libgo: update to Go 1.11.1 release

    Reviewed-on: https://go-review.googlesource.com/c/140277

From-SVN: r264932

Fix ICE on block move when using LRA.

    * config/pdp11/pdp11-protos.h (output_block_move): Remove.
    (expand_block_move): New function.
    * config/pdp11/pdp11.c (output_block_move): Remove.
    (expand_block_move): New function.
    * config/pdp11/pdp11.h (MOVE_RATIO): New definition.
    * config/pdp11/pdp11.md (movmemhi): Use expand_block_move.
    (*movmemhi1): Remove.

From-SVN: r264930

Come up with gcc/testsuite/g++.target/i386/i386.dg and move there some tests.

2018-10-08  Martin Liska  <mliska@suse.cz>

* gcc.target/i386/i386.exp: Move procedures to
target-supports.exp.
* g++.target/i386/i386.exp: New file.
* gcc.target/i386/mv*.C: Move here tests and remove
target filter in these tests.

From-SVN: r264929

[Fortran] Disable "Assignment to contiguous pointer from non-contiguous target" error

gcc/fortran/
* expr.c (gfc_check_pointer_assign): Demote "Assignment to
contiguous pointer from non-contiguous target" to a warning.

gcc/testsuite/
* gfortran.dg/contiguous_4.f90: Adjust.
* gfortran.dg/contiguous_4.f90: New test.

From-SVN: r264928

S/390: Increase latencies for some FP instructions

This patch increases the latency of some floating point instructions to better
match the real machine's behavior.

2018-10-08  Robin Dapp  <rdapp@linux.ibm.com>

* config/s390/2827.md: Increase latencies for some FP instructions.

From-SVN: r264927

tree-vect-loop.c (vect_compute_single_scalar_iteration_cost): Open a dump scope.

2018-10-08  Richard Biener  <rguenther@suse.de>

* tree-vect-loop.c (vect_compute_single_scalar_iteration_cost):
Open a dump scope.
* tree-vectorizer.c (dump_stmt_cost): Add cost param and dump it.
* tree-vectorizer.h (dump_stmt_cost): Adjust.
(add_stmt_cost): Dump return value of the hook.

From-SVN: r264923

PR libstdc++/87538 Verify fix for std::experimental::not_fn

PR libstdc++/87538
* testsuite/experimental/functional/87538.cc: New test.

From-SVN: r264922

PR libstdc++/87538 fix std::not_fn exception specifications

PR libstdc++/87538
* include/std/functional (_Not_fn::operator()): Check value of
__is_nothrow_invocable as well.
* testsuite/20_util/function_objects/not_fn/87538.cc: New test.

From-SVN: r264921

re PR fortran/86372 (Segfault on ASSOCIATE statement with CHARACTER variable)

2018-10-08  Paul Thomas  <pault@gcc.gnu.org>

PR fortran/86372
* trans-stmt.c (trans_associate_var): Character associate names
with variable string length do not have to be deferred length
for the string length to be set, if variable.

2018-10-08  Paul Thomas  <pault@gcc.gnu.org>

PR fortran/86372
* gfortran.dg/associate_41.f90: New test.

From-SVN: r264919

Require string merging support in gnat.dg/string_merge?.adb etc.

* gcc.dg/merge-all-constants-2.c: Require string_merging support.
* gnat.dg/string_merge1.adb: Likewise.
* gnat.dg/string_merge2.adb: Likewise.

From-SVN: r264918

Require constructor priority support in c-c++-common/Wprio-ctor-dtor.c

* c-c++-common/Wprio-ctor-dtor.c: Require init_priority support.

From-SVN: r264917

Limit a MV test just for x86 target.

2018-10-08  Martin Liska  <mliska@suse.cz>

* g++.dg/ext/pr82625.C: Add dg-compile filter.

From-SVN: r264916

re PR fortran/86372 (Segfault on ASSOCIATE statement with CHARACTER variable)

2018-10-08  Paul Thomas  <pault@gcc.gnu.org>

PR fortran/86372
* trans-stmt.c (trans_associate_var): Character associate names
with variable string length do not have to be deferred length
for the string length to be set, if variable.

2018-10-08  Paul Thomas  <pault@gcc.gnu.org>

PR fortran/86372
* gfortran.dg/associate_41.f90: New test.

From-SVN: r264915

re PR c++/71128 ([concepts] ICE on ill-formed explicit instantiation of a function concept)

/cp
2018-10-08  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/71128
* pt.c (do_decl_instantiation): Per 12.6.8/5, a concept cannot be
explicitly instantiated.

/testsuite
2018-10-08  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/71128
* g++.dg/concepts/pr71128.C: New.

From-SVN: r264914

Don't ICE on vectors of enums (PR 87286)

We've traditionally allowed vectors of enums (not sure if that's
deliberate) but vector_types_compatible_elements_p checked for
INTEGER_TYPE rather than INTEGRAL_TYPE_P.

2018-10-08  Richard Sandiford  <richard.sandiford@arm.com>

gcc/c-family/
PR c/87286
* c-common.c (vector_types_compatible_elements_p): Use
INTEGRAL_TYPE_P instead of checking only for INTEGER_TYPE.

gcc/testsuite/
PR c/87286
* gcc.dg/pr87286.c: New test.

From-SVN: r264913

re PR middle-end/63155 (memory hog)

2018-10-08  Richard Biener  <rguenther@suse.de>

PR tree-optimization/63155
* tree-ssa-propagate.c (add_ssa_edge): Do cheap check first.
(ssa_propagation_engine::ssa_propagate): Remove redundant
bitmap bit clearing.

From-SVN: r264912

list (list<>::cbegin()): Use C++11 direct initialization.

2018-10-08  François Dumont  <fdumont@gcc.gnu.org>

* include/debug/list (list<>::cbegin()): Use C++11 direct
initialization.
(list<>::cend()): Likewise.
(list<>::emplace<>(const_iterator, _Args&&...)): Likewise.
(list<>::insert(const_iterator, initializer_list<>)): Likewise.
(list<>::insert(const_iterator, size_type, const _Tp&)): Likewise.
(list<>::erase(const_iterator, const_iterator)): Ensure consistent
iterator comparisons.
(list<>::splice(const_iterator, list&&, const_iterator,
const_iterator)): Likewise.

From-SVN: r264911

Daily bump.

From-SVN: r264910

Daily bump.

From-SVN: r264906

Use gfc_charlen_type instead of int for string lenghts

This patch cleans up a few places where I noticed the code was still
using int instead gfc_charlen_type for string lengths.  Regtested on
x86_64-pc-linux-gnu, committed as obvious.

libgfortran/ChangeLog:

2018-10-06  Janne Blomqvist  <jb@gcc.gnu.org>

* io/unix.c (compare_file_filename): Use gfc_charlen_type instead
of int for string length.
(inquire_sequential): Likewise.
(inquire_direct): Likewise.
(inquire_formatted): Likewise.
(inquire_unformatted): Likewise.
(inquire_access): Likewise.
(inquire_read): Likewise.
(inquire_write): Likewise.
(inquire_readwrite): Likewise.
* io/unix.h (compare_file_filename): Likewise.
(inquire_sequential): Likewise.
(inquire_direct): Likewise.
(inquire_formatted): Likewise.
(inquire_unformatted): Likewise.
(inquire_read): Likewise.
(inquire_write): Likewise.
(inquire_readwrite): Likewise.

From-SVN: r264901

re PR fortran/86111 (ICE in gfc_arith_concat, at fortran/arith.c:985)

2018-10-06  Thomas Koenig  <tkoenig@gcc.gnu.org>

PR fortran/86111
* gfortran.h (enum arith): Add ARITH_WRONGCONCAT.
* arith.h (gfc_arith_error): Issue error for ARITH_WRONGCONCAT.
(gfc_arith_concat):  If the types of op1 and op2 are not
character of if their kinds do not match, issue ARITH_WRONGCONCAT.

2018-10-06  Thomas Koenig  <tkoenig@gcc.gnu.org>

PR fortran/86111
* gfortran.dg/array_constructor_type_23.f90: New test.

