gimple-low.c (lower_gimple_bind): Clear DECL_CHAIN of vars in gimple_bind_vars but not in BLOCK_VARS.

2016-10-07  Richard Biener  <rguenther@suse.de>

* gimple-low.c (lower_gimple_bind): Clear DECL_CHAIN of
vars in gimple_bind_vars but not in BLOCK_VARS.

From-SVN: r240855

re PR tree-optimization/77879 (mpd gets miscompiled since r235622)

2016-10-07  Richard Biener  <rguenther@suse.de>

PR tree-optimization/77879
* tree-ssa-structalias.c (handle_const_call): Properly handle
NRV return slots.
(handle_pure_call): Likewise.

From-SVN: r240854

compiler: stack allocate storage for temp slices.

    During the lowering phase, the variable arguments to a varargs call are
    packaged up into a temporary slice object; the storage for this slice
    was being unconditionally allocated on the heap.  Heap allocation is not
    necessary, however, if the varargs call correspond to an "append", since
    the append runtime routine only reads the slice storage (as opposed to
    stashing away the storage pointer). Enhance the lowering code to keep
    the slice storage on the stack for append() calls, to improve
    performance.

    Addresses issue golang/go#17304.

    Reviewed-on: https://go-review.googlesource.com/30136

From-SVN: r240853

2016-10-06  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>

* config/rs6000/rs6000.c (rs6000_elf_asm_out_constructor)
(rs6000_elf_asm_out_destructor): increase size of buf to avoid
possible overflow.

From-SVN: r240852

[multiple changes]

2016-10-06  Louis Krupp <louis.krupp@zoho.com>

* gfortran.dg/pr69955.f90: New test.

2016-10-06  Louis Krupp  <louis.krupp@zoho.com>

PR fortran/69955
* trans-array.c (gfc_conv_expr_descriptor): Don't allocate
components if it's not necessary.

From-SVN: r240851

2016_10-06  Louis Krupp  <louis.krupp@zoho.com>

PR fortran/57910
* gfortran.dg/pr57910.f90: New test.

2016-10-05  Louis Krupp  <louis.krupp@zoho.com>

PR fortran/57910
* trans-expr.c (gfc_add_interface_mapping): Don't try to
dereference call-by-value scalar argument

From-SVN: r240850

Daily bump.

From-SVN: r240849

aarch64-cores.def: Add a comment before each set of cores.

2016-10-06  Andrew Pinski  <apinski@cavium.com>

        * config/aarch64/aarch64-cores.def: Add a comment before each
        set of cores.

From-SVN: r240846

C++17 copy elision improvements.

* call.c (build_temp, convert_like_real): Don't re-copy
TARGET_EXPR.  Handle packed fields.
(build_x_va_arg): Wrap it in a TARGET_EXPR.
(build_over_call): Add sanity check.
* cvt.c (early_elide_copy): New.
(ocp_convert): Use it.
* except.c (build_throw): Use it.
* init.c (get_nsdmi): Put back the TARGET_EXPR.
(expand_default_init): Call early_elide_copy.
* typeck.c (cp_build_modify_expr): Call early_elide_copy.

From-SVN: r240845

Make std::scoped_allocator_adaptor's OUTERMOST recursive

* doc/xml/manual/status_cxx2011.xml: Update status.
* include/std/scoped_allocator (__outer_allocator_t, __outermost_type):
New helpers for recursive OUTERMOST.
(__outermost): Use __outermost_type::_S_outermost.
(__do_outermost, scoped_allocator_adaptor::__outermost_type): Remove.
(scoped_allocator_adaptor::__outermost_alloc_traits): Use new
__outermost_type helper.
* testsuite/20_util/scoped_allocator/outermost.cc: New test.

From-SVN: r240844

Implement P0258R2 - helper for C++17 std::has_unique_object_representations trait c-family/

Implement P0258R2 - helper for C++17
std::has_unique_object_representations trait
c-family/
* c-common.h (enum rid): Add RID_HAS_UNIQUE_OBJ_REPRESENTATIONS.
* c-common.c (c_common_reswords): Add
__has_unique_object_representations.
cp/
* cp-tree.h (enum cp_trait_kind): Add
CPTK_HAS_UNIQUE_OBJ_REPRESENTATIONS.
(struct lang_type_class): Add unique_obj_representations
and unique_obj_representations_set bitfields.
(CLASSTYPE_UNIQUE_OBJ_REPRESENTATIONS,
CLASSTYPE_UNIQUE_OBJ_REPRESENTATIONS_SET): Define.
(type_has_unique_obj_representations): Declare.
* parser.c (cp_parser_primary_expression): Handle
RID_HAS_UNIQUE_OBJ_REPRESENTATIONS.
(cp_parser_trait_expr): Likewise.  Formatting fix.
* semantics.c (trait_expr_value, finish_trait_expr): Handle
CPTK_HAS_UNIQUE_OBJ_REPRESENTATIONS.
* tree.c (type_has_unique_obj_representations): New function.
(record_has_unique_obj_representations): New function.
* cxx-pretty-print.c (pp_cxx_trait_expression): Handle
CPTK_HAS_UNIQUE_OBJ_REPRESENTATIONS.
testsuite/
* g++.dg/cpp1z/has-unique-obj-representations1.C: New test.
* g++.dg/cpp1z/has-unique-obj-representations2.C: New test.

From-SVN: r240843

re PR tree-optimization/77862 (ice in add_equivalence)

Fix PR77862
gcc/testsuite/ChangeLog:

2016-10-06  Kugan Vivekanandarajah  <kuganv@linaro.org>

PR tree-optimization/77862
* gcc.dg/pr77862.c: New test.

gcc/ChangeLog:

2016-10-06  Kugan Vivekanandarajah  <kuganv@linaro.org>

PR tree-optimization/77862
* tree-vrp.c (add_equivalence): Use get_value_range so that
num_vr_values is checked before accessing vr_values.

From-SVN: r240842

Handle POINTER_TYPE_P in EVRP

Handle POINTER_TYPE_P in EVRP
gcc/ChangeLog:

2016-10-06  Kugan Vivekanandarajah  <kuganv@linaro.org>

* tree-vrp.c (evrp_dom_walker::before_dom_children): Handle
  POINTER_TYPE_P.

gcc/testsuite/ChangeLog:

2016-10-06  Kugan Vivekanandarajah  <kuganv@linaro.org>

* gcc.dg/tree-ssa/evrp4.c: New test.

