PR libstdc++/80893 Fix null dereference in vector<bool>

PR libstdc++/80893
* include/bits/stl_bvector.h (vector<bool>::_M_initialize): Avoid
null pointer dereference when size is zero.
* testsuite/23_containers/vector/bool/80893.cc: New.
* testsuite/util/testsuite_allocator.h (PointerBase::PointerBase):
Add non-explicit constructor from nullptr.
(PointerBase::derived() const): Add const-qualified overload.

From-SVN: r248734

[1/2] Add get_next_strinfo helper function

This patch just adds a helper function for getting the next strinfo
in a chain, since part 2 adds another place where we do that.

2017-05-16  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
* tree-ssa-strlen.c (get_next_strinfo): New function.
(get_stridx_plus_constant): Use it.
(zero_length_string): Likewise.
(adjust_related_strinfos): Likewise.
(adjust_last_stmt): Likewise.

From-SVN: r248732

re PR target/80880 (internal compiler error: in ix86_expand_builtin)

2017-05-31  Richard Biener  <rguenther@suse.de>

PR target/80880
* config/i386/i386.c (ix86_expand_builtin): Remove assert
for arg being an SSA name when expanding IX86_BUILTIN_BNDRET.

* gcc.target/i386/pr80880.c: New testcase.

From-SVN: r248731

Alternative check for vector refs with same alignment

vect_find_same_alignment_drs uses the ddr dependence distance
to tell whether two references have the same alignment.  Although
that's safe with the current code, there's no particular reason
why a dependence distance of 0 should mean that the accesses start
on the same byte.  E.g. a reference to a full complex value could
in principle depend on a reference to the imaginary component.
A later patch adds support for this kind of dependence.

On the other side, checking modulo vf is pessimistic when the step
divided by the element size is a factor of 2.

This patch instead looks for cases in which the drs have the same
base, offset and step, and for which the difference in their constant
initial values is a multiple of the alignment.

2017-05-03  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
* tree-vect-data-refs.c (vect_find_same_alignment_drs): Remove
loop_vinfo argument and use of dependence distance vectors.
Check instead whether the two references differ only in their
initial value and assume that they have the same alignment if the
difference is a multiple of the vector alignment.
(vect_analyze_data_refs_alignment): Update call accordingly.

gcc/testsuite/
* gcc.dg/vect/vect-103.c: Update wording of dump message.

From-SVN: r248730

Fix typo in a comment in cpuid.h (PR target/79155).

2017-05-31  Martin Liska  <mliska@suse.cz>

PR target/79155
* config/i386/cpuid.h: Fix typo in a comment in cpuid.h.

From-SVN: r248729

* tree-vect-loop-manip.c (create_intersect_range_checks_index)
(create_intersect_range_checks): Move from ...
* tree-data-ref.c (create_intersect_range_checks_index)
(create_intersect_range_checks): ... to here.
(create_runtime_alias_checks): New function factored from ...
* tree-vect-loop-manip.c (vect_create_cond_for_alias_checks): ...
here.  Call above function.
* tree-data-ref.h (create_runtime_alias_checks): New function.

From-SVN: r248726

tree-data-ref.c (prune_runtime_alias_test_list): Relax minimal segment length for dr_b and compute it in wide_int.

* tree-data-ref.c (prune_runtime_alias_test_list): Relax minimal
segment length for dr_b and compute it in wide_int.

gcc/testsuite
* gcc.dg/vect/pr80815-3.c: New test.

From-SVN: r248725

MAINTAINERS: Add self to Write After Approval

2017-05-31  Prakhar Bahuguna  <prakhar.bahuguna@arm.com>

* MAINTAINERS: Add self to Write After Approval

From-SVN: r248723

re PR tree-optimization/80906 (ICE in copy_loop_close_phi_args, at graphite-isl-ast-to-gimple.c:2094)

2017-05-31  Richard Biener  <rguenther@suse.de>

PR tree-optimization/80906
* graphite-isl-ast-to-gimple.c (copy_loop_close_phi_nodes): Get
and pass through iv_map.
(copy_bb_and_scalar_dependences): Adjust.
(translate_pending_phi_nodes): Likewise.
(copy_loop_close_phi_args): Handle code-generating IVs instead
of ICEing.

* gcc.dg/graphite/pr80906.c: New testcase.

From-SVN: r248722

configure.ac (strnlen): Add to AC_CHECK_DECLS.

* configure.ac (strnlen): Add to AC_CHECK_DECLS.
* configure: Likewise.
* config.in: Add HACE_DECL_STRNLEN.

From-SVN: r248721

Daily bump.

From-SVN: r248719

Test if host compiler supports -std=c++11 in ms-sysv.exp

2017-05-30  Tom de Vries  <tom@codesourcery.com>

PR testsuite/80910
* gcc.target/x86_64/abi/ms-sysv/ms-sysv.exp: Exit with status
unsupported if host compiler does not support c++11.
(host_supports_c++11): New proc.

From-SVN: r248701

re PR c/80731 (poor -Woverflow warnings, missing detail)

gcc/testsuite/ChangeLog:
PR c/80731
* g++.dg/ext/utf16-4.C: Relax test.
* gcc.dg/fixed-point/int-warning.c: Adjust.

From-SVN: r248700

PR c++/80856 - ICE with local extern in template

* semantics.c (finish_call_expr): Replace a local extern overload
set in a template with the IDENTIFIER_NODE.

From-SVN: r248699

C++ template type diff printing

gcc/ChangeLog:
* diagnostic-color.c (color_dict): Add "type-diff".
(parse_gcc_colors): Update comment.
* doc/invoke.texi (Diagnostic Message Formatting Options): Add
-fdiagnostics-show-template-tree and -fno-elide-type.
(GCC_COLORS): Add type-diff to example.
(type-diff=): New.
(-fdiagnostics-show-template-tree): New.
(-fno-elide-type): New.
* pretty-print.c (pp_format): Pass quote and formatters[argno] to
the pp_format_decoder callback.  Call any m_format_postprocessor's
"handle" method.
(pretty_printer::pretty_printer): Initialize
m_format_postprocessor.
(pretty_printer::~pretty_printer): Delete any
m_format_postprocessor.
* pretty-print.h (printer_fn): Add bool and const char **
parameters.
(class format_postprocessor): New class.
(struct pretty_printer::format_decoder): Document the new
parameters.
(struct pretty_printer::m_format_postprocessor): New field.
* tree-diagnostic.c (default_tree_printer): Update for new
bool and const char ** params.
* tree-diagnostic.h (default_tree_printer): Likewise.

gcc/c/ChangeLog:
* c-objc-common.c (c_tree_printer): Gain bool and const char **
parameters.

