise.
* testsuite/27_io/objects/wchar_t/12048-1.cc: Likewise.
* testsuite/27_io/objects/wchar_t/12048-2.cc: Likewise.
* testsuite/27_io/objects/wchar_t/12048-3.cc: Likewise.
* testsuite/27_io/objects/wchar_t/12048-4.cc: Likewise.
* testsuite/27_io/objects/wchar_t/12048-5.cc: Likewise.
* testsuite/experimental/string_view/inserters/wchar_t/2.cc:
Likewise.
* testsuite/ext/stdio_sync_filebuf/wchar_t/1.cc: Likewise.

From-SVN: r264022

re PR tree-optimization/87168 (ICE on valid code at -Os and above on x86_64-linux-gnu: verify_ssa failed)

2018-08-31  Richard Biener  <rguenther@suse.de>

PR tree-optimization/87168
* tree-ssa-sccvn.c (SSA_VAL): Add visited output parameter.
(rpo_elim::eliminate_avail): When OP was not visited it must
be available.

* gcc.dg/torture/pr87168.c: New testcase.

From-SVN: r264021

tree-vrp: add "const" qualifier to various value_range pointers

gcc/ChangeLog:
* tree-vrp.c (copy_value_range): Convert param "from" from
"value_range *" to "const value_range *".
(range_is_null): Likewise for param "vr".
(range_int_cst_p): Likewise.
(range_int_cst_singleton_p): Likewise.
(symbolic_range_p): Likewise.
(value_ranges_intersect_p): Likewise for both params.
(value_range_nonnegative_p): Likewise for param "vr".
(value_range_constant_singleton): Likewise.
(vrp_set_zero_nonzero_bits): Likewise for param "ar".
(extract_range_into_wide_ints): Likewise for param "vr".
(extract_range_from_multiplicative_op): Likewise for params "vr0"
and "vr1".
(vrp_can_optimize_bit_op): Likewise.
(extract_range_from_binary_expr_1): Likewise for params "vr0_" and
"vr1_".
(extract_range_from_unary_expr): Likewise.
(debug_value_range): Likewise for param "vr".
(value_range::dump): Add "const" qualifier.
(vrp_prop::check_array_ref): Convert local "vr" from
"value_range *" to "const value_range *".
(vrp_prop::check_mem_ref): Likewise.
(vrp_prop::visit_stmt): Likewise for local "old_vr".
(vrp_intersect_ranges_1): Likewise for param "vr_1".
(vrp_intersect_ranges): Likewise.
(simplify_stmt_for_jump_threading): Likewise for local "vr".
(vrp_prop::vrp_finalize): Likewise.
* tree-vrp.h (value_range::dump): Add "const" qualifier.
(vrp_intersect_ranges): Add "const" qualifier to params as above.
(extract_range_from_unary_expr): Likewise.
(value_range_constant_singleton): Likewise.
(symbolic_range_p): Likewise.
(copy_value_range): Likewise.
(extract_range_from_binary_expr_1): Likewise.
(range_int_cst_p): Likewise.
(vrp_set_zero_nonzero_bits): Likewise.
(range_int_cst_singleton_p): Likewise.

From-SVN: r264020

[AArch64] Implement new intrinsics vabsd_s64 and vnegd_s64.

gcc/
2018-08-31  Vlad Lazar  <vlad.lazar@arm.com>

* config/aarch64/arm_neon.h (vabsd_s64): New.
(vnegd_s64): Likewise.

gcc/testsuite/
2018-08-31  Vlad Lazar  <vlad.lazar@arm.com>

* gcc.target/aarch64/scalar_intrinsics.c (test_vnegd_s64): New.
* gcc.target/aarch64/vneg_s.c (RUN_TEST_SCALAR): New.
(test_vnegd_s64): Likewise.
* gcc.target/aarch64/vnegd_64.c: New.
* gcc.target/aarch64/vabsd_64.c: New.
* gcc.tartget/aarch64/vabs_intrinsic_3.c: New

From-SVN: r264019

[PR c++/87155] Anonymous namespace and

https://gcc.gnu.org/ml/gcc-patches/2018-08/msg02031.html
PR c++/87155
PR c++/84707
cp/
* name-lookup.c (name_lookup::search_namespace): Don't look at
inlines when searching for NULL names.
testsuite/
* g++.dg/cpp0x/pr87155.C: New.
* g++.dg/cpp0x/inline-ns10.C: Adjust.

