c-ubsan.c (ubsan_instrument_division): Remove unnecessary code.

* c-ubsan.c (ubsan_instrument_division): Remove unnecessary code.
(ubsan_instrument_shift): Likewise.

* c-c++-common/ubsan/bounds-11.c: New test.
* c-c++-common/ubsan/bounds-12.c: New test.

From-SVN: r228114

re PR sanitizer/64906 (-fsanitize=integer-divide-by-zero creates false -Wmaybe-uninitialized warning)

PR sanitizer/64906
* c-ubsan.c (ubsan_instrument_division): Also pre-evaluate OP1.

* c-c++-common/ubsan/pr64906.c: New test.

From-SVN: r228112

Change IA MCU processor from iamcu to lakemount

The first IA MCU processor will be Lakemount.  This patch changes IA MCU
processor name from iamcu to lakemount.

gcc/

* config.gcc (x86_archs): Replace iamcu with lakemount.
(with_cpu): Likewise.
(with_arch): Likewise.
* doc/invoke.texi: Likewise.
* config/i386/i386-c.c (ix86_target_macros_internal): Replace
PROCESSOR_IAMCU with PROCESSOR_LAKEMOUNT.  Replace
__tune_iamcu__ with __tune_lakemount__.
* config/i386/i386.c (iamcu_cost): Renamed to ...
(lakemount_cost): This.
(m_IAMCU): Renamed to ...
(m_LAKEMOUNT): This.
(initial_ix86_arch_features): Replace m_IAMCU with m_LAKEMOUNT.
(processor_target_table): Replace "iamcu" with "lakemount".
(processor_alias_table): Likewise.
(ix86_issue_rate): Replace PROCESSOR_IAMCU with
PROCESSOR_LAKEMOUNT.
(ix86_adjust_cost): Likewise.
(ia32_multipass_dfa_lookahead): Likewise.
* config/i386/i386.h (processor_type): Likewise.
* config/i386/x86-tune.def: Replace m_IAMCU with m_LAKEMOUNT.

gcc/testsuite/

* gcc.target/i386/pr66749.c (dg-options): Replace -mtune=iamcu
with -mtune=lakemount.
* gcc.target/i386/pr66821.c (dg-options): Likewise.
* gcc.target/i386/pr67329.c (dg-options): Likewise.

From-SVN: r228109

Daily bump.

From-SVN: r228108

pa-linux.h (HAVE_sync_compare_and_swapdi): Define.

* config/pa/pa-linux.h (HAVE_sync_compare_and_swapdi): Define.
* config/pa/pa-protos.h (pa_maybe_emit_compare_and_swap_exchange_loop):
Declare.
* config/pa/pa.c (pa_init_libfuncs): Init sync libfuncs up to 8 bytes.
(pa_expand_compare_and_swap_loop): New.
(pa_maybe_emit_compare_and_swap_exchange_loop): New.
* config/pa/pa.md (atomic_storeqi, atomic_storehi, atomic_storesi,
atomic_storesf, atomic_loaddf, atomic_storedf): New expanders.
(atomic_loaddf_1, atomic_storedf_1): New insn patterns.
(atomic_loaddi, atomic_loaddi_1, atomic_storedi, atomic_storedi_1):
Revise.

From-SVN: r228104

re PR other/57195 (Mode attributes with specific mode iterator can not be used as mode iterators in *.md files)

2015-09-24  Michael Collison  <michael.collison@linaro.org>

PR other/57195
* read-md.c (read_name): Allow mode iterators inside angle
brackets in rtl expressions.

From-SVN: r228102

re PR target/61578 (Code size increase for ARM thumb compared to 4.8.x when compiling with -Os)

2015-09-24  Vladimir Makarov  <vmakarov@redhat.com>

PR target/61578
* ira-color.c (update_allocno_cost): Add parameter.
(update_costs_from_allocno): Decrease conflict cost.  Pass the new
parameter.

From-SVN: r228097

fdiagnostics-color=never does not disable color for some diagnostics

Actually, I was trying to reject non-warning options as argument to
-Werror=. However, the new test fails because -fdiagnostics-color=never is
always placed by the driver after the warning options when calling the compiler
proper. This patch prunes all -fdiagnostics-color from the command-line but the
last one, which is moved to the first position.

gcc/ChangeLog:

2015-09-24  Manuel López-Ibáñez  <manu@gcc.gnu.org>

PR driver/67640
* opts-common.c (prune_options): Discard all -fdiagnostics-color
but the last one, which is moved to the front to be processed
first.
* opts.c (enable_warning_as_error): Reject options that do not
control warnings.

gcc/testsuite/ChangeLog:

2015-09-24  Manuel López-Ibáñez  <manu@gcc.gnu.org>

PR driver/67640
* gcc.dg/Werror-13.c: New test.

From-SVN: r228094

[AArch64] Handle const address in aarch64_print_operand

2015-09-24  Jiong Wang  <jiong.wang@arm.com>

* config/aarch64/aarch64.c (aarch64_print_operand): Add "CONST" support.

From-SVN: r228093

[AArch64] Delete aarch64_symbol_context which is not used

2015-09-24  Jiong Wang  <jiong.wang@arm.com>

* config/aarch64/aarch64-protos.h (aarch64_symbol_context): Delete.
* config/aarch64/aarch64.c (aarch64_expand_mov_immediate): Likewise.
(aarch64_cannot_force_const_mem): Likewise.
(aarch64_classify_address): Likewise.
(aarch64_classify_symbolic_expression): Likewise.
(aarch64_print_operand): Likewise.
(aarch64_classify_symbol): Likewise.
(aarch64_mov_operand_p): Likewise.
* config/aarch64/predicates.md (aarch64_valid_symref): Likewise.
(aarch64_mov_operand): Likewise.

From-SVN: r228092

Leave moved-from std::deque in a valid state

PR libstdc++/67707
* include/bits/stl_deque.h (_Deque_base::_M_move_impl): Initialize
empty object.
* testsuite/23_containers/deque/allocator/move.cc: Check moved-from
deque.

From-SVN: r228090

Fix aarch64/target_attr_10 test following r227997.

gcc/testsuite/ChangeLog:

* gcc.target/aarch64/target_attr_10.c (foo): Use dg-message for note.

From-SVN: r228088

runtime: Fix recent lfstack change on Solaris.

    Reviewed-on: https://go-review.googlesource.com/14922

From-SVN: r228087

rs6000: Fix -mdebug=stack code for spe_gp_offset

2015-09-23  Segher Boessenkool  <segher@kernel.crashing.org>

* config/rs6000/rs6000.c (debug_stack_info): Invert the test
for info->spe_gp_size.

From-SVN: r228086

re PR lto/67699 (ICE (segfault) compiling a const array with -flto)

2015-09-24  Richard Biener  <rguenther@suse.de>

PR lto/67699
* lto-cgraph.c (compute_ltrans_boundary): Do not stream
abstract origins.

* g++.dg/pr67699.C: New testcase.

