re PR libfortran/79956 (many new -Wmaybe-uninitialized warnings with bootstrap-O3)

2017-03-17  Thomas Koenig  <tkoenig@gcc.gnu.org>

PR libfortran/79956
* m4/reshape.m4 (reshape_'rtype_ccode`):  Correct use
of GFC_ASSERT.
* generated/reshape_c10.c: Regenerated.
* generated/reshape_c16.c: Regenerated.
* generated/reshape_c4.c: Regenerated.
* generated/reshape_c8.c: Regenerated.
* generated/reshape_i16.c: Regenerated.
* generated/reshape_i4.c: Regenerated.
* generated/reshape_i8.c: Regenerated.
* generated/reshape_r10.c: Regenerated.
* generated/reshape_r16.c: Regenerated.
* generated/reshape_r4.c: Regenerated.
* generated/reshape_r8.c: Regenerated.

From-SVN: r246248

Fix alignment bugs in std::codecvt_utf16

* src/c++11/codecvt.cc (range): Add non-type template parameter and
define oerloaded operators for reading and writing code units.
(range<Elem, false>): Define partial specialization for accessing
wide characters in potentially unaligned byte ranges.
(ucs2_span(const char16_t*, const char16_t*, ...))
(ucs4_span(const char16_t*, const char16_t*, ...)): Change parameters
to range<const char16_t, false> in order to avoid unaligned reads.
(__codecvt_utf16_base<char16_t>::do_out)
(__codecvt_utf16_base<char32_t>::do_out)
(__codecvt_utf16_base<wchar_t>::do_out): Use range specialization for
unaligned data to avoid unaligned writes.
(__codecvt_utf16_base<char16_t>::do_in)
(__codecvt_utf16_base<char32_t>::do_in)
(__codecvt_utf16_base<wchar_t>::do_in): Likewise for writes. Return
error if there are unprocessable trailing bytes.
(__codecvt_utf16_base<char16_t>::do_length)
(__codecvt_utf16_base<char32_t>::do_length)
(__codecvt_utf16_base<wchar_t>::do_length): Pass arguments of type
range<const char16_t, false> to span functions.
* testsuite/22_locale/codecvt/codecvt_utf16/misaligned.cc: New test.

From-SVN: r246245

PR c++/78345 - ICE initializing array from lambda.

* init.c (build_aggr_init): Check array initializer.
(build_vec_init): Check the type of a CONSTRUCTOR.

From-SVN: r246244

RISC-V documentation cleanups

A recent mailing list post about install.texi cleanup suggested I take a
look at ours, and there were a few problems:

 * No table of contents entries
 * Not alphabetically ordered
 * Missing a note about requiring binutils-2.28

gcc/ChangeLog:

2017-03-17  Palmer Dabbelt  <palmer@dabbelt.com

        * doc/install.texi (Specific) <riscv32-*-elf>: Add riscv32-*-elf,
        riscv32-*-linux, riscv64-*-elf, riscv64-*-linux to the table of
        contents.
        <riscv64-*-elf>: Re-arrange section
        <riscv32-*-elf>: Add a note about requiring binutils 2.28.
        <riscv32-*-linux>: Likewise.
        <riscv64-*-elf>: Likewise
        <riscv64-*-linux>: Likewise.

From-SVN: r246243

PR c++/80073 - C++17 ICE with virtual base.

* decl.c (xref_basetypes): Also check for indirect vbases.

From-SVN: r246242

re PR fortran/79841 (Inconsistent diagnostics in fortran/openmp.c, function check_symbol_not_pointer)

2017-03-17  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

PR fortran/79841
* openmp.c (check_symbol_not_pointer): Adjust diagnostics.

From-SVN: r246241

[aarch64] Fix typo in aarch64.opt (dummping -> dumping).

PR target/80052
* aarch64.opt(verbose-cost-dump): Fix typo.

From-SVN: r246229

re PR target/79951 (ICE in extract_insn, at recog.c:2311 on ppc64le with -mno-cmpb)

PR target/79951
* config/rs6000/rs6000.md (copysign<mode>3_fcpsgn): Test
for VECTOR_UNIT_VSX_P (<MODE>mode) too.
* gcc.target/powerpc/pr79951.c: New.

From-SVN: r246228

reload.c (find_reloads): When reloading a nonoffsettable address...

* reload.c (find_reloads): When reloading a nonoffsettable address,
use RELOAD_OTHER for it and its address reloads.

From-SVN: r246227

re PR rtl-optimization/79910 (wrong code with -O -fweb)

PR rtl-optimization/79910
* combine.c (record_used_regs): New static function.
(try_combine): Handle situations where there is an additional
instruction between I2 and I3 which needs to have a LOG_LINK
updated.

PR rtl-optimization/79910
* gcc.dg/torture/pr79910.c: New test.

From-SVN: r246226

re PR tree-optimization/71437 (Performance regression after r235817)

PR tree-optimization/71437
* tree-vrp.c (simplify_stmt_for_jump_threading): Lookup the
conditional in the hash table first.
(vrp_dom_walker::before_dom_children): Extract condition from
ASSERT_EXPR.  Record condition, its inverion and any implied
conditions as well.

PR tree-optimization/71437
* gcc.dg/tree-ssa/pr71437.c: New test.
* gcc.dg/tree-ssa/20040305-1.c: Test earlier dump.
* gcc.dg/tree-ssa/ssa-dom-thread-4.c: Adjust for jump threads
now caught by VRP, but which were previously caught by DOM.

From-SVN: r246225

re PR tree-optimization/80079 (Conditional jump or move depends on uninitialised value(s): gimple-ssa-store-merging.c:768)

PR tree-optimization/80079
* gimple-ssa-store-merging.c (class pass_store_merging): Initialize
m_stores_head.

