The change reverts the test deciding whether an initialization procedure
can be inherited from parent to derived type to the original
implementation, which allowed inheriting a null procedure.

This prevents the creation of another null initialization procedure for
the derived type, which in turn can avoid an artificial overloading
which can wreak havoc in the analysis of private declarations of a
package.

2018-12-03  Eric Botcazou  <ebotcazou@adacore.com>

gcc/ada/

	* exp_ch3.adb (Build_Record_Init_Proc): Inherit an
	initialization procedure if it is present, even if it is null.

gcc/testsuite/

	* gnat.dg/overload2.adb, gnat.dg/overload2_p.adb,
	gnat.dg/overload2_p.ads, gnat.dg/overload2_q.adb,
	gnat.dg/overload2_q.ads: New testcase.

From-SVN: r266753

This patch resolves the issue where the ATC Level of a task's first
Entry_Call slot corresponds to a task not currently making an entry
call. Consequently, the first slot is never used to record an entry
call. To resolve this, the ATC Level of a such a task is now one less
than the first index of the Entry_Call array (and as result, the ATC
level corresponding to a completed task is now two less than the first
index of this array).

To aid the maintainability of code using ATC levels new constants are
introduced to represent key ATC nesting levels and comments are
introduce for the ATC level definitions.

As a result of this change, the GNAT Extended Ravenscar Profile now
works with the full runtime. The restricted runtime had assumed that the
first Entry_Call slot would be the only slot used for entry calls and
would only initialise this slot (and
System.Tasking.Protected_Objects.Single_Entry was coded this way).
However, Extended Ravenscar uses the native implementation of
System.Tasking.Protected_Objects where this assumption doesn't hold
until the implementation of this patch. Aside from enabling an extra
nested level, this is main functional change of this patch.

The following should compile and execute quietly:

gprbuild -q main.adb
./main

-- main.adb

pragma Profile (GNAT_Extended_Ravenscar);
pragma Partition_Elaboration_Policy (Sequential);

with Tasks;
with GNAT.OS_Lib;
with Ada.Synchronous_Task_Control;

procedure Main is
   pragma Priority (30);
begin
   Ada.Synchronous_Task_Control.Suspend_Until_True (Tasks.A_SO);
   Ada.Synchronous_Task_Control.Suspend_Until_True (Tasks.B_SO);

   GNAT.OS_Lib.OS_Exit (0);
end Main;

-- tasks.ads

with Ada.Synchronous_Task_Control;

package Tasks is
   A_SO : Ada.Synchronous_Task_Control.Suspension_Object;
   B_SO : Ada.Synchronous_Task_Control.Suspension_Object;

   task A with Priority => 25;
   task B with Priority => 20;
end Tasks;

--  tasks.adb

with Obj;

package body Tasks is

   task body A is
   begin
      for J in 1 .. 5 loop
         Obj.PO.Wait;
      end loop;
      Ada.Synchronous_Task_Control.Set_True (Tasks.A_SO);
   end A;

   task body B is
   begin
      for J in 1 .. 5 loop
         Obj.PO.Put;
      end loop;
      Ada.Synchronous_Task_Control.Set_True (Tasks.B_SO);
   end B;
end Tasks;

-- obj.ads

package Obj is
   protected type PT is
      pragma Priority (30);
      entry Put;
      entry Wait;
   private
      Wait_Ready : Boolean := False;
      Put_Ready  : Boolean := True;
   end PT;

   PO : PT;
end Obj;

-- obj.adb

package body Obj is
   protected body PT is
      entry Put when Put_Ready is
      begin
         Wait_Ready := True;
         Put_Ready  := False;
      end Put;

      entry Wait when Wait_Ready is
      begin
         Wait_Ready := False;
         Put_Ready  := True;
      end Wait;
   end PT;
end Obj;

