* gcc-interface/misc.c (gnat_init_gcc_eh): Set -fnon-call-exceptions
	for the runtime on platforms where System.Machine_Overflow is true.

From-SVN: r266057

When lambdas were added in C++11 they were banned from unevaluated contexts
as a way to avoid needing to deal with them in mangling or SFINAE.  This
proposal avoids that with a more narrow proposal: lambdas never compare as
equivalent (so we don't need to mangle them), and substitution failures
within a lambda are hard errors.  Lambdas appearing in places that types
couldn't previously have been declared introduces various complications; in
particular, it seems likely to mean types with no linkage being used more
broadly, risking ODR violations.  I want to follow up this patch with some
related diagnostics.

	* decl2.c (min_vis_expr_r): Handle LAMBDA_EXPR.
	* mangle.c (write_expression): Handle LAMBDA_EXPR.
	* parser.c (cp_parser_lambda_expression): Allow lambdas in
	unevaluated context.  Start the tentative firewall sooner.
	(cp_parser_lambda_body): Use cp_evaluated.
	* pt.c (iterative_hash_template_arg): Handle LAMBDA_EXPR.
	(tsubst_function_decl): Substitute a lambda even if it isn't
	dependent.
	(tsubst_lambda_expr): Use cp_evaluated.  Always complain.
	(tsubst_copy_and_build) [LAMBDA_EXPR]: Do nothing if tf_partial.
	* semantics.c (begin_class_definition): Allow in template parm list.
	* tree.c (strip_typedefs_expr): Pass through LAMBDA_EXPR.
	(cp_tree_equal): Handle LAMBDA_EXPR.

From-SVN: r266056

Previously, when we got a function template with explicit arguments for all
of the template parameters, we still did "deduction", which of course
couldn't deduce anything, but did other deduction-time checking of
non-dependent conversions and such.  This broke down with the unevaluated
lambdas patch (to follow): substituting into the lambda multiple times, once
to get the function type for deduction and then again to generate the actual
decl, doesn't work, since different substitutions of a lambda produce
different types.  I believe that skipping the initial substitution when we
have all the arguments is still conformant, and produces better diagnostics
for some testcases.

	* pt.c (fn_type_unification): If we have a full set of explicit
	arguments, go straight to substitution.

From-SVN: r266055

	* decl2.c (min_vis_expr_r, expr_visibility): New.

We weren't properly constraining visibility based on names that appear in
the mangled representation of expressions.  This was made more obvious
by the upcoming unevaluated lambdas patch.

	(min_vis_r): Call expr_visibility.
	(constrain_visibility_for_template): Likewise.

From-SVN: r266054

A destroying operator delete takes responsibility for calling the destructor
for the object it is deleting; this is intended to be useful for sized
delete of a class allocated with a trailing buffer, where the compiler can't
know the size of the allocation, and so would pass the wrong size to the
non-destroying sized operator delete.

gcc/c-family/
	* c-cppbuiltin.c (c_cpp_builtins): Define
	__cpp_impl_destroying_delete.
gcc/cp/
	* call.c (std_destroying_delete_t_p, destroying_delete_p): New.
	(aligned_deallocation_fn_p, usual_deallocation_fn_p): Use
	destroying_delete_p.
	(build_op_delete_call): Handle destroying delete.
	* decl2.c (coerce_delete_type): Handle destroying delete.
	* init.c (build_delete): Don't call dtor with destroying delete.
	* optimize.c (build_delete_destructor_body): Likewise.
libstdc++-v3/
	* libsupc++/new (std::destroying_delete_t): New.

From-SVN: r266053

Mostly this was straightforward; the tricky bit was finding, in the
instantiation, the set of capture proxies built when instantiating the
init-capture.  The comment in lookup_init_capture_pack goes into detail.

	* parser.c (cp_parser_lambda_introducer): Parse pack init-capture.
	* pt.c (tsubst_pack_expansion): Handle init-capture packs.
	(lookup_init_capture_pack): New.
	(tsubst_expr) [DECL_EXPR]: Use it.
	(tsubst_lambda_expr): Remember field pack expansions for
	init-captures.

From-SVN: r266052

	* cp-tree.h (struct cp_evaluated): New.

This patch simplifies the saving/clearing/restoring of
cp_unevaluated_operand and c_inhibit_evaluation_warnings in the presence of
mid-block returns.

