2016-10-25  Thomas Preud'homme  <thomas.preudhomme@arm.com>

    gcc/
    * config/arm/constraints.md (Q constraint): Document its use for
    Thumb-1.
    (Pf constraint): New constraint for relaxed, consume or relaxed memory
    models.
    * config/arm/sync.md (atomic_load<mode>): Add new ARMv8-M Baseline only
    alternatives to allow any register when memory model matches Pf and
    thus lda is used, but only low registers otherwise.  Use unpredicated
    output template for Thumb-1 targets.
    (atomic_store<mode>): Likewise for stl.
    (arm_load_exclusive<mode>): Add new ARMv8-M Baseline only alternative
    whose output template does not have predication.
    (arm_load_acquire_exclusive<mode>): Likewise.
    (arm_load_exclusivesi): Likewise.
    (arm_load_acquire_exclusivesi): Likewise.
    (arm_store_release_exclusive<mode>): Likewise.
    (arm_store_exclusive<mode>): Use unpredicated output template for
    Thumb-1 targets.

From-SVN: r241507

	* internal-fn.def (LAUNDER): New internal function.
	* internal-fn.c (expand_LAUNDER): New function.
c-family/
	* c-common.h (enum rid): Add RID_BUILTIN_LAUNDER.
	* c-common.c (c_common_reswords): Add __builtin_launder.
cp/
	* cp-tree.h (finish_builtin_launder): Declare.
	* parser.c (cp_parser_postfix_expression): Handle RID_BUILTIN_LAUNDER.
	* semantics.c (finish_builtin_launder): New function.
	* pt.c (tsubst_copy_and_build): Handle instantiation of IFN_LAUNDER.
	* constexpr.c (cxx_eval_internal_function): Handle IFN_LAUNDER.
	(potential_constant_expression_1): Likewise.
testsuite/
	* g++.dg/cpp1z/launder1.C: New test.
	* g++.dg/cpp1z/launder2.C: New test.

From-SVN: r241506

From-SVN: r241505

gcc/
	New avt target pass to work around performance loss by PR fix.
	PR target/71676
	PR target/71678
	* config/avr/avr.md (casesi_<mode>_sequence) [qi,hi]: New insn.
	(*cmp<mode>) [qi,qq,uqq,hi,hq,uhq,ha,uha]: Rename to cmp<mode>3.
	* config/avr/predicates.md (extend_operator): New.
	* config/avr/avr-passes.def (avr_pass_casesi): Register new pass.
	* config/avr/avr-protos.h (avr_casei_sequence_check_operands)
	(make_avr_pass_casesi): New prototypes.
	* config/avr/avr.c (print-rtl.h): Include it.
	(pass_data avr_pass_data_casesi): Data for new pass.
	(avr_pass_casesi): New class implementing rtl_opt_pass .avr-casesi.
	(make_avr_pass_casesi, avr_parallel_insn_from_insns)
	(avr_is_casesi_sequence, avr_casei_sequence_check_operands)
	(avr_optimize_casesi): New functions.
gcc/testsuite/
	PR target/71676
	PR target/71678
	* gcc.target/avr/pr71676-2.c: New test.

From-SVN: r241504

gcc/
	PR target/71676
	PR target/71678
	* config/avr/avr.md (casesi): Rewrite avoiding subregs of SI.
gcc/testsuite/
	PR target/71676
	PR target/71678
	* gcc.target/avr/pr71676-1.c: New test.
	* gcc.target/avr/pr71676-3.c: New test.
	* gcc.target/avr/pr71676.c: New test.
	* gcc.target/avr/pr71678.c: New test.

Co-Authored-By: Pitchumani Sivanupandi <pitchumani.sivanupandi@microchip.com>

From-SVN: r241503

From-SVN: r241502

test_frame_common.h: Add noclone attribute such that cloned verions of tested functions are not created.

gcc/testsuite/ChangeLog:

2016-10-24  Kugan Vivekanandarajah  <kuganvi@linaro.org>

	* gcc.target/aarch64/test_frame_common.h: Add noclone attribute
	such that cloned verions of tested functions are not created.

