2011-05-25  Paolo Carlini  <paolo.carlini@oracle.com>

	* include/std/thread: Use noexcept throughout per the FDIS.
	* include/std/mutex: Likewise.

From-SVN: r174202

	PR c++/48292
	* pt.c (tsubst_decl) [PARM_DECL]: Handle partial instantiation of
	function parameter pack.
	(tsubst_pack_expansion): Likewise.

From-SVN: r174201

	* cp-objcp-common.c (cp_common_init_ts): TYPE_ARGUMENT_PACK has
	TS_COMMON.

From-SVN: r174200

From-SVN: r174198

gcc/

2011-05-25  H.J. Lu  <hongjiu.lu@intel.com>

	* config/i386/i386.c (ix86_builtins): Add IX86_BUILTIN_PAUSE.
	(bdesc_special_args): Add pause intrinsic.

	* config/i386/i386.md (UNSPEC_PAUSE): New.
	(pause): Likewise.
	(*pause): Likewise.
	* config/i386/ia32intrin.h (__pause): Likewise.

	* doc/extend.texi (X86 Built-in Functions): Add documentation for
	pause intrinsic.

gcc/testsuite/

2011-05-25  H.J. Lu  <hongjiu.lu@intel.com>

	 * gcc.target/i386/pause-1.c: New.

From-SVN: r174197

2011-05-25  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	PR tree-optimization/46728
	* tree-ssa-math-opts.c (gimple_expand_builtin_pow): New.
	(execute_cse_sincos): Add switch case for BUILT_IN_POW.

From-SVN: r174196

move TS_EXP to be a substructure of TS_TYPED
gcc/
	* tree.h (struct tree_exp): Inherit from struct tree_typed.
	* tree.c (initialize_tree_contains_struct): Mark TS_EXP as TS_TYPED
	instead of TS_COMMON.

gcc/lto/
	* lto.c (lto_ft_typed): New function.
	(lto_ft_common): Call it.
	(lto_ft_constructor): Likewise.
	(lto_ft_expr): Likewise.
	(lto_fixup_prevailing_decls): Check for TS_COMMON before accessing
	TREE_CHAIN.

From-SVN: r174192

	gcc/
	* libgcc2.h (__NW, __NDW): Define using a __gnu_ prefix if
	LIBGCC2_GNU_PREFIX is defined.
	(__N): New macro.
	(__powisf2, __powidf2, __powitf2, __powixf2, __bswapsi2, __bswapdi2,
	__mulsc3, __muldc3, __mulxc3, __multc3, __divsc3, __divdc3, __divxc3,
	__divtc3, __udiv_w_sdiv, __clear_cache, __enable_execute_stack,
	__clz_tab): Define using __N.
	(__absvsi2, __negvsi2, __addvsi3, __subvsi3, __mulvsi3): Likewise if
	COMPAT_SIMODE_TRAPPING_ARITHMETIC.
	* target.def (libfunc_gnu_prefix): New hook.
	* doc/tm.texi.in (LIBGCC2_GNU_PREFIX): Document.
	(TARGET_LIBFUNC_GNU_PREFIX): Add hook.
	* doc/tm.texi: Regenerate.
	* system.h (LIBGCC2_GNU_PREFIX): Poison.
	* optabs.c (gen_libfunc): Take the libfunc_gnu_prefix hook into
	account.
	(gen_interclass_conv_libfunc, gen_intraclass_conv_libfunc): Likewise.
	(init_optabs): Likewise for the bswap libfuncs.
	* tree.c (build_common_builtin_nodes): Likewise for complex multiply
	and divide.
	* config/t-slibgcc-elf-ver (SHLIB_MAPFILES): Use $$(libgcc_objdir).
	* config/t-slibgcc-sld (SHLIB_MAPFILES): Likewise.
	* libgcc-std.ver: Remove.
	* Makefile.in (srcdirify): Handle $$(libgcc_objdir).
	* config/frv/t-linux (SHLIB_MAPFILES): Use $$(libgcc_objdir) for
	libgcc-std.ver.
	* config/i386/t-linux (SHLIB_MAPFILES): Likewise.
	* config/mips/t-slibgcc-irix (SHLIB_MAPFILES): Likewise.
	* config/rs6000/t-aix43 (SHLIB_MAPFILES): Likewise.
	* config/rs6000/t-aix52 (SHLIB_MAPFILES): Likewise.
	* config/sparc/t-linux (SHLIB_MAPFILES): Likewise.
	* config/i386/t-linux (SHLIB_MAPFILES): Likewise.
	* config/i386/t-linux (SHLIB_MAPFILES): Likewise.
	* config/fixed-bit.h (FIXED_OP): Define differently depending on
	LIBGCC2_GNU_PREFIX. All uses changed not to pass leading underscores.
	(FIXED_CONVERT_OP, FIXED_CONVERT_OP2): Likewise.