From-SVN: r264016

[PATCH] Fix thinko in estimate_local_effects in IPA-CP

2018-08-31  Martin Jambor  <mjambor@suse.cz>

* ipa-cp.c (estimate_local_effects): Replace wrong MAX with MIN.

From-SVN: r264015

IPA ICF: make type cache a static field sem_item.

2018-08-31  Martin Liska  <mliska@suse.cz>

* ipa-icf.c (sem_item::add_type): Use
sem_item::m_type_hash_cache.
* ipa-icf.h: Move the cache from sem_item_optimizer
to sem_item.

From-SVN: r264014

[C++ PATCH] Remove K&R declaration hack.

https://gcc.gnu.org/ml/gcc-patches/2018-08/msg01885.html
gcc/
* doc/extend.texi (Backwards Compatibility): Remove implicit
extern C leeway of () being (...).
gcc/cp/
* decl.c (decls_match): Remove SYSTEM_IMPLICIT_EXTERN_C matching
of return types and parms.
* parser.c (cp_parser_parameter_declaration_clause): Likewise,
'()' always means '(void)'.

From-SVN: r264013

[ipa-inline][obvious] Fix typos in comment

* ipa-inline.c (can_inline_edge_by_limits_p): Fix typos in comment.

From-SVN: r264012

rs6000: Make lround<mode>di2 depend on TARGET_FPRND (PR86684)

TARGET_FPRND should be on for everything ISA 2.04 and later, and
TARGET_VSX implies ISA 2.06 or later; but it is possible to disable
TARGET_FPRND (separately via -mno-fprnd, but also implicitly)
currently, and then things fall down.  This patch makes things not
fall down.

PR target/86684
PR target/87149
* config/rs6000/rs6000.md (lround<mode>di2): Gate on TARGET_FPRND.

From-SVN: r264011

re PR middle-end/87138 (wrong code with TI multiplication with -O -march=k8 -fno-tree-fre -mavx512bw)

PR middle-end/87138
* expmed.c (expand_mult_const): Use immed_wide_int_const instead of
gen_int_mode.  Formatting fixes.

* gcc.target/i386/avx512bw-pr87138.c: New test.

From-SVN: r264009

re PR fortran/86328 (Runtime segfault reading an allocatable class(*) object in allocate statements)

2018-08-31  Paul Thomas  <pault@gcc.gnu.org>

PR fortran/86328
PR fortran/86760
* trans-array.c (gfc_conv_scalarized_array_ref): Do not fix
info->descriptor but pass it directly to gfc_build_array_ref.
(gfc_conv_array_ref): Likewise for se->expr.
* trans.c (gfc_build_array_ref): If 'decl' is a COMPONENT_REF
obtain the span field directly from it.

2018-08-31  Paul Thomas  <pault@gcc.gnu.org>

PR fortran/86328
PR fortran/86760
* gfortran.dg/pr86328.f90 : New test.
in comment 12 of the PR.
* gfortran.dg/pr86760.f90 : New test.

From-SVN: r264008

Fix PR testsuite/86519 reference.

From-SVN: r264007

Daily bump.

From-SVN: r264006

noexcept30.C: Make dependence on -fdelete-null-pointer-checks explicit.

2018-08-30  Sandra Loosemore  <sandra@codesourcery.com>

gcc/testsuite/
* g++.dg/cpp0x/noexcept30.C: Make dependence on
-fdelete-null-pointer-checks explicit.
* g++.dg/cpp1y/constexpr-82218.C: Likewise.
* g++.dg/expr/pmf-3.C: Likewise.
* g++.dg/ext/attr-returns-nonnull.C: Likewise.
* g++.dg/tree-ssa/lifetime-dse1.C: Likewise.
* g++.dg/tree-ssa/pr61034.C: Likewise.
* gcc.dg/addr_equal-1.c: Likewise.
* gcc.dg/ipa/pr85734.c: Likewise.
* gcc.dg/ipa/propmalloc-1.c: Likewise.
* gcc.dg/ipa/propmalloc-2.c: Likewise.
* gcc.dg/ipa/propmalloc-3.c: Likewise.
* gcc.dg/tree-ssa/pr78154.c: Likewise.
* gcc.dg/tree-ssa/pr83648.c: Likewise.

libstdc++-v3/
* testsuite/experimental/propagate_const/observers/1.cc: Make
dependence on -fdelete-null-pointer-checks explicit.

