Replace all custom "library" calls with compiler known patterns.

gcc/
xxxx-xx-xx  Claudiu Zissulescu  <claziss@synopsys.com>

	* config/arc/arc.md (mulsi3): Remove call to mulsi_600_lib.
	(mulsi3_600_lib): Remove pattern.
	(umulsi3_highpart_600_lib_le): Likewise.
	(umulsi3_highpart): Remove call to umulsi3_highpart_600_lib_le.
	(umulsidi3): Remove call to umulsidi3_600_lib.
	(umulsidi3_600_lib): Remove pattern.
	(peephole2): Remove peephole using the above deprecated patterns.

testsuite/
xxxx-xx-xx  Claudiu Zissulescu  <claziss@synopsys.com>

	* gcc.target/arc/mulsi3_highpart-2.c: Update test.

libgcc/
xxxx-xx-xx  Claudiu Zissulescu  <claziss@synopsys.com>

	* config/arc/lib1funcs.S (_muldi3): New function.
	* config/arc/t-arc (LIB1ASMFUNCS): Add _muldi3.

From-SVN: r265672

2018-10-31  Martin Liska  <mliska@suse.cz>

	* c-c++-common/ubsan/pr63839.c: Update to new sanitizer message.
	* c-c++-common/ubsan/unreachable-1.c (main): Likewise.
	* c-c++-common/ubsan/unreachable-2.c: Likewise.
	* c-c++-common/ubsan/unreachable-4.c (main): Likewise.

From-SVN: r265670

2018-10-31  Martin Liska  <mliska@suse.cz>

	* ubsan/ubsan_platform.h: Add ifndef as we define it with
	-DCAN_SANITIZE_UB CFLAGS.

From-SVN: r265669

2018-10-31  Martin Liska  <mliska@suse.cz>

	* asan/asan_mapping.h: Revert shadow memory offset to 1 << 41.

From-SVN: r265668

2018-10-31  Martin Liska  <mliska@suse.cz>

	* LOCAL_PATCHES: Update patch list.
	* asan/asan_globals.cc (CheckODRViolationViaIndicator): Apply
	patches from GCC's trunk.
	(CheckODRViolationViaPoisoning): Likewise.
	(RegisterGlobal): Likewise.
	* sanitizer_common/sanitizer_mac.cc (defined): Likewise.
	* sanitizer_common/sanitizer_stacktrace.cc (GetCanonicFrame): Likewise.
	* ubsan/ubsan_handlers.cc (__ubsan::__ubsan_handle_cfi_bad_icall): Likewise.
	(__ubsan::__ubsan_handle_cfi_bad_icall_abort): Likewise.
	* ubsan/ubsan_handlers.h (struct CFIBadIcallData): Likewise.
	(struct CFICheckFailData): Likewise.
	(RECOVERABLE): Likewise.

From-SVN: r265667

2018-10-31  Martin Liska  <mliska@suse.cz>

	* config.h.in: Regenerate.
	* configure: Likewise.
	* sanitizer_common/Makefile.am: Include new files, remove old
	files.
	* sanitizer_common/Makefile.in: Regenerate.
	* ubsan/Makefile.am: Include new files, remove old
	files.
	* ubsan/Makefile.in: Likewise.
	* asan/Makefile.am: Include new files.
	* asan/Makefile.in: Regenerate.

From-SVN: r265666

Merge from upstream 345033.

2018-10-31  Martin Liska  <mliska@suse.cz>

	* All source files: Merge from upstream 345033.

From-SVN: r265665

2018-10-31  Martin Liska  <mliska@suse.cz>

	* HOWTO_MERGE: Enhance documentation.
	* merge.sh: Add support for git as well.

From-SVN: r265664

2018-10-31  Martin Liska  <mliska@suse.cz>

	* trans-decl.c (struct module_hasher): Call htab_hash_string
	for s->name and not for s.

From-SVN: r265663

GCC ICEs under -mslow-flash-data and -mword-relocations because there
is no way to load an address, both literal pools and MOVW/MOVT being
forbidden. This patch gives an error message when both options are
specified by the user and adds the according dg-skip-if directives for
tests that use either of these options. It also explicitely set the
option when in PIC mode as per documentation rather than always check
for target_word_relocation together with flag_pic.