	libgcc/
	* libgcc-std.ver.in: New file.
	* Makefile.in (LIBGCC_VER_GNU_PREFIX, LIBGCC_VER_SYMBOLS_PREFIX): New
	variables.
	(libgcc-std.ver): New rule.
	* config/t-gnu-prefix: New file.

From-SVN: r174187

	* lto-streamer-out.c (output_record_start): Use lto_output_enum
	(lto_output_tree): Use output_record_start.
	* lto-streamer-in.c (input_record_start): Use lto_input_enum
	(lto_get_pickled_tree): Use input_record_start.
	* lto-section-in.c (lto_section_overrun): Turn into fatal error.
	(lto_value_range_error): New function.
	* lto-streamer.h (lto_value_range_error): Declare.
	(lto_output_int_in_range, lto_input_int_in_range): New functions.
	(lto_output_enum, lto_input_enum): New macros.

From-SVN: r174186

adaint.c (__gnat_to_canonical_file_list_next): Use array initialization instead of const/none-const pointer assignment.

2011-05-25  Kai Tietz  <ktietz@redhat.com>

        * adaint.c (__gnat_to_canonical_file_list_next): Use array
        initialization instead of const/none-const pointer assignment.

From-SVN: r174185

	* common.opt (flag_stack_usage_info): New variable.
	(-Wstack-usage): New option.
	* doc/invoke.texi (Warning options): Document -Wstack-usage.
	* opts.c (common_handle_option) <OPT_Wstack_usage_>: New case.
	<OPT_fstack_usage>: Likewise.
	* toplev.c (output_stack_usage): Handle -Wstack-usage.
	* calls.c (expand_call): Test flag_stack_usage_info variable instead
	of flag_stack_usage.
	(emit_library_call_value_1): Likewise.
	* explow.c (allocate_dynamic_stack_space): Likewise.
	* function.c (instantiate_virtual_regs ): Likewise.
	(prepare_function_start): Likewise.
	(rest_of_handle_thread_prologue_and_epilogue): Likewise.
	* config/alpha/alpha.c (alpha_expand_prologue): Likewise.
	* config/arm/arm.c (arm_expand_prologue): Likewise.
	(thumb1_expand_prologue): Likewise.
	* config/avr/avr.c (expand_prologue): Likewise.
	* config/i386/i386.c (ix86_expand_prologue): Likewise.
	* config/ia64/ia64.c (ia64_expand_prologue): Likewise.
	* config/m68k/m68k.c (m68k_expand_prologue): Likewise.
	* config/mips/mips.c (mips_expand_prologue): Likewise.
	* config/pa/pa.c (hppa_expand_prologue): Likewise.
	* config/rs6000/rs6000.c (rs6000_emit_prologue): Likewise.
	* config/s390/s390.c (s390_emit_prologue): Likewise.
	* config/sh/sh.c (sh_expand_prologue): Likewise.
	* config/sparc/sparc.c (sparc_expand_prologue): Likewise.
	* config/spu/spu.c (spu_expand_prologue): Likewise.

