simplify-rtx.c (simplify_binary_operation_1): Optimize case of nested VEC_SELECTs that are inverses of each other.

[gcc]

2014-05-20  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	* simplify-rtx.c (simplify_binary_operation_1): Optimize case of
	nested VEC_SELECTs that are inverses of each other.

[gcc/testsuite]

2014-05-20  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	* gcc.target/powerpc/vsxcopy.c: New test.

From-SVN: r210644

2014-05-20  Richard Biener  <rguenther@suse.de>

	* tree-ssa-sccvn.c (process_scc): Dump SCC here, when
	iterating,
	(extract_and_process_scc_for_name): not here.
	(cond_dom_walker::before_dom_children): Only process
	stmts that end the BB in interesting ways.
	(run_scc_vn): Mark param uses as visited.

From-SVN: r210643

/cp
2014-05-20  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/58664
	* typeck2.c (cxx_incomplete_type_inform): New.
	(cxx_incomplete_type_diagnostic): Use it.
	* decl.c (grokdeclarator): Check the element type of an
	incomplete array type; call the above.
	* cp-tree.h (cxx_incomplete_type_inform): Declare.

/testsuite
2014-05-20  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/58664
	* g++.dg/cpp0x/nsdmi-union6.C: New.
	* g++.dg/parse/pr58664.C: Likewise.
	* g++.dg/cpp0x/nsdmi6.C: Tweak.
	* g++.dg/parse/crash31.C: Likewise.
	* g++.dg/template/error2.C: Likewise.
	* g++.dg/template/inherit8.C: Likewise.
	* g++.dg/template/offsetof2.C: Likewise.

From-SVN: r210642

	* config/arm/arm.md (arith_shiftsi): Do not predicate for
	arm_restrict_it.

From-SVN: r210640

contrib/
	* dg-extract-results.py (parse_run): Handle warnings that are printed
	before a test harness is run.

From-SVN: r210637

msp430.md (zero_extendpsisi2): Use + constraint on operand 0 in order to prevent confusion about the number of...

	* config/msp430/msp430.md (zero_extendpsisi2): Use + constraint on
	operand 0 in order to prevent confusion about the number of
	registers involved.

From-SVN: r210636

2014-05-20  Sebastian Huber  <sebastian.huber@embedded-brains.de>

libffi/
	* testsuite/lib/libffi.exp (load_gcc_lib): Register loaded libs.

libjava/
	* testsuite/lib/libjava.exp (load_gcc_lib): Register loaded libs.

libstdc++-v3/
	* testsuite/lib/libstdc++.exp (load_gcc_lib): Register loaded libs.

From-SVN: r210634

2014-05-20  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/61221
	* tree-ssa-pre.c (el_to_update): Remove.
	(eliminate_dom_walker::before_dom_children): Handle released
	VDEFs by value-numbering them to the associated VUSE.  Update
	stmt immediately for substituted call address.
	(eliminate): Remove delayed stmt updating code.
	* tree-ssa-sccvn.c (vuse_ssa_val): New function valueizing
	possibly late re-numbered vuses.
	(vn_reference_lookup_2): Adjust.
	(vn_reference_lookup_pieces): Likewise.
	(vn_reference_lookup): Likewise.

From-SVN: r210633

2014-05-20  Richard Biener  <rguenther@suse.de>

	gcc/
	* config.gcc: Remove need_64bit_hwint.
	* configure.ac: Do not define NEED_64BIT_HOST_WIDE_INT.
	* hwint.h: Do not check NEED_64BIT_HOST_WIDE_INT but assume
	it to be true.
	* config.in: Regenerate.
	* configure: Likewise.

	libcpp/
	* configure.ac: Copy gcc logic of detecting a 64bit type.
	Remove HOST_WIDE_INT define.
	* include/cpplib.h: typedef cpp_num_part to a 64bit type,
	similar to how hwint.h does it.
	* config.in: Regenerate.
	* configure: Likewise.

From-SVN: r210632

From-SVN: r210631

2014-05-20  Tim Shen  <timshen91@gmail.com>

	PR libstdc++/61227
	* include/bits/regex_compiler.h
	(_BracketMatcher<>::_M_add_character_class): Add negative character
	class support.
	* include/bits/regex_compiler.tcc (_BracketMatcher<>::_M_apply):
	Likewise.
	* testsuite/28_regex/algorithms/regex_match/ecma/char/quoted_char.cc:
	Add more testcases.

From-SVN: r210630

From-SVN: r210629

From-SVN: r210625

	PR c++/58761
	* pt.c (tsubst_copy): Don't check at_function_scope_p.
	(instantiate_class_template_1): Don't push_to_top_level in an nsdmi.

From-SVN: r210624

/cp
2014-05-19  Paolo Carlini  <paolo.carlini@oracle.com>

	* typeck2.c (cxx_incomplete_type_diagnostic): Use inform.
	* parser.c (cp_parser_enum_specifier): Likewise.