From-SVN: r264001

PR testsuite/87158 - FAIL gcc.c-torture/execute/memchr-1.c on big endian targets

gcc/testsuite/ChangeLog:
* gcc.c-torture/execute/memchr-1.c: Correct big-endian expectations.

From-SVN: r264000

target.def (custom_function_descriptors): Improve documentation.

2018-08-30  Sandra Loosemore  <sandra@codesourcery.com>

gcc/
* target.def (custom_function_descriptors): Improve documentation.
* doc/tm.texi.in (Trampolines): Expand discussion of function
descriptors and move TARGET_CUSTOM_FUNCTION_DESCRIPTORS to the
beginning of the section.
* doc/tm.texi: Regenerated.

From-SVN: r263999

cfg.h (class auto_edge_flag): Spell out the template-id of the base class in the initializer list.

gcc:

2018-08-30  Jose E. Marchesi  <jose.marchesi@oracle.com>

* cfg.h (class auto_edge_flag): Spell out the template-id of the
base class in the initializer list.  This is a workaround for
building with older GCC.
(class auto_bb_flag): Likewise.

From-SVN: r263997

altivec.md (altivec_eq<mode>): Remove star.

2018-08-30  Aaron Sawdey  <acsawdey@linux.ibm.com>

* config/rs6000/altivec.md (altivec_eq<mode>): Remove star.
(altivec_vcmpequ<VI_char>_p): Remove star.
* config/rs6000/rs6000-string.c (do_load_for_compare): Support
vector load modes.
(expand_strncmp_vec_sequence): New function.
(emit_final_str_compare_vec): New function.
(expand_strn_compare): Add support for vector strncmp.
* config/rs6000/rs6000.opt (-mstring-compare-inline-limit): Change
length specification to bytes.
* config/rs6000/vsx.md (vsx_ld_elemrev_v16qi_internal): Remove star.
(vcmpnezb_p): New pattern.
* doc/invoke.texi (RS/6000 and PowerPC Options): Update documentation
for option -mstring-compare-inline-limit.

From-SVN: r263991

x86: Move AESNI generation to Skylake and Goldmont

The instruction set first appeared with Westmere, but not all processors
in that and the next few generations have the instructions. According to
Wikipedia[1], the first generation in which all SKUs have AES
instructions are Skylake and Goldmont. I can't find any Skylake,
Kabylake, Kabylake-R or Cannon Lake currently listed at
https://ark.intel.com that says "Intel® AES New Instructions" "No".

[1] https://en.wikipedia.org/wiki/AES_instruction_set

2018-08-30  Thiago Macieira  <thiago.macieira@intel.com>

* config/i386/i386.c (PTA_WESTMERE): Remove PTA_AES.
(PTA_SKYLAKE): Add PTA_AES.
(PTA_GOLDMONT): Likewise.

From-SVN: r263989

re PR lto/86517 (relocation R_X86_64_32 against `.rodata.str1.1' can not be used when making a shared object with LTO)

PR lto/86517
* lto-opts.c (lto_write_options): Always stream PIC/PIE mode.
* lto-wrapper.c (merge_and_complain): Fix merging of PIC/PIE.

From-SVN: r263988

[libcpp] fix some line map comments

https://gcc.gnu.org/ml/gcc-patches/2018-08/msg01978.html
* include/line-map.h (enum lc_reason): Comment each member
separately.
(struct line_maps): Fix reallocator comment.

From-SVN: r263987

Avoid undefined shifts in ceil2 operations

For values where the result cannot be represented the shift width would
be equal to the width of the type, which is undefined. Perform two
well-defined shifts instead of one possible undefined shift.

* include/bits/hashtable_policy.h (__clp2): Fix calculation for LLP64
targets where sizeof(size_t) > sizeof(long). Avoid undefined shifts
of the number of bits in the type.
* include/std/bit (__ceil2): Avoid undefined shifts.
* testsuite/26_numerics/bit/bit.pow.two/ceil2.cc: Test values with
the most signifiant bit set.

From-SVN: r263986

lto-streamer-out.c (DFS::DFS_write_tree_body): Do not follow TYPE_STUB_DECL.