From-SVN: r228084

ARM: fp16 Fix PR 67624 - Incorrect conversion of float Infinity to __fp16

PR libgcc/67624
libgcc:
* config/arm/fp16.c (__gnu_f2h_internal): Handle infinity correctly.
gcc/testsuite:
* gcc.target/arm/fp16-inf.c: New test.

From-SVN: r228082

Additional changes to switch from gimple to gimple *

gcc/
* tree-object-size.c (plus_stmt_object_size)
(cond_expr_object_size): Change the formal parameters from gimple
to gimple *.
* tree-ssa-sccvn.h (vn_nary_op_insert_stmt): Likewise.
* tree-ssa-sccvn.c (vn_nary_op_insert_stmt): Make it static.
* tree-ssa-sccvn.h (vn_nary_op_insert_stmt): Don't declare.

From-SVN: r228080

avx512vbmi-check.h (main): Fix register name while checking for AVX-512VBMI presence.

gcc/testsuite/
* gcc.target/i386/avx512vbmi-check.h (main): Fix register
name while checking for AVX-512VBMI presence.

From-SVN: r228079

Support PIE on Solaris

gcc/testsuite:
* lib/target-supports.exp (check_effective_target_pie): Check for
PIE support on Solaris 11.x and 12.

libgcc:
* config.host (*-*-solaris2*): Add t-crtstuff-pic to tmake_file.
Add crtbeginS.o, crtendS.o to extra_parts if libgcc_cv_solaris_crts.
* config/sol2/gmon.c: (monstartup): Don't write trailing NUL of
messages.
(internal_mcount): Likewise.
* config/sol2/t-sol2 (crtp.o, crtpg.o, gmon.o): Compile with
crt_compile, add CRTSTUFF_T_CFLAGS_S.

gcc:
* configure.ac (gcc_cv_ld_pie): Check for gld >= 2.26 on Solaris.
Check for ld -type pie on Solaris 11.x and 12.
* configure: Regenerate.
* config.in: Regenerate.

* gcc.c (LD_PIE_SPEC): Allow redefinition.

* config/sol2.h (STARTFILE_CRTBEGIN_SPEC): Define.
(STARTFILE_SPEC): Use it.
(ENDFILE_CRTEND_SPEC): Define.
(ENDFILE_SPEC): Use it and ENDFILE_ARCH_SPEC.
(SUBTARGET_EXTRA_SPECS): Add STARTFILE_CRTBEGIN_SPEC,
ENDFILE_ARCH_SPEC, ENDFILE_CRTEND_SPEC.
[HAVE_LD_PIE && HAVE_SOLARIS_CRTS] (LD_PIE_SPEC): Define.
(!(HAVE_LD_PIE && HAVE_SOLARIS_CRTS)] (LINK_PIE_SPEC): Define.
* config/i386/sol2.h (ENDFILE_SPEC): Remove.
(ENDFILE_ARCH_SPEC): Define.
* config/sparc/sol2.h (ENDFILE_ARCH_SPEC): Define.

From-SVN: r228078

Use CRTs provided by Solaris

gcc:
* configure.ac (gcc_cv_solaris_crts): New test.
* configure. Regenerate.
* config.in: Regenerate.
* config/sol2.h (STARTFILE_SPEC): Simplify, provide
HAVE_SOLARIS_CRTS variant.

libgcc:
* configure.ac (libgcc_cv_solaris_crts): New test.
* configure: Regenerate.
* config.in: Regenerate.
* config/sol2/crtp.c, config/sol2/crtpg.c: New files.
* config/gmon-sol2.c: Rename to ...
* config/sol2/gmon.c: ... this.
Include auto-target.h.
(internal_mcount): Wrap setup handling in !HAVE_SOLARIS_CRTS.
* config/t-sol2: Rename to ...
* config/sol2/t-sol2: ... this.
(gmon.o): Reflect renaming.
(crtp.o, crtpg.o): New rules.
* config.host (*-*-solaris2*): Reflect renaming.
Use system CRTs if present.
Remove default CRT case.

From-SVN: r228077

[tree-inline][obvious] Delete redundant count_insns_seq

* tree-inline.h (count_insns_seq): Delete prototype.
(estimate_num_insns_seq): Define prototype.
* tree-inline.c (count_insns_seq): Delete.
(estimate_num_insns_seq): Remove static qualifier.
* tree-eh.c (decide_copy_try_finally): Replace use of count_insns_seq
with estimate_num_insns_seq.

From-SVN: r228075

tree-ssa-sccvn.h (vn_reference_op_struct): Add clique and base members.

2015-09-24  Richard Biener  <rguenther@suse.de>

* tree-ssa-sccvn.h (vn_reference_op_struct): Add clique and base
members.
* tree-ssa-sccvn.c (copy_reference_ops_from_ref): Record clique
and base for MEM_REF and TARGET_MEM_REF.  Handle BIT_FIELD_REF
offset.
(ao_ref_init_from_vn_reference): Record clique and base in the
built base.
* tree-ssa-pre.c (create_component_ref_by_pieces_1): Likewise

* g++.dg/tree-ssa/restrict3.C: New testcase.

From-SVN: r228074

re PR c/48885 (missed optimization with restrict qualifier?)

2015-09-24  Richard Biener  <rguenther@suse.de>

PR tree-optimization/48885
* tree-ssa-structalias.c (visit_loadstore): Handle default defs
as not including any restrict tags from other pointers.

* gcc.dg/tree-ssa/restrict-6.c: New testcase.

From-SVN: r228073

ChangeLog: Fix whitespace.

* ChangeLog: Fix whitespace.
* testsuite/ChangeLog: Ditto.

From-SVN: r228072

Fix a -Wmisleading-indentation false-negative

gcc/c-family/ChangeLog:

* c-indentation.c (should_warn_for_misleading_indentation):
Compare next_stmt_vis_column with guard_line_first_nws instead
of with guard_line_vis_column.

gcc/testsuite/ChangeLog:

* c-c++-common/Wmisleading-indentation.c: Augment test.

From-SVN: r228071

Daily bump.

From-SVN: r228070

linux-atomic.c (__kernel_cmpxchg2): Reorder error checks.

* config/pa/linux-atomic.c (__kernel_cmpxchg2): Reorder error checks.
(__sync_fetch_and_##OP##_##WIDTH): Change result to match type of
__kernel_cmpxchg2.
(__sync_##OP##_and_fetch_##WIDTH): Likewise.
(__sync_val_compare_and_swap_##WIDTH): Likewise.
(__sync_bool_compare_and_swap_##WIDTH): Likewise.
(__sync_lock_test_and_set_##WIDTH): Likewise.
(__sync_lock_release_##WIDTH): Likewise.
(__sync_fetch_and_##OP##_4): Change result to match type of
__kernel_cmpxchg.
(__sync_##OP##_and_fetch_4): Likewise.
(__sync_val_compare_and_swap_4): Likewise.
(__sync_bool_compare_and_swap_4): likewise.
(__sync_lock_test_and_set_4): Likewise.
(__sync_lock_release_4): Likewise.
(FETCH_AND_OP_2): Add long long variants.
(OP_AND_FETCH_2): Likewise.
(COMPARE_AND_SWAP_2 ): Likewise.
(SYNC_LOCK_TEST_AND_SET_2): Likewise.
(SYNC_LOCK_RELEASE_2): Likewise.
(__sync_bool_compare_and_swap_##WIDTH): Correct return.

