* cgraphunit.c (handle_alias_pairs): Also handle wekref with destination
	declared.
	(output_weakrefs): New function.
	* varpool.c (varpool_create_variable_alias): Handle external aliases.

From-SVN: r180181

	* dwarf2out.c (loc_descriptor): For SUBREG pass SUBREG_REG's mode as
	second argument instead of mode.

From-SVN: r180178

From-SVN: r180173

	* config/i386/i386.c (ix86_expand_vec_perm): In merge_two use
	mode SUBREG of operands[0] as target.
	(valid_perm_using_mode_p): Don't ignore higher bits of d->perm.
	(expand_vec_pshufb): For V8SImode vmode emit avx2_permvarv8si.
	(expand_vec_perm_1): Handle identity and some broadcast
	permutations.
	(expand_vec_perm_interleave2): Handle also 32-byte modes, using
	vperm2[fi]128 or vpunpck[lh]* followed by single insn permutation.
	For d->testing_p return true earlier to avoid creating more GC
	garbage.
	(expand_vec_perm_vpermq_perm_1): New function.
	(expand_vec_perm_vpshufb2_vpermq): For d->testing_p return true
	earlier to avoid creating more GC garbage.  Fix handling of
	V16HImode.  Avoid some SUBREGs in SET_DEST.
	(expand_vec_perm_broadcast_1): Return false for 32-byte integer
	vector modes.
	(expand_vec_perm_vpshufb4_vpermq2): New function.
	(ix86_expand_vec_perm_builtin_1): Call expand_vec_perm_vpermq_perm_1
	and expand_vec_perm_vpshufb4_vpermq2.

From-SVN: r180169

2011-10-18  Andrew Stubbs  <ams@codesourcery.com>

	gcc/
	* config/arm/driver-arm.c (host_detect_local_cpu): Close the file
	before exiting.

From-SVN: r180168

2011-10-18  Andrew Stubbs  <ams@codesourcery.com>

	gcc/
	* config/arm/driver-arm.c (host_detect_local_cpu): Close the file
	before exiting.

From-SVN: r180167

2011-10-18  Andrew Stubbs  <ams@codesourcery.com>

	PR tree-optimization/50717

	gcc/
	* tree-ssa-math-opts.c (is_widening_mult_p): Remove the 'type'
	parameter.  Calculate 'type' from stmt.
	(convert_mult_to_widen): Update call the is_widening_mult_p.
	(convert_plusminus_to_widen): Likewise.

	gcc/testsuite/
	* gcc.dg/pr50717-1.c: New file.
	* gcc.target/arm/wmul-12.c: Correct types.
	* gcc.target/arm/wmul-8.c: Correct types.

From-SVN: r180164

	PR c++/50531
	* pt.c (instantiate_decl): Recognize when a function defaulted
	outside the class is already instantiated.

From-SVN: r180162

	PR c++/50742
	* decl.c (check_previous_goto_1): Handle using-decl.

From-SVN: r180160

re PR c++/50500 ([C++0x] [DR 1082] move constructor should cause copy constructor to be deleted, but still declared)

	PR c++/50500
	DR 1082
	* class.c (type_has_user_declared_move_constructor): New.
	(type_has_user_declared_move_assign): New.
	(add_implicitly_declared_members): Add lazy copy ops
	even if there's a move.
	* method.c (lazily_declare_fn): Delete implicit copies
	if there's a move.
	(maybe_explain_implicit_delete): Explain this.  Use inform rather
	than error.
	* cp-tree.h: Declare new fns.

From-SVN: r180159

	* config/spu/spu.c (struct machine_function): New data structure.
	(spu_init_machine_status): New function.
	(spu_option_override): Install it.
	(get_pic_reg): Set and use cfun->machine->pic_reg.
	(spu_split_immediate): Do not set crtl->uses_pic_offset_table.
	(need_to_save_reg): Use cfun->machine->pic_reg instead of
	checking crtl->uses_pic_offset_table.
	(spu_expand_prologue): Likewise.

From-SVN: r180156

2011-10-18  Kirill Yukhin  <kirill.yukhin@intel.com>

	* gcc.target/i386/avx2-vpop-check.h: New header.
	* gcc.target/i386/avx2-vpaddd-3.c: New test.
	* gcc.target/i386/avx2-vpaddw-3.c: Ditto.
	* gcc.target/i386/avx2-vpaddb-3.c: Ditto.
	* gcc.target/i386/avx2-vpaddq-3.c: Ditto.
	* gcc.target/i386/avx2-vpand-3.c: Ditto.
	* gcc.target/i386/avx2-vpmulld-3.c: Ditto.
	* gcc.target/i386/avx2-vpmullw-3.c: Ditto.
	* gcc.target/i386/avx2-vpsrad-3.c: Ditto.
	* gcc.target/i386/avx2-vpsraw-3.c: Ditto.
	* gcc.target/i386/avx2-vpsrld-3.c: Ditto.
	* gcc.target/i386/avx2-vpsrlw-3.c: Ditto.
	* gcc.target/i386/avx2-vpsubb-3.c: Ditto.
	* gcc.target/i386/avx2-vpsubd-3.c: Ditto.
	* gcc.target/i386/avx2-vpsubq-3.c: Ditto.
	* gcc.target/i386/avx2-vpsubw-3.c: Ditto.

