PR middle-end/68762
	* omp-simd-clone.c: Include varasm.h.
	(simd_clone_create): Copy over DECL_COMDAT, DECL_WEAK, DECL_EXTERNAL,
	DECL_VISIBILITY, DECL_VISIBILITY_SPECIFIED, DECL_DLLIMPORT_P and for
	DECL_ONE_ONLY call make_decl_one_only.  Fix up spelling in comment and
	update function name.

	* g++.dg/vect/pr68762-1.cc: New test.
	* g++.dg/vect/pr68762-2.cc: New test.
	* g++.dg/vect/pr68762.h: New file.

From-SVN: r239248

gcc/c-family/ChangeLog:
	* c-format.c (class flag_chars_t): New class.
	(struct length_modifier): New struct.
	(class argument_parser): New class.
	(flag_chars_t::flag_chars_t): New ctor.
	(flag_chars_t::has_char_p): New method.
	(flag_chars_t::add_char): New method.
	(flag_chars_t::validate): New method.
	(flag_chars_t::get_alloc_flag): New method.
	(flag_chars_t::assignment_suppression_p): New method.
	(argument_parser::argument_parser): New ctor.
	(argument_parser::read_any_dollar): New method.
	(argument_parser::read_format_flags): New method.
	(argument_parser::read_any_format_width): New method.
	(argument_parser::read_any_format_left_precision): New method.
	(argument_parser::read_any_format_precision): New method.
	(argument_parser::handle_alloc_chars): New method.
	(argument_parser::read_any_length_modifier): New method.
	(argument_parser::read_any_other_modifier): New method.
	(argument_parser::find_format_char_info): New method.
	(argument_parser::validate_flag_pairs): New method.
	(argument_parser::give_y2k_warnings): New method.
	(argument_parser::parse_any_scan_set): New method.
	(argument_parser::handle_conversions): New method.
	(argument_parser::check_argument_type): New method.
	(check_format_info_main): Introduce classes argument_parser
	and flag_chars_t, moving the code within the loop into methods
	of these classes.  Make various locals "const".

From-SVN: r239247

	* config/avr/driver-avr.c (specfiles_doc_url): Remove.
	(avr_diagnose_devicespecs_error): Remove.
	(avr_devicespecs_file): Remove composing absolute path for specfile
	and its verbose info. Remove conditions to check specs-file,

From-SVN: r239246

gcc/testsuite/ChangeLog:
	* gcc/testsuite/g++.dg/cpp0x/constexpr-cast.C: Correct target selector.
	* gcc/testsuite/g++.dg/warn/overflow-warn-3.C: Same.
	* gcc/testsuite/g++.dg/warn/overflow-warn-4.C: Same.

From-SVN: r239242

re PR rtl-optimization/72821 (RTL check: expected elt 2 type 'B', have '0' (rtx barrier) in BLOCK_FOR_INSN, at rtl.h:1424)

	PR rtl-optimization/72821
	* lra-spills.c (regno_in_use_p): Don't use BLOCK_FOR_INSN on barriers,
	just return false for them.

From-SVN: r239241

The generic reload fix for pr72771 exposed a problem with recognizing
-mcmodel=medium/large TOC references generated during reload.

	PR target/72771
	* config/rs6000/rs6000.c (toc_relative_expr_p): Allow (lo_sum (high))
	toc refs created during reload.  Update function comment.

From-SVN: r239240

gcc/fortran/ChangeLog:

2016-08-08  Andre Vehreschild  <vehre@gcc.gnu.org>

	PR fortran/71936
	* trans-array.c (gfc_array_allocate): When SOURCE= is a function
	stick with the ref of the object to allocate.

gcc/testsuite/ChangeLog:

2016-08-08  Andre Vehreschild  <vehre@gcc.gnu.org>

	PR fortran/71936
	* gfortran.dg/allocate_with_source_21.f03: New test.

From-SVN: r239237

gcc/testsuite/ChangeLog:

2016-08-08  Andre Vehreschild  <vehre@gcc.gnu.org>

	PR fortran/72698
	* gfortran.dg/allocate_with_source_20.f03: New test.


gcc/fortran/ChangeLog:

2016-08-08  Andre Vehreschild  <vehre@gcc.gnu.org>

	PR fortran/72698
	* trans-stmt.c (gfc_trans_allocate): Prevent generating code for
	copy of zero sized string and with it an ICE.