	* init.c (get_nsdmi): Use it.
	* parser.c (cp_parser_enclosed_template_argument_list): Use it.
	* pt.c (coerce_template_parms, tsubst_aggr_type): Use it.

From-SVN: r266051

People objected to the old macro name as unclear, so it was changed.

	* c-cppbuiltin.c (c_cpp_builtins): Change __cpp_explicit_bool to
	__cpp_conditional_explicit.

From-SVN: r266050

This patch removes a call only necessary when using reload.  It also
corrects a PRE_DEC address offset.

	* config/rs6000/rs6000.c (rs6000_secondary_reload_inner): Negate
	offset for PRE_DEC.
	(rs6000_secondary_reload_gpr): Don't call find_replacement.

From-SVN: r266049

re PR middle-end/59634 (Documentation (info/man page): lack of information for cache size parameters (--param))

2018-11-13  Sandra Loosemore  <sandra@codesourcery.com>

	PR middle-end/59634

	gcc/
	* doc/invoke.texi (Optimize Options): Clarify that the
	l1-cache-line-size, l1-cache-size, and l2-cache-size parameters
	apply to data cache size.

From-SVN: r266048

	* config/rs6000/rs6000.c (rs6000_emit_prologue): Comment fix.

From-SVN: r266047

The testcase exercises one of the rotate patterns.

gcc/
	* config/rs6000/predicates.md (logical_const_operand),
	(logical_operand): Correct comment.
gcc/testsuite/
	* gcc.target/powerpc/rotmask.c: New.

From-SVN: r266046

	* config/rs6000/rs6000.md (addsi3_high): Prefix with '*'.

From-SVN: r266045

This catches a few places where move insn patterns don't slightly
disparage CTR, LR and VRSAVE regs.  Also fixes the doc for the rs6000
h constraint, and removes an r->cl alternative covered by r->h.

	* gcc/doc/md.texi (Machine Constraints): Correct rs6000 h constraint
	description.
	* config/rs6000/rs6000.md (movsi_internal1): Delete MT%0 case
	covered by alternative.
	(movcc_internal1): Ignore h for register preference.
	(mov<mode>_hardfloat64): Likewise.
	(mov<mode>_softfloat): Ignore c, l, h for register preference.

From-SVN: r266044

2018-11-12  Sandra Loosemore  <sandra@codesourcery.com>

	PR preprocessor/47823

	gcc/
	* doc/cpp.texi (Alternatives to Wrapper #ifndef): Move #pragma once
	documentation to...
	(Pragmas): ...here.  
	* doc/extend.texi (Pragmas): Note additional pragmas documented
	in the CPP manual.

From-SVN: r266043

From-SVN: r266042

gcc/ChangeLog:

2018-11-13  Kugan Vivekanandarajah  <kuganv@linaro.org>

	PR middle-end/86677
	PR middle-end/87528
	* tree-scalar-evolution.c (expression_expensive_p): Make BUILTIN POPCOUNT
	as expensive when backend does not define it.

gcc/testsuite/ChangeLog:

2018-11-13  Kugan Vivekanandarajah  <kuganv@linaro.org>

	PR middle-end/86677
	PR middle-end/87528
	* g++.dg/tree-ssa/pr86544.C: Run only for target supporting popcount
	pattern.
	* gcc.dg/tree-ssa/popcount.c: Likewise.
	* gcc.dg/tree-ssa/popcount2.c: Likewise.
	* gcc.dg/tree-ssa/popcount3.c: Likewise.
	* gcc.target/aarch64/popcount4.c: New test.
	* lib/target-supports.exp (check_effective_target_popcountl): New.

From-SVN: r266039

The Linux kernel requires and emulates LL and SC for the R5900 too.  The
special --without-llsc default for the R5900 is therefore not applicable
in that case.

Reviewed-by: Maciej W. Rozycki <macro@linux-mips.org>

2018-11-12  Fredrik Noring  <noring@nocrew.org>

	gcc/
	* config.gcc: Update with-llsc defaults for MIPS r5900.