2018-10-31  Thomas Preud'homme  <thomas.preudhomme@linaro.org>

    gcc/
    PR target/87374
    * config/arm/arm.c (arm_option_check_internal): Disable the combined
    use of -mslow-flash-data and -mword-relocations.
    (arm_option_override): Enable -mword-relocations if -fpic or -fPIC.
    * config/arm/arm.md (SYMBOL_REF MOVT splitter): Stop checking for
    flag_pic.
    * doc/invoke.texi (-mword-relocations): Mention conflict with
    -mslow-flash-data.
    (-mslow-flash-data): Reciprocally.

    gcc/testsuite/
    PR target/87374
    * gcc.target/arm/movdi_movt.c: Skip if both -mslow-flash-data and
    -mword-relocations would be passed when compiling the test.
    * gcc.target/arm/movsi_movt.c: Likewise.
    * gcc.target/arm/pr81863.c: Likewise.
    * gcc.target/arm/thumb2-slow-flash-data-1.c: Likewise.
    * gcc.target/arm/thumb2-slow-flash-data-2.c: Likewise.
    * gcc.target/arm/thumb2-slow-flash-data-3.c: Likewise.
    * gcc.target/arm/thumb2-slow-flash-data-4.c: Likewise.
    * gcc.target/arm/thumb2-slow-flash-data-5.c: Likewise.
    * gcc.target/arm/tls-disable-literal-pool.c: Likewise.

From-SVN: r265662

The LSE CASP instruction requires values to be placed in even
register pairs.  A solution involving two additional register
classes was rejected in favor of the much simpler solution of
simply requiring all TImode values to be aligned.

	* config/aarch64/aarch64.c (aarch64_hard_regno_mode_ok): Force
	16-byte modes held in GP registers to use an even regno.

From-SVN: r265661

Fix constraints; avoid unnecessary split.  Drop the use of the atomic_op
iterator in favor of the ATOMIC_LDOP iterator; this is simplier and more
logical for ldclr aka bic.

	* config/aarch64/aarch64.c (aarch64_emit_bic): Remove.
	(aarch64_atomic_ldop_supported_p): Remove.
	(aarch64_gen_atomic_ldop): Remove.
	* config/aarch64/atomic.md (atomic_<atomic_optab><ALLI>):
	Fully expand LSE operations here.
	(atomic_fetch_<atomic_optab><ALLI>): Likewise.
	(atomic_<atomic_optab>_fetch<ALLI>): Likewise.
	(aarch64_atomic_<ATOMIC_LDOP><ALLI>_lse): Drop atomic_op iterator
	and use ATOMIC_LDOP instead; use register_operand for the input;
	drop the split and emit insns directly.
	(aarch64_atomic_fetch_<ATOMIC_LDOP><ALLI>_lse): Likewise.
	(aarch64_atomic_<atomic_op>_fetch<ALLI>_lse): Remove.
	(@aarch64_atomic_load<ATOMIC_LDOP><ALLI>): Remove.

From-SVN: r265660

Allow zero as an input; fix constraints; avoid unnecessary split.

	* config/aarch64/aarch64.c (aarch64_emit_atomic_swap): Remove.
	(aarch64_gen_atomic_ldop): Don't call it.
	* config/aarch64/atomics.md (atomic_exchange<ALLI>):
	Use aarch64_reg_or_zero.
	(aarch64_atomic_exchange<ALLI>): Likewise.
	(aarch64_atomic_exchange<ALLI>_lse): Remove split; remove & from
	operand 0; use aarch64_reg_or_zero for input; merge ...
	(@aarch64_atomic_swp<ALLI>): ... this and remove.

From-SVN: r265659

ChangeLog:

2018-10-31  Iain Buclaw  <ibuclaw@gdcproject.org>

	PR bootstrap/87788
	PR d/87799
	* configure: Rebuild.
	* configure.ac: Disable D on systems where it is known not to work.

libphobos/ChangeLog:

2018-10-31  Iain Buclaw  <ibuclaw@gdcproject.org>

	PR bootstrap/87789
	PR d/87818
	PR d/87819
	* configure.tgt: New file.

From-SVN: r265658

Do not zero-extend the input to the cas for subword operations;
instead, use the appropriate zero-extending compare insns.
Correct the predicates and constraints for immediate expected operand.