* lto-streamer-out.c (DFS::DFS_write_tree_body): Do not follow
TYPE_STUB_DECL.
(hash_tree): Do not visit TYPE_STUB_DECL.
* tree-streamer-out.c (write_ts_type_common_tree_pointers): Do not
stream TYPE_STUB_DECL.
* tree-streamer-in.c (lto_input_ts_type_common_tree_pointers): Likewise.
* ipa-utils.h (type_with_linkage_p): Do not rely on TYPE_STUB_DECL
after free_lang_data.
(type_in_anonymous_namespace_p): Likewise.

From-SVN: r263985

Move strcmpopt_6.c from gcc.dg to gcc.target/aarch64 and gcc.target/i386.

From-SVN: r263983

gimplefe: expose MULT_HIGHPART_EXPR

* gimple-parser.c (c_parser_gimple_binary_expression): Accept infix
"__MULT_HIGHPART" for MULT_HIGHPART_EXPR.

From-SVN: r263982

sreal.h (SREAL_PART_BITS): Change to 31; remove seemingly unnecessary comment that it has to be even number.

* sreal.h (SREAL_PART_BITS): Change to 31; remove seemingly unnecessary
comment that it has to be even number.
(class sreal): Change m_sig type to int32_t.
* sreal.c (sreal::dump, sreal::to_int, opreator+, operator-): Use
int64_t for temporary calculations.
(sreal_verify_basics): Drop one bit from minimum and maximum.

From-SVN: r263981

re PR tree-optimization/87147 (GCC miscompiles at -O3 on valid code)

2018-08-30  Richard Biener  <rguenther@suse.de>

PR tree-optimization/87147
* tree-ssa-sccvn.c (SSA_VISITED): New function.
(visit_phi): When the degenerate result is from the backedge and
we didn't visit its definition yet drop to VARYING.
(do_rpo_vn): Properly mark blocks with incoming backedges as executable.

* gcc.dg/torture/pr87147.c: New testcase.

From-SVN: r263980

lto-streamer-out.c (DFS::DFS_write_tree_body): Do not walk DECL_VINDEX.

* lto-streamer-out.c (DFS::DFS_write_tree_body): Do not walk
DECL_VINDEX.
(hash_tree): Likewise.

From-SVN: r263979

tree.c (find_decls_types_r): Walk also TYPE_NEXT_PTR_TO and TYPE_NEXT_REF_TO.

* tree.c (find_decls_types_r): Walk also TYPE_NEXT_PTR_TO
and TYPE_NEXT_REF_TO.

From-SVN: r263978

Fix undefined references seen with mingw-w64

* config/abi/pre/gnu.ver: Add missing exports for mingw.

From-SVN: r263977

Fix __gnu_cxx::_Pointer_adapter for long long arithmetic

* include/ext/pointer.h (_Pointer_adapter): Define operators for
pointer arithmetic using long long offsets.
* testsuite/ext/ext_pointer/1.cc: Test pointer arithmetic using
long long values.

From-SVN: r263976

Limit movmem copies to TImode on AArch64

On AArch64 we have integer modes larger than TImode, and while we can generate
moves for these they're not as efficient.

So instead make sure we limit the maximum we can copy to TImode.  This means
copying a 16 byte struct will issue 1 TImode copy, which will be done using a
single STP as we expect but an CImode sized copy won't issue CImode operations.

I am also moving the residual code inside the if since smallest_mode_for_int may
trap if the mode doesn't exist.  And the only time we know the mode to exist for
sure is when the condition of the if is true.  This also saves repeated calls to
the iterator.

gcc/
2018-08-30  Tamar Christina  <tamar.christina@arm.com>

* config/aarch64/aarch64.c (aarch64_expand_movmem): Set TImode max.

gcc/testsuite/
2018-08-30  Tamar Christina  <tamar.christina@arm.com>

  * gcc.target/aarch64/large_struct_copy_2.c: New.

From-SVN: r263974

Enable underflow check in canonicalize_comparison. (PR86995)

gcc/
2018-08-30  Vlad Lazar  <vlad.lazar@arm.com>

PR middle-end/86995
* expmed.c (canonicalize_comparison): Use wi::sub instead of wi::add
if to_add is negative.

From-SVN: r263973

Daily bump.

From-SVN: r263972

re PR middle-end/87053 (wrong code with c_strlen)

gcc:
2018-08-22  Bernd Edlinger  <bernd.edlinger@hotmail.de>

PR middle-end/87053
* builtins.c (c_strlen): Improve range checks.

testsuite:
2018-08-22  Bernd Edlinger  <bernd.edlinger@hotmail.de>

PR middle-end/87053
* gcc.c-torture/execute/pr87053.c: New test.