From-SVN: r266038

2018-11-12  Martin Liska  <mliska@suse.cz>

	PR gcov-profile/87442
	* common.opt: Add -fprofile-filter-files and -fprofile-exclude-files
	options.
	* doc/invoke.texi: Document them.
	* tree-profile.c (parse_profile_filter): New.
	(parse_profile_file_filtering): Likewise.
	(release_profile_file_filtering): Likewise.
	(include_source_file_for_profile): Likewise.
	(tree_profiling): Filter source files based on the
	newly added options.
2018-11-12  Martin Liska  <mliska@suse.cz>

	PR gcov-profile/87442
	* gcc.dg/profile-filtering-1.c: New test.
	* gcc.dg/profile-filtering-2.c: New test.

From-SVN: r266037

2018-11-12  Martin Liska  <mliska@suse.cz>

	PR target/87903
	* doc/extend.texi: Add missing values for __builtin_cpu_is and
	__builtin_cpu_supports for x86 target.

From-SVN: r266036

2018-11-12  Sandra Loosemore  <sandra@codesourcery.com>

	PR middle-end/21110

	gcc/
	* doc/rtl.texi (Constants): Clarify that mode of "high" doesn't
	have to be Pmode.
	(Arithmetic): Likewise for "lo_sum".

From-SVN: r266035

gcc/testsuite/ChangeLog:
	* gcc.dg/Wattribute-alias.c: Require ifunc support.

From-SVN: r266034

[PR87815]Don't generate shift sequence for load replacement in DSE when the mode size is not compile-time constant

The patch adds a check if the gap is compile-time constant.

This happens when dse decides to replace the load with previous store value.
The problem is that, shift sequence could not accept compile-time non-constant
mode operand.

gcc/

2018-11-12  Renlin Li  <renlin.li@arm.com>

	PR target/87815
	* dse.c (get_stored_val): Add check for compile-time
	constantness of gap.

gcc/testsuite/

2018-11-12  Renlin Li  <renlin.li@arm.com>

	PR target/87815
	* gcc.target/aarch64/sve/pr87815.c: New.

From-SVN: r266033

	PR libstdc++/87963
	* src/c++17/memory_resource.cc (chunk::_M_bytes): Change type from
	unsigned to uint32_t.
	(chunk): Fix static assertion for 64-bit targets that aren't LP64.
	(bigblock::all_ones): Fix undefined shift.

From-SVN: r266032

This patch adds -march=armv8.5-a to the Arm backend.
Armv8.5-A also adds two new security features:
- Speculation Barrier instruction
- Execution and Data Prediction Restriction Instructions
These are made optional to all older Armv8-A versions. Thus we are adding two
new options "+sb" and "+predres" to all older Armv8-A. These are passed on to
the assembler and have no code generation effects and have already gone in the
trunk of binutils.

*** gcc/ChangeLog ***

2018-11-12  Sudakshina Das  <sudi.das@arm.com>

	* config/arm/arm-cpus.in (armv8_5, sb, predres): New features.
	(ARMv8_5a): New fgroup.
	(armv8.5-a): New arch.
	(armv8-a, armv8.1-a, armv8.2-a, armv8.3-a, armv8.4-a): New options
	sb and predres.
	* config/arm/arm-tables.opt: Regenerate.
	* config/arm/t-aprofile: Add matching rules for -march=armv8.5-a
	* config/arm/t-arm-elf (all_v8_archs): Add armv8.5-a.
	* config/arm/t-multilib (v8_5_a_simd_variants): New variable.
	Add matching rules for -march=armv8.5-a and extensions.
	* doc/invoke.texi (ARM options): Document -march=armv8.5-a.
	Add sb and predres to all armv8-a except armv8.5-a.

*** gcc/testsuite/ChangeLog ***

2018-11-12  Sudakshina Das  <sudi.das@arm.com>

	* gcc.target/arm/multilib.exp: Add some -march=armv8.5-a
	combination tests.

