The check for dominance while extending the scop assumed that
multiple successors meant a loop which is not true in case of
conditionals around the loop.

Improved pretty printers for better debugging.

	PR tree-optimization/68693
        * graphite-scop-detection.c (dot_all_sese): New
        (dot_all_scops_1): Renamed to dot_all_sese.
        (dot_all_scops): Removed.
        (dot_sese): New.
        (dot_cfg): New.
        (scop_detection::get_nearest_dom_with_single_entry): Check that preds are from different loop levels.
        (scop_detection::get_nearest_pdom_with_single_exit): Check that succs are from different loop levels.
        (scop_detection::print_sese): Inlined.
        (scop_detection::print_edge): New.
        (scop_detection::merge_sese): Added dumps.
        * graphite.h: Add declarations.

gcc/testsuite/ChangeLog:

        * gfortran.dg/graphite/pr68693.f90: New test.

Co-Authored-By: Sebastian Pop <s.pop@samsung.com>

From-SVN: r231309

gcc/

2015-12-04  James Greenhalgh  <james.greenhalgh@arm.com>

	* config/aarch64/aarch64.md (add<mode>3_pluslong): Add register
	constraints.

gcc/testsuite/

2015-12-04  James Greenhalgh  <james.greenhalgh@arm.com>

	* gcc.c-torture/compile/20151204.c: New.

From-SVN: r231304

From-SVN: r231303

2015-12-04  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/68349
	* lra-eliminations.c (move_plus_up): New function.
	(lra_eliminate_regs_1): Use the function.

2015-12-04  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/68349
	* gcc.target/i386/pr68349.c: New test.

From-SVN: r231300

	gcc/
	* config/nvptx/nvptx.c (nvptx_assemble_decl_begin): New,
	replacing ...
	(init_output_initializer): ... this.
	(nvptx_output_aligned_decl, nvptx_asm_declare_constant_name,
	nvptx_declare_object_name, nvptx_assemble_undefined_decl): Use
	nvptx_assemble_decl_begin.

	gcc/testsuite/
	* gcc.target/nvptx/ary-init.c: New.

From-SVN: r231298

	* sancov.c: New file.
	* Makefile.in (OBJS): Add sancov.o.
	* invoke.texi (-fsanitize-coverage=trace-pc): Describe.
	* passes.def (sancov_pass): Add.
	* tree-pass.h  (sancov_pass): Add.
	* common.opt (-fsanitize-coverage=trace-pc): Add.
	* sanitizer.def (BUILT_IN_SANITIZER_COV_TRACE_PC): Add.
	* builtins.def (DEF_SANITIZER_BUILTIN): Enable for
	flag_sanitize_coverage.

From-SVN: r231296

	PR middle-end/65958
	* config/arm/unspecs.md (unspec): Remove UNSPEC_PROBE_STACK_RANGE.
	(unspecv): Add VUNSPEC_PROBE_STACK_RANGE.
	* config/arm/arm.md (probe_stack_range): Adjust.
	* config/aarch64/aarch64.md (unspec): Remove UNSPEC_PROBE_STACK_RANGE.
	(unspecv): Add UNSPECV_PROBE_STACK_RANGE.
	(probe_stack_range_<PTR:mode>): Adjust.

From-SVN: r231295

	PR c++/68645
	* parser.c (cp_parser_direct_declarator)
	(cp_parser_late_return_type_opt): Put Cilk+ attributes on
	declarator->attributes, not std_attributes.

From-SVN: r231294

gcc/ChangeLog:
	* convert.c (convert_to_real_1): When converting from a
	REAL_TYPE, preserve the location of EXPR in the result.
	* tree.c (get_pure_location): Make non-static.
	(set_source_range): Return the resulting location_t.
	(make_location): New function.
	* tree.h (get_pure_location): New decl.
	(get_finish): New inline function.
	(set_source_range): Convert return type from void to location_t.
	(make_location): New decl.