From-SVN: r228065

re PR go/67695 (Please improve POSIX shell compatibility of libgo/mksysinfo.sh)

PR go/67695
    mksysinfo.sh: Use = with test rather than ==.

    Fixes GCC PR 67695.

    Reviewed-on: https://go-review.googlesource.com/14858

From-SVN: r228064

Fix small typos in the coding rule enforcement warnings.

/cp
2015-09-23  Ville Voutilainen  <ville.voutilainen@gmail.com>

Fix small typos in the coding rule enforcement warnings.
* parser.c (cp_parser_namespace_definition): Replace 'namepace'
with 'namespace'.

/testsuite
2015-09-23  Ville Voutilainen  <ville.voutilainen@gmail.com>

Fix small typos in the coding rule enforcement warnings.
* g++.dg/diagnostic/disable.C: Replace 'namepace'
with 'namespace'.

From-SVN: r228061

runtime: rewrite lfstack packing/unpacking to look more like that in Go

    Reviewed-on: https://go-review.googlesource.com/13037

From-SVN: r228057

Fix --enable-offload-targets/-foffload handling, pt. 2

gcc/
* gcc.c (handle_foffload_option): Don't lose the trailing NUL
character when appending to offload_targets.

From-SVN: r228054

Fix --enable-offload-targets/-foffload handling, pt. 1

gcc/
* configure.ac (offload_targets, OFFLOAD_TARGETS): Separate
offload targets by commas, not colons.
* config.in: Regenerate.
* configure: Likewise.
* gcc.c (driver::maybe_putenv_COLLECT_LTO_WRAPPER): Due to that,
instead of setting up the default offload targets here...
(process_command): ..., do it here.
libgomp/
* plugin/configfrag.ac (OFFLOAD_TARGETS): Clarify that offload
targets are separated by commas.
* config.h.in: Regenerate.

From-SVN: r228053

Refactor omp_reduction_init: omp_reduction_init_op

gcc/
* omp-low.h (omp_reduction_init_op): Declare.
* omp-low.c (omp_reduction_init_op): New, broken out of ...
(omp_reduction_init): ... here.  Call it.
* tree-parloops.c (initialize_reductions): Use
omp_reduction_init_op.

Co-Authored-By: Nathan Sidwell <nathan@codesourcery.com>
From-SVN: r228052

re PR middle-end/67662 (-fsanitize=undefined cries wolf for X - 1 + X when X is 2**30)

2015-09-23   Richard Biener  <rguenther@suse.de>

PR middle-end/67662
* fold-const.c (fold_binary_loc): Do not reassociate two vars with
undefined overflow unless they will cancel out.

* gcc.dg/ubsan/pr67662.c: New testcase.

From-SVN: r228051

AVX-512. Fix emit in '*<mshift><mode>3' pattern.

gcc/
 * config/i386/i386.md (define_insn "*<mshift><mode>3"): Fix
 insn emit.

From-SVN: r228050

[c-family/49654/49655] reject invalid options in pragma diagnostic

Use find_opt instead of linear search through options in
handle_pragma_diagnostic (PR 49654) and reject non-warning options and
options not valid for the current language (PR 49655).

gcc/testsuite/ChangeLog:

2015-09-23  Manuel López-Ibáñez  <manu@gcc.gnu.org>

PR c/49655
* gcc.dg/pragma-diag-6.c: New test.

gcc/ChangeLog:

2015-09-23  Manuel López-Ibáñez  <manu@gcc.gnu.org>

PR c/49655
* opts.h (write_langs): Declare.
* opts-global.c (write_langs): Make it extern.

gcc/c-family/ChangeLog:

2015-09-23  Manuel López-Ibáñez  <manu@gcc.gnu.org>

PR c/49654
PR c/49655
* c-pragma.c (handle_pragma_diagnostic): Detect non-warning
options and options not valid for the current language.

From-SVN: r228049

re PR target/67391 ([SH] Convert clrt addc to normal add insn)

gcc/
PR target/67391
* config/sh/sh.md (addsi3, *addsi3_compact): Don't check for overlapping
regs when matching the pattern.

From-SVN: r228046

[AArch64] Fix vcvt_high_f64_f32 and vcvt_figh_f32_f64 intrinsics.

gcc/

* config/aarch64/aarch64-simd.md
(aarch64_float_truncate_hi_v4sf): Rewrite as an expand.
(aarch64_float_truncate_hi_v4sf_le): New.
(aarch64_float_truncate_hi_v4sf_be): Likewise.

gcc/testsuite/

* gcc.target/aarch64/advsimd-intrinsics/vcvt_high_1.c: New.

From-SVN: r228044

Limit number of symlinks that canonical() will resolve

* src/filesystem/ops.cc (canonical): Simplify error handling and
limit number of symlinks that can be resolved.

From-SVN: r228043

Fix semantics of Filesystem TS directory iterators

[class.directory_iterator] p4 and [directory_iterator.members] p4
require that only the default constructor and ignored permission denied
errors can create the end iterator.

* acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Remove _GLIBCXX_
prefix from HAVE_STRUCT_DIRENT_D_TYPE.
* config.h.in: Regenerate.
* configure: Regenerate.
* include/experimental/fs_dir.h (operator==, operator==):
Use owner_before instead of pointer equality.
(directory_iterator(std::shared_ptr<_Dir>, error_code*)): Remove.
* src/filesystem/dir.cc (ErrorCode): Remove.
(_Dir::advance): Change ErrorCode parameter to error_code*, add
directory_options parameter and check it on error.
(opendir): Rename to open_dir to avoid clashing with macro. Change
ErrorCode parameter to error_code*.
(make_shared_dir): Remove.
(native_readdir) [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Don't set errno.
(directory_iterator(std::shared_ptr<_Dir>, error_code*)): Remove.
(directory_iterator(const path&, directory_options, error_code*)):
Pass options to _Dir::advance and create non-end iterator on error.
(recursive_directory_iterator(const path&, directory_options,
error_code*)): Clear error_code on ignored error, create non-end
iterator otherwise.
(recursive_directory_iterator::increment): Pass _M_options to
_Dir::advance.
(recursive_directory_iterator::pop): Likewise.
* testsuite/experimental/filesystem/iterators/directory_iterator.cc:
New.
* testsuite/experimental/filesystem/iterators/
recursive_directory_iterator.cc: New.

From-SVN: r228042

Fix filesystem::create_directories() function

* src/filesystem/ops.cc (is_dot, is_dotdot): Define new helpers.
(create_directories): Fix error handling.
* testsuite/experimental/filesystem/operations/create_directories.cc:
New.

From-SVN: r228041

tree-ssa-structalias.c (intra_create_variable_infos): Build representatives for all restrict qualified pointer destinations.

2015-09-23  Richard Biener  <rguenther@suse.de>

* tree-ssa-structalias.c (intra_create_variable_infos): Build
representatives for all restrict qualified pointer destinations.