From-SVN: r266031

	* tree-vrp.h (value_range[_base]::set): Make public.  Provide
	overload for single value.
	(value_range[_base]::set_nonnull): New.
	(value_range[_base]::set_null): Likewise.
	(value_range): Document bitmap copying behavior, mark
	copy constructor and assignment operator deleted.
	(value_range::move): New.
	(value_range::set_and_canonicalize): Default bitmap to zero.
	(set_value_range_to_nonnull): Remove.
	(set_value_range_to_null): Likewise.
	(set_value_range): Likewise.
	(set_value_range_to_value): Likewise.
	(extract_range_from_unary_expr): Work on value_range_base.
	(extract_range_from_binary_expr_1): Likewise.  Rename to...
	(extract_range_from_binary_expr): ... this.
	* tree-vrp.c (value_range::update): Clear equiv bitmap
	if required.
	(value_range::move): New, move equiv bitmap.
	(value_range_base::set_undefined): Avoid assignment.
	(value_range::set_undefined): Likewise.
	(value_range_base::set_varying): Likewise.
	(value_range::set_varying): Likewise.
	(set_value_range): Remove.
	(value_range_base::set): New overload for value.
	(value_range::set): Likewise.
	(set_value_range_to_nonnull): Remove.
	(value_range_base::set_nonnull): New.
	(value_range::set_nonnull): Likewise.
	(set_value_range_to_null): Remove.
	(value_range_base::set_null): New.
	(value_range::set_null): Likewise.
	(range_is_null): Work on value_range_base.
	(range_is_nonnull): Likewise.
	(ranges_from_anti_range): Likewise.
	(extract_range_into_wide_ints): Likewise.
	(extract_range_from_multiplicative_op): Likewise.
	(extract_range_from_binary_expr): Likewise.  Update for API changes.
	(extract_range_from_unary_expr): Likewise.  Remove OBJ_TYPE_REF
	handling.
	(value_range::intersect_helper): Avoid copy and assignment.
	(value_range::union_helper): Likewise.
	(determine_value_range_1): Adjust.
	* gimple-ssa-evrp-analyze.c (evrp_range_analyzer::try_find_new_range):
	Avoid assignment by using move.
	(evrp_range_analyzer::record_ranges_from_stmt): Avoid assignment.
	* tree-ssa-threadedge.c (record_temporary_equivalences_from_phis):
	Likewise.
	* tree-ssanames.c (get_range_info): Likewise.
	* vr-values.h (vr_values::get_vr_for_comparison): Adjust API.
	* vr-values.c (vr_values::get_value_range): Adjust.
	(vr_values::update_value_range): Likewise.
	(symbolic_range_based_on_p): Work on value_range_base.
	(vr_values::extract_range_from_binary_expr): Use value_range_base.
	(vr_values::extract_range_from_unary_expr): Likewise.
	(vr_values::extract_range_from_cond_expr): Avoid assignment.
	(vr_values::extract_range_from_comparison): Adjust.
	(vr_values::check_for_binary_op_overflow): Use value_range_base.
	(vr_values::extract_range_basic): Adjust.
	(vr_values::adjust_range_with_scev): Likewise.
	(vr_values::vrp_visit_assignment_or_call): Likewise.
	(vr_values::get_vr_for_comparison): Change API to avoid
	assignment and copy construction.
	(vr_values::compare_name_with_value): Adjust accordingly.
	(vr_values::compare_names): Likewise.
	(vr_values::extract_range_from_phi_node): Avoid assignment and
	bogus in-place modify of equiv bitmap.
	(vr_values::simplify_bit_ops_using_ranges): Use value_range_base.
	* ipa-prop.c (ipa_compute_jump_functions_for_edge): Adjust
	for extract_range_from_unary_expr API change.
	* ipa-cp.c (ipa_vr_operation_and_type_effects): Likewise.

From-SVN: r266030

From-SVN: r266029

2018-11-12  Richard Biener  <rguenther@suse.de>

	* tree-vrp.h (value_range_base::symbolic_p,
	value_range_base::constant_p, value_range_base::zero_p,
	value_range_base::singleton_p): Move from value_range.
	(value_range::dump): Add.
	* gimple-ssa-evrp-analyze.c
	(evrp_range_analyzer::record_ranges_from_phis): Use set_varying.
	* ipa-cp.c (ipcp_vr_lattice::print): Use dump_value_range.
	* tree-ssa-threadedge.c (record_temporary_equivalences_from_phis):
	Use set_varying.
	* tree-vrp.c (value_range::symbolic_p): Move to value_range_base.
	(value_range::constant_p): Likewise.
	(value_range::singleton_p): Likewise.
	(value_range_base::dump): Add.
	(set_value_range_to_undefined): Remove.
	(set_value_range_to_varying): Likewise.
	(range_int_cst_p): Take value_range_base argument.
	(range_int_cst_singleton_p): Likewise.
	(value_range_constant_singleton): Likewise.
	(vrp_set_zero_nonzero_bits): Likewise.
	(extract_range_from_multiplicative_op): Use set_varying.
	(extract_range_from_binary_expr_1): Likewise. Use set_undefined.
	(extract_range_from_unary_expr): Likewise.
	(dump_value_range_base): Change to overload of dump_value_range.
	(vrp_prop::vrp_initialize): Use set_varying and set_undefined.
	(vrp_prop::visit_stmt): Likewise.
	(value_range::intersect_helper): Likewise.
	(value_range::union_helper): Likewise.
	(determine_value_range_1): Likewise.