From-SVN: r240841

go-gcc.cc (Gcc_backend::stack_allocation_expression): Clear the returned memory.

* go-gcc.cc (Gcc_backend::stack_allocation_expression): Clear the
returned memory.

From-SVN: r240840

re PR tree-optimization/71661 (wrong code at -O3)

PR tree-optimization/71661
* tree-cfgcleanup.c (remove_forwarder_block_with_phi): Handle case when
removal of a forwarder exposes a new natural loop.

PR tree-optimization/71661
* gcc.dg/tree-ssa/pr71661.c: New test.

From-SVN: r240836

* config/i386/i386.c (ix86_add_stmt_cost): Simplify condition.

From-SVN: r240835

sse.md (andnot<mode>3): Add FALLTHRU comments.

* config/i386/sse.md (andnot<mode>3): Add FALLTHRU comments.
Introduce ssesuffix variable.
(<mask_codefor><code><mode>3<mask_name>): Ditto.
(*<code><mode>3): Ditto.

From-SVN: r240834

postreload.c (reload_cse_simplify): Skip also USE when detecting noop move.

* postreload.c (reload_cse_simplify): Skip also USE when detecting
noop move.

From-SVN: r240833

re PR tree-optimization/77855 (wrong code at -O3 on x86_64-linux-gnu (in both 32-bit and 64-bit modes))

2016-10-06  Richard Biener  <rguenther@suse.de>

PR tree-optimization/77855
* tree-ssa-pre.c (prune_clobbered_mems): Queue exprs to remove
instead of removing the current item while iterating over the set
which is not safe.

* gcc.dg/torture/pr77855.c: New testcase.

From-SVN: r240832

re PR target/77759 (ICE in function_arg_record_value on nested empty class)

PR target/77759
* config/sparc/sparc.c (classify_data_t): Remove int_regs field.
(classify_registers): Don't set it
(function_arg_slotno): Don't initialize and test it.  Tidy up.

Co-Authored-By: Eric Botcazou <ebotcazou@adacore.com>
From-SVN: r240830

re PR tree-optimization/77839 (Memory- and compile time hog at -O1 and above)

2016-10-06  Richard Biener  <rguenther@suse.de>

PR tree-optimization/77839
* tree-ssa-sccvn.c (set_ssa_val_to): Forbid value -> constant value
lattice transition.

* gcc.dg/torture/pr77839.c: New testcase.

From-SVN: r240829

Add -fprofile-update option juggling

* gcc.c: Set -fprofile-update=atomic when profiling is
enabled and -pthread is set.  Warn when one combines
-pthread and -fprofile-update=single for an app using
profiling code.

From-SVN: r240828

Fix warnings for make profiledbootstrap (PR bootstrap/77788)

PR bootstrap/77788
* expmed.h (mul_highpart_cost_ptr): Add an gcc_assert.
* gimple-ssa-strength-reduction.c (slsr_process_cast):
Initialize a pointer to NULL.
(slsr_process_copy): Likewise.
* input.c (location_get_source_line): Likewise.
* tree-ssa-ccp.c (optimize_atomic_bit_test_and): Likewise.

From-SVN: r240827

escape: Avoid allocation of varargs parameter.

    There was a bug in the escape analysis that would cause
    the slice implicitly created to hold varargs parameters to always
    escape, as well as the appended to slice argument.  The intended
    behavior was that the elements of the appendee and appended to
    slice would escape to the heap.  Alongside of these issues,
    the varargs slice would also have a chance to be initialized to an
    invalid memory location if it were stack-allocated.  This has been
    fixed as well.

    Reviewed-on: https://go-review.googlesource.com/30450

From-SVN: r240826

* g++.dg/cpp1z/init-statement9.C: New test.

From-SVN: r240824

Daily bump.

From-SVN: r240823

Implement P0135R1, Guaranteed copy elision.

* cvt.c (ocp_convert): Don't re-copy a TARGET_EXPR in C++17.

From-SVN: r240820

PR c++/54293 - binding reference to member of temporary

* call.c (reference_binding): Fix binding to member of temporary.

From-SVN: r240819

* call.c (extend_ref_init_temps): Fix TARGET_EXPR handling.

From-SVN: r240818

Delete x86 deprecated pcommit instruction support

Delete x86 pcommit instruction support, which has been deprecated:

https://software.intel.com/en-us/blogs/2016/09/12/deprecate-pcommit-instruction

gcc/

* common/config/i386/i386-common.c (OPTION_MASK_ISA_PCOMMIT_UNSET,
OPTION_MASK_ISA_PCOMMIT_SET): Deleted definitions.
(ix86_handle_option): Deleted handle of OPT_mpcommit.
* config.gcc: Deleted pcommitintrin.h
* config/i386/pcommitintrin.h: Deleted file.
* config/i386/cpuid.h (bit_PCOMMIT): Deleted.
* config/i386/driver-i386.c (host_detect_local_cpu): Deleted pcommit
detection.
* config/i386/i386-c.c (ix86_target_macros_internal): Deleted define
__PCOMMIT__.
* config/i386/i386.c (ix86_target_string): Deleted -mpcommit.
(PTA_PCOMMIT): Deleted define.
(ix86_option_override_internal): Deleted handle of option.
(ix86_valid_target_attribute_inner_p): Deleted pcommit.
* config/i386/i386-builtin.def (IX86_BUILTIN_PCOMMIT,
__builtin_ia32_pcommit): Deleted.
* config/i386/i386.h (TARGET_PCOMMIT, TARGET_PCOMMIT_P): Deleted.
* config/i386/i386.md (unspecv): Deleted UNSPECV_PCOMMIT.
(pcommit): Deleted instruction.
* config/i386/i386.opt: Mention -mpcommit deprecation.
* config/i386/x86intrin.h: Deleted inclusion of pcommitintrin.h.

gcc/testsuite/

* gcc.target/i386/pcommit-1.c: Deleted.
* gcc.target/i386/sse-12.c: Deleted -pcommit option.
* gcc.target/i386/sse-13.c: Ditto.
* gcc.target/i386/sse-14.c: Ditto.
* gcc.target/i386/sse-22.c: Ditto.
* gcc.target/i386/sse-23.c: Ditto.
* g++.dg/other/i386-2.C: Ditto.

