* gcc.dg/ifcvt-1.c: Compile also for 64-bit i?86-*-* target.
	* gcc.dg/ifcvt-2.c: Ditto.
	* gcc.dg/zero_bits_compound-1.c: Ditto.
	* gcc.dg/zero_bits_compound-1.c: Ditto.
	* gcc.dg/pr40550.c: Simplify target selectors.
	Use dg-additional-options.
	* gcc.dg/pr47893.c: Ditto.
	* gcc.dg/pr68435.c: Compile also for i?86-*-* target.  Add -march=i686
	additional options for 32-bit x86 targets.
	* gcc.dg/pr70955.c: Move to ...
	* gcc.target/i386/pr70955.c: ... here.  Simplify target selector.

From-SVN: r240381

2016-09-22  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/61019
	* g++.dg/cpp0x/pr61019.C: New.

From-SVN: r240380

gcc/ChangeLog:
2016-09-22  Andre Vieira  <andre.simoesdiasvieira@arm.com>
            Terry Guo  <terry.guo@arm.com>

    * target.def (elf_flags_numeric): New target hook.
    * targhooks.h (default_asm_elf_flags_numeric): New.
    * varasm.c (default_asm_elf_flags_numeric): New.
    (default_elf_asm_named_section): Use new target hook.
    * config/arm/arm.opt (mpure-code): New.
    * config/arm/arm.h (SECTION_ARM_PURECODE): New.
    * config/arm/arm.c (arm_asm_init_sections): Add section
    attribute to default text section if -mpure-code.
    (arm_option_check_internal): Diagnose use of option with
    non supported targets and/or options.
    (arm_asm_elf_flags_numeric): New.
    (arm_function_section): New.
    (arm_elf_section_type_flags): New.
    * config/arm/elf.h (JUMP_TABLES_IN_TEXT_SECTION): Disable
    for -mpure-code.
    * gcc/doc/texi (TARGET_ASM_ELF_FLAGS_NUMERIC): New.
    * gcc/doc/texi.in (TARGET_ASM_ELF_FLAGS_NUMERIC): Likewise.

gcc/testsuite/ChangeLog:
2016-09-22  Andre Vieira  <andre.simoesdiasvieira@arm.com>
            Terry Guo  <terry.guo@arm.com>

    * gcc.target/arm/pure-code/ffunction-sections.c: New.
    * gcc.target/arm/pure-code/no-literal-pool.c: New.
    * gcc.target/arm/pure-code/pure-code.exp: New.

Co-Authored-By: Terry Guo <terry.guo@arm.com>

From-SVN: r240379

    
    Reviewed-on: https://go-review.googlesource.com/29593

From-SVN: r240378

	* gcc.dg/debug/dwarf2/const-2b.c: Also compile for x86_64-*-*.
	Remove SSE effective target requirement.

From-SVN: r240377

From-SVN: r240375

re PR c++/71979 (ICE with on C++ code with incorrect type in overloaded base class '=' operator: in build_base_path, at cp/class.c:304)

/cp
2016-09-22  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/71979
	* class.c (build_base_path): Allow for lookup_base returning
	NULL_TREE.

/testsuite
2016-09-22  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/71979
	* g++.dg/cpp0x/pr71979.C: New.