From-SVN: r241499

re PR libfortran/77828 (Linking gfortran-7 compiled program with libgfortran of 5.x allowed but crashes when containing write to string)

2016-10-24  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR fortran/77828
	* io/io.h (st_parameter_dt): Reorder for readability and sanity.
	* io/transfer.c (data_transfer_init): Remove TODO and enable the
	runtime error message, rec= specifier not allowed in STREAM
	access.
	* libtool-version: Bump major version of libgfortran to 4.

	* ioparm.def: Reorder dt parameters to match libgfortran.
	* libgfortran.h: Swap definitions of GFC_INTERNAL_UNIT and
	GFC_INTERNAL_UNIT4.

From-SVN: r241497

2016-10-24  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/71895
	* interface.c (gfc_compare_derived_types):  Convert gcc_assert()
	to a gfc_internal_error() to prevent an ICE.

2016-10-24  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/71895
	* gfortran.dg/pr71895.f90: New test.

From-SVN: r241493

	* dwarf2out.c (gen_subprogram_die): Add DW_AT_reference or
	DW_AT_rvalue_reference attributes.

	* cp-objcp-common.c (cp_decl_dwarf_attribute): Handle DW_AT_reference
	and DW_AT_rvalue_reference.

	* g++.dg/debug/dwarf2/ref-2.C: New test.

From-SVN: r241492

	PR libgcc/78064
	* unwind-c.c: Include auto-target.h.

From-SVN: r241491

2016-10-24  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * c-common.c (c_common_truthvalue_conversion): Warn for
        multiplications in boolean context.  Fix the quoting of '<<' and '<'
        in the shift warning.

gcc:
2016-10-24  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * doc/invoke.text (Wint-in-bool-context): Update documentation.
        * value-prof.c (stringop_block_profile): Fix a warning.

testsuite:
2016-10-24  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * c-c++-common/Wint-in-bool-context-3.c: New test.

From-SVN: r241490

gcc/ChangeLog:

	PR middle-end/77735
	* builtins.c (string_length): New function.
	(c_strlen): Use string_length.  Correctly handle wide strings.
	* gimple-ssa-sprintf.c (target_max_value, target_size_max): New
	functions.
	(target_int_max): Call target_max_value.
	(format_result::knownrange): New data member.
	(fmtresult::fmtresult): Define default constructor.
	(format_integer): Use it and set format_result::knownrange.
	Handle global constants.
	(format_floating_max): Add third argument.
	(format_floating): Recompute maximum value for %a for each argument.
	(get_string_length): Use fmtresult default ctor.
	(format_string): Set format_result::knownrange.
	(format_directive): Check format_result::knownrange.
	(add_bytes): Same.  Correct caret placement in diagnostics.
	(pass_sprintf_length::compute_format_length): Set
	format_result::knownrange.
	(pass_sprintf_length::handle_gimple_call): Use target_size_max.

gcc/testsuite/ChangeLog:

	PR middle-end/77735
	* gcc.dg/tree-ssa/builtin-sprintf-2.c: Add test cases.
	* gcc.dg/tree-ssa/builtin-sprintf-warn-1.c: Same.
	* gcc.dg/tree-ssa/builtin-sprintf-warn-2.c: Same.
	* gcc.dg/tree-ssa/builtin-sprintf-warn-3.c: Adjust/relax.
	* gcc.dg/tree-ssa/builtin-sprintf-warn-4.c: Add test cases.
	* gcc.dg/tree-ssa/builtin-sprintf-warn-6.c: XFAIL for LP64 only.
	* gcc.dg/tree-ssa/builtin-sprintf.c: Add test cases.

From-SVN: r241489

	* src/filesystem/ops.cc (is_empty): Fix error handling.
	* testsuite/experimental/filesystem/operations/is_empty.cc: New test.