gcc/c-family/ChangeLog:
* c-format.c (gcc_cxxdiag_char_table): Add 'H' and 'I' to
format_chars.
* c.opt (fdiagnostics-show-template-tree): New option.
(felide-type): New option.

gcc/cp/ChangeLog:
* call.c (perform_implicit_conversion_flags): Convert
"from %qT to %qT" to "from %qH to %qI" in diagnostic.
(print_conversion_rejection): Replace pairs of %qT with
%qH and %qI in various places.
(build_user_type_conversion_1): Likewise.
(build_integral_nontype_arg_conv): Likewise.
(build_conditional_expr_1): Likewise.
(convert_like_real): Likewise.
(convert_arg_to_ellipsis): Likewise.
(joust): Likewise.
(initialize_reference): Likewise.
* cvt.c (cp_convert_to_pointer): Likewise.
(cp_convert_to_pointer): Likewise.
(convert_to_reference): Likewise.
(ocp_convert): Likewise.
* error.c (cp_printer): Gain bool and const char ** parameters.
(struct deferred_printed_type): New struct.
(class cxx_format_postprocessor): New class.
(cxx_initialize_diagnostics): Wire up a cxx_format_postprocessor
to pp->m_format_postprocessor.
(comparable_template_types_p): New function.
(newline_and_indent): New function.
(arg_to_string): New function.
(print_nonequal_arg): New function.
(print_template_differences): New function.
(type_to_string_with_compare): New function.
(print_template_tree_comparison): New function.
(append_formatted_chunk): New function.
(add_quotes): New function.
(cxx_format_postprocessor::handle): New function.
(defer_phase_2_of_type_diff): New function.
(cp_printer): Add "quoted" and "buffer_ptr" params.  Implement
%H and %I.
* typeck.c (cp_build_binary_op): Replace pairs of %qT with
%qH and %qI in various places.
(convert_member_func_to_ptr): Likewise.
(build_reinterpret_cast_1): Likewise.
(convert_for_assignment): Likewise.
* typeck2.c (check_narrowing): Likewise.

gcc/fortran/ChangeLog:
* error.c (gfc_format_decoder): Update for new bool and
const char ** params.

gcc/testsuite/ChangeLog:
* g++.dg/plugin/plugin.exp (plugin_test_list): Add...
* g++.dg/plugin/show-template-tree-color-no-elide-type.C: New
test case.
* g++.dg/plugin/show-template-tree-color.C: New test case.
* g++.dg/plugin/show_template_tree_color_plugin.c: New plugin.
* g++.dg/template/show-template-tree-2.C: New test case.
* g++.dg/template/show-template-tree-3.C: New test case.
* g++.dg/template/show-template-tree-4.C: New test case.
* g++.dg/template/show-template-tree-no-elide-type.C: New test case.
* g++.dg/template/show-template-tree.C: New test case.

From-SVN: r248698

Remove gen_cell_microcode, warn_cell_microcode

-mno-gen-cell-microcode is a pain to handle correctly: it causes
different code generation for some very basic patterns, even patterns
specific to that option.  It also requires marking up many patterns,
which is a pain when adding new patterns or modifying existing ones
(first non-trivial step is finding the Cell BE manual!)

-mwarn-cell-microcode is very expensive, even more so after my recent
fix for PR43763; and it used to ICE for seven years before that fix.

This patch removes both these command line options (it leaves the
positive form of -mgen-cell-microcode, doing nothing, for
compatibility).

Where cc_reg_not_micro_cr0_operand was used, we now get the regular
cc_reg_not_cr0_operand.

One testcase used -mgen-cell-microcode and one its negation; both
are adjusted.

* config/rs6000/predicates.md (cc_reg_not_micro_cr0_operand): Delete.
(lwa_operand): Delete rs6000_gen_cell_microcode test.
* config/rs6000/rs6000.c (rs6000_option_override_internal): Delete
rs6000_gen_cell_microcode code.
(rs6000_final_prescan_insn): Delete.
(rs6000_opt_vars): Delete the "gen-cell-microcode" and
"warn-cell-microcode" entries.
* config/rs6000/rs6000.h (FINAL_PRESCAN_INSN): Delete.
* config/rs6000/rs6000.md: Delete rs6000_gen_cell_microcode tests
throughout.  Change cc_reg_not_micro_cr0_operand to
cc_reg_not_cr0_operand throughout.
(*extendhi<mode>2_noload): Delete.
* config/rs6000/rs6000.opt (mgen-cell-microcode): Replace by stub.
(mwarn-cell-microcode): Delete.
* doc/invoke.texi (RS/6000 and PowerPC Options): Delete
-mgen-cell-microcode and -mwarn-cell-microcode.

gcc/testsuite/
* gcc.target/powerpc/shift-dot.c: Delete -mgen-cell-microcode from
dg-options.
* gfortran.dg/pr80107.f: Delete testcase.

From-SVN: r248695

Kill IDENTIFIER_NAMESPACE_BINDINGS

Kill IDENTIFIER_NAMESPACE_BINDINGS
* cp-tree.h (lang_identifier): Delete namespace_bindings.
(IDENTIFIER_NAMESPACE_BINDINGS): Delete.
(lang_decl_ns): Add bindings.
(DECL_NAMESPACE_BINDINGS): New.
* lex.c (retrofit_lang_decl): Create namespace hash table.
* name-lookup.c (find_namespace_slot): Change to use hash-map.
* ptree.c (cxx_print_binding): Delete.
(cxx_print_identifier): Remove NAMESPACE_BINDING printing.

From-SVN: r248694

cp-tree.def (OVERLOAD): Fix comment.

* cp-tree.def (OVERLOAD): Fix comment.
* cp-tree.h: Fix comments and whitespace.
* error.c (dump_decl): Use pp_cxx_colon_colon, ovl_scope.
* name-lookup.c (add_decl_to_level): Assert not class.
(check_local_shadow): Use OVL_P.
(pushdecl_with_scope_1): Rename to ...
(do_pushdecl_with_Scope): ... here.
(do_nonmember_using_decl): Use qualified_namespace_lookup return
value.
(push_class_level_binding_1): Use OVL_P.
(pushdecl_namespace_level): Use do_pushdecl_with_scope.
(pushtag_1): Rename to ...
(do_pushtag): ... here.  Adjust do_pushdecl_with_scope call.
(pushtag): Adjust.
(store_class_bindings): Do not time here.
* name-lookup.h (pushdecl_outermost_localscope): Reorder.
* pt.c (listify): Declare argvec at point of initialization.

From-SVN: r248693

ChangeLog: Add missing entry.

* ChangeLog: Add missing entry.
* testsuite/ChangeLog: Ditto.

