Consider this short example:

     1	template<typename T>
     2	using AddConst = T const;
     3
     4	enum FwdEnum : int;
     5
     6	int main() {
     7	  AddConst<FwdEnum> *ptr = nullptr;
     8	}

At line 7, when we build the type for AddConst<FwdEnum> in
lookup_template_class_1, the resulting type is the enum FwdEnum.  This
confuses lookup_template_class_1 near the if below, wrongly making it
taking the branch and thus calling tsubst_enum while it shouldn't:

      if (TREE_CODE (t) == ENUMERAL_TYPE && !is_dependent_type)
	/* Now that the type has been registered on the instantiations
	   list, we set up the enumerators.  Because the enumeration
	   constants may involve the enumeration type itself, we make
	   sure to register the type first, and then create the
	   constants.  That way, doing tsubst_expr for the enumeration
	   constants won't result in recursive calls here; we'll find
	   the instantiation and exit above.  */
	tsubst_enum (template_type, t, arglist);

Before the alias template feature, the only reason why TREE_CODE (t)
== ENUMERAL_TYPE would be true is when lookup_template_class_1 is
called for an enum that is a member of a class template.  But that
condition can be also true for an alias template instantiation.

So I guess that condition should be changed to TREE_CODE
(template_type) == ENUMERAL_TYPE, to specifically detect the member
enum of a class template case.  Note that for the alias template
instantiation case above, template_type points to a TEMPLATE_TYPE_PARM
which name is AddConst.

This is what the patchlet below does.

Bootstrapped and tested on x86_64-unknown-linux-gnu against trunk.

gcc/cp/

	* pt.c (lookup_template_class_1): Look at the type of the
	potential member enum of class template to determine if we are
	actually substituting into a member enum of class template.

gcc/testsuite/

	* g++.dg/cpp0x/alias-decl-27.C: New test.

From-SVN: r193562

	* configure.ac: Invoke AM_MAINTAINER_MODE.
	* aclocal.m4, configure, Makefile.in, asan/Makefile.in,
	interception/Makefile.in, sanitizer_common/Makefile.in: Rebuild.

From-SVN: r193561

2012-11-16  Matthias Klose  <doko@ubuntu.com>

        * config/pa/t-linux: New file; define MULTIARCH_DIRNAME.
        * config.gcc <hppa*64*-*-linux*, hppa*-*-linux*> (tmake_file):
        Include pa/t-linux.

From-SVN: r193560

	(check_effective_target_has_w_floating_suffix): Use options for c++ only.
	(check_effective_target_has_q_floating_suffix): Ditto.

From-SVN: r193559

re PR c++/55337 (ICE tree check: expected sizeof_expr, have alignof_expr in cp_tree_equal, at cp/tree.c:2608)

	PR c++/55337
	* tree.c (cp_tree_equal) <case ALIGNOF_EXPR>: Use SIZEOF_EXPR_TYPE_P
	only on SIZEOF_EXPR.

	* g++.dg/template/alignof2.C: New test.

From-SVN: r193558

	PR other/55333
	* include/sanitizer/common_interface_defs.h (uhwptr): New type
	for hardware pointer.
	* sanitizer_common/sanitizer_stacktrace.cc (StackTrace::FastUnwindStack):
	Replace uptr with uhwptr for stack unwind.

From-SVN: r193557

From-SVN: r193556

	* g++.dg/mv1.C (dg-options): Add -march=x86-64.
	* g++.dg/mv6.C (dg-options): Ditto.

From-SVN: r193555

re PR tree-optimization/54073 (SciMark Monte Carlo test performance has seriously decreased in recent GCC releases)

	PR target/54073
	* config/i386/i386.md (mov<mode>cc): Use comparison_operator
	instead of ordered_comparison_operator resp.
	ix86_fp_comparison_operator predicates.
	* config/i386/i386.c (ix86_expand_fp_movcc): Reject TImode
	or for -m32 DImode comparisons.

From-SVN: r193554

	PR tree-optimization/54717
	* tree-ssa-pre.c (do_partial_partial_insertion): Consider also edges
	with ANTIC_IN.

From-SVN: r193553

libsanitizer/ChangeLog:

	* configure.tgt: Enable sparc linux.