Co-Authored-By: Markus Trippelsdorf <markus@trippelsdorf.de>
From-SVN: r246224

re PR c++/80075 (ICE: "statement marked for throw, but doesn’t" with -fnon-call-exceptions)

2017-03-17  Richard Biener  <rguenther@suse.de>

PR middle-end/80075
* tree-eh.c (stmt_could_throw_1_p): Only handle gimple assigns.
Properly verify the LHS before the RHS possibly claims to be
handled.
(stmt_could_throw_p): Hande gimple conds fully here.  Clobbers
do not throw.

* g++.dg/torture/pr80075.C: New testcase.

From-SVN: r246223

Document -fipa-vrp

2017-03-17  Martin Jambor  <mjambor@suse.cz>

* doc/invoke.texi (Option Options): Include -fipa-vrp in the list.
(List of -O2 options): Likewise.
(-fipa-bit-cp): Replace "ipa" with "interprocedural."
(-fipa-vrp) New.

From-SVN: r246221

Print bug url for gcov-dump --help

2017-03-17  Tom de Vries  <tom@codesourcery.com>

* gcov-dump.c (print_usage): Print bug_report_url.

From-SVN: r246219

re PR other/80050 (gcc/genmatch.c: PVS-Studio: V590)

2017-03-17  Richard Biener  <rguenther@suse.de>

PR middle-end/80050
* genmatch.c (parser::next): Remove pointless check for CPP_EOF.
(parser::peek): Likewise.

From-SVN: r246218

re PR tree-optimization/80048 (gcc/sese.c: PVS-Studio: Improper Release of Memory Before Removing Last Reference (CWE-401))

2017-03-17  Richard Biener  <rguenther@suse.de>

PR tree-optimization/80048
* sese.c (free_sese_info): Properly release rename_map and
copied_bb_map elements.

From-SVN: r246217

Daily bump.

From-SVN: r246216

stabilize store merging

Don't let pointer randomization change the order in which we process
store chains.  This may cause SSA_NAMEs to be released in different
order, and if they're reused later, they may cause differences in SSA
partitioning, leading to differences in expand, and ultimately to
different code.

bootstrap-debug-lean (-fcompare-debug) on i686-linux-gnu has failed in
haifa-sched.c since r245196 exposed the latent ordering problem in
store merging.  In this case, the IR differences (different SSA names
selected for copies in out-of-SSA, resulting in some off-by-one
differences in pseudos) were not significant enough to be visible in
the compiler output.

for  gcc/ChangeLog

* gimple-ssa-store-merging.c (struct imm_store_chain_info):
Add linked-list forward and backlinks.  Insert on
construction, remove on destruction.
(class pass_store_merging): Add m_stores_head field.
(pass_store_merging::terminate_and_process_all_chains):
Iterate over m_stores_head list.
(pass_store_merging::terminate_all_aliasing_chains):
Likewise.
(pass_store_merging::execute): Check for debug stmts first.
Push new chains onto the m_stores_head stack.

From-SVN: r246213

* decl.c (start_enum): std::byte aliases anything.

From-SVN: r246212

* init.c (cpp_init_builtins): Update __cplusplus for C++17.

From-SVN: r246211

re PR c++/79797 (ICE with NSDMI, this pointer  and constexpr)

PR c++/79797
* constexpr.c (lookup_placeholder): Tweak.

From-SVN: r246210

re PR target/71294 (ICE in gen_add2_insn, at optabs.c:4442 on powerpc64le-linux)

[gcc]
2017-03-16  Michael Meissner  <meissner@linux.vnet.ibm.com>

PR target/71294
* config/rs6000/vsx.md (vsx_splat_<mode>, VSX_D iterator): Allow a
SPLAT operation on ISA 2.07 64-bit systems that have direct move,
but no MTVSRDD support, by doing MTVSRD and XXPERMDI.

[gcc/testsuite]
2017-03-16  Michael Meissner  <meissner@linux.vnet.ibm.com>

PR target/71294
* g++.dg/pr71294.C: New test.

From-SVN: r246209

re PR tree-optimization/71437 (Performance regression after r235817)

PR tree-optimization/71437
* tree-ssa-dom.c (dom_opt_dom_walker): Remove thread_across_edge
member function.  Implementation moved into after_dom_children
member function and into the threader's thread_outgoing_edges
function.
(dom_opt_dom_walker::after_dom_children): Simplify by moving
some code into new thread_outgoing_edges.
* tree-ssa-threadedge.c (thread_across_edge): Make static and simplify
definition.  Simplify marker handling (do it here).   Assume we always
have the available expression and the const/copies tables.
(thread_outgoing_edges): New function extracted from tree-ssa-dom.c
and tree-vrp.c
* tree-ssa-threadedge.h (thread_outgoing_edges): Declare.
* tree-vrp.c (equiv_stack): No longer file scoped.
(vrp_dom_walker): New class.
(vrp_dom_walker::before_dom_children): New member function.
(vrp_dom_walker::after_dom_children): Likewise.
(identify_jump_threads):  Setup domwalker.  Use it rather than
walking edges in a random order by hand.  Simplify setup/finalization.
(finalize_jump_threads): Remove.
(vrp_finalize): Do not call identify_jump_threads here.
(execute_vrp): Do it here instead and call thread_through_all_blocks
here too.

