gcc/testsuite/ChangeLog:
	PR c/84852
	* gcc.dg/fixits-pr84852-1.c: Fix filename in dg-regexp.

From-SVN: r258559

I was a bit over-enthusiastic, we still support xilinxfp.


	* config/rs6000/rs6000.c (abi_v4_pass_in_fpr): Add back the
	TARGET_DOUBLE_FLOAT and TARGET_SINGLE_FLOAT conditions on the DFmode
	resp. SFmode cases.

From-SVN: r258557

re PR c/84873 (ICE: verify_ssa failed (error: definition in block 3 does not dominate use in block 4))

2018-03-15  Richard Biener  <rguenther@suse.de>

	PR c/84873
	* c-gimplify.c (c_gimplify_expr): Do not fold expressions.

	* c-c++-common/pr84873.c: New testcase.

From-SVN: r258556

2018-03-15  Tamar Christina  <tamar.christina@arm.com>

	PR target/84711
	* config/arm/arm.c (arm_can_change_mode_class): Use GET_MODE_UNIT_SIZE
	instead of GET_MODE_SIZE when comparing Units.
	
gcc/testsuite/
2018-03-15  Tamar Christina  <tamar.christina@arm.com>

	PR target/84711
	* gcc.target/arm/big-endian-subreg.c: New.

From-SVN: r258554

2018-03-15  Vladimir Mezentsev  <vladimir.mezentsev@oracle.com>

        PR target/68256
        * varasm.c (hash_section): Return an unchangeble hash value
        * config/aarch64/aarch64.c (aarch64_use_blocks_for_constant_p):
        Return !aarch64_can_use_per_function_literal_pools_p ().

From-SVN: r258553

	PR target/84860
	* optabs.c (emit_conditional_move): Pass address of cmode's copy
	rather than address of cmode as last argument to prepare_cmp_insn.

	* gcc.c-torture/compile/pr84860.c: New test.

From-SVN: r258552

gcc/
	* config/i386/i386.c (F_AVX512VBMI2, F_GFNI, F_VPCLMULQDQ,
	F_AVX512VNNI, F_AVX512BITALG): New.

gcc/testsuite/
	* gcc.target/i386/builtin_target.c (check_intel_cpu_model): Add
	cannonlake.
	(check_features): Add avx512vbmi2, gfni, vpclmulqdq, avx512vnni,
	avx512bitalg.

libgcc/
	* config/i386/cpuinfo.c (get_available_features): Add
	FEATURE_AVX512VBMI2, FEATURE_GFNI, FEATURE_VPCLMULQDQ,
	FEATURE_AVX512VNNI, FEATURE_AVX512BITALG.
	* config/i386/cpuinfo.h (processor_features) Add
	FEATURE_AVX512VBMI2, FEATURE_GFNI, FEATURE_VPCLMULQDQ,
	FEATURE_AVX512VNNI, FEATURE_AVX512BITALG.

From-SVN: r258551

	PR c/84853
	* c-typeck.c (build_binary_op) <case RSHIFT_EXPR, case LSHIFT_EXPR>:
	If code1 is INTEGER_TYPE, only allow code0 VECTOR_TYPE if it has
	INTEGER_TYPE element type.

	* gcc.dg/pr84853.c: New test.

From-SVN: r258550

	* parser.c (cp_parser_make_indirect_declarator): Don't wrap
	cp_error_declarator.

From-SVN: r258549

	We avoid complaining about unexpanded packs when inside a lambda,
	since the lambda as a whole could be part of a pack expansion.
	But that can only be true if the lambda is in a template context.

   	* pt.c (check_for_bare_parameter_packs): Don't return early for a
	lambda in non-template context.

From-SVN: r258548

	* pt.c (tsubst_baselink): Update the type of the BASELINK after
	mark_used.

From-SVN: r258547

From-SVN: r258546

re PR target/83451 (FAIL: gfortran.dg/matmul_10.f90   -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions (ICE))

	PR target/83451
	* config/pa/pa.c (pa_emit_move_sequence):  Always emit secondary reload
	insn for floating-point loads and stores.

From-SVN: r258541

In order for std::less<T*> etc. to meet the total order requirements of
[comparisons] p2 we need to cast unrelated pointers to uintptr_t before
comparing them. Those casts aren't allowed in constant expressions, so
only cast when __builtin_constant_p says the result of the comparison is
not a compile-time constant (because the arguments are not constants, or
the result of the comparison is unspecified). When the result is
constant just compare the pointers directly without casting.

