From-SVN: r227704

gcc/

	* config/sparc/constraints.md: Make "U" constraint a real register
	constraint.
	* config/sparc/sparc.c (TARGET_LRA_P): Define.
	(D_MODES, DF_MODES): Add missing cast.
	(TF_MODES, TF_MODES_NO_S): Include T_MODE.
	(OF_MODES, OF_MODES_NO_S): Include O_MODE.
	(sparc_register_move_cost): Decrease Niagara/UltrsSPARC memory
	cost to 8.
	* config/sparc/sparc.h (PROMOTE_MODE): Define.
	* config/sparc/sparc.md (*movsi_lo_sum, *movsi_high): Do not
	provide these insn when flag_pic.

From-SVN: r227701

    
    Fixes golang/go#11577.
    
    Reviewed-on: https://go-review.googlesource.com/14182

From-SVN: r227699

2015-09-11  Jeff Law  <law@redhat.com>

	PR tree-optimization/47679
	* tree-ssa-dom.c (struct cond_equivalence): Update comment.
	* tree-ssa-scopedtables.h (class const_and_copies): Prefix data
	member with m_.  Update inline member functions as necessary.  Add
	toplevel comment.
	* tree-ssa-scopedtables.c: Update const_and_copies's member
	functions to use m_ prefix to access the stack.

From-SVN: r227697

The variable `static bool enable_polly_vector' is always assigned to false.
This results in dead code in optimize-isl.c.  No functional change intended.

Passes bootstrap and regtest.

gcc/ChangeLog:

2015-09-11  Aditya Kumar  <aditya.k7@samsung.com>

	* graphite-optimize-isl.c (disable_tiling): Remove.
	(get_schedule_for_band): Do not use disable_tiling.
	(get_prevector_map): Delete function.
	(enable_polly_vector): Remove.
	(get_schedule_for_band_list): Remove dead code.

From-SVN: r227696

Refactor graphite-optimize-isl.c. Renamed function name, variable names etc.,
and indented the source according to gcc style guidelines.  Modified comments
accordingly. No functional change intended.

Passes regtest and bootstap on x86_64.

gcc/ChangeLog:

2015-09-10  Aditya Kumar  <aditya.k7@samsung.com>

        * graphite-optimize-isl.c (get_tile_map): Refactor.
        (get_schedule_for_band): Same.
        (getScheduleForBand): Same.
        (get_prevector_map): Same.
        (get_schedule_for_band_list): Same.
        (get_schedule_map): Same.
        (get_single_map): Same.
        (apply_schedule_map_to_scop): Same.
        (optimize_isl): Same.

From-SVN: r227695

	* Makefile.am (backtrace.lo): Depend on internal.h.
	(sort.lo, stest.lo): Add explicit dependencies.
	* Makefile.in: Rebuild.

From-SVN: r227691

	PR libstdc++/67173
	* src/filesystem/ops.cc (filesystem::canonical): Allocate buffer for
	realpath on Solaris 10.

From-SVN: r227689

	PR libstdc++/65142
	* src/c++11/random.cc (random_device::_M_getval()): Check read result.

From-SVN: r227687

2015-09-11  John Marino  <gnugcc@marino.st>
	    Jonathan Wakely  <jwakely@redhat.com>

	PR libstdc++/67096
	* testsuite/22_locale/codecvt/in/wchar_t/4.cc: Do not test code points
	above U+10FFFF.
	* testsuite/22_locale/codecvt/in/wchar_t/8.cc: Likewise.
	* testsuite/22_locale/codecvt/in/wchar_t/9.cc: Likewise.
	* testsuite/22_locale/codecvt/length/wchar_t/4.cc: Likewise.
	* testsuite/22_locale/codecvt/out/wchar_t/4.cc: Likewise.
	* testsuite/22_locale/codecvt/unshift/wchar_t/4.cc: Likewise.
	* testsuite/27_io/basic_filebuf/seekoff/wchar_t/1.cc: Likewise.
	* testsuite/27_io/basic_filebuf/seekpos/wchar_t/9874.cc: Likewise.
	* testsuite/27_io/basic_filebuf/underflow/wchar_t/1.cc: Likewise.
	* testsuite/27_io/basic_filebuf/underflow/wchar_t/2.cc: Likewise.
	* testsuite/27_io/basic_filebuf/underflow/wchar_t/3.cc: Likewise.
	* testsuite/27_io/objects/wchar_t/10.cc: Likewise.
	* testsuite/27_io/objects/wchar_t/11.cc: Likewise.
	* testsuite/27_io/objects/wchar_t/12.cc: Likewise.
	* testsuite/27_io/objects/wchar_t/13.cc: Likewise.