From-SVN: r263968

re PR sanitizer/87095 (UndefinedBehaviorSanitizer vptr false positive with virtual inheritance only with -fno-sanitize-recover)

PR c++/87095
* decl.c (begin_destructor_body): If current_class_type has
virtual bases and the primary base is nearly empty virtual base,
voidify clearing of vptr and make it conditional on in-charge
argument.

* g++.dg/ubsan/vptr-13.C: New test.

From-SVN: r263967

re PR c++/85265 ([concepts] ICE with missing identifier)

/cp
2018-08-29  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/85265
* parser.c (cp_parser_introduction_list): If cp_parser_identifier
returns error_mark_node early exit the loop.
(cp_parser_template_introduction): Improve error-recovery, remove
error call about empty introduction-list.

/testsuite
2018-08-29  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/85265
* g++.dg/concepts/pr85265.C: New.

From-SVN: r263966

re PR middle-end/86714 (tree-ssa-forwprop.c confused by too long initializer)

PR tree-optimization/86714
PR tree-optimization/86711
* builtins.c (c_strlen): Add arguments to call to string_constant.
* expr.c (string_constant): Add argument.  Detect missing nul
terminator and outermost declaration it's missing in.
* expr.h (string_constant): Add argument.
* fold-const.c (read_from_constant_string): Add arguments to call to
string_constant.
(c_getstr): Likewise.
* tree-ssa-forwprop.c (simplify_builtin_call): Likewise.
to string_constant.
* tree-ssa-strlen.c (get_stridx): Likewise.

PR tree-optimization/86714
PR tree-optimization/86711
* gcc.c-torture/execute/memchr-1.c: New test.
* gcc.c-torture/execute/pr86714.c: New test.
* gcc.c-torture/execute/widechar-3.c: New test.
* gcc.dg/strlenopt-58.c: New test.

Co-Authored-By: Bernd Edlinger <bernd.edlinger@hotmail.de>
Co-Authored-By: Jeff Law <law@redhat.com>
From-SVN: r263963

tree-streamer-in.c (lto_input_ts_function_decl_tree_pointers): Do not stream DECL_VINDEX.

* tree-streamer-in.c (lto_input_ts_function_decl_tree_pointers):
Do not stream DECL_VINDEX.
* tree-streamer-out.c (write_ts_function_decl_tree_pointers): Likewise.
* tree.c (free_lang_data_in_decl): Clear DECL_VINDEX.
(decl_function_context): Use DECL_VIRTUAL_P rather than DECL_VINDEX.

From-SVN: r263962

tree-ssa-sccvn.c (vuse_ssa_val): Return NULL for unvisited virtual operands that are not default defs to honor...

2018-08-29  Richard Biener  <rguenther@suse.de>

* tree-ssa-sccvn.c (vuse_ssa_val): Return NULL for unvisited
virtual operands that are not default defs to honor region
boundaries.
(rpo_vn_valueize): Remove ineffective code here.

From-SVN: r263960

re PR tree-optimization/87132 (Gcc miscompiles at -O2 on valid code)

2018-08-29  Richard Biener  <rguenther@suse.de>

PR tree-optimization/87132
* tree-ssa-alias.c (get_continuation_for_phi): Do not translate
when skipping defs reachable over backedges.

* gcc.dg/torture/pr87132.c: New testcase.

From-SVN: r263959

tree-core.h: Document use of deprecated_flag in SSA_NAME.

2018-08-29  Richard Biener  <rguenther@suse.de>

* tree-core.h: Document use of deprecated_flag in SSA_NAME.
* tree.h (SSA_NAME_POINTS_TO_READONLY_MEMORY): Define.
* tree-into-ssa.c (pass_build_ssa::execute): Initialize
function parameters SSA_NAME_POINTS_TO_READONLY_MEMORY from fnspec.
* tree-ssa-sccvn.c (const_parms, init_const_parms): Remove.
(vn_reference_lookup_3): Remove use of const_parms.
(free_rpo_vn): Do not free const_parms.
(do_rpo_vn): Do not call init_const_parms.
* tree-ssa-alias.c (refs_may_alias_p_1): Honor
SSA_NAME_POINTS_TO_READONLY_MEMORY.
(call_may_clobber_ref_p_1): Likewise.

