2015-10-01  Sebastian Pop  <s.pop@samsung.com>
            Aditya Kumar  <aditya.k7@samsung.com>
        PR tree-optimization/66980
        * graphite-scop-detection.c (stmt_has_simple_data_refs_p): Return false
        when data reference analysis has failed.

Co-Authored-By: Aditya Kumar <aditya.k7@samsung.com>

From-SVN: r228357

PR c++/54430

/cp
2015-10-01  Ville Voutilainen  <ville.voutilainen@gmail.com>

	PR c++/54430
	* name-lookup.c (push_binding): Make non-static.
	* name-lookup.h (push_binding): Declare it.
	* parser.c (cp_parser_range_for): Use it, get the range
	declaration away from the scope until the range expression
	has been parsed, then restore the declaration.

/testsuite
2015-10-01  Ville Voutilainen  <ville.voutilainen@gmail.com>

	PR c++/54430
	* g++.dg/cpp0x/range-for30.C: New.

From-SVN: r228354

I noticed that c.opt still described -std=c11 and related options as
experimental in the --help text.  This patch fixes this.

Bootstrapped with no regressions on x86_64-pc-linux-gnu.

	* c.opt (std=c11): Do not describe as experimental.
	(std=gnu11): Likewise.
	(std=iso9899:2011): Likewise.

From-SVN: r228349

From-SVN: r228348

Before our rewrite of the scop detection, we used to not have a valid SESE
region under hand, and so we used to do more ad-hoc analysis of data references
by trying to prove that at all levels of a loop nest the data references would
be still valid.

Now that we have a valid SESE region, we can call the scev analysis in the same
way on the same computed loop nest in the scop-detection as in the sese-to-poly.

Next step will be to cache the data references analyzed in the scop detection
and not compute the same info in sese-to-poly.

The patch fixes block-1.f90 that used to ICE on x86_64-linux when compiled with
-m32.  Patch passed bootstrap with BOOT_CFLAGS="-g -O2 -fgraphite-identity
-floop-nest-optimize" and check on x86_64-linux using ISL-0.15.

2015-09-28  Sebastian Pop  <s.pop@samsung.com>
	Aditya Kumar  <aditya.k7@samsung.com>

	PR tree-optimization/67754
	* graphite-scop-detection.c (stmt_has_simple_data_refs_p): Call
	scev analysis on the same loop nest as analyze_drs_in_stmts.
	* graphite-sese-to-poly.c (outermost_loop_in_sese_1): Moved and renamed...
	(try_generate_gimple_bb): Call outermost_loop_in_sese.
	(analyze_drs_in_stmts): Same.
	* sese.c (outermost_loop_in_sese): ...here.

Co-Authored-By: Aditya Kumar <aditya.k7@samsung.com>

From-SVN: r228347

We now check that all data references in the current loop and inner loops
contained within loop are valid in an outer region before declaring that the
outer loop is a valid scop.

2015-09-30  Sebastian Pop  <s.pop@samsung.com>
	    Aditya Kumar  <aditya.k7@samsung.com>

	PR tree-optimization/67754
	* graphite-scop-detection.c (loop_body_is_valid_scop): Add missing
	recursion on the inner loops.

Co-Authored-By: Aditya Kumar <aditya.k7@samsung.com>

From-SVN: r228346

gcc/ChangeLog:

2015-10-01  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

	* cfganal.c, compare-elim.c, coverage.c, cprop.c, df-scan.c,
	function.c, read-rtl.c, statistics.c, trans-mem.c, tree-if-conv.c,
	tree-into-ssa.c, tree-loop-distribution.c, tree-ssa-coalesce.c,
	tree-ssa-loop-ivopts.c, tree-ssa-reassoc.c, tree-ssa-strlen.c,
	tree-ssa-tail-merge.c, tree-vrp.c, var-tracking.c: Remove
unneeded typedefs.

From-SVN: r228344

	PR c/65345
	* config/i386/i386.c (ix86_atomic_assign_expand_fenv): Adjust to use
	create_tmp_var_raw rather than create_tmp_var.

	* gcc.dg/atomic/pr65345-4.c: New test.
	* gcc.dg/pr65345-3.c: New test.

From-SVN: r228343

	PR go/66870
	* gospec.c (lang_specific_driver): Only look for OPT_m32 if
	TARGET_CAN_SPLIT_STACK_64BIT is defined.

From-SVN: r228342

	PR tree-optimization/67769
	* tree-ssa-phiopt.c (conditional_replacement): Call
	reset_flow_sensitive_info_in_bb.
	(minmax_replacement): Likewise.
	(abs_replacement): Likewise.

	* gcc.dg/torture/pr67769.c: New test.