This ensures that the function can be called in constant expressions
with suitable arguments, but still yields a total order even for
otherwise unspecified pointer comparisons.

For std::less<void> etc. add new overloads for pointers, which use
std::less<common_type_t<T*,U*>> directly. Also change the generic
overloads to detect when the comparison would call a built-in relational
operator with pointer operands, and dispatch that case to the
corresponding specialization for void pointers.

	PR libstdc++/78420
	* include/bits/stl_function.h (greater<_Tp*>, less<_Tp*>)
	(greater_equal<_Tp*>, less_equal<_Tp>*): Add partial specializations
	to ensure total order for pointers.
	(greater<void>, less<void>, greater_equal<void>, less_equal<void>):
	Add operator() overloads for pointer arguments and make generic
	overloads dispatch to new _S_cmp functions when comparisons would
	use built-in operators for pointers.
	* testsuite/20_util/function_objects/comparisons_pointer.cc: New.

From-SVN: r258540

gcc/ChangeLog:

2018-03-14  Carl Love  <cel@us.ibm.com>

	PR target/84422
	* config/rs6000/rs6000-builtin.def: Change expansion for
	VMULESW to BU_P8V_AV_2.
	Change expansion for VMULEUW to BU_P8V_AV_2.
	* config/rs6000/rs6000.c: Change
	ALTIVEC_BUILTIN_VMULESW to P8V_BUILTIN_VMULESW.
	Change ALTIVEC_BUILTIN_VMULEUW to P8V_BUILTIN_VMULEUW.
	Change ALTIVEC_BUILTIN_VMULOSW to P8V_BUILTIN_VMULOSW.
	Change ALTIVEC_BUILTIN_VMULOUW to P8V_BUILTIN_VMULOUW.
	* config/rs6000/rs6000-c.c: Change
	ALTIVEC_BUILTIN_VMULESW to P8V_BUILTIN_VMULESW.
	Change ALTIVEC_BUILTIN_VMULEUW to P8V_BUILTIN_VMULEUW.
	Change ALTIVEC_BUILTIN_VMULOSW to P8V_BUILTIN_VMULOSW.
	Change ALTIVEC_BUILTIN_VMULOUW to P8V_BUILTIN_VMULOUW.

From-SVN: r258539

	* pt.c (convert_template_argument): Don't substitute into type of
	non-type parameter if we don't have enough arg levels.
	(unify): Likewise.

From-SVN: r258533

gcc/ChangeLog:

2018-03-14  Carl Love  <cel@us.ibm.com>

	* config/rs6000/rs6000-c.c: Add macro definitions for
	ALTIVEC_BUILTIN_VEC_PERMXOR.
	* config/rs6000/rs6000.h: Add #define for vec_permxor builtin.
	* config/rs6000/rs6000-builtin.def: Add macro expansions for VPERMXOR.
	* config/rs6000/altivec.md (altivec_vpermxor): New define expand.
	* config/rs6000/rs6000-p8swap.c (rtx_is_swappable_p): Add case
	UNSPEC_VPERMXOR.
	* config/doc/extend.texi: Add prototypes for vec_permxor.

gcc/testsuite/ChangeLog:

2018-03-14  Carl Love  <cel@us.ibm.com>

	* gcc.target/powerpc/builtins-7-runnable.c: New test file.

From-SVN: r258530

2018-03-14  Martin Liska  <mliska@suse.cz>

	PR ipa/8480
	* g++.dg/lto/pr84805_0.C: New test.
	* g++.dg/lto/pr84805_1.C: New test.
	* g++.dg/lto/pr84805_2.C: New test.

From-SVN: r258529

PR c/84852 reports an ICE inside diagnostic_show_locus when printing
a diagnostic for a source file with a #line >= 2^31:

  #line 7777777777
  int foo (void) { return strlen(""); }

where we're attempting to print a fix-it hint at the top of the file
and underline the "strlen" (two "line spans").

The
  #line 7777777777
won't fix within the 32-bit linenum_type, and is truncated from
  0x1cf977871
to
   0xcf977871
i.e. 3482810481 in decimal.

Such a #line is reported by -pedantic and -pedantic-errors, but we
shouldn't ICE.

The ICE is an assertion failure within layout::calculate_line_spans,
where the line spans have not been properly sorted.

The layout_ranges are stored as int, rather than linenum_type,
giving line -812156815 for the error, and line 1 for the fix-it hint.

However, line_span uses linenum_type rather than int.

line_span::comparator compares these values as int, and hence
decides that (linenum_type)3482810481 aka (int)-812156815 is less
than line 1.