From-SVN: r240816

pr77833.c: Require int128 effective target.

* gcc.target/i386/pr77833.c: Require int128 effective target.

From-SVN: r240815

re PR target/77874 (two problems with gcc.target/i386/avx-1.c)

PR target/77874
* config/i386/sse.md (<mask_codefor><code><mode>3<mask_name>):
Remove wrong assert.
(<floatsuffix>float<sseintvecmodelower><mode>2<mask_name><round_name>:
Use <round_constraint> as operand 1 constraint.

From-SVN: r240814

re PR fortran/58991 (ICE with associate and character string constant)

2016-10-05  Steven G. Kargl  <kargls@gcc.gnu.org>

PR fortran/58991
PR fortran/58992
* resolve.c (resolve_assoc_var):  Fix CHARACTER type-spec for a
selector in ASSOCIATE.
(resolve_fl_variable): Skip checks for an ASSOCIATE variable.

2016-10-05  Steven G. Kargl  <kargls@gcc.gnu.org>

PR fortran/58991
PR fortran/58992
* gfortran.dg/associate_22.f90: New test.

From-SVN: r240812

Fix ICE due to comparison between UNION components.

2016-10-05  Fritz Reese  <fritzoreese@gmail.com>

Fix ICE due to comparison between UNION components.

gcc/fortran/
* interface.c (gfc_compare_types): Don't compare BT_UNION components
until we know they're both UNIONs.
* interface.c (gfc_compare_union_types): Guard against empty
components.

gcc/testsuite/gfortran.dg/
* dec_union_9.f90: New testcase.
* dec_union_10.f90: New testcase.

From-SVN: r240810

* parser.c (cp_parser_skip_to_end_of_statement): Add missing break.

From-SVN: r240809

Fix last commit.

From-SVN: r240806

re PR sanitizer/66343 ("Error: .Lubsan_type3 already defined" with UBSan and precompiled headers)

PR sanitizer/66343
* ubsan.c (ubsan_create_data): Call initialize_sanitizer_builtins here.
(ubsan_instrument_float_cast): And not here.

* c-ubsan.c (ubsan_instrument_return): Don't call
initialize_sanitizer_builtins here.

* gcc.dg/pch/pr66343-3.c: New test.
* gcc.dg/pch/pr66343-3.hs: New file.

From-SVN: r240804

re PR sanitizer/66343 ("Error: .Lubsan_type3 already defined" with UBSan and precompiled headers)

PR sanitizer/66343
* ubsan.c (ubsan_ids): New GTY(()) array.
(ubsan_type_descriptor, ubsan_create_data): Use ubsan_ids
instead of static local counters.

* gcc.dg/pch/pr66343-1.c: New test.
* gcc.dg/pch/pr66343-1.hs: New file.
* gcc.dg/pch/pr66343-2.c: New test.
* gcc.dg/pch/pr66343-2.hs: New file.

From-SVN: r240803

* semantics.c (finish_compound_literal): Handle class placeholder.

From-SVN: r240802

MAINTAINERS: Update email address after it got reverted.

2016-10-05  Steve Ellcey  <sellcey@caviumnetworks.com>

* MAINTAINERS: Update email address after it got reverted.

From-SVN: r240801

c-common.c (c_common_truthvalue_conversion): Warn also for suspicious conditional expression in boolean context when...

2016-10-05  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * c-common.c (c_common_truthvalue_conversion): Warn also for suspicious
        conditional expression in boolean context when only one arm is
        non-boolean.

testsuite:
2016-10-05  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * c-c++-common/Wint-in-bool-context.c: Update test.

From-SVN: r240799

Implement P0305R1, Selection statements with initializer.

* cp-array-notation.c (create_an_loop): Call finish_init_stmt
instead of finish_for_init_stmt.
* cp-tree.h (finish_for_init_stmt): Rename to finish_init_stmt.
* decl.c (poplevel): Adjust a comment.
* init.c (build_vec_init): Call finish_init_stmt instead of
finish_for_init_stmt.
* name-lookup.c (pushdecl_maybe_friend_1): Adjust a comment.
* name-lookup.h (enum scope_kind): Likewise.
* parser.c (cp_parser_statement): Update commentary.
(cp_parser_init_statement_p): New function.
(cp_parser_selection_statement): Parse the optional init-statement.
(cp_parser_for): Call finish_init_stmt instead of finish_for_init_stmt.
(cp_parser_c_for): Likewise.
(cp_convert_range_for): Call finish_init_stmt instead of finish_for_init_stmt.
(cp_parser_range_for_member_function): Update commentary.
(cp_parser_iteration_statement):
(cp_parser_for_init_statement): Rename to cp_parser_init_statement.
* pt.c (tsubst_omp_for_iterator): Update commentary.
(tsubst_expr): Call finish_init_stmt instead of finish_for_init_stmt.
* semantics.c (finish_for_init_stmt): Rename to finish_init_stmt.
Update commentary.

* g++.dg/cpp1z/init-statement1.C: New test.
* g++.dg/cpp1z/init-statement2.C: New test.
* g++.dg/cpp1z/init-statement3.C: New test.
* g++.dg/cpp1z/init-statement4.C: New test.
* g++.dg/cpp1z/init-statement5.C: New test.
* g++.dg/cpp1z/init-statement6.C: New test.
* g++.dg/cpp1z/init-statement7.C: New test.
* g++.dg/cpp1z/init-statement8.C: New test.

From-SVN: r240798

re PR fortran/67524 (ICE on using implicit character instead of implicit none etc.)

2016-10-05  Louis Krupp  <louis.krupp@zoho.com>

PR fortran/67524
* gfortran.dg/pr67524.f90: New test.

2016-10-05  Louis Krupp  <louis.krupp@zoho.com>

PR fortran/67524
* resolve.c (resolve_symbol): Don't apply default type rules to
mixed-entry master created for function entry points.

From-SVN: r240797

re PR sanitizer/77823 (ICE: in ubsan_encode_value, at ubsan.c:137 with -fsanitize=undefined and vector types)

PR sanitizer/77823
* c-ubsan.c (ubsan_instrument_shift): Return NULL_TREE if type0
is not integral.

* c-c++-common/ubsan/shift-9.c: New test.