From-SVN: r264900

re PR fortran/83999 (ICE in gfc_trans_assignment_1, at fortran/trans-expr.c:10233)

2018-10-06  Paul Thomas  <pault@gcc.gnu.org>

PR fortran/83999
* resolve.c (resolve_fl_procedure): Include class functions in
the test that elemental function results be scalar.

2018-10-06  Paul Thomas  <pault@gcc.gnu.org>

PR fortran/83999
* gfortran.dg/elemental_function_4.f90 : New test.

From-SVN: r264899

re PR fortran/84640 (gcc/fortran/simplify.c:2587:9: runtime error: pointer index expression with base 0x0000090de160 overflowed to 0xffffffffc0632960)

 2018-10-06  Thomas Koenig  <tkoenig@gcc.gnu.org>

PR fortran/84640
* simplify.c (gfc_simplify_cshift): Extend size of hs_ex and ss_ex
by one. Set extents one past the array boundaries to zero to avoid
warning with instrumented compiler.
(gfc_simplify_eoshift): Likewise, only for ss_ex.

From-SVN: r264898

re PR rtl-optimization/86939 (IRA incorrectly creates an interference between a pseudo register and a hard register)

gcc/
PR rtl-optimization/86939
PR rtl-optimization/87479
* ira.h (non_conflicting_reg_copy_p): New prototype.
* ira-lives.c (ignore_reg_for_conflicts): New static variable.
(make_hard_regno_dead): Don't add conflicts for register
ignore_reg_for_conflicts.
(make_object_dead): Likewise.
(non_conflicting_reg_copy_p): New function.
(process_bb_node_lives): Set ignore_reg_for_conflicts for copies.
Remove special conflict handling of REAL_PIC_OFFSET_TABLE_REGNUM.
* lra-lives.c (ignore_reg_for_conflicts): New static variable.
(make_hard_regno_dead): Don't add conflicts for register
ignore_reg_for_conflicts.  Remove special conflict handling of
REAL_PIC_OFFSET_TABLE_REGNUM.  Remove now unused argument
check_pic_pseudo_p and update callers.
(mark_pseudo_dead): Don't add conflicts for register
ignore_reg_for_conflicts.
(process_bb_lives): Set ignore_reg_for_conflicts for copies.

gcc/testsuite/
PR rtl-optimization/86939
PR rtl-optimization/87479
* gcc.target/powerpc/pr86939.c: New test.
* gcc/testsuite/gcc.target/i386/pr49095.c: Fix expected results.

From-SVN: r264897

Daily bump.

From-SVN: r264896

RISC-V: Fix -fsignaling-nans for glibc testsuite.

gcc/
* config/riscv/riscv.md (f<quiet_pattern>_quiet<ANYF:mode><X:mode>4):
Add define_expand.  Add ! HONOR_SNANS check to current pattern.  Add
new pattern using HONOR_SNANS that emits one extra instruction.

Co-Authored-By: Jim Wilson <jimw@sifive.com>
From-SVN: r264892

rs6000: Some mfcr pattern simplification

* config/rs6000/rs6000.md (unnamed mfcr scc_comparison_operator
patterns): Merge SI and DI patterns to a GPR pattern.
(unnamed define_insn and define_split for record form of that): Merge
to a single define_insn_and_split pattern.

From-SVN: r264889

string_merge1.adb: Fix test expectations.

2018-10-05  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * gnat.dg/string_merge1.adb: Fix test expectations.
        * gnat.dg/string_merge2.adb: Likewise.

From-SVN: r264888

Support string locations for C++ in -Wformat (PR c++/56856)

-Wformat in the C++ FE doesn't work as well as it could:
(a) it doesn't report precise locations within the string literal, and
(b) it doesn't underline arguments for those arguments !CAN_HAVE_LOCATION_P,
despite having location wrapper nodes.

For example:

  Wformat-ranges.C:32:10: warning: format '%s' expects argument of type 'char*', but argument 2 has type 'int' [-Wformat=]
  32 |   printf("hello %s", 42);
     |          ^~~~~~~~~~

(a) is due to not wiring up the langhook for extracting substring
    locations.

    This patch uses the one in c-family; it also fixes string literal
    parsing so that it records string concatenations (needed for
    extracting substring locations from concatenated strings).

(b) is due to the call to maybe_constant_value here:
       fargs[j] = maybe_constant_value (argarray[j]);
    within build_over_call.

    The patch fixes this by building a vec of location_t values when
    calling check_function_arguments.
    I attempted to eliminate the maybe_constant_value call here, but
    it's needed by e.g. check_function_sentinel for detecting NULL,
    and that code is in "c-family", so it can't simply call into
    maybe_constant_value (which is in "cp").

With this patch, the output for the above example is improved to:

  Wformat-ranges.C:32:18: warning: format '%s' expects argument of type 'char*', but argument 2 has type 'int' [-Wformat=]
  32 |   printf("hello %s", 42);
     |                 ~^   ~~
     |                  |   |
     |                  |   int
     |                  char*
     |                 %d

gcc/cp/ChangeLog:
PR c++/56856
* call.c (build_over_call): Build a vec of locations of the
arguments before the call to maybe_constant_value, and pass to
check_function_arguments.
* cp-lang.c (LANG_HOOKS_GET_SUBSTRING_LOCATION): Define as
c_get_substring_location.
* parser.c (cp_parser_string_literal): Capture string
concatenation locations.

gcc/ChangeLog:
PR c++/56856
* input.c (expand_location_to_spelling_point): Add param "aspect"
and use rather than hardcoding LOCATION_ASPECT_CARET.
(get_substring_ranges_for_loc): Handle the case of a single token
within a macro expansion.
* input.h (expand_location_to_spelling_point): Add "aspect" param,
defaulting to LOCATION_ASPECT_CARET.

gcc/testsuite/ChangeLog:
PR c++/56856
* g++.dg/ext/builtin4.C: Set expected location for warning to the
correct location within the format string.
* g++.dg/plugin/plugin.exp (plugin_test_list): Add the plugin and
files for testing locations within string literal locations from
the C frontend.
* g++.dg/warn/Wformat-method.C: New test.
* g++.dg/warn/Wformat-pr71863.C: New test.
* g++.dg/warn/Wformat-ranges-c++11.C: New test.
* g++.dg/warn/Wformat-ranges.C: New test, based on
gcc.dg/format/diagnostic-ranges.c.
* gcc.dg/plugin/diagnostic-test-string-literals-1.c
(test_multitoken_macro): Generalize expected output to work with
both C and C++.
* gcc.dg/plugin/diagnostic-test-string-literals-2.c
(test_stringified_token_1): Likewise.
(test_stringified_token_3): Likewise.

From-SVN: r264887

* config/i386/i386.md: Reorder cmpi patterns.

From-SVN: r264886

i386.md (*cmpxf_cc_i387): Remove pattern.

* config/i386/i386.md (*cmpxf_cc_i387): Remove pattern.
(*cmp<mode>_cc_i387): Ditto.
(*cmpu<mode>_cc_i387): Ditto.
(*cmp<X87MODEF:mode>_<SWI24:mode>_cc_i387): Ditto.
* config/i386/i386.c (ix86_expand_fp_compare): Remove
"scratch" argument.
<case IX86_FPCMP_SAHF>: Do not generate pattern with HImode clobber.
Emit x86_sahf_1 pattern.
(ix86_expand_compare): Update call to ix86_expand_fp_compare.
(ix86_expand_carry_flag_compare): Ditto.

From-SVN: r264884

Add some pdp11 target hook definitions for C++

    * config/pdp11/pdp11.c (TARGET_CXX_GUARD_TYPE): Define.
    (TARGET_CXX_CLASS_DATA_ALWAYS_COMDAT): Define.
    (TARGET_CXX_LIBRARY_RTTI_COMDAT): Define.
    (pdp11_guard_type): New function.

From-SVN: r264883

libgo: use inline assembly in favor of call to _xgetbv()

    Use inline assembly in the implementation of internal_cpu.xgetbv as
    opposed to a call to the intrinsic _xgetbv(), since non-gcc compilers
    (e.g. clang) may or may not have support for it.