From-SVN: r239236

After fixing the constraint problem, we hit an "insn does not satisfy
its constraints" with -mno-lra on the following insn, a vector load
from mem which has an invalid offset:
(insn 631 630 1122 12 (set (reg:SF 108 31 [orig:260 pretmp_44 ] [260])
        (mem:SF (plus:DI (reg:DI 30 30 [orig:338 ivtmp.141 ] [338])
                (const_int 2 [0x2])) [5 MEM[base: _1, offset: 2B]+0 S4 A32])) 470 {movsf_hardfloat}
     (nil))

Here are the reload costs for the various alternatives of
movsf_hardfloat:
"=!r, !r,  m,  f, ww, ww, !r,  f, wb,  m, wY, wu,  Z,?wn, ?r,*c*l, !r, *h"
  "r,  m,  r,  f, ww,  j,  j,  m, wY,  f, wb,  Z, wu,  r, wn,   r, *h,  0"
 617 609  17  17   8   8 617   9   8  17  17   8  17  23  23   17 617  17

Notice that the cost for a vector<-vector move (ww,ww) is the same as
the cost for a vector<-mem move (wb,wY or wu,Z).  Since the
vector<-vector move comes first, it is chosen and the mem part of the
insn reloaded.  That just gives another copy of insn 631.

	PR target/72802
	* config/rs6000/rs6000.md (mov<mode>_hardfloat): Sort
	alternatives.  Put loads first, then stores, and reg/reg moves
	within same class later.  Delete attr length.
testsuite/
	* gcc.c-torture/compile/pr72802.c: New.

From-SVN: r239234

We can't use "o" constraint for lsxxp/stxssp since those insns have a
DS-form offset field, ie. the bottom two bits of the offset must be 0.
So use "wY" instead, but that leads to finding another problem.

mem_operand_gpr is only suitable for gpr loads/stores since it does
not enforce multiple-of-4 offsets when -m32.  So "wY" can't use
mem_operand_gpr, and the vsx tests in mem_operand_gpr are bogus.

I've deleted offsettable_mem_14bit_operand because it wasn't used
anywhere but in the wY constraint.  Note also that the new wY
constraint doesn't use memory_operand because that is redundant in a
constraint, having already been tested in the predicate.

	PR target/72802
	* config/rs6000/rs6000.c (mem_operand_gpr): Remove vsx dform test.
	(mem_operand_ds_form): New predicate.
	* config/rs6000/rs6000-protos.h (mem_operand_ds_form): Declare.
	* config/rs6000/constraints.md (wY): Use mem_operand_df_form.
	* config/rs6000/predicates.md (offsettable_mem_14bit_operand): Delete.
	* config/rs6000/rs6000.md (f32_lm2, f32_sm2): Use wY for SF.
	(extendsfdf2_fpr): Replace o constraint with wY.

From-SVN: r239233

gcc/testsuite/ChangeLog:

2016-08-08  Andre Vehreschild  <vehre@gcc.gnu.org>

	PR fortran/70524
	* gfortran.dg/dependency_48.f90: New test.


gcc/fortran/ChangeLog:

2016-08-08  Andre Vehreschild  <vehre@gcc.gnu.org>

	PR fortran/70524
	* trans-array.c (gfc_trans_dummy_array_bias): Ensure that the
	location information is correctly set.
	* trans-decl.c (gfc_trans_deferred_vars): Set the locus of the
	current construct early.

From-SVN: r239230

From-SVN: r239228

    
    Also change the configure script to set GOARCH correctly for ia64, and
    add ia64 as a processor to match.sh and gotest.
    
    Reviewed-on: https://go-review.googlesource.com/25549

From-SVN: r239225

2016-08-07  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/70040
	Corrected last ChangeLog entry.

From-SVN: r239222

2016-08-07  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/71961
	* gfortran.dg/pr70040.f90:  New testcase.

From-SVN: r239221

2016-08-07  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/71961
	* gfortran.dg/matmul_10.f90:  New testcase.

From-SVN: r239220

	* tree-ssa-threadbackward.c: Include tree-inline.h
	(profitable_jump_thread_path): Use estimate_num_insns to estimate
	size of copied block; for cold paths reduce duplication.
	(find_jump_threads_backwards): Remove redundant tests.
	(pass_thread_jumps::gate): Enable for -Os.
	* gcc.dg/tree-ssa/ssa-dom-thread-7.c: Update testcase.