From-SVN: r180155

re PR tree-optimization/50735 (gcc.dg/torture/vector-2.c:52:1: ICE: verify_ssa failed at -O1 and above)

	PR tree-optimization/50735
	* function.c (gimplify_parameters): Use create_tmp_var instead of
	create_tmp_reg.  If parm is not TREE_ADDRESSABLE and type is complex
	or vector type, set DECL_GIMPLE_REG_P.

From-SVN: r180154

	PR fortran/50420
	* gfortran.dg/coarray_subobject_1.f90: New test.
	* gfortran.dg/coarray/subobject_1.f90: New test.

From-SVN: r180153

	PR fortran/50420
	* trans.c (gfc_build_array_ref): If type is not an array, check that
	there is nothing to do, and do nothing.

From-SVN: r180152

	PR fortran/50420
	* trans-types.c (gfc_build_array_type): Don't force lower bound to one
	in the deferred case.

From-SVN: r180151

	PR fortran/50420
	* simplify.c (simplify_cobound): Accept non-last-in-ref-chain coarrays.
	Don't set already set array ref.

From-SVN: r180150

	* array.c (gfc_find_array_ref): Remove coarray-specific handling.

From-SVN: r180149

	PR fortran/50420
	* check.c (dim_corank_check): Use gfc_get_corank to get corank.

From-SVN: r180148

	PR fortran/50420
	* trans-intrinsic.c (walk_coarray): Change AR_ELEMENT to AR_SECTION.

	PR fortran/50420
	* trans-intrinsic.c (walk_coarray): Use gfc_walk_array_ref for
	the scalarization chain initialization.

From-SVN: r180147

	PR fortran/50420
	* trans-intrinsic.c (walk_coarray): Allow subreferences after a
	coarray object reference.

From-SVN: r180146

	PR fortran/50420
	* trans-array.c (gfc_walk_array_ref): Allow zero rank arrays
	if they are coarrays.

From-SVN: r180145

	* trans-array.h (gfc_walk_array_ref): New prototype.
	* trans-array.c (gfc_walk_array_ref): New function, containing
	all but the beginning of gfc_walk_variable_expr's code.
	(gfc_walk_variable_expr): Use gfc_walk_array_ref.

From-SVN: r180144

	PR fortran/50420
	* trans-array.c (gfc_conv_expr_descriptor): Use loop.dimen instead of
	ndim for the descriptor's rank.

From-SVN: r180143

	PR fortran/50420
	* trans-array.c (gfc_conv_expr_descriptor): Count codimensions starting
	from zero, and add then the relevant offset (either ndim or loop.dimen)
	depending on context.

From-SVN: r180142

	* trans-array.c (gfc_conv_expr_descriptor): Save some horizontal space.

From-SVN: r180141

	* trans-array.c (gfc_conv_expr_descriptor): Move ndim initialization
	earlier.

From-SVN: r180140

2011-10-18  Andrew Stubbs  <ams@codesourcery.com>

	gcc/
	* config.host (arm*-*-linux*): Add driver-arm.o and x-arm.
	* config/arm/arm.opt: Add 'native' processor_type and
	arm_arch enum values.
	* config/arm/arm.h (host_detect_local_cpu): New prototype.
	(EXTRA_SPEC_FUNCTIONS): New define.
	(MCPU_MTUNE_NATIVE_SPECS): New define.
	(DRIVER_SELF_SPECS): New define.
	* config/arm/driver-arm.c: New file.
	* config/arm/x-arm: New file.
	* doc/invoke.texi (ARM Options): Document -mcpu=native,
	-mtune=native and -march=native.