From-SVN: r266028

2018-11-12  Richard Biener  <rguenther@suse.de>

	* tree-vrp.c (set_value_range_to_nonnull): Clear equiv.
	(set_value_range_to_null): Likewise.
	* vr-values.c (vr_values::extract_range_from_comparison):
	Clear equiv for constant singleton ranges.

From-SVN: r266027

2018-11-12 Wei Xiao <wei3.xiao@intel.com>

        * config/i386/sse.md: Combine VFIXUPIMM* patterns
        (<avx512>_fixupimm<mode>_maskz<round_saeonly_expand_name>): Update.
        (<avx512>_fixupimm<mode><sd_maskz_name><round_saeonly_name>): Update.
        (<avx512>_fixupimm<mode>_mask<round_saeonly_name>): Remove.
        (avx512f_sfixupimm<mode>_maskz<round_saeonly_expand_name>): Update.
        (avx512f_sfixupimm<mode><sd_maskz_name><round_saeonly_name>): Update.
        (avx512f_sfixupimm<mode>_mask<round_saeonly_name>): Remove.

From-SVN: r266026

2018-11-11  Sandra Loosemore  <sandra@codesourcery.com>

	PR c/69502

	gcc/
	* doc/extend.texi (Common Type Attributes): For the align type
	attribute, copy language about decreasing alignment from the
	corresponding variable attribute.

From-SVN: r266025

2018-11-11  Xianmiao Qu  <xianmiao_qu@c-sky.com>

	gcc/
	* config/csky/csky.md (*fpuv2_nmulsf3_1, *fpuv2_nmuldf3_1): Handle
	-frounding-math.

	gcc/testsuite
	* gcc.target/csky/fnmul-1.c: New.
	* gcc.target/csky/fnmul-2.c: New.
	* gcc.target/csky/fnmul-3.c: New.
	* gcc.target/csky/fnmul-4.c: New.

From-SVN: r266024

From-SVN: r266023

2018-11-11  Sandra Loosemore  <sandra@codesourcery.com>

	PR c++/43105

	gcc/
	* doc/invoke.texi (C++ Dialect Options): Add warning about mixing
	-frtti and -fno-rtti code.

From-SVN: r266020

From-SVN: r266019

re PR libstdc++/54005 (Use __atomic_always_lock_free in libstdc++ is_lock_free instead of __atomic_is_lock_free)

	PR libstdc++-v3/54005
	* include/bits/atomic_base.h (__atomic_base<_TTp>::is_lock_free(),
	__atomic_base<_PTp*>::is_lock_free()): Call __atomic_always_lock_free
	with the type-derived _S_alignment instead of __alignof the object.
	* include/std/atomic (atomic<T>::is_lock_free()): Likewise.

From-SVN: r266018

2018-11-11  Sandra Loosemore  <sandra@codesourcery.com>

	PR c/26366

	gcc/
	* doc/extend.texi (Other Builtins): Document probability associated
	with __builtin_expect.

From-SVN: r266017

	PR target/87928
	* config/i386/i386.h (STACK_BOUNDARY): Use TARGET_64BIT_MS_ABI
	instead of (TARGET_64BIT && ix86_abi == MS_ABI).
	* config/i386/darwin.h (STACK_BOUNDARY): Ditto.
	* config/i386/cygming.h (STACK_BOUNDARY): Remove.

testsuite /Changelog:

	PR target/87928
	* gcc.target/i386/pr87928.c: New test.

From-SVN: r266016

2018-11-11  Xianmiao Qu  <xianmiao_qu@c-sky.com>

	* config/csky/csky-linux-elf.h (CC1_SPEC): Support -profile.

From-SVN: r266013

2018-11-11  Xianmiao Qu  <xianmiao_qu@c-sky.com>

	* config/csky/csky.h (ASM_PREFERRED_EH_DATA_FORMAT): Define.

From-SVN: r266012