* doc/extend.texi (Extended Asm <Clobbers>): Rename to
	"Clobbers and Scratch Registers".  Add paragraph on
	alternative to clobbers for scratch registers and OpenBLAS
	example.

From-SVN: r253701

	* doc/extend.texi (Clobbers): Correct vax example.  Delete old
	example of a memory input for a string of known length.  Move
	commentary out of table.  Add a number of new examples
	covering array memory inputs.
testsuite/
	* gcc.target/i386/asm-mem.c: New test.

From-SVN: r253700

re PR tree-optimization/82493 (UBSAN in gcc/sbitmap.c:368:28: runtime error: shift exponent 64 is too large for 64-bit type 'long unsigned int')

	PR tree-optimization/82493
	* sbitmap.c (bitmap_bit_in_range_p): Fix the implementation.
	(test_range_functions): New function.
	(sbitmap_c_tests): Likewise.
	* selftest-run-tests.c (selftest::run_tests): Run new tests.
	* selftest.h (sbitmap_c_tests): New function.

	* tree-ssa-dse.c (live_bytes_read): Fix thinko.

From-SVN: r253699

From-SVN: r253696

	PR target/82498
	* config/i386/i386.md (*ashl<mode>3_mask_1,
	*<shift_insn><mode>3_mask_1, *<rotate_insn><mode>3_mask_1,
	*<btsc><mode>_mask_1, *btr<mode>_mask_1): New define_insn_and_split
	patterns.

	* gcc.target/i386/pr82498-1.c: New test.
	* gcc.target/i386/pr82498-2.c: New test.

From-SVN: r253695

    
    We were looking for the " = " before the optional package name that
    appears for an indirect reference, but the exporter was putting it
    after.
    
    Test is https://golang.org/cl/70290.
    
    Reviewed-on: https://go-review.googlesource.com/70330

From-SVN: r253694

https://gcc.gnu.org/ml/gcc-patches/2017-10/msg00784.html
	* cp-tree.h (cp_expr): Add const operator * and operator->
	accessors.
	(cp_tree_node_structure_enum): Delete TS_CP_BINDING,
	TS_CP_WRAPPER, LAST_TS_CP_ENUM.

From-SVN: r253693

	* profile-count.c (safe_scale_64bit): Fix GCC4.x path.
	(profile_probability): Set max_probability
	to (uint32_t) 1 << (n_bits - 2) and update accessors to avoid overlfows
	in temporaries.
	* profile-count.c (profile_probability::differs_from_p): Do not
	rely on max_probaiblity == 10000

	* gcc.dg/predict-13.c: Update template for probaility change.
	* gcc.dg/predict-8.c: Likewise.

From-SVN: r253692

	* tree-ssa-dse.c (valid_ao_ref_for_dse): Reject ao_refs with
	negative offsets.

From-SVN: r253691

The patch improves our C/C++ frontends' handling of missing
symbols, by making c_parser_require and cp_parser_require use
"better" locations for the diagnostic, and insert fix-it hints,
under certain circumstances (see the comments in the patch for
full details).

For example, for this code with a missing semicolon:

  $ cat test.c
  int missing_semicolon (void)
  {
    return 42
  }

  trunk currently emits:

  test.c:4:1: error: expected ';' before '}' token
   }
   ^

This patch adds a fix-it hint for the missing semicolon, and puts
the error at the location of the missing semicolon, printing the
followup token as a secondary location:

  test.c:3:12: error: expected ';' before '}' token
     return 42
              ^
              ;
   }
   ~

More examples can be seen in the test cases.

gcc/c-family/ChangeLog:
	* c-common.c (enum missing_token_insertion_kind): New enum.
	(get_missing_token_insertion_kind): New function.
	(maybe_suggest_missing_token_insertion): New function.
	* c-common.h (maybe_suggest_missing_token_insertion): New decl.

