This replaces the "wh" constraint by "d", with isa "p8v".


	* config/rs6000/constraints.md (define_register_constraint "wh"):
	Delete.
	* config/rs6000/rs6000.h (enum r6000_reg_class_enum): Delete
	RS6000_CONSTRAINT_wh.
	* config/rs6000/rs6000.c (rs6000_debug_reg_global): Adjust.
	(rs6000_init_hard_regno_mode_ok): Adjust.
	* config/rs6000/rs6000.md: Replace "wh" constraint by "wa" with "p8v".
	* doc/md.texi (Machine Constraints): Adjust.

From-SVN: r271483

	* g++.dg/DRs/dr1940.C: New test.

From-SVN: r271482

	PR target/90547
	* config/i386/i386.md (anddi_1 to andsi_1_zext splitter):
	Avoid calling gen_lowpart with CONST operand.

testsuite/ChangeLog:

	PR target/90547
	* gcc.target/i386/pr90547.c: New test.

From-SVN: r271479

Gimple jump threading does not duplicate forwarder blocks that might
be present before or after the second copied block.  This silently
drops debug binds and markers that might be present in them.  This
patch attempts to preserve them.

For blocks after either copied block, we attempt to append debug stmts
to the copied block, if it does not end with a block-ending stmt.
Failing that, for blocks between both copied blocks, we prepend its
debug stmts to the copy of the second block.

If everything fails, we still drop debug stmts on the floor, though
preexisting code consolidates debug binds in the block that threading
flows into, so only markers are really lost.  We can't do much better
than that without conditional binds and markers, or debug stmts in
edges, or somesuch.

If we append debug stmts to a reusable template block, we copy it
after splitting out the debug stmts, and before putting them back.


for  gcc/ChangeLog

	* tree-ssa-threadupdate.c (struct ssa_local_info_t): Add
	field template_last_to_copy.
	(ssa_create_duplicates): Set it, and use it.  Attempt to
	preserve more debug stmts.

From-SVN: r271477

	* gcc.dg/Wattribute-alias.c: Pass emtpy arg to dg-require-ifunc.

	* gcc.c-torture/execute/20030125-1.c: Pass emtpy arg to dg-require-weak.

	* gcc.dg/torture/ftrapv-2.c: Pass empty arg to dg-require-fork.

	* gcc.target/i386/pr84723-1.c: Remove dg-require-ifunc.
	* gcc.target/i386/pr84723-2.c: Likewise.
	* gcc.target/i386/pr84723-3.c: Likewise.
	* gcc.target/i386/pr84723-4.c: Likewise.
	* gcc.target/i386/pr84723-5.c: Likewise.

From-SVN: r271476

These tests require specific scan-asms in some cases because
of the different codegen for Dawin.  Added some explanations
too.

2019-05-21  Iain Sandoe  <iain@sandoe.co.uk>

	PR testsuite/67958
	* gcc.target/i386/pr32219-1.c: Adjust scan-asms for Darwin, comment
	the differences.
	* gcc.target/i386/pr32219-2.c: Likewise.
	* gcc.target/i386/pr32219-3.c: Likewise.
	* gcc.target/i386/pr32219-4.c: Likewise.
	* gcc.target/i386/pr32219-5.c: Likewise.
	* gcc.target/i386/pr32219-6.c: Likewise.
	* gcc.target/i386/pr32219-7.c: Likewise.
	* gcc.target/i386/pr32219-8.c: Likewise.

From-SVN: r271475

This is a testcase failing because one part of the codegen is
(correctly) generating the scan-asm-not signature.

Fixed by altering the build options.

gcc/testsuite/

2019-05-18  Iain Sandoe  <iain@sandoe.co.uk>

	PR target/63891
	* gcc.dg/darwin-weakimport-3.c: Adjust options and explain
	the reasons.

From-SVN: r271474

	* config/i386/sse.md (VF1_AVX2): New mode iterator.
	(signbit<mode>2): New expander

testsuite/ChangeLog:

	* gcc.target/i386/vect-signbitf.c: New test.

From-SVN: r271473

	PR bootstrap/87338
	* dwarf2out.c (dwarf2out_inline_entry): Use ASM_OUTPUT_DEBUG_LABEL
	instead of ASM_GENERATE_INTERNAL_LABEL and ASM_OUTPUT_LABEL.

From-SVN: r271472

https://gcc.gnu.org/ml/gcc-patches/2019-05/msg01411.html
	* name-lookup.c (do_nonmember_using_decl): Drop INSERT_P
	parameter.  Document.
	(finish_nonmember_using_decl): Adjust do_nonmember_using_decl
	calls.  Remove stray FIXME comment.

From-SVN: r271471

	* config/i386/cpuid.h (__cpuid): For 32bit targets, zero
	%ebx and %ecx bafore calling cpuid with leaf 1 or
	non-constant leaf argument.

From-SVN: r271469

2019-05-21  Janne Blomqvist  <jb@gcc.gnu.org>

	PR libfortran/90038
	* intrinsic.texi (EXECUTE_COMMAND_LINE): Explain new
	wait=.false. implementation.

