This patch reimplements the omp_target_reorder_clauses function in
anticipation of supporting "deeper" struct mappings (that is, with
several structure dereference operators, or similar).

The idea is that in place of the (possibly quadratic) algorithm in
omp_target_reorder_clauses that greedily moves clauses containing
addresses that are subexpressions of other addresses before those other
addresses, we employ a topological sort algorithm to calculate a proper
order for map clauses. This should run in linear time, and hopefully
handles degenerate cases where multiple "levels" of indirect accesses
are present on a given directive.

The new method also takes care to keep clause groups together, addressing
the concerns raised in:

  https://gcc.gnu.org/pipermail/gcc-patches/2021-May/570501.html

To figure out if some given clause depends on a base pointer in another
clause, we strip off the outer layers of the address expression, and check
(via a tree_operand_hash hash table we have built) if the result is a
"base pointer" as defined in OpenMP 5.0 (1.2.6 Data Terminology). There
are some subtleties involved, however:

 - We must treat MEM_REF with zero offset the same as INDIRECT_REF.
   This should probably be fixed in the front ends instead so we always
   use a canonical form (probably INDIRECT_REF). The following patch
   shows one instance of the problem, but there may be others:

   https://gcc.gnu.org/pipermail/gcc-patches/2021-May/571382.html

 - Mapping a whole struct implies mapping each of that struct's
   elements, which may be base pointers. Because those base pointers
   aren't necessarily explicitly referenced in the directive in question,
   we treat the whole-struct mapping as a dependency instead.

2022-09-13  Julian Brown  <julian@codesourcery.com>

gcc/
	* gimplify.cc (is_or_contains_p, omp_target_reorder_clauses): Delete
	functions.
	(omp_tsort_mark): Add enum.
	(omp_mapping_group): Add struct.
	(debug_mapping_group, omp_get_base_pointer, omp_get_attachment,
	omp_group_last, omp_gather_mapping_groups, omp_group_base,
	omp_index_mapping_groups, omp_containing_struct,
	omp_tsort_mapping_groups_1, omp_tsort_mapping_groups,
	omp_segregate_mapping_groups, omp_reorder_mapping_groups): New
	functions.
	(gimplify_scan_omp_clauses): Call above functions instead of
	omp_target_reorder_clauses, unless we've seen an error.
	* omp-low.cc (scan_sharing_clauses): Avoid strict test if we haven't
	sorted mapping groups.

gcc/testsuite/
	* g++.dg/gomp/target-lambda-1.C: Adjust expected output.
	* g++.dg/gomp/target-this-3.C: Likewise.
	* g++.dg/gomp/target-this-4.C: Likewise.

On Sat, Sep 03, 2022 at 10:07:27AM +0200, Jakub Jelinek via Gcc-patches wrote:
> Incrementally, I'd like to change the way we differentiate between
> stand-alone and block-associated ordered constructs, because the current
> way of looking for presence of doacross clause doesn't work well if those
> clauses are removed because they had been invalid (wrong syntax or
> unknown variables in it etc.)

The following, so far only lightly tested, patch implements that.

2022-09-06  Jakub Jelinek  <jakub@redhat.com>

gcc/
	* gimple.h (enum gf_mask): Add GF_OMP_ORDERED_STANDALONE enumerator.
	(gimple_omp_subcode):  Use GIMPLE_OMP_ORDERED instead of
	GIMPLE_OMP_TEAMS as upper bound.
	(gimple_omp_ordered_standalone_p, gimple_omp_ordered_standalone): New
	inline functions.
	* gimplify.cc (find_standalone_omp_ordered): Look for OMP_ORDERED with
	NULL OMP_ORDERED_BODY rather than with OMP_DOACROSS clause.
	(gimplify_expr): Call gimple_omp_ordered_standalone for OMP_ORDERED
	with NULL OMP_ORDERED_BODY.
	* omp-low.cc (check_omp_nesting_restrictions): Use
	gimple_omp_ordered_standalone_p test instead of
	omp_find_clause (..., OMP_CLAUSE_DOACROSS).
	(lower_omp_ordered): Likewise.
	* omp-expand.cc (expand_omp, build_omp_regions_1,
	omp_make_gimple_edges): Likewise.
gcc/cp/
	* pt.cc (tsubst_expr) <case OMP_ORDERED>: If OMP_BODY was NULL, keep
	it NULL after instantiation too.
gcc/testsuite/
	* c-c++-common/gomp/sink-3.c: Don't expect a superfluous error during
	error recovery.
	* c-c++-common/gomp/doacross-6.c (foo): Add further tests.

The following patch implements part of the OpenMP 5.2 changes related
to ordered loops and with the assumed resolution of
https://github.com/OpenMP/spec/issues/3302 issues.

The changes are:
1) the depend clause on stand-alone ordered constructs has been renamed
   to doacross (because depend clause has different syntax on other
   constructs) with some syntax changes below, depend clause is deprecated
   (we'll deprecate stuff on the GCC side only when we have everything else
   from 5.2 implemented)
   depend(source) -> doacross(source:) or doacross(source:omp_cur_iteration)
   depend(sink:vec) -> doacross(sink:vec) (where vec has the same syntax
					   as before)
2) in 5.1 and before it has been significant whether ordered clause has or
   doesn't have an argument, if it didn't, only block-associated ordered
   could appear in the body, if it did, only stand-alone ordered could appear
   in the body, all loops had to be perfectly nested, no associated
   range-based for loops, no linear clause on work-sharing loop and ordered
   clause with an argument wasn't allowed on composite for simd.
   In 5.2, whether ordered clause has or doesn't have an argument is
   insignificant (except for bugs in the standard, #3302 mentions those),
   if the argument is missing, it is simply treated as equal to collapse
   argument (if any, otherwise 1).  The implementation better should be able
   to differentiate between ordered and doacross loops at compile time
   which previously was through the absence or presence of the argument,
   now it is done through looking at the body of the construct lexically
   and looking for stand-alone ordered constructs.  If there are any,
   it is to be handled as doacross loop, otherwise it is ordered loop
   (but in that case ordered argument if present must be equal to collapse
   argument - 5.2 says instead it must be one, but that is clearly wrong
   and mentioned in #3302) - stand-alone ordered constructs must appear
   lexically in the body (and had to before as well).  For the restrictions
   mentioned above, the for simd restriction is gone (stand-alone ordered
   can't appear in simd construct, so that is enough), and the other rules
   are expected to be changed into something related to presence of
   stand-alone ordered constructs in the body
3) 5.2 allows a new syntax, doacross(sink:omp_cur_iteration-1), which
   means wait for previous iteration in the iteration space of all the
   associated loops

The following patch implements that, except that we sorry for now
on the doacross(sink:omp_cur_iteration-1) syntax during omp expansion
because library side isn't done yet for it.  It doesn't implement it for
the Fortran FE either.
Incrementally, I'd like to change the way we differentiate between
stand-alone and block-associated ordered constructs, because the current
way of looking for presence of doacross clause doesn't work well if those
clauses are removed because they had been invalid (wrong syntax or
unknown variables in it etc.) and of course implement
doacross(sink:omp_cur_iteration-1).

2022-09-03  Jakub Jelinek  <jakub@redhat.com>

gcc/
	* tree-core.h (enum omp_clause_code): Add OMP_CLAUSE_DOACROSS.
	(enum omp_clause_depend_kind): Remove OMP_CLAUSE_DEPEND_SOURCE
	and OMP_CLAUSE_DEPEND_SINK, add OMP_CLAUSE_DEPEND_INVALID.
	(enum omp_clause_doacross_kind): New type.
	(struct tree_omp_clause): Add subcode.doacross_kind member.
	* tree.h (OMP_CLAUSE_DEPEND_SINK_NEGATIVE): Remove.
	(OMP_CLAUSE_DOACROSS_KIND): Define.
	(OMP_CLAUSE_DOACROSS_SINK_NEGATIVE): Define.
	(OMP_CLAUSE_DOACROSS_DEPEND): Define.
	(OMP_CLAUSE_ORDERED_DOACROSS): Define.
	* tree.cc (omp_clause_num_ops, omp_clause_code_name): Add
	OMP_CLAUSE_DOACROSS entries.
	* tree-nested.cc (convert_nonlocal_omp_clauses,
	convert_local_omp_clauses): Handle OMP_CLAUSE_DOACROSS.
	* tree-pretty-print.cc (dump_omp_clause): Don't handle
	OMP_CLAUSE_DEPEND_SOURCE and OMP_CLAUSE_DEPEND_SINK.  Handle
	OMP_CLAUSE_DOACROSS.
	* gimplify.cc (gimplify_omp_depend): Don't handle
	OMP_CLAUSE_DEPEND_SOURCE and OMP_CLAUSE_DEPEND_SINK.
	(gimplify_scan_omp_clauses): Likewise.  Handle OMP_CLAUSE_DOACROSS.
	(gimplify_adjust_omp_clauses): Handle OMP_CLAUSE_DOACROSS.
	(find_standalone_omp_ordered): New function.
	(gimplify_omp_for): When OMP_CLAUSE_ORDERED is present, search
	body for OMP_ORDERED with OMP_CLAUSE_DOACROSS and if found,
	set OMP_CLAUSE_ORDERED_DOACROSS.
	(gimplify_omp_ordered): Don't handle OMP_CLAUSE_DEPEND_SINK or
	OMP_CLAUSE_DEPEND_SOURCE, instead check OMP_CLAUSE_DOACROSS, adjust
	diagnostics that presence or absence of ordered clause parameter
	is irrelevant.  Handle doacross(sink:omp_cur_iteration-1).  Use
	actual user name of the clause - doacross or depend - in diagnostics.
	* omp-general.cc (omp_extract_for_data): Don't set fd->ordered
	if !OMP_CLAUSE_ORDERED_DOACROSS (t).  If
	OMP_CLAUSE_ORDERED_DOACROSS (t) but !OMP_CLAUSE_ORDERED_EXPR (t),
	set fd->ordered to -1 and set it after the loop in that case to
	fd->collapse.
	* omp-low.cc (check_omp_nesting_restrictions): Don't handle
	OMP_CLAUSE_DEPEND_SOURCE nor OMP_CLAUSE_DEPEND_SINK, instead check
	OMP_CLAUSE_DOACROSS.  Use actual user name of the clause - doacross
	or depend - in diagnostics.  Diagnose mixing of stand-alone and
	block associated ordered constructs binding to the same loop.
	(lower_omp_ordered_clauses): Don't handle OMP_CLAUSE_DEPEND_SINK,
	instead handle OMP_CLAUSE_DOACROSS.
	(lower_omp_ordered): Look for OMP_CLAUSE_DOACROSS instead of
	OMP_CLAUSE_DEPEND.
	(lower_depend_clauses): Don't handle OMP_CLAUSE_DEPEND_SOURCE and
	OMP_CLAUSE_DEPEND_SINK.
	* omp-expand.cc (expand_omp_ordered_sink): Emit a sorry for
	doacross(sink:omp_cur_iteration-1).
	(expand_omp_ordered_source_sink): Use
	OMP_CLAUSE_DOACROSS_SINK_NEGATIVE instead of
	OMP_CLAUSE_DEPEND_SINK_NEGATIVE.  Use actual user name of the clause
	- doacross or depend - in diagnostics.
	(expand_omp): Look for OMP_CLAUSE_DOACROSS clause instead of
	OMP_CLAUSE_DEPEND.
	(build_omp_regions_1): Likewise.
	(omp_make_gimple_edges): Likewise.
	* lto-streamer-out.cc (hash_tree): Handle OMP_CLAUSE_DOACROSS.
	* tree-streamer-in.cc (unpack_ts_omp_clause_value_fields): Likewise.
	* tree-streamer-out.cc (pack_ts_omp_clause_value_fields): Likewise.
gcc/c-family/
	* c-pragma.h (enum pragma_omp_clause): Add PRAGMA_OMP_CLAUSE_DOACROSS.
	* c-omp.cc (c_finish_omp_depobj): Check also for OMP_CLAUSE_DOACROSS
	clause and diagnose it.  Don't handle OMP_CLAUSE_DEPEND_SOURCE and
	OMP_CLAUSE_DEPEND_SINK.  Assert kind is not OMP_CLAUSE_DEPEND_INVALID.
gcc/c/
	* c-parser.cc (c_parser_omp_clause_name): Handle doacross.
	(c_parser_omp_clause_depend_sink): Renamed to ...
	(c_parser_omp_clause_doacross_sink): ... this.  Add depend_p argument.
	Handle parsing of doacross(sink:omp_cur_iteration-1).  Use
	OMP_CLAUSE_DOACROSS_SINK_NEGATIVE instead of
	OMP_CLAUSE_DEPEND_SINK_NEGATIVE, build OMP_CLAUSE_DOACROSS instead
	of OMP_CLAUSE_DEPEND and set OMP_CLAUSE_DOACROSS_DEPEND flag on it.
	(c_parser_omp_clause_depend): Use OMP_CLAUSE_DOACROSS_SINK and
	OMP_CLAUSE_DOACROSS_SOURCE instead of OMP_CLAUSE_DEPEND_SINK and
	OMP_CLAUSE_DEPEND_SOURCE, build OMP_CLAUSE_DOACROSS for depend(source)
	and set OMP_CLAUSE_DOACROSS_DEPEND on it.
	(c_parser_omp_clause_doacross): New function.
	(c_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_DOACROSS.
	(c_parser_omp_depobj): Use OMP_CLAUSE_DEPEND_INVALID instead of
	OMP_CLAUSE_DEPEND_SOURCE.
	(c_parser_omp_for_loop): Don't diagnose here linear clause together
	with ordered with argument.
	(c_parser_omp_simd): Don't diagnose ordered clause with argument on
	for simd.
	(OMP_ORDERED_DEPEND_CLAUSE_MASK): Add PRAGMA_OMP_CLAUSE_DOACROSS.
	(c_parser_omp_ordered): Handle also doacross and adjust for it
	diagnostic wording.
	* c-typeck.cc (c_finish_omp_clauses): Handle OMP_CLAUSE_DOACROSS.
	Don't handle OMP_CLAUSE_DEPEND_SOURCE and OMP_CLAUSE_DEPEND_SINK.
gcc/cp/
	* parser.cc (cp_parser_omp_clause_name): Handle doacross.
	(cp_parser_omp_clause_depend_sink): Renamed to ...
	(cp_parser_omp_clause_doacross_sink): ... this.  Add depend_p
	argument.  Handle parsing of doacross(sink:omp_cur_iteration-1).  Use
	OMP_CLAUSE_DOACROSS_SINK_NEGATIVE instead of
	OMP_CLAUSE_DEPEND_SINK_NEGATIVE, build OMP_CLAUSE_DOACROSS instead
	of OMP_CLAUSE_DEPEND and set OMP_CLAUSE_DOACROSS_DEPEND flag on it.
	(cp_parser_omp_clause_depend): Use OMP_CLAUSE_DOACROSS_SINK and
	OMP_CLAUSE_DOACROSS_SOURCE instead of OMP_CLAUSE_DEPEND_SINK and
	OMP_CLAUSE_DEPEND_SOURCE, build OMP_CLAUSE_DOACROSS for depend(source)
	and set OMP_CLAUSE_DOACROSS_DEPEND on it.
	(cp_parser_omp_clause_doacross): New function.
	(cp_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_DOACROSS.
	(cp_parser_omp_depobj): Use OMP_CLAUSE_DEPEND_INVALID instead of
	OMP_CLAUSE_DEPEND_SOURCE.
	(cp_parser_omp_for_loop): Don't diagnose here linear clause together
	with ordered with argument.
	(cp_parser_omp_simd): Don't diagnose ordered clause with argument on
	for simd.
	(OMP_ORDERED_DEPEND_CLAUSE_MASK): Add PRAGMA_OMP_CLAUSE_DOACROSS.
	(cp_parser_omp_ordered): Handle also doacross and adjust for it
	diagnostic wording.
	* pt.cc (tsubst_omp_clause_decl): Use
	OMP_CLAUSE_DOACROSS_SINK_NEGATIVE instead of
	OMP_CLAUSE_DEPEND_SINK_NEGATIVE.
	(tsubst_omp_clauses): Handle OMP_CLAUSE_DOACROSS.
	(tsubst_expr): Use OMP_CLAUSE_DEPEND_INVALID instead of
	OMP_CLAUSE_DEPEND_SOURCE.
	* semantics.cc (cp_finish_omp_clause_depend_sink): Rename to ...
	(cp_finish_omp_clause_doacross_sink): ... this.
	(finish_omp_clauses): Handle OMP_CLAUSE_DOACROSS.  Don't handle
	OMP_CLAUSE_DEPEND_SOURCE and OMP_CLAUSE_DEPEND_SINK.
gcc/fortran/
	* trans-openmp.cc (gfc_trans_omp_clauses): Use
	OMP_CLAUSE_DOACROSS_SINK_NEGATIVE instead of
	OMP_CLAUSE_DEPEND_SINK_NEGATIVE, build OMP_CLAUSE_DOACROSS
	clause instead of OMP_CLAUSE_DEPEND and set OMP_CLAUSE_DOACROSS_DEPEND
	on it.
gcc/testsuite/
	* c-c++-common/gomp/doacross-2.c: Adjust expected diagnostics.
	* c-c++-common/gomp/doacross-5.c: New test.
	* c-c++-common/gomp/doacross-6.c: New test.
	* c-c++-common/gomp/nesting-2.c: Adjust expected diagnostics.
	* c-c++-common/gomp/ordered-3.c: Likewise.
	* c-c++-common/gomp/sink-3.c: Likewise.
	* gfortran.dg/gomp/nesting-2.f90: Likewise.

ISO C2x standardizes empty initializer braces {}.  Implement this
feature accordingly.  The basic case was already supported and so just
needed diagnostic adjustments.  However, the standard feature also
includes two cases that were not previously supported: empty
initializer braces for scalars, and empty initializer braces for
VLAs.  Thus, add support for those features as well, updating existing
tests that expected them to be diagnosed.

There was already some gimplifier support for converting
variable-sized initializations with empty CONSTRUCTORs to memset.
However, it didn't apply here; code earlier in gimplify_modify_expr
ended up calling gimplify_init_constructor via
gimplify_modify_expr_rhs, which ended up handling the CONSTRUCTOR in a
way that generated an ICE later.  Add a check for this case earlier in
gimplify_modify_expr to avoid that issue.

Bootstrapped with no regressions for x86_64-pc-linux-gnu.

gcc/
	* gimplify.cc (gimplify_modify_expr): Convert initialization from
	a variable-size CONSTRUCTOR to memset before call to
	gimplify_modify_expr_rhs.

gcc/c/
	* c-decl.cc (start_decl): Do not diagnose initialization of
	variable-sized objects here.
	* c-parser.cc (c_parser_braced_init): Add argument DECL.  All
	callers changed.
	(c_parser_initializer): Diagnose initialization of variable-sized
	objects other than with braced initializer.
	(c_parser_braced_init): Use pedwarn_c11 for empty initializer
	braces and update diagnostic text.  Diagnose initialization of
	variable-sized objects with nonempty braces.
	* c-typeck.cc (digest_init): Update diagnostic for initialization
	of variable-sized objects.
	(really_start_incremental_init, set_designator)
	(process_init_element): Update comments.
	(pop_init_level): Allow scalar empty initializers.

gcc/testsuite/
	* gcc.dg/c11-empty-init-1.c, gcc.dg/c11-empty-init-2.c,
	gcc.dg/c11-empty-init-3.c, gcc.dg/c2x-empty-init-1.c,
	gcc.dg/c2x-empty-init-2.c, gcc.dg/c2x-empty-init-3.c,
	gcc.dg/gnu2x-empty-init-1.c, gcc.dg/gnu2x-empty-init-2.c: New
	tests.
	* gcc.dg/torture/dfp-default-init-1.c: Also test empty
	initializers.
	* gcc.dg/init-bad-1.c, gcc.dg/noncompile/pr71583.c,
	gcc.dg/pr61096-1.c, gcc.dg/vla-init-2.c, gcc.dg/vla-init-3.c,
	gcc.target/i386/sse2-bfloat16-scalar-typecheck.c: Update expected
	diagnostics.
	* gcc.dg/ubsan/c-shift-1.c: Use nonempty initializers for VLA
	initializations expected to be diagnosed.

As this is the last lang-specific user of the omp_mappable_type hook,
the hook is removed, keeping only a generic omp_mappable_type for
incomplete types (or error_node).

	PR c++/104493

gcc/c/ChangeLog:

	* c-decl.cc (c_decl_attributes, finish_decl): Call omp_mappable_type
	instead of removed langhook.
	* c-typeck.cc (c_finish_omp_clauses): Likewise.

gcc/cp/ChangeLog:

	* cp-objcp-common.h (LANG_HOOKS_OMP_MAPPABLE_TYPE): Remove.
	* cp-tree.h (cp_omp_mappable_type, cp_omp_emit_unmappable_type_notes):
	Remove.
	* decl2.cc (cp_omp_mappable_type_1, cp_omp_mappable_type,
	cp_omp_emit_unmappable_type_notes): Remove.
	(cplus_decl_attributes): Call omp_mappable_type instead of
	removed langhook.
	* decl.cc (cp_finish_decl): Likewise; call cxx_incomplete_type_inform
	in lieu of cp_omp_emit_unmappable_type_notes.
	* semantics.cc (finish_omp_clauses): Likewise.

gcc/ChangeLog:

	* gimplify.cc (omp_notice_variable): Call omp_mappable_type
	instead of removed langhook.
	* omp-general.h (omp_mappable_type): New prototype.
	* omp-general.cc (omp_mappable_type):  New; moved from ...
	* langhooks.cc (lhd_omp_mappable_type): ... here.
	* langhooks-def.h (lhd_omp_mappable_type,
	LANG_HOOKS_OMP_MAPPABLE_TYPE): Remove.
	(LANG_HOOKS_FOR_TYPES_INITIALIZER): Remote the latter.
	* langhooks.h (struct lang_hooks_for_types): Remove
	omp_mappable_type.

gcc/testsuite/ChangeLog:

	* g++.dg/gomp/unmappable-1.C: Remove dg-error; remove dg-note no
	longer shown as TYPE_MAIN_DECL is NULL.
	* c-c++-common/gomp/map-incomplete-type.c: New test.

Co-authored-by: Chung-Lin Tang <cltang@codesourcery.com>

For compound literals empty struct stores are not removed as they go down a
different path of the gimplifier; trying to optimize the init constructor.
This fixes the problem by not adding the gimple assignment at the end
of gimplify_init_constructor if it was an empty type.

Note this updates gcc.dg/pr87052.c where we had:
const char d[0] = { };
And was expecting a store to d but after this, there is no store
as the decl's type is zero in size.

OK? Bootstrapped and tested on x86_64-linux-gnu with no regressions.

gcc/ChangeLog:

	PR middle-end/103645
	* gimplify.cc (gimplify_init_constructor): Don't build/add
	gimple assignment of an empty type.

gcc/testsuite/ChangeLog:
	* gcc.dg/pr87052.c: Update d var to expect nothing.

This happens from prepare_gimple_addressable for the variable to be marked
with DECL_NOT_GIMPLE_REG_P when its initialization is gimplified, so it's
apparently just a matter of setting the flag earlier.

gcc/
	* gimplify.cc (lookup_tmp_var): Add NOT_GIMPLE_REG boolean parameter
	and set DECL_NOT_GIMPLE_REG_P on the variable according to it.
	(internal_get_tmp_var): Add NOT_GIMPLE_REG boolean parameter and
	pass it in the call to lookup_tmp_var.
	(get_formal_tmp_var): Pass false in the call to lookup_tmp_var.
	(get_initialized_tmp_var): Likewise.
	(prepare_gimple_addressable): Call internal_get_tmp_var instead of
	get_initialized_tmp_var with NOT_GIMPLE_REG set to true.

gcc/testsuite/
	* gnat.dg/opt98.ads, gnat.dg/opt98.adb: New test.

The goal is to make it possible to use it in (large) production binaries
to do function-level coverage, so the overhead must be minimum and, in
particular, there is no protection against data races so the "once"
moniker is imprecise.

gcc/
	* common.opt (finstrument-functions): Set explicit value.
	(-finstrument-functions-once): New option.
	* doc/invoke.texi (Program Instrumentation Options): Document it.
	* gimplify.cc (build_instrumentation_call): New static function.
	(gimplify_function_tree): Call it to emit the instrumentation calls
	if -finstrument-functions[-once] is specified.
gcc/testsuite/
	* gcc.dg/instrument-4.c: New test.

This patch adds support for (so far C/C++)
  #pragma omp taskwait nowait depend(...)
directive, which is like
  #pragma omp task depend(...)
  ;
but slightly optimized on the library side, so that it creates
the task only for the purpose of dependency tracking and doesn't actually
schedule it and wait for it when the dependencies are satisfied, instead
makes its dependencies satisfied right away.

2022-05-24  Jakub Jelinek  <jakub@redhat.com>

	PR c/105378
gcc/
	* omp-builtins.def (BUILT_IN_GOMP_TASKWAIT_DEPEND_NOWAIT): New
	builtin.
	* gimplify.cc (gimplify_omp_task): Diagnose taskwait with nowait
	clause but no depend clauses.
	* omp-expand.cc (expand_taskwait_call): Use
	BUILT_IN_GOMP_TASKWAIT_DEPEND_NOWAIT rather than
	BUILT_IN_GOMP_TASKWAIT_DEPEND if nowait clause is present.
gcc/c/
	* c-parser.cc (OMP_TASKWAIT_CLAUSE_MASK): Add nowait clause.
gcc/cp/
	* parser.cc (OMP_TASKWAIT_CLAUSE_MASK): Add nowait clause.
gcc/testsuite/
	* c-c++-common/gomp/taskwait-depend-nowait-1.c: New test.
libgomp/
	* libgomp_g.h (GOMP_taskwait_depend_nowait): Declare.
	* libgomp.map (GOMP_taskwait_depend_nowait): Export at GOMP_5.1.1.
	* task.c (empty_task): New function.
	(gomp_task_run_post_handle_depend_hash): Declare earlier.
	(gomp_task_run_post_handle_depend): Declare.
	(GOMP_task): Optimize fn == empty_task if there is nothing to wait
	for.
	(gomp_task_run_post_handle_dependers): Optimize task->fn == empty_task.
	(GOMP_taskwait_depend_nowait): New function.
	* testsuite/libgomp.c-c++-common/taskwait-depend-nowait-1.c: New test.

This removes is_gimple_condexpr, note the vectorizer via patterns
still creates COND_EXPRs with embedded GENERIC conditions and has
a reference to the function in comments.  Otherwise is_gimple_condexpr
is now equal to is_gimple_val.

2022-05-16  Richard Biener  <rguenther@suse.de>

	* gimple-expr.cc (is_gimple_condexpr): Remove.
	* gimple-expr.h (is_gimple_condexpr): Likewise.
	* gimplify.cc (gimplify_expr): Remove is_gimple_condexpr usage.
	* tree-if-conv.cc (set_bb_predicate): Likewie.
	(add_to_predicate_list): Likewise.
	(gen_phi_arg_condition): Likewise.
	(predicate_scalar_phi): Likewise.
	(predicate_statements): Likewise.

This goes away with the selection operand allowed to be a GENERIC
tcc_comparison tree.  It keeps those for vectorizer pattern recog,
those are short lived and removing this instance is a bigger task.

The patch doesn't yet remove dead code and functionality, that's
left for a followup.  Instead the patch makes sure to produce
valid GIMPLE IL and continue to optimize COND_EXPRs where the
previous IL allowed and the new IL showed regressions in the testsuite.

2022-05-16  Richard Biener  <rguenther@suse.de>

	* gimple-expr.cc (is_gimple_condexpr): Equate to is_gimple_val.
	* gimplify.cc (gimplify_pure_cond_expr): Gimplify the condition
	as is_gimple_val.
	* gimple-fold.cc (valid_gimple_rhs_p): Simplify.
	* tree-cfg.cc (verify_gimple_assign_ternary): Likewise.
	* gimple-loop-interchange.cc (loop_cand::undo_simple_reduction):
	Build the condition of the COND_EXPR separately.
	* tree-ssa-loop-im.cc (move_computations_worker): Likewise.
	* tree-vect-generic.cc (expand_vector_condition): Likewise.
	* tree-vect-loop.cc (vect_create_epilog_for_reduction):
	Likewise.
	* vr-values.cc (simplify_using_ranges::simplify): Likewise.
	* tree-vect-patterns.cc: Add comment indicating we are
	building invalid COND_EXPRs and why.
	* omp-expand.cc (expand_omp_simd): Gimplify the condition
	to the COND_EXPR separately.
	(expand_omp_atomic_cas): Note part that should be unreachable
	now.
	* tree-ssa-forwprop.cc (forward_propagate_into_cond): Adjust
	condition for valid replacements.
	* tree-if-conv.cc (predicate_bbs): Simulate previous
	re-folding of the condition in folded COND_EXPRs which
	is necessary because of unfolded GIMPLE_CONDs in the IL
	as in for example gcc.dg/fold-bopcond-1.c.
	* gimple-range-gori.cc (gori_compute::condexpr_adjust):
	Handle that the comparison is now in the def stmt of
	the select operand.  Required by gcc.dg/pr104526.c.