From-SVN: r240373

From-SVN: r240369

From-SVN: r240365

	* doc/xml/manual/status_cxx2017.xml: Document status.
	* doc/html/*: Regenerate.
	* include/Makefile.am: Add bits/node_handle.h and reorder.
	* include/Makefile.in: Regenerate.
	* include/bits/hashtable.h (_Hashtable::node_type)
	(_Hashtable::insert_return_type, _Hashtable::_M_reinsert_node)
	(_Hashtable::_M_reinsert_node_multi, _Hashtable::extract)
	(_Hashtable::_M_merge_unique, _Hashtable::_M_merge_multi): Define.
	(_Hash_merge_helper): Define primary template.
	* include/bits/node_handle.h: New header.
	* include/bits/stl_map.h (map): Declare _Rb_tree_merge_helper as
	friend.
	(map::node_type, map::insert_return_type, map::extract, map::merge)
	(map::insert(node_type&&), map::insert(const_iterator, node_type&&)):
	Define new members.
	(_Rb_tree_merge_helper): Specialize for map.
	* include/bits/stl_multimap.h (multimap): Declare _Rb_tree_merge_helper
	as friend.
	(multimap::node_type, multimap::extract, multimap::merge)
	(multimap::insert(node_type&&))
	(multimap::insert(const_iterator, node_type&&)): Define.
	(_Rb_tree_merge_helper): Specialize for multimap.
	* include/bits/stl_multiset.h (multiset): Declare _Rb_tree_merge_helper
	as friend.
	(multiset::node_type, multiset::extract, multiset::merge)
	(multiset::insert(node_type&&))
	(multiset::insert(const_iterator, node_type&&)): Define.
	* include/bits/stl_set.h (set): Declare _Rb_tree_merge_helper as
	friend.
	(set::node_type, set::insert_return_type, set::extract, set::merge)
	(set::insert(node_type&&), set::insert(const_iterator, node_type&&)):
	Define.
	(_Rb_tree_merge_helper): Specialize for set.
	* include/bits/stl_tree.h (_Rb_tree): Declare _Rb_tree<> as friend.
	(_Rb_tree::node_type, _Rb_tree::insert_return_type)
	(_Rb_tree::_M_reinsert_node_unique, _Rb_tree::_M_reinsert_node_equal)
	(_Rb_tree::_M_reinsert_node_hint_unique)
	(_Rb_tree::_M_reinsert_node_hint_equal, _Rb_tree::extract)
	(_Rb_tree::_M_merge_unique, _Rb_tree::_M_merge_equal): Define.
	(_Rb_tree_merge_helper): Specialize for multiset.
	* include/bits/unordered_map.h (unordered_map): Declare
	unordered_map<> and unordered_multimap<> as friends.
	(unordered_map::node_type, unordered_map::insert_return_type)
	(unordered_map::extract, unordered_map::merge)
	(unordered_map::insert(node_type&&))
	(unordered_map::insert(const_iterator, node_type&&))
	(unordered_multimap): Declare _Hash_merge_helper as friend.
	(unordered_multimap::node_type, unordered_multimap::extract)
	(unordered_multimap::merge, unordered_multimap::insert(node_type&&))
	(unordered_multimap::insert(const_iterator, node_type&&)): Define.
	(_Hash_merge_helper): Specialize for unordered maps and multimaps.
	* include/bits/unordered_set.h (unordered_set, unordered_multiset):
	Declare _Hash_merge_helper as friend.
	(unordered_set::node_type, unordered_set::insert_return_type)
	(unordered_set::extract, unordered_set::merge)
	(unordered_set::insert(node_type&&))
	(unordered_set::insert(const_iterator, node_type&&)): Define.
	(unordered_multiset::node_type, unordered_multiset::extract)
	(unordered_multiset::merge, unordered_multiset::insert(node_type&&))
	(unordered_multiset::insert(const_iterator, node_type&&)): Define.
	(_Hash_merge_helper): Specialize for unordered sets and multisets.
	* include/debug/map.h (map): Add using declarations or forwarding
	functions for new members.
	* include/debug/map.h (multimap): Likewise.
	* include/debug/map.h (multiset): Likewise.
	* include/debug/map.h (set): Likewise.
	* include/debug/unordered_map (unordered_map, unordered_multimap):
	Likewise.
	* include/debug/unordered_set( unordered_set, unordered_multiset):
	Likewise.
	* python/libstdcxx/v6/printers.py (get_value_from_aligned_membuf): New
	helper function.
	(get_value_from_list_node, get_value_from_Rb_tree_node): Use helper.
	(StdNodeHandlePrinter): Define printer for node handles.
	(build_libstdcxx_dictionary): Register StdNodeHandlePrinter.
	* testsuite/23_containers/map/modifiers/extract.cc: New.
	* testsuite/23_containers/map/modifiers/merge.cc: New.
	* testsuite/23_containers/multimap/modifiers/extract.cc: New.
	* testsuite/23_containers/multimap/modifiers/merge.cc: New.
	* testsuite/23_containers/multiset/modifiers/extract.cc: New.
	* testsuite/23_containers/multiset/modifiers/merge.cc: New.
	* testsuite/23_containers/set/modifiers/extract.cc: New.
	* testsuite/23_containers/set/modifiers/merge.cc: New.
	* testsuite/23_containers/unordered_map/modifiers/extract.cc: New.
	* testsuite/23_containers/unordered_map/modifiers/merge.cc: New.
	* testsuite/23_containers/unordered_multimap/modifiers/extract.cc:
	New.
	* testsuite/23_containers/unordered_multimap/modifiers/merge.cc: New.
	* testsuite/23_containers/unordered_multiset/modifiers/extract.cc:
	New.
	* testsuite/23_containers/unordered_multiset/modifiers/merge.cc: New.
	* testsuite/23_containers/unordered_set/modifiers/extract.cc: New.
	* testsuite/23_containers/unordered_set/modifiers/merge.cc: New.
	* testsuite/23_containers/unordered_set/instantiation_neg.cc: Adjust
	dg-error lineno.
	* testsuite/libstdc++-prettyprinters/cxx17.cc: Test node handles.