2018-12-03  Patrick Bernardi  <bernardi@adacore.com>

gcc/ada/

	* libgnarl/s-taskin.ads (ATC_Level_Base): Redefine to span from
	-1 to Max_ATC_Nesting so that 0 represents no ATC nesting and -1
	represented a completed task. To increase readability, new
	constants are introduced to represent key ATC nesting levels.
	Consequently, Level_No_Pending_Abort replaces
	ATC_Level_Infinity.  ATC_Level related definitions now
	documented.
	(Ada_Task_Control_Block): The default initialization of
	components ATC_Nesting_Level and Pending_ATC_Level now use new
	ATC_Level_Base constants.  Comments improved
	* libgnarl/s-taskin.adb (Initialize): Improve the initialisation
	of the first element of the Entry_Calls array to facilitate
	better maintenance.
	* libgnarl/s-taasde.ads: Update comment.
	* libgnarl/s-taasde.adb, libgnarl/s-taenca.adb,
	libgnarl/s-tasren.adb, libgnarl/s-tassta.adb,
	libgnarl/s-tasuti.ads, libgnarl/s-tasuti.adb: Use new
	ATC_Level_Base constants.
	* libgnarl/s-tarest.adb (Create_Restricted_Task): Improve the
	initialisation of the first element of the task's Entry_Calls
	array to facilitate better maintenance.
	* libgnarl/s-tasini.ads (Locked_Abort_To_Level): Update
	signature to accept ATC_Level_Base.
	* libgnarl/s-tasini.adb (Locked_Abort_To_Level): Update
	signature to accept ATC_Level_Base.  Use new ATC_Level_Base
	constants and only modify the aborting task's Entry_Calls array
	if any entry call is happening.
	* libgnarl/s-tposen.adb (Protected_Single_Entry_Call): Reference
	the first element of the task's Entry_Calls array via 'First
	attribute to facilitate better maintenance.

From-SVN: r266752

This fixes a couple of assertion failures when using -gnatde and -gnatdv
on a compiler built with assertions enabled.  No functional changes.

2018-12-03  Eric Botcazou  <ebotcazou@adacore.com>

gcc/ada/

	* einfo.adb (Write_Entity_Info): Don't take Scope of Standard
	package.
	* sem_ch4.adb (Remove_Abstract_Operations): Add missing blank
	lines to -gnatdv output.
	* sem_type.adb (Write_Overloads): Take Entity of entity names
	only.

From-SVN: r266751

2018-12-03  Hristian Kirtchev  <kirtchev@adacore.com>

gcc/ada/

	* checks.adb, exp_aggr.adb, exp_attr.adb, exp_ch3.adb,
	exp_util.adb, exp_util.ads, repinfo.adb, sem_attr.adb,
	sem_ch3.adb, sem_res.adb, sem_util.adb: Minor reformatting.

From-SVN: r266750

2018-12-03  Ed Schonberg  <schonberg@adacore.com>

gcc/ada/

	* sem_ch3.adb (Complete_Private_Subtype): Enhance comment.

From-SVN: r266749

Matching front-end bits to support Acc_Kernels, Acc_Parallel,
Acc_Loop and Acc_Data.

2018-12-03  Olivier Hainque  <hainque@adacore.com>

gcc/ada/

	* gcc-interface/lang.opt (fopenacc): New option for Ada.
	* gcc-interface/misc.c (gnat_handle_option): Handle it.
	* gcc-interface/trans.c (struct loop_info_d): Add OMP
	attributes.
	(Iterate_Acc_Clause_Arg, Acc_gnat_to_gnu): New functions,
	helpers for OpenACC pragmas processing in Pragma_to_gnu.
	(Acc_Var_to_gnu, Acc_Reduc_Var_to_gnu, Acc_Reduc_to_gnu):
	Likewise.
	(Acc_Size_Expr_to_gnu, Acc_Size_List_to_gnu): Likewise.
	(Pragma_Acc_Data_to_gnu): Likewise.
	(Pragma_to_gnu): Handle Pragma_Acc_Loop, Pragma_Acc_Data,
	Pragma_Acc_Kernels and Pragma_Acc_Parallel.
	(Acc_Loop_to_gnu, Regular_Loop_to_gnu): New functions. Helpers
	for ...
	(Loop_Statement_to_gnu): Rework to handle OpenACC loops.

From-SVN: r266748

Instead of 2 * LONG_TYPE_SIZE. POINTER_SIZE is believed to be the
correct base on more configurations than LONG_TYPE_SIZE and this
adjustment prevents the need for local patches to compensate on
configurations where the latter is inappropriate, for example
x86_64-mingw.