From-SVN: r248692

re PR target/80833 (32-bit x86 causes store-forwarding stalls for int64_t -> xmm)

PR target/80833
* config/i386/constraints.md (Yd): New constraint.
(Ye): Ditto.
* config/i386/i386.md (*movti_internal): Add (?r, Ye)
and (?Yd, r) alternatives.  Update insn attributes.
* config/i386/i386.md (*movti_internal): Add (?r, *Ye)
and (?*Yd, r) alternatives.  Update insn attributes.
(double-mode inter-unit splitters): Add new GR<->XMM splitters.

testsuite/ChangeLog:

PR target/80833
* gcc.target/i386/pr80833-1.c: New test.
* gcc.target/i386/pr80833-2.c: Ditto.

From-SVN: r248691

gimplify_modify_expr: avoid DECL_DEBUG_EXPR links across functions

An upcoming patch exposes a bug in gimplify_modify_expr.  There, we try
not to create DECL_DEBUG_EXPR links across functions, however we don't
check that *FROM_P actually belongs to the current function before
modifying it.  This patch fixes this oversight.

gcc/

* gimplify.c (gimplify_modify_expr): Don't create a
DECL_DEBUG_EXPR link if *FROM_P does not belong to the current
function.

From-SVN: r248688

re PR c++/80913 (Infinite loop in cc1plus with stat hack patch)

PR c++/80913
* name-lookup.c (add_decl_to_level): Assert not making a circular
chain.
(update_binding): Don't prematurely slide artificial decl.

* g++.dg/lookup/pr80913.C: New.

From-SVN: r248687

Fix ARM bootstrap failure due to an odd warning:

/src/gcc/gcc/config/arm/arm-builtins.c: In function 'rtx_def* arm_expand_builtin(tree, rtx, rtx, machine_mode, int)':
/src/gcc/gcc/config/arm/arm-builtins.c:3056:46: error: type qualifiers ignored on cast result type [-Werror=ignored-qualifiers]
     if (d->code == (const enum arm_builtins) fcode)
                                              ^~~~~

Avoid the warning by removing const, and bootstrap is OK again.

Committed as trivial patch.

    gcc/
* config/arm/arm-builtins.c (arm_expand_builtin): Remove const.

From-SVN: r248686

tree-vectorizer.h (struct _stmt_vec_info): Add reduc_type and reduc_def fields.

2017-05-30  Richard Biener  <rguenther@suse.de>

* tree-vectorizer.h (struct _stmt_vec_info): Add reduc_type
and reduc_def fields.
(STMT_VINFO_REDUC_TYPE): New define.
(STMT_VINFO_REDUC_DEF): Likewise.
(vect_force_simple_reduction): Adjust prototype.
* tree-vect-loop.c (vect_analyze_scalar_cycles_1): Adjust.
(vect_is_simple_reduction): Remove check_reduction argument.
(vect_force_simple_reduction): Adjust and set
STMT_VINFO_REDUC_TYPE and STMT_VINFO_REDUC_DEF.
(vectorizable_reduction): Do not re-do reduction analysis
but use STMT_VINFO_REDUC_TYPE and STMT_VINFO_REDUC_DEF.
* tree-parloops.c (gather_scalar_reductions): Adjust.

From-SVN: r248685

t-vxworks (LIBGCC2_INCLUDES): Remove extraneous dollar sign before $(MULTIDIR).

2017-05-30  Olivier Hainque  <hainque@adacore.com>

libgcc/
* config/t-vxworks (LIBGCC2_INCLUDES): Remove extraneous
dollar sign before $(MULTIDIR).

From-SVN: r248684

re PR libgomp/80822 (libgomp incorrect affinity when OMP_PLACES=threads)

PR libgomp/80822
* config/linux/affinity.c (gomp_affinity_init_level_1): New function.
(gomp_affinity_init_level): Use it.  Always analyze the core and thread
sibling lists, depending on level just pick up what CPUs to put
together into a place vs. whether add multiple ordered places.

From-SVN: r248683

re PR tree-optimization/80901 (ICE on valid code at -Os and above on x86_64-linux-gnu: in verify_loop_structure, at cfgloop.c:1644)

2017-05-30  Richard Biener  <rguenther@suse.de>

PR middle-end/80901
* cfgexpand.c (expand_gimple_cond): Match up loop fixup with
split_edge code.

* gcc.dg/torture/pr80901.c: New testcase.

From-SVN: r248681

Vector peeling cost model 6/6

gcc/ChangeLog:

2017-05-24  Robin Dapp  <rdapp@linux.vnet.ibm.com>

* tree-vect-data-refs.c (vect_get_peeling_costs_all_drs):
Introduce unknown_misalignment parameter and remove vf.
(vect_peeling_hash_get_lowest_cost):
Pass unknown_misalignment parameter.
(vect_enhance_data_refs_alignment):
Fix unsupportable data ref treatment.

From-SVN: r248680

Vector peeling cost model 5/6

gcc/testsuite/ChangeLog:

2017-05-30  Robin Dapp  <rdapp@linux.vnet.ibm.com>

* gcc.target/s390/vector/vec-nopeel-2.c: New test.

From-SVN: r248679

Vector peeling cost model 4/6

gcc/ChangeLog:

2017-05-30  Robin Dapp  <rdapp@linux.vnet.ibm.com>

* tree-vect-data-refs.c (vect_get_data_access_cost):
Workaround for SLP handling.
(vect_enhance_data_refs_alignment):
Compute costs for doing no peeling at all, compare to the best
peeling costs so far and avoid peeling if cheaper.

From-SVN: r248678

Vector peeling cost model 3/6

gcc/ChangeLog:

2017-05-30  Robin Dapp  <rdapp@linux.vnet.ibm.com>

* tree-vect-data-refs.c (vect_peeling_hash_choose_best_peeling):
Return peeling info and set costs to zero for unlimited cost
model.
(vect_enhance_data_refs_alignment): Also inspect all datarefs
with unknown misalignment. Compute and costs for unknown
misalignment, compare them to the costs for known misalignment
and choose the cheapest for peeling.

From-SVN: r248677

Vector peeling cost model 2/6

gcc/ChangeLog:

2017-05-30  Robin Dapp  <rdapp@linux.vnet.ibm.com>

* tree-vect-data-refs.c (vect_update_misalignment_for_peel): Rename.
(vect_get_peeling_costs_all_drs): Create function.
(vect_peeling_hash_get_lowest_cost):
Use vect_get_peeling_costs_all_drs.
(vect_peeling_supportable): Create function.
(vect_enhance_data_refs_alignment): Use vect_peeling_supportable.