From-SVN: r240363

gcc/ChangeLog:

2016-09-22  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

	* emit-rtl.c (next_cc0_user): Make argument type rtx_insn *.
	* rtl.h: Adjust prototype.

From-SVN: r240362

gcc/ChangeLog:

2016-09-22  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

	* emit-rtl.c (next_active_insn): Change argument type to
	rtx_insn *.
	(prev_active_insn): Likewise.
	(active_insn_p): Likewise.
	* rtl.h: Adjust prototypes.
	* cfgcleanup.c (merge_blocks_move_successor_nojumps): Adjust.
	* config/arc/arc.md: Likewise.
	* config/pa/pa.c (branch_to_delay_slot_p): Likewise.
	(branch_needs_nop_p): Likewise.
	(use_skip_p): Likewise.
	* config/sh/sh.c (gen_block_redirect): Likewise.
	(split_branches): Likewise.
	* reorg.c (optimize_skip): Likewise.
	(fill_simple_delay_slots): Likewise.
	(fill_slots_from_thread): Likewise.
	(relax_delay_slots): Likewise.
	* resource.c (mark_target_live_regs): Likewise.

From-SVN: r240361

gcc/ChangeLog:

2016-09-22  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

	* config/cris/cris.c (cris_asm_output_case_end): Change argument
	type to rtx_insn *.
	* emit-rtl.c (next_nonnote_nondebug_insn): Likewise.
	(prev_nonnote_nondebug_insn): Likewise.
	* config/cris/cris-protos.h: Adjust prototype.
	* rtl.h: Likewise.
	* jump.c (rtx_renumbered_equal_p): Adjust.

From-SVN: r240360

gcc/ChangeLog:

2016-09-22  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

	* emit-rtl.c (prev_real_insn): Change argument type to rtx_insn *.
	* rtl.h: Adjust prototype.
	* config/sh/sh.md: Adjust.
	* dwarf2out.c (add_var_loc_to_decl): Likewise.

From-SVN: r240359

gcc/ChangeLog:

2016-09-22  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

	* emit-rtl.c (next_nondebug_insn): Change argument type to
	rtx_insn *.
	(prev_nondebug_insn): Likewise.
	* loop-doloop.c (doloop_condition_get): Likewise.
	* rtl.h: Adjust prototype.
	* cfgloop.h: Likewise.