gcc/c/ChangeLog:
	* c-parser.c (c_parser_require): Add "type_is_unique" param and
	use it to guard calls to maybe_suggest_missing_token_insertion.
	(c_parser_parms_list_declarator): Override default value of new
	"type_is_unique" param to c_parser_require.
	(c_parser_asm_statement): Likewise.
	* c-parser.h (c_parser_require): Add "type_is_unique" param,
	defaulting to true.

gcc/cp/ChangeLog:
	* parser.c (get_required_cpp_ttype): New function.
	(cp_parser_error_1): Call it, using the result to call
	maybe_suggest_missing_token_insertion.

gcc/testsuite/ChangeLog:
	* c-c++-common/cilk-plus/AN/parser_errors.c: Update expected
	output to reflect changes to reported locations of missing
	symbols.
	* c-c++-common/cilk-plus/AN/parser_errors2.c: Likewise.
	* c-c++-common/cilk-plus/AN/parser_errors3.c: Likewise.
	* c-c++-common/cilk-plus/AN/pr61191.c: Likewise.
	* c-c++-common/gomp/pr63326.c: Likewise.
	* c-c++-common/missing-close-symbol.c: Likewise, also update for
	new fix-it hints.
	* c-c++-common/missing-symbol.c: Likewise, also add test coverage
	for missing colon in ternary operator.
	* g++.dg/cpp1y/digit-sep-neg.C: Likewise.
	* g++.dg/cpp1y/pr65202.C: Likewise.
	* g++.dg/missing-symbol-2.C: New test case.
	* g++.dg/other/do1.C: Update expected output to reflect
	changes to reported locations of missing symbols.
	* g++.dg/parse/error11.C: Likewise.
	* g++.dg/template/error11.C: Likewise.
	* gcc.dg/missing-symbol-2.c: New test case.
	* gcc.dg/missing-symbol-3.c: New test case.
	* gcc.dg/noncompile/940112-1.c: Update expected output to reflect
	changes to reported locations of missing symbols.
	* gcc.dg/noncompile/971104-1.c: Likewise.
	* obj-c++.dg/exceptions-6.mm: Likewise.
	* obj-c++.dg/pr48187.mm: Likewise.
	* objc.dg/exceptions-6.m: Likewise.

From-SVN: r253690

PR c/82301 - Updated test case g++.dg/ext/attr-ifunc-1.C (and others) in r253041 segfault on powerpc64

PR c/82301 - Updated test case g++.dg/ext/attr-ifunc-1.C (and others) in r253041 segfault on powerpc64
PR c/82435 - new __attribute__((alias)) warning gets in the way

gcc/ChangeLog:

	PR other/82301
	PR c/82435
	* cgraphunit.c (maybe_diag_incompatible_alias): New function.
	(handle_alias_pairs): Call it.
	* common.opt (-Wattribute-alias): New option.
	* doc/extend.texi (ifunc attribute): Discuss C++ specifics.
	* doc/invoke.texi (-Wattribute-alias): Document.

gcc/testsuite/ChangeLog:

	PR other/82301
	PR c/82435
	* g++.dg/ext/attr-ifunc-1.C: Update.
	* g++.dg/ext/attr-ifunc-2.C: Same.
	* g++.dg/ext/attr-ifunc-3.C: Same.
	* g++.dg/ext/attr-ifunc-4.C: Same.
	* g++.dg/ext/attr-ifunc-5.C: Same.
	* g++.dg/ext/attr-ifunc-6.C: New test.
	* g++.old-deja/g++.abi/vtable2.C: Update.
	* gcc.dg/attr-ifunc-6.c: New test.
	* gcc.dg/attr-ifunc-7.c: New test.
	* gcc.dg/pr81854.c: Update.
	* lib/target-supports.exp: Update.

From-SVN: r253688

In r251026 (aka 3fe34694f0990d1d649711ede0326497f8a849dc,
"C/C++: show pertinent open token when missing a close token")
I copied part of cp_parser_error into cp_parser_required_error,
leading to duplication of code.

This patch eliminates this duplication by merging the two copies of the
code into a new cp_parser_error_1 subroutine.

Doing so removes an indentation level, making the patch appear to have
more churn than it really does.