From-SVN: r239219

re PR c/72816 (ICE on x86_64-linux-gnu (tree check: expected tree that contains ‘decl with RTL’ structure, have ‘field_decl’ in set_decl_rtl, at emit-rtl.c:1282))

	PR c/72816
	* stor-layout.c (layout_decl): Fix up formatting.
	(relayout_decl): Allow DECL to be FIELD_DECL.

	* gcc.dg/pr72816.c: New test.

From-SVN: r239218

Fix thinko in rev 239011 (git d1d05ab7).

	* config/rs6000/rs6000.md (fix_trunc<mode>si2): Fix mode of reg.

From-SVN: r239217

From-SVN: r239216

gcc/ChangeLog:

2016-08-07  Kugan Vivekanandarajah  <kuganv@linaro.org>

	* data-streamer-in.c (streamer_read_wide_int): New.
	(streamer_read_widest_int): Renamed function.
	* data-streamer-out.c (streamer_write_wide_int): New
	(streamer_write_widest_int): Renamed function.
	* lto-streamer-in.c (streamer_read_wi): Renamed and moved to
	data-stream-in.c.
	(input_cfg): Call renamed function.
	* lto-streamer-out.c (streamer_write_wi): Renamed and moved to
	data-stream-out.c.
	(output_cfg): Call renamed function.
	* data-streamer.h: Add declarations.

From-SVN: r239213

2016-08-08  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

	* tree-ssa-ccp.c (extend_mask): New param sgn.
	Remove ORing with wi::mask.
	(get_default_value): Adjust call to extend_mask to pass sign.
	(evaluate_stmt): Likewise.

From-SVN: r239212

libcpp/ChangeLog:
	PR bootstrap/72823
	* charset.c (_cpp_valid_ucn): Replace overzealous assert with one
	that allows for char_range to be non-NULL when loc_reader is NULL.

From-SVN: r239211

    
    Add a ppc build constraint for internal/syscall/unix.
    
    Reviewed-on: https://go-review.googlesource.com/25547

From-SVN: r239210

	* doc/xml/manual/status_cxx2017.xml: Update status table.
	* doc/html/manual/status.html: Regenerate.

From-SVN: r239209

From-SVN: r239193

	* gcov.c (handle_cycle): Use INTTYPE_MAXIMUM (int64_t) instead of
	INT64_MAX.

From-SVN: r239192

	PR libstdc++/72820
	* include/std/functional (_Function_base::_Base_manager::_M_clone):
	Qualify new operator.
	* testsuite/20_util/function/cons/72820.cc: New test.

From-SVN: r239191

match.pd ((intptr_t) x eq/ne CST to x eq/ne (typeof x) cst): Disable transform if operand's type is pointer to function or method.

2016-08-06  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

	* match.pd ((intptr_t) x eq/ne CST to x eq/ne (typeof x) cst): Disable
	transform if operand's type is pointer to function or method.

From-SVN: r239190

    
    Previously the libgo Makefile explicitly listed the set of files to
    compile for each package.  For packages that use build tags, this
    required a lot of awkward automake conditionals in the Makefile.
    
    This CL changes the build to look at the build tags in the files.
    The new shell script libgo/match.sh does the matching.  This required
    adjusting a lot of build tags, and removing some files that are never
    used.  I verified that the exact same sets of files are compiled on
    amd64 GNU/Linux.  I also tested the build on i386 Solaris.
    
    Writing match.sh revealed some bugs in the build tag handling that
    already exists, in a slightly different form, in the gotest shell
    script.  This CL fixes those problems as well.
    
    The old code used automake conditionals to handle systems that were
    missing strerror_r and wait4.  Rather than deal with those in Go, those
    functions are now implemented in runtime/go-nosys.c when necessary, so
    the Go code can simply assume that they exist.
    
    The os testsuite looked for dir_unix.go, which was never built for gccgo
    and has now been removed.  I changed the testsuite to look for dir.go
    instead.
    
    Reviewed-on: https://go-review.googlesource.com/25546

From-SVN: r239189

From-SVN: r239188

gcc/cp:

	* call.c (convert_like_real): Harmonize diagnostics for invalid
	reference binding.

gcc/testsuite:

	* call.c (convert_like_real): Harmonize diagnostics for invalid
	reference binding.
	* g++.dg/conversion/pr16333.C: Adjust dg-error regexp.
	* g++.dg/conversion/pr41426.C: Likewise.
	* g++.dg/conversion/pr66211.C: Likewise.
	* g++.dg/cpp1y/lambda-init9.C: Likewise.
	* g++.dg/init/ref8.C: Likewise.
	* g++.old-deja/g++.law/cvt20.C: Likewise.
	* g++.old-deja/g++.mike/p9732c.C: Likewise.