From-SVN: r193552

	(check_effective_target_has_w_floating_suffix): New procedure.
	(check_effective_target_has_q_floating_suffix): Ditto.
	* g++.dg/cpp0x/gnu_fext-numeric-literals.C: Add dg-error directive
	for unsupported non-standard suffix on floating constant.
	* g++.dg/cpp0x/std_fext-numeric-literals.C: Ditto.

From-SVN: r193551

	* config/i386/i386-protos.h (ix86_emit_mode_set): Add third argument.
	* config/i386/i386.h (EMIT_MODE_SET): Update.
	* config/i386/i386.c (ix86_avx_emit_vzeroupper): New function.
	(ix86_emit_mode_set) <AVX_U128>: Call ix86_avx_emit_vzeroupper.

From-SVN: r193550

From-SVN: r193549

From-SVN: r193548

	* expmed.c (expand_shift_1): Don't strip non-integral SUBREGs.

From-SVN: r193547

From-SVN: r193546

gcc/

2012-11-15  David S. Miller  <davem@davemloft.net>

	* configure.ac: Add check for assembler SPARC4 instruction
	support.
	* configure: Rebuild.
	* config.in: Add HAVE_AS_SPARC4 section.
	* config/sparc/sparc.opt (mcbcond): New option.
	* doc/invoke.texi: Document it.
	* config/sparc/constraints.md: New constraint 'A' for 5-bit signed
	immediates.
	* doc/md.texi: Document it.
	* config/sparc/sparc.c (dump_target_flag_bits): Handle MASK_CBCOND.
	(sparc_option_override): Likewise.
	(emit_cbcond_insn): New function.
	(emit_conditional_branch_insn): Call it.
	(emit_cbcond_nop): New function.
	(output_ubranch): Use cbcond, remove label arg.
	(output_cbcond): New function.
	* config/sparc/sparc-protos.h (output_ubranch): Update.
	(output_cbcond): Declare it.
	(emit_cbcond_nop): Likewise.
	* config/sparc/sparc.md (type attribute): New types 'cbcond'
	and uncond_cbcond.
	(emit_cbcond_nop): New attribute.
	(length attribute): Handle cbcond and uncond_cbcond.
	(in_call_delay attribute): Reject cbcond and uncond_cbcond.
	(in_branch_delay attribute): Likewise.
	(in_uncond_branch_delay attribute): Likewise.
	(in_annul_branch_delay attribute): Likewise.
	(*cbcond_sp32, *cbcond_sp64): New insn patterns.
	(jump): Rewrite into an expander.
	(*jump_ubranch, *jump_cbcond): New patterns.
	* config/sparc/niagara4.md: Match 'cbcond' in 'n4_cti'.
	* config/sparc/sparc.h (AS_NIAGARA4_FLAG): New macro, use it
	when target default is niagara4.
	(SPARC_SIMM5_P): Define.
	* config/sparc/sol2.h (AS_SPARC64_FLAG): Adjust.
	(AS_SPARC32_FLAG): Define.
	(ASM_CPU32_DEFAULT_SPEC, ASM_CPU64_DEFAULT_SPEC): Use
	AS_NIAGARA4_FLAG as needed.

From-SVN: r193543

From-SVN: r193542

From-SVN: r193540

2012-11-15  Steve Ellcey  <sellcey@mips.com>

	* expr.c (expand_cond_expr_using_cmove): Use promoted mode for temp.

From-SVN: r193539

2012-11-15  Tobias Burnus  <burnus@net-b.de>
            Joseph Myers  <joseph@codesourcery.com>

        * math/fmaq.c (fmaq): Merge from GLIBC. Fix fma
        underflows with small x * y; Fix overflow results
        outside round-to-nearest mode; make use of Dekker
        and Knuth algorithms use round-to-nearest.


Co-Authored-By: Joseph Myers <joseph@codesourcery.com>

From-SVN: r193538

2012-11-15  Tom de Vries  <tom@codesourcery.com>

	PR tree-optimization/54619
	* tree-ssa-loop-ivopts.c (get_use_type): New function.
	(get_computation_at): Use get_use_type.
	(get_computation_cost_at): Declare and set mem_mode.  Use mem_mode.