* g++.dg/tree-ssa/restrict2.C: Un-XFAIL testcase.

From-SVN: r228040

AVX-512. Add kshift[lr][bwdq]. Fix iterator.

gcc/
* config/i386/i386.md (define_code_attr mshift): New.
(define_mode_iterator SWI1248_AVX512BW): Rename ...
(SWI1248_AVX512BW): ... to this. Make QI enabled for TARGET_AVX512DQ
only.
(define_insn "*k<logic><mode>"): Use new iterator name.
(define_insn "*<mshift><mode>3"): New.

From-SVN: r228034

Fix use of valgrind API

gcc/
PR middle-end/67649
* memory-block.h (memory_block_pool::allocate): Use valgrind API to
mark the block as accessible.

From-SVN: r228033

Daily bump.

From-SVN: r228031

Fix -Wmisleading-indentation false-positive

gcc/c-family/ChangeLog:

* c-indentation.c (should_warn_for_misleading_indentation):
Float out and consolidate the calls to get_visual_column that
are passed guard_exploc as an argument.  Compare
next_stmt_vis_column with guard_line_first_nws instead of with
body_line_first_nws.

gcc/testsuite/ChangeLog:

* c-c++-common/Wmisleading-indentation.c: Augment test.

From-SVN: r228027

shrink-wrap: Handle multiple predecessors of prologue

The caller of try_shrink_wrapping wants to be returned a single edge to
put the prologue on.  To make that work even if there are multiple edges
(all pointing to the PRO block) that need the prologue, add a new block
that becomes the destination of all such edges, and then jumps to PRO.

In the general case, some edges to PRO will need to be redirected, and
not all edges *can* be redirected.  This adds a can_get_prologue function
that detects such cases.  This then happily can also handle the "prologue
clobbers some reg that is live on the edge we want to insert it on" case.

Not all EDGE_CROSSING edges can be redirected, so handle those the same
as EDGE_COMPLEX edges.

2015-09-22  Segher Boessenkool  <segher@kernel.crashing.org>

* function.c (thread_prologue_and_epilogue_insns): Delete
orig_entry_edge argument to try_shrink_wrapping.
* shrink-wrap.c (can_get_prologue): New function.
(can_dup_for_shrink_wrapping): Also handle EDGE_CROSSING.
(try_shrink_wrapping): Delete orig_entry_edge argument.  Use
can_get_prologue where needed.  Remove code that finds a single
edge for the prologue.  Remove code that tests if any reg clobbered
by the prologue is live on the prologue edge.  Remove code that finds
the new prologue edge after duplicating blocks.  Make a new prologue
block and edge.
* shrink-wrap.h (try_shrink_wrapping): Delete orig_entry_edge argument.

From-SVN: r228022

[PATCH] Remove undefined behaviour from hppa backend

* config/pa/pa.h (MIN_LEGIT_64BIT_CONST_INT: Avoid undefined
behavior.

From-SVN: r228021

c.opt (Wmultiple-inheritance, [...]): New C++ warnings.

c-family/
* c.opt (Wmultiple-inheritance, Wvirtual-inheritance, Wtemplates,
Wnamespaces): New C++ warnings.

cp/
* decl.c (xref_basetypes): Check virtual and/or multiple
inheritance warning.
* parser.c (cp_parser_namespace_definition): Check namespaces
warning.
* pt.c (push_template_decl_real): Check templates warning.

* doc/invoke.texi  (-Wmultiple-inheritance, -Wvirtual-inheritance,
-Wtemplates, -Wnamespaces): Document.

testsuite/
* g++.dg/diagostic/disable.C: New.

From-SVN: r228019

Disconnect -Wabi=<n> from -fabi-compat-version=<n>.

gcc/c-family/
* c-common.h (abi_compat_version_crosses): New.
(warn_abi_version): Declare.
* c-common.c: Define it.
* c-opts.c (c_common_post_options): Handle it.
flag_abi_compat_version defaults to 8.
gcc/cp/
* mangle.c (abi_warn_or_compat_version_crosses): New.
Use it instead of abi_version_crosses.
(mangle_decl): Deal with -fabi-compat-version and -Wabi separately.

From-SVN: r228017

Handle restrict pointer references as restrict in AA

2015-09-22  Tom de Vries  <tom@codesourcery.com>

PR tree-optimization/67671
* tree-ssa-structalias.c (create_variable_info_for_1): Handle restrict
pointer references as restrict.

* g++.dg/pr67671.C: New test.

From-SVN: r228015

Update Andrew Cagney's address.

From-SVN: r228014

nios2.c (nios2_legitimize_address): When handling 'reg + reloc' cases...

2015-09-22  Chung-Lin Tang  <cltang@codesourcery.com>

* config/nios2/nios2.c (nios2_legitimize_address): When handling
'reg + reloc' cases, allow first operand to be non-REG, and use
force_reg() to enforce address pattern.

From-SVN: r228012

re PR target/67480 (AVX512 bitwise logic operations pattern is incorrect)

PR target/67480

gcc/
* config/i386/sse.md (define_mode_iterator VI48_AVX_AVX512F): New.
(define_mode_iterator VI12_AVX_AVX512F): New.
(define_insn "<mask_codefor><code><mode>3<mask_name>"): Change
all iterators to VI48_AVX_AVX512F. Extract remaining modes ...
(define_insn "*<code><mode>3"): ... Into new pattern using
VI12_AVX_AVX512F iterators without masking.

gcc/testsuite/
* gcc.target/i386/pr67480.c: New test.

From-SVN: r228010

AVX-512. Introduce SKylake server CPU.

gcc/
* config.gcc: Support "skylake-avx512".
        * config/i386/i386-c.c (ix86_target_macros_internal): Handle
        PROCESSOR_SKYLAKE_AVX512.
        * config/i386/i386.c (m_SKYLAKE_AVX512): Define.
        (processor_target_table): Add "skylake-avx512".
        (PTA_SKYLAKE_AVX512): Define.
(ix86_option_override_internal): Add "skylake_avx512".
        (fold_builtin_cpu): Handle "skylake_avx512", add F_AVX512VL
F_AVX512BW, F_AVX512DQ, F_AVX512ER, F_AVX512PF, F_AVX512CD.
        * config/i386/i386.h (TARGET_SKYLAKE_AVX512): Define.
        (processor_type): Add PROCESSOR_SKYLAKE_AVX512.
* doc/invoke.texi (skylake-avx512): New.

libgcc/
* libgcc/config/i386/cpuinfo.c (enum processor_features): Add
FEATURE_AVX512VL, FEATURE_AVX512BW, FEATURE_AVX512DQ,
FEATURE_AVX512CD, FEATURE_AVX512ER, FEATURE_AVX512PF.
(get_available_features): Habdle new features.

gcc/testsuite/
        * gcc.target/i386/funcspec-5.c: Test avx512vl, avx512bw,
avx512dq, avx512cd, avx512er, avx512pf and skylake-avx512.
* gcc.target/i386/builtin_target.c: Test  avx512vl, avx512bw,
avx512dq, avx512cd, avx512er and avx512pf.