gcc/cp/ChangeLog:
	* cp-tree.h (class cp_expr): New class.
	(finish_parenthesized_expr): Convert return type and param to
	cp_expr.
	(perform_koenig_lookup): Convert return type and param from tree
	to cp_expr.
	(finish_increment_expr): Likewise.
	(finish_unary_op_expr): Likewise.
	(finish_id_expression): Likewise for return type.
	(build_class_member_access_expr): Likewise for param.
	(finish_class_member_access_expr): Likewise.
	(build_x_unary_op): Likewise.
	(build_c_cast): New decl.
	(build_x_modify_expr): Convert return type from tree to cp_expr.
	* cvt.c (cp_convert_and_check): When warning about conversions,
	attempt to use the location of "expr" if available, otherwise
	falling back to the old behavior of using input_location.
	* name-lookup.c (lookup_arg_dependent_1): Convert return type from
	tree to cp_expr.
	(lookup_arg_dependent): Likewise; also for local "ret".
	* name-lookup.h (lookup_arg_dependent): Likewise for return type.
	* parser.c (cp_lexer_previous_token): Skip past purged tokens.
	(struct cp_parser_expression_stack_entry): Convert field "lhs" to
	cp_expr.
	(cp_parser_identifier): Likewise for return type.  Use cp_expr
	ctor to preserve the token's location.
	(cp_parser_string_literal): Likewise, building up a meaningful
	location for the case where a compound string literal is built by
	concatentation.
	(cp_parser_userdef_char_literal): Likewise for return type.
	(cp_parser_userdef_numeric_literal): Likewise.
	(cp_parser_statement_expr): Convert return type to cp_expr.
	Generate a suitable location for the expr and return it via the
	cp_expr ctor.
	(cp_parser_fold_expression): Convert return type to cp_expr.
	(cp_parser_primary_expression): Likewise, and for locals "expr",
	"lam", "id_expression", "decl".
	Use cp_expr ctor when parsing literals, to preserve the spelling
	location of the token.  Preserve the locations of parentheses.
	Preserve location when calling objc_lookup_ivar.
	Preserve the location for "this" tokens.  Generate suitable
	locations for "__builtin_va_arg" constructs and for
	Objective C 2.0 dot-syntax.  Set the location for the result of
	finish_id_expression.
	(cp_parser_primary_expression): Convert return type from tree to
	cp_expr.
	(cp_parser_id_expression): Likewise.
	(cp_parser_unqualified_id): Likewise.  Also for local "id".
	(cp_parser_postfix_expression): Likewise, also for local
	"postfix_expression".  Generate suitable locations for
	C++-style casts, "_Cilk_spawn" constructs.  Convert local
	"initializer" to cp_expr and use it to preserve the location of
	compound literals.  Capture the location of the closing
	parenthesis of a call site via
	cp_parser_parenthesized_expression_list, and use it to build
	a source range for a call.  Use cp_expr in ternary expression.
	(cp_parser_postfix_dot_deref_expression): Convert param from tree to
	cp_expr.  Generate and set a location.
	(cp_parser_parenthesized_expression_list): Add "close_paren_loc"
	out-param, and write back to it.
	(cp_parser_unary_expression): Convert return type from tree to
	cp_expr.  Also for locals "cast_expression" and "expression".
	Generate and use suitable locations for addresses of
	labels and for cast expressions.  Call cp_expr::set_location where
	necessary.  Preserve the locations of negated numeric literals.
	(cp_parser_new_expression): Generate meaningful locations/ranges.
	(cp_parser_cast_expression): Convert return type from tree to
	cp_expr; also for local "expr".  Use the paren location to generate a
	meaningful range for the expression.
	(cp_parser_binary_expression): Convert return type from tree to
	cp_expr; also for local "rhs".  Generate a meaningful location
	for the expression, and use it.  Replace call to
	protected_set_expr_location by converting a build2 to a build2_loc
	and using the location in the call to build_x_binary_op, adding a
	cp_expr::set_location to the latter case.
	(cp_parser_question_colon_clause): Convert param from tree to
	cp_expr; also for local "assignment_expr".  Set the spelling range
	of the expression.
	(cp_parser_assignment_expression): Likewise for return type and
	locals "expr" and "rhs".  Build a meaningful spelling range for
	the expression.  Remove saving of input_location in favor of a
	call to cp_expr::set_location.
	(cp_parser_expression): Convert return type and locals
	"expression" and "assignment_expression" to cp_expr.  Build a
	meaningful spelling range for assignment expressions.
	(cp_parser_constant_expression): Likewise for return type and
	local "expression".
	(cp_parser_builtin_offsetof): Convert return type and local "expr"
	to cp_expr.  Generate suitable locations.
	(cp_parser_lambda_expression): Convert return return type to
	cp_expr.
	(cp_parser_operator_function_id): Likewise.
	(cp_parser_operator): Likewise.  Generate a meaningful range,
	using cp_expr's ctor to return it.
	(cp_parser_template_id): When converting a token to
	CPP_TEMPLATE_ID, update the location.
	(cp_parser_initializer_clause): Convert return type and local
	"initializer" to cp_expr.
	(cp_parser_braced_list): Likewise for return type.  Generate
	suitable locations.
	(cp_parser_lookup_name): Likewise for return type.  Use cp_expr's
	ctor to preserve the location_t of the name.
	(cp_parser_simple_cast_expression): Likewise for return type.
	(cp_parser_functional_cast): Convert return type and local "cast"
	to cp_expr.  Generate suitable locations.
	(cp_parser_objc_expression): Convert return type to cp_expr.k  Generate
	(cp_parser_objc_message_expression): Generate suitable locations.
	(cp_parser_objc_encode_expression): Convert return type to
	cp_expr.  Generate suitable locations.
	(cp_parser_objc_protocol_expression): Generate suitable locations.
	(cp_parser_objc_selector_expression): Generate suitable locations.
	(cp_parser_omp_for_cond): Attempt to use the location
	of "cond" for the binary op.
	(cp_parser_transaction_expression): Issue the tm-not-enabled error
	at the location of the __transaction_foo token, rather than at
	input_location.
	* semantics.c (finish_parenthesized_expr): Convert return type and
	param to cp_expr.  Preserve location.
	(perform_koenig_lookup): Likewise for return type
	and param.
	(finish_increment_expr): Likewise.  Generate suitable locations.
	(finish_unary_op_expr): Likewise for return type and local "result".
	Generate suitable locations.
	(finish_id_expression): Convert return type to cp_expr and use
	cp_expr ctor to preserve location information.
	* typeck.c (build_class_member_access_expr): Convert param to
	cp_expr.
	(finish_class_member_access_expr): Likewise.
	(cp_build_binary_op): Convert a build2 to a build2_loc.
	(build_x_unary_op): Convert param from tree to cp_expr.
	(build_nop): Preserve the location of EXPR.
	(build_c_cast): Provide an overloaded variant that takes a cp_expr
	and returns a cp_expr.
	(build_x_modify_expr): Convert return type from tree to cp_expr.

