gcc/
	* config/arm/arm.c (arm_override_options): Add unaligned_access
	support.
	(arm_file_start): Emit attribute for unaligned access as
	appropriate.
	* config/arm/arm.md (UNSPEC_UNALIGNED_LOAD)
	(UNSPEC_UNALIGNED_STORE): Add constants for unspecs.
	(insv, extzv): Add unaligned-access support.
	(extv): Change to expander. Likewise.
	(extzv_t1, extv_regsi): Add helpers.
	(unaligned_loadsi, unaligned_loadhis, unaligned_loadhiu)
	(unaligned_storesi, unaligned_storehi): New.
	(*extv_reg): New (previous extv implementation).
	* config/arm/arm.opt (munaligned_access): Add option.
	* config/arm/constraints.md (Uw): New constraint.
	* expmed.c (store_bit_field_1): Adjust bitfield numbering according
	to size of access, not size of unit, when BITS_BIG_ENDIAN !=
	BYTES_BIG_ENDIAN. Don't use bitfield accesses for
	volatile accesses when -fstrict-volatile-bitfields is in effect.
	(extract_bit_field_1): Likewise.

From-SVN: r178852

simplify-rtx.c (simplify_subreg): Check that the inner mode is a scalar integer before applying integer-only...

gcc/
	* simplify-rtx.c (simplify_subreg): Check that the inner mode is
	a scalar integer before applying integer-only optimisations to
	inner arithmetic.

From-SVN: r178848

	* config/mips/mips.c (mips_expand_epilogue): Generate a
	simple_return only if the return address is in r31.

From-SVN: r178847

2011-09-14  Tobias Burnus  <burnus@net-b.de>

        PR fortran/34547
        PR fortran/50375
        * gfortran.dg/null_5.f90: New.
        * gfortran.dg/null_6.f90: New.

From-SVN: r178842

2011-09-14  Tobias Burnus  <burnus@net-b.de>

        PR fortran/34547
        PR fortran/50375
        * check.c (gfc_check_null): Allow allocatables as MOLD to NULL.
        * resolve.c (resolve_transfer): Reject NULL without MOLD.
        * interface.c (gfc_procedure_use): Reject NULL without MOLD
        if no explicit interface is known.
        (gfc_search_interface): Reject NULL without MOLD if it would
        lead to ambiguity.

2011-09-14  Tobias Burnus  <burnus@net-b.de>

        PR fortran/34547
        PR fortran/50375
        * gfortran.dg/null_5.f90: New.
        * gfortran.dg/null_6.f90: New.

From-SVN: r178841

From-SVN: r178839

From-SVN: r178835

	* cfgcleanup.c (try_head_merge_bb): If get_condition returns
	NULL for a jump that is a cc0 insn, pick the previous insn for
	move_before.

	* gcc.c-torture/compile/20110913-1.c: New test.

From-SVN: r178834

	* testsuite-management: New.
	* testsuite-management/validate_failures.py: New.

From-SVN: r178833

2011-09-13  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/50379
	* symbol.c (check_conflict): Check conflict between GENERIC and RESULT
	attributes.


2011-09-13  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/50379
	* gfortran.dg/result_2.f90: New.

From-SVN: r178829

From-SVN: r178827

gcc/
	* config/v850/v850.md: Use match_test rather than eq/ne symbol_ref
	throughout file.

From-SVN: r178826

gcc/
	* config/pa/pa.md: Use match_test rather than eq/ne symbol_ref
	throughout file.

From-SVN: r178825

gcc/
	* config/mn10300/mn10300.md: Use match_test rather than eq/ne
	symbol_ref throughout file.

From-SVN: r178824

gcc/
	* config/m68k/m68k.md: Use match_test rather than eq/ne symbol_ref
	throughout file.

From-SVN: r178823

gcc/
	* config/h8300/h8300.md: Use match_test rather than eq/ne symbol_ref
	throughout file.