From-SVN: r228009

AVX-512. Fix patterns for kunpck insns.

gcc/
* gcc/config/i386/i386.md (define_insn "kunpckhi"): Fix
operand in pattern.
(define_insn "kunpcksi"): Ditto.
(define_insn "kunpckdi"): Ditto.

From-SVN: r228005

AVX-512. Fix kxnor insn split.

gcc/
* gcc/config/i386/i386.md (define_split not/xor SWI1248x): Use
iterator instead of fixed modes.

From-SVN: r228003

[AArch64] Use atomic load-operate instructions for update-fetch patterns.

2015-09-22  Matthew Wahab  <matthew.wahab@arm.com>

* config/aarch64/aarch64-protos.h (aarch64_gen_atomic_ldop):
Adjust declaration.
* config/aarch64/aarch64.c (aarch64_emit_bic): New.
(aarch64_gen_atomic_ldop): Adjust comment.  Add parameter
out_result.  Update to support update-fetch operations.
* config/aarch64/atomics.md (aarch64_atomic_exchange<mode>_lse):
Adjust for change to aarch64_gen_atomic_ldop.
(aarch64_atomic_<atomic_optab><mode>_lse): Likewise.
(aarch64_atomic_fetch_<atomic_optab><mode>_lse): Likewise.
(atomic_<atomic_optab>_fetch<mode>): Change to an expander.
(aarch64_atomic_<atomic_optab>_fetch<mode>): New.
(aarch64_atomic_<atomic_optab>_fetch<mode>_lse): New.

gcc/testsuite
2015-09-22  Matthew Wahab  <matthew.wahab@arm.com>

* gcc.target/aarch64/atomic-inst-ldadd.c: Add tests for
update-fetch operations.
* gcc.target/aarch64/atomic-inst-ldlogic.c: Likewise.

From-SVN: r228002

[AArch64] Use atomic load-operate instructions for fetch-update patterns.

gcc/
2015-09-22  Matthew Wahab  <matthew.wahab@arm.com>

* config/aarch64/aarch64-protos.h
(aarch64_atomic_ldop_supported_p): Declare.
* config/aarch64/aarch64.c (aarch64_atomic_ldop_supported_p): New.
(enum aarch64_atomic_load_op_code): New.
(aarch64_emit_atomic_load_op): New.
(aarch64_gen_atomic_ldop): Update to support load-operate
patterns.
* config/aarch64/atomics.md (atomic_<atomic_optab><mode>): Change
to an expander.
(aarch64_atomic_<atomic_optab><mode>): New.
(aarch64_atomic_<atomic_optab><mode>_lse): New.
(atomic_fetch_<atomic_optab><mode>): Change to an expander.
(aarch64_atomic_fetch_<atomic_optab><mode>): New.
(aarch64_atomic_fetch_<atomic_optab><mode>_lse): New.

gcc/testsuite/
2015-09-22  Matthew Wahab  <matthew.wahab@arm.com>

* gcc.target/aarch64/atomic-inst-ldadd.c: New.
* gcc.target/aarch64/atomic-inst-ldlogic.c: New.

From-SVN: r228001

[AArch64] Add atomic load-operate instructions.

2015-09-22  Matthew Wahab  <matthew.wahab@arm.com>

* config/aarch64/aarch64/atomics.md (UNSPECV_ATOMIC_LDOP): New.
(UNSPECV_ATOMIC_LDOP_OR): New.
(UNSPECV_ATOMIC_LDOP_BIC): New.
(UNSPECV_ATOMIC_LDOP_XOR): New.
(UNSPECV_ATOMIC_LDOP_PLUS): New.
(ATOMIC_LDOP): New.
(atomic_ldop): New.
(aarch64_atomic_load<atomic_ldop><mode>): New.

From-SVN: r228000

[AArch64] Make BIC, other logical instructions, available.

2015-09-22  Matthew Wahab  <matthew.wahab@arm.com>

* config/aarch64/aarch64.md
(<LOGICAL:optab>_one_cmpl_<SHIFT:optab><mode>3): Make a named
pattern.

From-SVN: r227999

[AArch64] Use atomic instructions for swap and fetch-update operations.

gcc/
2015-09-22  Matthew Wahab  <matthew.wahab@arm.com>

* config/aarch64/aarch64-protos.h (aarch64_gen_atomic_ldop):
Declare.
* config/aarch64/aarch64.c (aarch64_emit_atomic_swap): New.
(aarch64_gen_atomic_ldop): New.
(aarch64_split_atomic_op): Fix whitespace and add a comment.
* config/aarch64/atomics.md (UNSPECV_ATOMIC_SWP): New.
(aarch64_compare_and_swap<mode>_lse): Fix some whitespace.
(atomic_exchange<mode>): Replace with an expander.
(aarch64_atomic_exchange<mode>): New.
(aarch64_atomic_exchange<mode>_lse): New.
(aarch64_atomic_<atomic_optab><mode>): Fix some whitespace.
(aarch64_atomic_swp<mode>): New.

gcc/testsuite/
2015-09-22  Matthew Wahab  <matthew.wahab@arm.com>

* gcc.target/aarch64/atomic-inst-ops.inc: (TEST_MODEL): New.
(TEST_ONE): New.
        * gcc.target/aarch64/atomic-inst-swap.c: New.

From-SVN: r227998

[PATCH tree-inline] Do not say "called from here" with UNKNOWN_LOCATION

In https://sourceware.org/ml/libc-alpha/2014-12/msg00300.html, we give a
"called from here" note without actually having a location, which looks
strange. I haven't been able to generate such a testcase. If this happens,
try to at least point to the current function being called. If that location is
also unknown, skip the extra note.

gcc/ChangeLog:

2015-09-22  Manuel López-Ibáñez  <manu@gcc.gnu.org>

* tree-inline.c (expand_call_inline): Use inform for extra note.
Do not give a note with UNKNOWN_LOCATION.
Replace input_location with gimple_location (stmt).
Use true/false instead of TRUE/FALSE.

gcc/testsuite/ChangeLog:

2015-09-22  Manuel López-Ibáñez  <manu@gcc.gnu.org>

* gcc.target/i386/inline_error.c (int bar): Use dg-message for note.
* gcc.target/i386/pr57756.c (static __inline int caller): Likewise.
* gcc.target/i386/pr59789.c (f1): Likewise.
* gcc.target/i386/intrinsics_5.c (__m128i foo): Likewise.
* gcc.target/i386/intrinsics_6.c: Likewise.
* gcc.dg/winline-5.c (int t): Likewise.
* gcc.dg/winline-9.c (t): Likewise.
* gcc.dg/always_inline2.c (q): Likewise.
* gcc.dg/winline-2.c (inline int t): Likewise.
* gcc.dg/winline-6.c: Likewise.
* gcc.dg/winline-10.c (void g): Likewise.
* gcc.dg/pr49243.c (void parse): Likewise.
* gcc.dg/always_inline3.c (q2): Likewise.
* gcc.dg/winline-3.c: Likewise.
* gcc.dg/winline-7.c (inline void *t): Likewise.