From-SVN: r263958

C++: underline param in print_conversion_rejection (more PR c++/85110)

Consider this bogus code (from g++.dg/diagnostic/param-type-mismatch-2.C):

struct s4 { static int member_1 (int one, const char **two, float three); };

int test_4 (int first, const char *second, float third)
{
  return s4::member_1 (first, second, third);
}

Before this patch, g++ emits:

demo.cc: In function 'int test_4(int, const char*, float)':
demo.cc:5:44: error: no matching function for call to 's4::member_1(int&, const char*&, float&)'
5 |   return s4::member_1 (first, second, third);
  |                                            ^
demo.cc:1:24: note: candidate: 'static int s4::member_1(int, const char**, float)'
1 | struct s4 { static int member_1 (int one, const char **two, float three); };
  |                        ^~~~~~~~
demo.cc:1:24: note:   no known conversion for argument 2 from 'const char*' to 'const char**'

With this patch, it highlights the pertinent parameter in the
"no known conversion" note:

demo.cc: In function 'int test_4(int, const char*, float)':
demo.cc:5:44: error: no matching function for call to 's4::member_1(int&, const char*&, float&)'
5 |   return s4::member_1 (first, second, third);
  |                                            ^
demo.cc:1:24: note: candidate: 'static int s4::member_1(int, const char**, float)'
1 | struct s4 { static int member_1 (int one, const char **two, float three); };
  |                        ^~~~~~~~
demo.cc:1:56: note:   no known conversion for argument 2 from 'const char*' to 'const char**'
1 | struct s4 { static int member_1 (int one, const char **two, float three); };
  |                                           ~~~~~~~~~~~~~^~~

gcc/cp/ChangeLog:
PR c++/85110
* call.c (print_conversion_rejection): Add "fn" param and use it
for "no known conversion" messages to underline the pertinent
param.
(print_z_candidate): Supply "fn" to the new param above.

gcc/testsuite/ChangeLog:
PR c++/85110
* g++.dg/diagnostic/param-type-mismatch-2.C: Update expected
output to reflect underlining of pertinent parameter in decl
for "no known conversion" messages.

From-SVN: r263957

doc: document -ftree-scev-cprop

PR other/86726
* invoke.texi (Optimization Options): List -ftree-scev-cprop.
(-O): Ditto.
(-ftree-scev-cprop): Document.

From-SVN: r263955

re PR c++/87122 (ICE in tsubst_decomp_names)

PR c++/87122
* pt.c (tsubst_expr) <case RANGE_FOR_STMT>: If
processing_template_decl and decl is structured binding decl, call
cp_finish_decomp.

* g++.dg/cpp1z/decomp47.C: New test.

From-SVN: r263953

sreal.h (normalize, [...]): Add new_sig/new_exp parameters.

* sreal.h (normalize, normalize_up, normalize_down): Add new_sig/new_exp
parameters.
(sreal constructor): Update.
* sreal.c (sreal:operator+, sreal:operator-, sreal:operator*,
sreal:operator/): Update.

From-SVN: r263952

Fix thinko in lto.c (PR bootstrap/87130).

2018-08-29  Martin Liska  <mliska@suse.cz>

PR bootstrap/87130
* lto.c (read_cgraph_and_symbols): Fix thinko, revert
to behavior before r263887.

From-SVN: r263950

MAINTAINERS (write after approval): Add myself.

2018-08-29  Vlad Lazar  <vlad.lazar@arm.com>

* MAINTAINERS (write after approval): Add myself.

From-SVN: r263949

PR libstdc++/31413 fix test failure on Debian systems

Debian uses a different D_FMT string for the zh_TW.UTF-8 locale, which
caused this test to fail. Try to detect the Debian format and adjust
the input being tested.

PR libstdc++/31413
* testsuite/22_locale/time_get/get_date/wchar_t/4.cc: Check D_FMT
string for alternative format.

From-SVN: r263948

Strenghten assumption about gswitch statements.

2018-08-29  Martin Liska  <mliska@suse.cz>

* tree-switch-conversion.c (switch_conversion::expand):
Strenghten assumption about gswitch statements.

From-SVN: r263947

[AARCH64] Use stdint integers in vect_su_add_sub.c

2018-08-29  Matthew Malcomson  <matthew.malcomson@arm.com>

* gcc.target/aarch64/simd/vect_su_add_sub.c: Use 32 and 64-bit types
where appropriate.