gcc/testsuite/ChangeLog:
	* g++.dg/cpp0x/nsdmi-template14.C: Move dg-error directive.
	* g++.dg/gomp/loop-1.C: Update dg-error locations.
	* g++.dg/plugin/diagnostic-test-expressions-1.C: New file, adapted
	from gcc.dg/plugin/diagnostic-test-expressions-1.c.
	* g++.dg/plugin/plugin.exp (plugin_test_list): Add the above.
	* g++.dg/template/crash55.C: Update dg-error directives.
	* g++.dg/template/pseudodtor3.C: Update column numbers in dg-error
	directives.
	* g++.dg/template/pr64100.C: Update location of dg-error
	directive.
	* g++.dg/template/ref3.C: Add XFAIL (PR c++/68699).
	* g++.dg/ubsan/pr63956.C: Update dg directives to reflect
	improved location information.
	* g++.dg/warn/pr35635.C (func3): Update location of a
	dg-warning.
	* g++.dg/warn/Wconversion-real-integer2.C: Update location of
	dg-warning; add a dg-message.
	* obj-c++.dg/plugin/diagnostic-test-expressions-1.mm: New file,
	based on objc.dg/plugin/diagnostic-test-expressions-1.m.
	* obj-c++.dg/plugin/plugin.exp: New file, based on
	objc.dg/plugin/plugin.exp.

From-SVN: r231293

	PR c/68656
	* toplev.c (init_asm_output): Pass UNKNOWN_LOCATION instead of
	input_location to inform.
	(process_options): Use warning_at (UNKNOWN_LOCATION instead of
	warning ( and error_at (UNKNOWN_LOCATION instead of error (.
	Pass UNKNOWN_LOCATION instead of input_location to fatal_error.

	* gcc.target/i386/pr65044.c: Expect error on line 0 rather than
	line 1.
	* g++.dg/opt/pr34036.C: Expect warning on line 0 rather than line 1.
	* gcc.dg/tree-ssa/pr23109.c: Likewise.
	* gcc.dg/tree-ssa/recip-5.c: Likewise.
	* gcc.dg/pr33007.c: Likewise.

From-SVN: r231292

	* cgraphclones.c (cgraph_node::create_clone): Use merged_comdat.
	* cgraph.c (cgraph_node::dump): Dump merged_comdat.
	* ipa-icf.c (sem_function::merge): Drop merged_comdat when merging
	comdat and non-comdat.
	* cgraph.h (cgraph_node): Rename merged to merged_comdat.
	* ipa-inline-analysis.c (simple_edge_hints): Check both merged_comdat
	and icf_merged.

	* lto-symtab.c (lto_cgraph_replace_node): Update code computing
	merged_comdat.

From-SVN: r231291

gcc:
2015-12-04  Paolo Bonzini  <bonzini@gnu.org>

	* c-family/c-common.c (maybe_warn_shift_overflow): Warn on all
	overflows if shifting 1 out of the sign bit.

gcc/testsuite:
2015-12-04  Paolo Bonzini  <bonzini@gnu.org>

	* c-c++-common/Wshift-overflow-1.c: Test shifting 1 out of the sign bit.
	* c-c++-common/Wshift-overflow-2.c: Test shifting 1 out of the sign bit.
	* c-c++-common/Wshift-overflow-3.c: Test shifting 1 out of the sign bit.
	* c-c++-common/Wshift-overflow-4.c: Test shifting 1 out of the sign bit.
	* c-c++-common/Wshift-overflow-6.c: Test shifting 1 out of the sign bit.
	* c-c++-common/Wshift-overflow-7.c: Test shifting 1 out of the sign bit.

