From-SVN: r181306

From-SVN: r181301

	* config/i386/i386-protos.h (ix86_maybe_emit_epilogue_vzeroupper):
	New prototype.
	* config/i386/i386.c (ix86_maybe_emit_epilogue_vzeroupper): New
	function.
	(ix86_expand_epilogue): Use it.
	* config/i386/i386.md (return, simple_return): Call it in the
	expanders.

From-SVN: r181300

	PR tree-optimization/51091
	* tree-stdarg.c (execute_optimize_stdarg): Ignore TREE_CLOBBER_P
	rhs also in the va_list_simple_ptr case.

From-SVN: r181299

re PR tree-optimization/51058 (ICE: gimple check: expected gimple_assign(error_mark), have gimple_call() in gimple_assign_rhs_code, at gimple.h:1992)

	PR tree-optimization/51058
	* tree-vect-slp.c (vect_remove_slp_scalar_calls): New function.
	(vect_schedule_slp): Call it.
	* tree-vect-stmts.c (vectorizable_call): If slp_node != NULL,
	don't replace scalar calls with setting of their lhs to zero here.

	* gcc.dg/vect/fast-math-vect-call-1.c: Add f4 test.
	* gfortran.dg/vect/pr51058-2.f90: New test.

From-SVN: r181298

re PR tree-optimization/51074 (No constant folding performed for VEC_PERM_EXPR, VEC_INTERLEAVE*EXPR, VEC_EXTRACT*EXPR)

	PR tree-optimization/51074
	* fold-const.c (vec_cst_ctor_to_array, fold_vec_perm): New functions.
	(fold_binary_loc): Handle VEC_EXTRACT_EVEN_EXPR,
	VEC_EXTRACT_ODD_EXPR, VEC_INTERLEAVE_HIGH_EXPR and
	VEC_INTERLEAVE_LOW_EXPR with VECTOR_CST or CONSTRUCTOR operands.
	(fold_ternary_loc): Handle VEC_PERM_EXPR with VECTOR_CST or
	CONSTRUCTOR operands.
	* tree-ssa-propagate.c (valid_gimple_rhs_p): Handle ternary
	expressions.
	* tree-vect-generic.c (lower_vec_perm): Mask sel_int elements
	to 0 .. 2 * elements - 1.

From-SVN: r181297

	* gimple-pretty-print.c (dump_gimple_omp_atomic_load): Dump needed.
	(dump_gimple_omp_atomic_store): Likewise.
	* optabs.c (can_atomic_exchange_p): New.
	* optabs.h (can_atomic_exchange_p): Declare.
	* omp-low.c (expand_omp_atomic_load): Implement.
	(expand_omp_atomic_store): Likewise.
	(expand_omp_atomic): Update for new arguments to load/store.

From-SVN: r181296

	PR c++/50976
	* typeck.c (check_literal_operator_args): Reorganize test for string
	operators so size_t search depends on finding string first.

From-SVN: r181292

	* config/spu/t-elf (LIB2ADD): Use LIB2FUNCS_EXCLUDE instead.

From-SVN: r181291

From-SVN: r181290

	* cprop.c: Adjust outdated comments throughout.
	(hash_scan_set): Rename PAT parameter into SET.
	(cprop_pavloc): Rename into...
	(cprop_avloc): ...this.
	(cprop_absaltered): Rename into...
	(cprop_kill): ...this.
	(alloc_cprop_mem): Adjust for above renaming.
	(free_cprop_mem): Likewise.
	(compute_cprop_data): Likewise.
	(compute_local_properties): Rename TRANSP parameter into KILL and
	adjust throughout.  Rework comments.
	(try_replace_reg): Fix long line.
	(cprop_jump): Likewise.
	(constprop_register): Fix prototype and take INSN last.
	(cprop_insn): Adjust calls to above function.  Fix long lines.
	(bypass_block): Likewise.
	(one_cprop_pass): Likewise.

From-SVN: r181289

2011-11-11  Janne Blomqvist  <jb@gcc.gnu.org>

	PR libfortran/51090
	* runtime/main.c (find_addr2line): NULL check before proceeding.