From-SVN: r248676

Vector peeling cost model 1/6

gcc/ChangeLog:

2017-05-30  Robin Dapp  <rdapp@linux.vnet.ibm.com>

* tree-vect-data-refs.c (vect_compute_data_ref_alignment): Create
DR_HAS_NEGATIVE_STEP.
(vect_update_misalignment_for_peel): Define DR_MISALIGNMENT.
(vect_enhance_data_refs_alignment): Use.
(vect_duplicate_ssa_name_ptr_info): Use.
* tree-vectorizer.h (dr_misalignment): Use.
(known_alignment_for_access_p): Use.

From-SVN: r248675

re PR target/78838 (msp430 option -mcode-region=either, -ffunction-sections, and interrupt function attributes cause incorrect section to be created)

PR target/78838
gcc * config/msp430/msp430.c (gen_prefix): Return NULL when section name is
.lowtext.
(has_section_name): New function.

testsuite * gcc.target/msp430/interrupt_fn_placement.c: New test.

From-SVN: r248674

Fix parenthesis in auto-profile.c (PR other/80909).

2017-05-30  Martin Liska  <mliska@suse.cz>

PR other/80909
* auto-profile.c (get_function_decl_from_block): Fix
parenthesis.

From-SVN: r248647

re PR tree-optimization/80876 (ICE in verify_loop_structure, at cfgloop.c:1644 (error: loop 1's latch does not have an edge to its header))

2017-05-30  Richard Biener  <rguenther@suse.de>

PR middle-end/80876
* cfgexpand.c (expand_gimple_cond): Fixup preserving loops again.

* gcc.dg/torture/pr80876.c: New testcase.

From-SVN: r248633

Remove dump_file_info::dump_file_info and replace it with macro.

2017-05-30  Martin Liska  <mliska@suse.cz>

* dumpfile.c: Use newly added macro DUMP_FILE_INFO.
* dumpfile.h (struct dump_file_info): Remove ctors.

From-SVN: r248617

Compare predictor values with these defined in predict.def.

2017-05-30  Martin Liska  <mliska@suse.cz>

* analyze_brprob.py: Add new argument to parse and modify
predict.def file.
* analyze_brprob_spec.py: Likewise.

From-SVN: r248600

Fix coding style.

2017-05-30  Martin Liska  <mliska@suse.cz>

* predict.def: Fix GNU coding style.

From-SVN: r248599

Daily bump.

From-SVN: r248591

gcc: xtensa: fix unused parameter warning

2017-05-28  Max Filippov  <jcmvbkbc@gmail.com>
gcc/
* config/xtensa/xtensa.c (xtensa_initial_elimination_offset):
Mark 'to' argument with ATTRIBUTE_UNUSED.

From-SVN: r248587

gcc: xtensa: fix fprintf format specifiers

HOST_WIDE_INT may not be long as assumed in print_operand and
xtensa_emit_call. Use HOST_WIDE_INT_PRINT_DEC/HOST_WIDE_INT_PRINT_HEX
format strings instead of %ld/0x%lx. This fixes incorrect assembly code
generation by the compiler running on armhf host.

2017-05-29  Max Filippov  <jcmvbkbc@gmail.com>
gcc/
* config/xtensa/xtensa.c (xtensa_emit_call): Use
HOST_WIDE_INT_PRINT_HEX instead of 0x%lx format string.
(print_operand): Use HOST_WIDE_INT_PRINT_DEC instead of %ld
format string.

From-SVN: r248586

install.texi (Options specification): Restore entry of --enable-sjlj-exceptions.

* doc/install.texi (Options specification): Restore entry of
--enable-sjlj-exceptions.

From-SVN: r248582

[libcc1] drop unused field from C++ lang_identifier

for  gcc/cp/ChangeLog

* cp-tree.h (lang_identifier): Drop oracle_looked_up, unused.

From-SVN: r248580

PR c++/80891 (#1,#5)

PR c++/80891 (#1,#5)
* cp-tree.h (lookup_maybe_add): Add DEDUPING argument.
* name-lookup.c (name_lookup): Add deduping field.
(name_lookup::preserve_state, name_lookup::restore_state): Deal
with deduping.
(name_lookup::add_overload): New.
(name_lookup::add_value, name_lookup::add_fns): Call add_overload.
(name_lookup::search_adl): Set deduping.  Don't unmark here.
* pt.c (most_specialized_instantiation): Revert previous change,
Assert not given duplicates.
* tree.c (lookup_mark): Just mark the underlying decls.
(lookup_maybe_add): Dedup using marked decls.

PR c++/80891 (#5)
* g++.dg/lookup/pr80891-5.C: New.

From-SVN: r248578

re PR fortran/53029 (missed optimization in internal read (without implied-do-loop))

2017-05-29  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

PR libgfortran/53029
* list_read.c (list_formatted_read_scala): Set the err return
value to the common.flags error values.

* gfortran.dg/read_5.f90: New test.

From-SVN: r248577

PR c++/80891 (#4)

PR c++/80891 (#4)
* ptree.c (cxx_print_xnode): Show internal OVERLOAD structure.
* tree.c (ovl_insert, ovl_iterator_remove_node): Fix copying
assert.

PR c++/80891 (#4)
* g++.dg/lookup/pr80891-4.C: New.

From-SVN: r248576

Stat hack representation

Stat hack representation
* name-lookup.c (STAT_HACK_P, STAT_TYPE, STAT_DECL)
MAYBE_STAT_DECL, MAYBE_STAT_TYPE): New.
(stat_hack): New.
(find_namespace_binding): Replace with ...
(find_namespace_slot): ... this.
(find_namespace_value): New.
(name_lookup::search_namespace_only,
name_lookup::adl_namespace_only): Adjust.
(update_binding): Add SLOT parameter, adjust.
(check_local_shadow): Use find_namespace_value.
(set_local_extern_decl_linkage): Likewise.
(do_pushdecl): Adjust for namespace slot.
(push_local_binding): Assert not a namespace binding.
(check_for_out_of_scope_variable): Use find_namespace_value.
(set_identifier_type_value_with_scope): Likewise.
(get_namespace_binding): Likewise.
(set_namespace_binding): Delete.
(set_global_binding): Directly update the binding.
(finish_namespace_using_decl): Likewise.
(lookup_type_scope_1): Use find_namespace_slot and update.
(do_push_nested_namespace): Use find_namespace_value.

From-SVN: r248574

PR c++/80891 (#1)

PR c++/80891 (#1)
* pt.c (most_specialized_instantiation): Cope with duplicate
instantiations.

PR c++/80891 (#1)
* g++.dg/lookup/pr80891-1.C: New.