	* config/aarch64/aarch64.c (aarch64_gen_compare_reg_maybe_ze): New.
	(aarch64_split_compare_and_swap): Use it.
	(aarch64_expand_compare_and_swap): Likewise.  Remove convert_modes;
	test oldval against the proper predicate.
	* config/aarch64/atomics.md (@atomic_compare_and_swap<ALLI>):
	Use nonmemory_operand for expected.
	(cas_short_expected_pred): New.
	(@aarch64_compare_and_swap<SHORT>): Use it; use "rn" not "rI" to match.
	(@aarch64_compare_and_swap<GPI>): Use "rn" not "rI" for expected.
	* config/aarch64/predicates.md (aarch64_plushi_immediate): New.
	(aarch64_plushi_operand): New.

From-SVN: r265657

The cas insn is a single insn, and if expanded properly need not
be split after reload.  Use the proper inputs for the insn.

	* config/aarch64/aarch64.c (aarch64_expand_compare_and_swap):
	Force oldval into the rval register for TARGET_LSE; emit the compare
	during initial expansion so that it may be deleted if unused.
	(aarch64_gen_atomic_cas): Remove.
	* config/aarch64/atomics.md (@aarch64_compare_and_swap<SHORT>_lse):
	Change =&r to +r for operand 0; use match_dup for operand 2;
	remove is_weak and mod_f operands as unused.  Drop the split
	and merge with...
	(@aarch64_atomic_cas<SHORT>): ... this pattern's output; remove.
	(@aarch64_compare_and_swap<GPI>_lse): Similarly.
	(@aarch64_atomic_cas<GPI>): Similarly.

From-SVN: r265656

2018-10-31  Richard Biener  <rguenther@suse.de>

	PR testsuite/87802
	* g++.dg/vect/slp-pr87105.cc: XFAIL for strict alignment targets.

From-SVN: r265655

2018-10-31  Richard Biener  <rguenther@suse.de>

	* tree-eh.c (replace_trapping_overflow): Simplify ABS_EXPR case
	using ABSU_EXPR.

From-SVN: r265654

From-SVN: r265653

From-SVN: r265652

2018-10-30  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/85896
	* simplify.c (simplify_min_max): Do not convert the type of the
	return expression.

2018-10-30  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/85896
	* gfortran.dg/min_max_type.f90: New test.

From-SVN: r265649

gcc/ChangeLog:

	PR middle-end/87041
	* gimple-ssa-sprintf.c (format_directive): Use %G to include
	inlining context.
	(sprintf_dom_walker::compute_format_length):
	Avoid setting POSUNDER4K here.
	(get_destination_size): Handle null argument values.
	(get_user_idx_format): New function.
	(sprintf_dom_walker::handle_gimple_call): Handle all printf-like
	functions, including user-defined with attribute format printf.
	Use %G to include inlining context.
	Set POSUNDER4K here.

gcc/c-family/ChangeLog:

	PR middle-end/87041
	* c-format.c (check_format_types): Avoid diagnosing null pointer
	arguments to printf-family of functions.

gcc/testsuite/ChangeLog:

	PR middle-end/87041
	* gcc.c-torture/execute/fprintf-2.c: New test.
	* gcc.c-torture/execute/printf-2.c: Same.
	* gcc.c-torture/execute/user-printf.c: Same.
	* gcc.dg/tree-ssa/builtin-fprintf-warn-1.c: Same.
	* gcc.dg/tree-ssa/builtin-printf-2.c: Same.
	* gcc.dg/tree-ssa/builtin-printf-warn-1.c: Same.
	* gcc.dg/tree-ssa/user-printf-warn-1.c: Same.

From-SVN: r265648

From-SVN: r265647

	* c-cppbuiltin.c (c_cpp_builtins): Define __cpp_explicit_bool.

	* call.c (add_template_candidate_real): Return if the declaration is
	explicit and we're only looking for non-converting constructor.
	* cp-tree.h (lang_decl_fn): Add has_dependent_explicit_spec_p bit.
	(DECL_HAS_DEPENDENT_EXPLICIT_SPEC_P): New macro.
	(cp_decl_specifier_seq): Add explicit_specifier field.
	(build_explicit_specifier, store_explicit_specifier): Declare.
	* decl.c (grokdeclarator): Call store_explicit_specifier.
	(build_explicit_specifier): New function.
	* parser.c (cp_parser_function_specifier_opt) <case RID_EXPLICIT>:
	Parse C++20 explicit(bool).
	* pt.c (store_explicit_specifier, lookup_explicit_specifier): New.
	(tsubst_function_decl): Handle explicit(dependent-expr).