From-SVN: r271468

https://gcc.gnu.org/ml/gcc-patches/2019-05/msg01396.html
	gcc/cp/
	* name-lookup.h (struct cp_binding_level): Drop usings field.
	(finish_namespace_using_decl, finish_local_using_decl): Replace with ...
	(finish_nonmember_using_decl): ... this.
	* name-lookup.c (push_using_decl_1, push_using_decl):
	(do_nonmember_using_decl): ... here.  Add INSERT_P arg.  Reimplement.
	(validate_nonmember_using_decl, finish_namespace_using_decl)
	(finish_local_using_decl): Replace with ...
	(finish_nonmember_using_decl): ... this.  Drop DECL parm.
	* parser.c (cp_parser_using_declaration): Don't do lookup here.
	* pt.c (tsubst_expr): Do not do using decl lookup here.

	gcc/testsuite/
	* g++.dg/lookup/using53.C: Adjust diagnostic.

	libcc1/
	* libcp1plugin.cc (plugin_add_using_decl): Use
	finish_nonmember_using_decl.

From-SVN: r271467

	PR libstdc++/90252
	* testsuite/lib/libstdc++.exp (check_effective_target_tbb-backend):
	Use "additional_flags" to pass -ltbb to v3_target_compile command.
	Use check_v3_target_prop_cached to cache the result of the test.

From-SVN: r271466

	* doc/xml/manual/shared_ptr.xml: Fix names of lock policy constants.

From-SVN: r271465

I figure a tweak to register_move_cost is better than sprinkling ?s
in instruction operand alternatives.

	PR target/90545
	* config/rs6000/rs6000.c (rs6000_register_move_cost): Increase
	power9 direct move cost.
	* testsuite/gcc.target/powerpc/fold-vec-splats-floatdouble.c:
	Correct comments and rename functions to suit parameters.

From-SVN: r271464

2019-05-21  Richard Biener  <rguenther@suse.de>

	PR middle-end/90510
	* fold-const.c (fold_read_from_vector): New function.
	* fold-const.h (fold_read_from_vector): Declare.
	* match.pd (VEC_PERM_EXPR): Build BIT_INSERT_EXPRs for
	single-element insert permutations.  Canonicalize selector
	further and fix issue with last commit.

	* gcc.target/i386/pr90510.c: New testcase.

From-SVN: r271463

2019-05-21  Martin Liska  <mliska@suse.cz>

	* gcc.target/i386/pr90500-1.c: Add missing '""'.
	* gcc.target/i386/pr90500-2.c: Likewise.

From-SVN: r271462

gcc/ChangeLog:

        * tree-cfg.h (split_critical_edges): Add for_edge_insertion_p
	parameter with default value false to declaration.
        (split_edges_for_insertion): New inline function.  Wrapper for
	split_critical_edges with for_edge_insertion_p = true.
        * tree-cfg.c (split_critical_edges): Don't split non-critical
	edges if for_edge_insertion_p is false.  Fix whitespace.
        * tree-ssa-pre.c (pass_pre::execute): Call
	split_edges_for_insertion instead of split_critical_edges.
        * gcc/tree-ssa-tail-merge.c (tail_merge_optimize): Ditto.
        * gcc/tree-ssa-sink.c (pass_sink_code::execute): Ditto.
	(pass_data_sink_code): Update function name in the comment.

From-SVN: r271461

	* tree-ssa-uninit.c (value_sat_pred_p): This new function is a wrapper
        around is_value_included_in that knows how to handle BIT_AND_EXPR.
        (is_pred_expr_subset_of): Use the new function.  Handle more cases where
        code1 == EQ_EXPR and where code1 == BIT_AND_EXPR and thus fix some false
        positives.

testsuite/
        * gcc.dg/uninit-28-gimple.c: New test.
        * gcc.dg/uninit-29-gimple.c: New test.
        * gcc.dg/uninit-30-gimple.c: New test.
        * gcc.dg/uninit-31-gimple.c: New test.

From-SVN: r271460

Due to the python 3 conversion, files should be opened in text mode,
matching stdin/stdout.

2019-05-21  Janne Blomqvist  <jb@gcc.gnu.org>

	* mklog: Open files in text mode.

From-SVN: r271459

2019-05-21  Martin Liska  <mliska@suse.cz>

	* gcc.dg/pr90263.c: Add -O2.

From-SVN: r271458

c-family/
	* c-ada-spec.h (enum cpp_operation): Add IS_ASSIGNMENT_OPERATOR.
	* c-ada-spec.c (print_assignment_operator): New function.
	(dump_ada_declaration) <FUNCTION_DECL>: Call it do dump explicit copy
	assignment operators declared as methods and filter out the others.
cp/
	* decl2.c (cpp_check) <IS_ASSIGNMENT_OPERATOR>: New case.

From-SVN: r271457

Upstream will drop support for Python 2.x on January 1, 2020.  This
patch converts the contrib/mklog script to Python 3.  The process for
the conversion was as follows.

- Use the futurize tool (https://python-future.org ) to apply the
  print_with_import, except, and dict transformations.

- Remove the "from __future__ import print_function".