Co-Authored-By: Jonathan Wakely <jwakely@redhat.com>

From-SVN: r227686

	PR libstdc++/64857
	* doc/xml/manual/using.xml: Improve aggregate header documentation.
	* doc/html/manual/*: Regenerate.
	* include/precompiled/extc++.h: Include <bits/stdc++.h> for C++11
	and later and include more extension headers.
	* testsuite/17_intro/headers/c++1998/all_attributes.cc: Remove
	redundant header.
	* testsuite/17_intro/headers/c++200x/: Rename to c++2011.
	* testsuite/17_intro/headers/c++2014/all_attributes.cc: Remove
	redundant headers.
	* testsuite/17_intro/headers/c++2014/all_no_exceptions.cc: New.
	* testsuite/17_intro/headers/c++2014/all_no_rtti.cc: New.
	* testsuite/17_intro/headers/c++2014/all_pedantic_errors.cc: New.
	* testsuite/17_intro/headers/c++2014/operator_names.cc: New.
	* testsuite/17_intro/headers/c++2014/stdc++.cc: New.
	* testsuite/17_intro/headers/c++2014/stdc++_multiple_inclusion.cc:
	New.

From-SVN: r227684

	* gcc.dg/pie-link.c: Add -pie to dg-options.

From-SVN: r227682

	PR libstdc++/58265
	* doc/xml/manual/intro.xml: Document LWG 2063 and 2064 resolutions.
	* doc/html/manual/bugs.html: Regenerate.
	* include/bits/basic_string.h (basic_string): Implement N4258. Add
	correct exception-specifications and propagate allocators correctly.
	* include/bits/basic_string.tcc (basic_string::swap): Propagate
	allocators correctly.
	* include/debug/string (__gnu_debug::basic_string): Add correct
	exceptions-specifications and allcoator-extended constructors.
	* testsuite/21_strings/basic_string/allocator/char/copy.cc: New.
	* testsuite/21_strings/basic_string/allocator/char/copy_assign.cc:
	New.
	* testsuite/21_strings/basic_string/allocator/char/minimal.cc: New.
	* testsuite/21_strings/basic_string/allocator/char/move.cc: New.
	* testsuite/21_strings/basic_string/allocator/char/move_assign.cc:
	New.
	* testsuite/21_strings/basic_string/allocator/char/noexcept.cc: New.
	* testsuite/21_strings/basic_string/allocator/char/swap.cc: New.
	* testsuite/21_strings/basic_string/allocator/wchar_t/copy.cc: New.
	* testsuite/21_strings/basic_string/allocator/wchar_t/copy_assign.cc:
	New.
	* testsuite/21_strings/basic_string/allocator/wchar_t/minimal.cc: New.
	* testsuite/21_strings/basic_string/allocator/wchar_t/move.cc: New.
	* testsuite/21_strings/basic_string/allocator/wchar_t/move_assign.cc:
	New.
	* testsuite/21_strings/basic_string/allocator/wchar_t/noexcept.cc: New.
	* testsuite/21_strings/basic_string/allocator/wchar_t/swap.cc: New.
	* testsuite/util/testsuite_allocator.h (tracker_allocator): Define
	defaulted assignment operators.

From-SVN: r227681

	PR libstdc++/65092
	* include/bits/stl_queue.h (queue, priority_queue): Add
	allocator-extended constructors.
	* include/bits/stl_stack.h (stack): Likewise.
	* testsuite/23_containers/priority_queue/requirements/
	uses_allocator.cc: Test allocator-extended constructors.
	* testsuite/23_containers/queue/requirements/uses_allocator.cc:
	Likewise.
	* testsuite/23_containers/stack/requirements/uses_allocator.cc:
	Likewise.

From-SVN: r227680

    
movtf is unnecessary as a separate expander. Move this to be with
the standard scalar floating point expanders.

Achieved by adding a new iterator and then using the same.

Tested cross aarch64-none-elf and no regressions.