From-SVN: r248573

PR c++/80891 (#3)

PR c++/80891 (#3)
* cp-tree.h (build_min_nt_call_vec): Declare.
* decl.c (build_offset_ref_call_from_tree): Call it.
* parser.c (cp_parser_postfix_expression): Likewise.
* pt.c (tsubst_copy_and_build): Likewise.
* semantics.c (finish_call_expr): Likewise.
* tree.c (build_min_nt_loc): Keep unresolved lookups.
(build_min): Likewise.
(build_min_non_dep): Likewise.
(build_min_non_dep_call_vec): Likewise.
(build_min_nt_call_vec): New.

PR c++/80891 (#3)
* g++.dg/lookup/pr80891-3.C: New.

From-SVN: r248571

PR c++/80891 (#2)

PR c++/80891 (#2)
* tree.c (ovl_copy): Adjust assert, copy OVL_LOOKUP.
(ovl_used): New.
(lookup_keep): Call it.

PR c++/80891 (#2)
* g++.dg/lookup/pr80891-2.C: New.

From-SVN: r248570

check_GNU_style_lib.py: Fix trailing whitespace check

2017-05-29  Tom de Vries  <tom@codesourcery.com>

* check_GNU_style_lib.py (TrailingWhitespaceCheck.check): Assert no
trailing eol.
(TrailingWhitespaceTest): New unit test.
(check_GNU_style_file): Remove eol before checking.

From-SVN: r248556

check_GNU_style.py: Read stdin if file argument is '-'

2017-05-29  Tom de Vries  <tom@codesourcery.com>

* check_GNU_style_lib.py (check_GNU_style_file): Treat file argument as
file handle.  Add and handle file_encoding argument.
* check_GNU_style.py (main): Handle '-' file argument.  Call
check_GNU_style_file with file handle as argument.

From-SVN: r248555

check_GNU_style_lib.py: Suggest to install all missing pip3 packages at once

Instead of:
...
$ ./contrib/check_GNU_style.py
termcolor module is missing (run: pip3 install termcolor)
$ pip3 install termcolor
$ ./contrib/check_GNU_style.py
unidiff module is missing (run: pip3 install unidiff)
$ pip3 install unidiff
$
...

Do:
...
$ ./contrib/check_GNU_style.py
termcolor and unidiff modules are missing (run: pip3 install termcolor unidiff)
$ pip3 install termcolor unidiff
$
...

2017-05-29  Tom de Vries  <tom@codesourcery.com>

* check_GNU_style_lib.py: Use import_pip3 to import pip3 packages.
(import_pip3): New function.

From-SVN: r248554

re PR fortran/37131 (inline matmul for small matrix sizes)

2017-05-29  Thomas Koenig  <tkoenig@gcc.gnu.org>

PR fortran/37131
* frontend-passes.c (check_conjg_transpose_variable):
Add prototype.
(has_dimen_vector_ref):  Likewise
(matmul_temp_args):  New function. Add prototype.
(optimize_namespace):  Call matmul_temp_args.

2017-05-29  Thomas Koenig  <tkoenig@gcc.gnu.org>

PR fortran/37131
* gfortran.dg/promotion_2.f90: Add -finline-matmul-limit=0 to
flags.
* gfortran.dg/transpose_optimization_1.f90: Likewise.
* gfortran.dg/inline_matmul_17.f90:  New test.

From-SVN: r248553

Daily bump.

From-SVN: r248552

re PR c++/80737 (variant<any> as class member resulting to compile errors)

  PR libstdc++/80737
  * include/std/variant(variant::variant): SFINAE on is_same first.
  * testsuite/20_util/variant/any.cc: test case.

From-SVN: r248548

Fix libgfortran FMA3/FMA4 tests

* acinclude.m4 (LIBGFOR_CHECK_FMA3): Use test from
check_effective_target_fma in gcc.target/i386/i386.exp.
(LIBGFOR_CHECK_FMA4): Use test from check_effective_target_fma4.
* configure: Regenerate.

From-SVN: r248547

frontend-passes.c (matmul_lhs_realloc): Correct allocation size for case A1B2.

2017-05-28  Thomas Koenig  <tkoenig@gcc.gnu.org>

* frontend-passes.c (matmul_lhs_realloc):  Correct
allocation size for case A1B2.

2017-05-28  Thomas Koenig  <tkoenig@gcc.gnu.org>

* gfortran.dg/matmul_bounds_12.f90:  New test.

From-SVN: r248546

Daily bump.

From-SVN: r248544

Revert:

2016-01-21  Ajit Agarwal  <ajitkum@xilinx.com>

See https://gcc.gnu.org/ml/gcc/2017-05/msg00221.html.

* config/microblaze/microblaze.h
(FIXED_REGISTERS): Update in macro.
(CALL_USED_REGISTERS): Update in macro.

From-SVN: r248540

d-demangle.c (dlang_identifier): Prefix mangled init symbols with `initializer for'.

libiberty/ChangeLog:

* d-demangle.c (dlang_identifier): Prefix mangled init symbols
with `initializer for'.
* testsuite/demangle-expected: Update tests.

From-SVN: r248539

d-demangle.c (dlang_call_convention_p): Move declaration before dlang_type.

libiberty/ChangeLog:

* d-demangle.c (dlang_call_convention_p): Move declaration
before dlang_type.
(dlang_type): Handle function types.
* testsuite/d-demangle-expected: Add tests.

From-SVN: r248538

d-demangle.c (dlang_parse_real): Remove stack buffer, write the demangled hexadecimal directly to string.

libiberty/ChangeLog:

* d-demangle.c (dlang_parse_real): Remove stack buffer, write
the demangled hexadecimal directly to string.
* testsuite/d-demangle-expected: Add tests.

From-SVN: r248537

MAINTAINERS: Update my email address, and remove myself as maintainer in some areas.

* MAINTAINERS: Update my email address, and remove myself as
maintainer in some areas.

From-SVN: r248536

* doc/install.texi: Add links to macOS binary distributions.

From-SVN: r248535

Small ChangeLog tweak.

From-SVN: r248534

re PR bootstrap/80887 (gnat bootstrap fails at s-regpat.o: raised STORAGE_ERROR : stack overflow or erroneous memory access)

PR bootstrap/80887
2017-05-25  Marc Glisse  <marc.glisse@inria.fr>

* match.pd ((A +- CST1) +- CST2): Allow some conversions.

* gcc.dg/tree-ssa/addadd.c: Xfail all scan-tree-dump*.

From-SVN: r248533

Daily bump.

From-SVN: r248532

compiler: identify array index expressions in lvalue context

    Update the Mark_lvalue_varexprs visitor class (used in
    Assignment_statement::do_get_backend) to identify
    Array_index_expression's that appear on the left hand side of
    assignments, then pass this context info on when invoking
    Array_type::get_value_pointer.