From-SVN: r228341

	* builtins.c: Don't include gomp-constants.h.
	(fold_builtin_1): Don't fold acc_on_device here.
	* gimple-fold.c: Include gomp-constants.h.
	(gimple_fold_builtin_acc_on_device): New.
	(gimple_fold_builtin): Call it.

From-SVN: r228340

	* config/i386/x86-tune.def (X86_TUNE_USE_BT): Enable for
	Lakemont.
	(X86_TUNE_ZERO_EXTEND_WITH_AND): Disable for Lakemont.

From-SVN: r228337

	* gcc.dg/lto/pr55113_0.c: Skip on all x86 targets.

From-SVN: r228334

From-SVN: r228333

gcc/testsuite/
	PR target/54236
	* gcc.target/sh/pr54236-6.c: Fix assembler-no string.

From-SVN: r228332

	* doc/xml/manual/diagnostics.xml: Document use of errno.
	* doc/html/*: Regenerate.
	* config/locale/generic/c_locale.cc (_Save_errno): New helper.
	(__convert_to_v): Use _Save_errno.
	* include/ext/string_conversions.h (__stoa): Only restore errno when
	it isn't set to non-zero.

From-SVN: r228328

From-SVN: r228327

	* gcc.target/i386/pr65105-1.c: Require sse2 effective target.
	(main): Rename to sse2_test.  Abort if count != 5.
	(dg-options): Add -save-temps.  Use "-msse2 -mtune=slm" instead
	of -march=slm.
	* gcc.target/i386/pr46865-2.c (dg-options): Remove -save-temps.

From-SVN: r228326

s/Liekwise/Likewise/

From-SVN: r228325

	* config/arm/aarch-common-protos.h
	(aarch_accumulator_forwarding): New.
	(aarch_forward_to_shift_is_not_shifted_reg): Likewise.
	* config/arm/aarch-common.c (aarch_accumulator_forwarding): New.
	(aarch_forward_to_shift_is_not_shifted_reg): Liekwise.
	* config/arm/cortex-a53.md: Rewrite.

From-SVN: r228324

2015-10-01  Richard Biener  <rguenther@suse.de>

	* gimple-match.h (mprts_hook): Declare.
	* gimple-match.head.c (mprts_hook): Define.
	(maybe_push_res_to_seq): Use new hook.
	* gimple-fold.c (gimple_fold_stmt_to_constant_1): Likewise.
	* tree-ssa-sccvn.h (vn_ssa_aux::expr): Change to a gimple_seq.
	(vn_ssa_aux::has_constants): Remove.
	* tree-ssa-sccvn.c: Include gimple-match.h.
	(VN_INFO_GET): Assert we don't re-use SSA names.
	(vn_get_expr_for): Remove.
	(expr_has_constants): Likewise.
	(stmt_has_constants): Likewise.
	(simplify_binary_expression): Likewise.
	(simplify_unary_expression): Likewise.
	(vn_lookup_simplify_result): New hook.
	(visit_copy): Adjust.
	(visit_reference_op_call): Likewise.
	(visit_phi): Likewise.
	(visit_use): Likewise.
	(process_scc): Likewise.
	(init_scc_vn): Likewise.
	(visit_reference_op_load): Likewise.  Use match-and-simplify and
	a gimple seq for inserted expressions.
	(try_to_simplify): Remove GENERIC stmt combining code.
	(sccvn_dom_walker::before_dom_children): Use match-and-simplify.
	* tree-ssa-pre.c (eliminate_insert): Adjust.
	(eliminate_dom_walker::before_dom_children): Likewise.

	* gcc.dg/tree-ssa/ssa-fre-7.c: Adjust.
	* gcc.dg/tree-ssa/ssa-fre-8.c: Likewise.

From-SVN: r228320

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

	* doc/invoke.texi (Optimization Options): Add
	-freorder-blocks-algorithm=.
	(Optimize Options) <-O>: Add -freorder-blocks.
	<-O2>: Remove -freorder-blocks.  Add -freorder-blocks-algorithm=stc.
	<-Os>: Add -freorder-blocks-algorithm=stc as not enabled.
	<-freorder-blocks>: Also enabled at levels -O and -Os.
	<-freorder-blocks-algorithm=>: Document new option.

From-SVN: r228319

This adds an -freorder-blocks-algorithm=[simple|stc] flag, with "simple"
as default.  For -O2 and up (except -Os) it is switched to "stc" instead.
Targets that never want STC can override this.  This changes -freorder-blocks
to be on at -O1 and up (was -O2 and up).

In effect, the changes are for -O1 (which now gets "simple" instead of
nothing), -Os (which now gets "simple" instead of "stc", since STC results
in much bigger code), and for targets that wish to never use STC (not in
this patch though).