    Reviewed-on: https://go-review.googlesource.com/c/140137

From-SVN: r264882

Remove -mfloat32, -mfloat64 switches from pdp11 target.

    * config/pdp11/pdp11.h (FLOAT_TYPE_SIZE): Always 32.
    * config/pdp11/pdp11.opt (mfloat32): Remove.
    (mfloat64): Remove.
    * doc/invoke.texi (pdp11 -mfloat32): Remove:
    (pdp11 -mfloat64): Remove.

From-SVN: r264881

testsuite: multiline.exp: implement optional target/xfail selector

gcc/testsuite/ChangeLog:
* lib/multiline.exp (proc dg-end-multiline-output): Check argument
count.  If there's a 3rd argument, use dg-process-target on it,
bailing out, or recording expected failures as "maybe_x".
(proc handle-multiline-outputs): Extract "maybe_x", and use it
to convert pass/fail into xpass/xfail.

From-SVN: r264880

i386.md (*cmpxf_i387): Change operand 2 predicate to reg_or_0_operand.

* config/i386/i386.md (*cmpxf_i387): Change operand 2 predicate
to reg_or_0_operand.  Add "C" constraint.
(*cmpxf_cc_i387): Ditto.
(*cmp<mode>_i387): Change operand 2 predicate
to nonimm_or_0_operand.  Add "C" constraint.
(*cmp<mode>_cc_i387): Ditto.
(*cmp<mode>_0_i387): Remove insn pattern.
(*cmp<mode>_0_cc_i387): Ditto.

From-SVN: r264879

constraints.md ("C"): Do not depend on TARGET_SSE.

* config/i386/constraints.md ("C"): Do not depend on TARGET_SSE.
* config/i386/predicates.md (nonimm_or_0_operand): Rename
from vector_move_operand.  Update all uses.

From-SVN: r264877

PR tree-optimization/87490 - ICE in expand_builtin_strnlen with a constant argument and non-constant bound

gcc/ChangeLog:

PR tree-optimization/87490
* builtins.c (expand_builtin_strnlen): Handle a null data.decl
consistently.

gcc/testsuite/ChangeLog:

PR tree-optimization/87490
* gcc.dg/pr87490.c: New test.
* gcc.dg/warn-strnlen-no-nul-2.c: Same.

From-SVN: r264876

2018-10-05  François Dumont  <fdumont@gcc.gnu.org>

* include/bits/stl_tree.h
(_Rb_tree_iterator<>::operator==): Make inline friend.
(_Rb_tree_iterator<>::operator!=): Likewise.
(_Rb_tree_const_iterator<>::operator==): Likewise.
(_Rb_tree_const_iterator<>::operator!=): Likewise.
(operator==(const _Rb_tree_iterator<>&,
const _Rb_tree_const_iterator&)): Remove.
(operator!=(const _Rb_tree_iterator<>&,
const _Rb_tree_const_iterator&)): Remove.
(operator==(const _Rb_tree<>&, const _Rb_tree<>&)): Make inline friend.
(operator<(const _Rb_tree<>&, const _Rb_tree<>&)): Likewise.
(operator!=(const _Rb_tree<>&, const _Rb_tree<>&)): Likewise and
deprecate.
(operator>(const _Rb_tree<>&, const _Rb_tree<>&)): Likewise.
(operator<=(const _Rb_tree<>&, const _Rb_tree<>&)): Likewise.
(operator>=(const _Rb_tree<>&, const _Rb_tree<>&)): Likewise.
* include/debug/map.h (map<>::erase(const_iterator, const_iterator)):
Compare __victim with _Base::cend().
* include/debug/multimap.h
(multimap<>::erase(const_iterator, const_iterator)): Likewise.
* include/debug/set.h (set<>::erase(const_iterator, const_iterator)):
Compare __victim with _Base::cend().
* include/debug/multiset.h
(multiset<>::erase(const_iterator, const_iterator)): Likewise.

From-SVN: r264875

re PR tree-optimization/71625 (missing strlen optimization on different array initialization style)

2018-10-05  Steve Ellcey  <sellcey@cavium.com>

PR tree-optimization/71625
* /gcc.target/aarch64/vclz.c (test_vclz_s8): Add noinline attribute.
(test_vclz_s16): Ditto.
(test_vclz_s32): Ditto.
(test_vclzq_s8): Ditto.
(test_vclzq_s16): Ditto.
(test_vclzq_s32): Ditto.
(test_vclz_u8): Ditto.
(test_vclz_u16): Ditto.
(test_vclz_u32): Ditto.
(test_vclzq_u8): Ditto.
(test_vclzq_u16): Ditto.
(test_vclzq_u32): Ditto.
* gcc.target/aarch64/vneg_s.c (test_vneg_s8): Ditto.
(test_vneg_s16): Ditto.
(test_vneg_s32): Ditto.
(test_vneg_s64): Ditto.
(test_vnegd_s64): Ditto.
(test_vnegq_s8): Ditto.
(test_vnegq_s16): Ditto.
(test_vnegq_s32): Ditto.
(test_vnegq_s64): Ditto.

From-SVN: r264874

runtime: remove checkgoarm function

    Nothing in libgo calls checkgoarm, and it relies on a variable, goarm,
    that is not set.

    Reviewed-on: https://go-review.googlesource.com/c/140057

From-SVN: r264872

re PR libbacktrace/87529 (libbacktrace API forces users to have memory leaks)

PR libbacktrace/87529
* backtrace.h: Document that backtrace_create_state should be
called only once.

From-SVN: r264871

re PR middle-end/63155 (memory hog)

2018-10-05  Richard Biener  <rguenther@suse.de>

PR tree-optimization/63155
* tree-ssa-ccp.c (ccp_propagate::visit_phi): Avoid excess
vertical space in dumpfiles.
* tree-ssa-propagate.h
(ssa_propagation_engine::process_ssa_edge_worklist): Remove.
* tree-ssa-propagate.c (cfg_blocks_back): New global.
(ssa_edge_worklist_back): Likewise.
(curr_order): Likewise.
(cfg_blocks_get): Remove abstraction.
(cfg_blocks_add): Likewise.
(cfg_blocks_empty_p): Likewise.
(add_ssa_edge): Add to current or next worklist based on
RPO index.
(add_control_edge): Likewise.
(ssa_propagation_engine::process_ssa_edge_worklist): Fold
into ...
(ssa_propagation_engine::ssa_propagate): ... here.  Unify
iteration from CFG and SSA edge worklist so we process
everything in RPO order, prioritizing forward progress
over iteration.
(ssa_prop_init): Allocate new worklists, do not dump
immediate uses.
(ssa_prop_fini): Free new worklists.

From-SVN: r264869

tree-core.h (tree_block::abstract_flag): Remove.

2018-10-05  Richard Biener  <rguenther@suse.de>

* tree-core.h (tree_block::abstract_flag): Remove.
(tree_block::block_num): Make full 32bits.
* tree.def (BLOCK): Remove docs about BLOCK_ABSTRACT.
* tree.h (BLOCK_ABSTRACT): Remove.
* dwarf2out.c (gen_lexical_block_die): Remove dead code
resulting from BLOCK_ABSTRACT being always false.
(gen_inlined_subroutine_die): Likewise.
(gen_block_die): Likewise.
* tree.c (block_ultimate_origin): Likewise.
* tree-pretty-print.c (dump_block_node): Remove code dealing
with BLOCK_ABSTRACT.
* tree-ssa-live.c (dump_scope_block): Likewise.
* tree-streamer-in.c (unpack_ts_block_value_fields): Likewise.
* tree-streamer-out.c (pack_ts_block_value_fields): Likewise.

From-SVN: r264868

i386.c (ix86_add_stmt_cost): When scalar cost is asked for initialize mode to the component mode of the...

2018-10-05   Richard Biener  <rguenther@suse.de>

* config/i386/i386.c (ix86_add_stmt_cost): When scalar cost
is asked for initialize mode to the component mode of the
vector type.