From-SVN: r240796

Fix pr69941.c test failure for avr

The test assumes ints are atleast 32 bits wide. For the avr
target, ints are 16 bits wide. This leads VRP to conclude
that a right shift by 9 followed by an equality comparison
to 0x74 can never be true. VRP eliminates the conditional, and
the code ends up unconditionally calling __builtin_abort.

Fixed the testcase to use __INT32_TYPE__ for targets with less
than 32 bit wide integers, wherever the size happens to be
significant.

gcc/testsuite/ChangeLog

2016-10-05  Senthil Kumar Selvaraj  <senthil_kumar.selvaraj@atmel.com>

        * gcc.dg/torture/pr69941.c: Use __INT32_TYPE__ instead
        of int if __SIZEOF_INT__ is less than 4 bytes.

From-SVN: r240795

re PR libfortran/77868 (Fail to NULL guard check for internal unit in inquire_via_unit)

2016-10-05  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

PR fortran/77868
* io/inquire.c (inquire_via_unit): NULL guard the check for
internal unit passed into child IO procedure.

* gfortran.dg/dtio_15.f90: Fix spaces in dg-do.
* gfortran.dg/class_array_20.f03: Likewise.
* gfortran.dg/class_array_21.f03: Likewise.
* gfortran.dg/finalize_29.f08: Likewise.
* gfortran.dg/unlimited_polymorphic_23.f90: Likewise.

From-SVN: r240794

PR bootstrap/77819 - undefined reference to gnu_libc_printf_pointer_format with uClibc

gcc/ChangeLog:

PR bootstrap/77819
* config/linux.h (TARGET_PRINTF_POINTER_FORMAT): Define macro.
* config/linux.c (gnu_libc_printf_pointer_format): Remove.
* targhooks.c [DEFAULT_LIBC == LIBC_UCLIBC) && SINGLE_LIBC]
(default_printf_pointer_format): Define function.
* targhooks.c (linux_printf_pointer_format): Define new function.
* targhooks.h (linux_printf_pointer_format): Declare.
(gnu_libc_printf_pointer_format): Remove declaration.

From-SVN: r240793

* c-common.c (c_common_reswords): Update comment for C++11.

From-SVN: r240792

[fold-const] Fix native_encode_real for HFmode constants

* fold-const.c (native_encode_real): Fix logic for selecting offset
to write to when BYTES_BIG_ENDIAN.

From-SVN: r240791

70564 fix newly-added tests for not_fn

PR libstdc++/70564
* testsuite/20_util/not_fn/1.cc: Fix test.
* testsuite/experimental/functional/not_fn.cc: Likewise.

From-SVN: r240784

re PR target/77847 (PowerPC big endian power7/power8 do not bootstrap due to fall through error)

libcpp/ChangeLog:

2016-10-04  Kelvin Nilsen  <kelvin@gcc.gnu.org>

PR target/77847
* lex.c (search_line_fast): Add a FALLTHROUGH comment to correct
compiler error in the version of this function that is
conditionally compiled when GCC_VERSION >= 4005 and both
__ALTIVEC__ and __BIG_ENDIAN__ symbols are defined.

From-SVN: r240783

Move all existing strchr and strrchr folding from builtins.c to gimple-fold.c.

    gcc/
        * builtins.c (fold_builtin_strchr): Remove function.
        (fold_builtin_strrchr): Likewise.
        (fold_builtin2): Remove strchr, index, strrchr, rindex cases.
        * gimple-fold.c (target_char_cst_p): New function.
        (gimple_fold_builtin_strchr) Add more foldings.
        (gimple_fold_builtin): Add index, strrchr, rindex cases.

From-SVN: r240782

PR 70101 fix allocator-extended ctors for std::priority_queue

PR libstdc++/70101
* include/bits/stl_queue.h (priority_queue): Fix allocator-extended
constructors.
* testsuite/23_containers/priority_queue/allocator.cc: New test.

From-SVN: r240781

77864 Fix noexcept conditions for map/set default constructors

PR libstdc++/77864
* include/bits/stl_map.h (map::map()): Use nothrow constructibility
of comparison function in conditional noexcept.
* include/bits/stl_multimap.h (multimap::multimap()): Likewise.
* include/bits/stl_multiset.h (multiset::multiset()): Likewise.
* include/bits/stl_set.h (set::set()): Likewise.
* testsuite/23_containers/map/cons/noexcept_default_construct.cc:
New test.
* testsuite/23_containers/multimap/cons/noexcept_default_construct.cc:
Likewise.
* testsuite/23_containers/multiset/cons/noexcept_default_construct.cc:
Likewise.
* testsuite/23_containers/set/cons/noexcept_default_construct.cc:
Likewise.

From-SVN: r240780

Remove invalid alias declaration from _Node_handle

* include/bits/node_handle.h (_Node_handle): Remove invalid and unused
alias declaration.

From-SVN: r240779

PR 70564 disambiguate constructors for not_fn call wrapper

PR libstdc++/70564
* include/experimental/functional (_Not_fn): Remove.
(not_fn): Use std::_Not_fn.
* include/std/functional (_Not_fn): Add second parameter to
disambiguate copying from initialization by not_fn. Define for C++14.
(not_fn): Add second argument to initialization.
* testsuite/20_util/not_fn/1.cc: Copy call wrapper using
direct-initialization.

From-SVN: r240778

re PR middle-end/77863 (genmatch segfault on a wrong usage of an for operator)

2016-10-05  Richard Biener  <rguenther@suse.de>

PR middle-end/77863
* genmatch.c (capture_info::walk_c_expr): Diagnose unknown
capture ids in c-exprs.

From-SVN: r240777

re PR target/77826 (ICE in decompose, at wide-int.h:928 w/ -m64 -O2 and above)

2016-10-05  Richard Biener  <rguenther@suse.de>

PR middle-end/77826
* genmatch.c (dt_operand::gen_match_op): Amend operand_equal_p
with types_match for GIMPLE code gen to handle type mismatched
constants properly.
(dt_operand::gen): Adjust.
* match.pd ((X /[ex] A) * A -> X): Properly handle converted
and constant A.

* gcc.dg/torture/pr77826.c: New testcase.

From-SVN: r240776

match.pd (copysign(x, CST) -> [-]abs (x)): New pattern.