2018-12-03  Olivier Hainque  <hainque@adacore.com>

gcc/ada/

	* gcc-interface/targtyps.c (MALLOC_OBSERVABLE_ALIGNMENT): Set to
	2 * POINTER_SIZE.

From-SVN: r266747

This patch fixes a constraint check on a dependent expression of an
if-expression, when the context if given by a slice or the 'Range of
an array. The constraint check is applied if the context is constrained,
but the corresponding flag was not set for the index subtype generated
for a slice (explicit or implicit).

Executing:
   gprbuild -P test -q main
   ./main

Must yield:
   raised CONSTRAINT_ERROR : foo.ads:13 range check failed

----
with Types;
generic
   Buffer : in out Types.Buffer;
package Foo
is
   function Get (Pos : Natural) return Integer;

private
   function Get (Pos : Natural) return Integer
   is (Buffer ((if Pos in Buffer'Range then Pos else Buffer'First)));
end Foo;
----
with Foo;
with Types;
with Usefoo;

procedure Main is
   Z : Types.Buffer := (Natural'Last .. Natural'Last - 1 => 0);
   R : Integer;
begin
   Usefoo.Do_Something (Z, R);
end Main;
----
pragma SPARK_Mode (On);
pragma Profile (Ravenscar);
pragma Partition_Elaboration_Policy (Sequential);
----
project Test is
  package Compiler is
    for Default_Switches ("Ada") use ("-gnatws");
    for Local_Configuration_Pragmas use "test.adc";
  end Compiler;
end Test;
----
package Types
is
   subtype Natural_Without_Last is Natural range 1 .. Natural'Last - 1;
   type Buffer is array (Natural_Without_Last range <>) of Integer;

end Types;
----
with Foo;

package body Usefoo
is

   procedure Do_Something (B : in out Types.Buffer;
                           R : out Integer)
   is
      package F is new Foo (B (B'First .. B'First + B'Length / 2 - 1));
   begin
      R := F.Get (B'First + B'Length / 2 - 1);
   end Do_Something;

end Usefoo;
----
with Types;

package Usefoo
is

   procedure Do_Something (B : in out Types.Buffer;
                           R : out Integer)
                           with Pre => B'First > 0;

end Usefoo;

2018-12-03  Ed Schonberg  <schonberg@adacore.com>

gcc/ada/

	* sem_res.adb (Set_Slice_Subtype): The index type of a slice is
	constrained.

From-SVN: r266746

2018-12-03  Fritz Reese  <fritzoreese@gmail.com>
            Mark Eggleston <mark.eggleston@codethink.co.uk>

    PR fortran/87919

    gcc/fortran/ChangeLog:

	PR fortran/87919
	* options.c (SET_FLAG, SET_BITFLAG, SET_BITFLAG2): New macros.
	(set_dec_flags): Set/unset DEC and std flags according to value.
	(set_init_local_zero): New helper for -finit-local-zero flag group.
	(gfc_init_options): Fix disabling of init flags, array temporaries
	check, and dec flags when value is zero (from -fno-*).

    gcc/testsuite/ChangeLog:

	PR fortran/87919
	* gfortran.dg/array_temporaries_5.f90: New test.
	* gfortran.dg/dec_bitwise_ops_3.f90: Ditto.
	* gfortran.dg/dec_d_lines_3.f: Ditto.
	* gfortran.dg/dec_exp_4.f90: Ditto.
	* gfortran.dg/dec_exp_5.f90: Ditto.
	* gfortran.dg/dec_io_7.f90: Ditto.
	* gfortran.dg/dec_structure_24.f90: Ditto.
	* gfortran.dg/dec_structure_25.f90: Ditto.
	* gfortran.dg/dec_structure_26.f90: Ditto.
	* gfortran.dg/dec_structure_27.f90: Ditto.
	* gfortran.dg/dec_type_print_3.f90: Ditto.
	* gfortran.dg/init_flag_20.f90: Ditto.


Co-Authored-By: Mark Eggleston <mark.eggleston@codethink.co.uk>

From-SVN: r266745

h8300.md (low byte masking peepholes): Only accept nonimmediate_operand for the to-be-masked operand.

	* config/h8300/h8300.md (low byte masking peepholes): Only accept
	nonimmediate_operand for the to-be-masked operand.