From-SVN: r246208

re PR tree-optimization/71437 (Performance regression after r235817)

PR tree-optimization/71437
* tree-ssa-dom.c (pfn_simplify): Add basic_block argument.  All
callers changed.
(simplify_stmt_for_jump_threading): Add basic_block argument.  All
callers changed.
(lhs_of_dominating_assert): Moved from here into tree-vrp.c.
(dom_opt_dom_walker::thread_across_edge): Remove
handle_dominating_asserts argument.  All callers changed.
(record_temporary_equivalences_from_stmts_at_dest): Corresponding
changes.  Remove calls to lhs_of_dominating_assert.  Other
uses of handle_dominating_asserts turn into unconditional code
(simplify_control_stmt_condition_1): Likewise.
(simplify_control_stmt_condition): Likewise.
(thread_through_normal_block, thread_across_edge): Likewise.
* tree-ssa-threadedge.h (thread_across_edge): Corresponding changes.
* tree-vrp.c (lhs_of_dominating_assert): Move here.  Return original
object if it is not an SSA_NAME.
(simplify_stmt_for_jump_threading): Call lhs_of_dominating_assert
before calling into the VRP specific simplifiers.
(identify_jump_threads): Remove handle_dominating_asserts
argument.

From-SVN: r246207

Fix tree-prof/pr66295.c

This testcase can only ever be built on x86 (it needs the "avx*"
attributes).  This patch skips the test elsewhere.

gcc/testsuite/
* gcc.dg/tree-prof/pr66295.c: Skip unless on an x86 target.

From-SVN: r246206

PR libstdc++/79980 fix target type of cast

PR libstdc++/79980
* src/c++11/codecvt.cc (to_integer(codecvt_mode)): Fix target type.

From-SVN: r246205

re PR fortran/80010 (diagnostics: typo $!)

PR fortran/80010
* parse.c (gfc_ascii_statement): Use !$ACC for ST_OACC_ATOMIC
and ST_OACC_END_ATOMIC, instead of !ACC.
* trans-decl.c (finish_oacc_declare): Use !$ACC instead of $!ACC.
* openmp.c (gfc_match_oacc_declare, gfc_match_oacc_wait,
gfc_resolve_oacc_declare): Likewise.

* gfortran.dg/goacc/asyncwait-3.f95: Adjust expected diagnostic.

From-SVN: r246204

re PR fortran/79886 (ICE in pp_format, at pretty-print.c:681)

PR fortran/79886
* tree-diagnostic.c (default_tree_printer): No longer static.
* tree-diagnostic.h (default_tree_printer): New prototype.
fortran/
* error.c (gfc_format_decoder): Rename plus argument to set_locus,
remove ATTRIBUTE_UNUSED from all arguments, call default_tree_printer
if not a Fortran specific spec.
* trans-io.c: Include options.h.
(gfc_build_st_parameter): Temporarily disable -Wpadded around layout
of artificial IO data structures.
testsuite/
* gfortran.dg/pr79886.f90: New test.

From-SVN: r246203

PR libstdc++/80041 fix codecvt_utf16<wchar_t> to use UTF-16 not UTF-8

PR libstdc++/80041
* src/c++11/codecvt.cc (__codecvt_utf16_base<wchar_t>::do_out)
(__codecvt_utf16_base<wchar_t>::do_in): Convert char arguments to
char16_t to work with UTF-16 instead of UTF-8.
* testsuite/22_locale/codecvt/codecvt_utf16/80041.cc: New test.

From-SVN: r246202

Fix encoding() and max_length() values for codecvt facets

* src/c++11/codecvt.cc (codecvt<char16_t, char, mbstate_t>)
(codecvt<char32_t, char, mbstate_t>, __codecvt_utf8_base<char16_t>)
(__codecvt_utf8_base<char32_t>, __codecvt_utf8_base<wchar_t>)
(__codecvt_utf16_base<char16_t>, __codecvt_utf16_base<char32_t>)
(__codecvt_utf16_base<wchar_t>, __codecvt_utf8_utf16_base<char16_t>)
(__codecvt_utf8_utf16_base<char32_t>)
(__codecvt_utf8_utf16_base<wchar_t>): Fix do_encoding() and
do_max_length() return values.
* testsuite/22_locale/codecvt/codecvt_utf16/members.cc: New test.
* testsuite/22_locale/codecvt/codecvt_utf8/members.cc: New test.
* testsuite/22_locale/codecvt/codecvt_utf8_utf16/members.cc: New test.

From-SVN: r246201

PR libstdc++/79980 fix BOM detection, maxcode checks, UCS2 handling

PR libstdc++/79980
* include/bits/locale_conv.h (__do_str_codecvt): Set __count on
error path.
* src/c++11/codecvt.cc (operator&=, operator|=, operator~): Overloads
for manipulating codecvt_mode values.
(read_utf16_bom): Compare input to BOM constants instead of integral
constants that depend on endianness.  Take mode parameter by
reference and adjust it, to distinguish between no BOM present and
UTF-16BE BOM present.
(ucs4_in, ucs2_span, ucs4_span): Adjust calls to read_utf16_bom.
(surrogates): New enumeration type.
(utf16_in, utf16_out): Add surrogates parameter to choose between
UTF-16 and UCS2 behaviour.
(utf16_span, ucs2_span): Use std::min not std::max.
(ucs2_out): Use std::min not std::max.  Disallow surrogate pairs.
(ucs2_in): Likewise. Adjust calls to read_utf16_bom.
* testsuite/22_locale/codecvt/codecvt_utf16/79980.cc: New test.
* testsuite/22_locale/codecvt/codecvt_utf8/79980.cc: New test.

From-SVN: r246200

PR libstdc++/79511 fix endianness of UTF-16 data

PR libstdc++/79511
* src/c++11/codecvt.cc (write_utf16_code_point): Don't write 0xffff
as a surrogate pair.
(__codecvt_utf8_utf16_base<char32_t>::do_in): Use native endianness
for internal representation.
(__codecvt_utf8_utf16_base<wchar_t>::do_in): Likewise.
* testsuite/22_locale/codecvt/codecvt_utf8_utf16/79511.cc: New test.