From-SVN: r264866

i386: Don't pass -msse2avx to assembler for -mavx

With

gcc -O2 -fPIC -flto -g -c -o a.o a.c
gcc -O2 -fPIC -flto -g -mavx   -c -o b.o b.c
gcc -shared -O2 -fPIC -flto -g -o lib1.so a.o b.o

LTO correctly generates AVX for b.o and SSE for a.o.  But the GCC driver
passes -msse2avx to assembler, which encodes SSE instructions as AVX
instructions.  We shouldn't pass -msse2avx to assembler for -mavx.

PR target/87522
* config/i386/gnu-user.h (ASM_SPEC): Don't pass -msse2avx to
assembler for -mavx.
* config/i386/gnu-user64.h (ASM_SPEC): Likewise.

From-SVN: r264864

rs6000: Various fixes for the new fpscr builtins (PR87509)

With these fixes all testcases test clean for me, both on
powerpc64-linux {-m32,-m64} and on powerpc64le-linux, with all
relevant -mcpu= settings.

PR target/87509
* config/rs6000/rs6000-builtin.def (RS6000_BUILTIN_SET_FPSCR_DRN): Use
RS6000_BTM_DFP.
* config/rs6000/rs6000.md (rs6000_set_fpscr_rn): Require the operand
to be DImode.  When using mffscrn, force the operand to a register.

gcc/testsuite/
PR target/87509
* gcc.target/powerpc/test_fpscr_drn_builtin.c: Use hard_dfp instead
of dfp_hw.  Don't include <altivec.h>.
* gcc.target/powerpc/test_fpscr_drn_builtin_error.c: Ditto.  Require
lp64.
* gcc.target/powerpc/test_fpscr_rn_builtin.c: Don't include <altivec.h>.
* gcc.target/powerpc/test_fpscr_rn_builtin_error.c: Ditto.
* gcc.target/powerpc/test_mffsl.c: Ditto.

From-SVN: r264863

re PR testsuite/87487 (New test case gfortran.dg/deferred_character_24.f90 in r264721 fails on big endian)

2018-10-05  Paul Thomas  <pault@gcc.gnu.org>

PR fortran/87487
* trans-decl.c (gfc_get_symbol_decl): Make sure that deferred
character length pointer initializer has the right type to fix
problem with deferred_character_24.f90 on big endian.

From-SVN: r264862

Daily bump.

From-SVN: r264860

contrib: unused_functions.py: Handle archives

one can now use verbatim the arguments used by the driver invocation to
link e.g. cc1.

2018-10-04  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>

* unused_functions.py: Handle archive files.

From-SVN: r264856

i386.md (*fop_<X87MODEF:mode>_2_i387): Macroize insn from *fop_<MODEF:mode>_2_i387 and *fop_xf_2_i387 using X87MODEF...

* config/i386/i386.md (*fop_<X87MODEF:mode>_2_i387): Macroize insn
from *fop_<MODEF:mode>_2_i387 and *fop_xf_2_i387 using
X87MODEF mode iterator.
(*fop_<X87MODEF:mode>_3_i387): Macroize insn from
*fop_<MODEF:mode>_3_i387 and *fop_xf_3_i387 using
X87MODEF mode iterator.

From-SVN: r264855

invoke.texi (-Wno-prio-ctor-dtor): Document new warning -Wno-prio-ctor-dtor.

* doc/invoke.texi (-Wno-prio-ctor-dtor): Document new warning
-Wno-prio-ctor-dtor.

* c-attribs.c (get_priority): Add a warning flag warn_prio_ctor_dtor
to generate constructor destructor priority warning.
* c.opt (-Wprio-ctor-dtor): New option.

* c-c++-common/Wprio-ctor-dtor.c: New test.

From-SVN: r264853

Report vectorization problems via a new opt_problem class

This is v3 of the patch; previous versions were:
  v2: https://gcc.gnu.org/ml/gcc-patches/2018-07/msg00446.html
  v1: https://gcc.gnu.org/ml/gcc-patches/2018-06/msg01462.html

This patch introduces a class opt_problem, along with wrapper
classes for bool (opt_result) and for pointers (e.g. opt_loop_vec_info
for loop_vec_info).

opt_problem instances are created when an optimization problem
is encountered, but only if dump_enabled_p.  They are manually
propagated up the callstack, and are manually reported at the
"top level" of an optimization if dumping is enabled, to give the user
a concise summary of the problem *after* the failure is reported.
In particular, the location of the problematic statement is
captured and emitted, rather than just the loop's location.

For example:

no-vfa-vect-102.c:24:3: missed: couldn't vectorize loop
no-vfa-vect-102.c:27:7: missed: statement clobbers memory: __asm__ __volatile__("" :  :  : "memory");

Changed in v3:
* This version bootstraps and passes regression testing (on
  x86_64-pc-linux-gnu).
* added selftests, to exercise the opt_problem machinery
* removed the "bool to opt_result" ctor, so that attempts to
  use e.g. return a bool from an opt_result-returning function
  will fail at compile time
* use formatted printing within opt_problem ctor to replace the
  various dump_printf_loc calls
* dropped i18n
* changed the sense of vect_analyze_data_ref_dependence's return
  value (see the ChangeLog)
* add MSG_PRIORITY_REEMITTED, so that -fopt-info can show the
  messages, without them messing up the counts in scan-tree-dump-times
  in DejaGnu tests