    Reviewed-on: https://go-review.googlesource.com/44170

From-SVN: r248528

re PR libgcc/80037 (Bad .eh_frame data in crtend.o)

PR libgcc/80037

 * config/alpha/t-alpha (CRTSTUFF_T_CFLAGS): New.

From-SVN: r248522

Implement DR2061

gcc/
Implement DR2061
* name-lookup.c (push_inline_namespaces): New.
(push_namespace): Look inside inline namespaces.

testsuite/
* g++.dg/cpp0x/dr2061.C: New.
* g++.dg/parse/namespace-alias-1.C: Add more test.

From-SVN: r248521

Inline and using namespace representation change.

gcc/cp/
Inline and using namespace representation change.
* cp-tree.h (struct lang_decl_ns): Delete ns_using.  Add usings,
inlinees as vector.
(DECL_NAMESPACE_USING): Adjust.
(DECL_NAMESPACE_INLINEES): New.
* name-lookup.h (struct cp_binding_level): Change usings
representation.
* name-lookup.c (name_lookup::do_queue_usings)
name_lookup::queue_usings): Adjust.
(name_lookup::search_namespace, name_lookup::search_usings)
name_lookup::queue_namespace): Adjust.
(name_lookup::adl_namespace_only): Adjust.
(add_using_namespace, push_namespace): Push onto vector.
(pop_namespace): Add timing logic.

libcc1/
* libcp1plugin.cc (plugin_make_namespace_inline): Push onto linees.
((--This line, and those below, will be ignored--

M    gcc/cp/ChangeLog
M    gcc/cp/cp-tree.h
M    gcc/cp/name-lookup.c
M    gcc/cp/name-lookup.h
M    libcc1/libcp1plugin.cc
M    libcc1/ChangeLog

From-SVN: r248520

re PR fortran/80889 (Bootstrap broken on all targets due to rev 248472)

2017-05-26  Thomas Koenig  <tkoenig@gcc.gnu.org>

PR boostrap/80889
* acinclude.m4: Also set HAVE_AVX128 on the false
branch of LIBGFOR_CHECK_AVX128.
* configure:  Regenerated.

From-SVN: r248519

call.c (build_operator_new_call): Do namelookup and ADL here.

gcc/cp/
* call.c (build_operator_new_call): Do namelookup and ADL here.
(build_new_op_1): Likewise.
* name-lookup.h (lookup_function_nonclass): Delete declaration.
(do_using_directive): Likewise.
* name-lookup.c (set_namespace_binding, push_local_binding): Don't
declare early.
(struct scope_binding): Delete.
(EMPTY_SCOPE_BINDING): Delete.
(set_decl_namespace): Use OVL_P.
(finish_local_using_decl): Lose unnecesary checks.
(lookup_function_nonclass): Delete.
(cp_emit_debug_info_for_using): Use MAYBE_BASELINK_P.

libcc1/
* libcp1plugin.cc (plugin_add_using_namespace): Call
finish_namespace_using_directive.

From-SVN: r248518

cp-tree.h (OVL_CHAIN): Check looking at OVERLOAD.

* cp-tree.h (OVL_CHAIN): Check looking at OVERLOAD.
(ovl_iterator): Add allow_inner field.  Adjust ctor.  Make
unduplicatable.
(ovl_iterator::maybe_push, ovl_iterator::pop): New.
(lkp_iterator): Add outer field.  Adjust ctor.
(lkp_iterator::operator++): New.
(lookup_mark, lookup_maybe_add): Declare.
* name-lookup.c (name_lookup): Delete fn_set member.
(name_lookup::preserve_state, name_lookup::restore_state): Unmark
and mark lookup.
(name_lookup::add_value): Use lookup_add directly.
(name_lookup::add_fns: Use lookup_maybe_add.
(name_lookup::search_adl): Mark and unmark fns.
(pushdecl): Adjust.
* pt.c (check_explicit_specialization): Use lookup_add directly.
* ptree.c (cxx_print_xnode): Show complete overload structure.
* tree.c (lookup_mark, lookup_maybe_add): New.

From-SVN: r248517

Renumber TDF_* flags to be contiguous.

2017-05-26  Martin Liska  <mliska@suse.cz>

* dumpfile.h (enum dump_kind): Renumber TDF_* flags to be contiguous.

From-SVN: r248515

Simplify usage of some TDF_* flags.

2017-05-26  Martin Liska  <mliska@suse.cz>

* cfg.c (check_bb_profile): Do not use TDF_COMMENT and print
always leading ';; '.
(dump_bb_info): Likewise.
(brief_dump_cfg): Likewise.
* cfgrtl.c (print_rtl_with_bb): Do not use TDF_COMMENT.
* dumpfile.c: Remove usage of TDF_VERBOSE.
* dumpfile.h (enum dump_kind): Likewise.
(dump_gimple_bb_header): Do not use TDF_COMMENT.
* print-tree.c (debug_verbose): Remove.
* tree-cfg.c (gimple_dump_cfg): Do not use TDF_COMMENT.
(dump_function_to_file): Remove dumps guarded with TDF_VERBOSE.
* tree-diagnostic.c (default_tree_printer): Replace
TDF_DIAGNOSTIC with TDF_SLIM.

From-SVN: r248514

tree-vect-loop-manip.c (create_intersect_range_checks_index): Pass in parameter loop, rather than loop_vinfo.

* tree-vect-loop-manip.c (create_intersect_range_checks_index): Pass
in parameter loop, rather than loop_vinfo.
(create_intersect_range_checks): Ditto.
(vect_create_cond_for_alias_checks): Update call to above functions.

From-SVN: r248513

re PR middle-end/80815 (wrong code because of broken runtime alias check in vectorizer)

PR tree-optimization/80815
* tree-data-ref.c (prune_runtime_alias_test_list): Simplify condition
for merging runtime alias checks.  Handle negative DR_STEPs.
gcc/testsuite
* gcc.dg/vect/pr80815-1.c: New test.
* gcc.dg/vect/pr80815-2.c: New test.

From-SVN: r248512

tree-vect-data-refs.c (Operator==, [...]): Move from ...

* tree-vect-data-refs.c (Operator==, comp_dr_with_seg_len_pair):
Move from ...
* tree-data-ref.c (Operator==, comp_dr_with_seg_len_pair): To here.
* tree-vect-data-refs.c (vect_prune_runtime_alias_test_list): Factor
out code pruning runtime alias checks.
* tree-data-ref.c (prune_runtime_alias_test_list): New function
factored out from above.
* tree-vectorizer.h (struct dr_with_seg_len, dr_with_seg_len_pair_t):
Move from ...
* tree-data-ref.h (struct dr_with_seg_len, dr_with_seg_len_pair_t):
... to here.
(prune_runtime_alias_test_list): New decalaration.