From-SVN: r240358

gcc/ChangeLog:

2016-09-22  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

	* emit-rtl.c (next_nonnote_insn): Change argument type to
	rtx_insn *.
	(prev_nonnote_insn): Likewise.
	* jump.c (reversed_comparison_code_parts): Likewise.
	(reversed_comparison): Likewise.
	* rtl.h: Adjust prototypes.
	* config/arc/arc.md: Adjust.
	* cse.c (find_comparison_args): Likewise.
	* reorg.c (redundant_insn): Change return type to rtx_insn *.
	(fix_reg_dead_note): Change argument type to rtx_insn *.
	(delete_prior_computation): Likewise.
	(delete_computation): Likewise.
	(fill_slots_from_thread): Adjust.
	(relax_delay_slots): Likewise.
	* simplify-rtx.c (simplify_unary_operation_1): Likewise.
	(simplify_relational_operation_1): Likewise.
	(simplify_ternary_operation): Likewise.

From-SVN: r240357

gcc/ChangeLog:

2016-09-22  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

	* config/arc/arc-protos.h (arc_label_align): Change type of
	variables from rtx to rtx_insn *.
	* config/arc/arc.c (arc_label_align): Likewise.
	* config/arm/arm.c (any_sibcall_could_use_r3): Likewise.
	* config/bfin/bfin.c (workaround_speculation): Likewise.
	* config/c6x/c6x.c (find_next_cycle_insn): Likewise.
	(find_last_same_clock): Likewise.
	(reorg_split_calls): Likewise.
	* config/cris/cris-protos.h (cris_cc0_user_requires_cmp): Likewise.
	* config/cris/cris.c (cris_cc0_user_requires_cmp): Likewise.
	* config/h8300/h8300-protos.h (same_cmp_preceding_p): Likewise.
	(same_cmp_following_p): Likewise.
	* config/h8300/h8300.c (same_cmp_preceding_p): Likewise.
	(same_cmp_following_p): Likwise.
	* config/m32r/m32r.c (m32r_expand_epilogue): Likewise.
	* config/nds32/nds32-protos.h (nds32_target_alignment): Likewise.
	* config/nds32/nds32.c (nds32_target_alignment): Likewise.
	* config/rl78/rl78.c (rl78_alloc_physical_registers_op2):
	* Likewise.
	(rl78_alloc_physical_registers_cmp): Likewise.
	(rl78_alloc_physical_registers_umul): Likewise.
	(rl78_calculate_death_notes): Likewise.
	* config/s390/s390-protos.h (s390_label_align): Likewise.
	* config/s390/s390.c (s390_label_align): Likewise.
	* config/sh/sh.c (barrier_align): Likewise.
	* config/sparc/sparc-protos.h (emit_cbcond_nop): Likewise.
	* config/sparc/sparc.c (sparc_asm_function_epilogue): Likewise.
	(emit_cbcond_nop): Likewise.

From-SVN: r240356

2016-09-22  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * g++.dg/pr77550.C: Use __SIZE_TYPE__.

From-SVN: r240355

Fix PR ipa/77653

	PR ipa/77653
	* gcc.dg/ipa/pr77653.c: New test.
	PR ipa/77653
	* ipa-icf.c (sem_variable::merge): Yield merge operation if
	alias address matters, not necessarily address of original.

From-SVN: r240354

2016-09-22  Richard Biener  <rguenther@suse.de>

	PR middle-end/77697
	* gimple-fold.c (fold_array_ctor_reference): Turn asserts into
	fold fails.

From-SVN: r240353

re PR tree-optimization/77677 (ICE at -O1 and above in both 32-bit and 64-bit modes on x86_64-linux-gnu (internal compiler error: in set_value_range, at tree-vrp.c:361))

2016-09-22  Richard Biener  <rguenther@suse.de>

	PR middle-end/77677
	* gimple-match-head.c (gimple_resimplify1): Drop TREE_OVERFLOW
	from constant folding results.
	(gimple_resimplify2): Likewise.
	(gimple_resimplify3): Likewise.

From-SVN: r240352

2016-09-22  Richard Biener  <rguenther@suse.de>

	PR middle-end/77678
	* expr.c (expand_expr_real_1): Guard array access against negative
	offset.