From-SVN: r181288

	* config/alpha/elf.h (ELF_ASCII_ESCAPES): Rename from ESCAPES.
	(ELF_STRING_LIMIT): Rename from STRING_LIMIT.

From-SVN: r181287

	* varasm.c (default_elf_asm_output_limited_string): #ifdef
	ELF_ASCII_ESCAPES.
	(default_elf_asm_output_ascii): Likewise.

From-SVN: r181286

	PR target/50762
	* config/i386/constraints.md (j): New address constraint.
	* config/i386/predicates.md (lea_address_operand): Redefine as
	special predicate.
	* config/i386/i386.md (*lea_3_zext): Use "j" constraint for operand 1.
	(*lea_4_zext): Ditto.

From-SVN: r181285

2011-11-11  Andrey Belevantsev  <abel@ispras.ru>

	* MAINTAINERS (Selective Scheduling): Add myself as a reviewer.

From-SVN: r181284

gcc/

	Revert
	2011-11-05  David S. Miller  <davem@davemloft.net>

From-SVN: r181283

opts-common.c (generate_canonical_option): Free opt_text it it has been allocated here and not stored anywhere.

	* opts-common.c (generate_canonical_option): Free opt_text
	it it has been allocated here and not stored anywhere.

From-SVN: r181282

	* tree-vect-slp.c (vect_free_slp_tree): Also free SLP_TREE_CHILDREN
	vector.
	(vect_create_new_slp_node): Don't allocate node before checking stmt
	type.
	(vect_free_oprnd_info): Remove FREE_DEF_STMTS argument, always
	free def_stmts vectors and additionally free oprnd_info.
	(vect_build_slp_tree): Adjust callers.  Call it even if
	stop_recursion.  If vect_create_new_slp_node or
	vect_build_slp_tree fails, properly handle freeing memory.
	If it succeeded, clear def_stmts in oprnd_info.

From-SVN: r181281

	PR c++/50372
	* pt.c (convert_nontype_argument_function): Allow decls with
	internal linkage in C++11.
	(convert_nontype_argument): Likewise.

From-SVN: r181280

final.c, output.h (fprint_whex, [...]): New functions serving as fast replacements for fprintf() integer to string...

	* final.c, output.h (fprint_whex, fprint_w, fprint_ul, sprint_ul):
	New functions serving as fast replacements for fprintf() integer
	to string conversions. They were used in the following changes.
	* final.c (sprint_ul_rev): Internal helper for the above.
	(output_addr_const): case CONST_INT: don't use fprintf().
	* elfos.h (ASM_GENERATE_INTERNAL_LABEL): Don't use sprintf("%u"),
	use sprint_ul() and stpcpy() which are much faster.
	(TARGET_ASM_INTERNAL_LABEL): Define as default_elf_internal_label.
	(ELF_ASCII_ESCAPES, ELF_STRING_LIMIT): Are the old ESCAPES and
	STRING_LIMIT macros.
	(ASM_OUTPUT_LIMITED_STRING, ASM_OUTPUT_ASCII): Macros now just
	call respective functions that provide the same
	functionality. Those are default_elf_asm_output_limited_string()
	and default_elf_asm_output_ascii() in varasm.c.
	* varasm.c: Fixed some whitespace inconsistencies.
	(default_elf_asm_output_limited_string)
	(default_elf_asm_output_ascii): The above macros from elfos.h are
	implemented here as these functions, avoiding superfluous calls to
	fprintf().
	(default_elf_internal_label): Hook for
	targetm.asm_out.internal_label and ASM_OUTPUT_DEBUG_LABEL.
	* i386.c: Don't call fprintf("%u") but fprint_ul() instead.
	* defaults.h (ASM_OUTPUT_LABEL, ASM_OUTPUT_INTERNAL_LABEL):
	Expanded the macros on multiple lines for readability.
	(ASM_OUTPUT_LABELREF): Have two calls to fputs() instead of one to
	asm_fprintf().
	* dwarf2asm.c (dw2_assemble_integer, dw2_asm_output_data)
	(dw2_asm_data_uleb128, dw2_asm_delta_uleb128)
	(dw2_asm_delta_sleb128): Convert fprintf() calls to the new
	faster functions.
	* dwarf2out.c (dwarf2out_source_line): Convert fprintf() calls to
	the new faster functions.