From-SVN: r227997

Handle single restrict pointer in struct in create_variable_info_for_1

2015-09-22  Tom de Vries  <tom@codesourcery.com>

PR tree-optimization/67666
* tree-ssa-structalias.c (create_variable_info_for_1): Handle struct
with single field non-conservative.

* g++.dg/pr67666.C: New test.

From-SVN: r227996

re PR libgomp/67141 (wrong libgomp mutex initialisation order)

2015-09-22  Chung-Lin Tang  <cltang@codesourcery.com>

PR libgomp/67141
* oacc-int.h (goacc_host_init): Add declaration.
* oacc-host.c (goacc_host_init): Remove static and constructor attribute.
* oacc-init.c (goacc_runtime_initialize): Call goacc_host_init() at end.

From-SVN: r227994

Revert LRA SPARC changes for now.

gcc/

PR/67622
Revert:
2015-09-11  David S. Miller  <davem@davemloft.net>

* 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.

2015-09-17  David S. Miller  <davem@davemloft.net>

* config/sparc/sparc-protos.h (sparc_secondary_memory_needed):
Declare.
* config/sparc/sparc.c (sparc_secondary_memory_needed): New
function.
* config/sparc/sparc.h (SECONDARY_MEMORY_NEEDED): Use it.
(HARD_REGNO_CALLER_SAVE_MODE): Define.
* config/sparc/sparc.md (sethi_di_medlow, losum_di_medlow, seth44)
(setm44, setl44, sethh, setlm, sethm, setlo, embmedany_sethi)
(embmedany_losum, embmedany_brsum, embmedany_textuhi)
(embmedany_texthi, embmedany_textulo, embmedany_textlo): Do not
provide when flag_pic.

From-SVN: r227993

Daily bump.

From-SVN: r227992

[FT32] fixes for the default hardware startup

libgcc/
        * config/ft32/crti-hw.S: Use __PMSIZE to allow configurable
        memory layout. Deal correctly with BSS region larger than 32K.
        Handle a watchdog reset like a power-on reset. Clean up unused
        code.

From-SVN: r227986

resolve.c (nonscalar_typebound_assign): Fix typos in comment.

2015-09-21  Steven G. Kargl  <kargl@gcc.gnu.org>

* resolve.c (nonscalar_typebound_assign): Fix typos in comment.

From-SVN: r227985

re PR fortran/67615 (ICE on using arithmetic if with array instead of scalar)

2015-09-21  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/67615
* resolve.c (gfc_resolve_code): Check for scalar expression in
arithmetic-if.

2015-09-21  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/67615
* gfortran.dg/pr67615.f90: new test.

From-SVN: r227981

[PATCH] Fix undefined behavior in h8300 backend

* config/h8300/h8300.md (andsi3_ashift_n_lower): Avoid undefined
behavior.

* gcc.target/h8300/andsi3_ashift_n_lower.c: New test.

From-SVN: r227978

Complete the implementation of N4230, Nested namespace definition.

/c-family
2015-09-21  Ville Voutilainen  <ville.voutilainen@gmail.com>

Complete the implementation of N4230, Nested namespace definition.
* c-cppbuiltin.c: Add __cpp_namespace_attributes and
__cpp_nested_namespace_definitions.

/cp
2015-09-21  Ville Voutilainen  <ville.voutilainen@gmail.com>

Complete the implementation of N4230, Nested namespace definition.
* parser.c (cp_parser_namespace_definition): Support namespace
attributes both before and after the namespace identifier.

/testsuite
2015-09-21  Ville Voutilainen  <ville.voutilainen@gmail.com>

Complete the implementation of N4230, Nested namespace definition.
* g++.dg/cpp1y/feat-cxx11-neg.C: Add tests for C++17 namespace
attributes and nested namespace definitions.
* g++.dg/cpp1y/feat-cxx98-neg.C: Likewise.
* g++.dg/cpp1z/feat-cxx1z.C: Likewise.
* g++.dg/cpp1y/feat-cxx14-neg.C: New.
* g++.dg/cpp1z/namespace-attribs.C: Likewise.
* g++.dg/cpp1z/nested-namespace-def1.C: Add tests for attributes
appearing before the namespace identifier.

From-SVN: r227977

Handle lines encoded into several maps in linemap_position_for_loc_and_offset

linemap_position_for_loc_and_offset() tries to generate a location_t
encoding a column offset from the current location, for example, point
to a certain character inside a string. This is trivial to do when the
new location "fits within" the map of the original location. However,
it may happen that the (long) line corresponding to the original
location is encoded in several maps, thus the new location should
actually be encoded in a subsequent map from the original location.
This patch detects this case and adjusts the map correspondingly.

(This shows that the line-map representation is quite wasteful in this
case, because line-maps always start at column 0. That is, map[0]
highest location may encode up to line 8 column 80, then
map[1]->start_location starts encoding at line 8 column 0. Thus, there
are two location_t values that point to the same source location.)

libcpp/ChangeLog:

2015-09-21  Manuel López-Ibáñez  <manu@gcc.gnu.org>

PR c/66415
* line-map.c (linemap_position_for_loc_and_offset): Handle the
case of long lines encoded in multiple maps.

gcc/testsuite/ChangeLog:

2015-09-21  Manuel López-Ibáñez  <manu@gcc.gnu.org>

PR c/66415
* gcc.dg/cpp/pr66415-1.c: Test column number.

From-SVN: r227975

* config/spu/spu.c (spu_expand_insv): Avoid undefined behavior.

From-SVN: r227974

passes.c (rest_of_decl_compilation): Do not call dwarf2out_early_global_decl for aliases.

2015-09-21  Richard Biener  <rguenther@suse.de>

* passes.c (rest_of_decl_compilation): Do not call
dwarf2out_early_global_decl for aliases.

* g++.dg/ext/attr-alias-3.C: Add -g.

From-SVN: r227973

re PR debug/67664 (Duplicate AT_const_value attributes in some c++ cases.)

2015-09-21  Richard Biener  <rguenther@suse.de>

PR debug/67664
* dwarf2out.c (add_location_or_const_value_attribute): Remove
attribute parameter.  Early exit if either DW_AT_const_value
or DW_AT_location are present already.
(gen_variable_die): Adjust caller.
(dwarf2out_late_global_decl): Likewise.

* g++.dg/debug/dwarf2/pr67764.C: New testcase.

From-SVN: r227972

re PR target/64345 ([SH] Improve single bit extraction)

testsuite/
PR target/64345
* gcc.target/sh/pr64345-1.c: Adjust expected insn counts for SH2A.

From-SVN: r227971

re PR target/67657 ([SH][5/6 Regression]: internal compiler error: in cselib_record_set, at cselib.c:2396 when compiling libjpeg-turbo)

gcc/
PR target/67657
* config/sh/sh.c (sh_remove_overlapping_post_inc,
sh_peephole_emit_move_insn): Add new functions.
* config/sh/sh-protos.h (sh_remove_overlapping_post_inc,
sh_peephole_emit_move_insn): Declere them.
* config/sh/sh.md: Use them in various peephole2 patterns.

