From-SVN: r236238

From-SVN: r236237

If the compiled program does a shift by a negative amount, combine will
happily work with that, but it shouldn't then do an undefined operation
in GCC itself.  This patch fixes the first case mentioned in the bug
report (I haven't been able to reproduce the second case, on trunk at
least).


	PR rtl-optimization/67483
	* combine.c (make_compound_operation): Don't call extract_left_shift
	with negative shift amounts.

From-SVN: r236232

The resolution of C11 DR#423, apart from doing things with the types
of expressions cast to qualified types which are only in standard
terms observable with _Generic and which agree with how GCC has
implemented _Generic all along, also specifies that qualifiers are
discarded from function return types: "derived-declarator-type-list
function returning T" becomes "derived-declarator-type-list function
returning the unqualified version of T" in the rules giving types for
function declarators.  This means that declarations of a function with
both qualified and unqualified return types are now compatible,
similar to how different declarations can vary in whether a function
argument is declared with a qualifier or unqualified type.

This patch implements this resolution.  Since the motivation for the
change was _Generic, the resolution is restricted to C11 mode; there's
no reason to consider there to be a defect in this regard in older
standard versions.  Some less-obvious issues are handled as follows:

* As usual, and as with function arguments, _Atomic is not considered
  a qualifier for this purpose; that is, function declarations must
  agree regarding whether the return type is atomic.

* By 6.9.1#2, a function definition cannot return qualified void.  But
  with this change, specifying "const void" in the declaration
  produces the type "function returning void", which is perfectly
  valid, so "const void f (void) {}" is no longer an error.

* The application to restrict is less clear.  The way I am
  interpreting it in this patch is that "unqualified version of T" is
  not valid if T is not valid, as in the case where T is a
  restrict-qualified version of a type that cannot be restrict
  qualified (non-pointer, or pointer-to-function).  But it's possible
  to argue the other way from the wording.

Bootstrapped with no regressions on x86_64-pc-linux-gnu.

gcc/c:
	* c-decl.c (grokdeclarator): For C11, discard qualifiers on
	function return type.

gcc/testsuite:
	* gcc.dg/qual-return-5.c, gcc.dg/qual-return-6.c: New tests.
	* gcc.dg/call-diag-2.c, gcc.dg/qual-return-2.c ,
	gcc.dg/qual-return-3.c, gcc.dg/qual-return-4.c: Use -std=gnu99.

From-SVN: r236231

Add new test.

From-SVN: r236225

    
    Implements the discovery phase according the SCC algorithm used in
    gc/esc.go.  Traverse all functions to find components that are either
    trivial or recursive.  The discovered function groups will be analyzed
    from the bottom-up to allow for an inter-procedural analysis.
    
    Reviewed-on: https://go-review.googlesource.com/18221

From-SVN: r236224

Mark most virtual functions in gcc/jit as being FINAL OVERRIDE.
gcc::jit::recording::lvalue::access_as_rvalue is the sole OVERRIDE
that isn't a FINAL.