gcc/ChangeLog:
* Makefile.in (OBJS): Add opt-problem.o.
* dump-context.h: Include "selftest.h.
(selftest::temp_dump_context): New forward decl.
(class dump_context): Make friend of class
selftest::temp_dump_context.
(dump_context::dump_loc_immediate): New decl.
(class dump_pretty_printer): Move here from dumpfile.c.
(class temp_dump_context): Move to namespace selftest.
(temp_dump_context::temp_dump_context): Add param
"forcibly_enable_dumping".
(selftest::verify_dumped_text):
(ASSERT_DUMPED_TEXT_EQ): Move here from dumpfile.c.
(selftest::verify_item):
(ASSERT_IS_TEXT): Move here from dumpfile.c.
(ASSERT_IS_TREE): Likewise.
(ASSERT_IS_GIMPLE): Likewise.
* dumpfile.c (dump_context::dump_loc): Move immediate dumping
to...
(dump_context::dump_loc_immediate): ...this new function.
(class dump_pretty_printer): Move to dump-context.h.
(dump_switch_p_1): Don't enable MSG_PRIORITY_REEMITTED.
(opt_info_switch_p_1): Enable MSG_PRIORITY_REEMITTED.
(temp_dump_context::temp_dump_context): Move to "selftest"
namespace.  Add param "forcibly_enable_dumping", and use it to
conditionalize the use of m_pp;
(selftest::verify_dumped_text): Make non-static.
(ASSERT_DUMPED_TEXT_EQ): Move to dump-context.h.
(selftest::verify_item): Make non-static.
(ASSERT_IS_TEXT): Move to dump-context.h.
(ASSERT_IS_TREE): Likewise.
(ASSERT_IS_GIMPLE): Likewise.
(selftest::test_capture_of_dump_calls): Pass "true" for new
param of temp_dump_context.
* dumpfile.h (enum dump_flag): Add MSG_PRIORITY_REEMITTED, adding
it to MSG_ALL_PRIORITIES.  Update values of TDF_COMPARE_DEBUG and
TDF_COMPARE_DEBUG.
* opt-problem.cc: New file.
* opt-problem.h: New file.
* optinfo-emit-json.cc
(selftest::test_building_json_from_dump_calls): Pass "true" for
new param of temp_dump_context.
* optinfo.cc (optinfo_kind_to_dump_flag): New function.
(optinfo::emit_for_opt_problem): New function.
(optinfo::emit): Clarity which emit_item is used.
* optinfo.h (optinfo::get_dump_location): New accessor.
(optinfo::emit_for_opt_problem): New decl.
(optinfo::emit): Make const.
* selftest-run-tests.c (selftest::run_tests): Call
selftest::opt_problem_cc_tests.
* selftest.h (selftest::opt_problem_cc_tests): New decl.
* tree-data-ref.c (dr_analyze_innermost): Convert return type from
bool to opt_result, converting fprintf messages to
opt_result::failure_at calls.  Add "stmt" param for use by the
failure_at calls.
(create_data_ref): Pass "stmt" to the dr_analyze_innermost call.
(runtime_alias_check_p): Convert return type from bool to
opt_result, converting dump_printf calls to
opt_result::failure_at, using the statement DDR_A for their
location.
(find_data_references_in_stmt): Convert return type from bool to
opt_result, converting "return false" to opt_result::failure_at
with a new message.
* tree-data-ref.h: Include "opt-problem.h".
(dr_analyze_innermost): Convert return type from bool to opt_result,
and add a const gimple * param.
(find_data_references_in_stmt): Convert return type from bool to
opt_result.
(runtime_alias_check_p): Likewise.
* tree-predcom.c (find_looparound_phi): Pass "init_stmt" to
dr_analyze_innermost.
* tree-vect-data-refs.c (vect_mark_for_runtime_alias_test):
Convert return type from bool to opt_result, adding a message for
the PARAM_VECT_MAX_VERSION_FOR_ALIAS_CHECKS zero case.
(vect_analyze_data_ref_dependence): Convert return type from bool
to opt_result.  Change sense of return type from "false"
effectively meaning "no problems" to "false" meaning a problem,
so that "return false" becomes "return opt_result::success".
Convert "return true" calls to opt_result::failure_at, using
the location of statement A rather than vect_location.
(vect_analyze_data_ref_dependences): Convert return type from bool
to opt_result.
(verify_data_ref_alignment): Likewise, converting dump_printf_loc
calls to opt_result::failure_at, using the stmt location rather
than vect_location.
(vect_verify_datarefs_alignment): Convert return type from bool
to opt_result.
(vect_enhance_data_refs_alignment): Likewise.  Split local "stat"
into multiple more-tightly-scoped copies.
(vect_analyze_data_refs_alignment): Convert return type from bool
to opt_result.
(vect_analyze_data_ref_accesses): Likewise, converting a
"return false" to a "return opt_result::failure_at", adding a
new message.
(vect_prune_runtime_alias_test_list): Convert return type from
bool to opt_result, converting dump_printf_loc to
opt_result::failure_at.  Add a %G to show the pertinent statement,
and use the stmt's location rather than vect_location.
(vect_find_stmt_data_reference): Convert return type from
bool to opt_result, converting dump_printf_loc to
opt_result::failure_at, using stmt's location.
(vect_analyze_data_refs):  Convert return type from bool to
opt_result.  Convert "return false" to "return
opt_result::failure_at", adding messages as needed.
* tree-vect-loop.c (vect_determine_vf_for_stmt_1): Convert return
type from bool to opt_result.
(vect_determine_vf_for_stmt): Likewise.
(vect_determine_vectorization_factor): Likewise, converting
dump_printf_loc to opt_result::failure_at, using location of phi
rather than vect_location.
(vect_analyze_loop_form_1): Convert return type from bool to
opt_result, converting dump_printf_loc calls, retaining the use of
vect_location.
(vect_analyze_loop_form): Convert return type from loop_vec_info
to opt_loop_vec_info.
(vect_analyze_loop_operations): Convert return type from bool to
opt_result, converting dump_printf_loc calls, using the location
of phi/stmt rather than vect_location where available.  Convert
various "return false" to "return opt_result::failure_at" with
"unsupported phi" messages.
(vect_get_datarefs_in_loop): Convert return type from bool to
opt_result.  Add a message for the
PARAM_LOOP_MAX_DATAREFS_FOR_DATADEPS failure.
(vect_analyze_loop_2): Convert return type from bool to
opt_result.  Ensure "ok" is set to a opt_result::failure_at before
each "goto again;", adding new messages where needed.
Add "unsupported grouped {store|load}" messages.
(vect_analyze_loop): Convert return type from loop_vec_info to
opt_loop_vec_info.
* tree-vect-slp.c (vect_analyze_slp): Convert return type from
bool to opt_result.
* tree-vect-stmts.c (process_use): Likewise, converting
dump_printf_loc call and using stmt location, rather than
vect_location.
(vect_mark_stmts_to_be_vectorized): Likeise.
(vect_analyze_stmt): Likewise, adding a %G.
(vect_get_vector_types_for_stmt): Convert return type from bool to
opt_result, converting dump_printf_loc calls and using stmt
location, rather than vect_location.
(vect_get_mask_type_for_stmt): Convert return type from tree to
opt_tree, converting dump_printf_loc calls and using stmt location.
* tree-vectorizer.c: Include "opt-problem.h.
(try_vectorize_loop_1): Flag "Analyzing loop at" dump message as
MSG_PRIORITY_INTERNALS.  Convert local "loop_vinfo" from
loop_vec_info to opt_loop_vec_info.  If if fails, and dumping is
enabled, use it to report at the top level "couldn't vectorize
loop" followed by the problem.
* tree-vectorizer.h (opt_loop_vec_info): New typedef.
(vect_mark_stmts_to_be_vectorized): Convert return type from bool
to opt_result.
(vect_analyze_stmt): Likewise.
(vect_get_vector_types_for_stmt): Likewise.
(tree vect_get_mask_type_for_stmt): Likewise.
(vect_analyze_data_ref_dependences): Likewise.
(vect_enhance_data_refs_alignment): Likewise.
(vect_analyze_data_refs_alignment): Likewise.
(vect_verify_datarefs_alignment): Likewise.
(vect_analyze_data_ref_accesses): Likewise.
(vect_prune_runtime_alias_test_list): Likewise.
(vect_find_stmt_data_reference): Likewise.
(vect_analyze_data_refs): Likewise.
(vect_analyze_loop): Convert return type from loop_vec_info to
opt_loop_vec_info.
(vect_analyze_loop_form): Likewise.
(vect_analyze_slp): Convert return type from bool to opt_result.

gcc/testsuite/ChangeLog:
* gcc.dg/vect/nodump-vect-opt-info-2.c: New test.
* gcc.dg/vect/vect-alias-check-4.c: Add "-fopt-info-vec-all" to
dg-additional-options.  Add dg-message and dg-missed directives
to verify that -fopt-info messages are written at the correct
locations.

From-SVN: r264852

Add -fopt-info-internals

This patch introduces a verbosity level to dump messages:
"user-facing" vs "internals".

By default, messages at the top-level dump scope are "user-facing",
whereas those that are in nested scopes are implicitly "internals",
and are filtered out by -fopt-info unless a new "-internals" sub-option
of "-fopt-info" is supplied (intended purely for use by GCC developers).
Dumpfiles are unaffected by the change.

Given that the vectorizer is the only subsystem using AUTO_DUMP_SCOPE
(via DUMP_VECT_SCOPE), this only affects the vectorizer.

Filtering out these implementation-detail messages goes a long way
towards making -fopt-info-vec-all more accessible to advanced end-users;
the follow-up patch restores the most pertinent missing details.

