* pt.c (do_auto_deduction): Don't try to deduce from null type.

From-SVN: r245543

	PR tree-optimization/79327
	* gimple-ssa-sprintf.c (format_integer): Remove likely_adjust
	variable, its initialization and use.

From-SVN: r245542

	* common/config/i386/i386-common.c (OPTION_MASK_ISA_RDPID_SET): New.
	(OPTION_MASK_ISA_PKU_UNSET): New.
	(ix86_handle_option): Handle -mrdpid.
	* config/i386/cpuid.h (bit_RDPID): New.
	* config/i386/driver-i386.c (host_detect_local_cpu):
	Detect RDPID feature.
	* config/i386/i386-builtin.def (__builtin_ia32_rdpid): New.
	* config/i386/i386-c.c (ix86_target_macros_internal):
	Handle RDPID flag.
	* config/i386/i386.c (ix86_target_string): Add -mrdpid to isa2_opts.
	(ix86_valid_target_attribute_inner_p): Add "rdpid".
	(ix86_expand_builtin): Handle IX86_BUILTIN_RDPID.
	* config/i386/i386.h (TARGET_RDPID, TARGET_RDPID_P): New.
	* config/i386/i386.md (define_insn "rdpid"): New.
	* config/i386/i386.opt Add -mrdpid.
	* config/i386/immintrin.h (_rdpid_u32): New.

testsuite/ChangeLog:

	* gcc.target/i386/rdpid.c New test.
	* gcc.target/i386/sse-12.c: Add -mrdpid.
	* gcc.target/i386/sse-13.c: Ditto.
	* gcc.target/i386/sse-14.c: Ditto.
	* gcc.target/i386/sse-22.c: Ditto.
	* gcc.target/i386/sse-23.c: Ditto.
	* g++.dg/other/i386-2.C: Ditto.
	* g++.dg/other/i386-3.C: Ditto.

From-SVN: r245540

	* call.c (build_over_call): Conversion to a reference prevents copy
	elision.

From-SVN: r245538

2017-02-17  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/79541
	* lra-constraints.c (curr_insn_transform): Remove wrong asm insn
	instead of transforming it into USE.

From-SVN: r245536

    
    Along with the update this fixes a problem that was always present but
    only showed up with the new reflect test.  When a program used a
    **unsafe.Pointer and stored the value in an interface type, the
    generated type descriptor pointed to the GC data for *unsafe.Pointer.
    It did that by name, but we were not generating a variable with the
    right name.
    
    Reviewed-on: https://go-review.googlesource.com/37144

From-SVN: r245535

A cast from float to double should turn a signaling NaN into a quiet
NaN, if using -fsignaling-nans.  On PowerPC single-precision floats are
stored as double precision in registers, and so, the cast normally does
nothing.  This causes gcc.dg/pr59833.c to fail (it does such a cast,
and expects a quiet NaN as output).

This patch adds a new pattern, used with -fsignaling-nans in effect,
that creates an frsp instruction (or xsrsp) in this case.  Since the
input already is SFmode, that instruction turns signaling NaNs into
quiet NaNs and does nothing more.


	* config/rs6000/rs6000.md (extendsfdf2): Remove default arguments.
	If HONOR_SNANS (SFmode) force the input to a register.
	(*extendsfdf2_fpr): Add !HONOR_SNANS (SFmode) condition.
	(*extendsfdf2_snan): New pattern, used when using SNaNs; it generates
	an frsp or similar insn.

From-SVN: r245534

The testcases pr59833.c and pr61441.c check whether signaling NaNs as
input to some operation result in quiet NaNs.  Without -fsignaling-nans
this is not guaranteed to happen.  So, this patch add this option to
these testcases.


	* gcc.dg/pr59833.c: Add -fsignaling-nans to options.
	* gcc.dg/pr61441.c: Ditto.

From-SVN: r245533

2017-02-17  Martin Liska  <mliska@suse.cz>

	PR rtl-optimization/79577
	* params.def (selsched-max-sched-times): Increase minimum to 1.