From-SVN: r241488

	PR libstdc++/71337
	* src/filesystem/ops.cc (temp_directory_path): Pass error_code
	argument to other filesystem operations.
	* testsuite/experimental/filesystem/operations/temp_directory_path.cc:
	Add testcase for inaccessible directory.

From-SVN: r241487

	* src/filesystem/dir.cc (open_dir): Return same value for errors
	whether ignored or not.
	(_Dir::advance(error_code*, directory_options)): Return false on
	error.
	(directory_iterator(const path&, directory_options, error_code*)):
	Create end iterator on error (LWG 2723).
	(recursive_directory_iterator(const path&, directory_options,
	error_code*)): Likewise.
	* testsuite/experimental/filesystem/iterators/directory_iterator.cc:
	Update expected behaviour on error.
	* testsuite/experimental/filesystem/iterators/
	recursive_directory_iterator.cc: Likewise.

From-SVN: r241486

	* src/filesystem/ops.cc (close_fd): Remove.
	(do_copy_file): Just use close(3) instead of close_fd, to prevent
	retrying on error.

From-SVN: r241485

	* src/filesystem/ops.cc (do_copy_file): Return an error if either
	source or destination is not a regular file.
	(copy): Update comment to refer to LWG 2681. Implement 2682 and 2683
	resolutions.
	(read_symlink): Add missing ec.clear().
	* testsuite/experimental/filesystem/operations/copy.cc: Update
	expected behaviour for copying directories with create_symlinks.
	Verify that error_code arguments are cleared if there's no error.
	* testsuite/experimental/filesystem/operations/read_symlink.cc: New.

From-SVN: r241484

2016-10-24  Moritz Klammler  <moritz@glammler.eu>

	* download_prerequisites: Conditionally verify checksums of
	downloaded pacakges.  Add help text.
	* prerequisites.md5: New file.
	* prerequisites.sha512: New file.

From-SVN: r241483

	* trans-intrinsic.c (gfc_conv_intrinsic_minmax): Use VAR_P (x)
	instead of TREE_CODE (x) == VAR_DECL.
	* trans-expr.c (gfc_class_vptr_get, gfc_class_len_get,
	gfc_class_len_or_zero_get, gfc_get_vptr_from_expr,
	gfc_conv_string_length, conv_base_obj_fcn_val,
	gfc_conv_procedure_call, gfc_trans_assignment_1): Likewise.
	* trans-openmp.c (gfc_omp_predetermined_sharing,
	gfc_omp_disregard_value_expr, gfc_omp_private_debug_clause,
	gfc_trans_omp_atomic, gfc_trans_omp_do): Likewise.
	* trans-io.c (nml_get_addr_expr): Likewise.
	* trans-decl.c (gfc_finish_decl, gfc_build_qualified_array,
	gfc_get_symbol_decl, gfc_get_fake_result_decl,
	gfc_trans_deferred_vars, gfc_trans_use_stmts,
	generate_local_decl): Likewise.
	* trans-array.c (trans_array_constructor, trans_array_bound_check,
	build_class_array_ref, gfc_array_init_size,
	gfc_trans_auto_array_allocation, gfc_trans_g77_array,
	gfc_trans_dummy_array_bias, gfc_alloc_allocatable_for_assignment,
	gfc_trans_deferred_array): Likewise.
	* trans.c (gfc_build_array_ref): Likewise.  Use
	VAR_OR_FUNCTION_DECL_P (x) instead of TREE_CODE (x) == VAR_DECL
	|| TREE_CODE (x) == FUNCTION_DECL.

From-SVN: r241482

	* config/i386/i386.c (ix86_in_large_data_p, ix86_expand_builtin): Use
	VAR_P (x) instead of TREE_CODE (x) == VAR_DECL.

From-SVN: r241481

	* cxx-pretty-print.c (pp_cxx_check_constraint): Use VAR_P (x)
	instead of TREE_CODE (x) == VAR_DECL.
	* constraint.cc (get_concept_definition): Likewise.
	(finish_shorthand_constraint): Likewise.
	* init.c (warn_placement_new_too_small): Likewise.
	* cp-gimplify.c (cp_genericize_r): Likewise.