gcc/ChangeLog:
* doc/invoke.texi (-fopt-info): Document new "internals"
sub-option.
* dump-context.h (dump_context::apply_dump_filter_p): New decl.
* dumpfile.c (dump_options): Update for renaming of MSG_ALL to
MSG_ALL_KINDS.
(optinfo_verbosity_options): Add "internals".
(kind_as_string): Update for renaming of MSG_ALL to MSG_ALL_KINDS.
(dump_context::apply_dump_filter_p): New member function.
(dump_context::dump_loc): Use apply_dump_filter_p rather than
explicitly masking the dump_kind.
(dump_context::begin_scope): Increment the scope depth first.  Use
apply_dump_filter_p rather than explicitly masking the dump_kind.
(dump_context::emit_item): Use apply_dump_filter_p rather than
explicitly masking the dump_kind.
(dump_dec): Likewise.
(dump_hex): Likewise.
(dump_switch_p_1): Default to MSG_ALL_PRIORITIES.
(opt_info_switch_p_1): Default to MSG_PRIORITY_USER_FACING.
(opt_info_switch_p): Update handling of default
MSG_OPTIMIZED_LOCATIONS to cope with default of
MSG_PRIORITY_USER_FACING.
(dump_basic_block): Use apply_dump_filter_p rather than explicitly
masking the dump_kind.
(selftest::test_capture_of_dump_calls): Update test_dump_context
instances to use MSG_ALL_KINDS | MSG_PRIORITY_USER_FACING rather
than MSG_ALL.  Generalize scope test to be run at all four
combinations of with/without MSG_PRIORITY_USER_FACING and
MSG_PRIORITY_INTERNALS, adding examples of explicit priority
for each of the two values.
* dumpfile.h (enum dump_flag): Add comment about the MSG_* flags.
Rename MSG_ALL to MSG_ALL_KINDS.  Add MSG_PRIORITY_USER_FACING,
MSG_PRIORITY_INTERNALS, and MSG_ALL_PRIORITIES, updating the
values for TDF_COMPARE_DEBUG and TDF_ALL_VALUES.
(AUTO_DUMP_SCOPE): Add a note to the comment about the interaction
with MSG_PRIORITY_*.
* tree-vect-loop-manip.c (vect_loop_versioning): Mark versioning
dump messages as MSG_PRIORITY_USER_FACING.
* tree-vectorizer.h (DUMP_VECT_SCOPE): Add a note to the comment
about the interaction with MSG_PRIORITY_*.

gcc/testsuite/ChangeLog:
* gcc.dg/plugin/dump-1.c: Update expected output for test_scopes
due to "-internals" not being selected.
* gcc.dg/plugin/dump-2.c: New test, based on dump-1.c, with
"-internals" added to re-enable the output from test_scopes.
* gcc.dg/plugin/plugin.exp (plugin_test_list): Add dump-2.c.

From-SVN: r264851

varasm.c (output_constant): Add new parameter merge_strings.

2018-10-04  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * varasm.c (output_constant): Add new parameter merge_strings.
        Make strings properly zero terminated in merge string sections.
        (mergeable_string_section): Don't fail if the last char is non-zero.
        (assemble_variable_contents): Handle merge string sections.
        (assemble_variable): Likewise.
        (assemble_constant_contents): Likewise.
        (output_constant_def_contents): Likewise.
        (output_constructor_array_range,
        output_constructor_regular_field): Adjust call to output_constant.
        (output_object_block): Adjust call to assemble_constant_contents
        and assemble_variable_contents.

testsuie:
2018-10-04  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * gnat.dg/string_merge1.adb: New test.
        * gnat.dg/string_merge2.adb: New test.
        * gcc.dg/merge-all-constants-1.c: Adjust test.
        * gcc.dg/merge-all-constants-2.c: New test.

From-SVN: r264850

Revert "Never reload fixed form constraints memory operand"

This reverts commit r264834.

2018-10-04  Thomas Preud'homme  <thomas.preudhomme@linaro.org>

    Revert
    2018-10-04  Thomas Preud'homme  <thomas.preudhomme@linaro.org>

    gcc/
    * lra-constraints.c (process_address_1): Bail out for all
    satisfied fixed constraints.

From-SVN: r264849

List myself as "libgomp (OpenACC)" and "OpenACC" maintainer

* MAINTAINERS: List myself as "libgomp (OpenACC)" and "OpenACC"
maintainer.

From-SVN: r264848

[PATCH, rs6000] Fix expected error output for test case.

r264355 removed some spelling suggestions including for "bool" as used
in this test case.

Bootstrapped and tested on powerpc64le-unknown-linux-gnu and
powerpc64be-unknown-linux-gnu with no regressions.  Is this ok for trunk?

2018-10-04  Bill Seurer  <seurer@linux.vnet.ibm.com>

PR target/87486
* gcc.target/powerpc/undef-bool-2.c: Fix expected error output.

Index: gcc/testsuite/gcc.target/powerpc/undef-bool-2.c
===================================================================
--- gcc/testsuite/gcc.target/powerpc/undef-bool-2.c (revision 264812)
+++ gcc/testsuite/gcc.target/powerpc/undef-bool-2.c (working copy)
@@ -9,7 +9,7 @@

 #include <xmmintrin.h>

-bool foo (int x) /* { dg-error "unknown type name 'bool'; did you mean '_Bool'?" } */
+bool foo (int x) /* { dg-error "unknown type name 'bool'" } */
 {
   return x == 2;
 }

From-SVN: r264847

Error about alias attribute with body definition (PR c/87483).

2018-10-04  Martin Liska  <mliska@suse.cz>

PR c/87483
* cgraphunit.c (process_function_and_variable_attributes):
Warn about a function with alias attribute and a body.
2018-10-04  Martin Liska  <mliska@suse.cz>

PR c/87483
* gcc.dg/pr87483.c: New test.

From-SVN: r264846

Redirect call within specific target attribute among MV clones (PR ipa/82625).

2018-10-04  Martin Liska  <mliska@suse.cz>

PR ipa/82625
* multiple_target.c (redirect_to_specific_clone): New function.
(ipa_target_clone): Use it.
* tree-inline.c: Fix comment.
2018-10-04  Martin Liska  <mliska@suse.cz>

PR ipa/82625
* g++.dg/ext/pr82625.C: New test.

From-SVN: r264845

Fix -fopt-info for plugin passes

Attempts to dump via -fopt-info from a plugin pass fail, due
to the dfi->alt_state for such passes never being set.

This is because the -fopt-info options were being set up per-pass
during option-parsing (via gcc::dump_manager::opt_info_enable_passes),
but this data was not retained or used it for passes created later
(for plugins and target-specific passes).

This patch fixes the issue by storing the -fopt-info options into
gcc::dump_manager, refactoring the dfi-setup code out of
opt_info_enable_passes, and reusing it for such passes, fixing the
issue.  The patch adds a demo plugin to test that dumping from a
plugin works.

gcc/ChangeLog:
* dumpfile.c (gcc::dump_manager::dump_manager): Initialize new
fields.
(gcc::dump_manager::~dump_manager): Free m_optinfo_filename.
(gcc::dump_manager::register_pass): New member function, adapted
from loop body in gcc::pass_manager::register_pass, adding a
call to update_dfi_for_opt_info.
(gcc::dump_manager::opt_info_enable_passes): Store the
-fopt-info options into the new fields.  Move the loop
bodies into...
(gcc::dump_manager::update_dfi_for_opt_info): ...this new member
function.
* dumpfile.h (struct opt_pass): New forward decl.
(gcc::dump_manager::register_pass): New decl.
(gcc::dump_manager::update_dfi_for_opt_info): New decl.
(class gcc::dump_manager): Add fields "m_optgroup_flags",
"m_optinfo_flags", and "m_optinfo_filename".
* passes.c (gcc::pass_manager::register_pass): Move all of the
dump-handling code to gcc::dump_manager::register_pass.

gcc/testsuite/ChangeLog:
* gcc.dg/plugin/dump-1.c: New test.
* gcc.dg/plugin/dump_plugin.c: New test plugin.
* gcc.dg/plugin/plugin.exp (plugin_test_list): Add the above.

From-SVN: r264844

Add missing ChangeLog entry for previous commit

From-SVN: r264843

re PR rtl-optimization/87466 (IRA and LRA spill all pseudos that are live across setjmp calls)

gcc/
PR rtl-optimization/87466
* target.def (setjmp_preserves_nonvolatile_regs_p): New target hook.
* doc/tm.texi.in (TARGET_SETJMP_PRESERVES_NONVOLATILE_REGS_P): New hook.
* doc/tm.texi: Regenerate.
* ira-lives.c (process_bb_node_lives): Use the new target hook.
* lra-lives.c (process_bb_lives): Likewise.
* config/rs6000/rs6000.c (TARGET_SETJMP_PRESERVES_NONVOLATILE_REGS_P):
Define.

gcc/testsuite/
PR rtl-optimization/87466
* gcc.target/powerpc/pr87466.c: New test.

From-SVN: r264842

Remove superfluous assignment in add_params.

This fixes the superfluous assignment that Coverity reported in add_params,
and changes the starting index from 0 to num_params - n in order for it to
work properly if add_params is called multiple times.

validate_params calls error so it doesn't matter that we don't check the
results here.  The results is checked in individual parameter updates after
front-end initialization.