From-SVN: r245532

2017-02-17  Martin Liska  <mliska@suse.cz>

	PR rtl-optimization/79574
	* gcc.dg/pr79574.c: New test.
2017-02-17  Martin Liska  <mliska@suse.cz>

	PR rtl-optimization/79574
	* gcse.c (want_to_gcse_p): Prevent integer overflow.

From-SVN: r245531

2017-02-17  Martin Liska  <mliska@suse.cz>

	PR tree-optimization/79529
	* tree-ssa-loop-unswitch.c (is_maybe_undefined): Use
	ssa_defined_default_def_p to handle cases which are implicitly
	defined.
	* tree-ssa.c (ssa_defined_default_def_p): New function.
	(ssa_undefined_value_p): Use ssa_defined_default_def_p to handle cases
	which are implicitly defined.
	* tree-ssa.h (ssa_defined_default_def_p): Declare.

From-SVN: r245530

2017-02-17  Richard Biener  <rguenther@suse.de>

	PR middle-end/79576
	* params.def (max-ssa-name-query-depth): Limit to 10.

From-SVN: r245529

re PR inline-asm/79552 (Wrong code generation due to -fschedule-insns, with __restrict__ and inline asm)

2017-02-17  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/79552
	* tree-ssa-structalias.c (visit_loadstore): Properly verify
	default defs.

From-SVN: r245528

re PR bootstrap/79567 (Compiler-warning "unknown escape sequence '\x'" about genmatch-generated C-files on mingw-host)

2017-02-17  Richard Biener  <rguenther@suse.de>

	PR bootstrap/79567
	* genmatch.c (output_line_directive): Handle DIR_SEPARATOR_2.

From-SVN: r245527

	PR middle-end/79536
	* fold-const.c (fold_negate_expr_1): Renamed from fold_negate_expr.
	(fold_negate_expr): New wrapper.

	* gcc.dg/torture/pr79536.c: New test.

From-SVN: r245526

2017-02-16  Sandra Loosemore  <sandra@codesourcery.com>

	gcc/
	* doc/invoke.texi (C++ Dialect Options) [-Wno-non-template-friend]: 
	Correct terminology and de-emphasize pre-standard behavior.

From-SVN: r245525

From-SVN: r245524

2017-02-16  Alan Modra  <amodra@gmail.com>

	PR rtl-optimization/79286
	* ira.c (def_dominates_uses): New function.
	(update_equiv_regs): Don't create an equivalence for insns that
	may trap where the register def does not dominate the use.

	* gcc.c-torture/execute/pr79286.c: New.

From-SVN: r245521

2017-02-16  Andreas Tobler  <andreast@gcc.gnu.org>

    PR sanitizer/79562
    * sanitizer_common/sanitizer_platform_limits_posix.cc: Cherry-pick
    upstream r294806.

From-SVN: r245520

	* pt.c (apply_late_template_attributes): Do apply non-dependent
	attributes to types.

Co-Authored-By: Jason Merrill <jason@redhat.com>

From-SVN: r245516

From-SVN: r245515

re PR rtl-optimization/78127 (AArch64 internal compiler error: in lra_eliminate, at lra-eliminations.c:1440)

2017-02-16  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/78127
	* lra.c (lra): Call lra_eliminate before finish the loop after
	lra_constraint.

From-SVN: r245514

	* exgettext (BUGURL): Introduce, and use instead of four 
	hardcoded instances.

From-SVN: r245513

	* constexpr.c (cxx_eval_store_expression): The object we're
	initializing is outside the constant-expression.

From-SVN: r245511

	* decl.c (poplevel): Remove undeduced auto decls.

From-SVN: r245510

	* config/aarch64/value-unwind.h: New file.
	* config.host (aarch64*-*-*): Add aarch64/value-unwind.h
	to tm_file.

From-SVN: r245508

	* doc/xml/manual/policy_data_structures.xml: Simplify and
	standardize references to boost.org.
	* doc/xml/manual/policy_data_structures_biblio.xml: Ditto.
	* doc/xml/manual/shared_ptr.xml: Ditto.

From-SVN: r245507

	PR libstdc++/60936
	* src/c++11/snprintf_lite.cc (__concat_size_t): Calculate length
	written to buffer, not length remaining in buffer.