From-SVN: r241480

Cross-port exception-safety and move fixes of std::any to
std::experimental::any.
* include/experimental/any (operator=(const any&)):
Make strongly exception-safe.
(operator=(any&&)): clear() unconditionally in the case where
rhs has a value.
(_Manager_internal<_Tp>::_S_manage): Move in _Op_xfer, don't copy.
* testsuite/experimental/any/assign/2.cc: Adjust.
* testsuite/experimental/any/assign/exception.cc: New.
* testsuite/experimental/any/cons/2.cc: Adjust.
* testsuite/experimental/any/misc/any_cast_neg.cc: Ajust.

From-SVN: r241479

2016-10-24  Richard Biener  <rguenther@suse.de>

	PR testsuite/71491
	* gcc.dg/vect/slp-43.c: Adjust for !vect_hw_misalign.
	* gcc.dg/vect/slp-45.c: Likewise.

From-SVN: r241478

Cross-port the latest resolution of LWG2756 and some
bug-fixes to experimental::optional.
PR libstdc++/77288
PR libstdc++/77727
* include/experimental/optional (_Optional_base):
Remove constructors that take a _Tp.
(__is_optional_impl, __is_optional): Remove.
(__converts_from_optional): New.
(optional(_Up&&)): Fix constraints, call base with in_place.
(optional(const optional<_Up>&)): Fix constraints, use emplace.
(optional(optional<_Up>&&)): Likewise.
(operator=(_Up&&)): Fix constraints.
(operator=(const optional<_Up>&)): Likewise.
(operator=(optional<_Up>&&)): Likewise.
(emplace(_Args&&...)): Constrain.
(emplace(initializer_list<_Up>, _Args&&...)): Likewise.
* testsuite/experimental/optional/77288.cc: New.
* testsuite/experimental/optional/assignment/5.cc: Adjust.
* testsuite/experimental/optional/cons/77727.cc: New.
* testsuite/experimental/optional/cons/value.cc: Adjust.

From-SVN: r241476

	* include/bits/stl_vector.h (vector::_M_data_ptr, vector::data):
	Change return type of non-standard C++98 extension to match C++11.

From-SVN: r241475

re PR debug/77985 (DW_AT_comp_dir is omitted when filename is absolute and the file does not contain a specific typedef)

2016-10-24  Ximin Luo  <infinity0@pwned.gg>

	PR debug/77985
	* dwarf2out.c (file_table_relative_p): Remove.
	(gen_compile_unit_die, dwarf2out_early_finish): Emit DW_AT_comp_dir
	also for absolute paths.
	* doc/tm.texi: Update.
	* doc/tm.texi.in (SDB and DWARF) <TARGET_FORCE_AT_COMP_DIR>: Remove.
	* target.def (force_at_comp_dir): Remove hook.
	* config/darwin.h (TARGET_FORCE_AT_COMP_DIR): Remove define.

From-SVN: r241473

From-SVN: r241472

	* check_GNU_style.sh (remove_testsuite): New function.
	Use it to remove testsuite from the diff.

From-SVN: r241471

tree-vrp.c (evrp_dom_walker::before_dom_children): Ignore backedges when identifying the single predecessor to take conditional...

2016-10-24  Richard Biener  <rguenther@suse.de>

	* tree-vrp.c (evrp_dom_walker::before_dom_children): Ignore
	backedges when identifying the single predecessor to take
	conditional info from.  Use SCEV to get at ranges for loop IVs.
	* lto-streamer-out.c (lto_write_mode_table): CSE inner mode to
	avoid false warning.

	* gcc.dg/tree-ssa/cunroll-13.c: Disable EVRP.
	* gcc.dg/tree-ssa/pr21458.c: Likewise.
	* gcc.dg/tree-ssa/pr21458-2.c: New testcase for EVRP.