	* gcc.dg/gimplefe-27.c: Adjust.
	* gcc.dg/gimplefe-45.c: Likewise.
	* gcc.dg/pr101145-2.c: Likewise.
	* gcc.dg/pr98211.c: Likewise.
	* gcc.dg/torture/pr89595.c: Likewise.
	* gcc.dg/tree-ssa/divide-7.c: Likewise.
	* gcc.dg/tree-ssa/ssa-lim-12.c: Likewise.

This patch adds support for inoutset depend-kind in depend
clauses.  It is very similar to the in depend-kind in that
a task with a dependency with that depend-kind is dependent
on all previously created sibling tasks with matching address
unless they have the same depend-kind.
In the in depend-kind case everything is dependent except
for in -> in dependency, for inoutset everything is
dependent except for inoutset -> inoutset dependency.
mutexinoutset is also similar (everything is dependent except
for mutexinoutset -> mutexinoutset dependency), but there is
also the additional restriction that only one task with
mutexinoutset for each address can be scheduled at once (i.e.
mutual exclusitivty).  For now we support mutexinoutset
the same as inout/out, but the inoutset support is full.

In order not to bump the ABI for dependencies each time
(we've bumped it already once, the old ABI supports only
inout/out and in depend-kind, the new ABI supports
inout/out, mutexinoutset, in and depobj), this patch arranges
for inoutset to be at least for the time being always handled
as if it was specified through depobj even when it is not.
So it uses the new ABI for that and inoutset are represented
like depobj - pointer to a pair of pointers where the first one
will be the actual address of the object mentioned in depend
clause and second pointer will be (void *) GOMP_DEPEND_INOUTSET.

2022-05-17  Jakub Jelinek  <jakub@redhat.com>

gcc/
	* tree-core.h (enum omp_clause_depend_kind): Add
	OMP_CLAUSE_DEPEND_INOUTSET.
	* tree-pretty-print.cc (dump_omp_clause): Handle
	OMP_CLAUSE_DEPEND_INOUTSET.
	* gimplify.cc (gimplify_omp_depend): Likewise.
	* omp-low.cc (lower_depend_clauses): Likewise.
gcc/c-family/
	* c-omp.cc (c_finish_omp_depobj): Handle
	OMP_CLAUSE_DEPEND_INOUTSET.
gcc/c/
	* c-parser.cc (c_parser_omp_clause_depend): Parse
	inoutset depend-kind.
	(c_parser_omp_depobj): Likewise.
gcc/cp/
	* parser.cc (cp_parser_omp_clause_depend): Parse
	inoutset depend-kind.
	(cp_parser_omp_depobj): Likewise.
	* cxx-pretty-print.cc (cxx_pretty_printer::statement): Handle
	OMP_CLAUSE_DEPEND_INOUTSET.
gcc/testsuite/
	* c-c++-common/gomp/all-memory-1.c (boo): Add test with
	inoutset depend-kind.
	* c-c++-common/gomp/all-memory-2.c (boo): Likewise.
	* c-c++-common/gomp/depobj-1.c (f1): Likewise.
	(f2): Adjusted expected diagnostics.
	* g++.dg/gomp/depobj-1.C (f4): Adjust expected diagnostics.
include/
	* gomp-constants.h (GOMP_DEPEND_INOUTSET): Define.
libgomp/
	* libgomp.h (struct gomp_task_depend_entry): Change is_in type
	from bool to unsigned char.
	* task.c (gomp_task_handle_depend): Handle GOMP_DEPEND_INOUTSET.
	Ignore dependencies where
	task->depend[i].is_in && task->depend[i].is_in == ent->is_in
	rather than just task->depend[i].is_in && ent->is_in.  Remember
	whether GOMP_DEPEND_IN loop is needed and guard the loop with that
	conditional.
	(gomp_task_maybe_wait_for_dependencies): Handle GOMP_DEPEND_INOUTSET.
	Ignore dependencies where elem.is_in && elem.is_in == ent->is_in
	rather than just elem.is_in && ent->is_in.
	* testsuite/libgomp.c-c++-common/depend-1.c (test): Add task with
	inoutset depend-kind.
	* testsuite/libgomp.c-c++-common/depend-2.c (test): Likewise.
	* testsuite/libgomp.c-c++-common/depend-3.c (test): Likewise.
	* testsuite/libgomp.c-c++-common/depend-inoutset-1.c: New test.

The following makes the main gimple_build API take a
gimple_stmt_iterator, whether to insert before or after and
an iterator update argument to make it more convenient to use
in certain situations (see the tree-vect-generic.cc hunks for
an example).  It also makes the case we insert into the IL
somewhat distinct from inserting into a standalone sequence in
that it simplifies built expressions the same way as inserting
and calling fold_stmt (..., follow_all_ssa_edges) would.  When
inserting into a standalone sequence we restrict simplification
to defs within the currently building sequence.

The patch only amends the tree_code gimple_build API, I will
followup with converting the rest as well.  The patch got larger
than intended because the template forwarders now use gsi_last
which introduces a dependency on gimple-iterator.h requiring
mass #include re-org across the tree.  There are two frontend
specific files including gimple-fold.h just for some padding
clearing stuff - I've removed the include and instead moved
the declarations to fold-const.h (but not the implementations).
Otherwise I'd have to include half of the middle-end headers in
those files which I didn't much like.

2022-05-12  Richard Biener  <rguenther@suse.de>

gcc/cp/
	* constexpr.cc: Remove gimple-fold.h include.

gcc/c-family/
	* c-omp.cc: Remove gimple-fold.h include.

gcc/analyzer/
	* supergraph.cc: Re-order gimple-fold.h include.

gcc/
	* gimple-fold.cc (gimple_build): Adjust for new
	main API.
	* gimple-fold.h (gimple_build): New main APIs with
	iterator, insert direction and iterator update.
	(gimple_build): New forwarder template.
	(clear_padding_type_may_have_padding_p): Remove.
	(clear_type_padding_in_mask): Likewise.
	(arith_overflowed_p): Likewise.
	* fold-const.h (clear_padding_type_may_have_padding_p): Declare.
	(clear_type_padding_in_mask): Likewise.
	(arith_overflowed_p): Likewise.
	* tree-vect-generic.cc (gimplify_build3): Use main gimple_build API.
	(gimplify_build2): Likewise.
	(gimplify_build1): Likewise.
	* ubsan.cc (ubsan_expand_ptr_ifn): Likewise, avoid extra
	compare stmt.
	* gengtype.cc (open_base_files): Re-order includes.
	* builtins.cc: Re-order gimple-fold.h include.
	* calls.cc: Likewise.
	* cgraphbuild.cc: Likewise.
	* cgraphunit.cc: Likewise.
	* config/rs6000/rs6000-builtin.cc: Likewise.
	* config/rs6000/rs6000-call.cc: Likewise.
	* config/rs6000/rs6000.cc: Likewise.
	* config/s390/s390.cc: Likewise.
	* expr.cc: Likewise.
	* fold-const.cc: Likewise.
	* function-tests.cc: Likewise.
	* gimple-match-head.cc: Likewise.
	* gimple-range-fold.cc: Likewise.
	* gimple-ssa-evrp-analyze.cc: Likewise.
	* gimple-ssa-evrp.cc: Likewise.
	* gimple-ssa-sprintf.cc: Likewise.
	* gimple-ssa-warn-access.cc: Likewise.
	* gimplify.cc: Likewise.
	* graphite-isl-ast-to-gimple.cc: Likewise.
	* ipa-cp.cc: Likewise.
	* ipa-devirt.cc: Likewise.
	* ipa-prop.cc: Likewise.
	* omp-low.cc: Likewise.
	* pointer-query.cc: Likewise.
	* range-op.cc: Likewise.
	* tree-cfg.cc: Likewise.
	* tree-if-conv.cc: Likewise.
	* tree-inline.cc: Likewise.
	* tree-object-size.cc: Likewise.
	* tree-ssa-ccp.cc: Likewise.
	* tree-ssa-dom.cc: Likewise.
	* tree-ssa-forwprop.cc: Likewise.
	* tree-ssa-ifcombine.cc: Likewise.
	* tree-ssa-loop-ivcanon.cc: Likewise.
	* tree-ssa-math-opts.cc: Likewise.
	* tree-ssa-pre.cc: Likewise.
	* tree-ssa-propagate.cc: Likewise.
	* tree-ssa-reassoc.cc: Likewise.
	* tree-ssa-sccvn.cc: Likewise.
	* tree-ssa-strlen.cc: Likewise.
	* tree-ssa.cc: Likewise.
	* value-pointer-equiv.cc: Likewise.
	* vr-values.cc: Likewise.

gcc/testsuite/
	* gcc.dg/plugin/diagnostic_group_plugin.c: Reorder or remove
	gimple-fold.h include.
	* gcc.dg/plugin/diagnostic_plugin_show_trees.c:
	Likewise.
	* gcc.dg/plugin/diagnostic_plugin_test_inlining.c:
	Likewise.
	* gcc.dg/plugin/diagnostic_plugin_test_metadata.c:
	Likewise.
	* gcc.dg/plugin/diagnostic_plugin_test_paths.c:
	Likewise.
	* gcc.dg/plugin/diagnostic_plugin_test_show_locus.c:
	Likewise.
	* gcc.dg/plugin/diagnostic_plugin_test_string_literals.c: Likewise.
	* gcc.dg/plugin/diagnostic_plugin_test_tree_expression_range.c:
	Likewise.
	* gcc.dg/plugin/finish_unit_plugin.c: Likewise.
	* gcc.dg/plugin/ggcplug.c: Likewise.
	* gcc.dg/plugin/must_tail_call_plugin.c: Likewise.
	* gcc.dg/plugin/one_time_plugin.c: Likewise.
	* gcc.dg/plugin/selfassign.c: Likewise.
	* gcc.dg/plugin/start_unit_plugin.c: Likewise.
	* g++.dg/plugin/selfassign.c: Likewise.

The ugly part is that OpenMP 5.1 made omp_all_memory a reserved identifier
which isn't allowed to be used anywhere but in the depend clause, this is
against how everything else has been handled in OpenMP so far (where
some identifiers could have special meaning in some OpenMP clauses or
pragmas but not elsewhere).
The patch handles it by making it a conditional keyword (for -fopenmp
only) and emitting a better diagnostics when it is used in a primary
expression.  Having a nicer diagnostics when e.g. trying to do
int omp_all_memory;
or
int *omp_all_memory[10];
etc. would mean changing too many spots and hooking into name lookups
to reject declaring any such symbols would be too ugly and I'm afraid
there are way too many spots where one can introduce a name
(variables, functions, namespaces, struct, enum, enumerators, template
arguments, ...).

Otherwise, the handling is quite simple, normal depend clauses lower
into addresses of variables being handed over to the library, for
omp_all_memory I'm using NULL pointers.  omp_all_memory can only be
used with inout or out depend kinds and means that a task is dependent
on all previously created sibling tasks that have any dependency (of
any depend kind) and that any later created sibling tasks will be
dependent on it if they have any dependency.

2022-05-12  Jakub Jelinek  <jakub@redhat.com>

gcc/
	* gimplify.cc (gimplify_omp_depend): Don't build_fold_addr_expr
	if null_pointer_node.
	(gimplify_scan_omp_clauses): Likewise.
	* tree-pretty-print.cc (dump_omp_clause): Print null_pointer_node
	as omp_all_memory.
gcc/c-family/
	* c-common.h (enum rid): Add RID_OMP_ALL_MEMORY.
	* c-omp.cc (c_finish_omp_depobj): Don't build_fold_addr_expr
	if null_pointer_node.
gcc/c/
	* c-parser.cc (c_parse_init): Register omp_all_memory as keyword
	if flag_openmp.
	(c_parser_postfix_expression): Diagnose uses of omp_all_memory
	in postfix expressions.
	(c_parser_omp_variable_list): Handle omp_all_memory in depend
	clause.
	* c-typeck.cc (c_finish_omp_clauses): Handle omp_all_memory
	keyword in depend clause as null_pointer_node, diagnose invalid
	uses.
gcc/cp/
	* lex.cc (init_reswords): Register omp_all_memory as keyword
	if flag_openmp.
	* parser.cc (cp_parser_primary_expression): Diagnose uses of
	omp_all_memory in postfix expressions.
	(cp_parser_omp_var_list_no_open): Handle omp_all_memory in depend
	clause.
	* semantics.cc (finish_omp_clauses): Handle omp_all_memory
	keyword in depend clause as null_pointer_node, diagnose invalid
	uses.
	* pt.cc (tsubst_omp_clause_decl): Pass through omp_all_memory.
gcc/testsuite/
	* c-c++-common/gomp/all-memory-1.c: New test.
	* c-c++-common/gomp/all-memory-2.c: New test.
	* c-c++-common/gomp/all-memory-3.c: New test.
	* g++.dg/gomp/all-memory-1.C: New test.
	* g++.dg/gomp/all-memory-2.C: New test.
libgomp/
	* libgomp.h (struct gomp_task): Add depend_all_memory member.
	* task.c (gomp_init_task): Initialize depend_all_memory.
	(gomp_task_handle_depend): Handle omp_all_memory.
	(gomp_task_run_post_handle_depend_hash): Clear
	parent->depend_all_memory if equal to current task.
	(gomp_task_maybe_wait_for_dependencies): Handle omp_all_memory.
	* testsuite/libgomp.c-c++-common/depend-1.c: New test.
	* testsuite/libgomp.c-c++-common/depend-2.c: New test.
	* testsuite/libgomp.c-c++-common/depend-3.c: New test.

This patch adds support for OMP 5.1 "canonical loop nest form" to the
Fortran front end, marks non-rectangular loops for processing
by the middle end, and implements missing checks in the gimplifier
for additional prohibitions on non-rectangular loops.

Note that the OMP spec also prohibits non-rectangular loops with the TILE
construct; that construct hasn't been implemented yet, so that error will
need to be filled in later.

	gcc/fortran/
	* gfortran.h (struct gfc_omp_clauses): Add non_rectangular bit.
	* openmp.cc (is_outer_iteration_variable): New function.
	(expr_is_invariant): New function.
	(bound_expr_is_canonical): New function.
	(resolve_omp_do): Replace existing non-rectangularity error with
	check for canonical form and setting non_rectangular bit.
	* trans-openmp.cc (gfc_trans_omp_do): Transfer non_rectangular
	flag to generated tree structure.

	gcc/
	* gimplify.cc (gimplify_omp_for): Update messages for SCHEDULED
	and ORDERED clause conflict errors.  Add check for GRAINSIZE and
	NUM_TASKS on TASKLOOP.

	gcc/testsuite/
	* c-c++-common/gomp/loop-6.c (f3): New function to test TASKLOOP
	diagnostics.
	* gfortran.dg/gomp/collapse1.f90: Update expected messages.
	* gfortran.dg/gomp/pr85313.f90: Remove dg-error on non-rectangular
	loops that are now accepted.
	* gfortran.dg/gomp/non-rectangular-loop.f90: New file.
	* gfortran.dg/gomp/canonical-loop-1.f90: New file.
	* gfortran.dg/gomp/canonical-loop-2.f90: New file.

In PR105049 we had

  return VIEW_CONVERT_EXPR<U>( VEC_PERM_EXPR < {<<< Unknown tree: compound_literal_expr
        V D.1984 = { 0 }; >>>, { 0 }} , {<<< Unknown tree: compound_literal_expr
        V D.1985 = { 0 }; >>>, { 0 }} , { 0, 0 } >  & {(short int) SAVE_EXPR <c>, (short int) SAVE_EXPR <c>});

where we gimplify the init CTORs to

  _1 = {{ 0 }, { 0 }};
  _2 = {{ 0 }, { 0 }};

instead of to vector constants.  The following makes sure to simplify the
CTORs to VECTOR_CSTs during gimplification by re-ordering the simplification
to after CTOR flag recomputation and gimplification of the elements.

2022-03-25  Richard Biener  <rguenther@suse.de>

	* gimplify.cc (gimplify_init_constructor): First gimplify,
	then simplify the result to a VECTOR_CST.

This patch fixes a wrong -Wimplicit-fallthrough warning for

    case 0:
      if (1)  // wrong may fallthrough
	return 0;
    case 1:

which in .gimple looks like

    <D.1981>: // case 0
    if (1 != 0) goto <D.1985>; else goto <D.1986>;
    <D.1985>:
    D.1987 = 0;
    // predicted unlikely by early return (on trees) predictor.
    return D.1987;
    <D.1986>:  // dead
    <D.1982>: // case 1

and the warning thinks that <D.1986>: falls through to <D.1982>:.  It
does not know that <D.1986> is effectively a dead label, only reachable
through fallthrough from previous instructions, never jumped to.  To
that effect, Jakub introduced UNUSED_LABEL_P, which is set on such dead
labels.

collect_fallthrough_labels has code to deal with cases like

    case 2:
      if (e != 10)
	i++; // this may fallthru, warn
      else
	return 44;
    case 3:

which collects labels that may fall through.  Here it sees the "goto <D.1990>;"
at the end of the then branch and so when the warning reaches

    ...
    <D.1990>: // from if-then
    <D.1984>: // case 3

it knows it should warn about the possible fallthrough.  But an UNUSED_LABEL_P
is not a label that can fallthrough like that, so it should ignore those.

However, we still want to warn about this:

    case 0:
      if (1)
	n++; // falls through
    case 1:

so collect_fallthrough_labels needs to return the "n = n + 1;" statement, rather
than the dead label.

Co-authored-by: Jakub Jelinek <jakub@redhat.com>

	PR middle-end/103597

gcc/ChangeLog:

	* gimplify.cc (collect_fallthrough_labels): Don't push UNUSED_LABEL_Ps
	into labels.  Maybe set prev to the statement preceding UNUSED_LABEL_P.
	(gimplify_cond_expr): Set UNUSED_LABEL_P.
	* tree.h (UNUSED_LABEL_P): New.

gcc/testsuite/ChangeLog:

	* c-c++-common/Wimplicit-fallthrough-39.c: New test.

I accidentally committed an outdated version of patch "[openmp] Set location
for taskloop stmts".

Fix this by adding the missing changes.

gcc/ChangeLog:

2022-03-18  Tom de Vries  <tdevries@suse.de>

	* gimplify.cc (gimplify_omp_for): Set location using 'input_location'.
	Set gfor location only when dealing with a OMP_TASKLOOP.

The test-case included in this patch contains:
...
  #pragma omp taskloop simd shared(a) lastprivate(myId)
...

This is translated to 3 taskloop statements in gimple, visible with
-fdump-tree-gimple:
...
  #pragma omp taskloop private(D.2124)
    #pragma omp taskloop shared(a) shared(myId) private(i.0) firstprivate(a_h)
      #pragma omp taskloop lastprivate(myId)
...

But when exposing the gimple statement locations using
-fdump-tree-gimple-lineno, we find that only the first one has location
information.

Fix this by adding the missing location information.

Tested gomp.exp on x86_64.

Tested libgomp testsuite on x86_64 with nvptx accelerator.

gcc/ChangeLog:

2022-03-18  Tom de Vries  <tdevries@suse.de>

	* gimplify.cc (gimplify_omp_for): Set taskloop location.

gcc/testsuite/ChangeLog:

2022-03-18  Tom de Vries  <tdevries@suse.de>

	* c-c++-common/gomp/pr104968.c: New test.

As mentioned in the PR, we emit a bogus uninitialized warning but
easily could emit wrong-code for it or similar testcases too.
The bug is that we emit clobber for a TARGET_EXPR_SLOT too early:
          D.2499.e = B::qux (&h); [return slot optimization]
          D.2516 = 1;
          try
            {
              B::B (&D.2498, &h);
              try
                {
                  _2 = baz (&D.2498);
                  D.2499.f = _2;
                  D.2516 = 0;
                  try
                    {
                      try
                        {
                          bar (&D.2499);
                        }
                      finally
                        {
                          C::~C (&D.2499);
                        }
                    }
                  finally
                    {
                      D.2499 = {CLOBBER(eol)};
                    }
                }
              finally
                {
                  D.2498 = {CLOBBER(eol)};
                }
            }
          catch
            {
              if (D.2516 != 0) goto <D.2517>; else goto <D.2518>;
              <D.2517>:
              A::~A (&D.2499.e);
              goto <D.2519>;
              <D.2518>:
              <D.2519>:
            }
The CLOBBER for D.2499 is essentially only emitted on the non-exceptional
path, if B::B or baz throws, then there is no CLOBBER for it but there
is a conditional destructor A::~A (&D.2499.e).  Now, ehcleanup1
sink_clobbers optimization assumes that clobbers in the EH cases are
emitted after last use and so sinks the D.2499 = {CLOBBER(eol)}; later,
so we then have
  # _3 = PHI <1(3), 0(9)>
<L2>:
  D.2499 ={v} {CLOBBER(eol)};
  D.2498 ={v} {CLOBBER(eol)};
  if (_3 != 0)
    goto <bb 11>; [INV]
  else
    goto <bb 15>; [INV]

  <bb 11> :
  _35 = D.2499.a;
  if (&D.2499.b != _35)
where that _35 = D.2499.a comes from inline expansion of the A::~A dtor,
and that is a load from a clobbered memory.

Now, what the gimplifier sees in this case is a CLEANUP_POINT_EXPR with
somewhere inside of it a TARGET_EXPR for D.2499 (with the C::~C (&D.2499)
cleanup) which in its TARGET_EXPR_INITIAL has another TARGET_EXPR for
D.2516 bool flag which has CLEANUP_EH_ONLY which performs that conditional
A::~A (&D.2499.e) call.
The following patch ensures that CLOBBERs (and asan poisoning) are emitted
after even those gimple_push_cleanup pushed cleanups from within the
TARGET_EXPR_INITIAL gimplification (i.e. the last point where the slot could
be in theory used).  In my first version of the patch I've done it by just
moving the
      /* Add a clobber for the temporary going out of scope, like
         gimplify_bind_expr.  */
      if (gimplify_ctxp->in_cleanup_point_expr
          && needs_to_live_in_memory (temp))
        {
...
        }
block earlier in gimplify_target_expr, but that regressed a couple of tests
where temp is marked TREE_ADDRESSABLE only during (well, very early during
that) the gimplification of TARGET_EXPR_INITIAL, so we didn't emit e.g. on
pr80032.C or stack2.C tests any clobbers for the slots and thus stack slot
reuse wasn't performed.
So that we don't regress those tests, this patch gimplifies
TARGET_EXPR_INITIAL as before, but doesn't emit it directly into pre_p,
emits it into a temporary sequence.  Then emits the CLOBBER cleanup
into pre_p, then asan poisoning if needed, then appends the
TARGET_EXPR_INITIAL temporary sequence and finally adds TARGET_EXPR_CLEANUP
gimple_push_cleanup.  The earlier a GIMPLE_WCE appears in the sequence, the
outer try/finally or try/catch it is.
So, with this patch the part of the testcase in gimple dump cited above
looks instead like:
          try
            {
              D.2499.e = B::qux (&h); [return slot optimization]
              D.2516 = 1;
              try
                {
                  try
                    {
                      B::B (&D.2498, &h);
                      _2 = baz (&D.2498);
                      D.2499.f = _2;
                      D.2516 = 0;
                      try
                        {
                          bar (&D.2499);
                        }
                      finally
                        {
                          C::~C (&D.2499);
                        }
                    }
                  finally
                    {
                      D.2498 = {CLOBBER(eol)};
                    }
                }
              catch
                {
                  if (D.2516 != 0) goto <D.2517>; else goto <D.2518>;
                  <D.2517>:
                  A::~A (&D.2499.e);
                  goto <D.2519>;
                  <D.2518>:
                  <D.2519>:
                }
            }
          finally
            {
              D.2499 = {CLOBBER(eol)};
            }

2022-03-17  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/103984
	* gimplify.cc (gimplify_target_expr): Gimplify type sizes and
	TARGET_EXPR_INITIAL into a temporary sequence, then push clobbers
	and asan unpoisioning, then append the temporary sequence and
	finally the TARGET_EXPR_CLEANUP clobbers.

	* g++.dg/opt/pr103984.C: New test.

The following testcase regressed when SRA started punting on stores to
TREE_READONLY vars.  We document that:
"In a VAR_DECL, PARM_DECL or FIELD_DECL, or any kind of ..._REF node,
nonzero means it may not be the lhs of an assignment."
so the SRA change looks desirable.  On the other side, at least in this
testcase the TREE_READONLY is set there intentionally from the
PR85873 fix, because gimplify_init_constructor itself uses TREE_READONLY
on the object to determine if it can perform promotion to static const
or not.

So, similarly to other spots in the gimplifier where we also clear
TREE_READONLY when we emit IL that stores into the object, this
does the same in gimplify_init_constructor, but in the way so that
the TREE_READONLY test for the promotion to static const keeps working
and doesn't change anything for notify_temp_creation mode, which doesn't
emit any IL, just tests if it would need a temporary or not.

This keeps PR85873 testcase working as before and fixes this regression.

2022-03-04  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/104529
	* gimplify.cc (gimplify_init_constructor): Clear TREE_READONLY
	on automatic objects which will be runtime initialized.

	* g++.dg/tree-ssa/pr104529.C: New test.

When offloading to nvptx is enabled, scan_omp_simd duplicates the simd
region including its clauses and body using inliner's
copy_gimple_seq_and_replace_locals.  That works nicely for decls, remaps
only those that are seen in the nested bind expr vars (i.e. local variables)
and doesn't remap other vars.  But for SSA_NAMEs it remaps them always, doesn't
know if their def stmt is outside of the simd (then it better shouldn't be remapped)
or inside of it (then it should) and without cfg/dominators that is pretty hard
to figure out (well, we could walk the region twice, once note SSA_NAMEs defined
by each stmt seen there and once do the remapping of only those visited SSA_NAMEs).

This patch uses a simpler way, disables temporarily into_ssa for the clauses and
body of each simd region; we already disable into_ssa e.g. in parallel/target/task
etc. regions through push_gimplify_context () but for simd we don't push
any gimplification context and appart from into_ssa I think we don't need it.

2022-03-03  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/104757
	* gimplify.cc (gimplify_omp_loop): Call gimplify_expr rather than
	gimplify_omp_for.
	(gimplify_expr) <case OMP_SIMD>: Temporarily disable
	gimplify_ctxp->into_ssa around call to gimplify_omp_for.

	* gfortran.dg/gomp/pr104757.f90: New test.
	* gcc.dg/gomp/pr104757.c: New test.

At the same time, adding -Wtrivial-auto-var-init and update documentation.
 -Wtrivial-auto-var-init and update documentation.

for the following testing case:
1 int g(int *);
2 int f1()
3 {
4     switch (0) {
5         int x;
6         default:
7         return g(&x);
8     }
9 }
compiling with -O -ftrivial-auto-var-init causes spurious warning:
warning: statement will never be executed [-Wswitch-unreachable]
5 |         int x;
  |             ^
This is due to the compiler-generated initialization at the point of
the declaration.

We could avoid the warning  to exclude the following cases:

when
flag_auto_var_init > AUTO_INIT_UNINITIALIZED
And
1) call to .DEFERRED_INIT
2) call to __builtin_clear_padding if the 2nd argument is present and non-zero
3) a gimple assign store right after the .DEFERRED_INIT call that has the LHS
   as RHS

However, we still need to warn users about the incapability of the option
-ftrivial-auto-var-init by adding a new warning option -Wtrivial-auto-var-init
to report cases when it cannot initialize the auto variable. At the same
time, update documentation for -ftrivial-auto-var-init to connect it with
the new warning option -Wtrivial-auto-var-init,  and add documentation
for -Wtrivial-auto-var-init.

gcc/ChangeLog:

	PR middle-end/102276
	* common.opt (-Wtrivial-auto-var-init): New option.
	* doc/invoke.texi (-Wtrivial-auto-var-init): Document new option.
	(-ftrivial-auto-var-init): Update option;
	* gimplify.cc (emit_warn_switch_unreachable): New function.
	(warn_switch_unreachable_r): Rename to ...
	(warn_switch_unreachable_and_auto_init_r): This.
	(maybe_warn_switch_unreachable): Rename to ...
	(maybe_warn_switch_unreachable_and_auto_init): This.
	(gimplify_switch_expr): Update calls to renamed function.

gcc/testsuite/ChangeLog:

	PR middle-end/102276
	* gcc.dg/auto-init-pr102276-1.c: New test.
	* gcc.dg/auto-init-pr102276-2.c: New test.
	* gcc.dg/auto-init-pr102276-3.c: New test.
	* gcc.dg/auto-init-pr102276-4.c: New test.

The following attempts to address gimplification of

   ... = VIEW_CONVERT_EXPR<int[4]>((i & 1) != 0 ? inv : src)[i];

which is problematic since gimplifying the base object
? inv : src produces a register temporary but GIMPLE does not
really support a register as a base for an ARRAY_REF (even
though that's not strictly validated it seems as can be seen
at -O0).  Interestingly the C++ frontend avoids this issue
by emitting the following GENERIC instead:

   ... = (i & 1) != 0 ? VIEW_CONVERT_EXPR<int[4]>(inv)[i] : VIEW_CONVERT_EXPR<int[4]>(src)[i];

The proposed patch below fixes things up when using an rvalue
as the base is OK by emitting a copy from a register base to a
non-register one.  The ?: as lvalue extension seems to be gone
for C, C++ again unwraps the COND_EXPR in that case.

