re PR libstdc++/77717 (testsuite/21_strings/basic_string_view/operations/compare/char/1.cc makes undefined memcmp call)

	PR libstdc++/77717
	* testsuite/21_strings/basic_string_view/operations/compare/char/1.cc:
	Fix an out-of-bounds access.

From-SVN: r240486

Co-Authored-By: Jakub Jelinek <jakub@redhat.com>

From-SVN: r240485

2016-09-26  Richard Biener  <rguenther@suse.de>

	* dwarf2out.c (stripattributes): Remove unused function.
	(DEBUG_NORM_MACINFO_SECTION): Rename to DEBUG_MACINFO_SECTION.
	Push dwarf_split_debug_info handling into init_sections_and_labels.
	(DEBUG_NORM_MACRO_SECTION): Likewise to DEBUG_MACRO_SECTION.
	(DEBUG_MACRO_SECTION_FLAGS): Remove.
	(debug_macinfo_section_name): New global.
	(output_macinfo): Use debug_macinfo_section_name.
	(init_sections_and_labels): Split out section and label generation
	from dwarf2out_init.  Set debug_macinfo_section_name.
	(dwarf2out_init): Move text section label generation and emission
	to ...
	(dwarf2out_assembly_start): ... here.
	(dwarf2out_finish): Call init_sections_and_labels before DWARF
	output starts.

From-SVN: r240484

2016-09-26  Richard Biener  <rguenther@suse.de>

	PR debug/77692
	* cgraphunit.c (analyze_functions): Before early removing
	global vars calls the late_global_decl debug handler mark
	the variable as readonly.

From-SVN: r240483

From-SVN: r240482

2016-09-25  François Dumont  <fdumont@gcc.gnu.org>

	* src/c++11/debug.cc: Include debug/vector. Include cctype. Remove
	functional.
	(get_safe_base_mutex): Get mutex based on address lowest non nil bits.
	* testsuite/23_containers/vector/debug/mutex_association.cc: New.

From-SVN: r240479

2016-09-25  François Dumont  <fdumont@gcc.gnu.org>

	* include/debug/bitset (bitset::reference::reference(const _Base_ref&,
	bitset*)): Remove __unused__ attribute.
	* include/debug/safe_base.h (_Safe_iterator_base): Make
	_Safe_sequence_base a friend.
	(_Safe_iterator_base::_M_attach): Make protected.
	(_Safe_iterator_base::_M_attach_single): Likewise.
	(_Safe_iterator_base::_M_detach): Likewise.
	(_Safe_iterator_base::_M_detach_single): Likewise.
	(_Safe_sequence_base): Make _Safe_iterator_base a friend.
	(_Safe_sequence_base::_Safe_sequence_base(_Safe_sequence_base&&)): New.
	(_Safe_sequence_base::_M_swap): Make protected.
	(_Safe_sequence_base::_M_attach): Make private.
	(_Safe_sequence_base::_M_attach_single): Likewise.
	(_Safe_sequence_base::_M_detach): Likewise.
	(_Safe_sequence_base::_M_detach_single): Likewise.
	* include/debug/safe_container.h
	(_Safe_container::_Safe_container(_Safe_container&&)): Make default.
	* include/debug/safe_iterator.h
	(_Safe_iterator::operator++()): Name __scoped_lock instance.
	* include/debug/safe_iterator.tcc: Remove trailing line.
	* include/debug/safe_unordered_base.h
	(_Safe_local_iterator_base::_M_attach): Make protected.
	(_Safe_local_iterator_base::_M_attach_single): Likewise.
	(_Safe_local_iterator_base::_M_detach): Likewise.
	(_Safe_local_iterator_base::_M_detach_single): Likewise.
	(_Safe_unordered_container_base): Make _Safe_local_iterator_base friend.
	(_Safe_unordered_container_base::_M_attach_local): Make private.
	(_Safe_unordered_container_base::_M_attach_local_single): Likewise.
	(_Safe_unordered_container_base::_M_detach_local): Likewise.
	(_Safe_unordered_container_base::_M_detach_local_single): Likewise.