- Change the shebang line to search for python3 in the environment.

- Modify the run() function to return a str instead of bytes.

- Update the copyright year.

contrib/ChangeLog:

2019-05-21  Janne Blomqvist  <jb@gcc.gnu.org>

        * mklog: Convert to Python 3.

From-SVN: r271456

2019-05-21  Martin Liska  <mliska@suse.cz>

	* config/rs6000/driver-rs6000.c (elf_platform): Do not use
	an extra newline.
	* config/rs6000/rs6000-c.c (rs6000_pragma_longcal): Wrap pragma in %<%>.
	(altivec_resolve_overloaded_builtin): Likewise for vec_lvsl and
	vec_lvsr.
	* config/rs6000/rs6000.c (rs6000_option_override_internal):
	Quote a C type.
	(rs6000_function_arg): Likewise.
	(rs6000_expand_set_fpscr_drn_builtin): Remove trailing dot.
	(rs6000_expand_ternop_builtin): Use interval syntax.
	(get_element_number): Likewise.
	(altivec_expand_builtin): Likewise.
	(rs6000_get_function_versions_dispatcher): Quote target_clones.

Fix test-suite.
2019-05-21  Martin Liska  <mliska@suse.cz>

	* gcc.target/powerpc/ppc64-abi-warn-1.c: Wrap a type.
	* gcc.target/powerpc/pr80315-1.c: Use new interval format.
	* gcc.target/powerpc/pr80315-2.c: Likewise.
	* gcc.target/powerpc/pr80315-3.c: Likewise.
	* gcc.target/powerpc/pr80315-4.c: Likewise.
	* gcc.target/powerpc/warn-lvsl-lvsr.c: Wrap builtin names.

From-SVN: r271455

2019-05-21  Martin Liska  <mliska@suse.cz>

	PR testsuite/90551
	* pr90263.c: Move from gcc.c-torture/compile
	into gcc.dg.

From-SVN: r271454

	    PR libstdc++/90252
	    * testsuite/lib/libstdc++.exp (check_effective_target_tbb-backend):
	    Changed v3_target_compile check from preprocess to executable.
	    Added "-ltbb" to v3_target_compile flags.

From-SVN: r271451

      * testsuite/lib/libstdc++.exp (check_effective_target_tbb-backend):
      Add check for Thread Building Blocks 2018 or later.

From-SVN: r271450

From-SVN: r271449

	PR testsuite/90503
	* gcc.target/i386/pr22076.c (dg-options): Add -mno-sse2.
	Remove -flax-vector-conversions.
	(dg-additional-options): Remove.
	(test): Change to void.  Declare m0 and m1 as __m64 and
	cast initializer in a proper way.  Do not return result.
	(dg-final): Scan for 2 instances of movq.

From-SVN: r271445

From-SVN: r271443

	PR testsuite/90503
	* gcc.target/i386/pr22076.c (dg-options): Add -mno-sse2.

From-SVN: r271442

	* gfortran.texi: Remove reference to the ASSIGN statement, capitalise
	complex, state that padding is with spaces and modify the Hollerith
	constant examples.

From-SVN: r271441

	PR c++/59813
	PR target/90418
	* function.h (struct function): Add calls_eh_return member.
	* gimplify.c (gimplify_call_expr): Set cfun->calls_eh_return when
	gimplifying __builtin_eh_return call.
	* tree-inline.c (initialize_cfun): Copy calls_eh_return from src_cfun
	to cfun.
	(expand_call_inline): Or in src_cfun->calls_eh_return into
	dst_cfun->calls_eh_return.
	* tree-tailcall.c (suitable_for_tail_call_opt_p): Return false if
	cfun->calls_eh_return.
	* lto-streamer-in.c (input_struct_function_base): Read calls_eh_return.
	* lto-streamer-out.c (output_struct_function_base): Write
	calls_eh_return.

From-SVN: r271440

	PR libgomp/90527
	* alloc.c (_GNU_SOURCE): Define.

From-SVN: r271438

Only include the Networking headers for targets with Gthreads, so that
the uses of std::mutex and std::condition_variable don't cause errors.

	* testsuite/experimental/names.cc: Only include Networking TS headers
	on targets with the necessary Gthreads support.

From-SVN: r271437

	PR c++/85679
	* tree.c (trivially_copyable_p): Don't check CP_TYPE_VOLATILE_P for
	scalar types.

	* g++.dg/ext/is_trivially_constructible1.C: Change the expected result
	for volatile int.
	* g++.dg/ext/is_trivially_copyable.C: New test.

	* testsuite/20_util/is_trivially_copyable/value.cc: Change the expected
	result for volatile int.

From-SVN: r271435

	* name-lookup.c (finish_using_directive): Don't issue inform() if the
	warning didn't trigger.  Add quoting.  Tweak the inform message.

	* g++.dg/lookup/strong-using2.C: New test.

From-SVN: r271432

	* pt.c (convert_template_argument): Add a diagnostic for the
	[temp.arg]/2 ambiguity case.

	* g++.dg/cpp2a/nontype-class17.C: New test.

From-SVN: r271431

From-SVN: r271430