2013-11-21  Cary Coutant  <ccoutant@google.com>

gcc/
	* dwarf2out.c (want_pubnames): Don't do pubnames for -g1.
	(add_linkage_name): Don't add linkage name for -g1.
	(decls_for_scope): Process subblocks for -g1.
	(dwarf2out_source_line): Output line tables for -g1.
	(dwarf2out_finish): Likewise.
	* tree-ssa-live.c (remove_unused_scope_block_p): Don't prune
	unused scopes for -g1.
	* opts.c (common_handle_option): Handle -g same as -g2.
	* doc/invoke.texi: Update description for -g1.

gcc/testsuite/
	* gcc.dg/debug/dwarf2/mlt1.c: New test.
	* gcc.dg/debug/dwarf2/mlt2.c: New test.

From-SVN: r205235

From-SVN: r205233

	PR tree-optimization/59221
	* tree-ssa-threadedge.c (thread_across_edge): Properly manage
	temporary equivalences when threading through joiner blocks.

	PR tree-optimization/59221
	* gcc.c-torture/execute/pr59221.c: New test.

From-SVN: r205229

	PR rtl-optimization/55950
	* real.c (real_sqrt): Remove function.
	* real.h (real_sqrt): Remove prototype.
	* simplify-rtx.c (simplify_const_unary_operation): Do not fold
	SQRT using real_sqrt.

From-SVN: r205223

2013-11-21  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/59058
	* tree-scalar-evolution.h (number_of_exit_cond_executions): Remove.
	* tree-scalar-evolution.c (number_of_exit_cond_executions): Likewise.
	* tree-vectorizer.h (LOOP_PEELING_FOR_ALIGNMENT): Rename to ...
	(LOOP_VINFO_PEELING_FOR_ALIGNMENT): ... this.
	(NITERS_KNOWN_P): Fold into ...
	(LOOP_VINFO_NITERS_KNOWN_P): ... this.
	(LOOP_VINFO_PEELING_FOR_NITER): Add.
	* tree-vect-loop-manip.c (vect_gen_niters_for_prolog_loop):
	Use LOOP_VINFO_PEELING_FOR_ALIGNMENT.
	(vect_do_peeling_for_alignment): Re-use precomputed niter
	instead of re-emitting it.
	* tree-vect-data-refs.c (vect_enhance_data_refs_alignment):
	Use LOOP_VINFO_PEELING_FOR_ALIGNMENT.
	* tree-vect-loop.c (vect_get_loop_niters): Use
	number_of_latch_executions.
	(new_loop_vec_info): Initialize LOOP_VINFO_PEELING_FOR_NITER.
	(vect_analyze_loop_form): Simplify.
	(vect_analyze_loop_operations): Move epilogue peeling code ...
	(vect_analyze_loop_2): ... here and adjust it to compute
	LOOP_VINFO_PEELING_FOR_NITER.
	(vect_estimate_min_profitable_iters): Use
	LOOP_VINFO_PEELING_FOR_ALIGNMENT.
	(vect_build_loop_niters): Emit on the preheader.
	(vect_generate_tmps_on_preheader): Likewise.
	(vect_transform_loop): Use LOOP_VINFO_PEELING_FOR_NITER instead
	of recomputing it.  Adjust.

From-SVN: r205217

2013-11-21  Richard Biener  <rguenther@suse.de>

	* tree-vectorizer.h (LOC, UNKNOWN_LOC, EXPR_LOC, LOC_FILE,
	LOC_LINE): Remove wrappers and fix all users.
	(struct _loop_vec_info): Remove loop_line_number member.
	(LOOP_VINFO_LOC): Remove.
	* tree-parloops.c, tree-vect-loop-manip.c, tree-vect-slp.c,
	tree-vectorizer.c: Fix users of LOC, UNKNOWN_LOC, EXPR_LOC, LOC_FILE
	and LOC_LINE.

From-SVN: r205216

2013-11-21  Edward Smith-Rowland  <3dw4rd@verizon.net>

	* include/experimental/string_view: Rep empty string with unit-length
	static constexpr string. Uncomment _GLIBCXX_VISIBILITY. Enforce
	invariant of no nullptr string pointer.
	* include/experimental/string_view.tcc: Ditto.
	* testsuite/experimental/string_view/cons/char/1.cc: data() for empty
	string_view is no longer nullptr.
	* testsuite/experimental/string_view/cons/wchar_t/1.cc: Ditto.
	* testsuite/experimental/string_view/operations/data/char/1.cc: Ditto.
	* testsuite/experimental/string_view/operations/data/wchar_t/1.cc:
	Ditto.