From-SVN: r180139

	* parser.c: Remove ENABLE_CHECKING markers around debugging
	routines.
	(cp_lexer_dump_tokens): Add arguments START_TOKEN and CURR_TOKEN.
	Make static
	When printing CURR_TOKEN surround it in [[ ]].
	Start printing at START_TOKEN.
	Update all users.
	(cp_debug_print_tree_if_set): New.
	(cp_debug_print_context): New.
	(cp_debug_print_context_stack): New.
	(cp_debug_print_flag): New.
	(cp_debug_print_unparsed_function): New.
	(cp_debug_print_unparsed_queues): New.
	(cp_debug_parser_tokens): New.
	(cp_debug_parser): New.
	(cp_lexer_start_debugging): Set cp_lexer_debug_stream to stderr.
	(cp_lexer_stop_debugging): Set cp_lexer_debug_stream to NULL.
	* parser.h (cp_lexer_dump_tokens): Remove declaration.
	(cp_debug_parser): Declare.

From-SVN: r180136

re PR rtl-optimization/50205 (ICE: in code_motion_path_driver, at sel-sched.c:6581 with -fselective-scheduling2 and custom flags)

	PR rtl-optimization/50205
	* sel-sched.c (count_occurrences_1): Simplify on the assumption that
	p->x is a register.  Forbid substitution when the same register is
	found in a different mode.
	(count_occurrences_equiv): Assert that 'what' is a register.

	* gcc.dg/pr50205.c: New.

From-SVN: r180135

re PR tree-optimization/50767 (ICE: in refs_may_alias_p_1, at tree-ssa-alias.c:1004 with -O2 -fno-tree-copy-prop -fno-tree-dominator-opts)

2011-10-18  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/50767
	* tree-ssa-pre.c (create_expression_by_pieces): Update the
	folded statement.

	* gcc.dg/torture/pr50767.c: New testcase.

From-SVN: r180134

In gcc/objc/:
2011-10-18  Mikael Pettersson  <mikpe@it.uu.se>

	PR objc/50743
	* objc-act.c (check_duplicates): Cast TREE_VEC_LENGTH result to
	size_t to avoid signed/unsigned
	comparison.
	(insert_method_into_method_map): Likewise.

From-SVN: r180132

    * config/arm/arm.c (arm_block_move_unaligned_straight)
    (arm_adjust_block_mem, arm_block_move_unaligned_loop)
    (arm_movmemqi_unaligned): New.
    (arm_gen_movmemqi): Support unaligned block copies.

    gcc/testsuite/
    * lib/target-supports.exp (check_effective_target_arm_unaligned):
    New.
    * gcc.target/arm/unaligned-memcpy-1.c: New.
    * gcc.target/arm/unaligned-memcpy-2.c: New.
    * gcc.target/arm/unaligned-memcpy-3.c: New.
    * gcc.target/arm/unaligned-memcpy-4.c: New.

From-SVN: r180131

2011-10-18  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/47023
	* decl.c (verify_c_interop_param): Renamed to
	'gfc_verify_c_interop_param'. Add error message for polymorphic
	arguments.
	(verify_c_interop): Renamed to 'gfc_verify_c_interop'. Reject
	polymorphic variables.
	(verify_bind_c_sym): Renamed 'verify_c_interop'.
	* gfortran.h (verify_c_interop,verify_c_interop_param): Renamed.
	* check.c (gfc_check_sizeof): Ditto.
	* resolve.c (gfc_iso_c_func_interface,resolve_fl_procedure): Ditto.
	* symbol.c (verify_bind_c_derived_type): Ditto.


2011-10-18  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/47023
	* gfortran.dg/iso_c_binding_class.f03: New.

From-SVN: r180130

	* Fix ChangeLogs.