2022-02-11  Richard Biener  <rguenther@suse.de>

	PR middle-end/104497
	* gimplify.cc (gimplify_compound_lval): Make sure the
	base is a non-register if needed and possible.

	* c-c++-common/torture/pr104497.c: New testcase.

When looking at __builtin_clear_padding today, I've noticed that
it is quite wasteful to extend the original user one argument to 3,
2 is enough.  We need to encode the original type of the first argument
because pointer conversions are useless in GIMPLE, and we need to record
a boolean whether it is for -ftrivial-auto-var-init=* or not.
But for recording the type we don't need the value (we've always used
zero) and for recording the boolean we don't need the type (we've always
used integer_type_node).
So, this patch merges the two into one.

2022-02-11  Jakub Jelinek  <jakub@redhat.com>

	* tree.cc (build_common_builtin_nodes): Fix up formatting in
	__builtin_clear_padding decl creation.
	* gimplify.cc (gimple_add_padding_init_for_auto_var): Encode
	for_auto_init in the value of 2nd BUILT_IN_CLEAR_PADDING
	argument rather than in 3rd argument.
	(gimplify_call_expr): Likewise.  Fix up comment formatting.
	* gimple-fold.cc (gimple_fold_builtin_clear_padding): Expect
	2 arguments instead of 3, take for_auto_init from the value
	of 2nd argument.

This patch adds the 'has_device_addr' clause to the OpenMP 'target' construct
which was introduced in OpenMP 5.1 (OpenMP API 5.1 specification pp. 197ff):

	has_device_addr(list)

"The has_device_addr clause indicates that its list items already have device
addresses and therefore they may be directly accessed from a target device.
If the device address of a list item is not for the device on which the target
region executes, accessing the list item inside the region results in
unspecified behavior. The list items may include array sections." (p. 200)

"A list item may not be specified in both an is_device_ptr clause and a
has_device_addr clause on the directive." (p. 202)

"A list item that appears in an is_device_ptr or a has_device_addr clause must
not be specified in any data-sharing attribute clause on the same target
construct." (p. 203)

gcc/c-family/ChangeLog:

	* c-omp.cc (c_omp_split_clauses): Added OMP_CLAUSE_HAS_DEVICE_ADDR case.
	* c-pragma.h (enum pragma_kind): Added 5.1 in comment.
	(enum pragma_omp_clause): Added PRAGMA_OMP_CLAUSE_HAS_DEVICE_ADDR.

gcc/c/ChangeLog:

	* c-parser.cc (c_parser_omp_clause_name): Parse 'has_device_addr'
	clause.
	(c_parser_omp_variable_list): Handle array sections.
	(c_parser_omp_clause_has_device_addr): Added.
	(c_parser_omp_all_clauses): Added PRAGMA_OMP_CLAUSE_HAS_DEVICE_ADDR
	case.
	(c_parser_omp_target_exit_data): Added HAS_DEVICE_ADDR to
	OMP_CLAUSE_MASK.
	* c-typeck.cc (handle_omp_array_sections): Handle clause restrictions.
	(c_finish_omp_clauses): Handle array sections.

gcc/cp/ChangeLog:

	* parser.cc (cp_parser_omp_clause_name): Parse 'has_device_addr' clause.
	(cp_parser_omp_var_list_no_open): Handle array sections.
	(cp_parser_omp_all_clauses): Added PRAGMA_OMP_CLAUSE_HAS_DEVICE_ADDR
	case.
	(cp_parser_omp_target_update): Added HAS_DEVICE_ADDR to OMP_CLAUSE_MASK.
	* semantics.cc (handle_omp_array_sections): Handle clause restrictions.
	(finish_omp_clauses): Handle array sections.

gcc/fortran/ChangeLog:

	* dump-parse-tree.cc (show_omp_clauses): Added OMP_LIST_HAS_DEVICE_ADDR
	case.
	* gfortran.h: Added OMP_LIST_HAS_DEVICE_ADDR.
	* openmp.cc (enum omp_mask2): Added OMP_CLAUSE_HAS_DEVICE_ADDR.
	(gfc_match_omp_clauses): Parse HAS_DEVICE_ADDR clause.
	(resolve_omp_clauses): Same.
	* trans-openmp.cc (gfc_trans_omp_variable_list): Added
	OMP_LIST_HAS_DEVICE_ADDR case.
	(gfc_trans_omp_clauses): Firstprivatize of array descriptors.

gcc/ChangeLog:

	* gimplify.cc (gimplify_scan_omp_clauses): Added cases for
	OMP_CLAUSE_HAS_DEVICE_ADDR
	and handle array sections.
	(gimplify_adjust_omp_clauses): Added OMP_CLAUSE_HAS_DEVICE_ADDR case.
	* omp-low.cc (scan_sharing_clauses): Handle OMP_CLAUSE_HAS_DEVICE_ADDR.
	(lower_omp_target): Same.
	* tree-core.h (enum omp_clause_code): Same.
	* tree-nested.cc (convert_nonlocal_omp_clauses): Same.
	(convert_local_omp_clauses): Same.
	* tree-pretty-print.cc (dump_omp_clause): Same.
	* tree.cc: Same.

libgomp/ChangeLog:

	* libgomp.texi: Updated entry for HAS_DEVICE_ADDR.
	* target.c (copy_firstprivate_data): Copy only if host address is not
	NULL.
	* testsuite/libgomp.c++/target-has-device-addr-2.C: New test.
	* testsuite/libgomp.c++/target-has-device-addr-4.C: New test.
	* testsuite/libgomp.c++/target-has-device-addr-5.C: New test.
	* testsuite/libgomp.c++/target-has-device-addr-6.C: New test.
	* testsuite/libgomp.c-c++-common/target-has-device-addr-1.c: New test.
	* testsuite/libgomp.c/target-has-device-addr-3.c: New test.
	* testsuite/libgomp.fortran/target-has-device-addr-1.f90: New test.
	* testsuite/libgomp.fortran/target-has-device-addr-2.f90: New test.
	* testsuite/libgomp.fortran/target-has-device-addr-3.f90: New test.
	* testsuite/libgomp.fortran/target-has-device-addr-4.f90: New test.

gcc/testsuite/ChangeLog:

	* c-c++-common/gomp/clauses-1.c: Added has_device_addr to test cases.
	* g++.dg/gomp/attrs-1.C: Added has_device_addr to test cases.
	* g++.dg/gomp/attrs-2.C: Added has_device_addr to test cases.
	* c-c++-common/gomp/target-has-device-addr-1.c: New test.
	* c-c++-common/gomp/target-has-device-addr-2.c: New test.
	* c-c++-common/gomp/target-is-device-ptr-1.c: New test.
	* c-c++-common/gomp/target-is-device-ptr-2.c: New test.
	* gfortran.dg/gomp/is_device_ptr-3.f90: New test.
	* gfortran.dg/gomp/target-has-device-addr-1.f90: New test.
	* gfortran.dg/gomp/target-has-device-addr-2.f90: New test.

This adds a flag to CONSTRUCTOR nodes indicating that for
clobbers this marks the end-of-life of storage as opposed to
just ending the lifetime of the object that occupied it.
The dangling pointer diagnostics uses CLOBBERs but is confused
by those emitted by the C++ frontend for example which emits
them for the second purpose at the start of CTORs.  The issue
is also appearant for aarch64 in PR104092.

Distinguishing the two cases is also necessary for the PR90348 fix.

Since I'm going to add another flag I added an enum clobber_flags
and a defaulted argument to build_clobber plus a convenient way to
query the enum from the CTOR tree and specify it for gimple_clobber_p.
Since 'CLOBBER' is already taken and I needed a name for the unspecified
clobber we have now I used 'CLOBBER_UNDEF'.

2022-02-03  Richard Biener  <rguenther@suse.de>

	PR middle-end/90348
	PR middle-end/104092
gcc/
	* tree-core.h (clobber_kind): New enum.
	(tree_base::u::bits::address_space): Document use in CONSTRUCTORs.
	* tree.h (CLOBBER_KIND): Add.
	(build_clobber): Add clobber kind argument, defaulted to
	CLOBBER_UNDEF.
	* tree.cc (build_clobber): Likewise.
	* gimple.h (gimple_clobber_p): New overload with specified kind.
	* tree-streamer-in.cc (streamer_read_tree_bitfields): Stream
	CLOBBER_KIND.
	* tree-streamer-out.cc (streamer_write_tree_bitfields):
	Likewise.
	* tree-pretty-print.cc (dump_generic_node): Mark EOL CLOBBERs.
	* gimplify.cc (gimplify_bind_expr): Build storage end-of-life clobbers
	with CLOBBER_EOL.
	(gimplify_target_expr): Likewise.
	* tree-inline.cc (expand_call_inline): Likewise.
	* tree-ssa-ccp.cc (insert_clobber_before_stack_restore): Likewise.
	* gimple-ssa-warn-access.cc (pass_waccess::check_stmt): Only treat
	CLOBBER_EOL clobbers as ending lifetime of storage.

gcc/lto/
	* lto-common.cc (compare_tree_sccs_1): Compare CLOBBER_KIND.

gcc/testsuite/
	* gcc.dg/pr87052.c: Adjust.

This issue was triggered after the patch extending syntax for component access
in map clauses in commit 0ab29cf0.

In gimplify_scan_omp_clauses, the case for handling indirect accesses (which
creates firstprivate ptr and zero-length array section map for such decls) was
erroneously went into for non-pointer cases (here being the base struct decl),
so added the
appropriate checks there.

Added new testcase is a compile only test for the ICE. The original omptests
t-partial-struct test actually should not execute correctly, because for
map(t.s->a[:N]), map(t.s[:1]) is not implicitly mapped, thus the entire
offloaded access does not work as is (fixing that omptests test is out of
scope here).

2022-01-27  Chung-Lin Tang  <cltang@codesourcery.com>

	PR middle-end/103642

gcc/ChangeLog:

	* gimplify.cc (gimplify_scan_omp_clauses): Do not do indir_p handling
	for non-pointer or non-reference-to-pointer cases.

gcc/testsuite/ChangeLog:

	* c-c++-common/gomp/pr103642.c: New test.

For this testcase, the cleanup that is supposed to happen if initialization
throws was wrongly being run on the normal control path as well.  This turns
out to be because the EH-only handling in gimple_push_cleanup didn't apply
to conditional cleanups such as we have for nothrow new, since we check
whether the result is non-null before proceeding with the initialization.

	PR c++/104007

gcc/ChangeLog:

	* gimplify.cc (gimple_push_cleanup): Handle eh_only in conditional
	context.

gcc/testsuite/ChangeLog:

	* g++.dg/eh/new2.C: New test.

ChangeLog:

	* MAINTAINERS: Rename .c names to .cc.

contrib/ChangeLog:

	* filter-clang-warnings.py: Rename .c names to .cc.
	* gcc_update: Likewise.
	* paranoia.cc: Likewise.

contrib/header-tools/ChangeLog:

	* README: Rename .c names to .cc.

gcc/ChangeLog:

	* Makefile.in: Rename .c names to .cc.
	* alias.h: Likewise.
	* asan.cc: Likewise.
	* auto-profile.h: Likewise.
	* basic-block.h (struct basic_block_d): Likewise.
	* btfout.cc: Likewise.
	* builtins.cc (expand_builtin_longjmp): Likewise.
	(validate_arg): Likewise.
	(access_ref::offset_bounded): Likewise.
	* caller-save.cc (reg_restore_code): Likewise.
	(setup_save_areas): Likewise.
	* calls.cc (initialize_argument_information): Likewise.
	(expand_call): Likewise.
	(emit_library_call_value_1): Likewise.
	* cfg-flags.def (RTL): Likewise.
	(SIBCALL): Likewise.
	(CAN_FALLTHRU): Likewise.
	* cfganal.cc (post_order_compute): Likewise.
	* cfgcleanup.cc (try_simplify_condjump): Likewise.
	(merge_blocks_move_predecessor_nojumps): Likewise.
	(merge_blocks_move_successor_nojumps): Likewise.
	(merge_blocks_move): Likewise.
	(old_insns_match_p): Likewise.
	(try_crossjump_bb): Likewise.
	* cfgexpand.cc (expand_gimple_stmt): Likewise.
	* cfghooks.cc (split_block_before_cond_jump): Likewise.
	(profile_record_check_consistency): Likewise.
	* cfghooks.h: Likewise.
	* cfgrtl.cc (pass_free_cfg::execute): Likewise.
	(rtl_can_merge_blocks): Likewise.
	(try_redirect_by_replacing_jump): Likewise.
	(make_pass_outof_cfg_layout_mode): Likewise.
	(cfg_layout_can_merge_blocks_p): Likewise.
	* cgraph.cc (release_function_body): Likewise.
	(cgraph_node::get_fun): Likewise.
	* cgraph.h (struct cgraph_node): Likewise.
	(asmname_hasher::equal): Likewise.
	(cgraph_inline_failed_type): Likewise.
	(thunk_adjust): Likewise.
	(dump_callgraph_transformation): Likewise.
	(record_references_in_initializer): Likewise.
	(ipa_discover_variable_flags): Likewise.
	* cgraphclones.cc (GTY): Likewise.
	* cgraphunit.cc (symbol_table::finalize_compilation_unit): Likewise.
	* collect-utils.h (GCC_COLLECT_UTILS_H): Likewise.
	* collect2-aix.h (GCC_COLLECT2_AIX_H): Likewise.
	* collect2.cc (maybe_run_lto_and_relink): Likewise.
	* combine-stack-adj.cc: Likewise.
	* combine.cc (setup_incoming_promotions): Likewise.
	(combine_simplify_rtx): Likewise.
	(count_rtxs): Likewise.
	* common.opt: Likewise.
	* common/config/aarch64/aarch64-common.cc: Likewise.
	* common/config/arm/arm-common.cc (arm_asm_auto_mfpu): Likewise.
	* common/config/avr/avr-common.cc: Likewise.
	* common/config/i386/i386-isas.h (struct _isa_names_table): Likewise.
	* conditions.h: Likewise.
	* config.gcc: Likewise.
	* config/aarch64/aarch64-builtins.cc (aarch64_resolve_overloaded_memtag): Likewise.
	* config/aarch64/aarch64-protos.h (aarch64_classify_address): Likewise.
	(aarch64_get_extension_string_for_isa_flags): Likewise.
	* config/aarch64/aarch64-sve-builtins.cc (function_builder::add_function): Likewise.
	* config/aarch64/aarch64.cc (aarch64_regmode_natural_size): Likewise.
	(aarch64_sched_first_cycle_multipass_dfa_lookahead): Likewise.
	(aarch64_option_valid_attribute_p): Likewise.
	(aarch64_short_vector_p): Likewise.
	(aarch64_float_const_representable_p): Likewise.
	* config/aarch64/aarch64.h (DBX_REGISTER_NUMBER): Likewise.
	(ASM_OUTPUT_POOL_EPILOGUE): Likewise.
	(GTY): Likewise.
	* config/aarch64/cortex-a57-fma-steering.cc: Likewise.
	* config/aarch64/driver-aarch64.cc (contains_core_p): Likewise.
	* config/aarch64/t-aarch64: Likewise.
	* config/aarch64/x-aarch64: Likewise.
	* config/aarch64/x-darwin: Likewise.
	* config/alpha/alpha-protos.h: Likewise.
	* config/alpha/alpha.cc (alpha_scalar_mode_supported_p): Likewise.
	* config/alpha/alpha.h (LONG_DOUBLE_TYPE_SIZE): Likewise.
	(enum reg_class): Likewise.
	* config/alpha/alpha.md: Likewise.
	* config/alpha/driver-alpha.cc (AMASK_LOCKPFTCHOK): Likewise.
	* config/alpha/x-alpha: Likewise.
	* config/arc/arc-protos.h (arc_eh_uses): Likewise.
	* config/arc/arc.cc (ARC_OPT): Likewise.
	(arc_ccfsm_advance): Likewise.
	(arc_arg_partial_bytes): Likewise.
	(conditionalize_nonjump): Likewise.
	* config/arc/arc.md: Likewise.
	* config/arc/builtins.def: Likewise.
	* config/arc/t-arc: Likewise.
	* config/arm/arm-c.cc (arm_resolve_overloaded_builtin): Likewise.
	(arm_pragma_target_parse): Likewise.
	* config/arm/arm-protos.h (save_restore_target_globals): Likewise.
	(arm_cpu_cpp_builtins): Likewise.
	* config/arm/arm.cc (vfp3_const_double_index): Likewise.
	(shift_op): Likewise.
	(thumb2_final_prescan_insn): Likewise.
	(arm_final_prescan_insn): Likewise.
	(arm_asm_output_labelref): Likewise.
	(arm_small_register_classes_for_mode_p): Likewise.
	* config/arm/arm.h: Likewise.
	* config/arm/arm.md: Likewise.
	* config/arm/driver-arm.cc: Likewise.
	* config/arm/symbian.h: Likewise.
	* config/arm/t-arm: Likewise.
	* config/arm/thumb1.md: Likewise.
	* config/arm/x-arm: Likewise.
	* config/avr/avr-c.cc (avr_register_target_pragmas): Likewise.
	* config/avr/avr-fixed.md: Likewise.
	* config/avr/avr-log.cc (avr_log_vadump): Likewise.
	* config/avr/avr-mcus.def: Likewise.
	* config/avr/avr-modes.def (FRACTIONAL_INT_MODE): Likewise.
	* config/avr/avr-passes.def (INSERT_PASS_BEFORE): Likewise.
	* config/avr/avr-protos.h (make_avr_pass_casesi): Likewise.
	* config/avr/avr.cc (avr_option_override): Likewise.
	(avr_build_builtin_va_list): Likewise.
	(avr_mode_dependent_address_p): Likewise.
	(avr_function_arg_advance): Likewise.
	(avr_asm_output_aligned_decl_common): Likewise.
	* config/avr/avr.h (RETURN_ADDR_RTX): Likewise.
	(SUPPORTS_INIT_PRIORITY): Likewise.
	* config/avr/avr.md: Likewise.
	* config/avr/builtins.def: Likewise.
	* config/avr/gen-avr-mmcu-specs.cc (IN_GEN_AVR_MMCU_TEXI): Likewise.
	* config/avr/gen-avr-mmcu-texi.cc (IN_GEN_AVR_MMCU_TEXI): Likewise.
	(main): Likewise.
	* config/avr/t-avr: Likewise.
	* config/bfin/bfin.cc (frame_related_constant_load): Likewise.
	* config/bpf/bpf-protos.h (GCC_BPF_PROTOS_H): Likewise.
	* config/bpf/bpf.h (enum reg_class): Likewise.
	* config/bpf/t-bpf: Likewise.
	* config/c6x/c6x-protos.h (GCC_C6X_PROTOS_H): Likewise.
	* config/cr16/cr16-protos.h: Likewise.
	* config/cris/cris.cc (cris_address_cost): Likewise.
	(cris_side_effect_mode_ok): Likewise.
	(cris_init_machine_status): Likewise.
	(cris_emit_movem_store): Likewise.
	* config/cris/cris.h (INDEX_REG_CLASS): Likewise.
	(enum reg_class): Likewise.
	(struct cum_args): Likewise.
	* config/cris/cris.opt: Likewise.
	* config/cris/sync.md: Likewise.
	* config/csky/csky.cc (csky_expand_prologue): Likewise.
	* config/darwin-c.cc: Likewise.
	* config/darwin-f.cc: Likewise.
	* config/darwin-sections.def (zobj_const_section): Likewise.
	* config/darwin.cc (output_objc_section_asm_op): Likewise.
	(fprintf): Likewise.
	* config/darwin.h (GTY): Likewise.
	* config/elfos.h: Likewise.
	* config/epiphany/epiphany-sched.md: Likewise.
	* config/epiphany/epiphany.cc (epiphany_function_value): Likewise.
	* config/epiphany/epiphany.h (GTY): Likewise.
	(NO_FUNCTION_CSE): Likewise.
	* config/epiphany/mode-switch-use.cc: Likewise.
	* config/epiphany/predicates.md: Likewise.
	* config/epiphany/t-epiphany: Likewise.
	* config/fr30/fr30-protos.h: Likewise.
	* config/frv/frv-protos.h: Likewise.
	* config/frv/frv.cc (TLS_BIAS): Likewise.
	* config/frv/frv.h (ASM_OUTPUT_ALIGNED_LOCAL): Likewise.
	* config/ft32/ft32-protos.h: Likewise.
	* config/gcn/gcn-hsa.h (ASM_APP_OFF): Likewise.
	* config/gcn/gcn.cc (gcn_init_libfuncs): Likewise.
	* config/gcn/mkoffload.cc (copy_early_debug_info): Likewise.
	* config/gcn/t-gcn-hsa: Likewise.
	* config/gcn/t-omp-device: Likewise.
	* config/h8300/h8300-protos.h (GCC_H8300_PROTOS_H): Likewise.
	(same_cmp_following_p): Likewise.
	* config/h8300/h8300.cc (F): Likewise.
	* config/h8300/h8300.h (struct cum_arg): Likewise.
	(BRANCH_COST): Likewise.
	* config/i386/cygming.h (DEFAULT_PCC_STRUCT_RETURN): Likewise.
	* config/i386/djgpp.h (TARGET_ASM_LTO_END): Likewise.
	* config/i386/dragonfly.h (NO_PROFILE_COUNTERS): Likewise.
	* config/i386/driver-i386.cc (detect_caches_intel): Likewise.
	* config/i386/freebsd.h (NO_PROFILE_COUNTERS): Likewise.
	* config/i386/i386-c.cc (ix86_target_macros): Likewise.
	* config/i386/i386-expand.cc (get_mode_wider_vector): Likewise.
	* config/i386/i386-options.cc (ix86_set_func_type): Likewise.
	* config/i386/i386-protos.h (ix86_extract_perm_from_pool_constant): Likewise.
	(ix86_register_pragmas): Likewise.
	(ix86_d_has_stdcall_convention): Likewise.
	(i386_pe_seh_init_sections): Likewise.
	* config/i386/i386.cc (ix86_function_arg_regno_p): Likewise.
	(ix86_function_value_regno_p): Likewise.
	(ix86_compute_frame_layout): Likewise.
	(legitimize_pe_coff_symbol): Likewise.
	(output_pic_addr_const): Likewise.
	* config/i386/i386.h (defined): Likewise.
	(host_detect_local_cpu): Likewise.
	(CONSTANT_ADDRESS_P): Likewise.
	(DEFAULT_LARGE_SECTION_THRESHOLD): Likewise.
	(struct machine_frame_state): Likewise.
	* config/i386/i386.md: Likewise.
	* config/i386/lynx.h (ASM_OUTPUT_ALIGN): Likewise.
	* config/i386/mmx.md: Likewise.
	* config/i386/sse.md: Likewise.
	* config/i386/t-cygming: Likewise.
	* config/i386/t-djgpp: Likewise.
	* config/i386/t-gnu-property: Likewise.
	* config/i386/t-i386: Likewise.
	* config/i386/t-intelmic: Likewise.
	* config/i386/t-omp-device: Likewise.
	* config/i386/winnt-cxx.cc (i386_pe_type_dllimport_p): Likewise.
	(i386_pe_adjust_class_at_definition): Likewise.
	* config/i386/winnt.cc (gen_stdcall_or_fastcall_suffix): Likewise.
	(i386_pe_mangle_decl_assembler_name): Likewise.
	(i386_pe_encode_section_info): Likewise.
	* config/i386/x-cygwin: Likewise.
	* config/i386/x-darwin: Likewise.
	* config/i386/x-i386: Likewise.
	* config/i386/x-mingw32: Likewise.
	* config/i386/x86-tune-sched-core.cc: Likewise.
	* config/i386/x86-tune.def: Likewise.
	* config/i386/xm-djgpp.h (STANDARD_STARTFILE_PREFIX_1): Likewise.
	* config/ia64/freebsd.h: Likewise.
	* config/ia64/hpux.h (REGISTER_TARGET_PRAGMAS): Likewise.
	* config/ia64/ia64-protos.h (ia64_except_unwind_info): Likewise.
	* config/ia64/ia64.cc (ia64_function_value_regno_p): Likewise.
	(ia64_secondary_reload_class): Likewise.
	(bundling): Likewise.
	* config/ia64/ia64.h: Likewise.
	* config/ia64/ia64.md: Likewise.
	* config/ia64/predicates.md: Likewise.
	* config/ia64/sysv4.h: Likewise.
	* config/ia64/t-ia64: Likewise.
	* config/iq2000/iq2000.h (FUNCTION_MODE): Likewise.
	* config/iq2000/iq2000.md: Likewise.
	* config/linux.h (TARGET_HAS_BIONIC): Likewise.
	(if): Likewise.
	* config/m32c/m32c.cc (m32c_function_needs_enter): Likewise.
	* config/m32c/m32c.h (MAX_REGS_PER_ADDRESS): Likewise.
	* config/m32c/t-m32c: Likewise.
	* config/m32r/m32r-protos.h: Likewise.
	* config/m32r/m32r.cc (m32r_print_operand): Likewise.
	* config/m32r/m32r.h: Likewise.
	* config/m32r/m32r.md: Likewise.
	* config/m68k/m68k-isas.def: Likewise.
	* config/m68k/m68k-microarchs.def: Likewise.
	* config/m68k/m68k-protos.h (strict_low_part_peephole_ok): Likewise.
	(m68k_epilogue_uses): Likewise.
	* config/m68k/m68k.cc (m68k_call_tls_get_addr): Likewise.
	(m68k_sched_adjust_cost): Likewise.
	(m68k_sched_md_init): Likewise.
	* config/m68k/m68k.h (__transfer_from_trampoline): Likewise.
	(enum m68k_function_kind): Likewise.
	* config/m68k/m68k.md: Likewise.
	* config/m68k/m68kemb.h: Likewise.
	* config/m68k/uclinux.h (ENDFILE_SPEC): Likewise.
	* config/mcore/mcore-protos.h: Likewise.
	* config/mcore/mcore.cc (mcore_expand_insv): Likewise.
	(mcore_expand_prolog): Likewise.
	* config/mcore/mcore.h (TARGET_MCORE): Likewise.
	* config/mcore/mcore.md: Likewise.
	* config/microblaze/microblaze-protos.h: Likewise.
	* config/microblaze/microblaze.cc (microblaze_legitimate_pic_operand): Likewise.
	(microblaze_function_prologue): Likewise.
	(microblaze_function_epilogue): Likewise.
	(microblaze_select_section): Likewise.
	(microblaze_asm_output_mi_thunk): Likewise.
	(microblaze_eh_return): Likewise.
	* config/microblaze/microblaze.h: Likewise.
	* config/microblaze/microblaze.md: Likewise.
	* config/microblaze/t-microblaze: Likewise.
	* config/mips/driver-native.cc: Likewise.
	* config/mips/loongson2ef.md: Likewise.
	* config/mips/mips-protos.h (mips_expand_vec_cmp_expr): Likewise.
	* config/mips/mips.cc (mips_rtx_costs): Likewise.
	(mips_output_filename): Likewise.
	(mips_output_function_prologue): Likewise.
	(mips_output_function_epilogue): Likewise.
	(mips_output_mi_thunk): Likewise.
	* config/mips/mips.h: Likewise.
	* config/mips/mips.md: Likewise.
	* config/mips/t-mips: Likewise.
	* config/mips/x-native: Likewise.
	* config/mmix/mmix-protos.h: Likewise.
	* config/mmix/mmix.cc (mmix_option_override): Likewise.
	(mmix_dbx_register_number): Likewise.
	(mmix_expand_prologue): Likewise.
	* config/mmix/mmix.h: Likewise.
	* config/mmix/mmix.md: Likewise.
	* config/mmix/predicates.md: Likewise.
	* config/mn10300/mn10300.cc (mn10300_symbolic_operand): Likewise.
	(mn10300_legitimate_pic_operand_p): Likewise.
	* config/mn10300/mn10300.h (enum reg_class): Likewise.
	(NO_FUNCTION_CSE): Likewise.
	* config/moxie/moxie-protos.h: Likewise.
	* config/moxie/uclinux.h (TARGET_LIBC_HAS_FUNCTION): Likewise.
	* config/msp430/msp430-devices.cc (extract_devices_dir_from_exec_prefix): Likewise.
	* config/msp430/msp430.cc (msp430_gimplify_va_arg_expr): Likewise.
	(msp430_incoming_return_addr_rtx): Likewise.
	* config/msp430/msp430.h (msp430_get_linker_devices_include_path): Likewise.
	* config/msp430/t-msp430: Likewise.
	* config/nds32/nds32-cost.cc (nds32_rtx_costs_speed_prefer): Likewise.
	(nds32_rtx_costs_size_prefer): Likewise.
	(nds32_init_rtx_costs): Likewise.
	* config/nds32/nds32-doubleword.md: Likewise.
	* config/nds32/nds32.cc (nds32_memory_move_cost): Likewise.
	(nds32_builtin_decl): Likewise.
	* config/nds32/nds32.h (enum nds32_16bit_address_type): Likewise.
	(enum nds32_isr_nested_type): Likewise.
	(enum reg_class): Likewise.
	* config/nds32/predicates.md: Likewise.
	* config/nds32/t-nds32: Likewise.
	* config/nios2/nios2.cc (nios2_pragma_target_parse): Likewise.
	* config/nvptx/nvptx-protos.h: Likewise.
	* config/nvptx/nvptx.cc (nvptx_goacc_expand_var_decl): Likewise.
	* config/nvptx/nvptx.h (TARGET_CPU_CPP_BUILTINS): Likewise.
	* config/nvptx/t-nvptx: Likewise.
	* config/nvptx/t-omp-device: Likewise.
	* config/pa/elf.h: Likewise.
	* config/pa/pa-linux.h (GLOBAL_ASM_OP): Likewise.
	* config/pa/pa-netbsd.h (GLOBAL_ASM_OP): Likewise.
	* config/pa/pa-openbsd.h (TARGET_ASM_GLOBALIZE_LABEL): Likewise.
	* config/pa/pa-protos.h (pa_eh_return_handler_rtx): Likewise.
	(pa_legitimize_reload_address): Likewise.
	(pa_can_use_return_insn): Likewise.
	* config/pa/pa.cc (mem_shadd_or_shadd_rtx_p): Likewise.
	(som_output_text_section_asm_op): Likewise.
	* config/pa/pa.h (PROFILE_BEFORE_PROLOGUE): Likewise.
	* config/pa/pa.md: Likewise.
	* config/pa/som.h: Likewise.
	* config/pa/t-pa: Likewise.
	* config/pdp11/pdp11.cc (decode_pdp11_d): Likewise.
	* config/pdp11/pdp11.h: Likewise.
	* config/pdp11/pdp11.md: Likewise.
	* config/pdp11/t-pdp11: Likewise.
	* config/pru/pru.md: Likewise.
	* config/pru/t-pru: Likewise.
	* config/riscv/riscv-protos.h (NUM_SYMBOL_TYPES): Likewise.
	(riscv_gpr_save_operation_p): Likewise.
	(riscv_d_register_target_info): Likewise.
	(riscv_init_builtins): Likewise.
	* config/riscv/riscv.cc (riscv_output_mi_thunk): Likewise.
	* config/riscv/riscv.h (CSW_MAX_OFFSET): Likewise.
	* config/riscv/t-riscv: Likewise.
	* config/rl78/rl78.cc (rl78_asm_ctor_dtor): Likewise.
	* config/rl78/t-rl78: Likewise.
	* config/rs6000/aix.h: Likewise.
	* config/rs6000/aix71.h (ASM_SPEC_COMMON): Likewise.
	* config/rs6000/aix72.h (ASM_SPEC_COMMON): Likewise.
	* config/rs6000/aix73.h (ASM_SPEC_COMMON): Likewise.
	* config/rs6000/darwin.h (TARGET_ASM_GLOBALIZE_LABEL): Likewise.
	* config/rs6000/driver-rs6000.cc: Likewise.
	* config/rs6000/freebsd.h: Likewise.
	* config/rs6000/freebsd64.h: Likewise.
	* config/rs6000/lynx.h (ASM_OUTPUT_ALIGN): Likewise.
	* config/rs6000/rbtree.cc: Likewise.
	* config/rs6000/rbtree.h: Likewise.
	* config/rs6000/rs6000-c.cc (rs6000_target_modify_macros): Likewise.
	* config/rs6000/rs6000-call.cc (rs6000_invalid_builtin): Likewise.
	(rs6000_expand_builtin): Likewise.
	(rs6000_init_builtins): Likewise.
	* config/rs6000/rs6000-cpus.def: Likewise.
	* config/rs6000/rs6000-gen-builtins.cc (write_init_ovld_table): Likewise.
	* config/rs6000/rs6000-internal.h (ALTIVEC_REG_BIT): Likewise.
	(quad_address_offset_p): Likewise.
	* config/rs6000/rs6000-logue.cc (interesting_frame_related_regno): Likewise.
	(rs6000_emit_epilogue): Likewise.
	* config/rs6000/rs6000-overload.def: Likewise.
	* config/rs6000/rs6000-p8swap.cc: Likewise.
	* config/rs6000/rs6000-protos.h (GCC_RS6000_PROTOS_H): Likewise.
	(rs6000_const_f32_to_i32): Likewise.
	* config/rs6000/rs6000.cc (legitimate_lo_sum_address_p): Likewise.
	(rs6000_debug_legitimize_address): Likewise.
	(rs6000_mode_dependent_address): Likewise.
	(rs6000_adjust_priority): Likewise.
	(rs6000_c_mode_for_suffix): Likewise.
	* config/rs6000/rs6000.h (defined): Likewise.
	(LONG_DOUBLE_TYPE_SIZE): Likewise.
	* config/rs6000/rs6000.md: Likewise.
	* config/rs6000/sysv4.h: Likewise.
	* config/rs6000/t-linux: Likewise.
	* config/rs6000/t-linux64: Likewise.
	* config/rs6000/t-rs6000: Likewise.
	* config/rs6000/x-darwin: Likewise.
	* config/rs6000/x-darwin64: Likewise.
	* config/rs6000/x-rs6000: Likewise.
	* config/rs6000/xcoff.h (ASM_OUTPUT_LABELREF): Likewise.
	* config/rx/rx.cc (rx_expand_builtin): Likewise.
	* config/s390/constraints.md: Likewise.
	* config/s390/driver-native.cc: Likewise.
	* config/s390/htmxlintrin.h: Likewise.
	* config/s390/s390-builtins.def (B_DEF): Likewise.
	(OB_DEF_VAR): Likewise.
	* config/s390/s390-builtins.h: Likewise.
	* config/s390/s390-c.cc: Likewise.
	* config/s390/s390-opts.h: Likewise.
	* config/s390/s390-protos.h (s390_check_symref_alignment): Likewise.
	(s390_register_target_pragmas): Likewise.
	* config/s390/s390.cc (s390_init_builtins): Likewise.
	(s390_expand_plus_operand): Likewise.
	(s390_expand_atomic): Likewise.
	(s390_valid_target_attribute_inner_p): Likewise.
	* config/s390/s390.h (LONG_DOUBLE_TYPE_SIZE): Likewise.
	* config/s390/s390.md: Likewise.
	* config/s390/t-s390: Likewise.
	* config/s390/vx-builtins.md: Likewise.
	* config/s390/x-native: Likewise.
	* config/sh/divtab-sh4-300.cc (main): Likewise.
	* config/sh/divtab-sh4.cc (main): Likewise.
	* config/sh/divtab.cc (main): Likewise.
	* config/sh/elf.h: Likewise.
	* config/sh/sh-protos.h (sh_fsca_int2sf): Likewise.
	* config/sh/sh.cc (SYMBOL_FLAG_FUNCVEC_FUNCTION): Likewise.
	(sh_struct_value_rtx): Likewise.
	(sh_remove_reg_dead_or_unused_notes): Likewise.
	* config/sh/sh.h (MIN_UNITS_PER_WORD): Likewise.
	* config/sh/t-sh: Likewise.
	* config/sol2-protos.h (solaris_override_options): Likewise.
	* config/sol2.h: Likewise.
	* config/sparc/driver-sparc.cc: Likewise.
	* config/sparc/freebsd.h: Likewise.
	* config/sparc/sparc-protos.h (make_pass_work_around_errata): Likewise.
	* config/sparc/sparc.cc (sparc_output_mi_thunk): Likewise.
	(sparc_asan_shadow_offset): Likewise.
	* config/sparc/sparc.h: Likewise.
	* config/sparc/sparc.md: Likewise.
	* config/sparc/t-sparc: Likewise.
	* config/sparc/x-sparc: Likewise.
	* config/stormy16/stormy16.cc (xstormy16_mode_dependent_address_p): Likewise.
	* config/t-darwin: Likewise.
	* config/t-dragonfly: Likewise.
	* config/t-freebsd: Likewise.
	* config/t-glibc: Likewise.
	* config/t-linux: Likewise.
	* config/t-netbsd: Likewise.
	* config/t-openbsd: Likewise.
	* config/t-pnt16-warn: Likewise.
	* config/t-sol2: Likewise.
	* config/t-vxworks: Likewise.
	* config/t-winnt: Likewise.
	* config/tilegx/t-tilegx: Likewise.
	* config/tilegx/tilegx-c.cc: Likewise.
	* config/tilegx/tilegx-protos.h (tilegx_function_profiler): Likewise.
	* config/tilegx/tilegx.md: Likewise.
	* config/tilepro/t-tilepro: Likewise.
	* config/tilepro/tilepro-c.cc: Likewise.
	* config/v850/t-v850: Likewise.
	* config/v850/v850-protos.h: Likewise.
	* config/v850/v850.cc (F): Likewise.
	* config/v850/v850.h (enum reg_class): Likewise.
	(SLOW_BYTE_ACCESS): Likewise.
	* config/vax/vax.cc (vax_mode_dependent_address_p): Likewise.
	* config/vax/vax.h (enum reg_class): Likewise.
	* config/vax/vax.md: Likewise.
	* config/visium/visium.cc (visium_legitimate_address_p): Likewise.
	* config/visium/visium.h: Likewise.
	* config/vms/t-vms: Likewise.
	* config/vms/vms-crtlmap.map: Likewise.
	* config/vms/vms-protos.h (vms_c_get_vms_ver): Likewise.
	* config/vx-common.h: Likewise.
	* config/x-darwin: Likewise.
	* config/x-hpux: Likewise.
	* config/x-linux: Likewise.
	* config/x-netbsd: Likewise.
	* config/x-openbsd: Likewise.
	* config/x-solaris: Likewise.
	* config/xtensa/xtensa-protos.h (xtensa_mem_offset): Likewise.
	* config/xtensa/xtensa.cc (xtensa_option_override): Likewise.
	* config/xtensa/xtensa.h: Likewise.
	* configure.ac: Likewise.
	* context.cc: Likewise.
	* convert.h: Likewise.
	* coretypes.h: Likewise.
	* coverage.cc: Likewise.
	* coverage.h: Likewise.
	* cppdefault.h (struct default_include): Likewise.
	* cprop.cc (local_cprop_pass): Likewise.
	(one_cprop_pass): Likewise.
	* cse.cc (hash_rtx_cb): Likewise.
	(fold_rtx): Likewise.
	* ctfc.h (ctfc_get_num_vlen_bytes): Likewise.
	* data-streamer.h (bp_unpack_var_len_int): Likewise.
	(streamer_write_widest_int): Likewise.
	* dbgcnt.def: Likewise.
	* dbxout.cc (dbxout_early_global_decl): Likewise.
	(dbxout_common_check): Likewise.
	* dbxout.h: Likewise.
	* debug.h (struct gcc_debug_hooks): Likewise.
	(dump_go_spec_init): Likewise.
	* df-core.cc: Likewise.
	* df-scan.cc (df_insn_info_delete): Likewise.
	(df_insn_delete): Likewise.
	* df.h (debug_df_chain): Likewise.
	(can_move_insns_across): Likewise.
	* dfp.cc (decimal_from_binary): Likewise.
	* diagnostic-color.cc: Likewise.
	* diagnostic-event-id.h: Likewise.
	* diagnostic-show-locus.cc (test_one_liner_labels): Likewise.
	* diagnostic.cc (bt_callback): Likewise.
	(num_digits): Likewise.
	* doc/avr-mmcu.texi: Likewise.
	* doc/cfg.texi: Likewise.
	* doc/contrib.texi: Likewise.
	* doc/cppinternals.texi: Likewise.
	* doc/extend.texi: Likewise.
	* doc/generic.texi: Likewise.
	* doc/gimple.texi: Likewise.
	* doc/gty.texi: Likewise.
	* doc/invoke.texi: Likewise.
	* doc/loop.texi: Likewise.
	* doc/lto.texi: Likewise.
	* doc/match-and-simplify.texi: Likewise.
	* doc/md.texi: Likewise.
	* doc/optinfo.texi: Likewise.
	* doc/options.texi: Likewise.
	* doc/passes.texi: Likewise.
	* doc/plugins.texi: Likewise.
	* doc/rtl.texi: Likewise.
	* doc/sourcebuild.texi: Likewise.
	* doc/tm.texi: Likewise.
	* doc/tm.texi.in: Likewise.
	* doc/tree-ssa.texi: Likewise.
	* dojump.cc (do_jump): Likewise.
	* dojump.h: Likewise.
	* dumpfile.cc (test_impl_location): Likewise.
	(test_capture_of_dump_calls): Likewise.
	* dumpfile.h (enum dump_kind): Likewise.
	(class dump_location_t): Likewise.
	(dump_enabled_p): Likewise.
	(enable_rtl_dump_file): Likewise.
	(dump_combine_total_stats): Likewise.
	* dwarf2asm.cc (dw2_asm_output_delta_uleb128): Likewise.
	* dwarf2ctf.h (ctf_debug_finish): Likewise.
	* dwarf2out.cc (dwarf2out_begin_prologue): Likewise.
	(struct loc_descr_context): Likewise.
	(rtl_for_decl_location): Likewise.
	(gen_subprogram_die): Likewise.
	(gen_label_die): Likewise.
	(is_trivial_indirect_ref): Likewise.
	(dwarf2out_late_global_decl): Likewise.
	(dwarf_file_hasher::hash): Likewise.
	(dwarf2out_end_source_file): Likewise.
	(dwarf2out_define): Likewise.
	(dwarf2out_early_finish): Likewise.
	* dwarf2out.h (struct dw_fde_node): Likewise.
	(struct dw_discr_list_node): Likewise.
	(output_loc_sequence_raw): Likewise.
	* emit-rtl.cc (gen_raw_REG): Likewise.
	(maybe_set_max_label_num): Likewise.
	* emit-rtl.h (struct rtl_data): Likewise.
	* errors.cc (internal_error): Likewise.
	(trim_filename): Likewise.
	* et-forest.cc: Likewise.
	* except.cc (init_eh_for_function): Likewise.
	* explow.cc (promote_ssa_mode): Likewise.
	(get_dynamic_stack_size): Likewise.
	* explow.h: Likewise.
	* expmed.h: Likewise.
	* expr.cc (safe_from_p): Likewise.
	(expand_expr_real_2): Likewise.
	(expand_expr_real_1): Likewise.
	* file-prefix-map.cc (remap_filename): Likewise.
	* final.cc (app_enable): Likewise.
	(make_pass_compute_alignments): Likewise.
	(final_scan_insn_1): Likewise.
	(final_scan_insn): Likewise.
	* fixed-value.h (fixed_from_string): Likewise.
	* flag-types.h (NO_DEBUG): Likewise.
	(DWARF2_DEBUG): Likewise.
	(VMS_DEBUG): Likewise.
	(BTF_DEBUG): Likewise.
	(enum ctf_debug_info_levels): Likewise.
	* fold-const.cc (const_binop): Likewise.
	(fold_binary_loc): Likewise.
	(fold_checksum_tree): Likewise.
	* fp-test.cc: Likewise.
	* function.cc (expand_function_end): Likewise.
	* function.h (struct function): Likewise.
	* fwprop.cc (should_replace_address): Likewise.
	* gcc-main.cc: Likewise.
	* gcc-rich-location.h (class gcc_rich_location): Likewise.
	* gcc-symtab.h: Likewise.
	* gcc.cc (MIN_FATAL_STATUS): Likewise.
	(driver_handle_option): Likewise.
	(quote_spec_arg): Likewise.
	(driver::finalize): Likewise.
	* gcc.h (set_input): Likewise.
	* gcov-dump.cc: Likewise.
	* gcov.cc (solve_flow_graph): Likewise.
	* gcse-common.cc: Likewise.
	* gcse.cc (make_pass_rtl_hoist): Likewise.
	* genattr-common.cc: Likewise.
	* genattrtab.cc (min_fn): Likewise.
	(write_const_num_delay_slots): Likewise.
	* genautomata.cc: Likewise.
	* genconditions.cc (write_one_condition): Likewise.
	* genconstants.cc: Likewise.
	* genemit.cc (gen_exp): Likewise.
	* generic-match-head.cc: Likewise.
	* genextract.cc: Likewise.
	* gengenrtl.cc (always_void_p): Likewise.
	* gengtype-parse.cc (gtymarker_opt): Likewise.
	* gengtype-state.cc (state_writer::state_writer): Likewise.
	(write_state_trailer): Likewise.
	(equals_type_number): Likewise.
	(read_state): Likewise.
	* gengtype.cc (open_base_files): Likewise.
	(struct file_rule_st): Likewise.
	(header_dot_h_frul): Likewise.
	* gengtype.h: Likewise.
	* genmatch.cc (main): Likewise.
	* genmddeps.cc: Likewise.
	* genmodes.cc (emit_mode_inner): Likewise.
	(emit_mode_unit_size): Likewise.
	* genpeep.cc (gen_peephole): Likewise.
	* genpreds.cc (write_tm_preds_h): Likewise.
	* genrecog.cc (validate_pattern): Likewise.
	(write_header): Likewise.
	(main): Likewise.
	* gensupport.cc (change_subst_attribute): Likewise.
	(traverse_c_tests): Likewise.
	(add_predicate): Likewise.
	(init_predicate_table): Likewise.
	* gensupport.h (struct optab_pattern): Likewise.
	(get_num_insn_codes): Likewise.
	(maybe_eval_c_test): Likewise.
	(struct pred_data): Likewise.
	* ggc-internal.h: Likewise.
	* gimple-fold.cc (maybe_fold_reference): Likewise.
	(get_range_strlen_tree): Likewise.
	* gimple-fold.h (gimple_stmt_integer_valued_real_p): Likewise.
	* gimple-low.cc: Likewise.
	* gimple-match-head.cc (directly_supported_p): Likewise.
	* gimple-pretty-print.h: Likewise.
	* gimple-ssa-sprintf.cc (format_percent): Likewise.
	(adjust_range_for_overflow): Likewise.
	* gimple-streamer.h: Likewise.
	* gimple.h (struct GTY): Likewise.
	(is_gimple_resx): Likewise.
	* gimplify.cc (gimplify_expr): Likewise.
	(gimplify_init_constructor): Likewise.
	(omp_construct_selector_matches): Likewise.
	(gimplify_omp_target_update): Likewise.
	(gimplify_omp_ordered): Likewise.
	(gimplify_va_arg_expr): Likewise.
	* graphite-isl-ast-to-gimple.cc (should_copy_to_new_region): Likewise.
	* haifa-sched.cc (increase_insn_priority): Likewise.
	(try_ready): Likewise.
	(sched_create_recovery_edges): Likewise.
	* ifcvt.cc (find_if_case_1): Likewise.
	(find_if_case_2): Likewise.
	* inchash.h: Likewise.
	* incpath.cc (add_env_var_paths): Likewise.
	* input.cc (dump_location_info): Likewise.
	(assert_loceq): Likewise.
	(test_lexer_string_locations_concatenation_1): Likewise.
	(test_lexer_string_locations_concatenation_2): Likewise.
	(test_lexer_string_locations_concatenation_3): Likewise.
	* input.h (BUILTINS_LOCATION): Likewise.
	(class string_concat_db): Likewise.
	* internal-fn.cc (expand_MUL_OVERFLOW): Likewise.
	(expand_LOOP_VECTORIZED): Likewise.
	* ipa-cp.cc (make_pass_ipa_cp): Likewise.
	* ipa-fnsummary.cc (remap_freqcounting_preds_after_dup): Likewise.
	(ipa_fn_summary_t::duplicate): Likewise.
	(make_pass_ipa_fn_summary): Likewise.
	* ipa-fnsummary.h (enum ipa_hints_vals): Likewise.
	* ipa-free-lang-data.cc (fld_simplified_type): Likewise.
	(free_lang_data_in_decl): Likewise.
	* ipa-inline.cc (compute_inlined_call_time): Likewise.
	(inline_always_inline_functions): Likewise.
	* ipa-inline.h (free_growth_caches): Likewise.
	(inline_account_function_p): Likewise.
	* ipa-modref.cc (modref_access_analysis::analyze_stmt): Likewise.
	(modref_eaf_analysis::analyze_ssa_name): Likewise.
	* ipa-param-manipulation.cc (ipa_param_body_adjustments::mark_dead_statements): Likewise.
	(ipa_param_body_adjustments::remap_with_debug_expressions): Likewise.
	* ipa-prop.cc (ipa_set_node_agg_value_chain): Likewise.
	* ipa-prop.h (IPA_UNDESCRIBED_USE): Likewise.
	(unadjusted_ptr_and_unit_offset): Likewise.
	* ipa-reference.cc (make_pass_ipa_reference): Likewise.
	* ipa-reference.h (GCC_IPA_REFERENCE_H): Likewise.
	* ipa-split.cc (consider_split): Likewise.
	* ipa-sra.cc (isra_read_node_info): Likewise.
	* ipa-utils.h (struct ipa_dfs_info): Likewise.
	(recursive_call_p): Likewise.
	(ipa_make_function_pure): Likewise.
	* ira-build.cc (ira_create_allocno): Likewise.
	(ira_flattening): Likewise.
	* ira-color.cc (do_coloring): Likewise.
	(update_curr_costs): Likewise.
	* ira-conflicts.cc (process_regs_for_copy): Likewise.
	* ira-int.h (struct ira_emit_data): Likewise.
	(ira_prohibited_mode_move_regs): Likewise.
	(ira_get_dup_out_num): Likewise.
	(ira_destroy): Likewise.
	(ira_tune_allocno_costs): Likewise.
	(ira_implicitly_set_insn_hard_regs): Likewise.
	(ira_build_conflicts): Likewise.
	(ira_color): Likewise.
	* ira-lives.cc (process_bb_node_lives): Likewise.
	* ira.cc (class ira_spilled_reg_stack_slot): Likewise.
	(setup_uniform_class_p): Likewise.
	(def_dominates_uses): Likewise.
	* ira.h (ira_nullify_asm_goto): Likewise.
	* langhooks.cc (lhd_post_options): Likewise.
	* langhooks.h (class substring_loc): Likewise.
	(struct lang_hooks_for_tree_inlining): Likewise.
	(struct lang_hooks_for_types): Likewise.
	(struct lang_hooks): Likewise.
	* libfuncs.h (synchronize_libfunc): Likewise.
	* loop-doloop.cc (doloop_condition_get): Likewise.
	* loop-init.cc (fix_loop_structure): Likewise.
	* loop-invariant.cc: Likewise.
	* lower-subreg.h: Likewise.
	* lra-constraints.cc (curr_insn_transform): Likewise.
	* lra-int.h (struct lra_insn_reg): Likewise.
	(lra_undo_inheritance): Likewise.
	(lra_setup_reload_pseudo_preferenced_hard_reg): Likewise.
	(lra_split_hard_reg_for): Likewise.
	(lra_coalesce): Likewise.
	(lra_final_code_change): Likewise.
	* lra-spills.cc (lra_final_code_change): Likewise.
	* lra.cc (lra_process_new_insns): Likewise.
	* lto-compress.h (struct lto_compression_stream): Likewise.
	* lto-streamer-out.cc (DFS::DFS_write_tree_body): Likewise.
	(write_symbol): Likewise.
	* lto-streamer.h (enum LTO_tags): Likewise.
	(lto_value_range_error): Likewise.
	(lto_append_block): Likewise.
	(lto_streamer_hooks_init): Likewise.
	(stream_read_tree_ref): Likewise.
	(lto_prepare_function_for_streaming): Likewise.
	(select_what_to_stream): Likewise.
	(omp_lto_input_declare_variant_alt): Likewise.
	(cl_optimization_stream_in): Likewise.
	* lto-wrapper.cc (append_compiler_options): Likewise.
	* machmode.def: Likewise.
	* machmode.h (struct int_n_data_t): Likewise.
	* main.cc (main): Likewise.
	* match.pd: Likewise.
	* omp-builtins.def (BUILT_IN_GOMP_CRITICAL_NAME_END): Likewise.
	(BUILT_IN_GOMP_LOOP_ULL_ORDERED_RUNTIME_NEXT): Likewise.
	* omp-expand.cc (expand_omp_atomic_fetch_op): Likewise.
	(make_pass_expand_omp_ssa): Likewise.
	* omp-low.cc (struct omp_context): Likewise.
	(struct omp_taskcopy_context): Likewise.
	(lower_omp): Likewise.
	* omp-oacc-neuter-broadcast.cc (omp_sese_active_worker_call): Likewise.
	(mask_name): Likewise.
	(omp_sese_dump_pars): Likewise.
	(worker_single_simple): Likewise.
	* omp-offload.cc (omp_finish_file): Likewise.
	(execute_oacc_loop_designation): Likewise.
	* optabs-query.cc (lshift_cheap_p): Likewise.
	* optc-gen.awk: Likewise.
	* optc-save-gen.awk: Likewise.
	* optinfo-emit-json.cc (optrecord_json_writer::optrecord_json_writer): Likewise.
	* opts-common.cc: Likewise.
	* output.h (app_enable): Likewise.
	(output_operand_lossage): Likewise.
	(insn_current_reference_address): Likewise.
	(get_insn_template): Likewise.
	(output_quoted_string): Likewise.
	* pass_manager.h (struct register_pass_info): Likewise.
	* plugin.cc: Likewise.
	* plugin.def (PLUGIN_ANALYZER_INIT): Likewise.
	* plugin.h (invoke_plugin_callbacks): Likewise.
	* pointer-query.cc (handle_mem_ref): Likewise.
	* postreload-gcse.cc (alloc_mem): Likewise.
	* predict.h (enum prediction): Likewise.
	(add_reg_br_prob_note): Likewise.
	* prefix.h: Likewise.
	* profile.h (get_working_sets): Likewise.
	* read-md.cc: Likewise.
	* read-md.h (struct mapping): Likewise.
	(class md_reader): Likewise.
	(class noop_reader): Likewise.
	* read-rtl-function.cc (function_reader::create_function): Likewise.
	(function_reader::extra_parsing_for_operand_code_0): Likewise.
	* read-rtl.cc (initialize_iterators): Likewise.
	* real.cc: Likewise.
	* real.h (struct real_value): Likewise.
	(format_helper::format_helper): Likewise.
	(real_hash): Likewise.
	(real_can_shorten_arithmetic): Likewise.
	* recog.cc (struct target_recog): Likewise.
	(offsettable_nonstrict_memref_p): Likewise.
	(constrain_operands): Likewise.
	* recog.h (MAX_RECOG_ALTERNATIVES): Likewise.
	(which_op_alt): Likewise.
	(struct insn_gen_fn): Likewise.
	* reg-notes.def (REG_NOTE): Likewise.
	* reg-stack.cc: Likewise.
	* regs.h (reg_is_parm_p): Likewise.
	* regset.h: Likewise.
	* reload.cc (push_reload): Likewise.
	(find_reloads): Likewise.
	(find_reloads_address_1): Likewise.
	(find_replacement): Likewise.
	(refers_to_regno_for_reload_p): Likewise.
	(refers_to_mem_for_reload_p): Likewise.
	* reload.h (push_reload): Likewise.
	(deallocate_reload_reg): Likewise.
	* reload1.cc (emit_input_reload_insns): Likewise.
	* reorg.cc (relax_delay_slots): Likewise.
	* rtl.def (UNKNOWN): Likewise.
	(SEQUENCE): Likewise.
	(BARRIER): Likewise.
	(ASM_OPERANDS): Likewise.
	(EQ_ATTR_ALT): Likewise.
	* rtl.h (struct GTY): Likewise.
	(LABEL_NAME): Likewise.
	(LABEL_ALT_ENTRY_P): Likewise.
	(SUBREG_BYTE): Likewise.
	(get_stack_check_protect): Likewise.
	(dump_rtx_statistics): Likewise.
	(unwrap_const_vec_duplicate): Likewise.
	(subreg_promoted_mode): Likewise.
	(gen_lowpart_common): Likewise.
	(operand_subword): Likewise.
	(immed_wide_int_const): Likewise.
	(decide_function_section): Likewise.
	(active_insn_p): Likewise.
	(delete_related_insns): Likewise.
	(try_split): Likewise.
	(val_signbit_known_clear_p): Likewise.
	(simplifiable_subregs): Likewise.
	(set_insn_deleted): Likewise.
	(subreg_get_info): Likewise.
	(remove_free_EXPR_LIST_node): Likewise.
	(finish_subregs_of_mode): Likewise.
	(get_mem_attrs): Likewise.
	(lookup_constant_def): Likewise.
	(rtx_to_tree_code): Likewise.
	(hash_rtx): Likewise.
	(condjump_in_parallel_p): Likewise.
	(validate_subreg): Likewise.
	(make_compound_operation): Likewise.
	(schedule_ebbs): Likewise.
	(print_inline_rtx): Likewise.
	(fixup_args_size_notes): Likewise.
	(expand_dec): Likewise.
	(prepare_copy_insn): Likewise.
	(mark_elimination): Likewise.
	(valid_mode_changes_for_regno): Likewise.
	(make_debug_expr_from_rtl): Likewise.
	(delete_vta_debug_insns): Likewise.
	(simplify_using_condition): Likewise.
	(set_insn_locations): Likewise.
	(fatal_insn_not_found): Likewise.
	(word_register_operation_p): Likewise.
	* rtlanal.cc (get_call_fndecl): Likewise.
	(side_effects_p): Likewise.
	(subreg_nregs): Likewise.
	(rtx_cost): Likewise.
	(canonicalize_condition): Likewise.
	* rtlanal.h (rtx_properties::try_to_add_note): Likewise.
	* run-rtl-passes.cc (run_rtl_passes): Likewise.
	* sanitizer.def (BUILT_IN_ASAN_VERSION_MISMATCH_CHECK): Likewise.
	* sched-deps.cc (add_dependence_1): Likewise.
	* sched-ebb.cc (begin_move_insn): Likewise.
	(add_deps_for_risky_insns): Likewise.
	(advance_target_bb): Likewise.
	* sched-int.h (reemit_notes): Likewise.
	(struct _haifa_insn_data): Likewise.
	(HID): Likewise.
	(DEP_CANCELLED): Likewise.
	(debug_ds): Likewise.
	(number_in_ready): Likewise.
	(schedule_ebbs_finish): Likewise.
	(find_modifiable_mems): Likewise.
	* sched-rgn.cc (debug_rgn_dependencies): Likewise.
	* sel-sched-dump.cc (dump_lv_set): Likewise.
	* sel-sched-dump.h: Likewise.
	* sel-sched-ir.cc (sel_insn_rtx_cost): Likewise.
	(setup_id_reg_sets): Likewise.
	(has_dependence_p): Likewise.
	(sel_num_cfg_preds_gt_1): Likewise.
	(bb_ends_ebb_p): Likewise.
	* sel-sched-ir.h (struct _list_node): Likewise.
	(struct idata_def): Likewise.
	(bb_next_bb): Likewise.
	* sel-sched.cc (vinsn_writes_one_of_regs_p): Likewise.
	(choose_best_pseudo_reg): Likewise.
	(verify_target_availability): Likewise.
	(can_speculate_dep_p): Likewise.
	(sel_rank_for_schedule): Likewise.
	* selftest-run-tests.cc (selftest::run_tests): Likewise.
	* selftest.h (class auto_fix_quotes): Likewise.
	* shrink-wrap.cc (handle_simple_exit): Likewise.
	* shrink-wrap.h: Likewise.
	* simplify-rtx.cc (simplify_context::simplify_associative_operation): Likewise.
	(simplify_context::simplify_gen_vec_select): Likewise.
	* spellcheck-tree.h: Likewise.
	* spellcheck.h: Likewise.
	* statistics.h (struct function): Likewise.
	* stmt.cc (conditional_probability): Likewise.
	* stmt.h: Likewise.
	* stor-layout.h: Likewise.
	* streamer-hooks.h: Likewise.
	* stringpool.h: Likewise.
	* symtab.cc (symbol_table::change_decl_assembler_name): Likewise.
	* target.def (HOOK_VECTOR_END): Likewise.
	(type.): Likewise.
	* target.h (union cumulative_args_t): Likewise.
	(by_pieces_ninsns): Likewise.
	(class predefined_function_abi): Likewise.
	* targhooks.cc (default_translate_mode_attribute): Likewise.
	* timevar.def: Likewise.
	* timevar.h (class timer): Likewise.
	* toplev.h (enable_rtl_dump_file): Likewise.
	* trans-mem.cc (collect_bb2reg): Likewise.
	* tree-call-cdce.cc (gen_conditions_for_pow): Likewise.
	* tree-cfg.cc (remove_bb): Likewise.
	(verify_gimple_debug): Likewise.
	(remove_edge_and_dominated_blocks): Likewise.
	(push_fndecl): Likewise.
	* tree-cfgcleanup.h (GCC_TREE_CFGCLEANUP_H): Likewise.
	* tree-complex.cc (expand_complex_multiplication): Likewise.
	(expand_complex_div_straight): Likewise.
	* tree-core.h (enum tree_index): Likewise.
	(enum operand_equal_flag): Likewise.
	* tree-eh.cc (honor_protect_cleanup_actions): Likewise.
	* tree-if-conv.cc (if_convertible_gimple_assign_stmt_p): Likewise.
	* tree-inline.cc (initialize_inlined_parameters): Likewise.
	* tree-inline.h (force_value_to_type): Likewise.
	* tree-nested.cc (get_chain_decl): Likewise.
	(walk_all_functions): Likewise.
	* tree-object-size.h: Likewise.
	* tree-outof-ssa.cc: Likewise.
	* tree-parloops.cc (create_parallel_loop): Likewise.
	* tree-pretty-print.cc (print_generic_expr_to_str): Likewise.
	(dump_generic_node): Likewise.
	* tree-profile.cc (tree_profiling): Likewise.
	* tree-sra.cc (maybe_add_sra_candidate): Likewise.
	* tree-ssa-address.cc: Likewise.
	* tree-ssa-alias.cc: Likewise.
	* tree-ssa-alias.h (ao_ref::max_size_known_p): Likewise.
	(dump_alias_stats): Likewise.
	* tree-ssa-ccp.cc: Likewise.
	* tree-ssa-coalesce.h: Likewise.
	* tree-ssa-live.cc (remove_unused_scope_block_p): Likewise.
	* tree-ssa-loop-manip.cc (copy_phi_node_args): Likewise.
	* tree-ssa-loop-unswitch.cc: Likewise.
	* tree-ssa-math-opts.cc: Likewise.
	* tree-ssa-operands.cc (class operands_scanner): Likewise.
	* tree-ssa-pre.cc: Likewise.
	* tree-ssa-reassoc.cc (optimize_ops_list): Likewise.
	(debug_range_entry): Likewise.
	* tree-ssa-sccvn.cc (eliminate_dom_walker::eliminate_stmt): Likewise.
	* tree-ssa-sccvn.h (TREE_SSA_SCCVN_H): Likewise.
	* tree-ssa-scopedtables.cc (add_expr_commutative): Likewise.
	(equal_mem_array_ref_p): Likewise.
	* tree-ssa-strlen.cc (is_strlen_related_p): Likewise.
	* tree-ssa-strlen.h (get_range_strlen_dynamic): Likewise.
	* tree-ssa-tail-merge.cc (stmt_local_def): Likewise.
	* tree-ssa-ter.h: Likewise.
	* tree-ssa-threadupdate.h (enum bb_dom_status): Likewise.
	* tree-streamer-in.cc (lto_input_ts_block_tree_pointers): Likewise.
	* tree-streamer-out.cc (pack_ts_block_value_fields): Likewise.
	(write_ts_block_tree_pointers): Likewise.
	* tree-streamer.h (struct streamer_tree_cache_d): Likewise.
	(streamer_read_tree_bitfields): Likewise.
	(streamer_write_integer_cst): Likewise.
	* tree-vect-patterns.cc (apply_binop_and_append_stmt): Likewise.
	(vect_synth_mult_by_constant): Likewise.
	* tree-vect-stmts.cc (vectorizable_operation): Likewise.
	* tree-vectorizer.cc: Likewise.
	* tree-vectorizer.h (class auto_purge_vect_location): Likewise.
	(vect_update_inits_of_drs): Likewise.
	(vect_get_mask_type_for_stmt): Likewise.
	(vect_rgroup_iv_might_wrap_p): Likewise.
	(cse_and_gimplify_to_preheader): Likewise.
	(vect_free_slp_tree): Likewise.
	(vect_pattern_recog): Likewise.
	(vect_stmt_dominates_stmt_p): Likewise.
	* tree.cc (initialize_tree_contains_struct): Likewise.
	(need_assembler_name_p): Likewise.
	(type_with_interoperable_signedness): Likewise.
	* tree.def (SWITCH_EXPR): Likewise.
	* tree.h (TYPE_SYMTAB_ADDRESS): Likewise.
	(poly_int_tree_p): Likewise.
	(inlined_function_outer_scope_p): Likewise.
	(tree_code_for_canonical_type_merging): Likewise.
	* value-prof.cc: Likewise.
	* value-prof.h (get_nth_most_common_value): Likewise.
	(find_func_by_profile_id): Likewise.
	* value-range.cc (vrp_operand_equal_p): Likewise.
	* value-range.h: Likewise.
	* var-tracking.cc: Likewise.
	* varasm.cc (default_function_section): Likewise.
	(function_section_1): Likewise.
	(assemble_variable): Likewise.
	(handle_vtv_comdat_section): Likewise.
	* vec.h (struct vec_prefix): Likewise.
	* vmsdbgout.cc (full_name): Likewise.
	* vtable-verify.cc: Likewise.
	* vtable-verify.h (struct vtv_graph_node): Likewise.
	* xcoffout.cc: Likewise.
	* xcoffout.h (DEBUG_SYMS_TEXT): Likewise.