From-SVN: r263946

re PR tree-optimization/87117 (ICE in eliminate_dom_walker::eliminate_cleanup(bool) at gcc/gcc/tree-ssa-sccvn.c:5431 since r263875)

2018-08-29  Richard Biener  <rguenther@suse.de>

PR tree-optimization/87117
* tree-ssa-sccvn.c (eliminate_dom_walker::eliminate_stmt): Only
re-value-number released SSA VDEFs.

* gfortran.dg/pr87117.f90: New testcase.

From-SVN: r263945

re PR tree-optimization/87126 (ICE on valid code at -Os and above on x86_64-linux-gnu: in vn_reference_insert, at tree-ssa-sccvn.c:2698)

2018-08-29  Richard Biener  <rguenther@suse.de>

PR tree-optimization/87126
* tree-ssa-sccvn.c (vn_reference_insert): Remove assert.

* gcc.dg/tree-ssa/pr87126.c: New testcase.

From-SVN: r263944

Rewrite pic.md to improve medany and pic code size.

gcc/
* config/riscv/pic.md: Rewrite.
* config/riscv/riscv.c (riscv_address_insns): Return cost of 3 for
invalid address.
* config/riscv/riscv.md (ZERO_EXTEND_LOAD): Delete.
(SOFTF, default_load, softload, softstore): New.

From-SVN: r263943

remove utf-8 from comment

From-SVN: r263942

compiler, runtime: remove hmap field from maptypes

    This is the gofrontend version of https://golang.org/cl/91796.

    This is part of that CL, just the compiler change and required runtime
    changes, in preparation for updating libgo to 1.11.

    Relevant part of original CL description:

        The hmap field in the maptype is only used by the runtime to check the sizes of
        the hmap structure created by the compiler and runtime agree.

        Comments are already present about the hmap structure definitions in the
        compiler and runtime needing to be in sync.

    Reviewed-on: https://go-review.googlesource.com/130976

From-SVN: r263941

Daily bump.

From-SVN: r263940

* fold-const.c (fold_binary_loc): Remove recently added assert.

From-SVN: r263936

genpreds.c (write_predicate_subfunction): Also add ATTRIBUTE_UNUSED to OP parmeter of generated function.

        * genpreds.c (write_predicate_subfunction): Also add ATTRIBUTE_UNUSED
        to OP parmeter of generated function.

From-SVN: r263934

re PR middle-end/87009 (Can't find XOR pattern applying De Morgan sequentially)

PR tree-optimization/87009
* match.pd: Add boolean optimizations.

PR tree-optimization/87009
* gcc.dg/pr87009.c: New test.

From-SVN: r263931

re PR middle-end/86631 (missing -Walloc-size-larger-than on ILP32 hosts)

gcc/testsuite/ChangeLog:

PR middle-end/86631
* g++.dg/Walloca1.C: Adjust.

From-SVN: r263930

PR middle-end/86631 - missing -Walloc-size-larger-than on ILP32 hosts

gcc/ChangeLog:

PR middle-end/86631
* calls.c (alloc_max_size): Treat HOST_WIDE_INT special.
* gimple-ssa-warn-alloca.c (adjusted_warn_limit): New function.
(pass_walloca::gate): Use it.
(alloca_call_type): Same.
(pass_walloca::execute): Same.
* stor-layout.c (layout_decl): Treat HOST_WIDE_INT special.

gcc/testsuite/ChangeLog:

PR middle-end/86631
* g++.dg/Walloca1.C: Adjust.

From-SVN: r263928

PR libstdc++/87116 fix path::lexically_normal() handling of dot-dot

Previously the logic that turned "a/b/c/../.." into "a/" failed to
preserve an empty path at the end of the iteration sequence, as required
by the trailing slash. That meant the result didn't meet the class
invariants, and that "a/b/c/d/../../.." would remove four components
instead of the three that "../../.." should remove.

PR libstdc++/87116
* src/filesystem/std-path.cc (path::lexically_normal): When handling
a dot-dot filename, preserve an empty final component in the iteration
sequence.
[_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Use preferred-separator for
root-directory.
* testsuite/27_io/filesystem/path/generation/normal.cc: Add new tests
for more than two adjacent dot-dot filenames.
[_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Replace slashes with
preferred-separator in expected normalized strings.