From-SVN: r239184

	* doc/xml/manual/status_cxx2017.xml: Add missing LFTSv2 features.
	* doc/html/manual/status.html: Regenerate.
	* include/Makefile.am: Add new header.
	* include/Makefile.in: Regenerate.
	* include/bits/invoke.h: New header.
	(__invoke): Make constexpr. Add && to types in exception specification.
	* include/experimental/tuple (apply, __apply_impl): Fix non-reserved
	names. Include <bits/invoke.h> and use std::__invoke.
	* include/std/functional (__invfwd, __invoke_impl, __invoke): Move to
	new header.
	(invoke): Add && to types in exception specification.
	* include/std/tuple (apply, __apply_impl): Define for C++17.
	* testsuite/20_util/tuple/apply/1.cc: New test.
	* testsuite/20_util/tuple/element_access/get_neg.cc: Adjust dg-error
	lineno.

From-SVN: r239183

gcc/ChangeLog:

	PR tree-optimization/18046
	* tree-ssa-threadedge.c: Include cfganal.h.
	(simplify_control_statement_condition): If simplifying a
	GIMPLE_SWITCH, replace the index operand of the GIMPLE_SWITCH
	with the dominating ASSERT_EXPR before handing it off to VRP.
	Mention that a CASE_LABEL_EXPR may be returned.
	(thread_around_empty_blocks): Adjust to handle
	simplify_control_statement_condition() returning a
	CASE_LABEL_EXPR.
	(thread_through_normal_block): Likewise.
	* tree-vrp.c (simplify_stmt_for_jump_threading): Simplify
	a switch statement by trying to determine which case label
	will be taken.

gcc/testsuite/ChangeLog:

	PR tree-optimization/18046
	* gcc.dg/tree-ssa/vrp105.c: New test.
	* gcc.dg/tree-ssa/vrp106.c: New test.

From-SVN: r239181

2016-08-05  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/69847
	* lra-constraints.c (process_invariant_for_inheritance): Save
	pattern instead of src.
	(remove_inheritance_pseudos): Use the pattern.  Add assert.

From-SVN: r239180

	PR go/72812
	* go-gcc.cc (char_needs_encoding): New static function.
	(needs_encoding, fetch_utf8_char): New static functions.
	(encode_id): New static function.
	(Gcc_backend::global_variable): Set asm name if the name is not
	simple ASCII.
	(Gcc_backend::implicit_variable): Likewise.
	(Gcc_backend::implicit_variable_reference): Likewise.
	(Gcc_backend::immutable_struct): Likewise.
	(Gcc_backend::immutable_struct_reference): Likewise.
	(Gcc_backend::function): Likewise.

From-SVN: r239179

constexpr.c (cxx_eval_store_expression): Remove hyphen from the spelling of "constant-expression" in diagnostic messages...


gcc/cp/ChangeLog:

	* constexpr.c (cxx_eval_store_expression): Remove hyphen from
	the spelling of "constant-expression" in diagnostic messages
	for consistency.
	(cxx_eval_constant_expression): Same.
	(cxx_eval_outermost_constant_expr): Same.
	(potential_constant_expression_1): Same.

gcc/testsuite/ChangeLog:

	* g++.dg/cpp0x/constexpr-cast.C: Avoid assuming (void*)1 is spelled
	1ul in diagnostics.  Remove hyphen from "constant-expression."
	* g++.dg/cpp0x/constexpr-50060.C: Adjust.
	* g++.dg/cpp0x/static_assert3.C: Same.
	* g++.dg/cpp1y/constexpr-throw.C: Same.
	* g++.dg/template/nontype3.C: Same.
	* g++.dg/warn/overflow-warn-1.C: Same.
	* g++.dg/warn/overflow-warn-3.C: Same.
	* g++.dg/warn/overflow-warn-4.C: Same.