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

	* bb-reorder.c (reorder_basic_blocks): Use the algorithm selected
	with flag_reorder_blocks_algorithm.
	* common.opt (freorder-blocks-algorithm=): New flag.
	(reorder_blocks_algorithm): New enum.
	* flag-types.h (reorder_blocks_algorithm): New enum.
	* opts.c (default_options_table): Use -freorder-blocks at -O1 and up,
	and -freorder-blocks-algorithm=stc at -O2 and up (not at -Os).

From-SVN: r228318

2015-10-01  Segher Boessenkool  <segher@kernel.crashing.org>

	* bb-reorder.c: Add intro comment.
	(reorder_basic_blocks_software_trace_cache): Print a header to
	the dump file.
	(edge_order): New function.
	(reorder_basic_blocks_simple): New function.
	(reorder_basic_blocks): Choose between the STC and the simple
	algorithms (always choose the former).

From-SVN: r228317

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

	* bb-reorder.c (reorder_basic_blocks_software_trace_cache): New
	function, factored out from ...
	(reorder_basic_blocks): ... here.

From-SVN: r228316

2015-10-01  Tom de Vries  <tom@codesourcery.com>

	* tree-cfg.c (dump_function_to_file): Dump function attributes using
	__attribute__(()) string.  Move dumping of function attributes to before
	function name.

From-SVN: r228315

From-SVN: r228314

	PR target/66870
	* config/rs6000/sysv4.h (TARGET_CAN_SPLIT_STACK_64BIT): Define.
	* configure.ac: Define HAVE_GOLD_ALTERNATE_SPLIT_STACK on Power
	based on gold linker version.
	* gcc.c: Add -fuse-ld=gold to STACK_SPLIT_SPEC if
	HAVE_GOLD_ALTERNATE_SPLIT_STACK defined.
	* configure, config.in: Regenerate.
go:
	* gospec.c (lang_specific_driver): Set appropriate split stack
	options for 64 bit compiles based on TARGET_CAN_SPLIT_STACK_64BIT.

From-SVN: r228311

For other ABIs, -msingle-pic-base makes gcc omit loading of the PIC
register in function prologues.  This patch makes the option affect
ELFv2 too.

	* config/rs6000/rs6000.c (rs6000_emit_prologue): Don't set
	r2_setup_needed when TARGET_SINGLE_PIC_BASE.
	(rs6000_output_mi_thunk): Likewise.

From-SVN: r228309

	gcc/
	* config/nvptx/mkoffload.c (process): Change offload data format.

	libgomp/
	* plugin/plugin-nvptx.c (targ_fn_launch): Use GOMP_DIM_MAX.
	(struct targ_ptx_obj): New.
	(nvptx_tdata): Move earlier, change data format.
	(link_ptx): Take targ_ptx_obj ptr and count.  Allow multiple
	objects.
	(GOMP_OFFLOAD_load_image): Adjust.

Co-Authored-By: Bernd Schmidt <bernds@codesourcery.com>

From-SVN: r228308

ppc32 starts using the stack for integer arg passing when we run out
of integer arg passing registers.  Similarly, we start using the stack
for floating point args when we run out of floating point registers.
The decision on where an integer arg goes does not depend on number of
floating point args, nor does the decision on where a floating point
arg goes depend on number of integer args.  Alignment of stack args
also simply depends on number of stack args.

This patch untangles the horrible mess we had, with intarg_count being
wrongly used to count both integer args and stack words.

	* src/powerpc/ffi_sysv.c (ffi_prep_cif_sysv_core): Count fprs,
	gprs, and stack words separately.
	(ffi_prep_args_SYSV): Similarly.

From-SVN: r228307

	* tree-ssa-dom.c (optimize_stmt): Collapse control flow statements
	with constant conditions.
	* tree-ssa-threadupdate.c (remove_jump_threads_starting_at): New.
	(remove_ctrl_stmt_and_useless_edges): No longer static.
	* tree-ssa-threadupdate.h (remove_jump_threads_starting_at): Prototype.
	(remove_ctrl_stmt_and_useless_edges): Likewise.

	* gcc.dg/tree-ssa/ssa-dom-branch-1.c: New test.

From-SVN: r228306

2015-09-30  François Dumont  <fdumont@gcc.gnu.org>
	    Jonathan Wakely  <jwakely@redhat.com>

	* config/locale/gnu/messages_members.cc (Catalog_info, Catalogs):
	Move...
	* config/locale/gnu/c++locale_internal.h: ...here in std namespace.
	* config/locale/gnu/c_locale.cc: Move implementation of latter here.
	* src/c++98/Makefile.am: Compile c++locale.cc with -fimplicit-templates.
	* src/c++98/Makefile.in: Regenerate.
	* config/abi/pre/gnu.ver: Adjust.