From-SVN: r240351

	* gimple-ssa-sprintf.c (format_floating_max): Use GMP_RNDN instead
	of MPFR_RNDN.
	(format_floating): Likewise.

From-SVN: r240350

2016-09-22  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/48298
	* gfortran.h : Place the pseudo operators INTRINSIC_FORMATTED
	and INTRINSIC_UNFORMATTED after the sentinel in enum
	gfc_intrinsic_op so that they do not appear as place holders
	in module_write.
	* interface.c (dtio_op): Comment on the special nature of the
	pseudo operators INTRINSIC FORMATTED and INTRINSIC_UNFORMATTED.

From-SVN: r240349

	PR fortran/77665
	* tree-inline.c (remap_gimple_stmt): Set has_simduid_loops
	for all IFN_GOMP_SIMD_* internal fns, not just for
	IFN_GOMP_SIMD_ORDERED_*.

	* gfortran.dg/gomp/pr77665.f90: New test.

From-SVN: r240348

	* testsuite/20_util/optional/77288.cc: Don't use exception_ptr.

From-SVN: r240347

2016-09-22  Richard Biener  <rguenther@suse.de>

	java/
	* class.c (push_super_field): Set DECL_CONTEXT.

From-SVN: r240346

	* python/libstdcxx/v6/printers.py (StdVariantPrinter): Adjust for
	recent change to _Variant_storage.
	* testsuite/libstdc++-prettyprinters/cxx17.cc: Test variant with
	reference type.

From-SVN: r240345

	* include/bits/uses_allocator.h (__uses_allocator_construct): Qualify
	std::forward and ::new. Cast pointer to void*.
	* include/std/variant (_Variant_storage, _Union, _Variant_base)
	(__access, __visit_invoke, variant, visit): Qualify std::forward.
	* testsuite/20_util/variant/compile.cc: Test for ADL problems.

From-SVN: r240344

	* libstdc++-v3/include/std/variant (variant::operator=): Fix assignment
	on references.
	* libstdc++-v3/testsuite/20_util/variant/compile.cc: Add test.

From-SVN: r240343

interface.c (check_dtio_interface1): Introduce errors for alternate returns and incorrect numbers of arguments.

2016-09-22  Paul Thomas  <pault@gcc.gnu.org>

	* interface.c (check_dtio_interface1): Introduce errors for
	alternate returns and incorrect numbers of arguments.
	(gfc_find_specific_dtio_proc): Return cleanly if the derived
	type either doesn't exist or has no namespace.

2016-09-22  Paul Thomas  <pault@gcc.gnu.org>

	* gfortran.dg/dtio_11.f90: Correct for changed error messages.
	* gfortran.dg/dtio_13.f90: New test.

From-SVN: r240342

2016-09-21  Louis Krupp  <louis.krupp@zoho.com>

	PR fortran/66107
	* gfortran.dg/pr66107.f90: New test.

2016-09-21  Louis Krupp  <louis.krupp@zoho.com>

	PR fortran/66107
	* decl.c (add_init_expr_to_sym): Catch variable character length
	in parameter array.

From-SVN: r240341

re PR libstdc++/77641 (std::variant copy-initialization fails for type with non-trivial constexpr ctor)

	PR libstdc++/77641
	* include/std/variant (_Variant_storage::_Variant_storage):
	Change _Variant_storage's union to be default constructible.
	* testsuite/20_util/variant/compile.cc: New test.

From-SVN: r240340

From-SVN: r240339

2016-09-21  Michael Meissner  <meissner@linux.vnet.ibm.com>

	PR target/77670
	* config/rs6000/predicates.md (invert_fpmask_comparison_operator):
	New predicate that matches the ISA 3.0 XSCMP{EQ,GT,GE}DP
	instructions when you want to invert the test.
	* config/rs6000/rs6000.md (fpmask<mode>): Use the arguments in the
	correct order for XXSEL.
	(mov<SFDF:mode><SFDF2:mode>cc_invert_p9): Define the inverted test
	for using XSCMP{EQ,GT,GE}DP.

