PR target/51726
	* config/i386/winnt.c (ix86_handle_selectany_attribute): Handle
	selectany within this function without need to keep attribute.
	(i386_pe_encode_section_info): Remove selectany-code.

From-SVN: r228370

2015-10-02  Richard Biener  <rguenther@suse.de>

	* tree-ssa-sccvn.c (has_VN_INFO): New function.
	(free_scc_vn): Use it.
	(visit_use): Remove dead code and refactor to use gassign
	and use less indentation.

From-SVN: r228369

2015-10-01  Louis Krupp <louis.krupp@zoho.com>

	PR fortran/62242
	PR fortran/52332
	* trans-array.c
	(store_backend_decl): Create new gfc_charlen instance if requested
	(get_array_ctor_all_strlen): Call store_backend_decl requesting
	new gfc_charlen
	(trans_array_constructor): Call store_backend_decl requesting
	new gfc_charlen if get_array_ctor_strlen was called
	(gfc_add_loop_ss_code): Don't try to convert non-constant length

2015-10-01  Louis Krupp     <louis.krupp@zoho.com>

	PR fortran/62242
	PR fortran/52332
	* gfortran.dg/string_array_constructor_1.f90: New.
	* gfortran.dg/string_array_constructor_2.f90: New.
	* gfortran.dg/string_array_constructor_3.f90: New.

From-SVN: r228368

From-SVN: r228367

After the shrink-wrapping patches the prologue will often be pushed
"deeper" into the function, which in turn means the software trace cache
pass will more often want to duplicate the basic block containing the
prologue.  This caused failures for 32-bit SVR4 with -msecure-plt PIC.

This configuration uses the load_toc_v4_PIC_1 instruction, which creates
assembler labels without using the normal machinery for that.  If now
the compiler decides to duplicate the insn, it will emit the same label
twice.  Boom.

It isn't so easy to fix this to use labels the compiler knows about (let
alone test that properly).  Instead, this patch wires up a "cannot_copy"
attribute to be used by TARGET_CANNOT_COPY_P, and sets that attribute on
these insns we do not want copied.


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

	PR target/67788
	PR target/67789
	* config/rs6000/rs6000.c (TARGET_CANNOT_COPY_INSN_P): New.
	(rs6000_cannot_copy_insn_p): New function.
	* config/rs6000/rs6000.md (cannot_copy): New attribute.
	(load_toc_v4_PIC_1_normal): Set cannot_copy.
	(load_toc_v4_PIC_1_476): Ditto.

gcc/testsuite/
	PR target/67788
	PR target/67789
	* gcc.target/powerpc/pr67789.c: New testcase.

From-SVN: r228366

2015-10-01  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran.67802
	* decl.c (add_init_expr_to_sym): Numeric constant for character
	length must be an INTEGER.

2015-10-01  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran.67802
	* gfortran.dg/pr67802.f90: New test.

From-SVN: r228365

2015-10-01  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/66979
	* io.c (gfc_resolve_filepos): Check for a UNIT number.  Add a nearby
	missing 'return false'.

2015-10-01  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/66979
	gfortran.dg/pr66979.f90: new test.

From-SVN: r228364

2015-10-01  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/67616
	* primary.c (gfc_match_structure_constructor): Use a possibly
	host-associated symtree to prevent ICE.

2015-10-01  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/67616
	* gfortran.dg/pr67616.f90: New test.

From-SVN: r228363

From-SVN: r228362

Use sese_l throughout SCoP detection and create vec<scop_p> at the very end when
all SCoPs have been identified. 'struct sese_l' is very lightweight (two
pointers) compared to 'struct scop'.

No functional change intended. Passes regtest and bootstrap.

gcc/ChangeLog:

2015-10-01  Aditya Kumar  <hiraditya@msn.com>

        * graphite-scop-detection.c (struct sese_l): New conversion constructor
          so that this type can be pushed into a vec.
        (class scop_builder): use sese_l to collect scops.
        (get_scops): New getter function.
        (remove_intersecting_scops): Use sese_l instead of scops_p.
        (intersects): Same.
        (add_scop): Same.
        (subsumes): Same.
        (remove_subscops): Same.
        (build_scops): Add scops to vec<scops_p> once all the scops have been
        detected.

From-SVN: r228359

Renaming gimple_bb to gimple_poly_bb because there is a function gimple_bb
by the same name in gimple.h. No functional change intended.
Passes regtest and bootstrap.

gcc/ChangeLog:

2015-10-01  Aditya Kumar  <hiraditya@msn.com>

        * graphite-isl-ast-to-gimple.c (class translate_isl_ast_to_gimple):
	Renamed type from gimple_bb_p to gimple_poly_bb_p.
        (translate_isl_ast_node_user): Same.
        * graphite-poly.c (new_poly_bb): Same.
        * graphite-poly.h (gbb_from_bb): Same.
        * sese.h: Same.
        * graphite-sese-to-poly.c (new_gimple_bb): gimple_bb_p -> gimple_poly_bb_p
        (build_scop_scattering): Same.
        (find_params_in_bb): Same.
        (add_conditions_to_domain): Same.
        (sese_dom_walker::before_dom_children): Same.
        (analyze_drs_in_stmts): Same.
        (new_pbb_from_pbb): Same.
        (free_data_refs_aux): New pointer to type base_alias_pair.
        * graphite-sese-to-poly.h: Same.
        * sese.c (if_region_set_false_region): Fixed Indentation.
        (move_sese_in_condition): Same.

From-SVN: r228358

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