From-SVN: r205213

2013-11-21  Edward Smith-Rowland  <3dw4rd@verizon.net>

	Implement __gnu_cxx::hypergeometric_distribution.
	* include/ext/random: Add hypergeometric_distribution.
	* include/ext/random.tcc: Add hypergeometric_distribution.
	* testsuite/util/testsuite_random.h (hypergeometric_pdf): New pdf
	for the hypergeometric discreet distribution;
	(lbincoef): New supporting function for binomial coefficients.
	* testsuite/ext/random/hypergeometric_distribution/operators/
	serialize.cc: New.
	* testsuite/ext/random/hypergeometric_distribution/operators/
	equal.cc: New.
	* testsuite/ext/random/hypergeometric_distribution/operators/
	inequal.cc: New.
	* testsuite/ext/random/hypergeometric_distribution/operators/
	values.cc: New.
	* testsuite/ext/random/hypergeometric_distribution/cons/parms.cc: New.
	* testsuite/ext/random/hypergeometric_distribution/cons/default.cc: New.
	* testsuite/ext/random/hypergeometric_distribution/requirements/
	explicit_instantiation/1.cc: New.
	* testsuite/ext/random/hypergeometric_distribution/requirements/
	typedefs.cc: New.

From-SVN: r205212

2013-11-21  Richard Biener  <rguenther@suse.de>

	* tree-ssa-forwprop.c (simplify_vce): New function.
	(ssa_forward_propagate_and_combine): Call it.

From-SVN: r205211

	PR libfortran/59227
	* gfortran.dg/erf_3.F90: XFAIL on spu-* and ia64-*-linux*.
	Make more generic for other platforms.

From-SVN: r205210

From-SVN: r205201

2013-11-21  Richard Biener  <rguenther@suse.de>

	* tree-vect-loop-manip.c (vect_build_loop_niters,
	vect_generate_tmps_on_preheader): Move ...
	* tree-vect-loop.c (vect_build_loop_niters,
	vect_generate_tmps_on_preheader): ... here and simplify.
	(vect_transform_loop): Call them here and pass down results
	to consumers.
	* tree-vect-loop-manip.c (vect_do_peeling_for_loop_bound):
	Get niter variables from caller.
	(vect_do_peeling_for_alignment): Likewise.
	* tree-vectorizer.h (vect_generate_tmps_on_preheader): Remove.
	(vect_do_peeling_for_loop_bound, vect_do_peeling_for_alignment):
	Adjust prototypes.

From-SVN: r205199

2013-11-21  Richard Biener  <rguenther@suse.de>

	* tree-ssa-loop-ch.c (copy_loop_headers): Decrement
	nb_iterations_upper_bound by one.

From-SVN: r205198

2013-11-21  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/59058
	* tree-loop-distribution.c (struct partition_s): Add plus_one
	member.
	(build_size_arg_loc): Apply niter adjustment here.
	(generate_memset_builtin): Adjust.
	(generate_memcpy_builtin): Likewise.
	(classify_partition): Do not use number_of_exit_cond_executions
	but record whether niter needs to be adjusted.

From-SVN: r205197

	* tree-ssa-tail-merge.c (stmt_local_def): Return false if the statement
	could throw.

From-SVN: r205196

	PR libfortran/59227
	* intrinsics/erfc_scaled.c (erfc_scaled_r16): Don't define if
	__float128 is not available.

From-SVN: r205193

From-SVN: r205192

	PR target/53976
	* config/sh/sh_optimize_sett_clrt.cc: New SH specific RTL pass.
	* config/sh/sh.c (register_sh_passes): Add sh_optimize_sett_clrt pass.
	* config/sh/sh/t-sh (sh_optimize_sett_clrt pass.o): New entry.
	* config.gcc (sh[123456789lbe]*-*-* | sh-*-*): Add
	sh_optimize_sett_clrt pass.o to	extra_objs.

	PR target/53976
	* gcc.target/sh/pr53976-1.c: New.