gcc/jit/ChangeLog:
	* jit-playback.h: Within namespace gcc:jit::playback...
	(compile_to_memory::postprocess): Mark with FINAL OVERRIDE.
	(compile_to_file::postprocess): Likewise.
	(function::finalizer): Likewise.
	(block::finalizer): Likewise.
	(source_file::finalizer): Likewise.
	(source_line::finalizer): Likewise.
	* jit-recording.c (gcc::jit::rvalue_usage_validator):: Likewise.
	* jit-recording.h: Within namespace gcc::jit::recording...
	(string::replay_into): Mark with FINAL OVERRIDE.
	(string::make_debug_string): Likewise.
	(string::write_reproducer): Likewise.
	(location::replay_into): Likewise.
	(location::dyn_cast_location): Likewise.
	(location::make_debug_string): Likewise.
	(location::write_reproducer): Likewise.
	(memento_of_get_type::dereference): Likewise.
	(memento_of_get_type::accepts_writes_from): Likewise.
	(memento_of_get_type::is_int): Likewise.
	(memento_of_get_type::is_float): Likewise.
	(memento_of_get_type::is_bool): Likewise.
	(memento_of_get_type::is_pointer): Likewise.
	(memento_of_get_type::is_array): Likewise.
	(memento_of_get_type::is_void): Likewise.
	(memento_of_get_type::replay_into): Likewise.
	(memento_of_get_type::make_debug_string): Likewise.
	(memento_of_get_type::write_reproducer): Likewise.
	(memento_of_get_pointer::dereference): Likewise.
	(memento_of_get_pointer::accepts_writes_from): Likewise.
	(memento_of_get_pointer::replay_into): Likewise.
	(memento_of_get_pointer::is_int): Likewise.
	(memento_of_get_pointer::is_float): Likewise.
	(memento_of_get_pointer::is_bool): Likewise.
	(memento_of_get_pointer::is_pointer): Likewise.
	(memento_of_get_pointer::is_array): Likewise.
	(memento_of_get_pointer::make_debug_string): Likewise.
	(memento_of_get_pointer::write_reproducer): Likewise.
	(memento_of_get_const::dereference): Likewise.
	(memento_of_get_const::accepts_writes_from): Likewise.
	(memento_of_get_const::unqualified): Likewise.
	(memento_of_get_const::is_int): Likewise.
	(memento_of_get_const::is_float): Likewise.
	(memento_of_get_const::is_bool): Likewise.
	(memento_of_get_const::is_pointer): Likewise.
	(memento_of_get_const::is_array): Likewise.
	(memento_of_get_const::void replay_into): Likewise;
	(memento_of_get_const::make_debug_string): Likewise.
	(memento_of_get_const::write_reproducer): Likewise.
	(memento_of_get_volatile::dereference): Likewise.
	(memento_of_get_volatile::unqualified): Likewise.
	(memento_of_get_volatile::is_int): Likewise.
	(memento_of_get_volatile::is_float): Likewise.
	(memento_of_get_volatile::is_bool): Likewise.
	(memento_of_get_volatile::is_pointer): Likewise.
	(memento_of_get_volatile::is_array): Likewise.
	(memento_of_get_volatile::replay_into): Likewise;
	(memento_of_get_volatile::make_debug_string): Likewise.
	(memento_of_get_volatile::write_reproducer): Likewise.
	(array_type::dereference): Likewise.
	(array_type::is_int): Likewise.
	(array_type::is_float): Likewise.
	(array_type::is_bool): Likewise.
	(array_type::is_pointer): Likewise.
	(array_type::is_array): Likewise.
	(array_type::replay_into): Likewise;
	(array_type::make_debug_string): Likewise.
	(array_type::write_reproducer): Likewise.
	(function_type::dereference): Likewise.
	(function_type::function_dyn_cast_function_type): Likewise.
	(function_type::function_as_a_function_type): Likewise.
	(function_type::is_int): Likewise.
	(function_type::is_float): Likewise.
	(function_type::is_bool): Likewise.
	(function_type::is_pointer): Likewise.
	(function_type::is_array): Likewise.
	(function_type::replay_into): Likewise;
	(function_type::make_debug_string): Likewise.
	(function_type::write_reproducer): Likewise.
	(field::replay_into): Likewise;
	(field::write_to_dump): Likewise.
	(field::make_debug_string): Likewise.
	(field::write_reproducer): Likewise.
	(compound_type::dereference): Likewise.
	(compound_type::is_int): Likewise.
	(compound_type::is_float): Likewise.
	(compound_type::is_bool): Likewise.
	(compound_type::is_pointer): Likewise.
	(compound_type::is_array): Likewise.
	(compound_type::has_known_size): Likewise.
	(struct_::dyn_cast_struct): Likewise.
	(struct_::replay_into): Likewise.
	(struct_::access_as_type): Likewise.
	(struct_::make_debug_string): Likewise.
	(struct_::write_reproducer): Likewise.
	(fields::replay_into): Likewise.
	(fields::write_to_dump): Likewise.
	(fields::make_debug_string): Likewise.
	(fields::write_reproducer): Likewise.
	(union_::replay_into): Likewise.
	(union_::make_debug_string): Likewise.
	(union_::write_reproducer): Likewise.
	(lvalue::access_as_rvalue): Mark with OVERRIDE.
	(param::replay_into): Mark with FINAL OVERRIDE.
	(param::visit_children): Likewise.
	(param::dyn_cast_param): Likewise.
	(param::access_as_rvalue): Likewise.
	(param::access_as_lvalue): Likewise.
	(param::make_debug_string): Likewise.
	(param::write_reproducer): Likewise.
	(param::get_precedence): Likewise.
	(function::replay_into): Likewise.
	(function::write_to_dump): Likewise.
	(function::make_debug_string): Likewise.
	(function::write_reproducer): Likewise.
	(block::write_to_dump): Likewise.
	(block::make_debug_string): Likewise.
	(block::write_reproducer): Likewise.
	(block::replay_into): Likewise.