This leads to this assertion failing in layout::calculate_line_spans:

1105	      gcc_assert (next->m_first_line >= current->m_first_line);

since it isn't the case that 1 >= 3482810481.

The underlying problem is the mix of types for storing line numbers:
in parts of libcpp and diagnostic-show-locus.c we use linenum_type;
in other places (including libcpp's expanded_location) we use int.

I looked at using linenum_type throughout, but doing so turned into
a large patch, so this patch fixes the ICE in a less invasive way
by merely using linenum_type more consistently just within
diagnostic-show-locus.c, and fixing line_span::comparator to properly
handle line numbers (and line number differences) >= 2^31, by using
a new helper function for linenum_type differences, computing the
difference using long long, and using the sign of the difference
(as the difference might not fit in the "int" return type imposed
by qsort).

gcc/ChangeLog:
	PR c/84852
	* diagnostic-show-locus.c (class layout_point): Convert m_line
	from int to linenum_type.
	(line_span::comparator): Use linenum "compare" function when
	comparing line numbers.
	(test_line_span): New function.
	(layout_range::contains_point): Convert param "row" from int to
	linenum_type.
	(layout_range::intersects_line_p): Likewise.
	(layout::will_show_line_p): Likewise.
	(layout::print_source_line): Likewise.
	(layout::should_print_annotation_line_p): Likewise.
	(layout::print_annotation_line): Likewise.
	(layout::print_leading_fixits): Likewise.
	(layout::annotation_line_showed_range_p): Likewise.
	(struct line_corrections): Likewise for field m_row.
	(line_corrections::line_corrections): Likewise for param "row".
	(layout::print_trailing_fixits): Likewise.
	(layout::get_state_at_point): Likewise.
	(layout::get_x_bound_for_row): Likewise.
	(layout::print_line): Likewise.
	(diagnostic_show_locus): Likewise for locals "last_line" and
	"row".
	(selftest::diagnostic_show_locus_c_tests): Call test_line_span.
	* input.c (selftest::test_linenum_comparisons): New function.
	(selftest::input_c_tests): Call it.
	* selftest.c (selftest::test_assertions): Test ASSERT_GT,
	ASSERT_GT_AT, ASSERT_LT, and ASSERT_LT_AT.
	* selftest.h (ASSERT_GT): New macro.
	(ASSERT_GT_AT): New macro.
	(ASSERT_LT): New macro.
	(ASSERT_LT_AT): New macro.

gcc/testsuite/ChangeLog:
	PR c/84852
	* gcc.dg/fixits-pr84852-1.c: New test.
	* gcc.dg/fixits-pr84852-2.c: New test.

libcpp/ChangeLog:
	* include/line-map.h (compare): New function on linenum_type.

From-SVN: r258526

This fixes more than half of our testcase failures on BE.


libsanitizer/
	* sanitizer_common/sanitizer_stacktrace.cc
	(BufferedStackTrace::FastUnwindStack): Use the correct frame offset
	for PowerPC SYSV ABI.

From-SVN: r258525

distribute_links tries to place a log_link for whatever the destination
of the modified instruction is.  It shouldn't do that when that dest
is pc_rtx, which isn't actually a register.


	* combine.c (distribute_links): Don't make a link based on pc_rtx.

From-SVN: r258523

2018-03-14  Martin Liska  <mliska@suse.cz>

	* tree.c (record_node_allocation_statistics): Use
	get_stats_node_kind.
	(get_stats_node_kind): New function extracted from
	record_node_allocation_statistics.
	(free_node): Use get_stats_node_kind.

From-SVN: r258521

tree-ssa-pre.c (compute_antic_aux): Remove code that asserts that the value-set of ANTIC_IN doesn't grow.

2018-03-14  Richard Biener  <rguenther@suse.de>

	* tree-ssa-pre.c (compute_antic_aux): Remove code that asserts
	that the value-set of ANTIC_IN doesn't grow.

	Revert
	* tree-ssa-pre.c (struct bb_bitmap_sets): Add visited_with_visited_succs
	member.
	(BB_VISITED_WITH_VISITED_SUCCS): New define.
	(compute_antic): Initialize BB_VISITED_WITH_VISITED_SUCCS.

From-SVN: r258520

scan-assembler-times and scan-tree-dump-times dejagnu directives show a
different output in the summary files depending on whether they PASS or
FAIL. This means that dg-cmp-results would not show a regression because
it would not see a connection between the two output.

The difference comes from the FAIL showing the number of actual times
the pattern was match, presumably to help debugging. This patch moves
the info regarding the actual number of times the pattern match in a
separate verbose message. This keeps the message unchanged but let
developers have the required debug message with -v.