From-SVN: r240478

2016-09-25  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/77429 
	* dependency.c (gfc_check_dependency):  Convert gcc_assert() to
	a conditional and possible call to  gfc_internal_error().

2016-09-25  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/77429 
	* gfortran.dg/pr77429.f90: New test.

From-SVN: r240477

2016-09-22  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/77694
	* frontend-passes.c (optimize_binop_array_assignment): Check pointer
	for NULL.

2016-09-22  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/77694
	* gfortran.dg/pr77694.f90: New test.

From-SVN: r240476

From-SVN: r240474

2016-09-25  François Dumont  <fdumont@gcc.gnu.org>

	* include/parallel/algo.h: Generalize usage of std::__iterator_category.
	Adjust whitespaces.

From-SVN: r240473

The costs for movt and movrt type of insns were not correctly reported
and ifcvt thus made some bad choices for SH.  A new cset_zero pattern
variant is also required to fix the matching for some recent changes
in the middle end.
 
gcc/
	PR target/51244
	* config/sh/sh.c (sh_movt_set_dest, sh_movrt_set_dest): Add overloads.
	(sh_rtx_costs): Handle SET of movt and movrt patterns.
	* cnofig/sh/sh-protos.h (sh_movt_set_dest, sh_movrt_set_dest): Forward
	declare new overloads.
	* config/sh/sh.md (*cset_zero): Add variant that takes a treg_set_expr
	operand.

gcc/testsuite/
	PR target/51244
	* gcc.target/sh/pr51244-11.c: Add more detailed expected insn matching.

From-SVN: r240471

From-SVN: r240470

2016-09-24  Dominique d'Humieres  <dominiq@lps.ens.fr>
 
	* gfortran.dg/coarray_lib_comm_1.f90: Really fix test
	for 32-bit mode.

From-SVN: r240467

2016-09-24  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>

	* config/rs6000/rs6000.c (expand_block_compare, do_load_for_compare):
	Change TARGET_LITTLE_ENDIAN to !BYTES_BIG_ENDIAN.

From-SVN: r240466

        * configure.ac (gcc_cv_as_aix_dwloc): Fix typo in assembly fragment.
        * configure: Regenerate.

From-SVN: r240465

From-SVN: r240464

2016-09-24  Dominique d'Humieres  <dominiq@lps.ens.fr>

	* gfortran.dg/coarray_lib_comm_1.f90: Fix test
	for 32-bit mode.

From-SVN: r240463

	PR c/77490
	* c.opt (Wbool-operation): New.

	* c-typeck.c (build_unary_op): Warn about bit not on expressions that
	have boolean value.  Warn about ++/-- on booleans.

	* typeck.c (cp_build_unary_op): Warn about bit not on expressions that
	have boolean value.

	* doc/invoke.texi: Document -Wbool-operation.

	* c-c++-common/Wbool-operation-1.c: New test.
	* gcc.dg/Wbool-operation-1.c: New test.

From-SVN: r240462

From-SVN: r240461

2016-09-23  Fritz Reese  <fritzoreese@gmail.com>

	gcc/fortran/
	* lang.opt, invoke.texi, gfortran.texi: New flag -fdec-static.
	* options.c (set_dec_flags): Set -fdec-static with -fdec.
	* gfortran.h (symbol_attribute): New attribute automatic.
	* gfortran.h (gfc_add_automatic): New prototype.
	* match.h (gfc_match_automatic, gfc_match_static): New functions.
	* decl.c (gfc_match_automatic, gfc_match_static): Ditto.
	* symbol.c (gfc_add_automatic): Ditto.
	* decl.c (match_attr_spec): Match AUTOMATIC and STATIC decls.
	* parse.c (decode_specification_statement, decode_statement): Ditto.
	* resolve.c (apply_default_init_local, resolve_fl_variable_derived,
	resolve_symbol): Support for automatic attribute.
	* symbol.c (check_conflict, gfc_copy_attr, gfc_is_var_automatic):
	Ditto.
	* trans-decl.c (gfc_finish_var_decl): Ditto.

	gcc/testsuite/gfortran.dg/
	* dec_static_1.f90, dec_static_2.f90, dec_static_3.f90,
	dec_static_4.f90: New testcases.