From-SVN: r245505

	PR c++/79512
c/
	* c-parser.c (c_parser_omp_target): For -fopenmp-simd
	ignore #pragma omp target even when not followed by identifier.
cp/
	* parser.c (cp_parser_omp_target): For -fopenmp-simd
	ignore #pragma omp target even when not followed by identifier.
testsuite/
	* c-c++-common/gomp/pr79512.c: New test.

From-SVN: r245504

2017-02-16  Richard Biener  <rguenther@suse.de>

	* graphite.h: Do not include isl/isl_val_gmp.h, instead include
	isl/isl_val.h.
	* graphite-isl-ast-to-gimple.c (gmp_cst_to_tree): Remove.
	(gcc_expression_from_isl_expr_int): Use generic isl_val interface.
	* graphite-sese-to-poly.c: Do not include isl/isl_val_gmp.h.
	(isl_val_int_from_wi): New function.
	(extract_affine_gmp): Rename to ...
	(extract_affine_wi): ... this, take a widest_int.
	(extract_affine_int): Just wrap extract_affine_wi.
	(add_param_constraints): Use isl_val_int_from_wi.
	(add_loop_constraints): Likewise, and extract_affine_wi.

From-SVN: r245501

	PR middle-end/79521
	* ira-costs.c (scan_one_insn): Check have_regs_of_mode before calling
	ira_init_register_move_cost_if_necessary.

From-SVN: r245500

From-SVN: r245499

From-SVN: r245496

	* class.c (build_clone): Also omit parms from TYPE_ARG_TYPES.
	(adjust_clone_args): Adjust.
	(add_method): Remember omitted parms.
	* call.c (add_function_candidate): Likewise.
	* mangle.c (write_method_parms): Likewise.
	* method.c (ctor_omit_inherited_parms): Return false if there are no
	parms to omit.

Co-Authored-By: Jakub Jelinek <jakub@redhat.com>

From-SVN: r245495

gcc/cp/ChangeLog:

	PR c++/79363
	* init.c (maybe_reject_flexarray_init): New function.
	(perform_member_init): Call it.

gcc/testsuite/ChangeLog:

	PR c++/79363
	* g++.dg/ext/flexary12.C: Adjust.
	* g++.dg/ext/flexary20.C: Same.
	* g++.dg/ext/flexary21.C: Same.
	* g++.dg/ext/flexary22.C: New test.

From-SVN: r245494

2017-02-15  Martin Sebor  <msebor@redhat.com>

	PR middle-end/32003
	* doc/invoke.texi (-fdump-final-insns): Replace option accidentally
	removed in a prior commit.

From-SVN: r245493

	PR tree-optimization/79347
	* tree-vect-loop-manip.c (vect_do_peeling): Maintain profile
	counters during peeling.

	gcc/testsuite
	* gcc.dg/vect/pr79347.c: New test.

From-SVN: r245490

re PR c++/79301 (With -Werror=pedantic outside C++17 mode, __has_cpp_attribute(fallthrough) is nonzero but [[fallthrough]] fails)

	PR c++/79301
	* parser.c (cp_parser_std_attribute): Don't pedwarn about
	[[deprecated]] with -std=c++11 and [[fallthrough]] with
	-std=c++11 and -std=c++14.

	* g++.dg/cpp1y/feat-cxx11-neg.C: Remove (with pedwarn) from
	[[deprecated]] comment.
	* g++.dg/cpp1y/feat-cxx98-neg.C: Likewise.
	* g++.dg/cpp1y/feat-cxx11.C: Likewise.
	* g++.dg/cpp1y/attr-deprecated-neg.C: Don't expect warnings for
	[[deprecated]] in -std=c++11.
	* g++.dg/cpp0x/fallthrough2.C: Don't expect warnings for
	[[fallthrough]] in -std=c++11 and -std=c++14.

From-SVN: r245489

	PR c++/79288
	* decl.c (grokdeclarator): For static data members, handle thread_p
	only after handling inline.

	* g++.dg/tls/pr79288.C: New test.

From-SVN: r245488

	* testsuite/libgomp.c/pr48591.c: Enable on all __float128
	targets.
	Add __float128 options.

From-SVN: r245486