Rebased version from https://gcc.gnu.org/ml/gcc-patches/2015-09/msg00767.html


2015-09-10  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

	PR target/63304
        * config/aarch64/aarch.md (mov<mode>:GPF_F16): Use GPF_TF_F16.
        (movtf): Delete.
        * config/aarch64/iterators.md (GPF_TF_F16): New.
        (GPF_F16): Delete.

From-SVN: r227679

gcc/testsuite

	* gcc.target/arm/pr63210.c (dg-skip-if): Skip armv4t.
	(dg-additional-options): Add -march=armv5t if arm_arch_v5t_ok.

From-SVN: r227677

	* download_prerequisites: Make sure that script is run from
	top level source directory.

From-SVN: r227674

    
    Reviewed-on: https://go-review.googlesource.com/13421

From-SVN: r227673

From-SVN: r227671

	* config/nvptx/nvptx.c (nvptx_expand_call): Add spacing.
	(nvptx_reorg): Adjust comments.

From-SVN: r227667

	PR bootstrap/67363
	* configure.ac: Check if setenv and unsetenv are declared.
	* configure: Rebuild.
	* config.in: Rebuild.
	* system.h: Declare setenv and unsetenv if not declared.

From-SVN: r227666

    
    From Rainer Orth.
    
    Solaris 12 changes the stat_[amc]tim members of struct stat from
    timestruc_t to timespec_t for XPG7 compatiblity, thus breaking the libgo
    build.  The following patch checks for this change and uses the common
    stat_atim.go if appropriate.
    
    Reviewed-on: https://go-review.googlesource.com/14495

From-SVN: r227665

rs6000.c (swap_web_entry): Update preceding commentary to simplify permute mask adjustment equation.

[gcc]

2015-09-10  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	* config/rs6000/rs6000.c (swap_web_entry): Update preceding
	commentary to simplify permute mask adjustment equation.
	(special_handling_values): Add SH_VPERM.
	(const_load_sequence_p): New function.
	(insn_is_swappable_p): Add logic to recognize an UNSPEC_VPERM with
	the mask loaded from the constant pool.
	(adjust_vperm): New function.
	(handle_special_swappables): Call adjust_vperm.
	(dump_swap_insn_table): Handle SH_VPERM.

[gcc/testsuite]

2015-09-10  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	* gcc.target/powerpc/swaps-p8-20.c: New test.
	* gcc.target/powerpc/swaps-p8-21.c: New test.

From-SVN: r227664

From-SVN: r227661

	* testsuite/21_strings/basic_string/operators/char/1.cc: Verify the
	string contents.

From-SVN: r227660

	* shrink-wrap.c (requires_stack_frame_p): Remove static.
	* shrink-wrap.h (requires_stack_frame_p): Put back.

From-SVN: r227659

Some host-target combinations get bogus warnings about orig_dup
being used uninitialized.  I tried to coerce the current uninit
pass to handle this case, but the patch I ended up with only worked
by accident because of the strange way in which the pass handles
limit cases.  (If we have more than MAX_NUM_CHAINS chains, it silently
drops the excess chains and continues regardless, so it's quite easy
to come up with cases where the predicates for either the definition
or the use consider an arbitrary subset of the actual conditions.)

For now this patch turns -Wmaybe-uninitialized into a warning for
the affacted function.  It will be a warning even if someone turns
off warnings on the command line, but I don't think that's important.

Bootstrapped and regression-tested on x86_64-linux-gnu.  Also tested
with a cross-compiler to sparc-linux-gnu (which also triggered the
warning for me).

gcc/
	* reload1.c (elimination_costs_in_insn): Locally turn
	-Wmaybe-uninitialized into a warning.

From-SVN: r227658

    
    The gcc backend throws an internal error when trying to get the size
    of a type which is larger than the amount of address space on the
    machine.  This patch catches this error and reports it in a user
    friendly way.
    
    Fixes golang/go#11554.
    
    Reviewed-on: https://go-review.googlesource.com/13684

	* go-gcc.cc (Gcc_backend::type_size): Return -1 for
	unrepresentable size.

From-SVN: r227656

2015-09-10  Segher Boessenkool  <segher@kernel.crashing.org>

	* shrink-wrap.c (requires_stack_frame_p): Make static.
	(prepare_shrink_wrap): Likewise.
	(dup_block_and_redirect): Likewise.
	* shrink-wrap.h: Remove declarations of those functions.