From-SVN: r231290

	PR libstdc++/57060
	* include/std/thread (operator==(thread::id, thread::id)): Do not use
	__gthread_equal.
	(operator<(thread::id, thread::id)): Add comment.
	(this_thread::get_id()): Do not use __gthread_self for single-threaded
	programs using glibc.
	* testsuite/30_threads/this_thread/57060.cc: New.

From-SVN: r231289

"register_operand" was a bit confusing.  Also some other minor cleanups.


	* (cstore<mode>4_unsigned): Use gpc_reg_operand instead of
	register_operand.  Remove empty constraints.  Use std::swap.
	(cstore_si_as_di, cstore<mode>4_signed_imm,
	cstore<mode>4_unsigned_imm, cstore<mode>4 for GPR): Use
	gpc_reg_operand instead of register_operand.
	(cstore<mode>4 for FP): Use gpc_reg_operand instead of
	register_operand.  Remove empty constraints.

From-SVN: r231287

        * common/config/msp430/msp430-common.c (msp430_handle_option):
	Pass both -mmcu and -mcpu on to the back end if they are both
	defined.
	* config/msp430/msp430.c (hwmult_name): New function.
        (msp430_option_override): If an unrecognised MCU name is
	detected only warn if the user has not provided suitable
        -mhwmult and -mcpu options.  Use msp430_warn_mcu to control
	warning messages.  Generate warnings about conflicts between
	-mmcu and -mcpu and -mhwmult options. 
	If neither -mcpu nor -mmcu have been specified but -mhwmult=
	f5series has the select the 430X isa.
	(msp430_no_hwmult): If -mmcu has not been specified and
	msp430_hwmult_type is AUTO then return true.
	* config/msp430/msp430.h (EXTRA_SPEC_FUNCTIONS): Define.
	(LIB_SPEC): Add hardware multiply library selection.
	* config/msp430/t-msp430: Delete hardware multiply multilibs.
	Add rule to build driver-msp430.o
	* config/msp430/driver-msp430.c: New file.
	* config/msp430/msp430.opt (warn-mcu): New option.
	* doc/invoke.texi: Update description of -mhwmult=auto.
        Document -mwarn-mcu option.

tests	* gcc.target/msp430/msp_abi_div_funcs.c: New test.
	* gcc.target/msp430/mul_main.h: New test support file.
	* gcc.target/msp430/mul_none.c: New test.
	* gcc.target/msp430/mul_16bit.c: New test.
	* gcc.target/msp430/mul_32bit.c: New test.
	* gcc.target/msp430/mul_f5.c: New test.

libgcc	* config/msp430/mpy.c (__mulhi3): Use a faster algorithm.
	Allow for the second argument being negative.
	* config.host (extra_parts): Define for MSP430.  Create separate
	libraries for each of the hardware multiply formats.
	* config/msp430/lib2hw_mul.S: Build only the multiply routines
	that are needed.
	* config/msp430/lib2mul.c: Likewise.
	* config/msp430/t-msp430 (LIB2ADD): Remove lib2hw_mul.S.
	Add rules to build hardware multiply libraries.
	* config/msp430/lib2divSI.c: (__mspabi_divlu): Alias for
	__mspabi_divul function.
	(__mspabi_divllu): New stub function.

From-SVN: r231286

From-SVN: r231285

This implements cstore for the last case we do not yet handle, using
the superopt algo from the venerable CWG.  The only integer cases we
do still not handle after this are for -m32 -mpowerpc64.


	* (cstore<mode>4_signed): New expander.
	(cstore<mode>4): Call it.

From-SVN: r231284

From-SVN: r231282

2015-12-04  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/68684
	* resolve.c (resolve_lock_unlock_event): Fix logic faux pas.

From-SVN: r231281

	PR tree-optimization/68680
	* calls.c (special_function_p): Return ECF_MAY_BE_ALLOCA for
	BUILT_IN_ALLOCA{,_WITH_ALIGN}.  Don't check for __builtin_alloca
	by name.

	* gcc.target/i386/pr68680.c: New test.

From-SVN: r231279

	PR tree-optimization/68671
	* tree-ssa-reassoc.c (maybe_optimize_range_tests): For basic
	blocks starting with the successor of first bb we've modified
	and ending with last_bb call reset_flow_sensitive_info_in_bb.

	* gcc.dg/pr68671.c: New test.

From-SVN: r231278

tree-ssa-reassoc.c (maybe_optimize_range_tests): Return boolean indicating if a gimple conditional was optimized to true/false.

	* tree-ssa-reassoc.c (maybe_optimize_range_tests): Return boolean
	indicating if a gimple conditional was optimized to true/false.
	(reassociate_bb): Bubble up return value from
	maybe_optimize_range_tests.
	(do_reassoc): Similarly, but for reassociate_bb.
	(execute_reassoc): Return TODO_cleanup_cfg as needed.

	* gcc.dg/tree-ssa/reassoc-43.c: New test.