From-SVN: r181279

From-SVN: r181278

2011-11-10  Andrew MacLeod  <amacleod@redhat.com>

	* doc/extend.texi: Document __atomic_test_and_set and __atomic_clear.

From-SVN: r181273

	PR c++/50973
	* decl2.c (mark_used): Defer synthesis of virtual functions.
	* method.c (use_thunk): Make sure the target function has
	DECL_INTERFACE_KNOWN.

From-SVN: r181272

	PR middle-end/51038

	libstdc++-v3
	* include/bits/atomic_base.h (atomic_thread_fence): Call built-in.
	(atomic_signal_fence): Call built-in.
	(test_and_set, clear): Call new atomic built-ins.

	gcc
	* builtins.c (expand_builtin_atomic_clear): New.  Expand atomic_clear.
	(expand_builtin_atomic_test_and_set): New.  Expand atomic test_and_set.
	(expand_builtin): Add cases for test_and_set and clear.
	* sync-builtins.def (BUILT_IN_ATOMIC_TEST_AND_SET): New.
	(BUILT_IN_ATOMIC_CLEAR): New.

	testsuite
	* gcc.dg/atomic-invalid.c: Add test for invalid __atomic_clear models.
	* gcc.dg/atomic-flag.c: New.  Test __atomic_test_and_set and
	__atomic_clear.

From-SVN: r181271

	PR c++/51079, DR 495
	* call.c (joust): Check the second conversion sequence
	before checking templates.

From-SVN: r181270

	PR debug/50983
	* dwarf2out.c (set_cur_line_info_table): Restore the last is_stmt
	value in the current line table.

From-SVN: r181269

	* fe.h (Serious_Errors_Detected): New macro.
	* gcc-interface/gigi.h (build_atomic_load): Declare.
	(build_atomic_store): Likewise.
	* gcc-interface/trans.c (atomic_sync_required_p): New predicate.
	(call_to_gnu): Add ATOMIC_SYNC parameter.  Use local variable.
	Build an atomic load for an In or In Out parameter if needed.
	Build an atomic store for the assignment of an Out parameter if needed.
	Build an atomic store to the target if ATOMIC_SYNC is true.
	(present_in_lhs_or_actual_p): New predicate.
	(gnat_to_gnu) <N_Identifier>: Build an atomic load if needed.
	<N_Explicit_Dereference>: Likewise.
	<N_Indexed_Component>: Likewise.
	<N_Selected_Component>: Likewise.
	<N_Assignment_Statement>: Adjust call to call_to_gnu.
	Build an atomic store to the LHS if needed.
	<N_Function_Call>:  Adjust call to call_to_gnu.
	* gcc-interface/utils2.c: Include toplev.h.
	(resolve_atomic_size): New static function.
	(build_atomic_load): New function.
	(build_atomic_store): Likewise.
	* gcc-interface/Make-lang.in (ada/utils2.o): Add toplev.h.

From-SVN: r181267

        * configure.ac (GCC_AS_CFI_PSEUDO_OP): Use it instead of inline check.
        * configure, aclocal.m4: Rebuild.

From-SVN: r181266

	* gcov.c (struct function_info): Make src an index, not a pointer.
	(struct source_info): Remove index and next source fields.
	(fn_end): New static var.
	(sources_index): Remove.
	(sources): Now a pointer to an array, not a list.
	(n_sources, a_sources): New.
	(process_file): Adjust for changes to read_graph_file. Insert
	functions into source lists and check line numbers here.
	(generate_results): Only allocate lines for sources with
	contents.  Adjust for source array.
	(release_structures): Likewise.
	(find_source): Return source index, adjust for source array.
	(read_graph_file): Return function list.  Don't insert into source
	lists here.
	(read_count_file): Take list of functions.
	(solve_flow_graph): Reverse the arc lists here.
	(add_line_counts): Adjust for source array.

From-SVN: r181265

	PR middle-end/51077
	* tree-object-size.c (addr_object_size): Check TREE_CODE of
	MEM_REF's operand rather than code of the MEM_REF itself.