2016-10-05  Richard Biener  <rguenther@suse.de>

* match.pd (copysign(x, CST) -> [-]abs (x)): New pattern.

* gcc.dg/fold-copysign-1.c: New testcase.

From-SVN: r240775

re PR middle-end/77842 (genmatch segfault on a missing brace)

2016-10-05  Richard Biener  <rguenther@suse.de>

PR middle-end/77842
* genmatch.c (parser::parse_c_expr): Handle premature EOF.

From-SVN: r240774

* g++.dg/pr49847-2.C: Remove.

From-SVN: r240773

DWARF: move pessimistic DWARF version checks for imported entities

A check in dwarf2out_imported_module_or_decl prevents
DW_TAG_imported_module from being emitted as it was introduced in the
DWARFv3 standard. However, this also prevents valid strict DWARFv2
constructs such as DW_TAG_imported_declaration from being emitted in
dwarf2out_imported_module_or_decl_1.

The latter already protects the emission of newer DWARF tags with
appropriate checks, so the one in the former is redundant and
pessimistic.  This function is already called from places like
process_scope_var, which are not protected anyway.

This patch moves the check in dwarf2out_imported_module_or_decl so that
in strict DWARFv2 mode, tags like DW_TAG_imported_declaration are
emitted while DW_TAG_imported_module are not.

gcc/

* dwarf2out.c (dwarf2out_imported_module_or_decl): Move DWARF
version check to protect only DW_TAG_imported_module generation.

gcc/testsuite/

* gnat.dg/debug7.adb, gnat.dg/debug7.ads: New testcase.

From-SVN: r240772

crtbegin.S (__do_jv_register_classes): Remove.

* config/ia64/crtbegin.S (__do_jv_register_classes): Remove.
(.section .init_array): Don't call __do_jv_register_classes.
(.section .init): Likewise.

From-SVN: r240771

re PR middle-end/55152 (MAX_EXPR(a,-a) is really ABS_EXPR(a))

2016-10-05  Richard Biener  <rguenther@suse.de>

PR middle-end/55152
* match.pd (min(a,-a) -> -abs(a)): New pattern.

* gcc.dg/pr55152-2.c: New testcase.

From-SVN: r240770

dtio_15.f90: New test.

2016-10-04  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

* gfortran.dg/dtio_15.f90: New test.

From-SVN: r240769

2016-10-04  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

io/inquire.c (inquire_via_unit): Add check for internal unit
passed into child IO procedure.

From-SVN: r240768

* g++.dg/cpp1z/class-deduction16.C: Use tuple.

From-SVN: r240766

PR c++/77852 - class deduction from list-init

* pt.c (do_class_deduction): Handle list-initialization.
(do_auto_deduction): Call it sooner.
(build_deduction_guide): Use tsubst_arg_types.
(rewrite_template_parm): Don't copy_type.

From-SVN: r240765

explow.c (allocate_dynamic_stack_space): Call do_pending_stack_adjust before handling flag_split_stack.

gcc/:
* explow.c (allocate_dynamic_stack_space): Call
do_pending_stack_adjust before handling flag_split_stack.
gcc/testsuite/:
* gcc.dg/split-7.c: New test.

From-SVN: r240764

Daily bump.

From-SVN: r240761

builtin-sprintf-warn-1.c: Cast int argument to %lc directive to wint_t to silence -Wformat warnings on...

gcc/testsuite/ChangeLog:
* gcc.dg/tree-ssa/builtin-sprintf-warn-1.c: Cast int argument to
%lc directive to wint_t to silence -Wformat warnings on targets
where the latter is a distinct type such as long.

From-SVN: r240758

PR c++/77775 - misoptimization of PMF comparison

* constexpr.c (cxx_eval_component_reference): Use name matching
for PMFs.

From-SVN: r240757

Implement P0091R2, Template argument deduction for class templates.

* parser.c (cp_parser_simple_type_specifier): Parse class placeholder.
Use the location of the beginning of the type-specifier.
(cp_parser_init_declarator): Parse deduction guide.
(cp_parser_diagnose_invalid_type_name): Mention class deduction.
(cp_parser_type_id_1): Don't accept class placeholder as template arg.
* cp-tree.h (CLASS_PLACEHOLDER_TEMPLATE): New.
* decl.c (grokdeclarator): Check for uninitialized auto here.
(start_decl_1): Not here.
(cp_finish_decl): Or here.  Don't collapse a list when doing
class deduction.
(grokfndecl): Check deduction guide scope and body.
* error.c (dump_decl, dump_function_decl, dump_function_name):
Handle deduction guides.
* pt.c (make_template_placeholder, do_class_deduction): New.
(build_deduction_guide, rewrite_template_parm): New.
(dguide_name, dguide_name_p, deduction_guide_p): New.
(do_auto_deduction): Call do_class_deduction.
(splice_late_return_type, is_auto): Handle class placeholders.
(template_parms_level_to_args): Split from template_parms_to_args.
(tsubst_template_parms_level): Split from tsubst_template_parms.
* typeck2.c (build_functional_cast): Handle class placeholder.

From-SVN: r240756

PR c++/77804 - Internal compiler error on incorrect initialization of new-d array

gcc/cp/ChangeLog:

PR c++/77804
* init.c (warn_placement_new_too_small): Avoid assuming an array type
has a constant size.

gcc/testsuite/ChangeLog:

PR c++/77804
* g++.dg/warn/Wplacement-new-size-4.C: New test.

From-SVN: r240754

read-md.c: track column numbers

gcc/ChangeLog:
* genattrtab.c (make_internal_attr): Supply dummy column number to
file_location ctor.
(main): Likewise.
* genoutput.c (init_insn_for_nothing): Likewise.
* gensupport.c (add_define_attr): Likewise.
* read-md.c (message_at_1): Print column number.
(fatal_with_file_and_line): Likewise.
(rtx_reader::read_char): Track column numbers.
(rtx_reader::unread_char): Likewise.
(rtx_reader::rtx_reader): Initialize m_read_md_colno.
(rtx_reader::handle_include): Stash and restore m_read_md_colno.
(rtx_reader::handle_file): Initialize m_read_md_colno.
(rtx_reader::get_current_location): Supply column number to
file_location ctor.
* read-md.h (struct file_location): Add field "colno".
(file_location::file_location): Likewise.
(rtx_reader::get_colno): New accessor.
(rtx_reader::m_read_md_colno): New field.
(rtx_reader::m_last_line_colno): New field.