2018-03-14  Thomas Preud'homme  <thomas.preudhomme@arm.com>

    gcc/testsuite/
    * lib/scanasm.exp (scan-assembler-times): Move FAIL debug info into a
    separate verbose message.
    * lib/scandump.exp (scan-dump-times): Likewise.

From-SVN: r258519

Split-up -march=icelake on -march=icelake-server and -march=icelake-client
gcc/
	* config.gcc (icelake-client, icelake-server): New.
	(icelake): Remove.
	* config/i386/i386.c (initial_ix86_tune_features): Extend to 64 bit.
	(initial_ix86_arch_features): Ditto.
	(PTA_SKYLAKE): Add SGX.
	(PTA_ICELAKE): Remove.
	(PTA_ICELAKE_CLIENT): New.
	(PTA_ICELAKE_SERVER): New.
	(ix86_option_override_internal): Split up icelake on icelake client and
	icelake server.
	(get_builtin_code_for_version): Ditto.
	(fold_builtin_cpu): Ditto.
	* config/i386/driver-i386.c (config/i386/driver-i386.c): Ditto.
	* config/i386/i386-c.c (ix86_target_macros_internal): Ditto
	* config/i386/i386.h (processor_type): Ditto.
	* doc/invoke.texi: Ditto.

gcc/testsuite/
	* g++.dg/ext/mv16.C: Split up icelake on icelake client and
	icelake-server.
	* gcc.target/i386/funcspec-56.inc: Ditto.

libgcc/
	* config/i386/cpuinfo.h (processor_subtypes): Split up icelake on
	icelake-client and icelake-server.

From-SVN: r258518

2018-03-14  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/testsuite/
	* gcc.target/aarch64/sve/mul_highpart_1_run.c: Restrict to
	aarch64_sve_hw.

From-SVN: r258517

re PR sanitizer/83392 (FAIL: c-c++-common/ubsan/ptr-overflow-sanitization-1.c  scan-tree-dump-times)

	PR sanitizer/83392
	* sanopt.c (maybe_optimize_ubsan_ptr_ifn): Handle also
	INTEGER_CST offset, add it together with bitpos / 8 and
	sign extend based on POINTER_SIZE.

	* c-c++-common/ubsan/ptr-overflow-sanitization-1.c: Adjust expected
	check count from 17 to 14.

From-SVN: r258516

re PR target/84844 (ICE in extract_constrain_insn_cached, at recog.c:2217 (error: insn does not satisfy its constraints))

	PR target/84844
	Revert
	2017-04-20  Uros Bizjak  <ubizjak@gmail.com>

	PR target/78090
	* config/i386/constraints.md (Yc): New register constraint.
	* config/i386/i386.md (*float<SWI48:mode><MODEF:mode>2_mixed):
	Use Yc constraint for alternative 2 of operand 0.  Remove
	preferred_for_speed attribute.

	* gcc.target/i386/pr84844.c: New test.

From-SVN: r258515

2018-03-14  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/84830
	* tree-ssa-pre.c (compute_antic_aux): Intersect the new ANTIC_IN
	with the old one to avoid oscillations.

	* gcc.dg/torture/pr84830.c: New testcase.

From-SVN: r258514

re PR c++/84596 (internal compiler error: unexpected expression '(bool)c' of kind implicit_conv_expr (cxx_eval_constant_expression))

	PR c++/84596
	* semantics.c (finish_static_assert): Check
	instantiation_dependent_expression_p instead of
	{type,value}_dependent_expression_p.

	* g++.dg/cpp0x/static_assert15.C: New test.

From-SVN: r258513

	* decl.c (check_default_argument): Unshare an initializer list.

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

From-SVN: r258512

2018-03-13  Steven G. Kargl  <kargl@gcc.gnu.org>

	* check.c (gfc_check_kill_sub):  Remove check for INTEGER(4) or (8).
	* intrinsic.c (add_functions): Remove reference to gfc_resolve_kill.
	(add_subroutines): Remove reference to gfc_resolve_kill_sub.
	* intrinsic.texi: Update documentation.
	* iresolve.c (gfc_resolve_kill, gfc_resolve_kill_sub): Remove.
	* trans-decl.c (gfc_build_intrinsic_function_decls):  Add
	gfor_fndecl_kill and gfor_fndecl_kill_sub
	* trans-intrinsic.c (conv_intrinsic_kill, conv_intrinsic_kill_sub): new
	functions.
	(gfc_conv_intrinsic_function): Use conv_intrinsic_kill.
        (gfc_conv_intrinsic_subroutine): Use conv_intrinsic_kill_sub.
	* trans.h: Declare gfor_fndecl_kill and gfor_fndecl_kill_sub.
 