	(global::replay_into): Likewise;
	(global::visit_children): Likewise.
	(global::write_to_dump): Likewise.
	(global::make_debug_string): Likewise.
	(global::write_reproducer): Likewise.
	(global::get_precedence): Likewise.
	(memento_of_new_rvalue_from_const::replay_into): Likewise.
	(memento_of_new_rvalue_from_const::visit_children): Likewise.
	(memento_of_new_rvalue_from_const::is_constant): Likewise.
	(memento_of_new_rvalue_from_const::get_wide_int): Likewise.
	(memento_of_new_rvalue_from_const::make_debug_string): Likewise.
	(memento_of_new_rvalue_from_const::write_reproducer): Likewise.
	(memento_of_new_rvalue_from_const::get_precedence): Likewise.
	(memento_of_new_string_literal::replay_into): Likewise.
	(memento_of_new_string_literal::visit_children): Likewise.
	(memento_of_new_string_literal::make_debug_string): Likewise.
	(memento_of_new_string_literal::write_reproducer): Likewise.
	(memento_of_new_string_literal::get_precedence): Likewise.
	(unary_op::replay_into): Likewise.
	(unary_op::visit_children): Likewise.
	(unary_op::make_debug_string): Likewise.
	(unary_op::write_reproducer): Likewise.
	(unary_op::get_precedence): Likewise.
	(binary_op::replay_into): Likewise.
	(binary_op::visit_children): Likewise.
	(binary_op::make_debug_string): Likewise.
	(binary_op::write_reproducer): Likewise.
	(binary_op::get_precedence): Likewise.
	(comparison::replay_into): Likewise.
	(comparison::visit_children): Likewise.
	(comparison::make_debug_string): Likewise.
	(comparison::write_reproducer): Likewise.
	(comparison::get_precedence): Likewise.
	(cast::replay_into): Likewise.
	(cast::visit_children): Likewise.
	(cast::make_debug_string): Likewise.
	(cast::write_reproducer): Likewise.
	(cast::get_precedence): Likewise.
	(call::replay_into): Likewise.
	(call::visit_children): Likewise.
	(call::make_debug_string): Likewise.
	(call::write_reproducer): Likewise.
	(call::get_precedence): Likewise.
	(call_through_ptr::replay_into): Likewise.
	(call_through_ptr::visit_children): Likewise.
	(call_through_ptr::make_debug_string): Likewise.
	(call_through_ptr::write_reproducer): Likewise.
	(call_through_ptr::get_precedence): Likewise.
	(array_access::replay_into): Likewise.
	(array_access::visit_children): Likewise.
	(array_access::make_debug_string): Likewise.
	(array_access::write_reproducer): Likewise.
	(array_access::get_precedence): Likewise.
	(access_field_of_lvalue::replay_into): Likewise.
	(access_field_of_lvalue::visit_children): Likewise.
	(access_field_of_lvalue::make_debug_string): Likewise.
	(access_field_of_lvalue::write_reproducer): Likewise.
	(access_field_of_lvalue::get_precedence): Likewise.
	(access_field_rvalue::replay_into): Likewise.
	(access_field_rvalue::visit_children): Likewise.
	(access_field_rvalue::make_debug_string): Likewise.
	(access_field_rvalue::write_reproducer): Likewise.
	(access_field_rvalue::get_precedence): Likewise.
	(dereference_field_rvalue::replay_into): Likewise.
	(dereference_field_rvalue::visit_children): Likewise.
	(dereference_field_rvalue::make_debug_string): Likewise.
	(dereference_field_rvalue::write_reproducer): Likewise.
	(dereference_field_rvalue::get_precedence): Likewise.
	(dereference_rvalue::replay_into): Likewise.
	(dereference_rvalue::visit_children): Likewise.
	(dereference_rvalue::make_debug_string): Likewise.
	(dereference_rvalue::write_reproducer): Likewise.
	(dereference_rvalue::get_precedence): Likewise.
	(get_address_of_lvalue::replay_into): Likewise.
	(get_address_of_lvalue::visit_children): Likewise.
	(get_address_of_lvalue::make_debug_string): Likewise.
	(get_address_of_lvalue::write_reproducer): Likewise.
	(get_address_of_lvalue::get_precedence): Likewise.
	(local::replay_into): Likewise.
	(local::visit_children): Likewise.
	(local::write_to_dump): Likewise.
	(local::make_debug_string): Likewise.
	(local::write_reproducer): Likewise.
	(local::get_precedence): Likewise.
	(statement::write_to_dump): Likewise.
	(eval::replay_into): Likewise.
	(eval::make_debug_string): Likewise.
	(eval::write_reproducer): Likewise.
	(assignment::replay_into): Likewise.
	(assignment::make_debug_string): Likewise.
	(assignment::write_reproducer): Likewise.
	(assignment_op::replay_into): Likewise.
	(assignment_op::make_debug_string): Likewise.
	(assignment_op::write_reproducer): Likewise.
	(comment::replay_into): Likewise.
	(comment::make_debug_string): Likewise.
	(comment::write_reproducer): Likewise.
	(conditional::replay_into): Likewise.
	(conditional::get_successor_blocks): Likewise.
	(conditional::make_debug_string): Likewise.
	(conditional::write_reproducer): Likewise.
	(jump::replay_into): Likewise.
	(jump::get_successor_blocks): Likewise.
	(jump::make_debug_string): Likewise.
	(jump::write_reproducer): Likewise.
	(return_::replay_into): Likewise.
	(return_::get_successor_blocks): Likewise.
	(return_::make_debug_string): Likewise.
	(return_::write_reproducer): Likewise.
	(case_::replay_into): Likewise.
	(case_::write_reproducer): Likewise.
	(case_::make_debug_string): Likewise.
	(switch_::replay_into): Likewise.
	(switch_::get_successor_blocks): Likewise.
	(switch_::make_debug_string): Likewise.
	(switch_::write_reproducer): Likewise.