From-SVN: r240752

re PR c++/77791 (ICE on invalid C++11 code with redefined function parameter: tree check: expected tree that contains ‘decl minimal’ structure, have ‘error_mark’ in cp_parser_lambda_declarator_opt, at cp/parser.c:1011)

PR c++/77791
* parser.c (cp_parser_lambda_declarator_opt): Only pedwarn
for C++11 on decls in the param_list.  Test cxx_dialect < cxx14 before
the loop just once.

* g++.dg/cpp0x/lambda/lambda-77791.C: New test.

From-SVN: r240751

extend.texi (Java Exceptions): Remove.

* doc/extend.texi (Java Exceptions): Remove.
(java_interface): Remove.
cp/
* cp-tree.h (enum cp_tree_index): Remove CPTI_JAVA_*,
CPTI_LANG_NAME_JAVA and CPTI_JCLASS.
(java_byte_type_node, java_short_type_node, java_int_type_node,
java_long_type_node, java_float_type_node, java_double_type_node,
java_char_type_node, java_boolean_type_node, lang_name_java,
jclass_node): Remove.
(enum languages): Remove lang_java.
(TYPE_FOR_JAVA): Remove.
(struct lang_type_class): Remove java_interface bit-field.
(TYPE_JAVA_INTERFACE): Remove.
(pragma_java_exceptions): Remove.
(check_java_method, build_java_class_ref): Remove prototypes.
* name-lookup.c (pushtag_1): Don't set TYPE_FOR_JAVA.
* decl2.c (acceptable_java_type, check_java_method): Remove.
(import_export_decl): Remove TYPE_FOR_JAVA handling.
(build_java_method_aliases): Remove.
(c_parse_final_cleanups): Don't call build_java_method_aliases.
(possibly_inlined_p): Don't test pragma_java_exceptions.
* init.c (build_new_1): Remove TYPE_FOR_JAVA handling.
(build_java_class_ref): Remove.
* pt.c (maybe_new_partial_specialization, lookup_template_class_1,
instantiate_class_template_1): Don't copy TYPE_FOR_JAVA.
* except.c (eh_type_info): Remove java type handling.
(decl_is_java_type, choose_personality_routine): Remove.
(initialize_handler_parm): Don't call choose_personality_routine.
(expand_start_catch_block): Don't handle java types.
(build_throw): Likewise.
* cp-lang.c (cp_eh_personality): Don't handle pragma_java_exceptions.
* typeck.c (structural_comptypes): Don't compare TYPE_FOR_JAVA.
* call.c (build_over_call): Don't handle TYPE_JAVA_INTERFACE.
(java_iface_lookup_fn): Remove.
(build_java_interface_fn_ref): Remove.
* tree.c (cxx_attribute_table): Remove java_interface.
(handle_java_interface_attribute): Remove.
* lex.c (pragma_java_exceptions): Remove.
(init_cp_pragma): Don't register GCC java_exceptions pragma.
(handle_pragma_java_exceptions): Remove.
(retrofit_lang_decl): Don't handle lang_name_java.
* method.c (implicitly_declare_fn): Don't handle TYPE_FOR_JAVA.
* error.c (language_to_string): Don't handle lang_java.
* decl.c (record_builtin_java_type): Remove.
(initialize_predefined_identifiers): Remove Java.
(cxx_init_decl_processing): Remove java_*_type_node.
(cp_finish_decl): Don't handle TYPE_FOR_JAVA.
(grokfndecl): Likewise.
(check_special_function_return_type): Likewise.
(grokdeclarator): Don't set TYPE_FOR_JAVA.
(grokparms): Don't handle TYPE_FOR_JAVA.
(xref_basetypes): Likewise.
(check_function_type): Likewise.
(finish_constructor_body): Likewise.
* mangle.c (write_builtin_type): Don't handle TYPE_FOR_JAVA
and java_*_type_node.
(write_bare_function_type): Don't handle TYPE_FOR_JAVA.
(write_java_integer_type_codes): Remove.
* class.c (add_method): Don't handle TYPE_FOR_JAVA.
(add_implicitly_declared_members, determine_key_method,
finish_struct_1): Likewise.
(push_lang_context): Don't handle lang_name_java.
testsuite/
* g++.dg/other/java3.C: Remove.
* g++.dg/other/java1.C: Remove.
* g++.dg/other/error12.C: Remove.
* g++.dg/other/java2.C: Remove.
* g++.dg/warn/Wnvdtor.C: Remove.
* g++.dg/lookup/java1.C: Remove.
* g++.dg/lookup/java2.C: Remove.
* g++.dg/ext/pr34829.C: Remove.
* g++.dg/ext/java-3.C: Remove.
* g++.dg/ext/java-1.C: Remove.
* g++.dg/ext/java-2.C: Remove.
* g++.old-deja/g++.oliva/dwarf2.C: Remove.

From-SVN: r240750

re PR tree-optimization/77808 (ICE in duplicate_ssa_name_ptr_info, at tree-ssanames.c:630 starting with r240439)

Fix PR tree-optimization/77808

gcc/
PR tree-optimization/77808
* tree-ssa-loop-prefetch.c (issue_prefetch_ref): Check base_addr
and addr are different before copying points-to information.

gcc/testsuite/
PR tree-optimization/77808
* gcc.dg/tree-ssa/pr77808.c: New testcase.

From-SVN: r240749

x86-tune.def (X86_TUNE_VECTORIZE_DOUBLE): Remove.

* config/i386/x86-tune.def (X86_TUNE_VECTORIZE_DOUBLE): Remove.
* config/i386/i386.h (TARGET_VECTORIZE_DOUBLE): Remove.
* config/i386/i386.c (ix86_add_stmt_cost): Use TARGET_BONNEL instead
of !TARGET_VECTORIZE_DOUBLE when penalizing DFmode vector ops.

From-SVN: r240748

Add missing testcases from previous patch revision r240379, failed to svn add.

From-SVN: r240746

re PR tree-optimization/77399 (Poor code generation for vector casts and loads)

2016-10-04  Richard Biener  <rguenther@suse.de>

PR tree-optimization/77399
* tree-ssa-forwprop.c (simplify_vector_constructor): Properly
verify the target can convert.