From-SVN: r180129

	* doc/md.texi (vec_widen_ushiftl_hi, vec_widen_ushiftl_lo,
	vec_widen_sshiftl_hi, vec_widen_sshiftl_lo): Document.
	* tree-pretty-print.c (dump_generic_node): Handle WIDEN_LSHIFT_EXPR,
	VEC_WIDEN_LSHIFT_HI_EXPR and VEC_WIDEN_LSHIFT_LO_EXPR.
	(op_code_prio): Likewise.
	(op_symbol_code): Handle WIDEN_LSHIFT_EXPR.
	* optabs.c (optab_for_tree_code): Handle
	VEC_WIDEN_LSHIFT_HI_EXPR and VEC_WIDEN_LSHIFT_LO_EXPR.
	(init-optabs): Initialize optab codes for vec_widen_u/sshiftl_hi/lo.
	* optabs.h (enum optab_index): Add OTI_vec_widen_u/sshiftl_hi/lo.
	* genopinit.c (optabs): Initialize the new optabs.
	* expr.c (expand_expr_real_2): Handle
	VEC_WIDEN_LSHIFT_HI_EXPR and VEC_WIDEN_LSHIFT_LO_EXPR.
	* gimple-pretty-print.c (dump_binary_rhs): Likewise.
	* tree-vectorizer.h (NUM_PATTERNS): Increase to 8.
	* tree.def (WIDEN_LSHIFT_EXPR, VEC_WIDEN_LSHIFT_HI_EXPR,
	VEC_WIDEN_LSHIFT_LO_EXPR): New.
	* cfgexpand.c (expand_debug_expr): Handle new tree codes.
	* tree-vect-patterns.c (vect_vect_recog_func_ptrs): Add
	vect_recog_widen_shift_pattern.
	(vect_handle_widen_mult_by_const): Rename...
	(vect_handle_widen_op_by_const): ...to this.  Handle shifts.
	Add a new argument, update documentation.
	(vect_recog_widen_mult_pattern): Assume that only second
	operand can be constant.  Update call to
	vect_handle_widen_op_by_const.
	(vect_recog_over_widening_pattern): Fix typo.
	(vect_recog_widen_shift_pattern): New.
	* tree-vect-stmts.c (vectorizable_type_promotion): Handle
	widening shifts.
	(supportable_widening_operation): Likewise.
	* tree-inline.c (estimate_operator_cost): Handle new tree codes.
	* tree-vect-generic.c (expand_vector_operations_1): Likewise.
	* tree-cfg.c (verify_gimple_assign_binary): Likewise.
	* config/arm/neon.md (neon_vec_<US>shiftl_<mode>): New.
	(vec_widen_<US>shiftl_lo_<mode>, neon_vec_<US>shiftl_hi_<mode>,
	vec_widen_<US>shiftl_hi_<mode>, neon_vec_<US>shift_left_<mode>):
	Likewise.
	* config/arm/predicates.md (const_neon_scalar_shift_amount_operand):
	New.
	* config/arm/iterators.md (V_innermode): New.
	* tree-vect-slp.c (vect_build_slp_tree): Require same shift operand
	for widening shift.

From-SVN: r180128

2011-10-18  Richard Guenther  <rguenther@suse.de>

	* tree-ssa-alias.h (struct pt_solution): Remove
	vars_contains_restrict member.
	(pt_solutions_same_restrict_base): Remove.
	(pt_solution_set): Adjust.
	* tree-ssa-alias.c (ptr_deref_may_alias_decl_p): Remove
	vars_contains_restrict handling.
	(dump_points_to_solution): Likewise.
	(ptr_derefs_may_alias_p): Do not call pt_solutions_same_restrict_base.
	* tree-ssa-structalias.c (struct variable_info): Remove is_restrict_var
	field.
	(new_var_info): Do not initialize it.
	(ipa_escaped_pt): Adjust.
	(make_constraint_from_restrict): Make the tag global.
	(make_constraint_from_global_restrict): New function.
	(make_constraint_from_heapvar): Remove.
	(create_variable_info_for): Do not make restrict vars point
	to NONLOCAL.
	(intra_create_variable_infos): Likewise.
	(find_what_var_points_to): Remove vars_contains_restrict handling.
	(pt_solution_set): Adjust.
	(pt_solution_ior_into): Likewise.
	(pt_solutions_same_restrict_base): Remove.
	(compute_points_to_sets): Do not test is_restrict_var.
	* cfgexpand.c (update_alias_info_with_stack_vars): Adjust.
	* gimple-pretty-print.c (pp_points_to_solution): Likewise.

	* gcc.dg/torture/restrict-1.c: New testcase.

From-SVN: r180127

2011-10-18  Tom de Vries  <tom@codesourcery.com>

	PR tree-optimization/50672
	* tree-ssa-dce.c (mark_virtual_operand_for_renaming): New function,
	factored out of ...
	(mark_virtual_phi_result_for_renaming): Use
	mark_virtual_operand_for_renaming.
	* tree-flow.h (mark_virtual_operand_for_renaming): Declare.
	* tree-ssa-tail-merge.c (release_last_vdef): New function.
	(purge_bbs): Add update_vops parameter.  Call release_last_vdef for each
	deleted basic block.
	(tail_merge_optimize): Add argument to call to purge_bbs.

From-SVN: r180126

2011-10-18  Richard Guenther  <rguenther@suse.de>

	PR middle-end/50716
	* expr.c (get_object_or_type_alignment): New function.
	(expand_assignment): Use it.
	(expand_expr_real_1): Likewise.

From-SVN: r180125

libcpp/

	* include/line-map.h (struct linemap_stats): Change the type of
	the members from size_t to long.
	* macro.c (macro_arg_token_iter_init): Unconditionally initialize
	iter->location_ptr.

gcc/c-family/

	* c-lex.c (fe_file_change): Use LINEMAP_SYSP when
	!NO_IMPLICIT_EXTERN_C.

gcc/
	* input.c (dump_line_table_statistics): Use long, not size_t.

From-SVN: r180124