From-SVN: r240458

    
    Reviewed-on: https://go-review.googlesource.com/29678

From-SVN: r240457

2016-09-23  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR libgfortran/48298
	* io/inquire.c (inquire_via_unit): Adjust error check for the
	two possible internal unit KINDs.
	* io/io.h: Adjust defines for is_internal_unit and
	is_char4_unit. (gfc_unit): Add internal unit data to structure.
	(get_internal_unit): Change declaration to set_internal_unit.
	(free_internal_unit): Change name to stash_internal_unit_number.
	(get_unique_unit_number): Adjust parameter argument.
	Define IOPARM_DT_HAS_UDTIO. (gfc_saved_unit): New structure.
	* io/list_read.c (next_char_internal): Use is_char4_unit.
	* io/open.c (st_open): Adjust call to get_unique_unit_number.
	* io/transfer.c (write_block): Use is_char4_unit.
	(data_transfer_init): Update check for unit numbers.
	(st_read_done): Free the various allocated memories used for the
	internal units and stash the negative unit number and pointer to unit
	structure to allow reuse. (st_write_done): Likewise stash the freed
	unit.
	* io/unit.c: Create a fixed size buffer of 16 gfc_saved_unit's to use
	as a stack to save newunit unit numbers and unit structure for reuse.
	(get_external_unit): Change name to get_gfc_unit to better
	reflect what it does. (find_unit): Change call to get_gfc_unit.
	(find_or_create_unit): Likewise. (get_internal_unit): Change
	name to set_internal_unit. Move internal unit from the dtp
	structure to the gfc_unit structure so that it can be passed to
	child I/O statements through the UNIT.
	(free_internal_unit): Change name to stash_internal_unit_number.
	Push the common.unit number onto the newunit stack, saving it
	for possible reuse later. (get_unit): Set the internal unit
	KIND. Use get_unique_unit_number to get a negative unit number
	for the internal unit. Use get_gfc_unit to get the unit structure
	and use set_internal_unit to initialize it.
	(init_units): Initialize the newunit stack.
	(get_unique_unit_number): Check the stack for an available unit
	number and use it. If none there get the next most negative
	number. (close_units): Free any unit structures pointed to from the save
	stack.

2016-09-23  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR fortran/48298
	* gfortran.h (gfc_dt): Add *udtio.
	* ioparm.def: Add bit IOPARM_dt_f2003 to align with library use of bit
	25. Add IOPARM_dt_dtio bit to common flags.
	* resolve.c (resolve_transfer): Set dt->udtio to expression.
	* io.c (gfc_match_inquire): Adjust error message for internal
	unit KIND.
	* libgfortran.h: Adjust defines for GFC_INTERNAL_UNIT4,
	GFC_INTERNAL_UNIT, and GFC_INVALID_UNIT.
	* trans-io.c (build_dt): Set common_unit to reflect the KIND of
	the internal unit. Set mask bit for presence of dt->udtio.

2016-09-23  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR fortran/48298
	* gfortran.dg/negative_unit_check.f90: Update test.
	* gfortran.dg/dtio_14.f90: New test.

From-SVN: r240456

	* config/rs6000/rs6000.md (cmpmemsi): New define_expand.
	* config/rs6000/rs6000.c (expand_block_compare): New function used by
	cmpmemsi pattern to do builtin expansion of memcmp ().
	(compute_current_alignment): Add helper function for
	expand_block_compare used to compute alignment as the compare proceeds.
	(select_block_compare_mode): Used by expand_block_compare to select
	the mode used for reading the next chunk of bytes in the compare.
	(do_load_for_compare): Used by expand_block_compare to emit the load
	insns for the compare.
	(rs6000_emit_dot_insn): Moved this function to avoid a forward
	reference from expand_block_compare ().
	* config/rs6000/rs6000-protos.h (expand_block_compare): Add a
	prototype for this function.
	* config/rs6000/rs6000.opt (mblock-compare-inline-limit): Add a new
	target option for controlling how much code inline expansion of
	memcmp() will be allowed to generate.