From-SVN: r246199

PR libstdc++/80064 make heap algorithms work with function types

PR libstdc++/80064
* include/bits/stl_heap.h (__is_heap, push_heap, __adjust_heap)
(pop_heap, make_heap, sort_heap, is_heap_until, is_heap): Cope with
invalid instantiations using function types for _Compare argument.
* testsuite/25_algorithms/make_heap/80064.cc: New test.

From-SVN: r246197

PR libstdc++/67440 make pretty printers work with GDB 7.6 again

PR libstdc++/67440
* python/libstdcxx/v6/printers.py (find_type): Avoid gdb.Type.name
for GDB 7.6 compatibility, use gdb.Type.unqualified instead.

From-SVN: r246196

Fix typo and replace non-breaking spaces in libstdc++-v3/ChangeLog

From-SVN: r246191

2017-03-16  Tamar Christina  <tamar.christina@arm.com>

* config/aarch64/aarch64-simd.md (*aarch64_simd_mov<mode>)
Change ins into fmov.

From-SVN: r246190

[AArch64] Use 'x' constraint for vector HFmode multiplication by indexed element instructions

* config/aarch64/iterators.md (h_con): Return "x" for V4HF and V8HF.
* config/aarch64/aarch64-simd.md (*aarch64_fma4_elt_from_dup<mode>):
Use h_con constraint for operand 1.
(*aarch64_fnma4_elt_from_dup<mode>): Likewise.
(*aarch64_mulx_elt_from_dup<mode>): Likewise for operand 2.

From-SVN: r246189

re PR tree-optimization/71437 (Performance regression after r235817)

PR tree-optimization/71437
* tree-ssa-dom.c (derive_equivalences_from_bit_ior): New function.
(record_temporary_equivalences): Use it.

From-SVN: r246187

re PR tree-optimization/71437 (Performance regression after r235817)

PR tree-optimization/71437
* tree-ssa-dom.c (struct cond_equivalence): Moved from here into
tree-ssa-scopedtables.
(lookup_avail_expr, build_and_record_new_cond): Likewise.
(record_conditions, record_cond, vuse_eq): Likewise.
(record_edge_info): Adjust to API tweak of record_conditions.
(simplify_stmt_for_jump_threading): Similarly for lookup_avail_expr.
(record_temporary_equivalences, optimize_stmt): Likewise.
(eliminate_redundant_computations): Likewise.
(record_equivalences_from_stmt): Likewise.
* tree-ssa-scopedtables.c: Include options.h and params.h.
(vuse_eq): New function, moved from tree-ssa-dom.c
(build_and_record_new_cond): Likewise.
(record_conditions): Likewise.  Accept vector of conditions rather
than edge_equivalence structure for first argument.
for the first argument.
(avail_exprs_stack::lookup_avail_expr): New member function, moved
from tree-ssa-dom.c.
(avail_exprs_stack::record_cond): Likewise.
* tree-ssa-scopedtables.h (struct cond_equivalence): Moved here
from tree-ssa-dom.c.
(avail_exprs_stack): Add new member functions lookup_avail_expr
and record_cond.
(record_conditions): Declare.

From-SVN: r246186

Daily bump.

From-SVN: r246185

Implement LWG 2857, {variant,optional,any}::emplace should return the constructed value.

Implement LWG 2857, {variant,optional,any}::emplace should
return the constructed value.
* include/std/any (emplace(_Args&&...)): Change the return type and
return a reference to the constructed value.
(emplace(initializer_list<_Up>, _Args&&...)): Likewise.
* include/std/optional (emplace(_Args&&...)): Likewise.
(emplace(initializer_list<_Up>, _Args&&...)): Likewise.
* include/std/variant (emplace<_Tp>(_Args&&...)): Likewise.
(emplace<_Tp>(initializer_list<_Up>, _Args&&...)): Likewise.
(emplace<_Np>(_Args&&...)): Likewise.
(emplace<_Np>(initializer_list<_Up>, _Args&&...)): Likewise.
* testsuite/20_util/any/assign/emplace.cc: Add tests for
checking the return value of emplace.
* testsuite/20_util/any/misc/any_cast_neg.cc: Adjust.
* testsuite/20_util/optional/assignment/6.cc: Add tests for
checking the return value of emplace.
* testsuite/20_util/variant/run.cc: Likewise.

From-SVN: r246182

re PR target/80017 (ICE: Max. number of generated reload insns per insn is achieved (90))

2017-03-15  Vladimir Makarov  <vmakarov@redhat.com>

PR target/80017
* lra-constraints.c (process_alt_operands): Increase reject for
reloading an input/output operand.

From-SVN: r246181

PR c++/80043 - ICE with -fpermissive

* typeck.c (convert_for_assignment): Handle instantiate_type
not giving an error.

From-SVN: r246180

re PR target/79038 (Improve PowerPC ISA 3.0 conversion between integers and hardware _Float128)

[gcc]
2017-03-15  Michael Meissner  <meissner@linux.vnet.ibm.com>

PR target/79038
* config/rs6000/rs6000.md (float<QHI:mode><IEEE128:mode>2): Define
insns to convert from signed/unsigned char/short to IEEE 128-bit
floating point.
(floatuns<QHI:mode><IEEE128:mode>2): Likewise.

[gcc/testsuite]
2017-03-15  Michael Meissner  <meissner@linux.vnet.ibm.com>

PR target/79038
* gcc.target/powerpc/pr79038-1.c: New test.