From-SVN: r227969

re PR middle-end/67651 (Optimizer assumes nothing can reside at address 0 despite -fno-delete-null-pointer-checks)

2015-09-21  Richard Biener  <rguenther@suse.de>

PR middle-end/67651
* rtlanal.c (nonzero_address_p): SYMBOL_REFs may have zero
address with -fno-delete-null-pointer-checks.

From-SVN: r227968

Catch excess warning in gcc.dg/pragma-diag-5.c

We xfail at emitting the correct location, but we still need to catch the
warning.

2015-09-21 Manuel López-Ibáñez <manu@gcc.gnu.org>

* gcc.dg/pragma-diag-5.c: Catch excess warning.

From-SVN: r227967

Fix bootstrap error introduced in r227870

PR libstdc++/67647
* include/bits/basic_string.h [!_GLIBCXX_USE_CXX11_ABI]
(basic_string::shrink_to_fit): Fix #endif placement.

From-SVN: r227966

[RS6000] Migrate from reduc_xxx to reduc_xxx_scal optabs

* config/rs6000/altivec.md (reduc_splus_<mode>): Rename to...
(reduc_plus_scal_<mode>): ...this, add rs6000_expand_vector_extract.
(reduc_uplus_v16qi): Remove.

* config/rs6000/vector.md (VEC_reduc_name): Change "splus" to "plus".
(reduc_<VEC_reduc_name>_v2df): Remove.
(reduc_<VEC_reduc_name>_v4sf): Remove.
(reduc_<VEC_reduc:VEC_reduc_name>_scal_<VEC_F:name>): New.

* config/rs6000/vsx.md (vsx_reduc_<VEC_reduc_name>_v2df): Declare
gen_ function by removing * prefix.
(vsx_reduc_<VEC_reduc_name>_v4sf): Likewise.

From-SVN: r227965

[PR middle-end/60832] Do not convert widest_int to tree just for printing it.

In do_warn_aggressive_loop_optimizations, we convert to a tree just to print a
widest_int. Apart from overly complicated, this results in printing '3u'
instead of just '3'.

Unfortunately, adding a printf-like conversion specifier would require making
pretty-print.c link with wide-int.cc, which will include a lot of new
dependencies into several other programs (gcov-tool for example). It would be
possible to add the conversion specifier to every FE pretty-printer, but this
still would require updating c-format.c, which is far from trivial. A simpler
approach is to convert to a string rather than to a tree.

In addition, "iteration 3 invokes undefined behavior within this loop" seems to
me clearer than "iteration 3 invokes undefined behavior; containing loop".

gcc/testsuite/ChangeLog:

2015-09-21  Manuel López-Ibáñez  <manu@gcc.gnu.org>

PR middle-end/60832
* gcc.dg/pr53265.c: Update.

gcc/ChangeLog:

2015-09-21  Manuel López-Ibáñez  <manu@gcc.gnu.org>

PR middle-end/60832
* tree-ssa-loop-niter.c (do_warn_aggressive_loop_optimizations):
Print i_bound without converting it to a tree.

From-SVN: r227964

[ARM] Replacing variable swaps that use a temporary variable with a call to std::swap in gcc/config/arm/arm.c

On behalf of <bilyan.borisov@arm.com>

2015-09-21  Bilyan Borisov  <bilyan.borisov@arm.com>

* config/arm/arm.c (thumb_output_move_mem_multiple): Replaced
operands[4] operands[5] swap with std::swap, removed tmp variable.
(arm_evpc_neon_vzip): Replaced in0/in1 and
out0/out1 swaps with std::swap, removed x variable.
(arm_evpc_neon_vtrn): Replaced in0/int1 and
out0/out1 swaos with std::swap, removed x variable.
(arm_expand_vec_perm_const_1): Replaced
d->op0/d->op1 swap with std::swap, removed x variable.
(arm_evpc_neon_vuzp): Replaced in0/in1 and
out0/out1 swaps with std::swap, removed x variable.

From-SVN: r227963

cygwin.h (STARTFILE_SPEC): Explicitly search sysroot/usr/lib/32api for additional win32 libraries...

2015-09-21  Jonathan Yong  <10walls@gmail.com>

        * config/i386/cygwin.h (STARTFILE_SPEC): Explicitly search
        sysroot/usr/lib/32api for additional win32 libraries,
        fixes failing Cygwin bootstrapping.

From-SVN: r227962

* gcc.target/arm/stack-checking.c: Skip for Thumb1.

From-SVN: r227960

invoke.texi (SH Options): Undocument SH5/SH64 related options.

gcc/
* doc/invoke.texi (SH Options): Undocument SH5/SH64 related options.

From-SVN: r227959

re PR tree-optimization/59478 (Optimize variable access via byte copy)

gcc/testsuite/
PR target/59478
* gcc.target/sh/pr59478.c: New.

From-SVN: r227958

re PR target/67126 ([SH] gcc.target/sh/pr51244-12.c failures)

gcc/
PR target/67126
* config/sh/sh.md (*reg_lsb_t): Emit bld insn on SH2A.
(*mov_t_msb_neg): Rewrite negc pattern.

gcc/testsuite/
PR target/67126
* gcc.target/sh/pr51244-12.c: Adjust testcase.
* gcc.target/sh/pr54236-2.c: Likewise.

From-SVN: r227957

Daily bump.

From-SVN: r227956

re PR middle-end/67619 (ICE at -O1 and above on x86_64-linux-gnu in int_mode_for_mode, at stor-layout.c:425)

PR middle-end/67619
* lib/target-supports.exp (check_effective_target_builtin_eh_return):
New procedure.

From-SVN: r227952

MAINTAINERS: Update email.

2015-09-20  Kai Tietz  <ktietz70@googlemail.com>

* MAINTAINERS: Update email.

From-SVN: r227951

[AArch64][5/5] Cleanup immediate generation code in aarch64_internal_mov_immediate

2015-09-20  Wilco Dijkstra  <wdijkstr@arm.com>

* config/aarch64/aarch64.c (aarch64_internal_mov_immediate): Cleanup
immediate generation code.

From-SVN: r227950

[AArch64][4/5] Remove redundant code

2015-09-20  Wilco Dijkstra  <wdijkstr@arm.com>

* config/aarch64/aarch64.c (aarch64_internal_mov_immediate): Remove
redundant immediate generation code.

From-SVN: r227949

[AArch64][3/5] Remove dead code

2015-09-20  Wilco Dijkstra  <wdijkstr@arm.com>

* config/aarch64/aarch64.c (aarch64_bitmasks): Remove.
(AARCH64_NUM_BITMASKS): Remove.
(aarch64_bitmasks_cmp): Remove.
(aarch64_build_bitmask_table): Remove.

From-SVN: r227948

[AArch64][2/5] Improve aarch64_internal_mov_immediate by using faster algorithm

2015-09-20  Wilco Dijkstra  <wdijkstr@arm.com>

* config/aarch64/aarch64.c (aarch64_internal_mov_immediate): Replace
slow immediate matching loops with a faster algorithm.

From-SVN: r227947

[AArch64][1/5] Reimplement aarch64_bitmask_imm

2015-09-20  Wilco Dijkstra  <wdijkstr@arm.com>

* config/aarch64/aarch64.c (aarch64_bitmask_imm): Reimplement using
faster algorithm.