From-SVN: r231277

	* config/aarch64/aarch64.c (aarch64_override_options_internal):
	Do not alter target_flags due to TARGET_GENERAL_REGS_ONLY_P.
	* doc/invoke.texi (AArch64 options): Mention that -mgeneral-regs-only
	does not affect the assembler directives.

	* gcc.target/aarch64/mgeneral-regs_4.c: New test.

From-SVN: r231275

gcc/testsuite/ChangeLog

	* gcc.dg/Wframe-address.c: S/390 requires the -mbackchain option to
	access arbitrary stack frames.
	* gcc.dg/Wno-frame-address.c: Likewise.

From-SVN: r231273

gcc/ChangeLog

	* config/s390/s390.c (s390_asm_file_start): Implement hook function to
	emit .machine and .machinemode to the top of the assembler file.
	(TARGET_ASM_FILE_START): Provide target hook.
	(s390_asm_output_machine_for_arch): Protect with
	HAVE_AS_MACHINE_MACHINEMODE instead of S390_USE_TARGET_ATTRIBUTE.

gcc/testsuite/ChangeLog

	* gcc.target/s390/asm-machine-1.c: Updated.
	* gcc.target/s390/asm-machine-2.c: Updated.
	* gcc.target/s390/asm-machine-3.c: Updated.
	* gcc.target/s390/asm-machine-4.c: Updated.

From-SVN: r231272

gcc/ChangeLog

	* config/s390/s390.opt (s390_arch_string): Remove.
	(s390_tune_string): Likewise.
	(s390_cost_pointer): Add Variable.
	(s390_tune_flags): Add TargetVariable.
	(s390_arch_flags, march=, mbackchain, mdebug, mesa, mhard-dfp),
	(mhard-float, mlong-double-128, mlong-double-64, mhtm, mvx),
	(mpacked-stack, msmall-exec, msoft-float, mstack-guard=, mstack-size=),
	(mtune=, mmvcle, mzvector, mzarch, mbranch-cost=, mwarn-dynamicstack),
	(mwarn-framesize=): Save option.
	(mno-stack-guard, mno-stack-guard): New option.
	(mwarn-dynamicstack): Allow mno-warn-dynamicstack.
	(mwarn-framesize=): Convert to UInteger (negative values are rejected
	now).
	* config/s390/s390-c.c (s390_cpu_cpp_builtins_internal): Split setting
	macros changeable through the GCC target pragma into a separate
	function.
	(s390_cpu_cpp_builtins): Likewise.
	(s390_pragma_target_parse): New function, implement GCC target pragma
	if enabled.
	(s390_register_target_pragmas): Register s390_pragma_target_parse if
	available.
	* common/config/s390/s390-common.c (s390_handle_option):
	Export.
	Move setting s390_arch_flags to s390.c.
	Remove s390_tune_flags.
	Allow 0 as argument to -mstack-size (switch to default value).
	Allow 0 as argument to -mstack-guard (switch off).
	Remove now unnecessary explicit parsing code for -mwarn-framesize.
	* config/s390/s390-protos.h (s390_handle_option): Export.
	(s390_valid_target_attribute_tree): Export.
	(s390_reset_previous_fndecl): Export.
	* config/s390/s390-builtins.def: Use new macro B_GROUP to mark the start
	and end of HTM and VX builtins.
	(s390_asm_output_function_prefix): Declare hook.
	(s390_asm_declare_function_size): Likewise.
	* config/s390/s390-builtins.h (B_GROUP): Use macro.
	* config/s390/s390-opts.h: Add comment about processor_type usage.
	* config/s390/s390.h (TARGET_CPU_IEEE_FLOAT_P, TARGET_CPU_ZARCH_P),
	(TARGET_CPU_LONG_DISPLACEMENT_P, TARGET_CPU_EXTIMM_P, TARGET_CPU_DFP_P),
	(TARGET_CPU_Z10_P, TARGET_CPU_Z196_P, TARGET_CPU_ZEC12_P),
	(TARGET_CPU_HTM_P, TARGET_CPU_Z13_P, TARGET_CPU_VX_P),
	(TARGET_HARD_FLOAT_P, TARGET_LONG_DISPLACEMENT_P, TARGET_EXTIMM_P),
	(TARGET_DFP_P, TARGET_Z10_P, TARGET_Z196_P, TARGET_ZEC12_P),
	(TARGET_HTM_P, TARGET_Z13_P, TARGET_VX_P, TARGET_CPU_EXTIMM),
	(TARGET_CPU_DFP, TARGET_CPU_Z10, TARGET_CPU_Z196, TARGET_CPU_ZEC12),
	(TARGET_CPU_HTM, TARGET_CPU_Z13, TARGET_LONG_DISPLACEMENT),
	(TARGET_EXTIMM, TARGET_DFP, TARGET_Z10, TARGET_Z196, TARGET_ZEC12),
	(TARGET_Z13, TARGET_VX, S390_USE_TARGET_ATTRIBUTE),
	(S390_USE_ARCHITECTURE_MODIFIERS, SWITCHABLE_TARGET),
	(ASM_DECLARE_FUNCTION_SIZE, ASM_OUTPUT_FUNCTION_PREFIX): Likewise.
	* config/s390/vecintrin.h: Use vector definitions even if __VEC__ is
	undefined.
	(vec_all_nan): Rewrite as macro using statement expressions to avoid
	that the vector keyword needs to be defined when including the file.
	(vec_all_numeric): Likewise.
	(vec_any_nan): Likewise.
	(vec_any_numeric):  Likewise.
	* config/s390/s390.c (s390_previous_fndecl): New static variable.
	(s390_set_current_function): New function.
	(s390_cost): Wrapper macro to allow defining the cost table pointer in
	the options file.
	(processor_table): Table for march= and mtune= parsing.
	(s390_init_builtins): Enable all builtins and types unconditionally.
	(s390_expand_builtin): Generate an error message if builtin is not
	supported by current options.
	Correct an error message.
	(s390_function_specific_restore): New function to set s390_cost.
	(s390_asm_output_machine_for_arch): New function for emitting .machine
	and .machinmode directives to the assembler file.
	(s390_asm_output_function_prefix): Likewise.
	(s390_asm_declare_function_size):  Likewise.
	(s390_asm_output_function_label): Add mdebug output for feature testing.
	(s390_option_override): Move implementation into internal function.
	(s390_option_override_internal): Likewise.
	Implement option overriding based on current options.
	(s390_valid_target_attribute_inner_p): New function implementing target
	attribute logic.
	(s390_valid_target_attribute_tree): Likewise.
	(s390_valid_target_attribute_p): Likewise.
	(s390_reset_previous_fndecl): Likewise.
	(s390_set_current_function): Likewise.
	(TARGET_SET_CURRENT_FUNCTION): Provide target hook function.
	(TARGET_OPTION_VALID_ATTRIBUTE_P): Likewise.
	(TARGET_OPTION_RESTORE): Likewise.
	* doc/extend.texi: S390: Document target attribute and pragma.
	* config.in: Regenerated.
	* configure: Regenerated.
	* configure.ac: S390: Check for .machinemode and .machine in gas.
	S390: Check for architecture modifiers support in gas.