From-SVN: r246178

* de.po: Update.

From-SVN: r246177

rs6000: Do not xfail nint_2.f90 on Linux systems

It was XFAILed because there was a bug in glibc, but that bug was fixed
nine years ago.  Nowadays everyone uses a version of glibc with the bug
fixed, so we should no longer XFAIL the test.

gcc/testsuite/
PR fortran/33271
* gfortran.dg/nint_2.f90: Do not xfail powerpc*-*-linux*.

From-SVN: r246174

PR libstdc++/62045 fix O(N) insertion in pd_ds binary heap

2017-03-15  Xi Ruoyao  <ryxi@stu.xidian.edu.cn>

PR libstdc++/62045
* include/ext/pb_ds/qdetail/binary_heap_/binary_heap_.hpp
(is_heap): Remove.
(push_heap): Remove the wrong checking using is_heap.
(make_heap): Remove the assertion using is_heap.
* include/ext/pb_ds/detail/binary_heap_/insert_fn_imps.hpp
(modify): Ditto.
(resize_for_insert_if_needed): Add PB_DS_ASSERT_VALID after
calling make_heap.

2017-03-15  Jonathan Wakely  <jwakely@redhat.com>

PR libstdc++/62045
* testsuite/ext/pb_ds/regression/priority_queue_binary_heap-62045.cc:
New test.
* testsuite/ext/pb_ds/regression/priority_queues.cc: Fix copy&paste
error in comment.

From-SVN: r246173

Fix translation issue with character length * errors (PR fortran/79860)

gcc/fortran/ChangeLog:
PR fortran/79860
* resolve.c (resolve_contained_fntype): Make error messages more
amenable to translation.

From-SVN: r246170

[gcc, testsuite] Don't xfail on arm

PR testsuite/79356
* gcc.dg/attr-alloc_size-11.c: Don't xfail on arm.

From-SVN: r246167

Fix typo in config.h.in comment

* acinclude.m4 (GLIBCXX_CHECK_S_ISREG_OR_S_IFREG): Fix typo in
comment.
* config.h.in: Regenerate.
* configure: Regenerate.
* doc/Makefile.in: Regenerate.

From-SVN: r246165

Don't use Win32 functions on CYGWIN.

This was a workaround for a cygwin bug which was fixed 4 years ago,
and cygwin hasn't supported affected versions for a long time.

2017-03-15  NightStrike  <nightstrike@gmail.com>
    Janne Blomqvist  <jb@gcc.gnu.org>

* intrinsics/random.c (getosrandom): Remove check for __CYGWIN__
preprocessor flag.
* intrinsics/system_clock.c: Likewise.
(system_clock_4): Likewise.
(system_clock_8): Likewise.
* intrinsics/time_1.h: Don't include windows.h if __CYGWIN__ is
defined.

Co-Authored-By: Janne Blomqvist <jb@gcc.gnu.org>
From-SVN: r246162

re PR target/80019 (ICE in ix86_vector_duplicate_value, at config/i386/i386.c:42584)

PR target/80019
* config/i386/i386.c (ix86_vector_duplicate_value): Create
subreg of inner mode for values already in registers.

testsuite/ChangeLog:

PR target/80019
* gcc.target/i386/pr80019.c: New test.

From-SVN: r246161

c6x.c (hwloop_optimize): Handle case where the old iteration reg is used after the loop.

* config/c6x/c6x.c (hwloop_optimize): Handle case where the old
iteration reg is used after the loop.

From-SVN: r246160

* c-parser.c (c_parser_enum_specifier): Remove redundant line.

From-SVN: r246156

Removed unused dg-error.

2017-03-15  Martin Liska  <mliska@suse.cz>

* gcc.dg/tree-prof/pr66295.c: Removed unused dg-error.

From-SVN: r246154

re PR libfortran/79956 (many new -Wmaybe-uninitialized warnings with bootstrap-O3)

2017-03-15  Thomas Koenig  <tkoenig@gcc.gnu.org>

PR libfortran/79956
* libgfortran.h (GFC_ASSERT):  New macro.
* m4/reshape.m4 (reshape_'rtype_ccode`):  Use GFC_ASSERT
to specify that sdim > 0 and rdim > 0.
* intrinsic/reshape_generic.c (reshape_internal):  Likweise.
* generated/reshape_c10.c: Regenerated.
* generated/reshape_c16.c: Regenerated.
* generated/reshape_c4.c: Regenerated.
* generated/reshape_c8.c: Regenerated.
* generated/reshape_i16.c: Regenerated.
* generated/reshape_i4.c: Regenerated.
* generated/reshape_i8.c: Regenerated.
* generated/reshape_r10.c: Regenerated.
* generated/reshape_r16.c: Regenerated.
* generated/reshape_r4.c: Regenerated.
* generated/reshape_r8.c: Regenerated.

From-SVN: r246153

re PR bootstrap/79771 (in-tree zlib breaks build)

2017-03-15  Yaakov Selkowitz <yselkowitz@redhat.com>

PR bootstrap/79771
* gzguts.h (WIDECHAR): Do not define for __CYGWIN__.
* zlib.h (gzopen_w): Do not declare for __CYGWIN__.
* win32/zlib.def: Remove gzopen_w.

From-SVN: r246152

re PR tree-optimization/79800 (wrong snprintf result range with precision in a narrow negative-positive range)

PR tree-optimization/79800
* gimple-ssa-sprintf.c (format_floating: Add argument.  Handle
precision in negative-positive range.
(format_floating): Call non-const overload with adjusted precision.

PR tree-optimization/79800
* gcc.dg/tree-ssa/builtin-sprintf-warn-15.c: Add test cases.
* gcc.dg/tree-ssa/pr79800.c: New test.