From-SVN: r174182

2011-05-25  Richard Guenther  <rguenther@suse.de>

	* gimple.c (iterative_hash_canonical_type): Skip non-FIELD_DECLs.
	(gimple_canonical_types_compatible_p): Likewise.

From-SVN: r174181

re PR middle-end/49062 (Many C++ tests ICE on Tru64 UNIX: non-DECL_ONE_ONLY node in a same_comdat_group list)

2011-05-25  Jan Hubicka  <jh@suse.cz>

	PR middle-end/49062
	* ipa.c (function_and_variable_visibility): Only add to same
	comdat group list if DECL_ONE_ONLY.

From-SVN: r174180

re PR rtl-optimization/49014 (ICE: in reset_sched_cycles_in_current_ebb, at sel-sched.c:7132 with even more insane set of flags)

        PR rtl-optimization/49014
        * config/i386/athlon.md (athlon_ssecomi): Change type to ssecomi.

From-SVN: r174172

	PR target/49128
	* config/i386/driver-i386.c (host_detect_local_cpu): Fix a typo.

From-SVN: r174171

	* cp-objcp-common.c (cp_common_init_ts): Mark CTOR_INITIALIZER
	as TS_TYPED.

From-SVN: r174170

	PR c++/49136
	* semantics.c (cxx_eval_bit_field_ref): Handle the
	case when BIT_FIELD_REF doesn't cover only a single field.

	* g++.dg/cpp0x/constexpr-bitfield2.C: New test.
	* g++.dg/cpp0x/constexpr-bitfield3.C: New test.

From-SVN: r174168

	PR go/48502
libgo/os: Fix test to run on Solaris.

Patch brought over from upstream library.

From-SVN: r174167

2011-05-24  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/48757
	* ira-build.c (loop_with_eh_edge_p): Rename to
	loop_with_complex_edge_p, check edges on complexity, make function
	conditional.
	(mark_loops_for_removal): Make call of loop_with_complex_edge_p
	conditional.

2011-05-24  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/48757
	* gfortran.dg/pr48757.f:  New test case.

From-SVN: r174165

From-SVN: r174157

2011-05-24  Paolo Carlini  <paolo.carlini@oracle.com>

	* testsuite/20_util/duration/arithmetic/dr2020.cc: Fix typo.

From-SVN: r174152

	PR c++/49042
	* pt.c (get_mostly_instantiated_function_type): Use
	push_deferring_access_checks rather than set flag_access_control.

From-SVN: r174151

re PR libstdc++/49151 ([C++0x][constexpr] chrono::duration has incorrect non-member operator semantics)

2011-05-24  Paolo Carlini  <paolo.carlini@oracle.com>

	PR libstdc++/49151
	* include/std/chrono (operator+, operator-, operator*, operator/,
	operator&): Implement LWG 2020 [WP]; specify constexpr.
	* testsuite/20_util/duration/arithmetic/dr2020.cc: New.

From-SVN: r174150

	* config/sparc/sparc.c (sparc_option_override): If not set by the user,
	force flag_ira_share_save_slots to 0.

From-SVN: r174148

From-SVN: r174147

	* var-tracking.c (compute_cfa_pointer): Adjust head comment.
	(vt_initialize): Set PROLOGUE_BB unconditionally.
	Add block comment about CFA_BASE_RTX machinery.
	Reset FP_CFA_OFFSET to -1 on all invalid paths.
	Call vt_init_cfa_base only if FP_CFA_OFFSET isn't equal to -1.

From-SVN: r174146

From Rainer Orth.

From-SVN: r174145

From Rainer Orth.

From-SVN: r174144

In libobjc/:
2011-05-24  Nicola Pero  <nicola.pero@meta-innovation.com>

	PR libobjc/48177
	* selector.c (__sel_register_typed_name): Use sel_types_match()
	instead of strcmp() to compare selector types (Suggestion by
	Richard Frith-Macdonald <rfm@gnu.org>).