From-SVN: r240455

The attached patch fixes some dg-error tests that were broken since
the recent change of the error location.

gcc/testsuite/ChangeLog:

	* gcc.target/s390/hotpatch-compile-1.c: Fixed dg-error test.
	* gcc.target/s390/hotpatch-compile-2.c: Likewise.
	* gcc.target/s390/hotpatch-compile-3.c: Likewise.
	* gcc.target/s390/hotpatch-compile-4.c: Likewise.
	* gcc.target/s390/hotpatch-compile-5.c: Likewise.
	* gcc.target/s390/hotpatch-compile-6.c: Likewise.
	* gcc.target/s390/hotpatch-compile-14.c: Likewise.

From-SVN: r240454

    
    Introduce an abstraction layer for reporting diagnostics, so as to avoid
    directly using the native GCC interfaces such as "error_at",
    "warning_at", "open_quote", "close_quote", etc.  The new interfaces have
    the same look and feel as the GCC equivalents, but make calls into
    back-end functions to allow the back end to select the proper final
    reporting routine.
    
    Reviewed-on: https://go-review.googlesource.com/29191

	* go-gcc-diagnostics.cc: New file.
	* go-location.h (Location): Remove operator source_location.  Add
	operator==.
	* go-system.h: #include <sstream>.
	* Make-lang.in (GO_OBJS): Add go/go-diagnostics.o and
	go/go-gcc-diagnostics.o.
	(CFLAGS-go/go-gcc-diagnostics.o): New variable.

From-SVN: r240453

	* hooks.c (hook_bool_bool_false, hook_bool_bool_gcc_optionsp_false,
	hook_bool_mode_false, hook_bool_mode_true,
	hook_bool_mode_const_rtx_false, hook_bool_mode_const_rtx_true,
	hook_bool_mode_rtx_false, hook_bool_mode_rtx_true,
	hook_bool_const_rtx_insn_const_rtx_insn_true,
	hook_bool_mode_uhwi_false, hook_void_FILEptr_constcharptr,
	hook_bool_FILEptr_rtx_false, hook_bool_gsiptr_false,
	hook_bool_const_tree_hwi_hwi_const_tree_false,
	hook_bool_const_tree_hwi_hwi_const_tree_true,
	default_can_output_mi_thunk_no_vcall, hook_int_uint_mode_1,
	hook_int_const_tree_0, hook_int_const_tree_const_tree_1,
	hook_int_rtx_0, hook_int_rtx_bool_0, hook_void_tree,
	hook_void_constcharptr, hook_void_tree_treeptr, hook_void_int_int,
	hook_bool_tree_false, hook_bool_const_tree_false, hook_bool_tree_true,
	hook_bool_const_tree_true, hook_bool_tree_tree_false,
	hook_bool_tree_tree_true, hook_bool_tree_bool_false,
	hook_bool_rtx_insn_true, hook_bool_rtx_false,
	hook_bool_uintp_uintp_false,
	hook_bool_rtx_mode_int_int_intp_bool_false, hook_rtx_rtx_null,
	hook_rtx_tree_int_null, hook_uint_mode_0,
	hook_constcharptr_const_tree_null, hook_tree_tree_int_treep_bool_null,
	hook_tree_tree_tree_null, hook_tree_tree_tree_tree_null,
	hook_constcharptr_const_rtx_insn_null,
	hook_constcharptr_const_tree_const_tree_null,
	hook_constcharptr_int_const_tree_null,
	hook_constcharptr_int_const_tree_const_tree_null,
	hook_tree_const_tree_null, hook_bool_rtx_insn_int_false,
	hook_void_rtx_insn_int, hook_void_gcc_optionsp): For arguments with
	ATTRIBUTE_UNUSED, remove parameter name as well as ATTRIBUTE_UNUSED.