From-SVN: r246151

re PR target/79947 (ICE in rs6000_emit_swsqrt at gcc/config/rs6000/rs6000.c:37570)

[gcc]
2017-03-14  Michael Meissner  <meissner@linux.vnet.ibm.com>

PR target/79947
* config/rs6000/rs6000.h (TARGET_FRSQRTES): Add check for
-mpowerpc-gfxopt.

[gcc/testsuite]
2017-03-14  Michael Meissner  <meissner@linux.vnet.ibm.com>

PR target/79947
* gcc.target/powerpc/pr79947.c: New test.

From-SVN: r246150

Daily bump.

From-SVN: r246149

re PR middle-end/80020 (gcc confused about aligned_alloc argument order)

PR middle-end/80020
* builtin-attrs.def (ATTR_ALLOC_SIZE_2_NOTHROW_LIST): New macro.
* builtins.def (aligned_alloc): Use it.

PR middle-end/80020
* gcc.dg/attr-alloc_size-6.c: Correct aligned_alloc argument order.
* gcc.dg/attr-alloc_size-7.c: Same.
* gcc.dg/attr-alloc_size-9.c: Same.
* gcc.dg/builtin-alloc-size.c: Same.
* gcc.dg/pr80020.c: New test.

From-SVN: r246145

re PR c/79936 (ICE with -Walloc-size-larger-than=32767)

PR c/79936
* Makefile.in (GTFILES): Add calls.c.
* calls.c: Include "gt-calls.h".

From-SVN: r246144

re PR rtl-optimization/79728 (ICE in setup_pressure_classes, at ira.c:912)

PR rtl-optimization/79728
* regs.h (struct target_regs): New field
x_contains_allocatable_regs_of_mode.
(contains_allocatable_regs_of_mode): New macro.
* reginfo.c (init_reg_sets_1): Initialize it, and change
contains_reg_of_mode so it includes global regs as well.
* reload.c (push_reload): Use contains_allocatable_regs_of_mode
rather than contains_regs_of_mode.

PR rtl-optimization/79728
* gcc.target/i386/sse-globalreg.c: New test.

From-SVN: r246138

Document options that can't be combined with -fcheck-pointer-bounds.

2017-03-14  Martin Liska  <mliska@suse.cz>

* doc/invoke.texi: Document options that can't be combined with
-fcheck-pointer-bounds.

From-SVN: r246130

Document -Wchkp (PR middle-end/79831).

2017-03-14  Martin Liska  <mliska@suse.cz>

PR middle-end/79831
* doc/invoke.texi (-Wchkp): Document the option.

From-SVN: r246129

PR libstdc++/79162 disambiguate assignment from string_view

PR libstdc++/79162
* include/bits/basic_string.h [_GLIBCXX_USE_CXX11_ABI]
(basic_string<C,T,A>::operator=(basic_string_view<C,T>)): Replace
with a constrained template.
[!_GLIBCXX_USE_CXX11_ABI]
(basic_string<C,T,A>::operator=(basic_string_view<C,T>)): Likewise.
* testsuite/21_strings/basic_string/cons/char/79162.cc: New test.
* testsuite/21_strings/basic_string/cons/wchar_t/79162.cc: New test.

From-SVN: r246128

PR c++/79393 DR 1658 workaround

PR c++/79393 DR 1658 workaround
* method.c (synthesized_method_base_walk): Inihibit abstract class
virtual base access check here.
(synthesized_method_walk): Not here.

From-SVN: r246126

Install gcov-dump.

2017-03-14  Martin Liska  <mliska@suse.cz>

* Makefile.in: Install gcov-dump.

From-SVN: r246125

Do not ICE on an invalid input for MV.

2017-03-14  Martin Liska  <mliska@suse.cz>

* multiple_target.c (expand_target_clones): Bail out for
an invalid attribute.

From-SVN: r246124

alias.c (struct alias_set_entry): Pack properly.

2017-03-14  Richard Biener  <rguenther@suse.de>

* alias.c (struct alias_set_entry): Pack properly.
* cfgloop.h (struct loop): Likewise.
* cse.c (struct set): Likewise.
* ipa-utils.c (struct searchc_env): Likewise.
* loop-invariant.c (struct invariant): Likewise.
* lra-remat.c (struct cand): Likewise.
* recog.c (struct change_t): Likewise.
* rtl.h (struct address_info): Likewise.
* symbol-summary.h (function_summary): Likewise.
* tree-loop-distribution.c (struct partition): Likewise.
* tree-object-size.c (struct object_size_info): Likewise.
* tree-ssa-loop-ivopts.c (struct cost_pair): Likewise.
* tree-ssa-threadupdate.c (struct ssa_local_info_t): Likewise.
* tree-vect-data-refs.c (struct _vect_peel_info): Likewise.
* tree-vect-slp.c (struct _slp_oprnd_info): Likewise.
* tree-vect-stmts.c (struct simd_call_arg_info): Likewise.
* tree-vectorizer.h (struct _loop_vec_info): Likewise.
(struct _stmt_vec_info): Likewise.

From-SVN: r246121

Verify that target can create a dispatcher call (PR target/79892).

2017-03-14  Martin Liska  <mliska@suse.cz>

PR target/79892
* multiple_target.c (create_dispatcher_calls): Check that
a target can create a function dispatcher.

From-SVN: r246120

Fix multiple target clones nodes (PR lto/66295).

2017-03-14  Martin Liska  <mliska@suse.cz>

PR lto/66295
* multiple_target.c (expand_target_clones): Drop local.local
flag for default implementation.
2017-03-14  Martin Liska  <mliska@suse.cz>

PR lto/66295
* gcc.dg/tree-prof/pr66295.c: New test.