	* g++.dg/cpp2a/explicit1.C: New test.
	* g++.dg/cpp2a/explicit10.C: New test.
	* g++.dg/cpp2a/explicit11.C: New test.
	* g++.dg/cpp2a/explicit12.C: New test.
	* g++.dg/cpp2a/explicit13.C: New test.
	* g++.dg/cpp2a/explicit2.C: New test.
	* g++.dg/cpp2a/explicit3.C: New test.
	* g++.dg/cpp2a/explicit4.C: New test.
	* g++.dg/cpp2a/explicit5.C: New test.
	* g++.dg/cpp2a/explicit6.C: New test.
	* g++.dg/cpp2a/explicit7.C: New test.
	* g++.dg/cpp2a/explicit8.C: New test.
	* g++.dg/cpp2a/explicit9.C: New test.

	* testsuite/20_util/any/cons/explicit.cc: Adjust dg-error.
	* testsuite/20_util/pair/cons/explicit_construct.cc: Likewise.
	* testsuite/20_util/tuple/cons/explicit_construct.cc: Likewise.

From-SVN: r265641

After r265398, the ira-shrinkwrap-prep-[12].c tests fail on all
targets, because the IRA feature tested can only move hard registers
down, and we no longer have hard registers for the function parameters
at this stage.


gcc/testsuite/
	PR rtl-optimization/87708
	gcc.dg/ira-shrinkwrap-prep-1.c: xfail test.
	gcc.dg/ira-shrinkwrap-prep-2.c: xfail test.

From-SVN: r265639

	(free_lang_data_d, add_tree_to_fld_list, fld_worklist_push): Move
	head in file.
	(free_lang_data_in_type): Forward declare.
	(fld_type_variant_equal_p): New function.
	(fld_type_variant): New function
	(fld_incomplete_types): New hash.
	(fld_incomplete_type_of): New function
	(fld_simplfied-type): New function.
	(free_lang_data_in_decl): Add fld parameter; simplify type of FIELD_DECL
	(free_lang_data): Allocate and free fld_incomplete_type; update call
	of free_lang_data_in_decl.

From-SVN: r265638

/cp
2018-10-30  Paolo Carlini  <paolo.carlini@oracle.com>

	* decl.c (grokdeclarator): Use declarator->id_loc in diagnostic
	about flexible array members.

/testsuite
2018-10-30  Paolo Carlini  <paolo.carlini@oracle.com>

	* g++.dg/cpp1z/has-unique-obj-representations1.C: Test location too.
	* g++.dg/ext/flexarray-mangle-2.C: Likewise.
	* g++.dg/ext/flexarray-mangle.C: Likewise.
	* g++.dg/ext/flexarray-subst.C: Likewise.
	* g++.dg/ext/flexary10.C: Likewise.
	* g++.dg/ext/flexary11.C: Likewise.
	* g++.dg/ext/flexary14.C: Likewise.
	* g++.dg/ext/flexary16.C: Likewise.
	* g++.dg/ext/flexary26.C: Likewise.
	* g++.dg/ext/flexary27.C: Likewise.
	* g++.dg/ext/flexary7.C: Likewise.
	* g++.dg/ext/pr71290.C: Likewise.

From-SVN: r265636

From-SVN: r265634

2018-10-30  Aaron Sawdey  <acsawdey@linux.ibm.com>

	* config/rs6000/rs6000.md (bswapdi2): Force address into register
	if not in indexed or indirect form.
	(bswapdi2_load): Change predicate to indexed_or_indirect_operand.
	(bswapdi2_store): Ditto.
	* config/rs6000/rs6000.c (rs6000_force_indexed_or_indirect_mem): New
	helper function.
	* config/rs6000/rs6000-protos.h (rs6000_force_indexed_or_indirect_mem):
	Prototype for helper function.

From-SVN: r265632

gcc/ChangeLog:

	* doc/extend.texi (optimize): Clarify/expand attribute documentation.
	(target, pragma GCC optimize, pragma GCC target): Ditto.

From-SVN: r265631

From-SVN: r265628

       * method-serial.cc: Mark varible as potentially unused
        to silence warning.

From-SVN: r265627

If the allocator isn't default constructible then checking if the
default constructor throws in an exception specification makes the
declaration invalid. Use the type trait instead.