The patch also undoes the change to g++.dg/parse/pragma2.C, as the
old behavior is restored.

From-SVN: r253686

2017-10-12  Vladimir Makarov  <vmakarov@redhat.com>

	Revert
	2017-10-11  Vladimir Makarov  <vmakarov@redhat.com>
	PR sanitizer/82353
	* lra.c (collect_non_operand_hard_regs): Don't ignore operator
	locations.
	* lra-lives.c (bb_killed_pseudos, bb_gen_pseudos): Move up.
	(make_hard_regno_born, make_hard_regno_dead): Update
	bb_killed_pseudos and bb_gen_pseudos.

From-SVN: r253685

From-SVN: r253684

	* config/alpha/alpha.c (alpha_split_conditional_move):
	Use std::swap instead of manually swapping.
	(alpha_stdarg_optimize_hook): Ditto.
	(alpha_canonicalize_comparison): Ditto.

From-SVN: r253681

	* tree-loop-distribution.c (struct builtin_info): New struct.
	(struct partition): Refactor fields into struct builtin_info.
	(partition_free): Free struct builtin_info.
	(build_size_arg_loc, build_addr_arg_loc): Delete.
	(generate_memset_builtin, generate_memcpy_builtin): Get memory range
	information from struct builtin_info.
	(find_single_drs): New function refactored from classify_partition.
	Also moved builtin validity checks to this function.
	(compute_access_range, alloc_builtin): New functions.
	(classify_builtin_st, classify_builtin_ldst): New functions.
	(classify_partition): Refactor code into functions find_single_drs,
	classify_builtin_st and classify_builtin_ldst.
	(distribute_loop): Don't do runtime alias check when distributing
	loop nest.
	(find_seed_stmts_for_distribution): New function.
	(pass_loop_distribution::execute): Refactor code finding seed
	stmts into above function.  Support distribution for the innermost
	two-level loop nest.  Adjust dump information.

	gcc/testsuite
	* gcc.dg/tree-ssa/ldist-28.c: New test.
	* gcc.dg/tree-ssa/ldist-29.c: New test.
	* gcc.dg/tree-ssa/ldist-30.c: New test.
	* gcc.dg/tree-ssa/ldist-31.c: New test.

From-SVN: r253680

	* tree-loop-distribution.c: Adjust the general comment.
	(NUM_PARTITION_THRESHOLD): New macro.
	(ssa_name_has_uses_outside_loop_p): Support loop nest distribution.
	(classify_partition): Skip builtin pattern of loop nest's inner loop.
	(merge_dep_scc_partitions): New parameter ignore_alias_p and use it
	in call to build_partition_graph.
	(finalize_partitions): New parameter.  Make loop distribution more
	conservative by fusing more partitions.
	(distribute_loop): Don't do runtime alias check in case of loop nest
	distribution.
	(find_seed_stmts_for_distribution): New function.
	(prepare_perfect_loop_nest): New function.
	(pass_loop_distribution::execute): Refactor code finding seed stmts
	and loop nest into above functions.  Support loop nest distribution.
	Adjust dump information accordingly.

	gcc/testsuite
	* gcc.dg/tree-ssa/ldist-7.c: Adjust test string.
	* gcc.dg/tree-ssa/ldist-16.c: Ditto.
	* gcc.dg/tree-ssa/ldist-25.c: Ditto.
	* gcc.dg/tree-ssa/ldist-33.c: New test.

From-SVN: r253679

tree-loop-distribution.c (break_alias_scc_partitions): Add comment and set PTYPE_SEQUENTIAL for merged partition.

	* tree-loop-distribution.c (break_alias_scc_partitions): Add comment
	and set PTYPE_SEQUENTIAL for merged partition.

From-SVN: r253678

re PR tree-optimization/69728 (internal compiler error: in outer_projection_mupa, at graphite-sese-to-poly.c:1175)

2017-10-12  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/69728
	Revert
	2017-09-19  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/69728
	* graphite-sese-to-poly.c (schedule_error): New global.
	(add_loop_schedule): Handle empty domain by failing the
	schedule.
	(build_original_schedule): Handle schedule_error.