From-SVN: r246119

s-osinte-linux.ads (struct_sigaction): Use correct type for sa_flags.

2017-03-14  James Cowgill  <James.Cowgill@imgtec.com>

        * s-osinte-linux.ads (struct_sigaction): Use correct type for sa_flags.

From-SVN: r246118

re PR tree-optimization/80030 (valgrind error in vect_get_slp_defs at tree-vect-slp.c:3360)

2017-03-14  Richard Biener  <rguenther@suse.de>

PR tree-optimization/80030
* tree-vect-stmts.c (vectorizable_store): Plug memleak.

From-SVN: r246117

Use gcc_fallthrough() instead of __attribute__((fallthrough)

Without this my build breaks on older compilers like GCC-5.4.

gcc/ChangeLog:

2017-03-13  Kito Cheng  <kito.cheng@gmail.com>

       * config/riscv/riscv.c (riscv_emit_float_compare>: Use
       gcc_fallthrough() instead of __attribute__((fallthrough));

From-SVN: r246116

Daily bump.

From-SVN: r246115

* es.po: Update.

From-SVN: r246112

gcc.texi: Remove "up" link to (DIR).

* doc/gcc.texi: Remove "up" link to (DIR).
* doc/gccint.texi: Ditto.

From-SVN: r246111

install.texi (Specific): Remove reference to binutils 2.13.

* doc/install.texi (Specific) <avr>: Remove reference to
binutils 2.13.

From-SVN: r246110

re PR libstdc++/80034 (unqualified calls to std::distance in std::list::sort)

PR libstdc++/80034
* include/bits/list.tcc (merge(list&&)): Use const for the size_t
in the catch-block.
(merge(list&&, _StrictWeakOrdering)): Likewise.
* testsuite/23_containers/list/operations/80034.cc: New.

From-SVN: r246107

* de.po, fr.po: Update.

From-SVN: r246106

libiberty: Initialize d_printing in all cplus_demangle_fill_* functions.

While integrating the d_printing recursion guard change into gdb I
noticed we forgot to initialize the demangle_component d_printing
field in cplus_demangle_fill_{name,extended_operator,ctor,dtor}.
As is done in cplus_demangle_fill_{component,builtin_type,operator}.
It happened to work because in gcc all demangle_components were
allocated through d_make_empty. But gdb has its own allocation
mechanism (as might other users).

libiberty/ChangeLog:

       * cp-demangle.c (cplus_demangle_fill_name): Initialize
       demangle_component d_printing.
       (cplus_demangle_fill_extended_operator): Likewise.
       (cplus_demangle_fill_ctor): Likewise.
       (cplus_demangle_fill_dtor): Likewise.

From-SVN: r246105

Implement LWG 2806, Base class of bad_optional_access.

* include/std/optional (bad_optional_access):
Derive from std::exception.
(bad_optional_access::bad_optional_access): Adjust.
(bad_optional_access::what): New.
(__throw_bad_optional_access(const char*)):
Remove the parameter and adjust calls.
* testsuite/20_util/optional/cons/value_neg.cc: Adjust.
* testsuite/20_util/optional/typedefs.cc: Likewise.

From-SVN: r246103

riscv.c (riscv_emit_float_compare): Use fallthru attribute rather than comments.

        * config/riscv/riscv.c (riscv_emit_float_compare): Use fallthru
        attribute rather than comments.

From-SVN: r246101

pdp11.md (movmemhi): Adjust operand numbers to match_scratch operand is highest.

* config/pdp11/pdp11.md (movmemhi): Adjust operand numbers to
match_scratch operand is highest.

From-SVN: r246100

Do not warn -Wsuggest-attribute=noreturn for main.chkp (PR middle-end/78339).

2017-03-13  Martin Liska  <mliska@suse.cz>

PR middle-end/78339
* ipa-pure-const.c (warn_function_noreturn): If the declarations
is a CHKP clone, use original declaration.
2017-03-13  Martin Liska  <mliska@suse.cz>

PR middle-end/78339
* gcc.target/i386/mpx/pr78339.c: New test.

From-SVN: r246098

[ARC] Code size modifications.

gcc/
2017-03-13  Claudiu Zissulescu  <claziss@synopsys.com>

* config/arc/arc.c (arc_init): Use multiplier whenever we have it.
(arc_conditional_register_usage): Use a different allocation order
when optimizing for size.
* common/config/arc/arc-common.c (arc_option_optimization_table):
Section anchors default on when optimizing for size.

From-SVN: r246091

[ARC] Fix tst_bitfield_tst pattern.

gcc/
2017-03-13  Claudiu Zissulescu  <claziss@synopsys.com>

* config/arc/arc.md (*tst_bitfield_tst): Fix pattern.

gcc/testsuite
2017-03-13  Claudiu Zissulescu  <claziss@synopsys.com>

* testsuite/gcc.target/arc/bitfield.c: New file.

From-SVN: r246090

[ARC] Add code density instructions.

gcc/
2017-03-13  Claudiu Zissulescu  <claziss@synopsys.com>

* config/arc/arc.c (arc_output_addsi): Emit code density adds.
* config/arc/arc.md (cpu_facility): Add cd variant.
(*movqi_insn): Add code density variant.
(*movhi_insn): Likewise.
(*movqi_insn): Likewise.
(*addsi3_mixed): Likewise.
(subsi3_insn): Likewise.

From-SVN: r246089

[ARC] Fix conditional move contstraint

Move pattern (movsi_insn) allows predicated instructions to be
instructions which can hold all registers.  However, the conditional
variant doesn't.  This patch fixes this problem.