From-SVN: r266744

	* gcc.dg/pr59963-2.c: Make testnames unique.
	* gcc.dg/tree-ssa/builtin-sprintf-warn-18.c: Likewise.

From-SVN: r266743

tree-ssa-sccvn.c (eliminate_dom_walker::eliminate_stmt): Only allow expected function-pointer cast re-instantiation.

2018-12-03  Richard Biener  <rguenther@suse.de>

	* tree-ssa-sccvn.c (eliminate_dom_walker::eliminate_stmt): Only
	allow expected function-pointer cast re-instantiation.

From-SVN: r266742

gcc/ChangeLog:

2018-12-03  Ilya Leoshkevich  <iii@linux.ibm.com>

	* common/config/s390/s390-common.c (s390_option_init_struct):
	Use section anchors by default.
	* config/s390/s390.c (s390_check_symref_alignment): Handle
	anchors.
	(TARGET_MAX_ANCHOR_OFFSET): Use short displacement.
	* output.h (assemble_align): Pass `align' as unsigned int, so
	that the value 0x80000000, which corresponds to `aligned(1 <<
	28)', would pass the `align > BITS_PER_UNIT' check.
	* varasm.c (assemble_align): Likewise.

gcc/testsuite/ChangeLog:

2018-12-03  Ilya Leoshkevich  <iii@linux.ibm.com>

	* gcc.target/s390/nodatarel-1.c: Expect .LANCHOR0@GOTENT instead
	of a@GOTENT.
	* gcc.target/s390/section-anchors.c: New test.
	* gcc.target/s390/section-anchors2.c: New test.
	* gcc.target/s390/section-anchors3.c: New test.

From-SVN: r266741

	gcc/
	* tree-pretty-print.c (dump_omp_clause): Make default case
	gcc_unreachable.

From-SVN: r266740

2018-12-03  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/88301
	* tree-vrp.c (register_edge_assert_for_2): Handle conversions
	that do not change the value by registering the same assert
	for the operand.

	* gcc.dg/tree-ssa/evrp13.c: New testcase.

From-SVN: r266739

re PR tree-optimization/71109 (gcc ICE at -O3 on valid code on x86_64-linux-gnu in "maybe_record_trace_start")

	PR tree-optimization/71109
	* gcc.c-torture/compile/pr71109.c: New test.

From-SVN: r266738

tree-vect-loop.c (vect_transform_loop): Properly compute upper bound for the epilogue when doing epilogue vectorization.

2018-12-03  Richard Biener  <rguenther@suse.de>

	* tree-vect-loop.c (vect_transform_loop): Properly compute
	upper bound for the epilogue when doing epilogue vectorization.

From-SVN: r266737

	PR target/88287
	* g++.target/aarch64/sve/vcond_1.C: Adjust for comparison
	canonicalization.

From-SVN: r266736

Consider the following RTL:

(insn (set (reg 65) (if_then_else (eq %cc 0) 1 0)))
(insn (parallel [(set %cc (compare (reg 65) 0)) (clobber %scratch)]))
(jump_insn (set %pc (if_then_else (ne %cc 0) (label_ref 23) %pc)))

Combine simplifies this into:

(note NOTE_INSN_DELETED)
(note NOTE_INSN_DELETED)
(jump_insn (set %pc (if_then_else (eq %cc 0) (label_ref 23) %pc)))

opening up the possibility to perform jump threading.

gcc/ChangeLog:

2018-12-03  Ilya Leoshkevich  <iii@linux.ibm.com>

	PR target/80080
	* cfgcleanup.c (class pass_postreload_jump): New pass.
	(pass_postreload_jump::execute): Likewise.
	(make_pass_postreload_jump): Likewise.
	* passes.def: Add pass_postreload_jump before
	pass_postreload_cse.
	* tree-pass.h (make_pass_postreload_jump): New pass.

gcc/testsuite/ChangeLog:

2018-12-03  Ilya Leoshkevich  <iii@linux.ibm.com>

	PR target/80080
	* gcc.target/s390/pr80080-4.c: New test.

From-SVN: r266734

2018-12-02  Andi Kleen  <ak@linux.intel.com>

	* gcc.target/i386/returninst1.c: Run on 64bit only.
	* gcc.target/i386/returninst2.c: Dito.
	* gcc.target/i386/returninst3.c: Dito.