From-SVN: r193537

* MAINTAINERS: (libsanitizer, asan.c): Add myself,
Kostya Serebryany (kcc@google.com) and
Jakub Jelinek (jakub@redhat.com).
Rename area for Dodji Seketeli (dodji@redhat.com).

From-SVN: r193536

	PR c++/54903
	* decl2.c (mark_used): Don't complain about auto in templates.

From-SVN: r193535

	* configure.ac: Properly set MULTISUBDIR.
	* asan/Makefile.am (gcc_version): New.
	* interception/Makefile.am (gcc_version): Likewise.
	* sanitizer_common/Makefile.am (gcc_version): Likewise.
	* configure: Regenerated.
	* asan/Makefile.in: Likewise.
	* interception/Makefile.in: Likewise.
	* sanitizer_common/Makefile.in: Likewise.

From-SVN: r193534

	* asan.c (report_error_func): Set DECL_IGNORED_P, don't touch
	DECL_ASSEMBLER_NAME.
	(asan_init_func): Likewise.
	(asan_finish_file): Use void * instead of __asan_global * as
	type of __asan_{,un}register_globals.  Set DECL_IGNORED_P on
	the decls.

From-SVN: r193532

ChangeLog:

	* MAINTAINERS: (asan.c, related): Add myself.

From-SVN: r193530

2012-11-15  Matthias Klose  <doko@ubuntu.com>

        * Makefile.in (if_multiarch): Don't use a GNU make 3.81 feature.

From-SVN: r193529

From-SVN: r193527

	PR c++/37276
	* decl.c (decls_match): Remove #ifdef around earlier fix.

From-SVN: r193526

	* class.c (finish_struct_1): Check virtual functions
	for missing ABI tags.

From-SVN: r193525

	PR c++/55275
	* pt.c (maybe_process_partial_specialization): Update
	DECL_SOURCE_LOCATION for new specializations.

From-SVN: r193524

	PR libstdc++/53841
	* include/std/condition_variable (condition_variable::wait_until):
	Handle clocks with higher resolution than __clock_t.
	(condition_variable::__wait_until_impl): Remove unnecessary _Clock
	parameter.
	* testsuite/30_threads/condition_variable/members/53841.cc: New.

From-SVN: r193523

	PR bootstrap/55051
	* gcov-io.c (gcov_read_summary): Fix array bound check.

From-SVN: r193522

	* configure.ac (ENABLE_GOLD): Consider *-*-nacl* targets ELF.
	* configure: Regenerate.

From-SVN: r193521

From-SVN: r193519

	PR other/55291
	* configure.ac (--enable-version-specific-runtime-libs): New option.
	(AC_CANONICAL_SYSTEM): New.
	(AM_ENABLE_MULTILIB): Moved right after AM_INIT_AUTOMAKE.
	(toolexecdir): Support multilib.
	(toolexeclibdir): Likewise.
	(multilib_arg): New.
	* Makefile.in: Regenerated.
	* aclocal.m4: Likewise.
	* configure: Likewise.
	* asan/Makefile.in: Likewise.
	* interception/Makefile.in: Likewise.
	* sanitizer_common/Makefile.in: Likewise.

From-SVN: r193516

2012-11-14  Sterling Augustine  <saugustine@google.com>

	PR debug/55328
	* dwarf2out.c (index_address_table_entry): Check a node's refcount.

From-SVN: r193515

	PR libstdc++/55320
	* include/std/functional (function::function(F)): Set _M_manager after
	operations that could throw.
	(_Function_base::_Ref_manager::_M_init_functor): Use addressof.
	* include/tr1/functional
	(_Function_base::_Ref_manager::_M_init_functor): Use addressof.
	(_Function_base::_Base_manager::_M_get_pointer): Likewise.
	* testsuite/20_util/function/cons/55320.cc: New.
	* testsuite/20_util/function/cons/addressof.cc: New.
	* testsuite/20_util/function/cons/callable.cc: Remove header.
	* testsuite/20_util/bind/ref_neg.cc: Adjust dg-error line numbers.
	* testsuite/tr1/3_function_objects/function/10.cc: New.

From-SVN: r193514