From-SVN: r236223

	PR bootstrap/71071
	* fold-const.c (fold_checksum_tree): Allow modification
	of TYPE_ALIAS_SET during folding.

	* gcc.dg/pr71071.c: New test.

From-SVN: r236222

	PR c++/10200
	PR c++/69753
	* pt.c (tsubst_decl): Use uses_template_parms.
	(instantiate_template_1): Handle non-dependent calls in templates.
	(value_dependent_expression_p): Handle BASELINK, FUNCTION_DECL.
	(type_dependent_expression_p): Only consider innermost template	args.
	(dependent_template_arg_p): Check enclosing class of a template here.
	(dependent_template_p): Not here.
	(type_dependent_object_expression_p): New.
	* typeck.c (finish_class_member_access_expr): Use it.
	* parser.c (cp_parser_postfix_expression): Use it.
	(cp_parser_postfix_dot_deref_expression): Use it.  Use comptypes
	to detect the current instantiation.
	(cp_parser_lookup_name): Really implement DR 141.
	* search.c (lookup_field_r): Prefer a dependent using-declaration.
	(any_dependent_bases_p): Split out from...
	* name-lookup.c (do_class_using_decl): ...here.
	* call.c (build_new_method_call_1): Use it.
	* semantics.c (finish_call_expr): 'this' doesn't make a call dependent.
	* tree.c (non_static_member_function_p): Remove.
	* typeck2.c (build_x_arrow): Use dependent_scope_p.

From-SVN: r236221

	* parser.c (cp_parser_postfix_dot_deref_expression): Use
	complete_type_or_else for unknown_type_node, too.

From-SVN: r236220

	* gcc.dg/vect/tree-vect.h (check_vect): Handle AVX2,
	remove XOP handling.

From-SVN: r236216

	* config/i386/i386.c (ix86_compute_frame_layout, ix86_expand_prologue,
	ix86_expand_split_stack_prologue): Use HOST_WIDE_INT_C macro.
	(ix86_split_to_parts): Likewise.  Fix up formatting.