gcc/ada/ChangeLog:

	* Make-generated.in: Rename .c names to .cc.
	* adaint.c: Likewise.
	* ctrl_c.c (dummy_handler): Likewise.
	* gcc-interface/Makefile.in: Likewise.
	* gcc-interface/config-lang.in: Likewise.
	* gcc-interface/decl.cc (concat_name): Likewise.
	(init_gnat_decl): Likewise.
	* gcc-interface/gigi.h (concat_name): Likewise.
	(init_gnat_utils): Likewise.
	(build_call_raise_range): Likewise.
	(gnat_mark_addressable): Likewise.
	(gnat_protect_expr): Likewise.
	(gnat_rewrite_reference): Likewise.
	* gcc-interface/lang-specs.h (ADA_DUMPS_OPTIONS): Likewise.
	* gcc-interface/utils.cc (GTY): Likewise.
	(add_deferred_type_context): Likewise.
	(init_gnat_utils): Likewise.
	* gcc-interface/utils2.cc (gnat_stable_expr_p): Likewise.
	(gnat_protect_expr): Likewise.
	(gnat_stabilize_reference_1): Likewise.
	(gnat_rewrite_reference): Likewise.
	* gsocket.h: Likewise.
	* init.cc (__gnat_error_handler): Likewise.
	* libgnarl/s-intman.ads: Likewise.
	* libgnarl/s-osinte__android.ads: Likewise.
	* libgnarl/s-osinte__darwin.ads: Likewise.
	* libgnarl/s-osinte__hpux.ads: Likewise.
	* libgnarl/s-osinte__linux.ads: Likewise.
	* libgnarl/s-osinte__qnx.ads: Likewise.
	* libgnarl/s-taskin.ads: Likewise.
	* rtfinal.cc: Likewise.
	* s-oscons-tmplt.c (CND): Likewise.
	* set_targ.ads: Likewise.

gcc/analyzer/ChangeLog:

	* analyzer.cc (is_special_named_call_p): Rename .c names to .cc.
	(is_named_call_p): Likewise.
	* region-model-asm.cc (deterministic_p): Likewise.
	* region.cc (field_region::get_relative_concrete_offset): Likewise.
	* sm-malloc.cc (method_p): Likewise.
	* supergraph.cc (superedge::dump_dot): Likewise.

gcc/c-family/ChangeLog:

	* c-ada-spec.cc: Rename .c names to .cc.
	* c-ada-spec.h: Likewise.
	* c-common.cc (c_build_vec_convert): Likewise.
	(warning_candidate_p): Likewise.
	* c-common.h (enum rid): Likewise.
	(build_real_imag_expr): Likewise.
	(finish_label_address_expr): Likewise.
	(c_get_substring_location): Likewise.
	(c_build_bind_expr): Likewise.
	(conflict_marker_get_final_tok_kind): Likewise.
	(c_parse_error): Likewise.
	(check_missing_format_attribute): Likewise.
	(invalid_array_size_error): Likewise.
	(warn_for_multistatement_macros): Likewise.
	(build_attr_access_from_parms): Likewise.
	* c-cppbuiltin.cc (c_cpp_builtins): Likewise.
	* c-format.cc: Likewise.
	* c-gimplify.cc (c_gimplify_expr): Likewise.
	* c-indentation.h: Likewise.
	* c-objc.h (objc_prop_attr_kind_for_rid): Likewise.
	* c-omp.cc (c_omp_predetermined_mapping): Likewise.
	* c-opts.cc (c_common_post_options): Likewise.
	(set_std_cxx23): Likewise.
	* c-pragma.cc (handle_pragma_redefine_extname): Likewise.
	* c-pretty-print.h: Likewise.

gcc/c/ChangeLog:

	* Make-lang.in: Rename .c names to .cc.
	* c-convert.cc: Likewise.
	* c-decl.cc (struct lang_identifier): Likewise.
	(pop_scope): Likewise.
	(finish_decl): Likewise.
	* c-objc-common.h (GCC_C_OBJC_COMMON): Likewise.
	* c-parser.cc (c_parser_skip_to_end_of_block_or_statement): Likewise.
	* c-parser.h (GCC_C_PARSER_H): Likewise.
	* c-tree.h (c_keyword_starts_typename): Likewise.
	(finish_declspecs): Likewise.
	(c_get_alias_set): Likewise.
	(enum c_oracle_request): Likewise.
	(tag_exists_p): Likewise.
	(set_c_expr_source_range): Likewise.
	* c-typeck.cc (c_common_type): Likewise.
	(c_finish_omp_clauses): Likewise.
	* config-lang.in: Likewise.

gcc/cp/ChangeLog:

	* Make-lang.in: Rename .c names to .cc.
	* config-lang.in: Likewise.
	* constexpr.cc (cxx_eval_constant_expression): Likewise.
	* coroutines.cc (morph_fn_to_coro): Likewise.
	* cp-gimplify.cc (cp_gimplify_expr): Likewise.
	* cp-lang.cc (struct lang_hooks): Likewise.
	(get_template_argument_pack_elems_folded): Likewise.
	* cp-objcp-common.cc (cp_tree_size): Likewise.
	(cp_unit_size_without_reusable_padding): Likewise.
	(pop_file_scope): Likewise.
	(cp_pushdecl): Likewise.
	* cp-objcp-common.h (GCC_CP_OBJCP_COMMON): Likewise.
	(cxx_simulate_record_decl): Likewise.
	* cp-tree.h (struct named_label_entry): Likewise.
	(current_function_return_value): Likewise.
	(more_aggr_init_expr_args_p): Likewise.
	(get_function_version_dispatcher): Likewise.
	(common_enclosing_class): Likewise.
	(strip_fnptr_conv): Likewise.
	(current_decl_namespace): Likewise.
	(do_aggregate_paren_init): Likewise.
	(cp_check_const_attributes): Likewise.
	(qualified_name_lookup_error): Likewise.
	(generic_targs_for): Likewise.
	(mark_exp_read): Likewise.
	(is_global_friend): Likewise.
	(maybe_reject_flexarray_init): Likewise.
	(module_token_lang): Likewise.
	(handle_module_option): Likewise.
	(literal_integer_zerop): Likewise.
	(build_extra_args): Likewise.
	(build_if_nonnull): Likewise.
	(maybe_check_overriding_exception_spec): Likewise.
	(finish_omp_target_clauses): Likewise.
	(maybe_warn_zero_as_null_pointer_constant): Likewise.
	(cxx_print_error_function): Likewise.
	(decl_in_std_namespace_p): Likewise.
	(merge_exception_specifiers): Likewise.
	(mangle_module_global_init): Likewise.
	(cxx_block_may_fallthru): Likewise.
	(fold_builtin_source_location): Likewise.
	(enum cp_oracle_request): Likewise.
	(subsumes): Likewise.
	(cp_finish_injected_record_type): Likewise.
	(vtv_build_vtable_verify_fndecl): Likewise.
	(cp_tree_c_finish_parsing): Likewise.
	* cvt.cc (diagnose_ref_binding): Likewise.
	(convert_to_void): Likewise.
	(convert_force): Likewise.
	(type_promotes_to): Likewise.
	* decl.cc (make_unbound_class_template_raw): Likewise.
	(cxx_init_decl_processing): Likewise.
	(check_class_member_definition_namespace): Likewise.
	(cxx_maybe_build_cleanup): Likewise.
	* decl2.cc (maybe_emit_vtables): Likewise.
	* error.cc (dump_function_name): Likewise.
	* init.cc (is_class_type): Likewise.
	(build_new_1): Likewise.
	* lang-specs.h: Likewise.
	* method.cc (make_alias_for_thunk): Likewise.
	* module.cc (specialization_add): Likewise.
	(module_state::read_cluster): Likewise.
	* name-lookup.cc (check_extern_c_conflict): Likewise.
	* name-lookup.h (struct cxx_binding): Likewise.
	* parser.cc (cp_parser_identifier): Likewise.
	* parser.h (struct cp_parser): Likewise.
	* pt.cc (has_value_dependent_address): Likewise.
	(push_tinst_level_loc): Likewise.
	* semantics.cc (finish_omp_clauses): Likewise.
	(finish_omp_atomic): Likewise.
	* tree.cc (cp_save_expr): Likewise.
	(cp_free_lang_data): Likewise.
	* typeck.cc (cp_common_type): Likewise.
	(strip_array_domain): Likewise.
	(rationalize_conditional_expr): Likewise.
	(check_return_expr): Likewise.
	* vtable-class-hierarchy.cc: Likewise.

gcc/d/ChangeLog:

	* d-gimplify.cc: Rename .c names to .cc.
	* d-incpath.cc: Likewise.
	* lang-specs.h: Likewise.

gcc/fortran/ChangeLog:

	* check.cc (gfc_check_all_any): Rename .c names to .cc.
	* class.cc (find_intrinsic_vtab): Likewise.
	* config-lang.in: Likewise.
	* cpp.cc (cpp_define_builtins): Likewise.
	* data.cc (get_array_index): Likewise.
	* decl.cc (match_clist_expr): Likewise.
	(get_proc_name): Likewise.
	(gfc_verify_c_interop_param): Likewise.
	(gfc_get_pdt_instance): Likewise.
	(gfc_match_formal_arglist): Likewise.
	(gfc_get_type_attr_spec): Likewise.
	* dependency.cc: Likewise.
	* error.cc (gfc_format_decoder): Likewise.
	* expr.cc (check_restricted): Likewise.
	(gfc_build_default_init_expr): Likewise.
	* f95-lang.cc: Likewise.
	* gfc-internals.texi: Likewise.
	* gfortran.h (enum match): Likewise.
	(enum procedure_type): Likewise.
	(enum oacc_routine_lop): Likewise.
	(gfc_get_pdt_instance): Likewise.
	(gfc_end_source_files): Likewise.
	(gfc_mpz_set_hwi): Likewise.
	(gfc_get_option_string): Likewise.
	(gfc_find_sym_in_expr): Likewise.
	(gfc_errors_to_warnings): Likewise.
	(gfc_real_4_kind): Likewise.
	(gfc_free_finalizer): Likewise.
	(gfc_sym_get_dummy_args): Likewise.
	(gfc_check_intrinsic_standard): Likewise.
	(gfc_free_case_list): Likewise.
	(gfc_resolve_oacc_routines): Likewise.
	(gfc_check_vardef_context): Likewise.
	(gfc_free_association_list): Likewise.
	(gfc_implicit_pure_function): Likewise.
	(gfc_ref_dimen_size): Likewise.
	(gfc_compare_actual_formal): Likewise.
	(gfc_resolve_wait): Likewise.
	(gfc_dt_upper_string): Likewise.
	(gfc_generate_module_code): Likewise.
	(gfc_delete_bbt): Likewise.
	(debug): Likewise.
	(gfc_build_block_ns): Likewise.
	(gfc_dep_difference): Likewise.
	(gfc_invalid_null_arg): Likewise.
	(gfc_is_finalizable): Likewise.
	(gfc_fix_implicit_pure): Likewise.
	(gfc_is_size_zero_array): Likewise.
	(gfc_is_reallocatable_lhs): Likewise.
	* gfortranspec.cc: Likewise.
	* interface.cc (compare_actual_expr): Likewise.
	* intrinsic.cc (add_functions): Likewise.
	* iresolve.cc (gfc_resolve_matmul): Likewise.
	(gfc_resolve_alarm_sub): Likewise.
	* iso-c-binding.def: Likewise.
	* lang-specs.h: Likewise.
	* libgfortran.h (GFC_STDERR_UNIT_NUMBER): Likewise.
	* match.cc (gfc_match_label): Likewise.
	(gfc_match_symbol): Likewise.
	(match_derived_type_spec): Likewise.
	(copy_ts_from_selector_to_associate): Likewise.
	* match.h (gfc_match_call): Likewise.
	(gfc_get_common): Likewise.
	(gfc_match_omp_end_single): Likewise.
	(gfc_match_volatile): Likewise.
	(gfc_match_bind_c): Likewise.
	(gfc_match_literal_constant): Likewise.
	(gfc_match_init_expr): Likewise.
	(gfc_match_array_constructor): Likewise.
	(gfc_match_end_interface): Likewise.
	(gfc_match_print): Likewise.
	(gfc_match_expr): Likewise.
	* matchexp.cc (next_operator): Likewise.
	* mathbuiltins.def: Likewise.
	* module.cc (free_true_name): Likewise.
	* openmp.cc (gfc_resolve_omp_parallel_blocks): Likewise.
	(gfc_omp_save_and_clear_state): Likewise.
	* parse.cc (parse_union): Likewise.
	(set_syms_host_assoc): Likewise.
	* resolve.cc (resolve_actual_arglist): Likewise.
	(resolve_elemental_actual): Likewise.
	(check_host_association): Likewise.
	(resolve_typebound_function): Likewise.
	(resolve_typebound_subroutine): Likewise.
	(gfc_resolve_expr): Likewise.
	(resolve_assoc_var): Likewise.
	(resolve_typebound_procedures): Likewise.
	(resolve_equivalence_derived): Likewise.
	* simplify.cc (simplify_bound): Likewise.
	* symbol.cc (gfc_set_default_type): Likewise.
	(gfc_add_ext_attribute): Likewise.
	* target-memory.cc (gfc_target_interpret_expr): Likewise.
	* target-memory.h (gfc_target_interpret_expr): Likewise.
	* trans-array.cc (gfc_get_cfi_dim_sm): Likewise.
	(gfc_conv_shift_descriptor_lbound): Likewise.
	(gfc_could_be_alias): Likewise.
	(gfc_get_dataptr_offset): Likewise.
	* trans-const.cc: Likewise.
	* trans-decl.cc (trans_function_start): Likewise.
	(gfc_trans_deferred_vars): Likewise.
	(generate_local_decl): Likewise.
	(gfc_generate_function_code): Likewise.
	* trans-expr.cc (gfc_vptr_size_get): Likewise.
	(gfc_trans_class_array_init_assign): Likewise.
	(POWI_TABLE_SIZE): Likewise.
	(gfc_conv_procedure_call): Likewise.
	(gfc_trans_arrayfunc_assign): Likewise.
	* trans-intrinsic.cc (gfc_conv_intrinsic_len): Likewise.
	(gfc_conv_intrinsic_loc): Likewise.
	(conv_intrinsic_event_query): Likewise.
	* trans-io.cc (gfc_build_st_parameter): Likewise.
	* trans-openmp.cc (gfc_omp_check_optional_argument): Likewise.
	(gfc_omp_unshare_expr_r): Likewise.
	(gfc_trans_omp_array_section): Likewise.
	(gfc_trans_omp_clauses): Likewise.
	* trans-stmt.cc (trans_associate_var): Likewise.
	(gfc_trans_deallocate): Likewise.
	* trans-stmt.h (gfc_trans_class_init_assign): Likewise.
	(gfc_trans_deallocate): Likewise.
	(gfc_trans_oacc_declare): Likewise.
	* trans-types.cc: Likewise.
	* trans-types.h (enum gfc_packed): Likewise.
	* trans.cc (N_): Likewise.
	(trans_code): Likewise.
	* trans.h (gfc_build_compare_string): Likewise.
	(gfc_conv_expr_type): Likewise.
	(gfc_trans_deferred_vars): Likewise.
	(getdecls): Likewise.
	(gfc_get_array_descr_info): Likewise.
	(gfc_omp_firstprivatize_type_sizes): Likewise.
	(GTY): Likewise.

gcc/go/ChangeLog:

	* config-lang.in: Rename .c names to .cc.
	* go-backend.cc: Likewise.
	* go-lang.cc: Likewise.
	* gospec.cc: Likewise.
	* lang-specs.h: Likewise.

gcc/jit/ChangeLog:

	* config-lang.in: Rename .c names to .cc.
	* docs/_build/texinfo/libgccjit.texi: Likewise.
	* docs/internals/index.rst: Likewise.
	* jit-builtins.cc (builtins_manager::make_builtin_function): Likewise.
	* jit-playback.cc (fold_const_var): Likewise.
	(playback::context::~context): Likewise.
	(new_field): Likewise.
	(new_bitfield): Likewise.
	(new_compound_type): Likewise.
	(playback::compound_type::set_fields): Likewise.
	(global_set_init_rvalue): Likewise.
	(load_blob_in_ctor): Likewise.
	(new_global_initialized): Likewise.
	(double>): Likewise.
	(new_string_literal): Likewise.
	(as_truth_value): Likewise.
	(build_call): Likewise.
	(playback::context::build_cast): Likewise.
	(new_array_access): Likewise.
	(new_field_access): Likewise.
	(dereference): Likewise.
	(postprocess): Likewise.
	(add_jump): Likewise.
	(add_switch): Likewise.
	(build_goto_operands): Likewise.
	(playback::context::read_dump_file): Likewise.
	(init_types): Likewise.
	* jit-recording.cc (recording::context::get_int_type): Likewise.
	* jit-recording.h: Likewise.
	* libgccjit.cc (compatible_types): Likewise.
	(gcc_jit_context_acquire): Likewise.
	(gcc_jit_context_release): Likewise.
	(gcc_jit_context_new_child_context): Likewise.
	(gcc_jit_type_as_object): Likewise.
	(gcc_jit_context_get_type): Likewise.
	(gcc_jit_context_get_int_type): Likewise.
	(gcc_jit_type_get_pointer): Likewise.
	(gcc_jit_type_get_const): Likewise.
	(gcc_jit_type_get_volatile): Likewise.
	(gcc_jit_type_dyncast_array): Likewise.
	(gcc_jit_type_is_bool): Likewise.
	(gcc_jit_type_is_pointer): Likewise.
	(gcc_jit_type_is_integral): Likewise.
	(gcc_jit_type_dyncast_vector): Likewise.
	(gcc_jit_type_is_struct): Likewise.
	(gcc_jit_vector_type_get_num_units): Likewise.
	(gcc_jit_vector_type_get_element_type): Likewise.
	(gcc_jit_type_unqualified): Likewise.
	(gcc_jit_type_dyncast_function_ptr_type): Likewise.
	(gcc_jit_function_type_get_return_type): Likewise.
	(gcc_jit_function_type_get_param_count): Likewise.
	(gcc_jit_function_type_get_param_type): Likewise.
	(gcc_jit_context_new_array_type): Likewise.
	(gcc_jit_context_new_field): Likewise.
	(gcc_jit_field_as_object): Likewise.
	(gcc_jit_context_new_struct_type): Likewise.
	(gcc_jit_struct_as_type): Likewise.
	(gcc_jit_struct_set_fields): Likewise.
	(gcc_jit_struct_get_field_count): Likewise.
	(gcc_jit_context_new_union_type): Likewise.
	(gcc_jit_context_new_function_ptr_type): Likewise.
	(gcc_jit_param_as_rvalue): Likewise.
	(gcc_jit_context_new_function): Likewise.
	(gcc_jit_function_get_return_type): Likewise.
	(gcc_jit_function_dump_to_dot): Likewise.
	(gcc_jit_block_get_function): Likewise.
	(gcc_jit_global_set_initializer_rvalue): Likewise.
	(gcc_jit_rvalue_get_type): Likewise.
	(gcc_jit_context_new_rvalue_from_int): Likewise.
	(gcc_jit_context_one): Likewise.
	(gcc_jit_context_new_rvalue_from_double): Likewise.
	(gcc_jit_context_null): Likewise.
	(gcc_jit_context_new_string_literal): Likewise.
	(valid_binary_op_p): Likewise.
	(gcc_jit_context_new_binary_op): Likewise.
	(gcc_jit_context_new_comparison): Likewise.
	(gcc_jit_context_new_call): Likewise.
	(is_valid_cast): Likewise.
	(gcc_jit_context_new_cast): Likewise.
	(gcc_jit_object_get_context): Likewise.
	(gcc_jit_object_get_debug_string): Likewise.
	(gcc_jit_lvalue_access_field): Likewise.
	(gcc_jit_rvalue_access_field): Likewise.
	(gcc_jit_rvalue_dereference_field): Likewise.
	(gcc_jit_rvalue_dereference): Likewise.
	(gcc_jit_lvalue_get_address): Likewise.
	(gcc_jit_lvalue_set_tls_model): Likewise.
	(gcc_jit_lvalue_set_link_section): Likewise.
	(gcc_jit_function_new_local): Likewise.
	(gcc_jit_block_add_eval): Likewise.
	(gcc_jit_block_add_assignment): Likewise.
	(is_bool): Likewise.
	(gcc_jit_block_end_with_conditional): Likewise.
	(gcc_jit_block_add_comment): Likewise.
	(gcc_jit_block_end_with_jump): Likewise.
	(gcc_jit_block_end_with_return): Likewise.
	(gcc_jit_block_end_with_void_return): Likewise.
	(case_range_validator::case_range_validator): Likewise.
	(case_range_validator::validate): Likewise.
	(case_range_validator::get_wide_int): Likewise.
	(gcc_jit_block_end_with_switch): Likewise.
	(gcc_jit_context_set_str_option): Likewise.
	(gcc_jit_context_set_int_option): Likewise.
	(gcc_jit_context_set_bool_option): Likewise.
	(gcc_jit_context_set_bool_allow_unreachable_blocks): Likewise.
	(gcc_jit_context_set_bool_use_external_driver): Likewise.
	(gcc_jit_context_add_command_line_option): Likewise.
	(gcc_jit_context_add_driver_option): Likewise.
	(gcc_jit_context_enable_dump): Likewise.
	(gcc_jit_context_compile): Likewise.
	(gcc_jit_context_compile_to_file): Likewise.
	(gcc_jit_context_set_logfile): Likewise.
	(gcc_jit_context_dump_reproducer_to_file): Likewise.
	(gcc_jit_context_get_first_error): Likewise.
	(gcc_jit_context_get_last_error): Likewise.
	(gcc_jit_result_get_code): Likewise.
	(gcc_jit_result_get_global): Likewise.
	(gcc_jit_rvalue_set_bool_require_tail_call): Likewise.
	(gcc_jit_type_get_aligned): Likewise.
	(gcc_jit_type_get_vector): Likewise.
	(gcc_jit_function_get_address): Likewise.
	(gcc_jit_version_patchlevel): Likewise.
	(gcc_jit_block_add_extended_asm): Likewise.
	(gcc_jit_extended_asm_as_object): Likewise.
	(gcc_jit_extended_asm_set_volatile_flag): Likewise.
	(gcc_jit_extended_asm_set_inline_flag): Likewise.
	(gcc_jit_extended_asm_add_output_operand): Likewise.
	(gcc_jit_extended_asm_add_input_operand): Likewise.
	(gcc_jit_extended_asm_add_clobber): Likewise.
	* notes.txt: Likewise.