From-SVN: r266733

From-SVN: r266732

	* config/i386/i386.c (inline_memory_move_cost): Correctly
	compute number of TFmode GPR moves.

From-SVN: r266729

	PR target/88278
	* config/i386/sse.md (*vec_concatv4sf_0, *vec_concatv4si_0): New insns.

	* gcc.target/i386/pr88278.c: New test.
	* gcc.target/i386/pr53759.c: Don't expect vmovlps insn, expect vmovq
	instead.
	* gcc.target/i386/pr53759-2.c: New test.

From-SVN: r266728

	* config/h8300/h8300.md (call, call_value): Drop mode from
	operand containing number of bytes pushed.
	(call_insn, call_value_insn): Use mode iterator for number
	of bytes pushed operand.  Make pattern name vary appropriately.

From-SVN: r266727

	* bb-reorer.c (find_rarely_executed_basic_blocks_and_crossin_edges):
	trust precise profiles.

From-SVN: r266726

As the static backtrace state pointer can be accessed from multiple
threads, use atomics to access it.

Regtested on x86_64-pc-linux-gnu.

libgfortran/ChangeLog:

2018-12-02  Janne Blomqvist  <jb@gcc.gnu.org>

	PR libfortran/88137
	* runtime/backtrace.c (show_backtrace): Use atomic load/store to
	access the static lbstate pointer.

From-SVN: r266724

	* tree-nested.c (convert_nonlocal_omp_clauses,
	convert_local_omp_clauses): Handle OMP_CLAUSE_IN_REDUCTION,
	OMP_CLAUSE_TASK_REDUCTION and OMP_CLAUSE__SIMT_ clauses.
	(convert_nonlocal_reference_stmt, convert_local_reference_stmt):
	Convert clauses for GIMPLE_OMP_TASKGROUP.

	* testsuite/libgomp.c/task-reduction-3.c: New test.

From-SVN: r266723

omp-low.c (check_omp_nesting_restrictions): Allow cancel or cancellation point with taskgroup clause inside of taskloop.

	* omp-low.c (check_omp_nesting_restrictions): Allow cancel or
	cancellation point with taskgroup clause inside of taskloop.  Consider
	a taskloop construct without nogroup clause as implicit taskgroup for
	diagnostics if cancel/cancellation point with taskgroup clause is
	closely nested inside of taskgroup region.

	* c-c++-common/gomp/cancel-1.c (f2): Add various taskloop related
	tests.

	* testsuite/libgomp.c-c++-common/cancel-taskgroup-4.c: New test.

From-SVN: r266722

	PR sanitizer/88291
	* asan.c (asan_clear_shadow): Move assert that len is multiple of 4
	to the start of the function.
	(asan_emit_stack_protection): When emitting clearing sequence for
	epilogue, align offset down to ASAN_RED_ZONE_SIZE granularity,
	add last_size_aligned which is last_size padded to multiples of
	ASAN_RED_ZONE_SIZE and emit asan_clear_shadow always on 4 byte
	boundaries.

	* c-c++-common/asan/pr88291.c: New test.

From-SVN: r266721

	PR c++/88258
	* parser.c (cp_parser_skip_to_closing_parenthesis_1,
	cp_parser_skip_to_end_of_statement,
	cp_parser_skip_to_end_of_block_or_statement,
	cp_parser_skip_to_closing_brace,
	cp_parser_skip_to_closing_square_bracket,
	cp_parser_skip_balanced_tokens): Don't treat CPP_PRAGMA_EOL specially
	if in_pragma is false.

	* g++.dg/gomp/pr88258.C: New test.

From-SVN: r266720

Backports Ddoc fix that is present in upstream, but did not make its way
into the C++ port of the D front-end implementation.

The old special types for C long, unsigned long, and long double have
also been removed as neither the compiler nor druntime bindings support
handling it anymore.

Commits merged from dmd.

	Backport Issue 14633: Fixed false DDoc warnings
	https://github.com/dlang/dmd/pull/9027

	Remove old support code for struct __c_long/ulong/long_double
	https://github.com/dlang/dmd/pull/9028

From-SVN: r266719

From-SVN: r266717

	PR c++/87523
	* g++.dg/cpp1y/lambda-generic-87523.C: New test.