From-SVN: r240452

	PR go/77701
	* go-gcc.cc (Gcc_backend::Gcc_backend): Fix calls to integer_type
	to pass arguments in the correct order.

From-SVN: r240451

gcc/testsuite/ChangeLog:

	PR testsuite/77713
	* gcc.dg/tree-ssa/builtin-sprintf.c (test_e_long_double): Avoid
	assuming long double is bigger than double.

From-SVN: r240450

	Implement P0138R2, C++17 construction rules for enum class values
	* cp-tree.h (is_direct_enum_init): Declare.
	* decl.c (is_direct_enum_init): New function.
	(reshape_init): Use it.
	* typeck.c (convert_for_assignment): Likewise.

	* g++.dg/cpp1z/direct-enum-init1.C: New test.

From-SVN: r240449

	* Make-lang.in (check-c++1z): Pass RUNTESTFLAGS down to
	make check-g++.

From-SVN: r240448

	PR libstdc++/56166
	PR libstdc++/77582
	* include/bits/basic_string.h (basic_string::clear()): Drop reference
	and use empty rep.
	* include/ext/rc_string_base.h (__rc_string_base::_M_clear()):
	Likewise.
	* testsuite/21_strings/basic_string/56166.cc: New.
	* testsuite/ext/vstring/modifiers/clear/56166.cc: New.

From-SVN: r240447

	* include/bits/basic_string.h [_GLIBCXX_USE_CXX11_ABI]
	(basic_string::erase(size_type, size_type)): Add fast path for
	truncating the string, by calling _M_set_length directly.
	(basic_string::erase(__const_iterator, __const_iterator)): Likewise.
	* include/bits/basic_string.tcc [_GLIBCXX_USE_CXX11_ABI]
	(basic_string::resize(size_type, _CharT)): Likewise.

From-SVN: r240446

	* vec.h (vNULL): Extend comment to say = vNULL initialization
	isn't needed for static vars.

From-SVN: r240445

sel-sched-ir.c (sel_global_bb_info, [...]): Remove unnecessary = vNULL initialization of file scope vec.

	* sel-sched-ir.c (sel_global_bb_info, sel_region_bb_info,
	loop_nests, s_i_d, last_added_blocks): Remove unnecessary
	= vNULL initialization of file scope vec.
	* passes.c (pass_tab, enabled_pass_uid_range_tab,
	disabled_pass_uid_range_tab): Likewise.
	* haifa-sched.c (sched_luids, h_i_d): Likewise.
	* tree-chkp-opt.c (check_infos): Likewise.
	* sel-sched.c (vec_av_set, vec_temp_moveop_nops): Likewise.
c/
	* c-parser.c (incomplete_record_decls): Remove unnecessary
	= vNULL initialization of file scope vec.
cp/
	* constexpr.c (call_stack): Remove unnecessary
	= vNULL initialization of file scope vec.

From-SVN: r240444

	* vec.h (vnull::operator vec): Add constexpr keyword for
	C++11 and later.

From-SVN: r240443

gcc/testsuite/ChangeLog
	PR preprocessor/77672
	* gcc.dg/tree-ssa/builtin-sprintf-warn-4.c (test): Update
	expected multiline output from first warning to reflect change
	in r240434.

From-SVN: r240442

2016-09-23  Thomas Preud'homme  <thomas.preudhomme@arm.com>

    gcc/testsuite/
    * gcc.dg/tree-ssa/builtin-sprintf-warn-2.c: Fix xfail pattern.

From-SVN: r240441

gcc/
	* tree-ssa-loop-prefetch.c (issue_prefetch_ref): Add call
	to duplicate_ssa_name_ptr_info.

From-SVN: r240440

gcc/
        PR tree-optimization/77654
        * tree-ssa-alias.c (issue_prefetch_ref): Add call
        to duplicate_ssa_name_ptr_info.

From-SVN: r240439