From-SVN: r236215

	* tree-ssa-loop-ivopts.c (create_new_ivs): Cast to
	unsigned HOST_WIDE_INT with HOST_WIDE_INT_PRINT_UNSIGNED in
	printf format.

From-SVN: r236214

	* config/nvptx/nvptx.c (nvptx_mangle_decl_assembler_name): New.
	(nvptx_name_replacement): Delete.
	(write_fn_proto, write_fn_proto_from_insn,
	nvptx_output_call_insn): Remove nvptx_name_replacement call.
	(TARGET_MANGLE_DECL_ASSEMBLER_NAME): Override.
	* langhooks.c (add_builtin_funcction_common): Call
	targetm.mangle_decl_assembler_name.

From-SVN: r236212

	PR libstdc++/71073
	* include/debug/bitset: Add #pragma GCC system_header.
	* include/debug/deque: Likewise.
	* include/debug/list: Likewise.
	* include/debug/map: Likewise.
	* include/debug/set: Likewise.
	* include/debug/string: Likewise.
	* include/debug/unordered_map: Likewise.
	* include/debug/unordered_set: Likewise.
	* include/debug/vector: Likewise.
	* include/debug/functions.h: Adjust whitespace.

From-SVN: r236211

	gcc/
	* config/nvptx/nvptx.c (write_fn_proto): Handle
	BUILT_IN_ATOMIC_COMPARE_EXCHANGE_n oddity.

	gcc/testsuite/
	* gcc.dg/atomic-noinline-aux.c: Include stddef.h. Fix
	__atomic_is_lock_free declaration.

From-SVN: r236209

	* tree-ssa-loop-ivopts.c (create_new_ivs): Use HOST_WIDE_INT_PRINT_DEC
	and PRIu64 in printf format.

From-SVN: r236208

	* tree-ssa-loop-ivanon.c (try_unroll_loop_completely): Typo fix in
	comment.

From-SVN: r236206

	* tree-ssa-loop-ivcanon.c (try_unroll_loop_completely):
	Change --param max-completely-peeled-times to
	--param max-completely-peel-times in dump file printing.

From-SVN: r236205

2016-05-13  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/42587
	* tree-ssa-math-opts.c (perform_symbolic_merge): Handle BIT_FIELD_REF.
	(find_bswap_or_nop_1): Likewise.
	(bswap_replace): Likewise.

	* gcc.dg/optimize-bswapsi-4.c: New testcase.

From-SVN: r236204

	* tree-vect-patterns.c (vect_recog_mask_conversion_pattern):
	Initialize a variable with default value.

From-SVN: r236203

	* doc/invoke.texi: Enhance explanation of error recovery
	of sanitizers.

From-SVN: r236202

	* tree-ssa-loop-ivopts.c (avg_loop_niter): Fix coding style.
	(struct cost_pair): Change inv_expr_id (int) to inv_expr
	(iv_inv_expr_ent *).
	(struct iv_inv_expr_ent): Comment struct fields.
	(sort_iv_inv_expr_ent): New function.
	(struct ivopts_data): Rename inv_expr_id to max_inv_expr_id.
	(struct iv_ca): Replace used_inv_expr and num_used_inv_expr with
	a hash_map between iv_inv_expr_ent and number of usages.
	(niter_for_exit): Fix coding style.
	(tree_ssa_iv_optimize_init): Use renamed variable.
	(determine_base_object): Fix coding style.
	(alloc_iv): Likewise.
	(find_interesting_uses_outside): Likewise.
	(add_candidate_1): Likewise.
	(add_standard_iv_candidates): Likewise.
	(set_group_iv_cost): Replace inv_expr_id with inv_expr.
	(prepare_decl_rtl): Fix coding style.
	(get_address_cost): Likewise.
	(get_shiftadd_cost): Likewise.
	(force_expr_to_var_cost): Likewise.
	(compare_aff_trees): Likewise.
	(get_expr_id): Restructure the function.
	(get_loop_invariant_expr_id): Renamed to
	get_loop_invariant_expr.
	(get_computation_cost_at): Replace usage of inv_expr_id with
	inv_expr.
	(get_computation_cost): Likewise.
	(determine_group_iv_cost_generic): Likewise.
	(determine_group_iv_cost_address): Likewise.
	(iv_period): Fix coding style.
	(iv_elimination_compare_lt): Likewise.
	(may_eliminate_iv): Likewise.
	(determine_group_iv_cost_cond):  Replace usage of inv_expr_id with
	inv_expr.
	(determine_group_iv_costs): Dump invariant expressions.
	(iv_ca_recount_cost): Use the newly added hash_map.
	(iv_ca_set_remove_invariants): Fix coding style.
	(iv_ca_set_add_invariants): Fix coding style.
	(iv_ca_set_no_cp): Utilize the newly added hash_map for used
	invariants.
	(iv_ca_set_cp): Likewise.
	(iv_ca_new): Initialize the newly added hash_map and remove
	initialization of fields.
	(iv_ca_free): Delete the hash_map.
	(iv_ca_dump): Dump invariant expressions.
	(iv_ca_extend): Fix coding style.
	(try_add_cand_for): Likewise.
	(create_new_ivs): Dump information about # of avg iterations and
	# of used invariant expressions.
	(rewrite_use_compare): Fix coding style.
	(free_loop_data): Set default value for max_inv_expr_id.
	* g++.dg/tree-ssa/ivopts-3.C: Change test-case to follow
	the new format of dump output.