/testsuite
2014-05-19  Paolo Carlini  <paolo.carlini@oracle.com>

	* c-c++-common/gomp/simd4.c: Adjust for inform.
	* g++.dg/cpp0x/decltype-call1.C: Likewise.
	* g++.dg/cpp0x/forw_enum6.C: Likewise.
	* g++.dg/cpp0x/lambda/lambda-ice7.C: Likewise.
	* g++.dg/cpp0x/noexcept15.C: Likewise.
	* g++.dg/cpp0x/variadic-ex2.C: Likewise.
	* g++.dg/eh/spec6.C: Likewise.
	* g++.dg/expr/cast1.C: Likewise.
	* g++.dg/expr/dtor1.C: Likewise.
	* g++.dg/ext/is_base_of_diagnostic.C: Likewise.
	* g++.dg/ext/unary_trait_incomplete.C: Likewise.
	* g++.dg/gomp/pr49223-2.C: Likewise.
	* g++.dg/gomp/udr-4.C: Likewise.
	* g++.dg/init/delete1.C: Likewise.
	* g++.dg/other/crash-2.C: Likewise.
	* g++.dg/parse/crash24.C: Likewise.
	* g++.dg/parse/crash25.C: Likewise.
	* g++.dg/parse/crash31.C: Likewise.
	* g++.dg/parse/crash49.C: Likewise.
	* g++.dg/parse/crash50.C: Likewise.
	* g++.dg/parse/crash54.C: Likewise.
	* g++.dg/parse/dtor7.C: Likewise.
	* g++.dg/parse/error40.C: Likewise.
	* g++.dg/parse/fused-params1.C: Likewise.
	* g++.dg/parse/new1.C: Likewise.
	* g++.dg/template/crash35.C: Likewise.
	* g++.dg/template/crash59.C: Likewise.
	* g++.dg/template/crash77.C: Likewise.
	* g++.dg/template/error51.C: Likewise.
	* g++.dg/template/incomplete1.C: Likewise.
	* g++.dg/template/incomplete3.C: Likewise.
	* g++.dg/template/incomplete4.C: Likewise.
	* g++.dg/template/incomplete5.C: Likewise.
	* g++.dg/template/inherit8.C: Likewise.
	* g++.dg/template/instantiate1.C: Likewise.
	* g++.dg/template/instantiate3.C: Likewis: Likewise.
	* g++.dg/template/offsetof2.C: Likewise.
	* g++.dg/tm/pr51928.C: Likewise.
	* g++.dg/warn/Wdelete-incomplete-1.C: Likewise.
	* g++.dg/warn/incomplete1.C: Likewise.
	* g++.dg/warn/incomplete2.C: Likewise.
	* g++.old-deja/g++.brendan/friend4.C: Likewise.
	* g++.old-deja/g++.bugs/900121_01.C: Likewise.
	* g++.old-deja/g++.bugs/900214_01.C: Likewise.
	* g++.old-deja/g++.eh/catch1.C: Likewise.
	* g++.old-deja/g++.eh/spec6.C: Likewise.
	* g++.old-deja/g++.mike/p7868.C: Likewise.
	* g++.old-deja/g++.other/crash38.C: Likewise.
	* g++.old-deja/g++.other/enum2.C: Likewise.
	* g++.old-deja/g++.other/incomplete.C: Likewise.
	* g++.old-deja/g++.other/vaarg3.C: Likewise.
	* g++.old-deja/g++.pt/crash9.C: Likewise.
	* g++.old-deja/g++.pt/niklas01a.C: Likewise.
	* g++.old-deja/g++.pt/typename8.C: Likewise.
	* g++.old-deja/g++.robertl/ice990323-1.C: Likewise.

From-SVN: r210623

2014-05-19  David Wohlferd <dw@LimeGreenSocks.com>

        * doc/extend.texi: Create Label Attributes section,
        move all label attributes into it and reference it.

From-SVN: r210621

From-SVN: r210620

	* arm.c (thumb1_reorg): When scanning backwards skip anything
	that's not a proper insn.

From-SVN: r210618

	(check_effective_target_vect_sizes_32B_16B): Return false if
	128-bit AVX vectors preferred.

From-SVN: r210617

target-supports.exp (check_effective_target_avx): Early out if not x86 to prevent x86 flags on non-x86 targets.

	* lib/target-supports.exp (check_effective_target_avx): Early out
	if not x86 to prevent x86 flags on non-x86 targets.

From-SVN: r210616

From-SVN: r210615

2014-05-19  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/61221
	* tree-ssa-pre.c (eliminate_dom_walker::before_dom_children):
	Do nothing for unreachable blocks.
	* tree-ssa-sccvn.c (cond_dom_walker::before_dom_children):
	Improve unreachability detection.

	* gcc.dg/torture/pr61221.c: New testcase.

From-SVN: r210614

2014-05-19  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/61209
	* tree-ssa-sccvn.c (visit_phi): Avoid setting expr to VN_TOP.

	* gfortran.dg/pr61209.f90: New testcase.