gcc/testsuite/ChangeLog

	* gcc.target/s390/asm-machine-1.c: New test.
	* gcc.target/s390/asm-machine-2.c: New test.
	* gcc.target/s390/asm-machine-3.c: New test.
	* gcc.target/s390/asm-machine-4.c: New test.
	* gcc.target/s390/target-attribute/tattr-1.c: New test.
	* gcc.target/s390/target-attribute/tattr-2.c: New test.
	* gcc.target/s390/target-attribute/tattr-3.c: New test.
	* gcc.target/s390/target-attribute/tattr-4.c: New test.
	* gcc.target/s390/target-attribute/tattr-5.c: New test.
	* gcc.target/s390/target-attribute/tattr-6.c: New test.
	* gcc.target/s390/target-attribute/tattr-7.c: New test.
	* gcc.target/s390/target-attribute/tattr-8.c: New test.
	* gcc.target/s390/target-attribute/tattr-9.c: New test.
	* gcc.target/s390/target-attribute/tattr-10.c: New test.
	* gcc.target/s390/target-attribute/tattr-11.c: New test.
	* gcc.target/s390/target-attribute/tattr-12.c: New test.
	* gcc.target/s390/target-attribute/tattr-13.c: New test.
	* gcc.target/s390/target-attribute/tattr-14.c: New test.
	* gcc.target/s390/target-attribute/tattr-15.c: New test.
	* gcc.target/s390/target-attribute/tattr-16.c: New test.
	* gcc.target/s390/target-attribute/tattr-17.c: New test.
	* gcc.target/s390/target-attribute/tattr-18.c: New test.
	* gcc.target/s390/target-attribute/tattr-19.c: New test.
	* gcc.target/s390/target-attribute/tattr-arch-tune-1.c: New test.
	* gcc.target/s390/target-attribute/tattr-arch-tune-2.c: New test.
	* gcc.target/s390/target-attribute/tattr-m31-1.c: New test.
	* gcc.target/s390/target-attribute/tattr-m31-2.c: New test.
	* gcc.target/s390/target-attribute/tattr-m31-3.c: New test.
	* gcc.target/s390/target-attribute/tattr-m31-4.c: New test.
	* gcc.target/s390/target-attribute/tattr-m31-5.c: New test.
	* gcc.target/s390/target-attribute/tattr-m31-6.c: New test.
	* gcc.target/s390/target-attribute/tattr-m31-7.c: New test.
	* gcc.target/s390/target-attribute/tattr-m31-8.c: New test.
	* gcc.target/s390/target-attribute/tattr-m31-9.c: New test.
	* gcc.target/s390/target-attribute/tattr-m31-10.c: New test.
	* gcc.target/s390/target-attribute/tattr-m31-11.c: New test.
	* gcc.target/s390/target-attribute/tattr-m31-12.c: New test.
	* gcc.target/s390/target-attribute/tattr-m31-13.c: New test.
	* gcc.target/s390/target-attribute/tattr-m31-14.c: New test.
	* gcc.target/s390/target-attribute/tattr-m31-15.c: New test.
	* gcc.target/s390/target-attribute/tattr-m31-16.c: New test.
	* gcc.target/s390/target-attribute/tattr-m31-17.c: New test.
	* gcc.target/s390/target-attribute/tattr-m31-18.c: New test.
	* gcc.target/s390/target-attribute/tattr-m31-19.c: New test.
	* gcc.target/s390/target-attribute/tattr-m31-20.c: New test.
	* gcc.target/s390/target-attribute/tattr-m31-21.c: New test.
	* gcc.target/s390/target-attribute/tattr-m31-22.c: New test.
	* gcc.target/s390/target-attribute/tattr-m31-23.c: New test.
	* gcc.target/s390/target-attribute/tattr-m31-24.c: New test.
	* gcc.target/s390/target-attribute/tattr-m31-25.c: New test.
	* gcc.target/s390/target-attribute/tattr-m31-26.c: New test.