From-SVN: r241470

	* gcc-interface/Make-lang.in (lang_checks_parallelized): New target.
	(check_gnat_parallelize): Likewise.

From-SVN: r241469

re PR target/78093 ([avr] New variable attribute "absdata" and option "-mabsdata" to enable LDS / STS on Reduced Tiny)

gcc/
	PR target/78093
	* doc/extend.texi (AVR Variable Attributes) [absdata]: Document it.
	* config/avr/avr.c (AVR_SYMBOL_FLAG_TINY_ABSDATA): New macro.
	(avr_address_tiny_absdata_p): New static function.
	(avr_legitimate_address_p, avr_legitimize_address) [AVR_TINY]: Use
	it to determine validity of constant addresses.
	(avr_attribute_table) [absdata]: New variable attribute...
	(avr_handle_absdata_attribute): ...and handler.
	(avr_decl_absdata_p): New static function.
	(avr_encode_section_info) [AVR_TINY]: Use it to add flag
	AVR_SYMBOL_FLAG_TINY_ABSDATA to respective symbols_refs.
	(avr_address_cost) [AVR_TINY]: absdata addresses cost 2.
gcc/testsuite/
	PR target/78093
	* lib/target-supports.exp (check_effective_target_avr_tiny): New proc.
	* gcc.target/avr/torture/tiny-absdata-1.c: New test.

From-SVN: r241468

re PR tree-optimization/78076 (Conditional jump or move depends on uninitialised value @ tree-vect-loop.c:2307)

2016-10-24  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/78076
	* tree-ssa-loop-split.c (tree_ssa_split_loops): Reset aux
	also on the loop tree root.

From-SVN: r241467

2016-10-24  Andre Vieira  <andre.simoesdiasvieira@arm.com>

	* gcc.target/arm/pure-code/pure-code.exp: Restore saved globals.

From-SVN: r241466

	* config/i386/i386.c (ix86_fold_builtin): Handle
	IX86_BUILTIN_BEXTR{,I}{32,64}, IX86_BUILTIN_BZHI{32,64},
	IX86_BUILTIN_PDEP{32,64} and IX86_BUILTIN_PEXT{32,64}.
	(ix86_gimple_fold_builtin): Handle IX86_BUILTIN_BZHI{32,64},
	IX86_BUILTIN_PDEP{32,64} and IX86_BUILTIN_PEXT{32,64}.

	* gcc.target/i386/bmi2-pext-1.c: New test.
	* gcc.target/i386/bmi2-pdep-1.c: New test.
	* gcc.target/i386/bmi2-bzhi-3.c: New test.
	* gcc.target/i386/tbm-bextri-1.c: New test.
	* gcc.target/i386/bmi-bextr-6.c: New test.

From-SVN: r241465

	PR target/77483
	* gcc.target/i386/mask-unpack.c (dg-options): Add -mno-stackrealign.
	* gcc.target/i386/pr65105-1.c: Likewise.
	* gcc.target/i386/pr65105-2.c: Likewise.
	* gcc.target/i386/pr65105-3.c: Likewise.
	* gcc.target/i386/pr65105-5.c: Likewise.
	* gcc.target/i386/pr67761.c: Likewise.
	* gcc.target/i386/pr70799-1.c: Likewise.

From-SVN: r241464

	PR sanitizer/77966
	* opts.c (finish_options): Skip conditionally.
	PR sanitizer/77966
	* c-c++-common/ubsan/unreachable-3.c: New test.

From-SVN: r241463

From-SVN: r241460

gcc/ChangeLog:

	PR target/77837
	* config/rs6000/linux.h (TARGET_PRINTF_POINTER_FORMAT): Define.
	* config/rs6000/linux64.h (TARGET_PRINTF_POINTER_FORMAT): Likewise.

From-SVN: r241457

2016-10-23  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/77763
	* parse.c (parse_spec): Allow STRUCTURE in BLOCK DATA.  Sort
	case labels.

2016-10-23  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/77763
	* gfortran.dg/pr77763.f90

From-SVN: r241454