From-SVN: r266714

Backported from upstream druntime master.

Reviewed-on: https://github.com/dlang/druntime/pull/2355

From-SVN: r266713

	PR c++/79629
	* g++.dg/other/error35.C: New test.

From-SVN: r266712

	PR c++/83856
	* g++.dg/cpp1y/lambda-generic-83856.C: New test.

From-SVN: r266711

	* parser.c (CP_PARSER_FLAGS_TYPENAME_OPTIONAL): New enumerator.
	(cp_parser_type_name): Remove declaration.
	(cp_parser_postfix_expression): Pass CP_PARSER_FLAGS_TYPENAME_OPTIONAL
	to cp_parser_type_id.
	(cp_parser_new_type_id): Pass CP_PARSER_FLAGS_TYPENAME_OPTIONAL to
	cp_parser_type_specifier_seq.
	(cp_parser_lambda_declarator_opt): Pass
	CP_PARSER_FLAGS_TYPENAME_OPTIONAL to
	cp_parser_parameter_declaration_clause.
	(cp_parser_condition): Pass CP_PARSER_FLAGS_NONE to
	cp_parser_declarator.
	(cp_parser_simple_declaration): Pass CP_PARSER_FLAGS_NONE to
	cp_parser_init_declarator.
	(cp_parser_conversion_type_id): Pass CP_PARSER_FLAGS_NONE to
	cp_parser_type_specifier_seq.
	(cp_parser_default_type_template_argument): Pass
	CP_PARSER_FLAGS_TYPENAME_OPTIONAL to cp_parser_type_id.
	(cp_parser_template_parameter): Pass CP_PARSER_FLAGS_TYPENAME_OPTIONAL
	to cp_parser_parameter_declaration.
	(cp_parser_explicit_instantiation): Pass CP_PARSER_FLAGS_NONE to
	cp_parser_declarator.
	(cp_parser_simple_type_specifier): Adjust call to cp_parser_type_name
	to relay if we should treat the typename keyword as optional.  Maybe
	call cp_parser_make_typename_type is parsing a template-id and it's
	not a TYPE_DECL.
	(cp_parser_type_name): Remove unused function.
	(cp_parser_enum_specifier): Pass to CP_PARSER_FLAGS_NONE
	cp_parser_type_specifier_seq.
	(cp_parser_alias_declaration): Pass CP_PARSER_FLAGS_TYPENAME_OPTIONAL
	to cp_parser_type_id.
	(cp_parser_init_declarator): New parameter.  Pass it down to
	cp_parser_declarator.
	(cp_parser_declarator): New parameter.  Pass CP_PARSER_FLAGS_NONE to
	cp_parser_declarator.  Pass the new parameter to
	cp_parser_direct_declarator.
	(cp_parser_direct_declarator): New parameter.  Pass it to
	cp_parser_parameter_declaration_clause and cp_parser_declarator.
	(cp_parser_declarator_id):
	(cp_parser_type_id_1): New parameter.  Pass it to
	cp_parser_type_specifier_seq.  Adjust call to cp_parser_declarator.
	(cp_parser_type_id): New parameter.  Pass it to cp_parser_type_id_1.
	(cp_parser_template_type_arg): Pass CP_PARSER_FLAGS_NONE to
	cp_parser_type_id_1.
	(cp_parser_trailing_type_id): Pass CP_PARSER_FLAGS_TYPENAME_OPTIONAL
	to cp_parser_type_id_1.
	(cp_parser_type_specifier_seq): New parameter.
	(function_being_declared_is_template_p):
	(cp_parser_parameter_declaration_clause): New parameter.  Pass it to
	cp_parser_parameter_declaration_list.
	(cp_parser_parameter_declaration_list): New parameter.  Pass it to
	cp_parser_parameter_declaration.
	(cp_parser_parameter_declaration): New parameter.  Pass it to
	cp_parser_decl_specifier_seq.  Pass CP_PARSER_FLAGS_NONE to
	cp_parser_declarator.
	(cp_parser_member_declaration): Adjust call to
	cp_parser_decl_specifier_seq to also include
	CP_PARSER_FLAGS_TYPENAME_OPTIONAL.  Pass
	CP_PARSER_FLAGS_TYPENAME_OPTIONAL to cp_parser_declarator.
	(cp_parser_exception_declaration): Pass CP_PARSER_FLAGS_NONE to
	cp_parser_type_specifier_seq and cp_parser_declarator.
	(cp_parser_requirement_parameter_list): Pass CP_PARSER_FLAGS_NONE to
	cp_parser_parameter_declaration_clause.
	(cp_parser_constructor_declarator_p): Resolve the TYPENAME_TYPE.
	(cp_parser_single_declaration): Pass CP_PARSER_FLAGS_TYPENAME_OPTIONAL
	to cp_parser_decl_specifier_seq and cp_parser_init_declarator.
	(cp_parser_cache_defarg): Pass CP_PARSER_FLAGS_NONE to
	cp_parser_declarator and cp_parser_parameter_declaration_list.
	(cp_parser_objc_method_tail_params_opt): Pass CP_PARSER_FLAGS_NONE to
	cp_parser_parameter_declaration.
	(cp_parser_objc_class_ivars): Pass CP_PARSER_FLAGS_NONE to
	cp_parser_declarator.
	(cp_parser_objc_try_catch_finally_statement): Pass CP_PARSER_FLAGS_NONE
	to cp_parser_parameter_declaration
	(cp_parser_objc_struct_declaration): Pass CP_PARSER_FLAGS_NONE to
	cp_parser_declarator.
	(cp_parser_omp_for_loop_init): Pass CP_PARSER_FLAGS_NONE to
	cp_parser_declarator and cp_parser_type_specifier_seq.