In gcc/testsuite/:
2011-05-24  Nicola Pero  <nicola.pero@meta-innovation.com>

	PR libobjc/48177
	* objc.dg/pr48177.m: New testcase.

From-SVN: r174143

In gcc/:
2011-05-24  Nicola Pero  <nicola.pero@meta-innovation.com>

	PR objc/48187
	* c-parser.c (c_parser_objc_class_instance_variables): More robust
	parsing of syntax error in ObjC instance variable lists.  In
	particular, avoid an infinite loop if there is a stray ']'.
	Updated error message.

In gcc/cp/:
2011-05-24  Nicola Pero  <nicola.pero@meta-innovation.com>,

	* parser.c (cp_parser_objc_class_ivars): Deal gracefully with a
	syntax error in declaring an ObjC instance variable.

In gcc/testsuite/:
2011-05-24  Nicola Pero  <nicola.pero@meta-innovation.com>

	PR objc/48187
	* objc.dg/pr48187.m: New testcase.
	* obj-c++.dg/pr48187.mm: New testcase.
	* objc.dg/ivar-extra-semicolon.m: New testcase.

From-SVN: r174142

	* godump.c (go_define): Don't accept a string immediately after
	another operand.

From-SVN: r174141

	* godump.c (struct godump_container): Add invalid_hash field.
	(go_format_type): Return false if type is found in invalid_hash.
	(go_output_typedef): Add invalid type to invalid_hash.
	(go_finish): Create and delete invalid_hash.

From-SVN: r174140

	PR c++/48884
	* class.c (pushclass): Accept NULL argument.
	(popclass): Deal with popping null class.
	* pt.c (push_access_scope, pop_access_scope): Use them rather than
	push_to_top_level/pop_from_top_level.
	(push_deduction_access_scope, pop_defarg_context): New.
	(fn_type_unification): Use them.
	* name-lookup.c (lookup_name_real_1): Check current_class_type.

From-SVN: r174139

2011-05-24  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
	
	PR tree-optimization/46728
	* tree-ssa-math-opts.c (powi_table): New.
	(powi_lookup_cost): New.
	(powi_cost): New.
	(powi_as_mults_1): New.
	(powi_as_mults): New.
	(gimple_expand_builtin_powi): New.
	(execute_cse_sincos): Add switch case for BUILT_IN_POWI.
	(gate_cse_sincos): Remove sincos/cexp restriction.

From-SVN: r174129

	PR target/3746
	* config.gcc (alpha*-dec-osf5.1*): Only build mips-tfile,
	mips-tdump native.
	* mips-tfile.c: Remove CROSS_DIRECTORY_STRUCTURE handling.
	* mips-tdump.c: Likewise.

From-SVN: r174128

2011-05-24  H.J. Lu  <hongjiu.lu@intel.com>

	PR target/49128
	* config/i386/driver-i386.c (host_detect_local_cpu): Always
	add -mno-XXX.  Handle FMA.

From-SVN: r174126

2011-05-24  Paolo Carlini  <paolo.carlini@oracle.com>

	* decl.c (grokdeclarator): Use current_class_name.

From-SVN: r174125

2011-05-24  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/48633
	* ira-build.c (loop_with_eh_edge_p): New function.
	(mark_loops_for_removal): Use it.

2011-05-24  Michael Matz  <matz@gcc.gnu.org>

	PR rtl-optimization/48633
	* g++.dg/pr48633.C: New test.

From-SVN: r174124

2011-05-13  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/48971
	* ira.c (setup_pressure_classes): Don't check register move cost
	for classes with one registers.  Don't add pressure class if there
	is a pressure class with the same available hard registers.
	Check contains_reg_of_mode.  Fix a typo in collecting
	temp_hard_regset.  Ignore hard registers not belonging to a class.

From-SVN: r174123

	PR target/49133
	* config/i386/sse.md (sse2_loadhpd): Remove shufpd alternative.

testsuite/ChangeLog:

	PR target/49133
	* g++.dg/other/pr49133.C: New test.

From-SVN: r174122