From-SVN: r248511

tree-vect-data-refs.c (compare_tree): Rename and move ...

* tree-vect-data-refs.c (compare_tree): Rename and move ...
* tree-data-ref.c (data_ref_compare_tree): ... to here.
* tree-data-ref.h (data_ref_compare_tree): New decalaration.
* tree-vect-data-refs.c (dr_group_sort_cmp): Update uses.
(operator==, comp_dr_with_seg_len_pair): Ditto.
(vect_prune_runtime_alias_test_list): Ditto.

From-SVN: r248510

* name-lookup.c (name_lookup::search_adl): ADL OMP UDR type args.

From-SVN: r248506

Bound partial-inlining-entry-probability param (PR ipa/80663).

2017-05-26  Martin Liska  <mliska@suse.cz>

PR ipa/80663
* params.def: Bound partial-inlining-entry-probability param.
2017-05-26  Martin Liska  <mliska@suse.cz>

PR ipa/80663
* g++.dg/ipa/pr80212.C: Remove the test as it does not longer
split at the problematic spot.
* gcc.dg/ipa/pr48195.c: Change 101 to 100 as 101 is no longer
a valid value of the param.

From-SVN: r248489

re PR sanitizer/80875 (UBSAN: compile time crash in fold_binary_loc at fold-const.c:9817)

PR sanitizer/80875
* fold-const.c (fold_binary_loc) <case MULT_EXPR>: Check if OP1
can be negated.

* c-c++-common/ubsan/pr80875.c: New test.

From-SVN: r248485

Replace absolute line numbers in gcc.dg

2017-05-26  Tom de Vries  <tom@codesourcery.com>

PR testsuite/80557
* gcc.dg/20011021-1.c: Replace absolute line numbers.
* gcc.dg/Wcxx-compat-8.c: Same.
* gcc.dg/Wobjsize-1.c: Same.
* gcc.dg/Wshadow-local-2.c: Same.
* gcc.dg/Wstrict-aliasing-converted-assigned.c: Same.
* gcc.dg/anon-struct-6.c: Same.
* gcc.dg/asm-wide-1.c: Same.
* gcc.dg/builtin-inf-1.c: Same.
* gcc.dg/builtin-redefine.c: Same.
* gcc.dg/c90-array-lval-6.c: Same.
* gcc.dg/c90-array-lval-7.c: Same.
* gcc.dg/c90-fordecl-1.c: Same.
* gcc.dg/c99-fordecl-2.c: Same.
* gcc.dg/cast-lvalue-1.c: Same.
* gcc.dg/cast-lvalue-2.c: Same.
* gcc.dg/compound-lvalue-1.c: Same.
* gcc.dg/cond-lvalue-1.c: Same.
* gcc.dg/cpp/20000419-1.c: Same.
* gcc.dg/cpp/backslash.c: Same.
* gcc.dg/cpp/backslash2.c: Same.
* gcc.dg/cpp/macspace1.c: Same.
* gcc.dg/cpp/macspace2.c: Same.
* gcc.dg/cpp/multiline-2.c: Same.
* gcc.dg/cpp/pr27777.c: Same.
* gcc.dg/cpp/pr30786.c: Same.
* gcc.dg/cpp/pr34602.c: Same.
* gcc.dg/cpp/redef1.c: Same.
* gcc.dg/cpp/tr-warn1.c: Same.
* gcc.dg/cpp/tr-warn3.c: Same.
* gcc.dg/cpp/tr-warn6.c: Same.
* gcc.dg/cpp/trad/hash.c: Same.
* gcc.dg/cpp/trad/redef1.c: Same.
* gcc.dg/cpp/ucs.c: Same.
* gcc.dg/declspec-10.c: Same.
* gcc.dg/declspec-11.c: Same.
* gcc.dg/declspec-18.c: Same.
* gcc.dg/format/c99-strftime-1.c: Same.
* gcc.dg/format/ext-3.c: Same.
* gcc.dg/format/pr72858.c: Same.
* gcc.dg/gomp/appendix-a/a.24.1.c: Same.
* gcc.dg/init-string-1.c: Same.
* gcc.dg/label-decl-3.c: Same.
* gcc.dg/m-un-2.c: Same.
* gcc.dg/nofixed-point-2.c: Same.
* gcc.dg/noncompile/20020213-1.c: Same.
* gcc.dg/pch/counter-2.c: Same.
* gcc.dg/plugin/diagnostic-test-string-literals-2.c: Same.
* gcc.dg/pr27528.c: Same.
* gcc.dg/pr27953.c: Same.
* gcc.dg/pr35899.c: Same.
* gcc.dg/pr37561.c: Same.
* gcc.dg/pr45461.c: Same.
* gcc.dg/pr45750.c: Same.
* gcc.dg/pr53196-2.c: Same.
* gcc.dg/pr53265.c: Same.
* gcc.dg/redecl-1.c: Same.
* gcc.dg/tls/thr-init-1.c: Same.
* gcc.dg/torture/pr51106-1.c: Same.
* gcc.dg/torture/pr51106-2.c: Same.
* gcc.dg/uninit-19.c: Same.
* gcc.dg/uninit-pr20644.c: Same.

From-SVN: r248484

cp-tree.h (struct lang_decl_decomp): New type.

* cp-tree.h (struct lang_decl_decomp): New type.
(struct lang_decl): Add u.decomp.
(LANG_DECL_DECOMP_CHECK): Define.
(DECL_DECOMPOSITION_P): Note it is set also on the vars
for user identifiers.
(DECL_DECOMP_BASE): Define.
(retrofit_lang_decl): Add extra int = 0 argument.
* lex.c (retrofit_lang_decl): Add SEL argument, if non-zero
use it to influence the selector choices and for selector
0 to non-zero transition copy old content.
(cxx_dup_lang_specific_decl): Handle DECL_DECOMPOSITION_P.
* decl.c (poplevel): For DECL_DECOMPOSITION_P, check
!DECL_DECOMP_BASE instead of !DECL_VALUE_EXPR.  Adjust warning
wording if decl is a structured binding.
(cp_finish_decomp): Pass 4 as the new argument to retrofit_lang_decl.
Set DECL_DECOMP_BASE.  Ignore DECL_READ_P sets from initialization
of individual variables for tuple structured bindings.
(grokdeclarator): Pass 4 as the new argument to retrofit_lang_decl.
Clear DECL_DECOMP_BASE.
* decl2.c (mark_used): Mark DECL_DECOMP_BASE TREE_USED as well.
* pt.c (tsubst_decomp_names): Assert DECL_DECOMP_BASE matches what
is expected.
* expr.c (mark_exp_read): Recurse on DECL_DECOMP_BASE instead of
DECL_VALUE_EXPR.