From-SVN: r227652

2015-09-09  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/67526
	* gfortran.dg/pr67526.f90: New test.

2015-09-09  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/67526
	* expr.c (gfc_check_init_expr): Do not dereference a NULL pointer.

From-SVN: r227651

re PR c++/67318 (Parsing error when using abbreviated integral type names in template parameter pack declaration)

/cp
2015-09-10  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/67318
	* parser.c (cp_parser_parameter_declaration): Consume the ellipsis
	and set template_parameter_pack_p also when the type is null.

/testsuite
2015-09-10  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/67318
	* g++.dg/cpp0x/variadic166.C: New.

From-SVN: r227650

If an argument is marked as nonnull then passing in a NULL argument
will produce bad results even if the code checks against NULL. GCC
might optimize such checks away so warn the user when the function
contains such comparisons.

nn.c: In function ‘foo’:
nn.c:6:27: warning: nonnull argument ‘bar’ compared to NULL [-Wnonnull]
 void foo(void *bar) { if (!bar) abort(); }
                           ^
gcc/ChangeLog

	* doc/invoke.texi (Wnonnull): Also warns when comparing against NULL.

gcc/c/ChangeLog

       * c-typeck.c (build_binary_op): Check and warn when nonnull arg
       parm against NULL.

gcc/cp/ChangeLog

       * typeck.c (cp_build_binary_op): Check and warn when nonnull arg
       parm against NULL.

gcc/testsuite/ChangeLog

       * c-c++-common/nonnull-1.c: New test.

From-SVN: r227649

2015-09-10  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/66993
	* module.c (read_module): If a symtree exists and the symbol has
	been associated in a submodule from a parent (sub)module, attach
	the symbol to a 'unique symtree' and the new symbol to the
	existing symtree.

2015-09-10  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/66993
	* gfortran.dg/submodule_11.f08: New test.

From-SVN: r227648

gcc/
	PR target/67506
	* config/sh/sh.c (sh_extending_set_of_reg::use_as_extended_reg): Add
	missing simplify_gen_subreg.

gcc/testsuite/
	PR target/67506
	* gcc.c-torture/compile/pr67506.c: New test.

From-SVN: r227646

gcc/ChangeLog:

2015-09-10  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* config/s390/s390.c (s390_contiguous_bitmask_vector_p): Reject if
	the vector element is bigger than 64 bit.

	gcc/testsuite/ChangeLog:

2015-09-10  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* gcc.target/s390/vector/vec-genbytemask-1.c: Add check for V1TI
	initialization with a byte mask.  No change expected here.
	* gcc.target/s390/vector/vec-genmask-1.c: Fix whitespace.
	* gcc.target/s390/vector/vec-genmask-2.c: Add check for V1TI
	initialization with contigious bitmask.  Literal pool is expectd
	to be used here.

From-SVN: r227637

gcc/ChangeLog:

2015-09-10  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* config/s390/vx-builtins.md ("vec_vmal<mode>", "vec_vmah<mode>")
	("vec_vmalh<mode>"): Change mode iterator from VI_HW to VI_HW_QHS.

From-SVN: r227636

gcc/ChangeLog:

2015-09-10  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* config/s390/s390.c: Add V1TImode to constant pool modes.

From-SVN: r227635

	PR target/67439
	* config/arm/arm.md (*arm32_movhf): Remove !arm_restrict_it from
	predicate.  Set predicable_short_it attr to "no".

	* gcc.target/arm/pr67439_1.c: New test.

From-SVN: r227630

Patch background details:

    https://gcc.gnu.org/ml/gcc-patches/2015-08/msg01147.html

gcc/
  PR rtl-optimization/67421
  * expr.c (expand_expr_real_2): Cost instrcution sequences when doing left wide
  shift tranformation.

From-SVN: r227629

2015-09-10  Claudiu Zissulescu  <claziss@synopsys.com>

        * common/config/arc/arc-common.c: Remove references to A5.
        * config/arc/arc-opts.h: Likewise.
        * config/arc/arc.c, config/arc/arc.h, config/arc/arc.md: Likewise.
        * config/arc/arc.opt, config/arc/constraints.md: Likewise.
        * config/arc/t-arc-newlib: Likewise.

From-SVN: r227627