From-SVN: r240336

2016-09-21  Michael Meissner  <meissner@linux.vnet.ibm.com>

	PR target/77670
	* config/rs6000/predicates.md (invert_fpmask_comparison_operator):
	New predicate that matches the ISA 3.0 XSCMP{EQ,GT,GE}DP
	instructions when you want to invert the test.
	* config/rs6000/rs6000.md (fpmask<mode>): Use the arguments in the
	correct order for XXSEL.
	(mov<SFDF:mode><SFDF2:mode>cc_invert_p9): Define the inverted test
	for using XSCMP{EQ,GT,GE}DP.

From-SVN: r240335

    
    This change removes the gccgo-specific hashmap code and replaces it with
    the hashmap code from the Go 1.7 runtime.  The Go 1.7 hashmap code is
    more efficient, does a better job on details like when to update a key,
    and provides some support against denial-of-service attacks.
    
    The compiler is changed to call the new hashmap functions instead of the
    old ones.
    
    The compiler now tracks which types are reflexive and which require
    updating when used as a map key, and records the information in map type
    descriptors.
    
    Map_index_expression is simplified.  The special case for a map index on
    the right hand side of a tuple expression has been unnecessary for some
    time, and is removed.  The support for specially marking a map index as
    an lvalue is removed, in favor of lowering an assignment to a map index
    into a function call.  The long-obsolete support for a map index of a
    pointer to a map is removed.
    
    The __go_new_map_big function (known to the compiler as
    Runtime::MAKEMAPBIG) is no longer needed, as the new runtime.makemap
    function takes an int64 hint argument.
    
    The old map descriptor type and supporting expression is removed.
    
    The compiler was still supporting the long-obsolete syntax `m[k] = 0,
    false` to delete a value from a map.  That is now removed, requiring a
    change to one of the gccgo-specific tests.
    
    The builtin len function applied to a map or channel p is now compiled
    as `p == nil ? 0 : *(*int)(p)`.  The __go_chan_len function (known to
    the compiler as Runtime::CHAN_LEN) is removed.
    
    Support for a shared zero value for maps to large value types is
    introduced, along the lines of the gc compiler.  The zero value is
    handled as a common variable.
    
    The hash function is changed to take a seed argument, changing the
    runtime hash functions and the compiler-generated hash functions.
    Unlike the gc compiler, both the hash and equal functions continue to
    take the type length.
    
    Types that can not be compared now store nil for the hash and equal
    functions, rather than pointing to functions that throw.  Interface hash
    and comparison functions now check explicitly for nil.  This matches the
    gc compiler and permits a simple implementation for ismapkey.
    
    The compiler is changed to permit marking struct and array types as
    incomparable, meaning that they have no hash or equal function.  We use
    this for thunk types, removing the existing special code to avoid
    generating hash/equal functions for them.
    
    The C runtime code adds memclr, memequal, and memmove functions.
    
    The hashmap code uses go:linkname comments to make the functions
    visible, as otherwise the compiler would discard them.
    
    The hashmap code comments out the unused reference to the address of the
    first parameter in the race code, as otherwise the compiler thinks that
    the parameter escapes and copies it onto the heap.  This is probably not
    needed when we enable escape analysis.
    
    Several runtime map tests that ere previously skipped for gccgo are now
    run.
    
    The Go runtime picks up type kind information and stubs.  The type kind
    information causes the generated runtime header file to define some
    constants, including `empty`, and the C code is adjusted accordingly.
    
    A Go-callable version of runtime.throw, that takes a Go string, is
    added to be called from the hashmap code.
    
    Reviewed-on: https://go-review.googlesource.com/29447

	* go.go-torture/execute/map-1.go: Replace old map deletion syntax
	with call to builtin delete function.