2017-03-13  Claudiu Zissulescu  <claziss@synopsys.com>

* config/arc/arc.md (movsi_cond_exec): Update constraint.

From-SVN: r246088

[ARC] Handle complex PIC move patterns.

fwprop step is placing in the REG_EQUIV notes constant pic unspecs
expressions.  Then, loop may use these notes for optimizations
rezulting in complex patterns that are not supported by the current
implementation.

The patch adds handling of complex PIC addresses having MINUS or UNARY
operations.

gcc/
2017-03-13  Claudiu Zissulescu  <claziss@synopsys.com>

* config/arc/arc.c (arc_legitimize_pic_address): Handle PIC
expressions with MINUS and UNARY ops.

gcc/testsuite
2017-03-13  Claudiu Zissulescu  <claziss@synopsys.com>

* gcc.target/arc/pr9001090948.c: New file.

From-SVN: r246087

PR c++/79393 DR 1658 workaround

PR c++/79393 DR 1658 workaround
* method.c (synthesized_method_walk): Check vbases of abstract
classes for dtor walk.

From-SVN: r246085

[ARM] PR target/79911: Invalid vec_select arguments

PR target/79911
* config/arm/neon.md (vec_sel_widen_ssum_lo<VQI:mode><VW:mode>3):
Rename to...
(vec_sel_widen_ssum_lo<mode><V_half>3): ... This. Avoid mismatch
between vec_select and vector argument.
(vec_sel_widen_ssum_hi<VQI:mode><VW:mode>3): Rename to...
(vec_sel_widen_ssum_hi<mode><V_half>3): ... This. Likewise.
(vec_sel_widen_usum_lo<VQI:mode><VW:mode>3): Rename to...
(vec_sel_widen_usum_lo<mode><V_half>3): ... This.
(vec_sel_widen_usum_hi<VQI:mode><VW:mode>3): Rename to...
(vec_sel_widen_usum_hi<mode><V_half>3): ... This.

From-SVN: r246084

re PR other/79991 (typo in params.def, PARAM_VECT_MAX_PEELING_FOR_ALIGNMENT)

2017-03-13  Richard Biener  <rguenther@suse.de>

PR other/79991
* params.def (vect-max-peeling-for-alignment): Fix typo.

From-SVN: r246083

Daily bump.

From-SVN: r246082

install.texi (Specific): Remove description of issue that only occurred with binutils below 2.18.

* doc/install.texi (Specific) <mips-*-*>: Remove description of
issue that only occurred with binutils below 2.18.

From-SVN: r246079

install.texi (Specific): No longer refer to binutils 2.11/2.12 minimum.

* doc/install.texi (Specific) <cris-axis-elf>: No longer
refer to binutils 2.11/2.12 minimum.

From-SVN: r246078

install.texi (Specific): Remove link to ftp. and simplify binutils requirement.

* doc/install.texi (Specific) <powerpc-*-*>: Remove link to
ftp.kernel.org and simplify binutils requirement.

From-SVN: r246077

Implement LWG 2934, optional<const T> doesn't compare with T.

* include/std/optional
(operator==(const optional<_Tp>&, const optional<_Tp>&)):
Turn into operator==(const optional<_Tp>&, const optional<_Up>&).
(operator!=(const optional<_Tp>&, const optional<_Tp>&)):
Turn into operator!=(const optional<_Tp>&, const optional<_Up>&).
(operator<(const optional<_Tp>&, const optional<_Tp>&)):
Turn into operator<(const optional<_Tp>&, const optional<_Up>&.
(operator>(const optional<_Tp>&, const optional<_Tp>&)):
Turn into operator>(const optional<_Tp>&, const optional<_Up>&.
(operator<=(const optional<_Tp>&, const optional<_Tp>&)):
Turn into operator<=(const optional<_Tp>&, const optional<_Up>&).
(operator>=(const optional<_Tp>&, const optional<_Tp>&)):
Turn into operator>=(const optional<_Tp>&, const optional<_Up>&).
(operator==(const optional<_Tp>&, const _Tp&)):
Turn into operator==(const optional<_Tp>&, const _Up&).
(operator==(const _Tp&, const optional<_Tp>&)):
Turn into operator==(const _Up&, const optional<_Tp>&).
(operator!=(const optional<_Tp>&, const _Tp&)):
Turn into operator!=(const optional<_Tp>&, const _Up&).
(operator!=(const _Tp&, const optional<_Tp>&)):
Turn into operator!=(const _Up&, const optional<_Tp>&).
(operator<(const optional<_Tp>&, const _Tp&)):
Turn into operator<(const optional<_Tp>&, const _Up&).
(operator<(const _Tp&, const optional<_Tp>&)):
Turn into operator<(const _Up&, const optional<_Tp>&).
(operator>(const optional<_Tp>&, const _Tp&)):
Turn into operator>(const optional<_Tp>&, const _Up&).
(operator>(const _Tp&, const optional<_Tp>&)):
Turn into operator>(const _Up&, const optional<_Tp>&).
(operator<=(const optional<_Tp>&, const _Tp&)):
Turn into operator<=(const optional<_Tp>&, const _Up&).
(operator<=(const _Tp&, const optional<_Tp>&)):
Turn into operator<=(const _Up&, const optional<_Tp>&).
(operator>=(const optional<_Tp>&, const _Tp&)):
Turn into operator>=(const optional<_Tp>&, const _Up&).
(operator>=(const _Tp&, const optional<_Tp>&)):
Turn into operator>=(const _Up&, const optional<_Tp>&).
* testsuite/20_util/optional/relops/7.cc: New.

From-SVN: r246076