gcc/lto/ChangeLog:

	* config-lang.in: Rename .c names to .cc.
	* lang-specs.h: Likewise.
	* lto-common.cc (gimple_register_canonical_type_1): Likewise.
	* lto-common.h: Likewise.
	* lto-dump.cc (lto_main): Likewise.
	* lto-lang.cc (handle_fnspec_attribute): Likewise.
	(lto_getdecls): Likewise.
	(lto_init): Likewise.
	* lto.cc (lto_main): Likewise.
	* lto.h: Likewise.

gcc/objc/ChangeLog:

	* Make-lang.in: Rename .c names to .cc.
	* config-lang.in: Likewise.
	* lang-specs.h: Likewise.
	* objc-act.cc (objc_build_component_ref): Likewise.
	(objc_copy_binfo): Likewise.
	(lookup_method_in_hash_lists): Likewise.
	(objc_finish_foreach_loop): Likewise.
	* objc-act.h (objc_common_init_ts): Likewise.
	* objc-gnu-runtime-abi-01.cc: Likewise.
	* objc-lang.cc (struct lang_hooks): Likewise.
	* objc-map.cc: Likewise.
	* objc-next-runtime-abi-01.cc (generate_objc_symtab_decl): Likewise.
	* objc-runtime-shared-support.cc: Likewise.
	* objc-runtime-shared-support.h (build_protocol_initializer): Likewise.

gcc/objcp/ChangeLog:

	* Make-lang.in: Rename .c names to .cc.
	* config-lang.in: Likewise.
	* lang-specs.h: Likewise.
	* objcp-decl.cc (objcp_end_compound_stmt): Likewise.
	* objcp-lang.cc (struct lang_hooks): Likewise.

gcc/po/ChangeLog:

	* EXCLUDES: Rename .c names to .cc.

libcpp/ChangeLog:

	* Makefile.in: Rename .c names to .cc.
	* charset.cc (convert_escape): Likewise.
	* directives.cc (directive_diagnostics): Likewise.
	(_cpp_handle_directive): Likewise.
	(lex_macro_node): Likewise.
	* include/cpplib.h (struct _cpp_file): Likewise.
	(PURE_ZERO): Likewise.
	(cpp_defined): Likewise.
	(cpp_error_at): Likewise.
	(cpp_forall_identifiers): Likewise.
	(cpp_compare_macros): Likewise.
	(cpp_get_converted_source): Likewise.
	(cpp_read_state): Likewise.
	(cpp_directive_only_process): Likewise.
	(struct cpp_decoded_char): Likewise.
	* include/line-map.h (enum lc_reason): Likewise.
	(enum location_aspect): Likewise.
	* include/mkdeps.h: Likewise.
	* init.cc (cpp_destroy): Likewise.
	(cpp_finish): Likewise.
	* internal.h (struct cpp_reader): Likewise.
	(_cpp_defined_macro_p): Likewise.
	(_cpp_backup_tokens_direct): Likewise.
	(_cpp_destroy_hashtable): Likewise.
	(_cpp_has_header): Likewise.
	(_cpp_expand_op_stack): Likewise.
	(_cpp_commit_buff): Likewise.
	(_cpp_restore_special_builtin): Likewise.
	(_cpp_bracket_include): Likewise.
	(_cpp_replacement_text_len): Likewise.
	(ufputs): Likewise.
	* line-map.cc (linemap_macro_loc_to_exp_point): Likewise.
	(linemap_check_files_exited): Likewise.
	(line_map_new_raw): Likewise.
	* traditional.cc (enum ls): Likewise.

gcc/ada/ChangeLog:

	* adadecode.c: Moved to...
	* adadecode.cc: ...here.
	* affinity.c: Moved to...
	* affinity.cc: ...here.
	* argv-lynxos178-raven-cert.c: Moved to...
	* argv-lynxos178-raven-cert.cc: ...here.
	* argv.c: Moved to...
	* argv.cc: ...here.
	* aux-io.c: Moved to...
	* aux-io.cc: ...here.
	* cio.c: Moved to...
	* cio.cc: ...here.
	* cstreams.c: Moved to...
	* cstreams.cc: ...here.
	* env.c: Moved to...
	* env.cc: ...here.
	* exit.c: Moved to...
	* exit.cc: ...here.
	* expect.c: Moved to...
	* expect.cc: ...here.
	* final.c: Moved to...
	* final.cc: ...here.
	* gcc-interface/cuintp.c: Moved to...
	* gcc-interface/cuintp.cc: ...here.
	* gcc-interface/decl.c: Moved to...
	* gcc-interface/decl.cc: ...here.
	* gcc-interface/misc.c: Moved to...
	* gcc-interface/misc.cc: ...here.
	* gcc-interface/targtyps.c: Moved to...
	* gcc-interface/targtyps.cc: ...here.
	* gcc-interface/trans.c: Moved to...
	* gcc-interface/trans.cc: ...here.
	* gcc-interface/utils.c: Moved to...
	* gcc-interface/utils.cc: ...here.
	* gcc-interface/utils2.c: Moved to...
	* gcc-interface/utils2.cc: ...here.
	* init.c: Moved to...
	* init.cc: ...here.
	* initialize.c: Moved to...
	* initialize.cc: ...here.
	* libgnarl/thread.c: Moved to...
	* libgnarl/thread.cc: ...here.
	* link.c: Moved to...
	* link.cc: ...here.
	* locales.c: Moved to...
	* locales.cc: ...here.
	* mkdir.c: Moved to...
	* mkdir.cc: ...here.
	* raise.c: Moved to...
	* raise.cc: ...here.
	* rtfinal.c: Moved to...
	* rtfinal.cc: ...here.
	* rtinit.c: Moved to...
	* rtinit.cc: ...here.
	* seh_init.c: Moved to...
	* seh_init.cc: ...here.
	* sigtramp-armdroid.c: Moved to...
	* sigtramp-armdroid.cc: ...here.
	* sigtramp-ios.c: Moved to...
	* sigtramp-ios.cc: ...here.
	* sigtramp-qnx.c: Moved to...
	* sigtramp-qnx.cc: ...here.
	* sigtramp-vxworks.c: Moved to...
	* sigtramp-vxworks.cc: ...here.
	* socket.c: Moved to...
	* socket.cc: ...here.
	* tracebak.c: Moved to...
	* tracebak.cc: ...here.
	* version.c: Moved to...
	* version.cc: ...here.
	* vx_stack_info.c: Moved to...
	* vx_stack_info.cc: ...here.

gcc/ChangeLog:

	* adjust-alignment.c: Moved to...
	* adjust-alignment.cc: ...here.
	* alias.c: Moved to...
	* alias.cc: ...here.
	* alloc-pool.c: Moved to...
	* alloc-pool.cc: ...here.
	* asan.c: Moved to...
	* asan.cc: ...here.
	* attribs.c: Moved to...
	* attribs.cc: ...here.
	* auto-inc-dec.c: Moved to...
	* auto-inc-dec.cc: ...here.
	* auto-profile.c: Moved to...
	* auto-profile.cc: ...here.
	* bb-reorder.c: Moved to...
	* bb-reorder.cc: ...here.
	* bitmap.c: Moved to...
	* bitmap.cc: ...here.
	* btfout.c: Moved to...
	* btfout.cc: ...here.
	* builtins.c: Moved to...
	* builtins.cc: ...here.
	* caller-save.c: Moved to...
	* caller-save.cc: ...here.
	* calls.c: Moved to...
	* calls.cc: ...here.
	* ccmp.c: Moved to...
	* ccmp.cc: ...here.
	* cfg.c: Moved to...
	* cfg.cc: ...here.
	* cfganal.c: Moved to...
	* cfganal.cc: ...here.
	* cfgbuild.c: Moved to...
	* cfgbuild.cc: ...here.
	* cfgcleanup.c: Moved to...
	* cfgcleanup.cc: ...here.
	* cfgexpand.c: Moved to...
	* cfgexpand.cc: ...here.
	* cfghooks.c: Moved to...
	* cfghooks.cc: ...here.
	* cfgloop.c: Moved to...
	* cfgloop.cc: ...here.
	* cfgloopanal.c: Moved to...
	* cfgloopanal.cc: ...here.
	* cfgloopmanip.c: Moved to...
	* cfgloopmanip.cc: ...here.
	* cfgrtl.c: Moved to...
	* cfgrtl.cc: ...here.
	* cgraph.c: Moved to...
	* cgraph.cc: ...here.
	* cgraphbuild.c: Moved to...
	* cgraphbuild.cc: ...here.
	* cgraphclones.c: Moved to...
	* cgraphclones.cc: ...here.
	* cgraphunit.c: Moved to...
	* cgraphunit.cc: ...here.
	* collect-utils.c: Moved to...
	* collect-utils.cc: ...here.
	* collect2-aix.c: Moved to...
	* collect2-aix.cc: ...here.
	* collect2.c: Moved to...
	* collect2.cc: ...here.
	* combine-stack-adj.c: Moved to...
	* combine-stack-adj.cc: ...here.
	* combine.c: Moved to...
	* combine.cc: ...here.
	* common/common-targhooks.c: Moved to...
	* common/common-targhooks.cc: ...here.
	* common/config/aarch64/aarch64-common.c: Moved to...
	* common/config/aarch64/aarch64-common.cc: ...here.
	* common/config/alpha/alpha-common.c: Moved to...
	* common/config/alpha/alpha-common.cc: ...here.
	* common/config/arc/arc-common.c: Moved to...
	* common/config/arc/arc-common.cc: ...here.
	* common/config/arm/arm-common.c: Moved to...
	* common/config/arm/arm-common.cc: ...here.
	* common/config/avr/avr-common.c: Moved to...
	* common/config/avr/avr-common.cc: ...here.
	* common/config/bfin/bfin-common.c: Moved to...
	* common/config/bfin/bfin-common.cc: ...here.
	* common/config/bpf/bpf-common.c: Moved to...
	* common/config/bpf/bpf-common.cc: ...here.
	* common/config/c6x/c6x-common.c: Moved to...
	* common/config/c6x/c6x-common.cc: ...here.
	* common/config/cr16/cr16-common.c: Moved to...
	* common/config/cr16/cr16-common.cc: ...here.
	* common/config/cris/cris-common.c: Moved to...
	* common/config/cris/cris-common.cc: ...here.
	* common/config/csky/csky-common.c: Moved to...
	* common/config/csky/csky-common.cc: ...here.
	* common/config/default-common.c: Moved to...
	* common/config/default-common.cc: ...here.
	* common/config/epiphany/epiphany-common.c: Moved to...
	* common/config/epiphany/epiphany-common.cc: ...here.
	* common/config/fr30/fr30-common.c: Moved to...
	* common/config/fr30/fr30-common.cc: ...here.
	* common/config/frv/frv-common.c: Moved to...
	* common/config/frv/frv-common.cc: ...here.
	* common/config/gcn/gcn-common.c: Moved to...
	* common/config/gcn/gcn-common.cc: ...here.
	* common/config/h8300/h8300-common.c: Moved to...
	* common/config/h8300/h8300-common.cc: ...here.
	* common/config/i386/i386-common.c: Moved to...
	* common/config/i386/i386-common.cc: ...here.
	* common/config/ia64/ia64-common.c: Moved to...
	* common/config/ia64/ia64-common.cc: ...here.
	* common/config/iq2000/iq2000-common.c: Moved to...
	* common/config/iq2000/iq2000-common.cc: ...here.
	* common/config/lm32/lm32-common.c: Moved to...
	* common/config/lm32/lm32-common.cc: ...here.
	* common/config/m32r/m32r-common.c: Moved to...
	* common/config/m32r/m32r-common.cc: ...here.
	* common/config/m68k/m68k-common.c: Moved to...
	* common/config/m68k/m68k-common.cc: ...here.
	* common/config/mcore/mcore-common.c: Moved to...
	* common/config/mcore/mcore-common.cc: ...here.
	* common/config/microblaze/microblaze-common.c: Moved to...
	* common/config/microblaze/microblaze-common.cc: ...here.
	* common/config/mips/mips-common.c: Moved to...
	* common/config/mips/mips-common.cc: ...here.
	* common/config/mmix/mmix-common.c: Moved to...
	* common/config/mmix/mmix-common.cc: ...here.
	* common/config/mn10300/mn10300-common.c: Moved to...
	* common/config/mn10300/mn10300-common.cc: ...here.
	* common/config/msp430/msp430-common.c: Moved to...
	* common/config/msp430/msp430-common.cc: ...here.
	* common/config/nds32/nds32-common.c: Moved to...
	* common/config/nds32/nds32-common.cc: ...here.
	* common/config/nios2/nios2-common.c: Moved to...
	* common/config/nios2/nios2-common.cc: ...here.
	* common/config/nvptx/nvptx-common.c: Moved to...
	* common/config/nvptx/nvptx-common.cc: ...here.
	* common/config/or1k/or1k-common.c: Moved to...
	* common/config/or1k/or1k-common.cc: ...here.
	* common/config/pa/pa-common.c: Moved to...
	* common/config/pa/pa-common.cc: ...here.
	* common/config/pdp11/pdp11-common.c: Moved to...
	* common/config/pdp11/pdp11-common.cc: ...here.
	* common/config/pru/pru-common.c: Moved to...
	* common/config/pru/pru-common.cc: ...here.
	* common/config/riscv/riscv-common.c: Moved to...
	* common/config/riscv/riscv-common.cc: ...here.
	* common/config/rs6000/rs6000-common.c: Moved to...
	* common/config/rs6000/rs6000-common.cc: ...here.
	* common/config/rx/rx-common.c: Moved to...
	* common/config/rx/rx-common.cc: ...here.
	* common/config/s390/s390-common.c: Moved to...
	* common/config/s390/s390-common.cc: ...here.
	* common/config/sh/sh-common.c: Moved to...
	* common/config/sh/sh-common.cc: ...here.
	* common/config/sparc/sparc-common.c: Moved to...
	* common/config/sparc/sparc-common.cc: ...here.
	* common/config/tilegx/tilegx-common.c: Moved to...
	* common/config/tilegx/tilegx-common.cc: ...here.
	* common/config/tilepro/tilepro-common.c: Moved to...
	* common/config/tilepro/tilepro-common.cc: ...here.
	* common/config/v850/v850-common.c: Moved to...
	* common/config/v850/v850-common.cc: ...here.
	* common/config/vax/vax-common.c: Moved to...
	* common/config/vax/vax-common.cc: ...here.
	* common/config/visium/visium-common.c: Moved to...
	* common/config/visium/visium-common.cc: ...here.
	* common/config/xstormy16/xstormy16-common.c: Moved to...
	* common/config/xstormy16/xstormy16-common.cc: ...here.
	* common/config/xtensa/xtensa-common.c: Moved to...
	* common/config/xtensa/xtensa-common.cc: ...here.
	* compare-elim.c: Moved to...
	* compare-elim.cc: ...here.
	* config/aarch64/aarch64-bti-insert.c: Moved to...
	* config/aarch64/aarch64-bti-insert.cc: ...here.
	* config/aarch64/aarch64-builtins.c: Moved to...
	* config/aarch64/aarch64-builtins.cc: ...here.
	* config/aarch64/aarch64-c.c: Moved to...
	* config/aarch64/aarch64-c.cc: ...here.
	* config/aarch64/aarch64-d.c: Moved to...
	* config/aarch64/aarch64-d.cc: ...here.
	* config/aarch64/aarch64.c: Moved to...
	* config/aarch64/aarch64.cc: ...here.
	* config/aarch64/cortex-a57-fma-steering.c: Moved to...
	* config/aarch64/cortex-a57-fma-steering.cc: ...here.
	* config/aarch64/driver-aarch64.c: Moved to...
	* config/aarch64/driver-aarch64.cc: ...here.
	* config/aarch64/falkor-tag-collision-avoidance.c: Moved to...
	* config/aarch64/falkor-tag-collision-avoidance.cc: ...here.
	* config/aarch64/host-aarch64-darwin.c: Moved to...
	* config/aarch64/host-aarch64-darwin.cc: ...here.
	* config/alpha/alpha.c: Moved to...
	* config/alpha/alpha.cc: ...here.
	* config/alpha/driver-alpha.c: Moved to...
	* config/alpha/driver-alpha.cc: ...here.
	* config/arc/arc-c.c: Moved to...
	* config/arc/arc-c.cc: ...here.
	* config/arc/arc.c: Moved to...
	* config/arc/arc.cc: ...here.
	* config/arc/driver-arc.c: Moved to...
	* config/arc/driver-arc.cc: ...here.
	* config/arm/aarch-common.c: Moved to...
	* config/arm/aarch-common.cc: ...here.
	* config/arm/arm-builtins.c: Moved to...
	* config/arm/arm-builtins.cc: ...here.
	* config/arm/arm-c.c: Moved to...
	* config/arm/arm-c.cc: ...here.
	* config/arm/arm-d.c: Moved to...
	* config/arm/arm-d.cc: ...here.
	* config/arm/arm.c: Moved to...
	* config/arm/arm.cc: ...here.
	* config/arm/driver-arm.c: Moved to...
	* config/arm/driver-arm.cc: ...here.
	* config/avr/avr-c.c: Moved to...
	* config/avr/avr-c.cc: ...here.
	* config/avr/avr-devices.c: Moved to...
	* config/avr/avr-devices.cc: ...here.
	* config/avr/avr-log.c: Moved to...
	* config/avr/avr-log.cc: ...here.
	* config/avr/avr.c: Moved to...
	* config/avr/avr.cc: ...here.
	* config/avr/driver-avr.c: Moved to...
	* config/avr/driver-avr.cc: ...here.
	* config/avr/gen-avr-mmcu-specs.c: Moved to...
	* config/avr/gen-avr-mmcu-specs.cc: ...here.
	* config/avr/gen-avr-mmcu-texi.c: Moved to...
	* config/avr/gen-avr-mmcu-texi.cc: ...here.
	* config/bfin/bfin.c: Moved to...
	* config/bfin/bfin.cc: ...here.
	* config/bpf/bpf.c: Moved to...
	* config/bpf/bpf.cc: ...here.
	* config/bpf/coreout.c: Moved to...
	* config/bpf/coreout.cc: ...here.
	* config/c6x/c6x.c: Moved to...
	* config/c6x/c6x.cc: ...here.
	* config/cr16/cr16.c: Moved to...
	* config/cr16/cr16.cc: ...here.
	* config/cris/cris.c: Moved to...
	* config/cris/cris.cc: ...here.
	* config/csky/csky.c: Moved to...
	* config/csky/csky.cc: ...here.
	* config/darwin-c.c: Moved to...
	* config/darwin-c.cc: ...here.
	* config/darwin-d.c: Moved to...
	* config/darwin-d.cc: ...here.
	* config/darwin-driver.c: Moved to...
	* config/darwin-driver.cc: ...here.
	* config/darwin-f.c: Moved to...
	* config/darwin-f.cc: ...here.
	* config/darwin.c: Moved to...
	* config/darwin.cc: ...here.
	* config/default-c.c: Moved to...
	* config/default-c.cc: ...here.
	* config/default-d.c: Moved to...
	* config/default-d.cc: ...here.
	* config/dragonfly-d.c: Moved to...
	* config/dragonfly-d.cc: ...here.
	* config/epiphany/epiphany.c: Moved to...
	* config/epiphany/epiphany.cc: ...here.
	* config/epiphany/mode-switch-use.c: Moved to...
	* config/epiphany/mode-switch-use.cc: ...here.
	* config/epiphany/resolve-sw-modes.c: Moved to...
	* config/epiphany/resolve-sw-modes.cc: ...here.
	* config/fr30/fr30.c: Moved to...
	* config/fr30/fr30.cc: ...here.
	* config/freebsd-d.c: Moved to...
	* config/freebsd-d.cc: ...here.
	* config/frv/frv.c: Moved to...
	* config/frv/frv.cc: ...here.
	* config/ft32/ft32.c: Moved to...
	* config/ft32/ft32.cc: ...here.
	* config/gcn/driver-gcn.c: Moved to...
	* config/gcn/driver-gcn.cc: ...here.
	* config/gcn/gcn-run.c: Moved to...
	* config/gcn/gcn-run.cc: ...here.
	* config/gcn/gcn-tree.c: Moved to...
	* config/gcn/gcn-tree.cc: ...here.
	* config/gcn/gcn.c: Moved to...
	* config/gcn/gcn.cc: ...here.
	* config/gcn/mkoffload.c: Moved to...
	* config/gcn/mkoffload.cc: ...here.
	* config/glibc-c.c: Moved to...
	* config/glibc-c.cc: ...here.
	* config/glibc-d.c: Moved to...
	* config/glibc-d.cc: ...here.
	* config/h8300/h8300.c: Moved to...
	* config/h8300/h8300.cc: ...here.
	* config/host-darwin.c: Moved to...
	* config/host-darwin.cc: ...here.
	* config/host-hpux.c: Moved to...
	* config/host-hpux.cc: ...here.
	* config/host-linux.c: Moved to...
	* config/host-linux.cc: ...here.
	* config/host-netbsd.c: Moved to...
	* config/host-netbsd.cc: ...here.
	* config/host-openbsd.c: Moved to...
	* config/host-openbsd.cc: ...here.
	* config/host-solaris.c: Moved to...
	* config/host-solaris.cc: ...here.
	* config/i386/djgpp.c: Moved to...
	* config/i386/djgpp.cc: ...here.
	* config/i386/driver-i386.c: Moved to...
	* config/i386/driver-i386.cc: ...here.
	* config/i386/driver-mingw32.c: Moved to...
	* config/i386/driver-mingw32.cc: ...here.
	* config/i386/gnu-property.c: Moved to...
	* config/i386/gnu-property.cc: ...here.
	* config/i386/host-cygwin.c: Moved to...
	* config/i386/host-cygwin.cc: ...here.
	* config/i386/host-i386-darwin.c: Moved to...
	* config/i386/host-i386-darwin.cc: ...here.
	* config/i386/host-mingw32.c: Moved to...
	* config/i386/host-mingw32.cc: ...here.
	* config/i386/i386-builtins.c: Moved to...
	* config/i386/i386-builtins.cc: ...here.
	* config/i386/i386-c.c: Moved to...
	* config/i386/i386-c.cc: ...here.
	* config/i386/i386-d.c: Moved to...
	* config/i386/i386-d.cc: ...here.
	* config/i386/i386-expand.c: Moved to...
	* config/i386/i386-expand.cc: ...here.
	* config/i386/i386-features.c: Moved to...
	* config/i386/i386-features.cc: ...here.
	* config/i386/i386-options.c: Moved to...
	* config/i386/i386-options.cc: ...here.
	* config/i386/i386.c: Moved to...
	* config/i386/i386.cc: ...here.
	* config/i386/intelmic-mkoffload.c: Moved to...
	* config/i386/intelmic-mkoffload.cc: ...here.
	* config/i386/msformat-c.c: Moved to...
	* config/i386/msformat-c.cc: ...here.
	* config/i386/winnt-cxx.c: Moved to...
	* config/i386/winnt-cxx.cc: ...here.
	* config/i386/winnt-d.c: Moved to...
	* config/i386/winnt-d.cc: ...here.
	* config/i386/winnt-stubs.c: Moved to...
	* config/i386/winnt-stubs.cc: ...here.
	* config/i386/winnt.c: Moved to...
	* config/i386/winnt.cc: ...here.
	* config/i386/x86-tune-sched-atom.c: Moved to...
	* config/i386/x86-tune-sched-atom.cc: ...here.
	* config/i386/x86-tune-sched-bd.c: Moved to...
	* config/i386/x86-tune-sched-bd.cc: ...here.
	* config/i386/x86-tune-sched-core.c: Moved to...
	* config/i386/x86-tune-sched-core.cc: ...here.
	* config/i386/x86-tune-sched.c: Moved to...
	* config/i386/x86-tune-sched.cc: ...here.
	* config/ia64/ia64-c.c: Moved to...
	* config/ia64/ia64-c.cc: ...here.
	* config/ia64/ia64.c: Moved to...
	* config/ia64/ia64.cc: ...here.
	* config/iq2000/iq2000.c: Moved to...
	* config/iq2000/iq2000.cc: ...here.
	* config/linux.c: Moved to...
	* config/linux.cc: ...here.
	* config/lm32/lm32.c: Moved to...
	* config/lm32/lm32.cc: ...here.
	* config/m32c/m32c-pragma.c: Moved to...
	* config/m32c/m32c-pragma.cc: ...here.
	* config/m32c/m32c.c: Moved to...
	* config/m32c/m32c.cc: ...here.
	* config/m32r/m32r.c: Moved to...
	* config/m32r/m32r.cc: ...here.
	* config/m68k/m68k.c: Moved to...
	* config/m68k/m68k.cc: ...here.
	* config/mcore/mcore.c: Moved to...
	* config/mcore/mcore.cc: ...here.
	* config/microblaze/microblaze-c.c: Moved to...
	* config/microblaze/microblaze-c.cc: ...here.
	* config/microblaze/microblaze.c: Moved to...
	* config/microblaze/microblaze.cc: ...here.
	* config/mips/driver-native.c: Moved to...
	* config/mips/driver-native.cc: ...here.
	* config/mips/frame-header-opt.c: Moved to...
	* config/mips/frame-header-opt.cc: ...here.
	* config/mips/mips-d.c: Moved to...
	* config/mips/mips-d.cc: ...here.
	* config/mips/mips.c: Moved to...
	* config/mips/mips.cc: ...here.
	* config/mmix/mmix.c: Moved to...
	* config/mmix/mmix.cc: ...here.
	* config/mn10300/mn10300.c: Moved to...
	* config/mn10300/mn10300.cc: ...here.
	* config/moxie/moxie.c: Moved to...
	* config/moxie/moxie.cc: ...here.
	* config/msp430/driver-msp430.c: Moved to...
	* config/msp430/driver-msp430.cc: ...here.
	* config/msp430/msp430-c.c: Moved to...
	* config/msp430/msp430-c.cc: ...here.
	* config/msp430/msp430-devices.c: Moved to...
	* config/msp430/msp430-devices.cc: ...here.
	* config/msp430/msp430.c: Moved to...
	* config/msp430/msp430.cc: ...here.
	* config/nds32/nds32-cost.c: Moved to...
	* config/nds32/nds32-cost.cc: ...here.
	* config/nds32/nds32-fp-as-gp.c: Moved to...
	* config/nds32/nds32-fp-as-gp.cc: ...here.
	* config/nds32/nds32-intrinsic.c: Moved to...
	* config/nds32/nds32-intrinsic.cc: ...here.
	* config/nds32/nds32-isr.c: Moved to...
	* config/nds32/nds32-isr.cc: ...here.
	* config/nds32/nds32-md-auxiliary.c: Moved to...
	* config/nds32/nds32-md-auxiliary.cc: ...here.
	* config/nds32/nds32-memory-manipulation.c: Moved to...
	* config/nds32/nds32-memory-manipulation.cc: ...here.
	* config/nds32/nds32-pipelines-auxiliary.c: Moved to...
	* config/nds32/nds32-pipelines-auxiliary.cc: ...here.
	* config/nds32/nds32-predicates.c: Moved to...
	* config/nds32/nds32-predicates.cc: ...here.
	* config/nds32/nds32-relax-opt.c: Moved to...
	* config/nds32/nds32-relax-opt.cc: ...here.
	* config/nds32/nds32-utils.c: Moved to...
	* config/nds32/nds32-utils.cc: ...here.
	* config/nds32/nds32.c: Moved to...
	* config/nds32/nds32.cc: ...here.
	* config/netbsd-d.c: Moved to...
	* config/netbsd-d.cc: ...here.
	* config/netbsd.c: Moved to...
	* config/netbsd.cc: ...here.
	* config/nios2/nios2.c: Moved to...
	* config/nios2/nios2.cc: ...here.
	* config/nvptx/mkoffload.c: Moved to...
	* config/nvptx/mkoffload.cc: ...here.
	* config/nvptx/nvptx-c.c: Moved to...
	* config/nvptx/nvptx-c.cc: ...here.
	* config/nvptx/nvptx.c: Moved to...
	* config/nvptx/nvptx.cc: ...here.
	* config/openbsd-d.c: Moved to...
	* config/openbsd-d.cc: ...here.
	* config/or1k/or1k.c: Moved to...
	* config/or1k/or1k.cc: ...here.
	* config/pa/pa-d.c: Moved to...
	* config/pa/pa-d.cc: ...here.
	* config/pa/pa.c: Moved to...
	* config/pa/pa.cc: ...here.
	* config/pdp11/pdp11.c: Moved to...
	* config/pdp11/pdp11.cc: ...here.
	* config/pru/pru-passes.c: Moved to...
	* config/pru/pru-passes.cc: ...here.
	* config/pru/pru-pragma.c: Moved to...
	* config/pru/pru-pragma.cc: ...here.
	* config/pru/pru.c: Moved to...
	* config/pru/pru.cc: ...here.
	* config/riscv/riscv-builtins.c: Moved to...
	* config/riscv/riscv-builtins.cc: ...here.
	* config/riscv/riscv-c.c: Moved to...
	* config/riscv/riscv-c.cc: ...here.
	* config/riscv/riscv-d.c: Moved to...
	* config/riscv/riscv-d.cc: ...here.
	* config/riscv/riscv-shorten-memrefs.c: Moved to...
	* config/riscv/riscv-shorten-memrefs.cc: ...here.
	* config/riscv/riscv-sr.c: Moved to...
	* config/riscv/riscv-sr.cc: ...here.
	* config/riscv/riscv.c: Moved to...
	* config/riscv/riscv.cc: ...here.
	* config/rl78/rl78-c.c: Moved to...
	* config/rl78/rl78-c.cc: ...here.
	* config/rl78/rl78.c: Moved to...
	* config/rl78/rl78.cc: ...here.
	* config/rs6000/driver-rs6000.c: Moved to...
	* config/rs6000/driver-rs6000.cc: ...here.
	* config/rs6000/host-darwin.c: Moved to...
	* config/rs6000/host-darwin.cc: ...here.
	* config/rs6000/host-ppc64-darwin.c: Moved to...
	* config/rs6000/host-ppc64-darwin.cc: ...here.
	* config/rs6000/rbtree.c: Moved to...
	* config/rs6000/rbtree.cc: ...here.
	* config/rs6000/rs6000-c.c: Moved to...
	* config/rs6000/rs6000-c.cc: ...here.
	* config/rs6000/rs6000-call.c: Moved to...
	* config/rs6000/rs6000-call.cc: ...here.
	* config/rs6000/rs6000-d.c: Moved to...
	* config/rs6000/rs6000-d.cc: ...here.
	* config/rs6000/rs6000-gen-builtins.c: Moved to...
	* config/rs6000/rs6000-gen-builtins.cc: ...here.
	* config/rs6000/rs6000-linux.c: Moved to...
	* config/rs6000/rs6000-linux.cc: ...here.
	* config/rs6000/rs6000-logue.c: Moved to...
	* config/rs6000/rs6000-logue.cc: ...here.
	* config/rs6000/rs6000-p8swap.c: Moved to...
	* config/rs6000/rs6000-p8swap.cc: ...here.
	* config/rs6000/rs6000-pcrel-opt.c: Moved to...
	* config/rs6000/rs6000-pcrel-opt.cc: ...here.
	* config/rs6000/rs6000-string.c: Moved to...
	* config/rs6000/rs6000-string.cc: ...here.
	* config/rs6000/rs6000.c: Moved to...
	* config/rs6000/rs6000.cc: ...here.
	* config/rx/rx.c: Moved to...
	* config/rx/rx.cc: ...here.
	* config/s390/driver-native.c: Moved to...
	* config/s390/driver-native.cc: ...here.
	* config/s390/s390-c.c: Moved to...
	* config/s390/s390-c.cc: ...here.
	* config/s390/s390-d.c: Moved to...
	* config/s390/s390-d.cc: ...here.
	* config/s390/s390.c: Moved to...
	* config/s390/s390.cc: ...here.
	* config/sh/divtab-sh4-300.c: Moved to...
	* config/sh/divtab-sh4-300.cc: ...here.
	* config/sh/divtab-sh4.c: Moved to...
	* config/sh/divtab-sh4.cc: ...here.
	* config/sh/divtab.c: Moved to...
	* config/sh/divtab.cc: ...here.
	* config/sh/sh-c.c: Moved to...
	* config/sh/sh-c.cc: ...here.
	* config/sh/sh.c: Moved to...
	* config/sh/sh.cc: ...here.
	* config/sol2-c.c: Moved to...
	* config/sol2-c.cc: ...here.
	* config/sol2-cxx.c: Moved to...
	* config/sol2-cxx.cc: ...here.
	* config/sol2-d.c: Moved to...
	* config/sol2-d.cc: ...here.
	* config/sol2-stubs.c: Moved to...
	* config/sol2-stubs.cc: ...here.
	* config/sol2.c: Moved to...
	* config/sol2.cc: ...here.
	* config/sparc/driver-sparc.c: Moved to...
	* config/sparc/driver-sparc.cc: ...here.
	* config/sparc/sparc-c.c: Moved to...
	* config/sparc/sparc-c.cc: ...here.
	* config/sparc/sparc-d.c: Moved to...
	* config/sparc/sparc-d.cc: ...here.
	* config/sparc/sparc.c: Moved to...
	* config/sparc/sparc.cc: ...here.
	* config/stormy16/stormy16.c: Moved to...
	* config/stormy16/stormy16.cc: ...here.
	* config/tilegx/mul-tables.c: Moved to...
	* config/tilegx/mul-tables.cc: ...here.
	* config/tilegx/tilegx-c.c: Moved to...
	* config/tilegx/tilegx-c.cc: ...here.
	* config/tilegx/tilegx.c: Moved to...
	* config/tilegx/tilegx.cc: ...here.
	* config/tilepro/mul-tables.c: Moved to...
	* config/tilepro/mul-tables.cc: ...here.
	* config/tilepro/tilepro-c.c: Moved to...
	* config/tilepro/tilepro-c.cc: ...here.
	* config/tilepro/tilepro.c: Moved to...
	* config/tilepro/tilepro.cc: ...here.
	* config/v850/v850-c.c: Moved to...
	* config/v850/v850-c.cc: ...here.
	* config/v850/v850.c: Moved to...
	* config/v850/v850.cc: ...here.
	* config/vax/vax.c: Moved to...
	* config/vax/vax.cc: ...here.
	* config/visium/visium.c: Moved to...
	* config/visium/visium.cc: ...here.
	* config/vms/vms-c.c: Moved to...
	* config/vms/vms-c.cc: ...here.
	* config/vms/vms-f.c: Moved to...
	* config/vms/vms-f.cc: ...here.
	* config/vms/vms.c: Moved to...
	* config/vms/vms.cc: ...here.
	* config/vxworks-c.c: Moved to...
	* config/vxworks-c.cc: ...here.
	* config/vxworks.c: Moved to...
	* config/vxworks.cc: ...here.
	* config/winnt-c.c: Moved to...
	* config/winnt-c.cc: ...here.
	* config/xtensa/xtensa.c: Moved to...
	* config/xtensa/xtensa.cc: ...here.
	* context.c: Moved to...
	* context.cc: ...here.
	* convert.c: Moved to...
	* convert.cc: ...here.
	* coverage.c: Moved to...
	* coverage.cc: ...here.
	* cppbuiltin.c: Moved to...
	* cppbuiltin.cc: ...here.
	* cppdefault.c: Moved to...
	* cppdefault.cc: ...here.
	* cprop.c: Moved to...
	* cprop.cc: ...here.
	* cse.c: Moved to...
	* cse.cc: ...here.
	* cselib.c: Moved to...
	* cselib.cc: ...here.
	* ctfc.c: Moved to...
	* ctfc.cc: ...here.
	* ctfout.c: Moved to...
	* ctfout.cc: ...here.
	* data-streamer-in.c: Moved to...
	* data-streamer-in.cc: ...here.
	* data-streamer-out.c: Moved to...
	* data-streamer-out.cc: ...here.
	* data-streamer.c: Moved to...
	* data-streamer.cc: ...here.
	* dbgcnt.c: Moved to...
	* dbgcnt.cc: ...here.
	* dbxout.c: Moved to...
	* dbxout.cc: ...here.
	* dce.c: Moved to...
	* dce.cc: ...here.
	* ddg.c: Moved to...
	* ddg.cc: ...here.
	* debug.c: Moved to...
	* debug.cc: ...here.
	* df-core.c: Moved to...
	* df-core.cc: ...here.
	* df-problems.c: Moved to...
	* df-problems.cc: ...here.
	* df-scan.c: Moved to...
	* df-scan.cc: ...here.
	* dfp.c: Moved to...
	* dfp.cc: ...here.
	* diagnostic-color.c: Moved to...
	* diagnostic-color.cc: ...here.
	* diagnostic-show-locus.c: Moved to...
	* diagnostic-show-locus.cc: ...here.
	* diagnostic-spec.c: Moved to...
	* diagnostic-spec.cc: ...here.
	* diagnostic.c: Moved to...
	* diagnostic.cc: ...here.
	* dojump.c: Moved to...
	* dojump.cc: ...here.
	* dominance.c: Moved to...
	* dominance.cc: ...here.
	* domwalk.c: Moved to...
	* domwalk.cc: ...here.
	* double-int.c: Moved to...
	* double-int.cc: ...here.
	* dse.c: Moved to...
	* dse.cc: ...here.
	* dumpfile.c: Moved to...
	* dumpfile.cc: ...here.
	* dwarf2asm.c: Moved to...
	* dwarf2asm.cc: ...here.
	* dwarf2cfi.c: Moved to...
	* dwarf2cfi.cc: ...here.
	* dwarf2ctf.c: Moved to...
	* dwarf2ctf.cc: ...here.
	* dwarf2out.c: Moved to...
	* dwarf2out.cc: ...here.
	* early-remat.c: Moved to...
	* early-remat.cc: ...here.
	* edit-context.c: Moved to...
	* edit-context.cc: ...here.
	* emit-rtl.c: Moved to...
	* emit-rtl.cc: ...here.
	* errors.c: Moved to...
	* errors.cc: ...here.
	* et-forest.c: Moved to...
	* et-forest.cc: ...here.
	* except.c: Moved to...
	* except.cc: ...here.
	* explow.c: Moved to...
	* explow.cc: ...here.
	* expmed.c: Moved to...
	* expmed.cc: ...here.
	* expr.c: Moved to...
	* expr.cc: ...here.
	* fibonacci_heap.c: Moved to...
	* fibonacci_heap.cc: ...here.
	* file-find.c: Moved to...
	* file-find.cc: ...here.
	* file-prefix-map.c: Moved to...
	* file-prefix-map.cc: ...here.
	* final.c: Moved to...
	* final.cc: ...here.
	* fixed-value.c: Moved to...
	* fixed-value.cc: ...here.
	* fold-const-call.c: Moved to...
	* fold-const-call.cc: ...here.
	* fold-const.c: Moved to...
	* fold-const.cc: ...here.
	* fp-test.c: Moved to...
	* fp-test.cc: ...here.
	* function-tests.c: Moved to...
	* function-tests.cc: ...here.
	* function.c: Moved to...
	* function.cc: ...here.
	* fwprop.c: Moved to...
	* fwprop.cc: ...here.
	* gcc-ar.c: Moved to...
	* gcc-ar.cc: ...here.
	* gcc-main.c: Moved to...
	* gcc-main.cc: ...here.
	* gcc-rich-location.c: Moved to...
	* gcc-rich-location.cc: ...here.
	* gcc.c: Moved to...
	* gcc.cc: ...here.
	* gcov-dump.c: Moved to...
	* gcov-dump.cc: ...here.
	* gcov-io.c: Moved to...
	* gcov-io.cc: ...here.
	* gcov-tool.c: Moved to...
	* gcov-tool.cc: ...here.
	* gcov.c: Moved to...
	* gcov.cc: ...here.
	* gcse-common.c: Moved to...
	* gcse-common.cc: ...here.
	* gcse.c: Moved to...
	* gcse.cc: ...here.
	* genattr-common.c: Moved to...
	* genattr-common.cc: ...here.
	* genattr.c: Moved to...
	* genattr.cc: ...here.
	* genattrtab.c: Moved to...
	* genattrtab.cc: ...here.
	* genautomata.c: Moved to...
	* genautomata.cc: ...here.
	* gencfn-macros.c: Moved to...
	* gencfn-macros.cc: ...here.
	* gencheck.c: Moved to...
	* gencheck.cc: ...here.
	* genchecksum.c: Moved to...
	* genchecksum.cc: ...here.
	* gencodes.c: Moved to...
	* gencodes.cc: ...here.
	* genconditions.c: Moved to...
	* genconditions.cc: ...here.
	* genconfig.c: Moved to...
	* genconfig.cc: ...here.
	* genconstants.c: Moved to...
	* genconstants.cc: ...here.
	* genemit.c: Moved to...
	* genemit.cc: ...here.
	* genenums.c: Moved to...
	* genenums.cc: ...here.
	* generic-match-head.c: Moved to...
	* generic-match-head.cc: ...here.
	* genextract.c: Moved to...
	* genextract.cc: ...here.
	* genflags.c: Moved to...
	* genflags.cc: ...here.
	* gengenrtl.c: Moved to...
	* gengenrtl.cc: ...here.
	* gengtype-parse.c: Moved to...
	* gengtype-parse.cc: ...here.
	* gengtype-state.c: Moved to...
	* gengtype-state.cc: ...here.
	* gengtype.c: Moved to...
	* gengtype.cc: ...here.
	* genhooks.c: Moved to...
	* genhooks.cc: ...here.
	* genmatch.c: Moved to...
	* genmatch.cc: ...here.
	* genmddeps.c: Moved to...
	* genmddeps.cc: ...here.
	* genmddump.c: Moved to...
	* genmddump.cc: ...here.
	* genmodes.c: Moved to...
	* genmodes.cc: ...here.
	* genopinit.c: Moved to...
	* genopinit.cc: ...here.
	* genoutput.c: Moved to...
	* genoutput.cc: ...here.
	* genpeep.c: Moved to...
	* genpeep.cc: ...here.
	* genpreds.c: Moved to...
	* genpreds.cc: ...here.
	* genrecog.c: Moved to...
	* genrecog.cc: ...here.
	* gensupport.c: Moved to...
	* gensupport.cc: ...here.
	* gentarget-def.c: Moved to...
	* gentarget-def.cc: ...here.
	* genversion.c: Moved to...
	* genversion.cc: ...here.
	* ggc-common.c: Moved to...
	* ggc-common.cc: ...here.
	* ggc-none.c: Moved to...
	* ggc-none.cc: ...here.
	* ggc-page.c: Moved to...
	* ggc-page.cc: ...here.
	* ggc-tests.c: Moved to...
	* ggc-tests.cc: ...here.
	* gimple-builder.c: Moved to...
	* gimple-builder.cc: ...here.
	* gimple-expr.c: Moved to...
	* gimple-expr.cc: ...here.
	* gimple-fold.c: Moved to...
	* gimple-fold.cc: ...here.
	* gimple-iterator.c: Moved to...
	* gimple-iterator.cc: ...here.
	* gimple-laddress.c: Moved to...
	* gimple-laddress.cc: ...here.
	* gimple-loop-jam.c: Moved to...
	* gimple-loop-jam.cc: ...here.
	* gimple-low.c: Moved to...
	* gimple-low.cc: ...here.
	* gimple-match-head.c: Moved to...
	* gimple-match-head.cc: ...here.
	* gimple-pretty-print.c: Moved to...
	* gimple-pretty-print.cc: ...here.
	* gimple-ssa-backprop.c: Moved to...
	* gimple-ssa-backprop.cc: ...here.
	* gimple-ssa-evrp-analyze.c: Moved to...
	* gimple-ssa-evrp-analyze.cc: ...here.
	* gimple-ssa-evrp.c: Moved to...
	* gimple-ssa-evrp.cc: ...here.
	* gimple-ssa-isolate-paths.c: Moved to...
	* gimple-ssa-isolate-paths.cc: ...here.
	* gimple-ssa-nonnull-compare.c: Moved to...
	* gimple-ssa-nonnull-compare.cc: ...here.
	* gimple-ssa-split-paths.c: Moved to...
	* gimple-ssa-split-paths.cc: ...here.
	* gimple-ssa-sprintf.c: Moved to...
	* gimple-ssa-sprintf.cc: ...here.
	* gimple-ssa-store-merging.c: Moved to...
	* gimple-ssa-store-merging.cc: ...here.
	* gimple-ssa-strength-reduction.c: Moved to...
	* gimple-ssa-strength-reduction.cc: ...here.
	* gimple-ssa-warn-alloca.c: Moved to...
	* gimple-ssa-warn-alloca.cc: ...here.
	* gimple-ssa-warn-restrict.c: Moved to...
	* gimple-ssa-warn-restrict.cc: ...here.
	* gimple-streamer-in.c: Moved to...
	* gimple-streamer-in.cc: ...here.
	* gimple-streamer-out.c: Moved to...
	* gimple-streamer-out.cc: ...here.
	* gimple-walk.c: Moved to...
	* gimple-walk.cc: ...here.
	* gimple-warn-recursion.c: Moved to...
	* gimple-warn-recursion.cc: ...here.
	* gimple.c: Moved to...
	* gimple.cc: ...here.
	* gimplify-me.c: Moved to...
	* gimplify-me.cc: ...here.
	* gimplify.c: Moved to...
	* gimplify.cc: ...here.
	* godump.c: Moved to...
	* godump.cc: ...here.
	* graph.c: Moved to...
	* graph.cc: ...here.
	* graphds.c: Moved to...
	* graphds.cc: ...here.
	* graphite-dependences.c: Moved to...
	* graphite-dependences.cc: ...here.
	* graphite-isl-ast-to-gimple.c: Moved to...
	* graphite-isl-ast-to-gimple.cc: ...here.
	* graphite-optimize-isl.c: Moved to...
	* graphite-optimize-isl.cc: ...here.
	* graphite-poly.c: Moved to...
	* graphite-poly.cc: ...here.
	* graphite-scop-detection.c: Moved to...
	* graphite-scop-detection.cc: ...here.
	* graphite-sese-to-poly.c: Moved to...
	* graphite-sese-to-poly.cc: ...here.
	* graphite.c: Moved to...
	* graphite.cc: ...here.
	* haifa-sched.c: Moved to...
	* haifa-sched.cc: ...here.
	* hash-map-tests.c: Moved to...
	* hash-map-tests.cc: ...here.
	* hash-set-tests.c: Moved to...
	* hash-set-tests.cc: ...here.
	* hash-table.c: Moved to...
	* hash-table.cc: ...here.
	* hooks.c: Moved to...
	* hooks.cc: ...here.
	* host-default.c: Moved to...
	* host-default.cc: ...here.
	* hw-doloop.c: Moved to...
	* hw-doloop.cc: ...here.
	* hwint.c: Moved to...
	* hwint.cc: ...here.
	* ifcvt.c: Moved to...
	* ifcvt.cc: ...here.
	* inchash.c: Moved to...
	* inchash.cc: ...here.
	* incpath.c: Moved to...
	* incpath.cc: ...here.
	* init-regs.c: Moved to...
	* init-regs.cc: ...here.
	* input.c: Moved to...
	* input.cc: ...here.
	* internal-fn.c: Moved to...
	* internal-fn.cc: ...here.
	* intl.c: Moved to...
	* intl.cc: ...here.
	* ipa-comdats.c: Moved to...
	* ipa-comdats.cc: ...here.
	* ipa-cp.c: Moved to...
	* ipa-cp.cc: ...here.
	* ipa-devirt.c: Moved to...
	* ipa-devirt.cc: ...here.
	* ipa-fnsummary.c: Moved to...
	* ipa-fnsummary.cc: ...here.
	* ipa-icf-gimple.c: Moved to...
	* ipa-icf-gimple.cc: ...here.
	* ipa-icf.c: Moved to...
	* ipa-icf.cc: ...here.
	* ipa-inline-analysis.c: Moved to...
	* ipa-inline-analysis.cc: ...here.
	* ipa-inline-transform.c: Moved to...
	* ipa-inline-transform.cc: ...here.
	* ipa-inline.c: Moved to...
	* ipa-inline.cc: ...here.
	* ipa-modref-tree.c: Moved to...
	* ipa-modref-tree.cc: ...here.
	* ipa-modref.c: Moved to...
	* ipa-modref.cc: ...here.
	* ipa-param-manipulation.c: Moved to...
	* ipa-param-manipulation.cc: ...here.
	* ipa-polymorphic-call.c: Moved to...
	* ipa-polymorphic-call.cc: ...here.
	* ipa-predicate.c: Moved to...
	* ipa-predicate.cc: ...here.
	* ipa-profile.c: Moved to...
	* ipa-profile.cc: ...here.
	* ipa-prop.c: Moved to...
	* ipa-prop.cc: ...here.
	* ipa-pure-const.c: Moved to...
	* ipa-pure-const.cc: ...here.
	* ipa-ref.c: Moved to...
	* ipa-ref.cc: ...here.
	* ipa-reference.c: Moved to...
	* ipa-reference.cc: ...here.
	* ipa-split.c: Moved to...
	* ipa-split.cc: ...here.
	* ipa-sra.c: Moved to...
	* ipa-sra.cc: ...here.
	* ipa-utils.c: Moved to...
	* ipa-utils.cc: ...here.
	* ipa-visibility.c: Moved to...
	* ipa-visibility.cc: ...here.
	* ipa.c: Moved to...
	* ipa.cc: ...here.
	* ira-build.c: Moved to...
	* ira-build.cc: ...here.
	* ira-color.c: Moved to...
	* ira-color.cc: ...here.
	* ira-conflicts.c: Moved to...
	* ira-conflicts.cc: ...here.
	* ira-costs.c: Moved to...
	* ira-costs.cc: ...here.
	* ira-emit.c: Moved to...
	* ira-emit.cc: ...here.
	* ira-lives.c: Moved to...
	* ira-lives.cc: ...here.
	* ira.c: Moved to...
	* ira.cc: ...here.
	* jump.c: Moved to...
	* jump.cc: ...here.
	* langhooks.c: Moved to...
	* langhooks.cc: ...here.
	* lcm.c: Moved to...
	* lcm.cc: ...here.
	* lists.c: Moved to...
	* lists.cc: ...here.
	* loop-doloop.c: Moved to...
	* loop-doloop.cc: ...here.
	* loop-init.c: Moved to...
	* loop-init.cc: ...here.
	* loop-invariant.c: Moved to...
	* loop-invariant.cc: ...here.
	* loop-iv.c: Moved to...
	* loop-iv.cc: ...here.
	* loop-unroll.c: Moved to...
	* loop-unroll.cc: ...here.
	* lower-subreg.c: Moved to...
	* lower-subreg.cc: ...here.
	* lra-assigns.c: Moved to...
	* lra-assigns.cc: ...here.
	* lra-coalesce.c: Moved to...
	* lra-coalesce.cc: ...here.
	* lra-constraints.c: Moved to...
	* lra-constraints.cc: ...here.
	* lra-eliminations.c: Moved to...
	* lra-eliminations.cc: ...here.
	* lra-lives.c: Moved to...
	* lra-lives.cc: ...here.
	* lra-remat.c: Moved to...
	* lra-remat.cc: ...here.
	* lra-spills.c: Moved to...
	* lra-spills.cc: ...here.
	* lra.c: Moved to...
	* lra.cc: ...here.
	* lto-cgraph.c: Moved to...
	* lto-cgraph.cc: ...here.
	* lto-compress.c: Moved to...
	* lto-compress.cc: ...here.
	* lto-opts.c: Moved to...
	* lto-opts.cc: ...here.
	* lto-section-in.c: Moved to...
	* lto-section-in.cc: ...here.
	* lto-section-out.c: Moved to...
	* lto-section-out.cc: ...here.
	* lto-streamer-in.c: Moved to...
	* lto-streamer-in.cc: ...here.
	* lto-streamer-out.c: Moved to...
	* lto-streamer-out.cc: ...here.
	* lto-streamer.c: Moved to...
	* lto-streamer.cc: ...here.
	* lto-wrapper.c: Moved to...
	* lto-wrapper.cc: ...here.
	* main.c: Moved to...
	* main.cc: ...here.
	* mcf.c: Moved to...
	* mcf.cc: ...here.
	* mode-switching.c: Moved to...
	* mode-switching.cc: ...here.
	* modulo-sched.c: Moved to...
	* modulo-sched.cc: ...here.
	* multiple_target.c: Moved to...
	* multiple_target.cc: ...here.
	* omp-expand.c: Moved to...
	* omp-expand.cc: ...here.
	* omp-general.c: Moved to...
	* omp-general.cc: ...here.
	* omp-low.c: Moved to...
	* omp-low.cc: ...here.
	* omp-offload.c: Moved to...
	* omp-offload.cc: ...here.
	* omp-simd-clone.c: Moved to...
	* omp-simd-clone.cc: ...here.
	* opt-suggestions.c: Moved to...
	* opt-suggestions.cc: ...here.
	* optabs-libfuncs.c: Moved to...
	* optabs-libfuncs.cc: ...here.
	* optabs-query.c: Moved to...
	* optabs-query.cc: ...here.
	* optabs-tree.c: Moved to...
	* optabs-tree.cc: ...here.
	* optabs.c: Moved to...
	* optabs.cc: ...here.
	* opts-common.c: Moved to...
	* opts-common.cc: ...here.
	* opts-global.c: Moved to...
	* opts-global.cc: ...here.
	* opts.c: Moved to...
	* opts.cc: ...here.
	* passes.c: Moved to...
	* passes.cc: ...here.
	* plugin.c: Moved to...
	* plugin.cc: ...here.
	* postreload-gcse.c: Moved to...
	* postreload-gcse.cc: ...here.
	* postreload.c: Moved to...
	* postreload.cc: ...here.
	* predict.c: Moved to...
	* predict.cc: ...here.
	* prefix.c: Moved to...
	* prefix.cc: ...here.
	* pretty-print.c: Moved to...
	* pretty-print.cc: ...here.
	* print-rtl-function.c: Moved to...
	* print-rtl-function.cc: ...here.
	* print-rtl.c: Moved to...
	* print-rtl.cc: ...here.
	* print-tree.c: Moved to...
	* print-tree.cc: ...here.
	* profile-count.c: Moved to...
	* profile-count.cc: ...here.
	* profile.c: Moved to...
	* profile.cc: ...here.
	* read-md.c: Moved to...
	* read-md.cc: ...here.
	* read-rtl-function.c: Moved to...
	* read-rtl-function.cc: ...here.
	* read-rtl.c: Moved to...
	* read-rtl.cc: ...here.
	* real.c: Moved to...
	* real.cc: ...here.
	* realmpfr.c: Moved to...
	* realmpfr.cc: ...here.
	* recog.c: Moved to...
	* recog.cc: ...here.
	* ree.c: Moved to...
	* ree.cc: ...here.
	* reg-stack.c: Moved to...
	* reg-stack.cc: ...here.
	* regcprop.c: Moved to...
	* regcprop.cc: ...here.
	* reginfo.c: Moved to...
	* reginfo.cc: ...here.
	* regrename.c: Moved to...
	* regrename.cc: ...here.
	* regstat.c: Moved to...
	* regstat.cc: ...here.
	* reload.c: Moved to...
	* reload.cc: ...here.
	* reload1.c: Moved to...
	* reload1.cc: ...here.
	* reorg.c: Moved to...
	* reorg.cc: ...here.
	* resource.c: Moved to...
	* resource.cc: ...here.
	* rtl-error.c: Moved to...
	* rtl-error.cc: ...here.
	* rtl-tests.c: Moved to...
	* rtl-tests.cc: ...here.
	* rtl.c: Moved to...
	* rtl.cc: ...here.
	* rtlanal.c: Moved to...
	* rtlanal.cc: ...here.
	* rtlhash.c: Moved to...
	* rtlhash.cc: ...here.
	* rtlhooks.c: Moved to...
	* rtlhooks.cc: ...here.
	* rtx-vector-builder.c: Moved to...
	* rtx-vector-builder.cc: ...here.
	* run-rtl-passes.c: Moved to...
	* run-rtl-passes.cc: ...here.
	* sancov.c: Moved to...
	* sancov.cc: ...here.
	* sanopt.c: Moved to...
	* sanopt.cc: ...here.
	* sbitmap.c: Moved to...
	* sbitmap.cc: ...here.
	* sched-deps.c: Moved to...
	* sched-deps.cc: ...here.
	* sched-ebb.c: Moved to...
	* sched-ebb.cc: ...here.
	* sched-rgn.c: Moved to...
	* sched-rgn.cc: ...here.
	* sel-sched-dump.c: Moved to...
	* sel-sched-dump.cc: ...here.
	* sel-sched-ir.c: Moved to...
	* sel-sched-ir.cc: ...here.
	* sel-sched.c: Moved to...
	* sel-sched.cc: ...here.
	* selftest-diagnostic.c: Moved to...
	* selftest-diagnostic.cc: ...here.
	* selftest-rtl.c: Moved to...
	* selftest-rtl.cc: ...here.
	* selftest-run-tests.c: Moved to...
	* selftest-run-tests.cc: ...here.
	* selftest.c: Moved to...
	* selftest.cc: ...here.
	* sese.c: Moved to...
	* sese.cc: ...here.
	* shrink-wrap.c: Moved to...
	* shrink-wrap.cc: ...here.
	* simplify-rtx.c: Moved to...
	* simplify-rtx.cc: ...here.
	* sparseset.c: Moved to...
	* sparseset.cc: ...here.
	* spellcheck-tree.c: Moved to...
	* spellcheck-tree.cc: ...here.
	* spellcheck.c: Moved to...
	* spellcheck.cc: ...here.
	* sreal.c: Moved to...
	* sreal.cc: ...here.
	* stack-ptr-mod.c: Moved to...
	* stack-ptr-mod.cc: ...here.
	* statistics.c: Moved to...
	* statistics.cc: ...here.
	* stmt.c: Moved to...
	* stmt.cc: ...here.
	* stor-layout.c: Moved to...
	* stor-layout.cc: ...here.
	* store-motion.c: Moved to...
	* store-motion.cc: ...here.
	* streamer-hooks.c: Moved to...
	* streamer-hooks.cc: ...here.
	* stringpool.c: Moved to...
	* stringpool.cc: ...here.
	* substring-locations.c: Moved to...
	* substring-locations.cc: ...here.
	* symtab.c: Moved to...
	* symtab.cc: ...here.
	* target-globals.c: Moved to...
	* target-globals.cc: ...here.
	* targhooks.c: Moved to...
	* targhooks.cc: ...here.
	* timevar.c: Moved to...
	* timevar.cc: ...here.
	* toplev.c: Moved to...
	* toplev.cc: ...here.
	* tracer.c: Moved to...
	* tracer.cc: ...here.
	* trans-mem.c: Moved to...
	* trans-mem.cc: ...here.
	* tree-affine.c: Moved to...
	* tree-affine.cc: ...here.
	* tree-call-cdce.c: Moved to...
	* tree-call-cdce.cc: ...here.
	* tree-cfg.c: Moved to...
	* tree-cfg.cc: ...here.
	* tree-cfgcleanup.c: Moved to...
	* tree-cfgcleanup.cc: ...here.
	* tree-chrec.c: Moved to...
	* tree-chrec.cc: ...here.
	* tree-complex.c: Moved to...
	* tree-complex.cc: ...here.
	* tree-data-ref.c: Moved to...
	* tree-data-ref.cc: ...here.
	* tree-dfa.c: Moved to...
	* tree-dfa.cc: ...here.
	* tree-diagnostic.c: Moved to...
	* tree-diagnostic.cc: ...here.
	* tree-dump.c: Moved to...
	* tree-dump.cc: ...here.
	* tree-eh.c: Moved to...
	* tree-eh.cc: ...here.
	* tree-emutls.c: Moved to...
	* tree-emutls.cc: ...here.
	* tree-if-conv.c: Moved to...
	* tree-if-conv.cc: ...here.
	* tree-inline.c: Moved to...
	* tree-inline.cc: ...here.
	* tree-into-ssa.c: Moved to...
	* tree-into-ssa.cc: ...here.
	* tree-iterator.c: Moved to...
	* tree-iterator.cc: ...here.
	* tree-loop-distribution.c: Moved to...
	* tree-loop-distribution.cc: ...here.
	* tree-nested.c: Moved to...
	* tree-nested.cc: ...here.
	* tree-nrv.c: Moved to...
	* tree-nrv.cc: ...here.
	* tree-object-size.c: Moved to...
	* tree-object-size.cc: ...here.
	* tree-outof-ssa.c: Moved to...
	* tree-outof-ssa.cc: ...here.
	* tree-parloops.c: Moved to...
	* tree-parloops.cc: ...here.
	* tree-phinodes.c: Moved to...
	* tree-phinodes.cc: ...here.
	* tree-predcom.c: Moved to...
	* tree-predcom.cc: ...here.
	* tree-pretty-print.c: Moved to...
	* tree-pretty-print.cc: ...here.
	* tree-profile.c: Moved to...
	* tree-profile.cc: ...here.
	* tree-scalar-evolution.c: Moved to...
	* tree-scalar-evolution.cc: ...here.
	* tree-sra.c: Moved to...
	* tree-sra.cc: ...here.
	* tree-ssa-address.c: Moved to...
	* tree-ssa-address.cc: ...here.
	* tree-ssa-alias.c: Moved to...
	* tree-ssa-alias.cc: ...here.
	* tree-ssa-ccp.c: Moved to...
	* tree-ssa-ccp.cc: ...here.
	* tree-ssa-coalesce.c: Moved to...
	* tree-ssa-coalesce.cc: ...here.
	* tree-ssa-copy.c: Moved to...
	* tree-ssa-copy.cc: ...here.
	* tree-ssa-dce.c: Moved to...
	* tree-ssa-dce.cc: ...here.
	* tree-ssa-dom.c: Moved to...
	* tree-ssa-dom.cc: ...here.
	* tree-ssa-dse.c: Moved to...
	* tree-ssa-dse.cc: ...here.
	* tree-ssa-forwprop.c: Moved to...
	* tree-ssa-forwprop.cc: ...here.
	* tree-ssa-ifcombine.c: Moved to...
	* tree-ssa-ifcombine.cc: ...here.
	* tree-ssa-live.c: Moved to...
	* tree-ssa-live.cc: ...here.
	* tree-ssa-loop-ch.c: Moved to...
	* tree-ssa-loop-ch.cc: ...here.
	* tree-ssa-loop-im.c: Moved to...
	* tree-ssa-loop-im.cc: ...here.
	* tree-ssa-loop-ivcanon.c: Moved to...
	* tree-ssa-loop-ivcanon.cc: ...here.
	* tree-ssa-loop-ivopts.c: Moved to...
	* tree-ssa-loop-ivopts.cc: ...here.
	* tree-ssa-loop-manip.c: Moved to...
	* tree-ssa-loop-manip.cc: ...here.
	* tree-ssa-loop-niter.c: Moved to...
	* tree-ssa-loop-niter.cc: ...here.
	* tree-ssa-loop-prefetch.c: Moved to...
	* tree-ssa-loop-prefetch.cc: ...here.
	* tree-ssa-loop-split.c: Moved to...
	* tree-ssa-loop-split.cc: ...here.
	* tree-ssa-loop-unswitch.c: Moved to...
	* tree-ssa-loop-unswitch.cc: ...here.
	* tree-ssa-loop.c: Moved to...
	* tree-ssa-loop.cc: ...here.
	* tree-ssa-math-opts.c: Moved to...
	* tree-ssa-math-opts.cc: ...here.
	* tree-ssa-operands.c: Moved to...
	* tree-ssa-operands.cc: ...here.
	* tree-ssa-phiopt.c: Moved to...
	* tree-ssa-phiopt.cc: ...here.
	* tree-ssa-phiprop.c: Moved to...
	* tree-ssa-phiprop.cc: ...here.
	* tree-ssa-pre.c: Moved to...
	* tree-ssa-pre.cc: ...here.
	* tree-ssa-propagate.c: Moved to...
	* tree-ssa-propagate.cc: ...here.
	* tree-ssa-reassoc.c: Moved to...
	* tree-ssa-reassoc.cc: ...here.
	* tree-ssa-sccvn.c: Moved to...
	* tree-ssa-sccvn.cc: ...here.
	* tree-ssa-scopedtables.c: Moved to...
	* tree-ssa-scopedtables.cc: ...here.
	* tree-ssa-sink.c: Moved to...
	* tree-ssa-sink.cc: ...here.
	* tree-ssa-strlen.c: Moved to...
	* tree-ssa-strlen.cc: ...here.
	* tree-ssa-structalias.c: Moved to...
	* tree-ssa-structalias.cc: ...here.
	* tree-ssa-tail-merge.c: Moved to...
	* tree-ssa-tail-merge.cc: ...here.
	* tree-ssa-ter.c: Moved to...
	* tree-ssa-ter.cc: ...here.
	* tree-ssa-threadbackward.c: Moved to...
	* tree-ssa-threadbackward.cc: ...here.
	* tree-ssa-threadedge.c: Moved to...
	* tree-ssa-threadedge.cc: ...here.
	* tree-ssa-threadupdate.c: Moved to...
	* tree-ssa-threadupdate.cc: ...here.
	* tree-ssa-uncprop.c: Moved to...
	* tree-ssa-uncprop.cc: ...here.
	* tree-ssa-uninit.c: Moved to...
	* tree-ssa-uninit.cc: ...here.
	* tree-ssa.c: Moved to...
	* tree-ssa.cc: ...here.
	* tree-ssanames.c: Moved to...
	* tree-ssanames.cc: ...here.
	* tree-stdarg.c: Moved to...
	* tree-stdarg.cc: ...here.
	* tree-streamer-in.c: Moved to...
	* tree-streamer-in.cc: ...here.
	* tree-streamer-out.c: Moved to...
	* tree-streamer-out.cc: ...here.
	* tree-streamer.c: Moved to...
	* tree-streamer.cc: ...here.
	* tree-switch-conversion.c: Moved to...
	* tree-switch-conversion.cc: ...here.
	* tree-tailcall.c: Moved to...
	* tree-tailcall.cc: ...here.
	* tree-vect-data-refs.c: Moved to...
	* tree-vect-data-refs.cc: ...here.
	* tree-vect-generic.c: Moved to...
	* tree-vect-generic.cc: ...here.
	* tree-vect-loop-manip.c: Moved to...
	* tree-vect-loop-manip.cc: ...here.
	* tree-vect-loop.c: Moved to...
	* tree-vect-loop.cc: ...here.
	* tree-vect-patterns.c: Moved to...
	* tree-vect-patterns.cc: ...here.
	* tree-vect-slp-patterns.c: Moved to...
	* tree-vect-slp-patterns.cc: ...here.
	* tree-vect-slp.c: Moved to...
	* tree-vect-slp.cc: ...here.
	* tree-vect-stmts.c: Moved to...
	* tree-vect-stmts.cc: ...here.
	* tree-vector-builder.c: Moved to...
	* tree-vector-builder.cc: ...here.
	* tree-vectorizer.c: Moved to...
	* tree-vectorizer.cc: ...here.
	* tree-vrp.c: Moved to...
	* tree-vrp.cc: ...here.
	* tree.c: Moved to...
	* tree.cc: ...here.
	* tsan.c: Moved to...
	* tsan.cc: ...here.
	* typed-splay-tree.c: Moved to...
	* typed-splay-tree.cc: ...here.
	* ubsan.c: Moved to...
	* ubsan.cc: ...here.
	* valtrack.c: Moved to...
	* valtrack.cc: ...here.
	* value-prof.c: Moved to...
	* value-prof.cc: ...here.
	* var-tracking.c: Moved to...
	* var-tracking.cc: ...here.
	* varasm.c: Moved to...
	* varasm.cc: ...here.
	* varpool.c: Moved to...
	* varpool.cc: ...here.
	* vec-perm-indices.c: Moved to...
	* vec-perm-indices.cc: ...here.
	* vec.c: Moved to...
	* vec.cc: ...here.
	* vmsdbgout.c: Moved to...
	* vmsdbgout.cc: ...here.
	* vr-values.c: Moved to...
	* vr-values.cc: ...here.
	* vtable-verify.c: Moved to...
	* vtable-verify.cc: ...here.
	* web.c: Moved to...
	* web.cc: ...here.
	* xcoffout.c: Moved to...
	* xcoffout.cc: ...here.