From-SVN: r239176

gcc/c-family/ChangeLog:
	* c-common.c: Include "substring-locations.h".
	(get_cpp_ttype_from_string_type): New function.
	(g_string_concat_db): New global.
	(substring_loc::get_range): New method.
	* c-common.h (g_string_concat_db): New declaration.
	(class substring_loc): New class.
	* c-lex.c (lex_string): When concatenating strings, capture the
	locations of all tokens using a new obstack, and record the
	concatenation locations within g_string_concat_db.
	* c-opts.c (c_common_init_options): Construct g_string_concat_db
	on the ggc-heap.

gcc/ChangeLog:
	* input.c (string_concat::string_concat): New constructor.
	(string_concat_db::string_concat_db): New constructor.
	(string_concat_db::record_string_concatenation): New method.
	(string_concat_db::get_string_concatenation): New method.
	(string_concat_db::get_key_loc): New method.
	(class auto_cpp_string_vec): New class.
	(get_substring_ranges_for_loc): New function.
	(get_source_range_for_substring): New function.
	(get_num_source_ranges_for_substring): New function.
	(class selftest::lexer_test_options): New class.
	(struct selftest::lexer_test): New struct.
	(class selftest::ebcdic_execution_charset): New class.
	(selftest::ebcdic_execution_charset::s_singleton): New variable.
	(selftest::lexer_test::lexer_test): New constructor.
	(selftest::lexer_test::~lexer_test): New destructor.
	(selftest::lexer_test::get_token): New method.
	(selftest::assert_char_at_range): New function.
	(ASSERT_CHAR_AT_RANGE): New macro.
	(selftest::assert_num_substring_ranges): New function.
	(ASSERT_NUM_SUBSTRING_RANGES): New macro.
	(selftest::assert_has_no_substring_ranges): New function.
	(ASSERT_HAS_NO_SUBSTRING_RANGES): New macro.
	(selftest::test_lexer_string_locations_simple): New function.
	(selftest::test_lexer_string_locations_ebcdic): New function.
	(selftest::test_lexer_string_locations_hex): New function.
	(selftest::test_lexer_string_locations_oct): New function.
	(selftest::test_lexer_string_locations_letter_escape_1): New function.
	(selftest::test_lexer_string_locations_letter_escape_2): New function.
	(selftest::test_lexer_string_locations_ucn4): New function.
	(selftest::test_lexer_string_locations_ucn8): New function.
	(selftest::uint32_from_big_endian): New function.
	(selftest::test_lexer_string_locations_wide_string): New function.
	(selftest::uint16_from_big_endian): New function.
	(selftest::test_lexer_string_locations_string16): New function.
	(selftest::test_lexer_string_locations_string32): New function.
	(selftest::test_lexer_string_locations_u8): New function.
	(selftest::test_lexer_string_locations_utf8_source): New function.
	(selftest::test_lexer_string_locations_concatenation_1): New
	function.
	(selftest::test_lexer_string_locations_concatenation_2): New
	function.
	(selftest::test_lexer_string_locations_concatenation_3): New
	function.
	(selftest::test_lexer_string_locations_macro): New function.
	(selftest::test_lexer_string_locations_stringified_macro_argument):
	New function.
	(selftest::test_lexer_string_locations_non_string): New function.
	(selftest::test_lexer_string_locations_long_line): New function.
	(selftest::test_lexer_char_constants): New function.
	(selftest::input_c_tests): Call the new test functions once per
	case within the line_table test matrix.
	* input.h (struct string_concat): New struct.
	(struct location_hash): New struct.
	(class string_concat_db): New class.
	* substring-locations.h: New header.

gcc/testsuite/ChangeLog:
	* gcc.dg/plugin/diagnostic-test-string-literals-1.c: New file.
	* gcc.dg/plugin/diagnostic-test-string-literals-2.c: New file.
	* gcc.dg/plugin/diagnostic_plugin_test_string_literals.c: New file.
	* gcc.dg/plugin/plugin.exp (plugin_test_list): Add the above new files.