From-SVN: r236200

gcc/

	* cse.c (rest_of_handle_cse): Use cleanup_cfg
	returned value cse_cfg_altered computation.
	(rest_of_handle_cse2): Likewise.
	(rest_of_handle_cse_after_global_opts): Likewise.

gcc/testsuite/

	* gcc.dg/pr71084.c: New test.

From-SVN: r236199

This partially fixes PR target/53440 atleast in ARM and
Thumb2 state. I haven't yet managed to get my head around
rewriting the Thumb1 support yet.

Tested on armhf with a bootstrap and regression test
with no regressions.

Queued for stage1 now as it isn't technically a regression.

regards
Ramana


2016-05-13  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

        PR target/53440
        * config/arm/arm.c (arm32_output_mi_thunk): New.
        (arm_output_mi_thunk): Rename to arm_thumb1_mi_thunk. Rework
        to split Thumb1 vs TARGET_32BIT functionality.
        (arm_thumb1_mi_thunk): New.


        * g++.dg/inherit/thunk1.C: Support arm / aarch64.

From-SVN: r236198

The reason this caught my eye on aarch64 is because
the return value register (x0) is not identical to the register in which
the hidden parameter for AArch64 is set (x8). Thus setting this to true
seems to be quite reasonable and shaves off 100 odd mov x0, x8's from
cc1 in a bootstrap build.

I don't expect this to make a huge impact on performance but as they
say every little counts.  The AAPCS64 is quite explicit about not
requiring that the contents of x8 be kept live.

Bootstrapped and regression tested on aarch64.

Ok to apply ?

Ramana

gcc/
* config/aarch64/aarch64.c (TARGET_OMIT_STRUCT_RETURN_REG): Set to
true.

gcc/testsuite

* gcc.target/aarch64/struct_return.c: New test.

From-SVN: r236197

	PR target/71080
	* config/i386/i386.c (ix86_in_large_data_p): Guard against NULL exp.