From-SVN: r240334

Bundle up various global variables within gensupport.c into a
class rtx_reader, with a view towards making it easier to run the
code more than once in-process.

gcc/ChangeLog:
	* genconstants.c (main): Introduce noop_reader and convert call
	to read_md_files to a method call.
	* genenums.c (main): Likewise.
	* genmddeps.c (main): Likewise.
	* genpreds.c (write_tm_constrs_h): Replace use of "in_fname" with
	rtx_reader_ptr->get_top_level_filename ().
	(write_tm_preds_h): Likewise.
	(write_insn_preds_c): Likewise.
	* gensupport.c (class gen_reader): New subclass of rtx_reader.
	(rtx_handle_directive): Convert to...
	(gen_reader::handle_unknown_directive): ...this.
	(init_rtx_reader_args_cb): Convert return type from bool to
	rtx_reader *.  Create a gen_reader instance, using it for the
	call to read_md_files.  Return it if no errors occur.
	(init_rtx_reader_args): Convert return type from bool to
	rtx_reader *.
	* gensupport.h (init_rtx_reader_args_cb): Likewise.
	(init_rtx_reader_args_cb): Likewise.
	* read-md.c (struct file_name_list): Move to class rtx_reader.
	(read_md_file): Delete in favor of rtx_reader::m_read_md_file.
	(read_md_filename): Delete in favor of
	rtx_reader::m_read_md_filename.
	(read_md_lineno): Delete in favor of rtx_reader::m_read_md_lineno.
	(in_fname): Delete in favor of rtx_reader::m_toplevel_fname.
	(base_dir): Delete in favor of rtx_reader::m_base_dir.
	(first_dir_md_include): Delete in favor of
	rtx_reader::m_first_dir_md_include.
	(last_dir_md_include_ptr): Delete in favor of
	rtx_reader::m_last_dir_md_include_ptr.
	(max_include_len): Delete.
	(rtx_reader_ptr): New.
	(fatal_with_file_and_line): Use get_filename and get_lineno
	accessors of rtx_reader_ptr.
	(require_char_ws): Likewise.
	(rtx_reader::read_char): New method, based on ::read_char.
	(rtx_reader::unread_char): New method, based on ::unread_char.
	(read_escape): Use get_filename and get_lineno accessors of
	rtx_reader_ptr.
	(read_braced_string): Use get_lineno accessor of rtx_reader_ptr.
	(read_string): Use get_filename and get_lineno accessors of
	rtx_reader_ptr.
	(rtx_reader::rtx_reader): New ctor.
	(rtx_reader::~rtx_reader): New dtor.
	(handle_include): Convert from a function to...
	(rtx_reader::handle_include): ...this method, converting
	handle_directive from a callback to a virtual function.
	(handle_file): Likewise, converting to...
	(rtx_reader::handle_file): ...this method.
	(handle_toplevel_file): Likewise, converting to...
	(rtx_reader::handle_toplevel_file): ...this method.
	(rtx_reader::get_current_location): New method.
	(parse_include): Convert from a function to...
	(rtx_reader::add_include_path): ...this method, dropping redundant
	update to unused max_include_len.
	(read_md_files): Convert from a function to...
	(rtx_reader::read_md_files): ...this method, converting
	handle_directive from a callback to a virtual function.
	(noop_reader::handle_unknown_directive): New method.
	* read-md.h (directive_handler_t): Delete this typedef.
	(in_fname): Delete.
	(read_md_file): Delete.
	(read_md_lineno): Delete.
	(read_md_filename): Delete.
	(class rtx_reader): New class.
	(rtx_reader_ptr): New decl.
	(class noop_reader): New subclass of rtx_reader.
	(read_char): Reimplement in terms of rtx_reader::read_char.
	(unread_char): Reimplement in terms of rtx_reader::unread_char.
	(read_md_files): Delete.
	* read-rtl.c (read_rtx_code): Update for deletion of globals
	read_md_filename and read_md_lineno.

From-SVN: r240333

From-SVN: r240332

c-common.c (c_common_truthvalue_conversion): Inhibit Wint-in-bool-context warning with from_macro_definition_at.

2016-09-21  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * c-common.c (c_common_truthvalue_conversion): Inhibit
        Wint-in-bool-context warning with from_macro_definition_at.
        Mention the expression will always evaluate to true.

From-SVN: r240331