From-SVN: r205191

gcc/
2013-11-20  David Malcolm  <dmalcolm@redhat.com>

	* cfg.c (dump_edge_info): Remove redundant comment.
	* cfgcleanup.c (outgoing_edges_match): Reword reference to
	EXIT_BLOCK_PTR in comment.
	(try_optimize_cfg): Likewise.
	* cfgrtl.c (last_bb_in_partition): Likewise.
	* cgraph.c (cgraph_node_cannot_return): Likewise.
	* function.c (thread_prologue_and_epilogue_insns): Likewise.
	* graphite-scop-detection.c (scopdet_basic_block_info): Likewise.
	* ipa-split.c (consider_split): Likewise.
	* profile.c (find_spanning_tree): Likewise.
	* sched-int.h (common_sched_info_def.add_block): Likewise.
	* dominance.c (calc_dfs_tree_nonrec): Reword references in
	comments to now removed ENTRY_BLOCK_PTR and EXIT_BLOCK_PTR macros.
	* tree-cfgcleanup.c (cleanup_control_flow_bb): Reword references
	in comments to now removed ENTRY_BLOCK_PTR macro.
	(tree_forwarder_block_p): Reword reference in comment to
	EXIT_BLOCK_PTR.
	* tree-inline.c (copy_cfg_body): Reword references in comments to
	now removed ENTRY_BLOCK_PTR macro.
	* tree-ssa-propagate.c (ssa_prop_init): Likewise.
	* tree-scalar-evolution.h ( block_before_loop): Likewise.  Add
	a comma to the comment to clarify the meaning.

From-SVN: r205182

From-SVN: r205175

From-SVN: r205172

	* gimplify.h (gimplify_hasher : typed_free_remove, struct gimplify_ctx):
	Move to gimplify.c.
	(free_gimplify_stack): Add prototype.
	* gimplify.c (gimplify_hasher:typed_free_remove): Relocate here.
	(struct gimplify_ctx): Relocate here.
	(gimplify_ctxp): Make static.
	(ctx_pool, ctx_alloc, ctx_free, free_gimplify_stack): New.  Manage a 
	list of struct gimplify_ctx.
	(push_gimplify_context): Add default parameters and allocate a struct
	from the pool.
	(pop_gimplify_context): Free a struct back to the pool.
	(gimplify_scan_omp_clauses, gimplify_omp_parallel, gimplify_omp_task,
	gimplify_omp_workshare, gimplify_transaction, gimplify_body): Don't
	use a local 'struct gimplify_ctx'.
	* cgraphunit.c (expand_all_functions): call free_gimplify_stack.
	* gimplify-me.c (force_gimple_operand_1, gimple_regimplify_operands):
	Likewise.
	* omp-low.c (lower_omp_sections, lower_omp_single, lower_omp_master,
	lower_omp_ordered, lower_omp_critical, lower_omp_for,
	create_task_copyfn, lower_omp_taskreg, lower_omp_target,
	lower_omp_teams, execute_lower_omp): Likewise.
	* gimple-fold.c (gimplify_and_update_call_from_tree): Likewise.
	* tree-inline.c (optimize_inline_calls): Likewise.

From-SVN: r205168

	PR libfortran/49024

	* intrinsics/erfc_scaled.c (erfc_scaled_r16): New function.
	* intrinsics/erfc_scaled_inc.c: Do not provide quadruple
	precision variant.

	* gfortran.dg/erf_3.F90: New file.

From-SVN: r205151

gcc:

2013-11-20  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	* config/rs6000/vsx.md (vsx_set_<mode>): Adjust for little endian.
	(vsx_extract_<mode>): Likewise.
	(*vsx_extract_<mode>_one_le): New LE variant on
	*vsx_extract_<mode>_zero.
	(vsx_extract_v4sf): Adjust for little endian.


gcc/testsuite:

2013-11-20  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	* gcc.target/powerpc/pr48258-1.c: Skip for little endian.

From-SVN: r205146

	PR libstdc++/49204
	* include/std/future (__future_base::_State_base): Rename to
	__future_base::_State_baseV2.
	(__future_base::_State_baseV2::~_State_baseV2): Define as defaulted.
	(__future_base::_State_baseV2::_M_run_deferred): Rename to
	_M_complete_async.
	(__future_base::_State_baseV2::_M_has_deferred): Add new virtual.
	(__future_base::_State_baseV2::wait_for): Call _M_has_deferred() to
	test for a deferred function, or call _M_complete_async() to join an
	async thread that has made the shared state ready.
	(__future_base::_State_baseV2::wait_until): Likewise.
	(__future_base::_Async_state_common): Rename to _Async_state_commonV2.
	(__future_base::_Async_state_commonV2::_M_run_deferred): Rename to
	_M_complete_async.
	* src/c++11/compatibility-thread-c++0x.cc (__future_base::_State_base):
	Export old definition.
	(__future_base::_Async_state_common): Likewise.
	* src/c++11/future.cc (__future_base::_State_base::~_State_base):
	Remove.
	* doc/xml/manual/status_cxx2011.xml: Update status.
	* testsuite/30_threads/async/async.cc: Test future_status::timeout
	and future_status::ready.
	* testsuite/30_threads/async/sync.cc: Test future_status::deferred.