From-SVN: r236196

	* builtins.c (expand_builtin_memcmp): Do not emit the call here.
	(expand_builtin_trap): Emit a regular call.
	(set_builtin_user_assembler_name): Remove obsolete cases.
	* dse.c (scan_insn): Adjust.
	* except.c: Include calls.h.
	(sjlj_emit_function_enter): If DONT_USE_BUILTIN_SETJMP is defined,
	emit a regular call to setjmp.
	* expr.c (emit_block_move_hints): Call emit_block_copy_via_libcall.
	(block_move_libcall_safe_for_call_parm): Use memcpy builtin.
	(emit_block_move_via_libcall): Delete.
	(block_move_fn): Delete.
	(init_block_move_fn): Likewise.
	(emit_block_move_libcall_fn): Likewise.
	(emit_block_op_via_libcall): New function.
	(set_storage_via_libcall): Tidy up and use memset builtin.
	(block_clear_fn): Delete.
	(init_block_clear_fn): Likewise.
	(clear_storage_libcall_fn): Likewise.
	(expand_assignment): Call emit_block_move_via_libcall.
	Do not include gt-expr.h.
	* expr.h (emit_block_op_via_libcall): Declare.
	(emit_block_copy_via_libcall): New inline function.
	(emit_block_move_via_libcall): Likewise.
	(emit_block_comp_via_libcall): Likewise.
	(block_clear_fn): Delete.
	(init_block_move_fn): Likewise.
	(init_block_clear_fn): Likewise.
	(emit_block_move_via_libcall): Likewise.
	(set_storage_via_libcall): Add default parameter value.
	* libfuncs.h (enum libfunc_index): Remove obsolete values.
	(abort_libfunc): Delete.
	(memcpy_libfunc): Likewise.
	(memmove_libfunc): Likewise.
	(memcmp_libfunc): Likewise.
	(memset_libfunc): Likewise.
	(setbits_libfunc): Likewise.
	(setjmp_libfunc): Likewise.
	(longjmp_libfunc): Likewise.
	(profile_function_entry_libfunc): Likewise.
	(profile_function_exit_libfunc): Likewise.
	(gcov_flush_libfunc): Likewise.
	* optabs-libfuncs.c (build_libfunc_function): Set DECL_ARTIFICIAL
	and DECL_VISIBILITY on the declaration.
	(init_optabs): Do not initialize obsolete libfuncs.
	* optabs.c (prepare_cmp_insn): Call emit_block_comp_via_libcall.
	* tree-core.h (ECF_RET1): Define.
	(ECF_TM_PURE): Adjust.
	(ECF_TM_BUILTIN): Likewise.
	* tree.c (set_call_expr_flags): Deal with ECF_RET1.
	(build_common_builtin_nodes): Initialize abort builtin.
	Add ECF_RET1 on memcpy, memmove and memset builtins.
	Pass final flags for alloca and alloca_with_align builtins.
	* config/alpha/alpha.c (alpha_init_libfuncs): Do not initialize
	obsolete builtins.
	* config/ia64/ia64.c (ia64_vms_init_libfuncs): Likewise.
	* config/i386/i386.c (ix86_expand_set_or_movmem): Adjust call to
	set_storage_via_libcall and call emit_block_copy_via_libcall.

From-SVN: r236195

From-SVN: r236189

From-SVN: r236183

i386.md (*call_got_x32): Change operand 0 to DImode before it is passed to ix86_output_call_operand.

	* config/i386/i386.md (*call_got_x32): Change operand 0 to
	DImode before it is passed to ix86_output_call_operand.
	(*call_value_got_x32): Ditto for operand 1.

From-SVN: r236182

2016-05-12  Jiong Wang  <jiong.wang@arm.com>

gcc/
  PR rtl-optimization/70904
  * lra-constraint.c (process_addr_reg): Relax the restriction on
  subreg reload for wide mode.

From-SVN: r236181

	PR c/70756
	* c-common.c (pointer_int_sum): Call size_in_bytes_loc instead of
	size_in_bytes and pass LOC to it.

	* c-decl.c (build_compound_literal): Pass LOC down to
	c_incomplete_type_error.
	* c-tree.h (require_complete_type): Adjust declaration.
	(c_incomplete_type_error): Likewise.
	* c-typeck.c (require_complete_type): Add location parameter, pass it
	down to c_incomplete_type_error.
	(c_incomplete_type_error): Add location parameter, pass it down to
	error_at.
	(build_component_ref): Pass location down to c_incomplete_type_error.
	(default_conversion): Pass location down to require_complete_type.
	(build_array_ref): Likewise.
	(build_function_call_vec): Likewise.
	(convert_arguments): Likewise.
	(build_unary_op): Likewise.
	(build_c_cast): Likewise.
	(build_modify_expr): Likewise.
	(convert_for_assignment): Likewise.
	(c_finish_omp_clauses): Likewise.