	PR libstdc++/87809
	* include/bits/forward_list.h (_Fwd_list_impl::_Fwd_list_impl()): Use
	trait in exception-specification instead of possibly invalid
	expression.
	* include/bits/stl_bvector.h (_Bvector_impl::_Bvector_impl()):
	Likewise.
	* include/bits/stl_list.h (_List_impl::_List_impl()): Likewise.
	* include/bits/stl_vector.h (_Vector_impl::_Vector_impl()): Likewise.
	* testsuite/23_containers/forward_list/cons/87809.cc: New test.
	* testsuite/23_containers/list/cons/87809.cc: New test.
	* testsuite/23_containers/vector/bool/cons/87809.cc: New test.
	* testsuite/23_containers/vector/cons/87809.cc: New test.

From-SVN: r265626

Previously the _M_Nb member was incremented before calling
_M_unchecked_set which meant that the bit being set was out of bounds.
It either set the wrong bit in an allocated word, or accessed beyond the
end of the allocated memory in the _M_w vector. The fix for the bug is
to update the _M_Nb member after using it as an index.

As an optimisation, when a new block needs to be appended the call to
_M_unchecked_set can be avoided by appending a block with the least
significant bit already set to the desired value.

	PR libstdc++/87784
	* include/tr2/dynamic_bitset (dynamic_bitset::push_back): When there
	are no unused bits in the last block, append a new block with the
	right value so the bit doesn't need to be set. Only increment size
	after setting the new bit, not before.
	* testsuite/tr2/dynamic_bitset/pr87784.cc: New test.

From-SVN: r265625

From-SVN: r265624

	* doc/extend.texi: Fix prototype and description of
	__builtin_expect_with_probability.

From-SVN: r265622

2018-10-30  Michael Ploujnikov  <michael.ploujnikov@oracle.com>

	* cgraph.h (clone_function_name_1): Replaced by new
	  clone_function_name_numbered that takes name as string; for
	  privatize_symbol_name_1 use only.
	  (clone_function_name): Renamed to
	  clone_function_name_numbered to be explicit about numbering.
	  (clone_function_name): New two-argument function that does
	  not number its output.
	  (clone_function_name): New three-argument function that
	  takes a number to append to its output.
	* cgraphclones.c (duplicate_thunk_for_node):
	  (clone_function_name_1): Renamed.
	  (clone_function_name_numbered): Two new functions.
	  (clone_function_name): Improved documentation.
	  (cgraph_node::create_virtual_clone): Use clone_function_name_numbered.
	* config/rs6000/rs6000.c (make_resolver_func): Ditto.
	* final.c (final_scan_insn_1): Use the new clone_function_name
	  without numbering.
	* multiple_target.c (create_dispatcher_calls): Ditto.
	  (create_target_clone): Ditto.
	* omp-expand.c (grid_expand_target_grid_body): Ditto.
	* omp-low.c (create_omp_child_function_name): Ditto.
	* omp-simd-clone.c (simd_clone_create): Ditto.
	* symtab.c (simd_symtab_node::noninterposable_alias): Use the
	  new clone_function_name without numbering.
2018-10-30  Michael Ploujnikov  <michael.ploujnikov@oracle.com>

	* lto-partition.c (privatize_symbol_name_1): Use
	  clone_function_name_numbered.
2018-10-30  Michael Ploujnikov  <michael.ploujnikov@oracle.com>

	* gcc.dg/tree-prof/cold_partition_label.c: Update for cold
	  section names without numbers.
	* gcc.dg/tree-prof/section-attr-1.c: Ditto.
	* gcc.dg/tree-prof/section-attr-2.c: Ditto.
	* gcc.dg/tree-prof/section-attr-3.c: Ditto.

From-SVN: r265621

PR bootstrap/87747 would have been significantly easier to track down if
the pool allocator had faulted an attempt to configure it to allocate
zero-sized objects.  Instead, this slipped through and we later hit
memory corruption when the assumed size turned out to be different to
the configured size.

While, theoretically, there might be a use case for this, it seems
unlikely to me that GCC would have such a use.  So this patch adds a
checking assert that the object size is not zero.

	* alloc-pool.h (base_pool_allocator <TBlockAllocator>::initialize):
	Assert that the allocation size is not zero.

From-SVN: r265620

2018-10-30  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/87800
	* tree-vect-slp.c (vect_build_slp_tree_2): Reject any
	non-induction or reduction PHIs.

From-SVN: r265619

Fixes bug 87330 by invoking  df_note_add_problem to recompute REG_DEAD and REG_UNUSED notes before analysis.

From-SVN: r265618