From-SVN: r210613

	* except.c (init_eh): Fix computation of builtin setjmp buffer
	size to allow for targets where POINTER_SIZE > BITS_PER_WORD.

From-SVN: r210612

2014-05-19  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/61184
	* tree-vrp.c (is_negative_overflow_infinity): Use
	TREE_OVERFLOW_P and do that check first.
	(is_positive_overflow_infinity): Likewise.
	(is_overflow_infinity): Likewise.
	(vrp_operand_equal_p): Properly treat operands with
	differing overflow as not equal.

	* c-c++-common/torture/pr61184.c: New testcase.

From-SVN: r210611

	* simplify-rtx.c (simplify_unary_operation_1): Use CONST_INT_P in
	shift simplification where it was intended.

From-SVN: r210610

PR target/61195
* config/sh/sh.md (movsf_ie): Unset fp_mode for fmov

From-SVN: r210608

gcc/
	PR target/61084
	* config/sparc/sparc.c (sparc_fold_builtin): Use widest_int rather
	than wide_int.

From-SVN: r210604

gcc/
	* reg-notes.def (CROSSING_JUMP): Likewise.
	* rtl.h (rtx_def): Update comment for jump flag.
	(CROSSING_JUMP_P): Define.
	* cfgcleanup.c (try_forward_edges, try_optimize_cfg): Use it instead
	of a REG_CROSSING_JUMP note.
	* cfghooks.c (tidy_fallthru_edges): Likewise.
	* cfgrtl.c (fixup_partition_crossing, rtl_verify_edges): Likewise.
	* emit-rtl.c (try_split): Likewise.
	* haifa-sched.c (sched_create_recovery_edges): Likewise.
	* ifcvt.c (find_if_case_1, find_if_case_2): Likewise.
	* jump.c (redirect_jump_2): Likewise.
	* reorg.c (follow_jumps, fill_slots_from_thread): Likewise.
	(relax_delay_slots): Likewise.
	* config/arc/arc.md (jump_i, cbranchsi4_scratch, *bbit): Likewise.
	(bbit_di): Likewise.
	* config/arc/arc.c (arc_reorg, arc_can_follow_jump): Likewise.
	* config/sh/sh.md (jump_compact): Likewise.
	* bb-reorder.c (rotate_loop): Likewise.
	(pass_duplicate_computed_gotos::execute): Likewise.
	(add_reg_crossing_jump_notes): Rename to...
	(update_crossing_jump_flags): ...this.
	(pass_partition_blocks::execute): Update accordingly.

From-SVN: r210603

gcc/
	* tree.h: Remove extraneous template <>.

From-SVN: r210602

2014-05-18  Wei Mi  <wmi@google.com>

        PR target/58066
        * gcc.target/i386/pr58066.c: Replace pattern matching of .cfi
        directive with rtl insns. Add effective-target of fpic and
        tls_native.

From-SVN: r210601

From-SVN: r210599

ipa.c (symtab_remove_unreachable_nodes): Remove symbol from comdat group if its body was eliminated.

	* ipa.c (symtab_remove_unreachable_nodes): Remove
	symbol from comdat group if its body was eliminated.
	(comdat_can_be_unshared_p_1): Static symbols can always
	be privatized.
	* symtab.c (symtab_remove_from_same_comdat_group): Break out
	from ...
	(symtab_unregister_node): ... this one.
	(verify_symtab_base): More strict checking of comdats.
	* cgraph.h (symtab_remove_from_same_comdat_group): Declare.

From-SVN: r210598

	* tree-pass.h (make_pass_ipa_comdats): New pass.
	* timevar.def (TV_IPA_COMDATS): New timevar.
	* passes.def (pass_ipa_comdats): Add.
	* Makefile.in (OBJS): Add ipa-comdats.o
	* ipa-comdats.c: New file.

	* g++.dg/ipa/comdat.C: New file.

From-SVN: r210597

From-SVN: r210596

	* ipa.c (update_visibility_by_resolution_info): New function.
	(function_and_variable_visibility): Use it.

From-SVN: r210592

	* gcc-interface/trans.c (Subprogram_Body_to_gnu): Rework comment and
	set function_start_locus.

From-SVN: r210591

	* utils.c (gnat_write_global_declarations): Adjust the flags put on
	dummy_global.

From-SVN: r210589

	* gcc-interface/decl.c (change_qualified_type): New static function.
	(gnat_to_gnu_entity): Use it throughout to add qualifiers on types.
	<E_Array_Type>: Set TYPE_VOLATILE on the array type directly.
	<E_Array_Subtype>: Likewise.
	Do not set flags on an UNCONSTRAINED_ARRAY_TYPE directly.
	(gnat_to_gnu_component_type): Likewise.
	(gnat_to_gnu_param): Likewise.

From-SVN: r210588

	* fe.h (Set_Present_Expr): Move around.
	(End_Location): New macro.
	* gcc-interface/trans.c (Case_Statement_to_gnu): Use End_Location.

From-SVN: r210587