	* gcc.target/s390/target-attribute/tattr-m31-27.c: New test.
	* gcc.target/s390/target-attribute/tattr-m31-28.c: New test.
	* gcc.target/s390/target-attribute/tattr-m31-29.c: New test.
	* gcc.target/s390/target-attribute/tattr-m31-30.c: New test.
	* gcc.target/s390/target-attribute/tattr-m31-31.c: New test.
	* gcc.target/s390/target-attribute/tattr-m31-32.c: New test.
	* gcc.target/s390/target-attribute/tattr-m64-1.c: New test.
	* gcc.target/s390/target-attribute/tattr-m64-2.c: New test.
	* gcc.target/s390/target-attribute/tattr-m64-3.c: New test.
	* gcc.target/s390/target-attribute/tattr-m64-4.c: New test.
	* gcc.target/s390/target-attribute/tattr-m64-5.c: New test.
	* gcc.target/s390/target-attribute/tattr-m64-6.c: New test.
	* gcc.target/s390/target-attribute/tattr-m64-7.c: New test.
	* gcc.target/s390/target-attribute/tattr-m64-8.c: New test.
	* gcc.target/s390/target-attribute/tattr-m64-9.c: New test.
	* gcc.target/s390/target-attribute/tattr-m64-10.c: New test.
	* gcc.target/s390/target-attribute/tattr-m64-11.c: New test.
	* gcc.target/s390/target-attribute/tattr-m64-12.c: New test.
	* gcc.target/s390/target-attribute/tattr-m64-13.c: New test.
	* gcc.target/s390/target-attribute/tattr-m64-14.c: New test.
	* gcc.target/s390/target-attribute/tattr-m64-15.c: New test.
	* gcc.target/s390/target-attribute/tattr-m64-16.c: New test.
	* gcc.target/s390/target-attribute/tattr-m64-17.c: New test.
	* gcc.target/s390/target-attribute/tattr-m64-18.c: New test.
	* gcc.target/s390/target-attribute/tattr-m64-19.c: New test.
	* gcc.target/s390/target-attribute/tattr-m64-20.c: New test.
	* gcc.target/s390/target-attribute/tattr-m64-21.c: New test.
	* gcc.target/s390/target-attribute/tattr-m64-22.c: New test.
	* gcc.target/s390/target-attribute/tattr-m64-23.c: New test.
	* gcc.target/s390/target-attribute/tattr-m64-24.c: New test.
	* gcc.target/s390/target-attribute/tattr-m64-25.c: New test.
	* gcc.target/s390/target-attribute/tattr-m64-26.c: New test.
	* gcc.target/s390/target-attribute/tattr-m64-27.c: New test.
	* gcc.target/s390/target-attribute/tattr-m64-28.c: New test.
	* gcc.target/s390/target-attribute/tattr-m64-29.c: New test.
	* gcc.target/s390/target-attribute/tattr-m64-30.c: New test.
	* gcc.target/s390/target-attribute/tattr-m64-31.c: New test.
	* gcc.target/s390/target-attribute/tattr-m64-32.c: New test.
	* gcc.target/s390/target-attribute/tpragma-struct-vx-2.c: New test.
	* gcc.target/s390/s390.exp (check_effective_target_target_attribute):
	Add check whether target attribute is available.
	Run test in target-attribute subdir.
	* gcc.target/s390/s390-c++.exp
	(check_effective_target_target_attribute): Likewise.

From-SVN: r231271

gcc/
	* c-family/c-common.c (c_common_attribute_table[]): Update max arguments
	count for "simd" attribute.
	(handle_simd_attribute): Parse "notinbranch" and "inbranch" arguments.
	* doc/extend.texi ("simd"): Describe new flags.
gcc/testsuite/
	* c-c++-common/attr-simd-4.c: New test.
	* c-c++-common/attr-simd-5.c: New test.