From-SVN: r263922

re PR c++/86546 (ICE on invalid: tree_class_check_failed())

/cp
2018-08-28  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/86546
* decl.c (finish_case_label): If the type is erroneous early
return error_mark_node.

/testsuite
2018-08-28  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/86546
* g++.dg/other/switch4.C: New.

From-SVN: r263921

Fix version check for ATTRIBUTE_GCC_DUMP_PRINTF

gcc/ChangeLog:
* dumpfile.h (ATTRIBUTE_GCC_DUMP_PRINTF): Change version check on
GCC_VERSION for usage of "__gcc_dump_printf__" format from
>= 3005 to >= 9000.

From-SVN: r263920

re PR tree-optimization/87124 (ICE have integer_cst in SSA_VAL, at tree-ssa-sccvn.c:462 while building 541.leela_r from SPEC2017)

2018-08-28  Richard Biener  <rguenther@suse.de>

PR tree-optimization/87124
* tree-ssa-sccvn.c (vn_lookup_simplify_result): Guard against
constants before looking up avail.

* g++.dg/torture/pr87124.C: New testcase.

From-SVN: r263918

re PR fortran/80477 ([OOP] Polymorphic function result generates memory leak)

2017-08-28  Paul Thomas  <pault@gcc.gnu.org>

PR fortran/80477
* trans-expr.c (gfc_conv_procedure_call): Allocatable class
scalar results being passed to a derived type formal argument
are finalized if possible. Otherwise, rely on existing code for
deallocation. Make the deallocation of allocatable result
components conditional on finalization not taking place. Make
the freeing of data components after finalization conditional
on the data being NULL.
(gfc_trans_arrayfunc_assign): Change the gcc_assert to a
condition to return NULL_TREE.
(gfc_trans_assignment_1): If the assignment is class to class
and the rhs expression must be finalized but the assignment
is not marked as a polymorphic assignment, use the vptr copy
function instead of gfc_trans_scalar_assign.

PR fortran/86481
* trans-expr.c (gfc_conv_expr_reference): Do not add the post
block to the pre block if the expression is to be finalized.
* trans-stmt.c (gfc_trans_allocate): If the expr3 must be
finalized, load the post block into a finalization block and
add it right at the end of the allocation block.

2017-08-28  Paul Thomas  <pault@gcc.gnu.org>

PR fortran/80477
* gfortran.dg/class_result_7.f90: New test.
* gfortran.dg/class_result_8.f90: New test.
* gfortran.dg/class_result_9.f90: New test.

PR fortran/86481
* gfortran.dg/allocate_with_source_25.f90: New test.

From-SVN: r263916

re PR middle-end/87099 (internal compiler error: segmentation fault)

PR middle-end/87099
* calls.c (maybe_warn_nonstring_arg): Punt early if
warn_stringop_overflow is zero.  Don't call get_range_strlen
on 3rd argument, keep iterating until lenrng[1] is INTEGER_CST.
Swap comparison operands to have constants on rhs.  Only use
lenrng[1] if non-NULL and INTEGER_CST.  Don't uselessly
increment lenrng[0].

* gcc.dg/pr87099.c: New test.

From-SVN: r263915

Fix unguarded use of tree_to_shwi in tree-ssa-sccvn.c

Fixes many testsuite failures for SVE.

2018-08-28  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
* tree-ssa-sccvn.c (fully_constant_vn_reference_p): Fix unguarded
use of tree_to_shwi.  Remove duplicated test for the size being
a whole number of bytes.

From-SVN: r263914

Add target selectors to slp-37.c (PR87078)

This test was failing for Power 7 due to the lack of hw support
for unaligned accesses.

2018-08-28  Richard Sandiford  <richard.sandiford@arm.com>

gcc/testsuite/
PR testsuite/87078
* gcc.dg/vect/slp-37.c: Restrict scan tests to vect_hw_misalign.

From-SVN: r263913

re PR tree-optimization/87117 (ICE in eliminate_dom_walker::eliminate_cleanup(bool) at gcc/gcc/tree-ssa-sccvn.c:5431 since r263875)

2018-08-28  Richard Biener  <rguenther@suse.de>

PR tree-optimization/87117
* tree-ssa-sccvn.c (eliminate_dom_walker::eliminate_cleanup):
Handle removed stmt without LHS (GIMPLE_NOP).

From-SVN: r263912