2018-10-04  Tamar Christina  <tamar.christina@arm.com>

* params.c (add_params): Fix initialization.

From-SVN: r264841

Fix divergence in indirect profiling (PR gcov-profile/84107).

2018-10-04  Martin Liska  <mliska@suse.cz>

PR gcov-profile/84107
* tree-profile.c (init_ic_make_global_vars):
Remove ic_void_ptr_var and ic_gcov_type_ptr_var.
Come up with new ic_tuple* variables.  Emit
__gcov_indirect_call{,_topn} variables.
(gimple_gen_ic_profiler): Access the variable
and emit gimple.
(gimple_gen_ic_func_profiler): Access
__gcov_indirect_call.callee field.
(gimple_init_gcov_profiler): Use ptr_type_node.
* value-prof.c (gimple_ic): Use ptr_type_node.
2018-10-04  Martin Liska  <mliska@suse.cz>

PR gcov-profile/84107
* libgcov-profiler.c (__gcov_indirect_call):
Change type to indirect_call_tuple.
(struct indirect_call_tuple): New struct.
(__gcov_indirect_call_topn_profiler): Change type.
(__gcov_indirect_call_profiler_v2): Use the new
variables.
* libgcov.h (struct indirect_call_tuple): New struct
definition.

From-SVN: r264840

[C++ PATCH] String concatenation is a thing

https://gcc.gnu.org/ml/gcc-patches/2018-10/msg00248.html
* lang-specs.h: Use string contatenation, not line splicing.

From-SVN: r264839

re PR tree-optimization/85787 (malloc_candidate_p fails to detect malloc attribute on nested phis)

2018-10-04  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

PR tree-optimization/85787
* ipa-pure-const.c (malloc_candidate_p_1): Move most of malloc_candidate_p
into this function and add support for detecting multiple phis.
(DUMP_AND_RETURN): Move from malloc_candidate_p into top-level macro.

testsuite/
* gcc.dg/ipa/propmalloc-4.c: New test.

From-SVN: r264838

contrib: Add unused_functions.py script

For a set of object-files, determine symbols that are
 - public but should be static

2018-10-04  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>

* unused_functions.py: New file.

From-SVN: r264837

cunroll-15.c: Add XFAILs for arm and powerpc.

2018-10-04  Richard Biener  <rguenther@suse.de>

* gcc.dg/tree-ssa/cunroll-15.c: Add XFAILs for arm and powerpc.

From-SVN: r264836

Call ultimate_alias_target for node being inlined (PR ipa/87491).

2018-10-04  Martin Liska  <mliska@suse.cz>

PR ipa/87491
* ipa-inline.c (inline_to_all_callers_1):
Call ultimate_alias_target for node being inlined.

From-SVN: r264835

Never reload fixed form constraints memory operand

The unconditional reload of address operand for recognized instruction
in process_address_1 prevent the patch fixing PR85434 from working as
expected. The code in that patch attempts to control which registers are
used to make PIC access but the reload performed by process_address_1
will use generic PIC access. This patch removes the test for the
instruction to be unrecognized to do the reload, thus always avoiding to
reload address operand for fixed constraints (such as "X" used in the
patch).

2018-10-04  Thomas Preud'homme  <thomas.preudhomme@linaro.org>

    gcc/
    * lra-constraints.c (process_address_1): Bail out for all
    satisfied fixed constraints.

From-SVN: r264834

gimple-ssa-sprintf.c (format_string): Do not hardcode size of target's wchar_t.

        * gimple-ssa-sprintf.c (format_string): Do not hardcode size of
        target's wchar_t.
        * tree.c (get_typenode_from_name): Moved from fortran/trans-types.c.
        * tree.h (get_typenode_from_name): Prototype.

        * trans-types.c (get_typenode_from_name): Moved into gcc/tree.c.

From-SVN: r264833

Daily bump.

From-SVN: r264831

i386.md (*cmp<X87MODEF:mode>_<SWI24:mode>_i387): Change operand 2 predicate to nonimmediate_operand.

* config/i386/i386.md (*cmp<X87MODEF:mode>_<SWI24:mode>_i387):
Change operand 2 predicate to nonimmediate_operand.
(*cmp<X87MODEF:mode>_<SWI24:mode>_cc_i387): Ditto.

From-SVN: r264827

* go.test/go-test.exp (go-set-goarch): Use amd64p32 on x32.

From-SVN: r264825

libgcc2.c (isnan): Use __builtin_isnan.

* libgcc2.c (isnan): Use __builtin_isnan.
(isfinite): Use __builtin_isfinite.
(isinf): Use __builtin_isinf.

From-SVN: r264823

gimple-ssa-sprintf.c (struct fmtresult): Add new member and initialize it.

* gimple-ssa-sprintf.c (struct fmtresult): Add new member and
initialize it.
(get_string_length): Detect unterminated arrays.
(format_string): Same.
(format_directive): Warn about unterminated arrays.
(handle_gimple_call): Mark statements with no_warning as needed.

* gcc.dg/warn-sprintf-no-nul.c: New test.

Co-Authored-By: Jeff Law <law@redhat.com>
From-SVN: r264822

RISC-V: Add macro for ilp32e ABI.  Cleanup white space.

gcc/
* config/riscv/riscv-c.c (riscv_cpu_cpp_builtins): For ABI_ILP32E,
also define __riscv_abi_rve.  Delete trailing white space.

From-SVN: r264821

Enable LRA register allocator for PDP11.

    Enable LRA register allocator for PDP11. -- missed checking in
    ChangeLog.

From-SVN: r264820

Enable LRA register allocator for PDP11.

    * config/pdp11/constraints.md (Q): Use define_memory_constraints.
    (R): Likewise.
    (D): Likewise.
    * config/pdp11/pdp11.c (pdp11_lra_p): New function.
    * config/pdp11/pdp11.opt (-mlra): New option.
    * doc/invoke.texi (PDP-11 Options): Document -mlra.

From-SVN: r264819

i386.md (*<absneg:code>extendsfdf2): Remove.

* config/i386/i386.md (*<absneg:code>extendsfdf2): Remove.
(*<absneg:code>extend<mode>xf2): Ditto.

From-SVN: r264818

re PR tree-optimization/87415 (wrong code at -O1 and above on x86_64-linux-gnu)

PR tree-optimization/87415
* tree-vrp.c (set_value_range_with_overflow): Special case one bit
precision fields.

From-SVN: r264817

gimple-fold.c (get_range_strlen): Only set *nonstr when an unterminated string is discovered.

* gimple-fold.c (get_range_strlen): Only set *nonstr when
an unterminated string is discovered.  Bubble up range
even for unterminated strings.
(gimple_fold_builtin_strlen): Do not fold if get_range_strlen
indicates the string was not terminated via NONSTR.

From-SVN: r264816

tree-vrp.c (extract_range_from_unary_expr): Special case all pointer conversions.

* tree-vrp.c (extract_range_from_unary_expr): Special case all
pointer conversions.
Do not do anything special for anti-ranges.

From-SVN: r264815

Implement P0840, language support for empty objects.

The [[no_unique_address]] attribute on a non-static data member
enables the equivalent of the empty base optimization.

gcc/cp/
* tree.c (handle_no_unique_addr_attribute): New.
(cxx_attribute_table): Add [[no_unique_address]].
* class.c (field_poverlapping_p): New.
(layout_class_type): Check it.  Adjust DECL_SIZE of potentially
overlapping fields.
(layout_empty_base_or_field): Rename from layout_empty_base, handle
FIELD_DECL as well.
(build_base_field, record_subobject_offsets): Adjust.
c-family/
* c-lex.c (c_common_has_attribute): Add no_unique_address.

From-SVN: r264813

PR libstdc++/59439 optimize uses of classic ("C") std::locale

The global locale::_Impl that represents the "C" locale is never
destroyed, so there is no need to keep track of reference count updates
for that object. This greatly reduce contention between threads that
refer to the classic locale. Since the global std::locale initially uses
the classic locale, this benefits the common case for any code using the
global locale, such as construction/destruction of iostream objects.