	* graphite-sese-to-poly.c (add_loop_schedule): Handle empty
	domain by returning an unchanged schedule.

	* gcc.dg/graphite/pr69728.c: Adjust to reflect we can handle
	the loop now.  Remove unrelated undefined behavior.

From-SVN: r253677

genrecog.c (validate_pattern): For VEC_SELECT verify that CONST_INT selectors are 0 to GET_MODE_NUNITS (imode) - 1.

	* genrecog.c (validate_pattern): For VEC_SELECT verify that
	CONST_INT selectors are 0 to GET_MODE_NUNITS (imode) - 1.

From-SVN: r253676

	* Makefile.in (TAGS): Merge all the *.def files into one pattern.
	Handle params.def.

From-SVN: r253674

	PR c++/82159
	* expr.c (store_field): Don't optimize away bitsize == 0 store
	from CALL_EXPR with addressable return type.

	* g++.dg/opt/pr82159-2.C: New test.

From-SVN: r253673

	PR target/82353
	* gcc.target/i386/i386.exp (tests): Revert the '.C' extension change.
	* gcc.target/i386/pr82353.C: Moved to ...
	* g++.dg/ubsan/pr82353.C: ... here.  Restrict to i?86/x86_64 && lp64.

From-SVN: r253672

TARGET_ISEL64 just means TARGET_ISEL && TARGET_POWERPC64.  Since
everywhere it is used uses :GPR already, we can just as well use
TARGET_ISEL always.


	* config/rs6000/rs6000.h (TARGET_ISEL64): Delete.
	* config/rs6000/rs6000.md (sel): Delete mode attribute.
	(mov<mode>cc, isel_signed_<mode>, isel_unsigned_<mode>,
	*isel_reversed_signed_<mode>, *isel_reversed_unsigned_<mode>): Use
	TARGET_ISEL instead of TARGET_ISEL<sel>.

From-SVN: r253671

From-SVN: r253670

From-SVN: r253667

go-system.h (__STDC_FORMAT_MACROS): Define before including any system header files, as is done in ../system.h.

	* go-system.h (__STDC_FORMAT_MACROS): Define before including any
	system header files, as is done in ../system.h.

From-SVN: r253666

This removes output_isel.  Instead, the define_insn's now output the
isel instructions directly.

It adds a reg_or_zero operand predicate, too, because the reg_or_cint
predicate is too lax here.  Also use it in the "reversed" variants of
the instructions.


	* config/rs6000/predicates.md (zero_constant, all_ones_constant):
	Move up in file.
	(reg_or_cint_operand): Fix comment.
	(reg_or_zero_operand): New predicate.
	* config/rs6000/rs6000-protos.h (output_isel): Delete.
	* config/rs6000/rs6000.c (output_isel): Delete.
	* config/rs6000/rs6000.md (isel_signed_<mode>): Use reg_or_zero_operand
	instead of reg_or_cint_operand.  Output instruction directly (not via
	output_isel).
	(isel_unsigned_<mode>): Ditto.
	(*isel_reversed_signed_<mode>): Use reg_or_zero_operand instead of
	gpc_reg_operand.  Add an instruction alternative for this.  Output
	instruction directly.
	(*isel_reversed_unsigned_<mode>): Ditto.

From-SVN: r253665

    
    Reviewed-on: https://go-review.googlesource.com/69891

From-SVN: r253664

	* config/i386/i386.c (ix86_canonicalize_comparison): New function.
	(TARGET_CANONICALIZE_COMPARISON): Define.

testsuite/ChangeLog:

	* gcc.target/i386/387-ficom-2.c: New test.

From-SVN: r253663

	PR middle-end/80421
	* gcc.c-torture/execute/pr80421.c: New test.

From-SVN: r253662

	PR tree-optimization/78558
	* gcc.dg/vect/pr78558.c: New test.