2018-03-13  Steven G. Kargl  <kargl@gcc.gnu.org>

	* libgfortran/gfortran.map: Remove _gfortran_kill_i4,
	_gfortran_kill_i4_sub, _gfortran_kill_i8, and _gfortran_kill_i8_sub.
	Add _gfortran_kill and _gfortran_kill_sub.
	* libgfortran/intrinsics/kill.c: Eliminate _gfortran_kill_i4,
	_gfortran_kill_i4_sub, _gfortran_kill_i8, and _gfortran_kill_i8_sub.
	Add _gfortran_kill and _gfortran_kill_sub.

From-SVN: r258511

re PR fortran/61775 (Allocatable array initialized by implied-do loop array constructor gives invalid memory reference)

2018-03-13  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/61775
	* gfortran.dg/pr61775.f90: New test.

From-SVN: r258509

From-SVN: r258508

2018-03-13  Vladimir Makarov  <vmakarov@redhat.com>

	PR target/83712
	* lra-assigns.c (find_all_spills_for): Ignore uninteresting
	pseudos.
	(assign_by_spills): Return a flag of reload assignment failure.
	Do not process the reload assignment failures.  Do not spill other
	reload pseudos if they has the same reg class.  Update n if
	necessary.
	(lra_assign): Add a return arg.  Set up from the result of
	assign_by_spills call.
	(find_reload_regno_insns, lra_split_hard_reg_for): New functions.
	* lra-constraints.c (split_reg): Add a new arg.  Use it instead of
	usage_insns if it is not NULL.
	(spill_hard_reg_in_range): New function.
	(split_if_necessary, inherit_in_ebb): Pass a new arg to split_reg.
	* lra-int.h (spill_hard_reg_in_range, lra_split_hard_reg_for): New
	function prototypes.
	(lra_assign): Change prototype.
	* lra.c (lra): Add code to deal with fails by splitting hard reg
	live ranges.

From-SVN: r258504

	PR c++/84843
	* decl.c (duplicate_decls): For redefinition of built-in, use error
	and return error_mark_node.  For redeclaration, return error_mark_node
	rather than olddecl if !flag_permissive.

	* g++.dg/ext/pr84843-1.C: New test.
	* g++.dg/ext/pr84843-2.C: New test.

From-SVN: r258503

	* pt.c (instantiate_decl): Clear fn_context for lambdas.

From-SVN: r258502

	* pt.c (convert_nontype_argument): Handle rvalue references.

From-SVN: r258501

	* pt.c (tsubst_pack_expansion): Set cp_unevaluated_operand while
	instantiating dummy parms.

From-SVN: r258500

RISC-V relies on aggressive linker relaxation to get good code size.  As
a result no text symbol addresses can be known until link time, which
means that alignment must be handled during the link.  This alignment
pass is essentially just another linker relaxation, so this has the
unfortunate side effect that linker relaxation is required for
correctness on many RISC-V targets.

The RISC-V assembler has supported an ".option norelax" for a long time
because there are situations in which linker relaxation is a bad idea --
the canonical example is when trying to materialize the initial value of
the global pointer into a register, which would otherwise be relaxed to
a NOP.  We've been relying on users who want to disable relaxation for
an entire link to pass "-Wl,--no-relax", but that still relies on the
linker relaxing R_RISCV_ALIGN to handle alignment despite it not being
strictly necessary.

This patch adds a GCC option, "-mno-relax", that disable linker
relaxation by adding ".option norelax" to the top of every generated
assembly file.  The assembler is smart enough to handle alignment at
assemble time for files that have never emitted a relaxable relocation,
so this is sufficient to really disable all relaxations in the linker,
which results in significantly faster link times for large objects.

This also has the side effect of allowing toolchains that don't support
linker relaxation (LLVM and the Linux module loader) to function
correctly.  Toolchains that don't support linker relaxation should
default to "-mno-relax" and error when presented with any R_RISCV_ALIGN
relocation as those need to be handled for correctness.

gcc/ChangeLog

2018-03-13  Palmer Dabbelt  <palmer@sifive.com>

        * config/riscv/riscv.opt (mrelax): New option.
        * config/riscv/riscv.c (riscv_file_start): Emit ".option
        "norelax" when riscv_mrelax is disabled.
        * doc/invoke.texi (RISC-V): Document "-mrelax" and "-mno-relax".

From-SVN: r258499