From-SVN: r227946

pr43417.c: Move target independent test to ...

gcc/testsuite/
* gcc.target/sh/pr43417.c: Move target independent test to ...
* gcc.c-torture/compile/pr43417.c: ... here.

From-SVN: r227945

sh.exp (check_effective_target_sh4a, [...]): New effective target checks.

gcc/testsuite/
* gcc.target/sh/sh.exp (check_effective_target_sh4a,
check_effective_target_big_endian, check_effective_target_little_endian,
check_effective_target_any_fpu, check_effective_target_double_fpu,
check_effective_target_use_single_only_fpu,
check_effective_target_default_single_fpu,
check_effective_target_no_fpu, check_effective_target_has_xf_regs,
check_effective_target_has_fsca, check_effective_target_has_fsrra,
check_effective_target_has_fpchg, check_effective_target_has_dyn_shift,
check_effective_target_fmovd_enabled,
check_effective_target_has_privileged, check_effective_target_has_pref,
check_effective_target_banked_r0r7_isr,
check_effective_target_stack_save_isr): New effective target checks.
* gcc.target/sh/pr51244-16.c: Merge into pr51244-15.c.
* gcc.target/sh/pr51244-20-sh2a.c: Merge into pr51244-20.c.
* gcc.target/sh/pr51244-3.c: Merge into pr51244-2.c
* gcc.target/sh/pr54089-5.c: Merge into pr54089-4.c.
* gcc.target/sh/20080410-1.c: Use new effective target checks.
* gcc.target/sh/attr-isr-nosave_low_regs.c: Likewise.
* gcc.target/sh/attr-isr.c: Likewise.
* gcc.target/sh/fpul-usage-1.c: Likewise.
* gcc.target/sh/hiconst.c: Likewise.
* gcc.target/sh/mfmovd.c: Likewise.
* gcc.target/sh/pr21255-3.c: Likewise.
* gcc.target/sh/pr33135-1.c: Likewise.
* gcc.target/sh/pr33135-2.c: Likewise.
* gcc.target/sh/pr33135-3.c: Likewise.
* gcc.target/sh/pr33135-4.c: Likewise.
* gcc.target/sh/pr39423-2.c: Likewise.
* gcc.target/sh/pr49880-4.c: Likewise.
* gcc.target/sh/pr49880-5.c: Likewise.
* gcc.target/sh/pr50749-sf-postinc-1.c: Likewise.
* gcc.target/sh/pr50749-sf-postinc-2.c: Likewise.
* gcc.target/sh/pr50749-sf-postinc-3.c: Likewise.
* gcc.target/sh/pr50749-sf-postinc-4.c: Likewise.
* gcc.target/sh/pr50749-sf-predec-1.c: Likewise.
* gcc.target/sh/pr50749-sf-predec-2.c: Likewise.
* gcc.target/sh/pr50749-sf-predec-3.c: Likewise.
* gcc.target/sh/pr50749-sf-predec-4.c: Likewise.
* gcc.target/sh/pr50751-2.c: Likewise.
* gcc.target/sh/pr50751-3.c: Likewise.
* gcc.target/sh/pr50751-5.c: Likewise.
* gcc.target/sh/pr50751-6.c: Likewise.
* gcc.target/sh/pr50751-8.c: Likewise.
* gcc.target/sh/pr51244-15.c: Likewise.
* gcc.target/sh/pr51244-2.c: Likewise.
* gcc.target/sh/pr51244-20.c: Likewise.
* gcc.target/sh/pr51244-6.c: Likewise.
* gcc.target/sh/pr52483-4.c: Likewise.
* gcc.target/sh/pr53511-1.c: Likewise.
* gcc.target/sh/pr53512-1.c: Likewise.
* gcc.target/sh/pr53512-2.c: Likewise.
* gcc.target/sh/pr53512-3.c: Likewise.
* gcc.target/sh/pr53512-4.c: Likewise.
* gcc.target/sh/pr53513-1.c: Likewise.
* gcc.target/sh/pr54089-2.c: Likewise.
* gcc.target/sh/pr54089-3.c: Likewise.
* gcc.target/sh/pr54089-4.c: Likewise.
* gcc.target/sh/pr54602-2.c: Likewise.
* gcc.target/sh/pr54602-3.c: Likewise.
* gcc.target/sh/pr54602-4.c: Likewise.
* gcc.target/sh/pr54680.c: Likewise.
* gcc.target/sh/pr55303-1.c: Likewise.
* gcc.target/sh/pr55303-2.c: Likewise.
* gcc.target/sh/pr55303-3.c: Likewise.
* gcc.target/sh/pr56547-1.c: Likewise.
* gcc.target/sh/pr56547-2.c: Likewise.
* gcc.target/sh/pr61195.c: Likewise.
* gcc.target/sh/pr61996.c: Likewise.
* gcc.target/sh/pr6526.c: Likewise.
* gcc.target/sh/pragma-isr-nosave_low_regs.c: Likewise.
* gcc.target/sh/pragma-isr-trapa2.c: Likewise.
* gcc.target/sh/prefetch.c: Likewise.
* gcc.target/sh/rte-delay-slot.c: Likewise.
* gcc.target/sh/sh2a-band.c: Likewise.
* gcc.target/sh/sh2a-bclr.c: Likewise.
* gcc.target/sh/sh2a-bclrmem.c: Likewise.
* gcc.target/sh/sh2a-bld.c: Likewise.
* gcc.target/sh/sh2a-bor.c: Likewise.
* gcc.target/sh/sh2a-bset.c: Likewise.
* gcc.target/sh/sh2a-bsetmem.c: Likewise.
* gcc.target/sh/sh2a-bxor.c: Likewise.
* gcc.target/sh/sh2a-jsrn.c: Likewise.
* gcc.target/sh/sh2a-movi20s.c: Likewise.
* gcc.target/sh/sh2a-movrt.c: Likewise.
* gcc.target/sh/sh2a-resbank.c: Likewise.
* gcc.target/sh/sh2a-rtsn.c: Likewise.
* gcc.target/sh/sh2a-tbr-jump.c: Likewise.
* gcc.target/sh/sh4a-bitmovua.c: Likewise.
* gcc.target/sh/sh4a-cosf.c: Likewise.
* gcc.target/sh/sh4a-fsrra.c: Likewise.
* gcc.target/sh/sh4a-memmovua.c: Likewise.
* gcc.target/sh/sh4a-sincosf.c: Likewise.
* gcc.target/sh/sh4a-sinf.c: Likewise.

From-SVN: r227944

[PATCH] Fix 47679 by improving jump threading

PR tree-optimization/47679
* tree-ssa-dom.c (record_temporary_equivalences): No longer static.
* tree-ssa-dom.h (record_temporary_equivalences): Add prototype.
* tree-ssa-threadedge.c: Include tree-ssa-dom.h.
(thread_through_normal_block): Use record_temporary_equivalences.

        PR tree-optimization/47679
* g++.dg/warn/Wuninitialized-6.C: New test.

From-SVN: r227942