libcpp/ChangeLog:
	* charset.c (cpp_substring_ranges::cpp_substring_ranges): New
	constructor.
	(cpp_substring_ranges::~cpp_substring_ranges): New destructor.
	(cpp_substring_ranges::add_range): New method.
	(cpp_substring_ranges::add_n_ranges): New method.
	(_cpp_valid_ucn): Add "char_range" and "loc_reader" params; if
	they are non-NULL, read position information from *loc_reader
	and update char_range->m_finish accordingly.
	(convert_ucn): Add "char_range", "loc_reader", and "ranges"
	params.  If loc_reader is non-NULL, read location information from
	it, and update *ranges accordingly, using char_range.
	Conditionalize the conversion into tbuf on tbuf being non-NULL.
	(convert_hex): Likewise, conditionalizing the call to
	emit_numeric_escape on tbuf.
	(convert_oct): Likewise.
	(convert_escape): Add params "loc_reader" and "ranges".  If
	loc_reader is non-NULL, read location information from it, and
	update *ranges accordingly.  Conditionalize the conversion into
	tbuf on tbuf being non-NULL.
	(cpp_interpret_string): Rename to...
	(cpp_interpret_string_1): ...this, adding params "loc_readers" and
	"out".  Use "to" to conditionalize the initialization and usage of
	"tbuf", such as running the converter.  If "loc_readers" is
	non-NULL, use the instances within it, reading location
	information from them, and passing them to convert_escape; likewise
	write to "out" if loc_readers is non-NULL.  Check for leading
	quote and issue an error if it is not present.  Update boundary
	check from "== limit" to ">= limit" to protect against erroneous
	location values to calls that are not parsing string literals.
	(cpp_interpret_string): Reimplement in terms to
	cpp_interpret_string_1.
	(noop_error_cb): New function.
	(cpp_interpret_string_ranges): New function.
	(cpp_string_location_reader::cpp_string_location_reader): New
	constructor.
	(cpp_string_location_reader::get_next): New method.
	* include/cpplib.h (class cpp_string_location_reader): New class.
	(class cpp_substring_ranges): New class.
	(cpp_interpret_string_ranges): New prototype.
	* internal.h (_cpp_valid_ucn): Add params "char_range" and
	"loc_reader".
	* lex.c (forms_identifier_p): Pass NULL for new params to
	_cpp_valid_ucn.

From-SVN: r239175

Fix PR tree-optimization/72810

gcc/ChangeLog:

	PR tree-optimization/72810
	* tree-vrp.c (simplify_switch_using_ranges): Avoid changing
	the type of the case labels when truncating.

gcc/testsuite/ChangeLog:

	PR tree-optimization/72810
	* gcc.dg/tree-ssa/vrp110.c: New test.

From-SVN: r239174

Fix PR Target/72819.

gcc/

	PR Target/72819
	* config/aarch64/aarch64.h (aarch64_fp16_type_node): Declare.
	(aarch64_fp16_ptr_type_node): Likewise.
	* config/aarch64/aarch64-simd-builtins.c
	(aarch64_fp16_ptr_type_node): Define.
	(aarch64_init_fp16_types): New, refactored out of...
	(aarch64_init_builtins): ...here, update to call
	aarch64_init_fp16_types.
	* config/aarch64/aarch64.c (aarch64_gimplify_va_arg_expr): Handle
	HFmode.
	(aapcs_vfp_sub_candidate): Likewise.

gcc/testsuite/

	PR Target/72819
	* gcc.target/aarch64/aapcs64/abitest-common.h: Define half-precision
	registers.
	* gcc.target/aarch64/aapcs64/abitest.S (dumpregs): Add assembly for
	saving the half-precision registers.
	* gcc.target/aarch64/aapcs64/func-ret-1.c: Test that an __fp16
	value is returned in h0.
	* gcc.target/aarch64/aapcs64/test_2.c: Check that __FP16 arguments
	are passed in FP/SIMD registers.
	* gcc.target/aarch64/aapcs64/test_27.c: New, test that __fp16 HFA
	passing works corrcetly.
	* gcc.target/aarch64/aapcs64/type-def.h (hfa_f16x1_t): New.
	(hfa_f16x2_t): Likewise.
	(hfa_f16x3_t): Likewise.
	* gcc.target/aarch64/aapcs64/va_arg-1.c: Check that __fp16 values
	are promoted to double and passed in a double register.
	* gcc.target/aarch64/aapcs64/va_arg-2.c: Check that __fp16 values
	are promoted to double and stacked.
	* gcc.target/aarch64/aapcs64/va_arg-4.c: Check stacking of HFA of
	__fp16 data types.
	* gcc.target/aarch64/aapcs64/va_arg-5.c: Likewise.
	* gcc.target/aarch64/aapcs64/va_arg-16.c: New, check HFAs of
	__fp16 first get passed in FP/SIMD registers, then stacked.

From-SVN: r239173