	* gcc.c-torture/compile/pr51077.c: New test.

From-SVN: r181263

	* config/alpha/sjlj.S (_ITM_beginTransaction) [!__ELF__]: Don't use
	.hidden.
	(.note.GNU-stack): Only use if __linux__.
	* alloc_cpp.cc [!__osf__] (_ZnaXRKSt9nothrow_t): Dummy function.
	* testsuite/libitm.c/notx.c: Use dg-options "-pthread".
	* testsuite/libitm.c/reentrant.c: Likewise.
	* testsuite/libitm.c/simple-2.c: Likewise.
	* testsuite/libitm.c/txrelease.c: Likewise.
	* testsuite/libitm.c++/static_ctor.C: Likewise.

From-SVN: r181262

        * config/x86/x86_avx.cc: Remove #undef __AVX__ hack.  Tidy comments.
        * Makefile.am (x86_avx.lo): Only add -mavx if ARCH_X86_AVX.
        * configure.ac (ARCH_X86_AVX): New conditional.
        * Makefile.in, configure: Rebuild.

From-SVN: r181261

2011-11-10  Janne Blomqvist  <jb@gcc.gnu.org>

	* intrinsics/cpu_time.c (__cpu_time_1): Don't force inlining.
	* intrinsics/random.c (rnumber_4): Remove inline attribute.
	(rnumber_8, rnumber_10, rnumber_16): Likewise.
	* intrinsics/system_clock.c (gf_gettime_mono): Likewise.
	* intrinsics/time_1.h (ATTRIBUTE_ALWAYS_INLINE): Remove macro.
	(gf_cputime): Add inline attribute for MingW version.
	* io/format.c (format_hash): Remove inline attribute.
	* io/io.h (memset4): Inline function from transfer.c and write.c
	moved here.
	* io/transfer.c (min_off): Remove inline attribute.
	(memset4): Move to io.h.
	* io/write.c (memset4): Likewise.
	(memcpy4): Remove inline attribute.
	* io/write_float.def (calculate_exp): Likewise.

From-SVN: r181260

re PR rtl-optimization/51040 (ICE: RTL check: access of elt 1 of 'not' with last elt 0 in gen_rtx_fmt_ee_stat, at ./genrtl.h:33 with __atomic_nand_fetch())

	PR rtl-optimization/51040
	* optabs.c (expand_atomic_fetch_op): Patchup code for NAND should be AND
	followed by NOT.
	* builtins.c (expand_builtin_atomic_fetch_op): Patchup code for NAND
	should be AND followed by NOT.
	* testsuite/gcc.dg/atomic-noinline[-aux].c: Test no-inline NAND and
	patchup code.

From-SVN: r181259

	* vec.h (VEC_BASE): If base is at offset 0 in the structure,
	use &(P)->base even if P is NULL.

From-SVN: r181258

	PR rtl-optimization/51023
	* combine.c (simplify_comparison) <case SIGN_EXTEND>: Don't use
	val_signbit_known_clear_p for signed comparison narrowing
	optimization.  Don't check for non-VOIDmode, use
	HWI_COMPUTABLE_MODE_P macro.
	<case ZERO_EXTEND>: Don't check for non-VOIDmode.
	Optimize even when const_op is equal to GET_MODE_MASK (mode),
	don't optimize if const_op is negative.

	* gcc.c-torture/execute/pr51023.c: New test.

From-SVN: r181257

2011-11-10  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/51042
	* tree-ssa-pre.c (phi_translate_1): Avoid recursing on
	self-referential expressions.  Refactor code to avoid duplication.

	* gcc.dg/torture/pr51042.c: New testcase.

From-SVN: r181256

2011-11-10  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/51070
	* tree-loop-distribution.c (generate_builtin): Do not replace
	the loop with a builtin if the partition contains statements which
	results are used outside of the loop.
	(pass_loop_distribution): Verify and collect.

	* gcc.dg/torture/pr51070.c: New testcase.

From-SVN: r181255

2011-11-10  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/51030
	* tree-ssa-phiopt.c (jump_function_from_stmt): New function.
	(value_replacement): Use it to handle trivial non-empty
	intermediate blocks.

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

From-SVN: r181254