	* call.c (build_new_op_1): Pass LOC to cp_build_modify_expr.
	* cp-tree.h (cp_build_modify_expr): Update declaration.
	(cxx_incomplete_type_error, cxx_incomplete_type_diagnostic): New inline
	overloads.
	* cp-ubsan.c (cp_ubsan_dfs_initialize_vtbl_ptrs): Pass INPUT_LOCATION to
	cp_build_modify_expr.
	* decl2.c (set_guard): Likewise.
	(handle_tls_init): Likewise.
	* init.c (perform_member_init): Likewise.
	(expand_virtual_init): Likewise.
	(build_new_1): Likewise.
	(build_vec_delete_1): Likewise.
	(get_temp_regvar): Likewise.
	(build_vec_init): Likewise.
	* method.c (do_build_copy_assign): Likewise.
	(assignable_expr): Likewise.
	* semantics.c (finish_omp_for): Likewise.
	* typeck.c (cp_build_binary_op): Pass LOCATION to pointer_diff and
	cp_pointer_int_sum.
	(cp_pointer_int_sum): Add location parameter.  Pass it down to
	pointer_int_sum.
	(pointer_diff): Add location parameter.  Use it.
	(build_modify_expr): Pass location down to cp_build_modify_expr.
	(cp_build_modify_expr): Add location parameter.  Use it.
	(build_x_modify_expr): Pass location down to cp_build_modify_expr.
	* typeck2.c (cxx_incomplete_type_diagnostic,
	cxx_incomplete_type_error): Add location parameter.

	* langhooks-def.h (lhd_incomplete_type_error): Adjust declaration.
	* langhooks.c (lhd_incomplete_type_error): Add location parameter.
	* langhooks.h (incomplete_type_error): Likewise.
	* tree.c (size_in_bytes_loc): Renamed from size_in_bytes.  Add location
	parameter, pass it down to incomplete_type_error.
	* tree.h (size_in_bytes): New inline overload.
	(size_in_bytes_loc): Renamed from size_in_bytes.

	* c-c++-common/pr70756-2.c: New test.
	* c-c++-common/pr70756.c: New test.

From-SVN: r236180

	PR libstdc++/71081
	* testsuite/experimental/memory_resource/1.cc: Require atomics.

From-SVN: r236177

re PR tree-optimization/71059 (gcc ICE at -O3 on valid code on x86_64-linux-gnu in "vn_nary_op_insert_into")

2016-05-12  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/71059
	* tree-ssa-pre.c (phi_translate_1): Fully fold translated
	nary before looking up or entering the expression into the VN
	hashes.
	* tree-ssa-sccvn.c (vn_nary_build_or_lookup): Fix comment typo.
	Make sure to re-use NARYs without result as inserted by
	phi-translation.

	* gcc.dg/torture/pr71059.c: New testcase.

From-SVN: r236175

2016-05-12  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/71062
	* tree-ssa-alias.h (struct pt_solution): Add vars_contains_restrict
	field.
	* tree-ssa-structalias.c (set_uids_in_ptset): Set vars_contains_restrict
	if the var is a restrict tag.
	* tree-ssa-alias.c (ptrs_compare_unequal): If vars_contains_restrict
	do not disambiguate pointers against it.
	(dump_points_to_solution): Re-structure and adjust for new
	vars_contains_restrict flag.
	* gimple-pretty-print.c (pp_points_to_solution): Likewise.

	* gcc.dg/torture/pr71062.c: New testcase.

From-SVN: r236174

	* doc/invoke.texi: Explain connection between -fsanitize-recover=address
	and ASAN_OPTIONS="halt_on_error=1".

From-SVN: r236172

re PR tree-optimization/71006 (ICE: verify_gimple failed (error: type mismatch in conditional expression) w/ -O1 -ftree-loop-vectorize)

gcc/

	PR tree-optimization/71006
	* tree-vect-loop.c (vect_determine_vectorization_factor): Don't
	consider COND_EXPR as a mask producer.

gcc/testsuite/

	PR tree-optimization/71006
	* gcc.dg/pr71006.c: New test.

From-SVN: r236171

	PR driver/71063
	* opts.c (common_handle_option): Detect missing argument for --help^.

	* gcc.dg/opts-7.c: New test.

From-SVN: r236170

	PR target/70830
	* config/arm/arm.c (arm_output_multireg_pop): Avoid POP instruction
	when popping the PC and within an interrupt handler routine.
	Add missing tab to output of "ldmfd".
	(output_return_instruction): Output LDMFD with SP update rather
	than POP when returning from interrupt handler.

	* gcc.target/arm/interrupt-1.c: Change dg-compile to dg-assemble.
	Add -save-temps to dg-options.
	Scan for ldmfd rather than pop instruction.
	* gcc.target/arm/interrupt-2.c: Likewise.
	* gcc.target/arm/pr70830.c: New test.

From-SVN: r236169