* gcc.dg/tree-ssa/forwprop-35.c: Adjust.

From-SVN: r240744

re PR target/77833 (ICE: in plus_constant, at explow.c:87 with -O -mavx512f)

2016-10-04  Richard Biener  <rguenther@suse.de>

PR middle-end/77833
* explow.c (plus_constant): Verify the mode of the constant
pool offset before calling plus_constant.

* gcc.target/i386/pr77833.c: New testcase.

From-SVN: r240743

re PR middle-end/77407 (Optimize integer i / abs (i) into the sign of i)

2016-10-04  Richard Biener  <rguenther@suse.de>

PR middle-end/77407
* match.pd (X / abs (X) -> X < 0 ? -1 : 1): Drop vector
type support, mark with :C.
(X / -X -> -1): Mark with :C.

From-SVN: r240742

Restore --enable-objc-gc support

* configure.ac (target_libraries): Readd target-boehm-gc.
Restore --enable-objc-gc handling.
* configure: Regenerate.

From-SVN: r240740

defaults.h (JCR_SECTION_NAME, [...]): Remove.

gcc/
* defaults.h (JCR_SECTION_NAME, TARGET_USE_JCR_SECTION): Remove.
* system.h (JCR_SECTION_NAME, TARGET_USE_JCR_SECTION): Poison.
* doc/tm.texi.in (TARGET_USE_JCR_SECTION): Remove.
* doc/tm.texi: Regenerated.
* config/i386/mingw32.h (TARGET_USE_JCR_SECTION): Remove.
* config/i386/cygming.h (TARGET_USE_JCR_SECTION): Remove.
* config/darwin.h (JCR_SECTION_NAME): Remove.
* config/pa/pa64-hpux.h (JCR_SECTION_NAME): Remove.
* config/rs6000/aix71.h (TARGET_USE_JCR_SECTION): Remove.
* config/rs6000/aix51.h (TARGET_USE_JCR_SECTION): Remove.
* config/rs6000/aix52.h (TARGET_USE_JCR_SECTION): Remove.
* config/rs6000/aix53.h (TARGET_USE_JCR_SECTION): Remove.
* config/rs6000/aix61.h (TARGET_USE_JCR_SECTION): Remove.
gcc/c-family/
* c-cppbuiltin.c (c_cpp_builtins): Don't define
__LIBGCC_JCR_SECTION_NAME__.
libgcc/
* config/i386/cygming-crtbegin.c (_Jv_RegisterClasses): Remove.
(__JCR_LIST__): Remove.
(__gcc_register_frame): Don't attempt to _Jv_RegisterClasses.
* config/i386/cygming-crtend.c (__JCR_END__): Remove.
* config/ia64/crtbegin.S (__JCR_LIST__): Remove.
* config/ia64/crtend.S (__JCR_END__): Remove.
* crtstuff.c: Remove __LIBGCC_JCR_SECTION_NAME__ from preprocessor
conditionals.
(__JCR_LIST__, __JCR_END__): Remove.
(frame_dummy): Don't attempt to _Jv_RegisterClasses.
(__do_global_ctors_1): Likewise.

From-SVN: r240739

Daily bump.

From-SVN: r240738

shared_ptr.cc (mask, [...]): Move declaration...

2016-10-03  François Dumont  <fdumont@gcc.gnu.org>

* src/c++11/shared_ptr.cc (mask, invalid, get_mutex): Move
declaration...
* src/c++11/mutex_pool.h: ... here. New.
* src/c++11/debug.cc: Use latter.

From-SVN: r240732

Fix ChangeLog entry for r240730

From-SVN: r240731

ipa-cp.c (propagate_bits_accross_jump_function): Introduce space between callee name and param in dump message in call to fprintf.

2016-10-03  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

* ipa-cp.c (propagate_bits_accross_jump_function): Introduce space
between callee name and param in dump message in call to fprintf.

From-SVN: r240730

MAINTAINERS: Move several inactive maintainers to the write-after-approval section.

* MAINTAINERS: Move several inactive maintainers to the
write-after-approval section.

From-SVN: r240729

re PR tree-optimization/71550 (wrong code at -O3 on x86_64-linux-gnu)

PR tree-optimization/71550
PR tree-optimization/71403
* tree-ssa-threadbackward.c: Include tree-vectorizer.h
(profitable_jump_thread_path): Also return boolean indicating if
the realized path will create an irreducible loop.
Remove loop depth tests from 71403.
(fsm_find_control_statement_thread_paths): Remove loop depth tests
from 71403.  If threading will create an irreducible loop, then
throw away loop iteration and related information.

PR tree-optimization/71550
PR tree-optimization/71403
* gcc.c-torture/execute/pr71550.c: New test.

From-SVN: r240727

re PR go/77809 ("_LITTLE_ENDIAN" redefined)

PR go/77809

    libgo: strip most C macros from runtime.inc

    The Go runtime package is picking up C macros from runtime_sysinfo.go
    and then re-exporting them to runtime.inc.  This can cause name
    conflicts.  Change the Makefile so that we only put the macros we need
    into runtime.inc.  These are the constants that are actually defined by
    Go code, not runtime_sysinfo.go.  There are only a few, so we can
    pattern match.

    This is an additional hack on runtime.inc.  The long term goal is to
    convert the runtime package to Go and eliminate runtime.inc entirely, so
    a few hacks seem acceptable.

    Fixes GCC PR 77809.

    Reviewed-on: https://go-review.googlesource.com/30167

From-SVN: r240724

Define std::gcd and std::lcm for C++17

* doc/xml/manual/status_cxx2017.xml: Update gcd/lcm status.
* doc/html/*: Regenerate.
* include/experimental/numeric (__abs): Move to <numeric>.
(gcd, lcm): Use __detail::gcd and __detail::lcm.
* include/std/numeric (__detail::__abs_integral)
(__detail::__gcd, __detail::__lcm): Define.
(gcd, lcm): Define for C++17.
* testsuite/26_numerics/gcd/1.cc: New test.
* testsuite/26_numerics/lcm/1.cc: New test.
* testsuite/experimental/numeric/gcd.cc: Swap contents with ...
* testsuite/experimental/numeric/lcd.cc: ... this.

From-SVN: r240723

configure.ac (strict_warn): Merge -Wmissing-format-attribute and -Woverloaded-virtual checks for warning...