* g++.dg/cpp1z/decomp29.C (p): New variable.
(main): Add further tests.

From-SVN: r248483

re PR tree-optimization/80842 (ICE at -O3 on x86_64-linux-gnu in "set_lattice_value")

2017-05-26  Richard Biener  <rguenther@suse.de>

PR tree-optimization/80842
* tree-ssa-ccp.c (set_lattice_value): Always meet with the old
value.

* gcc.dg/torture/pr80842.c: New testcase.

From-SVN: r248482

re PR tree-optimization/80844 (OpenMP SIMD doesn't know how to efficiently zero a vector (its stores zeros and reloads))

2017-05-26  Richard Biener  <rguenther@suse.de>

PR tree-optimization/80844
* tree-vectorizer.c (adjust_simduid_builtins): Propagate
results.

From-SVN: r248481

Daily bump.

From-SVN: r248479

MAINTAINERS: Add self to Write After Approval

2017-05-25  Eric Gallager  <egall@gwmail.gwu.edu>

* MAINTAINERS: Add self to Write After Approval

From-SVN: r248475

re PR c++/79652 (ICE on invalid c++ code in warn_extern_redeclared_static in cp/decl.c:1231)

2017-05-25  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/79652
* g++.dg/cpp0x/pr79652.C: New.

From-SVN: r248474

re PR c++/71451 (ICE on invalid C++11 code on x86_64-linux-gnu: in dependent_type_p, at cp/pt.c:22599)

2017-05-25  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/71451
* g++.dg/cpp0x/variadic170.C: New.

From-SVN: r248473

re PR libfortran/78379 (Processor-specific versions for matmul)

2017-05-25  Thomas Koenig  <tkoenig@gcc.gnu.org>

PR libfortran/78379
* Makefile.am: Add generated/matmulavx128_*.c files.
Handle them for compiling and setting the right flags.
* acinclude.m4: Add tests for FMA3, FMA4 and AVX128.
* configure.ac: Call them.
* Makefile.in: Regenerated.
* config.h.in: Regenerated.
* configure: Regenerated.
* m4/matmul.m4:  Handle AMD chips by calling 128-bit AVX
versions which use FMA3 or FMA4.
* m4/matmulavx128.m4: New file.
        * generated/matmul_c10.c: Regenerated.
        * generated/matmul_c16.c: Regenerated.
        * generated/matmul_c4.c: Regenerated.
        * generated/matmul_c8.c: Regenerated.
        * generated/matmul_i1.c: Regenerated.
        * generated/matmul_i16.c: Regenerated.
        * generated/matmul_i2.c: Regenerated.
        * generated/matmul_i4.c: Regenerated.
        * generated/matmul_i8.c: Regenerated.
        * generated/matmul_r10.c: Regenerated.
        * generated/matmul_r16.c: Regenerated.
        * generated/matmul_r4.c: Regenerated.
        * generated/matmul_r8.c: Regenerated.
        * generated/matmulavx128_c10.c: New file.
        * generated/matmulavx128_c16.c: New file.
        * generated/matmulavx128_c4.c: New file.
        * generated/matmulavx128_c8.c: New file.
        * generated/matmulavx128_i1.c: New file.
        * generated/matmulavx128_i16.c: New file.
        * generated/matmulavx128_i2.c: New file.
        * generated/matmulavx128_i4.c: New file.
        * generated/matmulavx128_i8.c: New file.
        * generated/matmulavx128_r10.c: New file.
        * generated/matmulavx128_r16.c: New file.
        * generated/matmulavx128_r4.c: New file.
        * generated/matmulavx128_r8.c: New file.

From-SVN: r248472

* g++.dg/cpp1z/nontype-auto11.C: Move from pr79583.C.

From-SVN: r248471

PR c++/80605 - __is_standard_layout and zero-length array

* class.c (check_bases): Use DECL_FIELD_IS_BASE.

From-SVN: r248470

Kill OVL_CURRENT, OVL_NEXT.

* cp-tree.h (OVL_CURRENT, OVL_NEXT): Delete.
* name-lookup.c (set_decl_namespace): Use ovl_iterator.
(consider_binding_level): Use OVL_FIRST.
(cp_emit_debug_info_for_using): Use lkp_iterator.
* pt.c (check_explicit_specialization): Use ovl_iterator.

From-SVN: r248469

md.texi (Machine Constraints): Update x86 family machine constraints section to match 'config/i386/constraints.md'.

* doc/md.texi (Machine Constraints): Update x86 family
machine constraints section to match 'config/i386/constraints.md'.

From-SVN: r248468

Kill DECL_NAMESPACE_USERS, DECL_NAMESPACE_ASSOCIATIONS.

gcc/cp/
Kill DECL_NAMESPACE_USERS, DECL_NAMESPACE_ASSOCIATIONS.
* cp-tree.h (lang_decl_ns): Remove ns_users field.
(DECL_NAMESPACE_USERS, DECL_NAMESPACE_ASSOCIATIONS): Delete.
(TREE_INDIRECT_USING): Delete.
* name-lookup.h (is_associated_namespace): Delete.
* name-lookup.c (name_lookup::search_usings
name_lookup::do_queue_usings): Usings are always direct.
(is_associated_namespace): Delete.
(handle_namespace_attrs): Use DECL_NAMESPACE_INLINE_P.
(namespace_ancestor_1, namespace_ancestor): Delete.
(push_using_directive_1, push_using_directive): Delete.
(add_using_namespace_1): Delete.
(add_using_namespace): Reimplement.
(emit_debug_info_using_namespace): New.
(finish_namespace_using_directive, finish_local_using_directive
push_namespace): Adjust.
* tree.c (cp_free_lang_data): Remove DECL_NAMESPACE_USERS
handling.

libcc1/
* libcp1plugin.cc (plugin_make_namespace_inline): Check and set
DECL_NAMESPACE_INLINE_P.

gcc/testsuite/
* g++.dg/lookup/using56.C: New.
* g++.dg/lookup/using57.C: New.
* g++.dg/lookup/using58.C: New.
* g++.dg/lookup/using59.C: New.

From-SVN: r248467

invoke.texi (-Wcatch-value=): Document new warning option.

        * doc/invoke.texi (-Wcatch-value=): Document new warning option.

        * c.opt (Wcatch-value=): New C++ warning flag.

        * semantics.c (finish_handler_parms): Warn about non-reference
        * type
        catch handlers.

        * g++.dg/warn/Wcatch-value-1.C: New test.
        * g++.dg/warn/Wcatch-value-2.C: New test.
        * g++.dg/warn/Wcatch-value-3.C: New test.

From-SVN: r248466