From-SVN: r253661

	PR c++/82414
	* g++.dg/lto/pr82414_0.C: New test.

From-SVN: r253660

	PR c++/78523
	* g++.dg/cpp1y/pr78523.C: New test.

From-SVN: r253659

	PR c++/80194
	* g++.dg/cpp1y/pr80194.C: New test.

From-SVN: r253658

/gcc
2017-10-11  Qing Zhao  <qing.zhao@oracle.com>

	PR target/81422
	* config/aarch64/aarch64.c (aarch64_load_symref_appropriately):
	Check whether the dest is REG before adding REG_EQUIV note.

/gcc/testsuite
2017-10-11  Qing Zhao  <qing.zhao@oracle.com>

	PR target/81422
      	* gcc.target/aarch64/pr81422.C: New test.

From-SVN: r253657

2017-10-11  Vladimir Makarov  <vmakarov@redhat.com>

	PR sanitizer/82353
	* lra.c (collect_non_operand_hard_regs): Don't ignore operator
	locations.
	* lra-lives.c (bb_killed_pseudos, bb_gen_pseudos): Move up.
	(make_hard_regno_born, make_hard_regno_dead): Update
	bb_killed_pseudos and bb_gen_pseudos.

2017-10-11  Vladimir Makarov  <vmakarov@redhat.com>

	PR sanitizer/82353
	* gcc.target/i386/i386.exp (tests): Permit '.C' extension.
	* gcc.target/i386/pr82353.C: New.

From-SVN: r253656

https://gcc.gnu.org/ml/gcc-patches/2017-10/msg00693.html
	gcc/
	* incpath.h (enum incpath_kind): Name enum, prefix values.
	(add_path, add_cpp_dir_path, get_added_cpp_dirs): Use incpath_kind.
	* incpath.c (heads, tails): Use INC_MAX.
	(add_env_var_paths, add_standard_paths): Use incpath_kind.
	(merge_include_chains, split_quote_chain,
	register_include_chains): Update incpath_kind names.
	(add_cpp_dir_path, add_path, get_added_cpp_dirs): Use incpath_kind.
	* config/darwin-c.c (add_system_framework_path): Update incpath_kind
	names.
	(add_framework_path, darwin_register_objc_includes): Likewise.
	* config/vms/vms-c.c (vms_c_register_includes): Likewise.
	gcc/c-family/
	* c-opts.c (add_prefixed_path): Change chain to incpath_kind.
	(c_common_handle_option): Update incpath_kind names.
	gcc/fortran/
	* cpp.c (gfc_cpp_add_include_path): Update incpath_e names.
	(gfc_cpp_add_include_path_after): Likewise.

From-SVN: r253654

	* config/i386/i386.md (*cmp<X87MODEF:mode>_<SWI24:mode>_i387):
	Do not use float_operator operator predicate.
	(*cmp<X87MODEF:mode>_<SWI24:mode>_cc_i387): Ditto.
	* config/i386/predicates.md (float_operator): Remove predicate.

	* config/i386/i386.md (*jcc<mode>_0_i387): Remove insn pattern.
	(*jccxf_i387): Ditto.
	(*jcc<mode>_i387): Ditto.
	(*jccu<mode>_i387): Ditto.
	(*jcc<X87MODEF:mode>_<SWI24:mode>_i387): Ditto.
	(*jcc_*_i387 splitters): Remove.
	* config/i386/i386-protos.h (ix86_split_fp_branch): Remove prototype.
	* config/i386/i386.c (ix86_split_fp_branch): Remove.
	* config/i386/predicates.md (ix86_swapped_fp_comparison_operator):
	Remove predicate.

testsuite/ChangeLog:

	* gcc.target/i386/387-ficom-1.c: New test.

From-SVN: r253653

	* profile-count.h (slow_safe_scale_64bit): New function.
	(safe_scale_64bit): New inline.
	(profile_count::max_safe_multiplier): Remove; use safe_scale_64bit.
	* profile-count.c: Include wide-int.h
	(slow_safe_scale_64bit): New.

From-SVN: r253652