* configure.ac (strict_warn): Merge -Wmissing-format-attribute and
-Woverloaded-virtual checks for warning options.
* configure: Regenerate.

From-SVN: r240721

Fix libstdc++ versioned namespace build

PR libstdc++/68323
PR libstdc++/77794
* config/abi/pre/gnu-versioned-namespace.ver: Add exports for
__cxa_thread_atexit and __gnu_cxx::__freeres.
* include/Makefile.am: Add <experimental/bits/lfts_config.h>
* include/Makefile.in: Regenerate.
* include.bits/basic_string.h: Fix nesting of versioned namespaces.
* include/bits/c++config: Declare versioned namespaces for literals.
* include/bits/regex.h (basic_regex, match_results): Add workarounds
for PR c++/59256.
* include/bits/uniform_int_dist.h: Fix nesting of versioned namespace.
* include/std/chrono: Likewise.
* include/std/complex: Likewise.
* include/std/string_view: Likewise.
* include/std/variant: Likewise. Add workaround for PR c++/59256.
* include/experimental/bits/fs_fwd.h: Declare versioned namespace.
* include/experimental/bits/lfts_config.h: Declare versioned
namespaces.
* include/experimental/algorithm: Include
<experimental/bits/lfts_config.h>.
* include/experimental/any: Likewise.
* include/experimental/bits/erase_if.h: Likewise.
* include/experimental/chrono: Likewise.
* include/experimental/functional: Likewise.
* include/experimental/memory_resource: Likewise.
* include/experimental/optional: Likewise.
* include/experimental/propagate_const: Likewise.
* include/experimental/random: Likewise.
* include/experimental/ratio: Likewise.
* include/experimental/system_error: Likewise.
* include/experimental/tuple: Likewise.
* include/experimental/type_traits: Likewise.
* include/experimental/utility: Likewise.
* include/experimental/string_view: Likewise. Fix nesting of
versioned namespaces.
* include/experimental/bits/string_view.tcc: Reopen inline namespace
for non-inline function definitions.
* testsuite/17_intro/using_namespace_std_exp_neg.cc: New test.
* testsuite/20_util/duration/literals/range.cc: Adjust dg-error line.
* testsuite/experimental/any/misc/any_cast_neg.cc: Likewise.
* testsuite/experimental/propagate_const/assignment/move_neg.cc:
Likewise.
* testsuite/experimental/propagate_const/cons/move_neg.cc: Likewise.
* testsuite/experimental/propagate_const/requirements2.cc: Likewise.
* testsuite/experimental/propagate_const/requirements3.cc: Likewise.
* testsuite/experimental/propagate_const/requirements4.cc: Likewise.
* testsuite/experimental/propagate_const/requirements5.cc: Likewise.
* testsuite/ext/profile/mutex_extensions_neg.cc: Likewise.

From-SVN: r240714

re PR preprocessor/77699 (suspicious code in get_next_line)

2016-10-03  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR preprocessor/77699
        * input.c (maybe_grow): Don't allocate one byte extra headroom.
        (get_next_line): Return false on error.
        (read_next_line): Removed, use get_next_line instead.
        (read_line_num): Don't copy the line.
        (location_get_source_line): Don't use static data.
        (selftest::test_reading_source_line): Add more test cases.

From-SVN: r240713

Fix failing gcc.target/avr/torture/builtins_error.c

The compiler defaults to thin LTO objects if built with linker plugin
support, and in that case, the error expected by the testcase appears
only at link time, if at all. Forcing fat LTO object file creation
generates the error consistently at compile time, as expected.

gcc/testsuite/ChangeLog:

2016-10-03  Senthil Kumar Selvaraj  <senthil_kumar.selvaraj@atmel.com>

* gcc.target/avr/torture/builtins-error.c: Add -ffat-lto-objects
option.

From-SVN: r240711

Ensure "C++" language linkage for std::abs overloads

PR libstdc++/77814
* include/bits/std_abs.h: Use "C++" language linkage.
* testsuite/17_intro/headers/c++2011/linkage.cc: Move <complex.h> to
the end. Add <stdalign.h>.

From-SVN: r240710

re PR libstdc++/77802 (Boost Fiber doesn't compile)

    PR libstdc++/77802
    * testsuite/20_util/tuple/77802.cc: New.

    Revert:
    2016-09-21  Ville Voutilainen  <ville.voutilainen@gmail.com>
    Implement LWG 2729 for tuple.
    * include/std/tuple (_Tuple_impl(_Tuple_impl&&)):
    Suppress conditionally.
    (_Tuple_impl(_Tuple_impl<_Idx, _UHead, _UTails...>&&)): Likewise.
    (__is_tuple_impl_trait_impl, __is_tuple_impl_trait): New.
    (_Tuple_impl(const _Head&)): Constrain.
    (_Tuple_impl(_UHead&&)): Likewise.
    (_Tuple_impl(_Tuple_impl&&)): Suppress conditionally.
    (_Tuple_impl(const _Tuple_impl<_Idx, _UHead>&)): Constrain.
    (_Tuple_impl(_Tuple_impl<_Idx, _UHead>&&)): Likewise.
    (operator=(const tuple&)): Enable conditionally.
    (operator=(tuple&&)): Suppress conditionally.
    (operator=(const tuple<_UElements...>&)): Constrain.
    (operator=(tuple<_UElements...>&&)): Likewise.
    (operator=(const tuple&)): Enable conditionally (2-param tuple).
    (operator=(tuple&&)): Suppress conditionally (2-param tuple).
    (operator=(const tuple<_U1, _U2>&)): Constrain.
    (operator=(tuple<_U1, _U2>&&)): Likewise.
    (operator=(const pair<_U1, _U2>&)): Likewise.
    (operator=(pair<_U1, _U2>&&)): Likewise.
    * testsuite/20_util/tuple/element_access/get_neg.cc: Adjust.
    * testsuite/20_util/tuple/tuple_traits.cc: New.

From-SVN: r240709

Revert: [RTL ifcvt] Transform (X == CST) ? -CST : Y into (X == CST) ? -X : Y when conditional negation is available

Revert
2016-09-30  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

* ifcvt.c (noce_try_avoid_const_materialization): New function.
(noce_process_if_block): Use it.

* gcc.target/aarch64/ifcvt_avoid_const_materialization_1.c: New test.

From-SVN: r240708