From-SVN: r178822

gcc/
	* config/arm/arm.md: Use match_test rather than eq/ne symbol_ref
	throughout file.
	* config/arm/neon.md: Likewise.
	* config/arm/vfp.md: Likewise.
	* config/arm/thumb2.md: Likewise.
	* config/arm/cortex-m4.md: Likewise.

From-SVN: r178821

From-SVN: r178818

2011-09-13  Sevak Sargsyan <sevak.sargsyan@ispras.ru>

	* config/arm/neon.md (neon_vabd<mode>_2, neon_vabd<mode>_3): New
	define_insn patterns for combine.

	* gcc.target/arm/neon-combine-sub-abs-into-vabd.c: New test.

From-SVN: r178817

gcc/
2011-09-13  Giuseppe Scrivano  <gscrivano@gnu.org>

	* reorg.c: Always define make_return_insns.

From-SVN: r178813

gcc/cp/

	PR c++/48320
	* pt.c (template_parameter_pack_p):  Support TEMPLATE_PARM_INDEX
	nodes.  Add a comment.
	(arg_from_parm_pack_p):  New static function, factorized out from
	tsubst_pack_expansion and extended to support non-type parameter
	packs represented with TEMPLATE_PARM_INDEX nodes.
	(tsubst_pack_expansion): Use arg_from_parm_pack_p.

gcc/testsuite/

	PR c++/48320
	* g++.dg/cpp0x/variadic116.C: New test case.

From-SVN: r178811

	PR other/49533
	* cgraphunit.c (assemble_thunks_and_aliases): Force alias to be output.

From-SVN: r178810

	other/49533
	* ipa-inline-transform.c (can_remove_node_now_p): Fix thunkos.

From-SVN: r178809

2011-09-13  Paul Brook  <paul@codesourcery.com>
 
	gcc/
	* config/arm/arm.h (ASM_PREFERRED_EH_DATA_FORMAT): Define.
	(ARM_TARGET2_DWARF_FORMAT): Provide default definition.
	* config/arm/linux-eabi.h (ARM_TARGET2_DWARF_FORMAT): Define.
	* config/arm/symbian.h (ARM_TARGET2_DWARF_FORMAT): Define.
	* config/arm/uclinux-eabi.h(ARM_TARGET2_DWARF_FORMAT): Define.
	* config/arm/t-bpabi (EXTRA_HEADERS): Add unwind-arm-common.h.
	* config/arm/t-symbian (EXTRA_HEADERS): Add unwind-arm-common.h.
	* config/c6x/c6x.c (c6x_output_file_unwind): Don't rely on dwarf2 code
	enabling unwind tables.
	(c6x_debug_unwind_info): New function.
	(TARGET_ARM_EABI_UNWINDER): Define.
	(TARGET_DEBUG_UNWIND_INFO): Define.
	* config/c6x/c6x.h (DWARF_FRAME_RETURN_COLUMN): Define.
	(TARGET_EXTRA_CFI_SECTION): Remove.
	* config/c6x/t-c6x-elf (EXTRA_HEADERS): Set.
	* ginclude/unwind-arm-common.h: New file.

	libgcc/
	* config.host (tic6x-*-*): Add c6x/t-c6x-elf.  Set unwind_header.
	* unwind-c.c (PERSONALITY_FUNCTION): Use UNWIND_POINTER_REG.
	* unwind-arm-common.inc: New file.
	* config/arm/unwind-arm.c: Use unwind-arm-common.inc.
	* config/arm/unwind-arm.h: Use unwind-arm-common.h.
	(_GLIBCXX_OVERRIDE_TTYPE_ENCODING): Define.
	* config/c6x/libunwind.S: New file.
	* config/c6x/pr-support.c: New file.
	* config/c6x/unwind-c6x.c: New file.
	* config/c6x/unwind-c6x.h: New file.
	* config/c6x/t-c6x-elf: New file.