	* g++.dg/cpp0x/alias-decl-43.C: Adjust dg-error.
	* g++.dg/cpp0x/decltype67.C: Only expect error in c++17_down.
	* g++.dg/cpp1z/typename1.C: New test.
	* g++.dg/cpp2a/typename1.C: New test.
	* g++.dg/cpp2a/typename10.C: New test.
	* g++.dg/cpp2a/typename11.C: New test.
	* g++.dg/cpp2a/typename2.C: New test.
	* g++.dg/cpp2a/typename3.C: New test.
	* g++.dg/cpp2a/typename4.C: New test.
	* g++.dg/cpp2a/typename5.C: New test.
	* g++.dg/cpp2a/typename6.C: New test.
	* g++.dg/cpp2a/typename7.C: New test.
	* g++.dg/cpp2a/typename8.C: New test.
	* g++.dg/cpp2a/typename9.C: New test.
	* g++.dg/diagnostic/missing-typename.C: Only run the test in
	c++17_down.
	* g++.dg/other/crash-9.C: Add template disambiguator.
	* g++.dg/other/nontype-1.C: Only expect error in c++17_down.
	* g++.dg/parse/crash13.C: Likewise.
	* g++.dg/parse/error36.C: Likewise.
	* g++.dg/parse/no-typename1.C: Likewise.
	* g++.dg/parse/typedef2.C: Likewise.
	* g++.dg/parse/typename11.C: Likewise.
	* g++.dg/template/crash48.C: Adjust dg-error.
	* g++.dg/template/dependent-name5.C: Only expect error in c++17_down.
	Add dg-error.
	* g++.dg/template/error29.C: Only expect error in c++17_down.
	* g++.dg/template/nested5.C: Add template disambiguator.
	* g++.dg/template/pr84789.C: Only expect error in c++17_down.
	* g++.dg/template/static30.C: Add dg-error.
	* g++.dg/template/typedef6.C: Adjust dg-error.
	* g++.dg/template/typename3.C: Only expect error in c++17_down.

From-SVN: r266710

From-SVN: r266709

	PR sanitizer/88289
	* asan.c (asan_redzone_buffer::flush_redzone_payload): Fix up
	an off-by-one for BYTES_BIG_ENDIAN.

From-SVN: r266708

	PR target/54589
	* combine.c (find_split_point): For invalid memory address
	nonobj + obj + const, if reg + obj + const is valid addressing
	mode, split at nonobj.  Use if rather than else if for the
	fallback.  Comment fixes.

	* gcc.target/i386/pr54589.c: New test.

From-SVN: r266707