From-SVN: r205144

2013-11-20  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/59133
	* lra.c (expand_reg_data): Add new argument.  Set up ALL_REGS for
	new pseudos.
	(lra_create_new_reg_with_unique_value): Pass new argument value.
	(lra_emit_add, lra_emit_move): Ditto.
	* lra-constraints.c (in_class_p): Add check for move for a new
	insn.
	(change_class): Rename to lra_change_class.  Move to lra-int.h.
	(get_reload_reg, narrow_reload_pseudo_class): Adjust calls of
	change_class.
	(process_addr_reg, process_addr): Ditto.
	(curr_insn_transform): Ditto.  Add check on old pseudo for
	optional reload.
	* lra-int.h (lra_get_regno_hard_regno): Move below.
	(lra_change_class): Renamed change_class from lra.c.

2013-11-20  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/59133
	* gcc.target/i386/pr59133.c: New.

From-SVN: r205141

	* gdbhooks.py (VecPrinter.children): Don't attempt to iterate
	the children of a NULL pointer.

From-SVN: r205139

From-SVN: r205138

    	* lra.c (lra): Set lra_in_progress before check_rtl call.
    	* recog.c (insn_invalid_p): Add !lra_in_progress to prevent
    	adding clobber regs when LRA is running

From-SVN: r205136

From-SVN: r205134

From-SVN: r205133

	* config/mips/mips.h (ISA_HAS_FP4): Remove TARGET_FLOAT64
	restriction for ISA_MIPS32R2.
	(ISA_HAS_LXC1_SXC1): New macro.
	(ISA_HAS_FP_MADD4_MSUB4): Remove ISA_MIPS32R2 special-casing.
	(ISA_HAS_NMADD4_NMSUB4): Likewise.
	(ISA_HAS_FP_RECIP_RSQRT): Likewise.
	(ISA_HAS_PREFETCHX): Redefine in terms of ISA_HAS_FP4.
	* config/mips/mips.md (*<ANYF:loadx>_<P:mode>): Use
	ISA_HAS_LXC1_SXC1 rather than ISA_HAS_FP4.
	(*<ANYF:storex>_<P:mode>): Likewise.

From-SVN: r205130

	* config/mips/mips.h (ISA_HAS_FP_RECIP_RSQRT): New macro.
	* config/mips/mips.c (mips_rtx_costs) <DIV>: Check for
	ISA_HAS_FP_RECIP_RSQRT rather than ISA_HAS_FP4.
	* config/mips/mips.md (recip_condition): Remove mode attribute.
	(div<mode>3): Use ISA_HAS_FP_RECIP_RSQRT rather than
	<recip_condition>.
	(*recip<mode>3, *rsqrt<mode>a, *rsqrt<mode>b): Likewise.

From-SVN: r205129

	PR target/59207
	* config/sparc/sparc.c (sparc_fold_builtin) <case CODE_FOR_pdist_vis>:
	Make sure neg2_ovf is set before being used.

From-SVN: r205127

2013-11-20  Basile Starynkevitch  <basile@starynkevitch.net>

        * plugin.def: Add comment about register_callback and
        invoke_plugin_callbacks_full.

        * plugin.c (register_callback, invoke_plugin_callbacks_full):
        Handle PLUGIN_INCLUDE_FILE event.

From-SVN: r205125

rs6000.c (rs6000_cannot_change_mode_class): Do not allow subregs of TDmode in FPRs of smaller size in little-endian.

	* config/rs6000/rs6000.c (rs6000_cannot_change_mode_class): Do not
	allow subregs of TDmode in FPRs of smaller size in little-endian.
	(rs6000_split_multireg_move): When splitting an access to TDmode
	in FPRs, do not use simplify_gen_subreg.

From-SVN: r205123

	PR middle-end/21718
	* real.c: Remove comment about decimal string conversion and
	rounding errors.
	(real_from_string): Use MPFR to convert nonzero decimal constant
	to REAL_VALUE_TYPE.

testsuite:
	* gcc.dg/float-exact-1.c: New test.

From-SVN: r205119

arm.c (arm_dwarf_register_span): Take into account the endianness of the D registers for the legacy encodings.

	* config/arm/arm.c (arm_dwarf_register_span): Take into account the
	endianness of the D registers for the legacy encodings.

From-SVN: r205118

PR rtl-optimization/54300

gcc/

	PR rtl-optimization/54300
	* regcprop.c (copyprop_hardreg_forward_1): Ensure any unused
	outputs in a single-set are killed from the value chains.

gcc/testsuite:

	PR rtl-optimization/54300
	* gcc.target/arm/pr54300.C: New test.

From-SVN: r205117

        * cgraph.h (varpool_node): Add need_bounds_init field.
        * lto-cgraph.c (lto_output_varpool_node): Output
        need_bounds_init value.
        (input_varpool_node): Read need_bounds_init value.
        * varpool.c (dump_varpool_node): Dump need_bounds_init field.

From-SVN: r205116