All these updates are done inside libstdc++.so so there's no need to
worry about users' objects having inlined old versions of the code which
still update the reference count for the classic locale.

PR libstdc++/59439
* src/c++98/locale.cc (locale::locale(const locale&)): Bypass
reference count updates for the classic locale.
(locale::~locale()): Likewise.
(locale::operator=(const locale&)): Likewise.
* src/c++98/locale_init.cc (locale::locale()): Likewise.
(locale::global(const locale&)): Likewise.

From-SVN: r264811

Fix ARM_TARGET2_DWARF_FORMAT for vxworks

2018-10-03  Jérôme Lambourg  <lambourg@adacore.com>

* config/arm/vxworks.h (ARM_TARGET2_DWARF_FORMAT): Adjust to
DW_EH_PE_pcrel | DW_EH_PE_indirect for RTPs.

From-SVN: r264808

Properly mark lambdas in GCOV (PR gcov-profile/86109).

2018-10-03  Martin Liska  <mliska@suse.cz>

PR gcov-profile/86109
* coverage.c (coverage_begin_function): Do not
mark lambdas as artificial.
* tree-core.h (struct GTY): Remove tm_clone_flag
and introduce new lambda_function.
* tree.h (DECL_LAMBDA_FUNCTION): New macro.
2018-10-03  Martin Liska  <mliska@suse.cz>

PR gcov-profile/86109
* parser.c (cp_parser_lambda_declarator_opt):
Set DECL_LAMBDA_FUNCTION for lambdas.
2018-10-03  Martin Liska  <mliska@suse.cz>

PR gcov-profile/86109
* g++.dg/gcov/pr86109.C: New test.

From-SVN: r264806

2018-10-03  François Dumont  <fdumont@gcc.gnu.org>

* include/debug/map.h
(map<>::emplace<>(_Args&&...)): Use C++11 direct initialization.
(map<>::emplace_hint<>(const_iterator, _Args&&...)): Likewise.
(map<>::insert(value_type&&)): Likewise.
(map<>::insert<>(_Pair&&)): Likewise.
(map<>::insert<>(const_iterator, _Pair&&)): Likewise.
(map<>::try_emplace): Likewise.
(map<>::insert_or_assign): Likewise.
(map<>::insert(node_type&&)): Likewise.
(map<>::insert(const_iterator, node_type&&)): Likewise.
(map<>::erase(const_iterator)): Likewise.
(map<>::erase(const_iterator, const_iterator)): Likewise.
* include/debug/multimap.h
(multimap<>::emplace<>(_Args&&...)): Use C++11 direct initialization.
(multimap<>::emplace_hint<>(const_iterator, _Args&&...)): Likewise.
(multimap<>::insert<>(_Pair&&)): Likewise.
(multimap<>::insert<>(const_iterator, _Pair&&)): Likewise.
(multimap<>::insert(node_type&&)): Likewise.
(multimap<>::insert(const_iterator, node_type&&)): Likewise.
(multimap<>::erase(const_iterator)): Likewise.
(multimap<>::erase(const_iterator, const_iterator)): Likewise.
* include/debug/set.h
(set<>::emplace<>(_Args&&...)): Use C++11 direct initialization.
(set<>::emplace_hint<>(const_iterator, _Args&&...)): Likewise.
(set<>::insert(value_type&&)): Likewise.
(set<>::insert<>(const_iterator, value_type&&)): Likewise.
(set<>::insert(const_iterator, node_type&&)): Likewise.
(set<>::erase(const_iterator)): Likewise.
(set<>::erase(const_iterator, const_iterator)): Likewise.
* include/debug/multiset.h
(multiset<>::emplace<>(_Args&&...)): Use C++11 direct initialization.
(multiset<>::emplace_hint<>(const_iterator, _Args&&...)): Likewise.
(multiset<>::insert<>(value_type&&)): Likewise.
(multiset<>::insert<>(const_iterator, value_type&&)): Likewise.
(multiset<>::insert(node_type&&)): Likewise.
(multiset<>::insert(const_iterator, node_type&&)): Likewise.
(multiset<>::erase(const_iterator)): Likewise.
(multiset<>::erase(const_iterator, const_iterator)): Likewise.

From-SVN: r264805

Daily bump.

From-SVN: r264804

* io/close.c [!HAVE_UNLINK_OPEN_FILE]: Include <string.h>.

From-SVN: r264800

re PR target/87474 (ICE in extract_insn, at recog.c:2305)

2018-10-02  Aaron Sawdey  <acsawdey@linux.ibm.com>

PR target/87474
* config/rs6000/rs6000-string.c (expand_strn_compare): Check that both
P8_VECTOR and VSX are enabled.

From-SVN: r264799

internal/bytealg: support systems that don't have memmem

    Reviewed-on: https://go-review.googlesource.com/138839

From-SVN: r264798

S/390: Support IBM z14 Model ZR1 with -march=native

This adds the CPU model number of the IBM z14 Model ZR1 machine to
-march=native.  The patch doesn't actually change anything since we
anyway default to z14 for unknown CPU model numbers.  So this is just
for the sake of completeness.

2018-10-02  Andreas Krebbel  <krebbel@linux.ibm.com>

* config/s390/driver-native.c (s390_host_detect_local_cpu): Add
0x3907 as CPU model number.

From-SVN: r264797

S/390: Rename arch12 to z14

This is a mechanical change not impacting code generation.  With that
patch I try to hide the artificial CPU name arch12 which we had to use
before the announcement of the IBM z14 machine.  arch12 of course
stays a valid option to -march and -mtune.  So this is just about
making the code somewhat easier to read.

gcc/ChangeLog:

2018-10-02  Andreas Krebbel  <krebbel@linux.ibm.com>

* common/config/s390/s390-common.c: Rename PF_ARCH12 to PF_Z14.
* config/s390/s390.h (enum processor_flags): Rename PF_ARCH12 to
PF_Z14.  Rename TARGET_CPU_ARCH12 to TARGET_CPU_Z14,
TARGET_CPU_ARCH12_P to TARGET_CPU_Z14_P, TARGET_ARCH12 to
TARGET_Z14, and TARGET_ARCH12_P to TARGET_Z14_P.
* config/s390/s390.md: Likewise. Rename also the cpu attribute
value from arch12 to z14.

From-SVN: r264796

i386.md (fxam<mode>2_i387_with_temp): Remove.

* config/i386/i386.md (fxam<mode>2_i387_with_temp): Remove.
(isinfxf2): Ditto.
(isinf<mode>2): Ditto.

From-SVN: r264795

i386.c (ix86_emit_i387_round): Extend op1 to XFmode before emitting fxam.

* config/i386/i386.c (ix86_emit_i387_round): Extend op1 to XFmode
before emitting fxam.  Perform calculations in XFmode.

From-SVN: r264794

net: don't fail test if splice fails because pipe2 is missing

    This reportedly happens on CentOS 5.11.  The real code will work fine;
    this test is assuming that the unexported slice function will handle
    the splice, but if pipe2 does not work then it doesn't.  The relevant
    code in internal/poll/splice_linux.go says "Falling back to pipe is
    possible, but prior to 2.6.29 splice returns -EAGAIN instead of 0 when
    the connection is closed."

    Reviewed-on: https://go-review.googlesource.com/138838

From-SVN: r264793

((X /[ex] A) +- B) * A --> X +- A * B

2018-10-02  Marc Glisse  <marc.glisse@inria.fr>

gcc/
* match.pd (((X /[ex] A) +- B) * A): New transformation.

gcc/testsuite/
* gcc.dg/tree-ssa/muldiv-1.c: New file.
* gcc.dg/tree-ssa/muldiv-2.c: Likewise.

From-SVN: r264792

vector<bool> _M_start and 0 offset

2018-10-02  Marc Glisse  <marc.glisse@inria.fr>

PR libstdc++/87258
* include/bits/stl_bvector.h (vector::begin(), vector::cbegin()):
Rebuild _M_start with an explicit 0 offset.

From-SVN: r264791