	libstdc++-v3/
	* libsupc++/eh_arm.cc (__cxa_end_cleanup): Add C6X implementation.
	* libsupc++/eh_call.cc (__cxa_call_unexpected): Set rtti_base.
	* libsupc++/eh_personality.cc (NO_SIZE_OF_ENCODED_VALUE): Remove
	__ARM_EABI_UNWINDER__ check.
	(parse_lsda_header): Check _GLIBCXX_OVERRIDE_TTYPE_ENCODING.
	(get_ttype_entry): Use generic implementation on ARM EABI.
	(check_exception_spec): Use _Unwind_decode_typeinfo_ptr and
	UNWIND_STACK_REG.
	(PERSONALITY_FUNCTION): Set ttype_base.

From-SVN: r178808

	
	PR target/50358
	* config/avr/predicates.md (const_1_to_6_operand): New predicate.
	* config/avr/avr.md: (extend_s): New code attribute.
	(mul_r_d): New code attribute.
	(*maddqihi4, *umaddqihi4): New insns.
	(*msubqihi4, *umsubqihi4): New insns.
	(*usmaddqihi4, *sumaddqihi4): New insns.
	(*usmsubqihi4, *susubdqihi4): New insns.
	(*umaddqihi4.uconst, *maddqihi4.sconst): New insn-and-splits.
	(*umsubqihi4.uconst, *msubqihi4.sconst): New insn-and-splits.
	(*umsubqihi4.uconst.ashift): New insn-and-split.
	(*msubqihi4.sconst.ashift): New insn-and-split.
	(*sumaddqihi4.uconst): New insn-and-split.
	(*sumsubqihi4.uconst): New insn-and-split.
	* config/avr/avr.c (avr_rtx_costs): Report costs of above in case
	PLUS:HI and MINUS:HI.

From-SVN: r178806

From-SVN: r178804

From-SVN: r178803

2011-09-12  Daniel Krugler  <daniel.kruegler@googlemail.com>
	    Paolo Carlini  <paolo.carlini@oracle.com>

	* include/std/tuple (_Head_base<>::_M_head, _Head_base<>::_M_tail,
	_Tuple_impl<>::_M_head, _Tuple_impl<>::_M_tail): Change to static
	constexpr functions; adjust everywhere.
	(__get_helper, get): Declare constexpr all three overloads.
	(tuple_cat): Declare constexpr; use late return type to improve
	error messages.
	* include/std/utility (__pair_get<>::__get, __pair_get<>::__move_get,
	__pair_get<>::__const_get, get): Declare all constexpr.
	* include/std/array (get): Likewise.
	* testsuite/20_util/tuple/creation_functions/constexpr.cc: Re-enable
	tuple_cat test.
	* testsuite/23_containers/array/constexpr_get.cc: New.
	* testsuite/20_util/tuple/element_access/constexpr_get.cc: Likewise.
	* testsuite/20_util/pair/constexpr_get.cc: Likewise.
	* testsuite/20_util/weak_ptr/comparison/cmp_neg.cc: Adjust dg-error
	line number.

Co-Authored-By: Paolo Carlini <paolo.carlini@oracle.com>

From-SVN: r178799

	* rtl.c (copy_rtx): Do not handle frame_related, jump or call
	flags specially.

From-SVN: r178798

	PR bootstrap/50010
	* dwarf2cfi.c (add_cfis_to_fde): Ignore non-active insns in between
	NOTE_INSN_CFI notes, with the exception of
	NOTE_INSN_SWITCH_TEXT_SECTIONS.