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

From-SVN: r228305

	* config/nvptx/nvptx.c (nvptx_goacc_validate_dims): New.
	(TARGET_GOACC_VALIDATE_DIMS): Override.
	* target.def (TARGET_GOACC): New target hook prefix.
	(validate_dims): New hook.
	* targhooks.h (default_goacc_validate_dims): New.
	* omp-low.c (oacc_validate_dims): New.
	(execute_oacc_device_lower): New.
	(default_goacc_validate_dims): New.
	(pass_data_oacc_device_lower): New.
	(pass_oacc_device_lower): New pass.
	(make_pass_oacc_device_lower): New.
	* tree-pass.h (make_pass_oacc_device_lower): Declare.
	* passes.def (pass_oacc_device_lower): Add it.
	* doc/tm.texi: Rebuilt.
	* doc/tm.texi.in (TARGET_GOACC_VALIDATE_DIMS): Add hook.
	* doc/invoke.texi (oaccdevlow): Document tree dump flag.

Co-Authored-By: Cesar Philippidis <cesar@codesourcery.com>

From-SVN: r228304

2015-09-30  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR rtl-optimization/67037
        * lra-constraints.c (process_addr_reg): Use copy_rtx when necessary.

testsuite:
2015-09-30  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR rtl-optimization/67037
        * gcc.c-torture/execute/pr67037.c: New test.

From-SVN: r228303

	* gimple-ssa.h (gimple_df): Add free_ssanames_queue field.
	* passes.c: Include tree-ssanames.h.
	(execute_function_todo): Flush the pending free SSA_NAMEs after
	eliminating unreachable basic blocks.
	* tree-ssanames.c (FREE_SSANAMES_QUEUE): new.
	(init_ssanames): Initialize FREE_SSANAMES_QUEUE.
	(fini_ssanames): Finalize FREE_SSANAMES_QUEUE.
	(flush_ssanames_freelist): New function.
	(release_ssaname_fn): Put released names on the queue.
	(pass_release_ssa_names::execute): Call flush_ssanames_freelist.
	* tree-ssanames.h (flush_ssanames_freelist): Declare.

From-SVN: r228302

	gcc/
	* config/i386/intelmic-mkoffload.c (main): Parse "-v" flag.
	(generate_target_descr_file, generate_target_offloadend_file)
	(generate_host_descr_file, prepare_target_image, main): Pass it
	on.
	* config/nvptx/mkoffload.c (main): Parse "-v" flag.
	(compile_native, main): Pass it on.
	* lto-wrapper.c (compile_offload_image): Likewise.

From-SVN: r228301

That is, restore and adapt the code as originally proposed.

	gcc/
	* config/i386/intelmic-mkoffload.c (generate_host_descr_file)
	(prepare_target_image, main): Refactor argv building to use
	obstacks.

Co-Authored-By: Andrey Turetskiy <andrey.turetskiy@intel.com>
Co-Authored-By: Ilya Verbin <ilya.verbin@intel.com>

From-SVN: r228300

	gcc/ada/
	* gcc-interface/utils.c (DEF_FUNCTION_TYPE_VAR_11): Don't define.
	gcc/jit/
	* jit-builtins.h: Undefine DEF_FUNCTION_TYPE_VAR_6 after use.

Co-Authored-By: Ulrich Drepper <drepper@gmail.com>

From-SVN: r228298

gcc/
	* config/spu/spu-protos.h (spu_expand_atomic_op): Add prototype.
	* config/spu/spu.c (spu_expand_atomic_op): New function.
	* config/spu/spu.md (AINT): New mode iterator.
	(ATOMIC): New code iterator.
	(atomic_name, atomic_pred): New code predicates.
	("atomic_load<mode>", "atomic_store<mode>"): New expanders.
	("atomic_compare_and_swap<mode>", "atomic_exchange<mode>"): Likewise.
	(""atomic_<atomic_name><mode>", "atomic_fetch_<atomic_name><mode>",
	"atomic_<atomic_name>_fetch<mode>"): Likewise.

gcc/testsuite/
	* lib/target-supports.exp (check_effective_target_sync_int_128):
	Return 1 on spu-*-* targets.
	(check_effective_target_sync_int_128_runtime): Likewise.
	(check_effective_target_sync_long_long): Likewise.
	(check_effective_target_sync_long_long_runtime): Likewise.
	(check_effective_target_sync_int_long): Likewise.
	(check_effective_target_sync_char_short): Likewise.

From-SVN: r228297