From-SVN: r231270

gcc/

	* config/i386/sse.md (<avx512>_store<mode>_mask): Fix
	operand checked for alignment.

From-SVN: r231269

	* config/nvptx/nvptx.c (write_one_arg): Deal with prologue
	emission too. Change 'no_arg_types' to 'prototyped'.
	(write_fn_proto):  Use write_one_arg for stdarg, static chain &
	main.
	(nvptx_declare_function_name): Use write_one_arg for prologue copies.

From-SVN: r231267

From-SVN: r231266

2015-12-04  Richard Biener  <rguenther@suse.de>

	* tree-ssa-sccvn.c (sccvn_dom_walker): Add unreachable_dom
	member and initialize it.
	(sccvn_dom_walker::after_dom_children): Reset unreachable_dom
	if necessary.
	(sccvn_dom_walker::before_dom_children): If unreachable_dom
	is set BB is not reachable either.  Set unreachable_dom
	if not set and BB is unreachable.

From-SVN: r231262

2015-12-04  Richard Biener  <rguenther@suse.de>

	* bitmap.c (bitmap_find_bit): Guard the bitmap descriptor
	query with GATHER_STATISTICS.

From-SVN: r231261

	PR middle-end/65958
	* gimplify.c (struct gimplify_ctx): Turn boolean fields into 1-bit
	fields, add keep_stack and reorder them.
	(gimplify_bind_expr): Save gimplify_ctxp->keep_stack on entry then
	set it to false.  Do not insert a stack save/restore pair if it has
	been set to true by the gimplification of the statements.
	Restore it to the saved value on exit if it is still false.
	(gimplify_vla_decl): Do not set gimplify_ctxp->save_stack here.
	(gimplify_call_expr) <BUILT_IN_ALLOCA[_WITH_ALIGN]>: New case.  Set
	either save_stack or keep_stack depending on CALL_ALLOCA_FOR_VAR_P.
	* doc/extend.texi (Variable Length): Document new behavior.
	* doc/generic.texi (Blocks): Document new handling of VLAs.

From-SVN: r231260

	PR middle-end/65958
	* config/aarch64/aarch64-protos.h (aarch64_output_probe_stack-range):
	Declare.
	* config/aarch64/aarch64.md: Declare UNSPECV_BLOCKAGE and
	UNSPEC_PROBE_STACK_RANGE.
	(blockage): New instruction.
	(probe_stack_range_<PTR:mode>): Likewise.
	* config/aarch64/aarch64.c (aarch64_emit_probe_stack_range): New
	function.
	(aarch64_output_probe_stack_range): Likewise.
	(aarch64_expand_prologue): Invoke aarch64_emit_probe_stack_range if
	static builtin stack checking is enabled.
	* config/aarch64/aarch64-linux.h (STACK_CHECK_STATIC_BUILTIN):
	Define to 1.

Co-Authored-By: Tristan Gingold <gingold@adacore.com>

From-SVN: r231259

2015-12-04  Richard Biener  <rguenther@suse.de>

	PR testsuite/68681
	* gcc.dg/vect/pr45752.c: Add --param tree-reassoc-width=1.

From-SVN: r231253

	PR target/68214
	* config/arm/arm.md (*call_mem): Delete pattern.
	(*call_value_mem): Likewise.
	* config/arm/arm.c (output_call_mem): Delete.
	* config/arm/arm-protos.h (output_call_mem): Delete prototype.

From-SVN: r231252

	* config/aarch64/atomics.md (atomic_store<mode>): Use predicate
	aarch64_sync_memory_operand.

From-SVN: r231251

	* c-tree.h (c_build_va_arg): Adjust prototype.
	* c-parser.c (c_parser_postfix_expression): Adjust call to above.
	* c-typeck.c (c_build_va_arg): Rename LOC parameter to LOC2, add LOC1
	parameter, adjust throughout and issue an error if EXPR is a component
	with reverse storage order.

From-SVN: r231250

	PR target/68655
	* config/i386/i386.c (canonicalize_vector_int_perm): New function.
	(expand_vec_perm_1): Use it and recurse if everything else
	failed.  Use nd.perm instead of perm2.
	(expand_vec_perm_even_odd_1): If testing_p, use gen_raw_REG
	instead of gen_lowpart for the target.
	(ix86_expand_vec_perm_const_1): Use canonicalize_vector_int_perm
	and recurse if everything else failed.

	* gcc.dg/torture/vshuf-4.inc (TESTS): Add one extra test.
	* gcc.dg/torture/vshuf-4.inc (TESTS): Add two extra tests.

From-SVN: r231247

2015-12-04  Richard Biener  <rguenther@suse.de>

	PR middle-end/68636
	* builtins.c (get_pointer_alignment_1): Take care of byte to
	bit alignment computation overflow.

From-SVN: r231246