From-SVN: r178795

gcc/
2011-09-11  Bernd Schmidt  <bernds@codesourcery.com>
	    Richard Sandiford  <rdsandiford@googlemail.com>

	* config/mips/mips.c (mips_epilogue): New structure.
	(mips16e_save_restore_reg): Queue REG_CFA_RESTORE notes when
	restoring registers.
	(mips_epilogue_emit_cfa_restores): New function.
	(mips_epilogue_set_cfa): Likewise.
	(mips_restore_reg): Queue REG_CFA_RESTORE notes.  When restoring
	the current CFA register from the stack, redefine the CFA in terms
	of the stack pointer.
	(mips_expand_epilogue): Set up mips_epilogue.  Attach CFA information
	to the epilogue instructions.

gcc/testsuite/
	* gcc.target/mips/mips.exp (mips_option_groups): Add debug options.
	* gcc.target/mips/interrupt_handler-2.c: New test.
	* gcc.target/mips/interrupt_handler-3.c: Likewise.

From-SVN: r178794

gcc/
	* config/mips/mips.c (mips16e_save_restore_reg): Add a reg_parm_p
	argument.
	(mips16e_build_save_restore): Update accordingly.

From-SVN: r178793

	* pt.c (type_unification_real): Fix handling of DEDUCE_CONV
	with no deducible template parameters.
	* call.c (rejection_reason_code): Add rr_template_conversion.
	(print_z_candidate): Handle it.
	(template_conversion_rejection): New.
	(build_user_type_conversion_1): Use it.

From-SVN: r178791

call.c (merge_conversion_sequences): Set bad_p and user_conv_p on all of the second conversion sequence.

	* call.c (merge_conversion_sequences): Set bad_p and user_conv_p
	on all of the second conversion sequence.
	(build_user_type_conversion_1): Set bad_p on the ck_user conv.
	(convert_like_real): Handle bad ck_ref_bind with user_conv_p in the
	first section.  Fix loop logic.
	(initialize_reference): Call convert_like for diagnostics when
	we have a (bad) conversion.

From-SVN: r178790

	(convert_class_to_reference_1): Remove.
	(reference_binding): Use build_user_type_conversion_1 instead.

From-SVN: r178789

	* call.c (initialize_reference): Add flags parm.
	* decl.c (grok_reference_init): Likewise.
	(check_initializer): Pass it.
	* typeck.c (convert_for_initialization): Likewise.
	* cp-tree.h: Adjust.

From-SVN: r178788

	* cp-tree.h (LOOKUP_NO_RVAL_BIND): New.
	* call.c (conditional_conversion): Use it.
	(reference_binding): Fix handling of xvalues.

From-SVN: r178787

	* call.c (implicit_conversion): Check BRACE_ENCLOSED_INITIALIZER_P
	before forcing instantiation.

From-SVN: r178786

re PR rtl-optimization/50212 (ICE: in ei_container, at basic-block.h:610 with -fnon-call-exceptions -freorder-blocks-and-partition)

	PR rtl-optimization/50212
	* bb-reorder.c (find_rarely_executed_basic_blocks_and_crossing_edges):
	Skip also lps with NULL landing_pad or non-LABEL_P landing_pad.

	* g++.dg/other/pr50212.C: New test.

From-SVN: r178785

	PR debug/50299
	* calls.c (load_register_parameters): Use use_reg_mode instead
	of use_reg when adding a single register CALL_INSN_FUNCTION_USAGE
	entry.
	(expand_call): Set EXPR_LIST mode to TYPE_MODE of the argument
	for stack CALL_INSN_FUNCTION_USAGE uses.
	* expr.h (use_reg_mode): New prototype.
	(use_reg): Changed into inline around use_reg_mode.
	* expr.c (use_reg): Renamed to...
	(use_reg_mode): ... this.  Added MODE argument, set EXPR_LIST
	mode to that mode instead of VOIDmode.
	* var-tracking.c (prepare_call_arguments): Don't track parameters
	whose EXPR_LIST mode is VOIDmode, BLKmode or X mode isn't convertible
	to it using lowpart_subreg.  Convert VALUE and REG/MEM to the
	EXPR_LIST mode.

From-SVN: r178784