gcc/c-family/ChangeLog:

	* c-ada-spec.c: Moved to...
	* c-ada-spec.cc: ...here.
	* c-attribs.c: Moved to...
	* c-attribs.cc: ...here.
	* c-common.c: Moved to...
	* c-common.cc: ...here.
	* c-cppbuiltin.c: Moved to...
	* c-cppbuiltin.cc: ...here.
	* c-dump.c: Moved to...
	* c-dump.cc: ...here.
	* c-format.c: Moved to...
	* c-format.cc: ...here.
	* c-gimplify.c: Moved to...
	* c-gimplify.cc: ...here.
	* c-indentation.c: Moved to...
	* c-indentation.cc: ...here.
	* c-lex.c: Moved to...
	* c-lex.cc: ...here.
	* c-omp.c: Moved to...
	* c-omp.cc: ...here.
	* c-opts.c: Moved to...
	* c-opts.cc: ...here.
	* c-pch.c: Moved to...
	* c-pch.cc: ...here.
	* c-ppoutput.c: Moved to...
	* c-ppoutput.cc: ...here.
	* c-pragma.c: Moved to...
	* c-pragma.cc: ...here.
	* c-pretty-print.c: Moved to...
	* c-pretty-print.cc: ...here.
	* c-semantics.c: Moved to...
	* c-semantics.cc: ...here.
	* c-ubsan.c: Moved to...
	* c-ubsan.cc: ...here.
	* c-warn.c: Moved to...
	* c-warn.cc: ...here.
	* cppspec.c: Moved to...
	* cppspec.cc: ...here.
	* stub-objc.c: Moved to...
	* stub-objc.cc: ...here.

gcc/c/ChangeLog:

	* c-aux-info.c: Moved to...
	* c-aux-info.cc: ...here.
	* c-convert.c: Moved to...
	* c-convert.cc: ...here.
	* c-decl.c: Moved to...
	* c-decl.cc: ...here.
	* c-errors.c: Moved to...
	* c-errors.cc: ...here.
	* c-fold.c: Moved to...
	* c-fold.cc: ...here.
	* c-lang.c: Moved to...
	* c-lang.cc: ...here.
	* c-objc-common.c: Moved to...
	* c-objc-common.cc: ...here.
	* c-parser.c: Moved to...
	* c-parser.cc: ...here.
	* c-typeck.c: Moved to...
	* c-typeck.cc: ...here.
	* gccspec.c: Moved to...
	* gccspec.cc: ...here.
	* gimple-parser.c: Moved to...
	* gimple-parser.cc: ...here.

gcc/cp/ChangeLog:

	* call.c: Moved to...
	* call.cc: ...here.
	* class.c: Moved to...
	* class.cc: ...here.
	* constexpr.c: Moved to...
	* constexpr.cc: ...here.
	* cp-gimplify.c: Moved to...
	* cp-gimplify.cc: ...here.
	* cp-lang.c: Moved to...
	* cp-lang.cc: ...here.
	* cp-objcp-common.c: Moved to...
	* cp-objcp-common.cc: ...here.
	* cp-ubsan.c: Moved to...
	* cp-ubsan.cc: ...here.
	* cvt.c: Moved to...
	* cvt.cc: ...here.
	* cxx-pretty-print.c: Moved to...
	* cxx-pretty-print.cc: ...here.
	* decl.c: Moved to...
	* decl.cc: ...here.
	* decl2.c: Moved to...
	* decl2.cc: ...here.
	* dump.c: Moved to...
	* dump.cc: ...here.
	* error.c: Moved to...
	* error.cc: ...here.
	* except.c: Moved to...
	* except.cc: ...here.
	* expr.c: Moved to...
	* expr.cc: ...here.
	* friend.c: Moved to...
	* friend.cc: ...here.
	* g++spec.c: Moved to...
	* g++spec.cc: ...here.
	* init.c: Moved to...
	* init.cc: ...here.
	* lambda.c: Moved to...
	* lambda.cc: ...here.
	* lex.c: Moved to...
	* lex.cc: ...here.
	* mangle.c: Moved to...
	* mangle.cc: ...here.
	* method.c: Moved to...
	* method.cc: ...here.
	* name-lookup.c: Moved to...
	* name-lookup.cc: ...here.
	* optimize.c: Moved to...
	* optimize.cc: ...here.
	* parser.c: Moved to...
	* parser.cc: ...here.
	* pt.c: Moved to...
	* pt.cc: ...here.
	* ptree.c: Moved to...
	* ptree.cc: ...here.
	* rtti.c: Moved to...
	* rtti.cc: ...here.
	* search.c: Moved to...
	* search.cc: ...here.
	* semantics.c: Moved to...
	* semantics.cc: ...here.
	* tree.c: Moved to...
	* tree.cc: ...here.
	* typeck.c: Moved to...
	* typeck.cc: ...here.
	* typeck2.c: Moved to...
	* typeck2.cc: ...here.
	* vtable-class-hierarchy.c: Moved to...
	* vtable-class-hierarchy.cc: ...here.

gcc/fortran/ChangeLog:

	* arith.c: Moved to...
	* arith.cc: ...here.
	* array.c: Moved to...
	* array.cc: ...here.
	* bbt.c: Moved to...
	* bbt.cc: ...here.
	* check.c: Moved to...
	* check.cc: ...here.
	* class.c: Moved to...
	* class.cc: ...here.
	* constructor.c: Moved to...
	* constructor.cc: ...here.
	* convert.c: Moved to...
	* convert.cc: ...here.
	* cpp.c: Moved to...
	* cpp.cc: ...here.
	* data.c: Moved to...
	* data.cc: ...here.
	* decl.c: Moved to...
	* decl.cc: ...here.
	* dependency.c: Moved to...
	* dependency.cc: ...here.
	* dump-parse-tree.c: Moved to...
	* dump-parse-tree.cc: ...here.
	* error.c: Moved to...
	* error.cc: ...here.
	* expr.c: Moved to...
	* expr.cc: ...here.
	* f95-lang.c: Moved to...
	* f95-lang.cc: ...here.
	* frontend-passes.c: Moved to...
	* frontend-passes.cc: ...here.
	* gfortranspec.c: Moved to...
	* gfortranspec.cc: ...here.
	* interface.c: Moved to...
	* interface.cc: ...here.
	* intrinsic.c: Moved to...
	* intrinsic.cc: ...here.
	* io.c: Moved to...
	* io.cc: ...here.
	* iresolve.c: Moved to...
	* iresolve.cc: ...here.
	* match.c: Moved to...
	* match.cc: ...here.
	* matchexp.c: Moved to...
	* matchexp.cc: ...here.
	* misc.c: Moved to...
	* misc.cc: ...here.
	* module.c: Moved to...
	* module.cc: ...here.
	* openmp.c: Moved to...
	* openmp.cc: ...here.
	* options.c: Moved to...
	* options.cc: ...here.
	* parse.c: Moved to...
	* parse.cc: ...here.
	* primary.c: Moved to...
	* primary.cc: ...here.
	* resolve.c: Moved to...
	* resolve.cc: ...here.
	* scanner.c: Moved to...
	* scanner.cc: ...here.
	* simplify.c: Moved to...
	* simplify.cc: ...here.
	* st.c: Moved to...
	* st.cc: ...here.
	* symbol.c: Moved to...
	* symbol.cc: ...here.
	* target-memory.c: Moved to...
	* target-memory.cc: ...here.
	* trans-array.c: Moved to...
	* trans-array.cc: ...here.
	* trans-common.c: Moved to...
	* trans-common.cc: ...here.
	* trans-const.c: Moved to...
	* trans-const.cc: ...here.
	* trans-decl.c: Moved to...
	* trans-decl.cc: ...here.
	* trans-expr.c: Moved to...
	* trans-expr.cc: ...here.
	* trans-intrinsic.c: Moved to...
	* trans-intrinsic.cc: ...here.
	* trans-io.c: Moved to...
	* trans-io.cc: ...here.
	* trans-openmp.c: Moved to...
	* trans-openmp.cc: ...here.
	* trans-stmt.c: Moved to...
	* trans-stmt.cc: ...here.
	* trans-types.c: Moved to...
	* trans-types.cc: ...here.
	* trans.c: Moved to...
	* trans.cc: ...here.

gcc/go/ChangeLog:

	* go-backend.c: Moved to...
	* go-backend.cc: ...here.
	* go-lang.c: Moved to...
	* go-lang.cc: ...here.
	* gospec.c: Moved to...
	* gospec.cc: ...here.

gcc/jit/ChangeLog:

	* dummy-frontend.c: Moved to...
	* dummy-frontend.cc: ...here.
	* jit-builtins.c: Moved to...
	* jit-builtins.cc: ...here.
	* jit-logging.c: Moved to...
	* jit-logging.cc: ...here.
	* jit-playback.c: Moved to...
	* jit-playback.cc: ...here.
	* jit-recording.c: Moved to...
	* jit-recording.cc: ...here.
	* jit-result.c: Moved to...
	* jit-result.cc: ...here.
	* jit-spec.c: Moved to...
	* jit-spec.cc: ...here.
	* jit-tempdir.c: Moved to...
	* jit-tempdir.cc: ...here.
	* jit-w32.c: Moved to...
	* jit-w32.cc: ...here.
	* libgccjit.c: Moved to...
	* libgccjit.cc: ...here.

gcc/lto/ChangeLog:

	* common.c: Moved to...
	* common.cc: ...here.
	* lto-common.c: Moved to...
	* lto-common.cc: ...here.
	* lto-dump.c: Moved to...
	* lto-dump.cc: ...here.
	* lto-lang.c: Moved to...
	* lto-lang.cc: ...here.
	* lto-object.c: Moved to...
	* lto-object.cc: ...here.
	* lto-partition.c: Moved to...
	* lto-partition.cc: ...here.
	* lto-symtab.c: Moved to...
	* lto-symtab.cc: ...here.
	* lto.c: Moved to...
	* lto.cc: ...here.

gcc/objc/ChangeLog:

	* objc-act.c: Moved to...
	* objc-act.cc: ...here.
	* objc-encoding.c: Moved to...
	* objc-encoding.cc: ...here.
	* objc-gnu-runtime-abi-01.c: Moved to...
	* objc-gnu-runtime-abi-01.cc: ...here.
	* objc-lang.c: Moved to...
	* objc-lang.cc: ...here.
	* objc-map.c: Moved to...
	* objc-map.cc: ...here.
	* objc-next-runtime-abi-01.c: Moved to...
	* objc-next-runtime-abi-01.cc: ...here.
	* objc-next-runtime-abi-02.c: Moved to...
	* objc-next-runtime-abi-02.cc: ...here.
	* objc-runtime-shared-support.c: Moved to...
	* objc-runtime-shared-support.cc: ...here.

gcc/objcp/ChangeLog:

	* objcp-decl.c: Moved to...
	* objcp-decl.cc: ...here.
	* objcp-lang.c: Moved to...
	* objcp-lang.cc: ...here.

libcpp/ChangeLog:

	* charset.c: Moved to...
	* charset.cc: ...here.
	* directives.c: Moved to...
	* directives.cc: ...here.
	* errors.c: Moved to...
	* errors.cc: ...here.
	* expr.c: Moved to...
	* expr.cc: ...here.
	* files.c: Moved to...
	* files.cc: ...here.
	* identifiers.c: Moved to...
	* identifiers.cc: ...here.
	* init.c: Moved to...
	* init.cc: ...here.
	* lex.c: Moved to...
	* lex.cc: ...here.
	* line-map.c: Moved to...
	* line-map.cc: ...here.
	* macro.c: Moved to...
	* macro.cc: ...here.
	* makeucnid.c: Moved to...
	* makeucnid.cc: ...here.
	* mkdeps.c: Moved to...
	* mkdeps.cc: ...here.
	* pch.c: Moved to...
	* pch.cc: ...here.
	* symtab.c: Moved to...
	* symtab.cc: ...here.
	* traditional.c: Moved to...
	* traditional.cc: ...here.

Currently, the 3rd parameter of function .DEFERRED_INIT is IS_VLA, which is
not needed at all;

In this patch, we change the 3rd parameter from IS_VLA to the name of the var
decl for the following purposes:

1. Fix (or work around) PR103720:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103720

As confirmed in PR103720, with the current definition of .DEFERRED_INIT,

Dom transformed:
  c$a$0_6 = .DEFERRED_INIT (8, 2, 0);
  _1 = .DEFERRED_INIT (8, 2, 0);

into:
  c$a$0_6 = .DEFERRED_INIT (8, 2, 0);
  _1 = c$a$0_6;

which is incorrectly done due to Dom treating the two calls to const function
.DEFERRED_INIT as the same call since all actual parameters are the same.

The same issue has been exposed in PR102608 due to a different optimization VN,
the fix for PR102608 is to specially handle call to .DEFERRED_INIT in VN to
exclude it from CSE.

To fix PR103720, we could do the same as the fix to PR102608 to specially
handle call to .DEFERRED_INIT in Dom to exclude it from being optimized.

However, in addition to Dom and VN, there should be other optimizations that
have the same issue as PR103720 or PR102608 (As I built Linux kernel with
-ftrivial-auto-var-init=zero -Werror, I noticed a bunch of bugos warnings).

Other than identifying all the optimizations and specially handling call to
.DEFERRED_INIT in all these optimizations, changing the 3rd parameter of the
function .DEFERRED_INIT from IS_VLA to the name string of the var decl might
be a better workaround (or a fix). After this change, since the 3rd actual
parameter is the name string of the variable, different calls for different
variables will have different name strings as the 3rd actual, As a result, the
optimization that previously treated the different calls to .DEFERRED_INIT as
the same will be prevented.

2. Prepare for enabling -Wuninitialized + -ftrivail-auto-var-init for address
taken variables.

As discussion in the following thread:

https://gcc.gnu.org/pipermail/gcc-patches/2021-August/577431.html

With the current implemenation of -ftrivial-auto-var-init and uninitialized
warning analysis, the uninitialized warning for an address taken auto variable
might be missed since the variable is completely eliminated by optimization and
replaced with a temporary variable in all the uses.

In order to improve such situation, changing the 3rd parameter of the function
.DEFERRED_INIT to the name string of the variable will provide necessary
information to uninitialized warning analysis to make the missing warning
possible.

gcc/ChangeLog:

2022-01-11  qing zhao  <qing.zhao@oracle.com>

	* gimplify.c (gimple_add_init_for_auto_var): Delete the 3rd argument.
	Change the 3rd argument of function .DEFERRED_INIT to the name of the
	decl.
	(gimplify_decl_expr): Delete the 3rd argument when call
	gimple_add_init_for_auto_var.
	* internal-fn.c (expand_DEFERRED_INIT): Update comments to reflect
	the 3rd argument change of function .DEFERRED_INIT.
	* tree-cfg.c (verify_gimple_call): Update comments and verification
	to reflect the 3rd argument change of function .DEFERRED_INIT.
	* tree-sra.c (generate_subtree_deferred_init): Delete the 3rd argument.
	(sra_modify_deferred_init): Change the 3rd argument of function
	.DEFERRED_INIT to the name of the decl.

gcc/testsuite/ChangeLog:

2022-01-11  qing zhao  <qing.zhao@oracle.com>

	* c-c++-common/auto-init-1.c: Adjust testcase to reflect the 3rd
	argument change of function .DEFERRED_INIT.
	* c-c++-common/auto-init-10.c: Likewise.
	* c-c++-common/auto-init-11.c: Likewise.
	* c-c++-common/auto-init-12.c: Likewise.
	* c-c++-common/auto-init-13.c: Likewise.
	* c-c++-common/auto-init-14.c: Likewise.
	* c-c++-common/auto-init-15.c: Likewise.
	* c-c++-common/auto-init-16.c: Likewise.
	* c-c++-common/auto-init-2.c: Likewise.
	* c-c++-common/auto-init-3.c: Likewise.
	* c-c++-common/auto-init-4.c: Likewise.
	* c-c++-common/auto-init-5.c: Likewise.
	* c-c++-common/auto-init-6.c: Likewise.
	* c-c++-common/auto-init-7.c: Likewise.
	* c-c++-common/auto-init-8.c: Likewise.
	* c-c++-common/auto-init-9.c: Likewise.
	* c-c++-common/auto-init-esra.c: Likewise.
	* c-c++-common/auto-init-padding-1.c: Likewise.
	* gcc.target/aarch64/auto-init-2.c: Likewise.

After the PR90030 patch, which removes the universal casting of all Fortran
array pointers to 'c_char*', a Fortran descriptor based array passed into an
affinity() clause now looks like:

-     #pragma omp task private(i) shared(b) affinity(*(c_char *) a.data)
+     #pragma omp task private(i) shared(b) affinity(*(integer(kind=4)[0:] * restrict) a.data)

The 'integer(kind=4)[0:]' incomplete type appears to be causing ICE during
gimplify_expr() due to 'is_gimple_val, fb_rvalue'. The ICE appears to be fixed
just by adjusting to 'is_gimple_lvalue, fb_lvalue'. Considering the use of the
affinity() clause, which should be specifying the location of a particular
object in memory, this probably makes sense.

gcc/ChangeLog:

	PR middle-end/103643

	* gimplify.c (gimplify_omp_affinity): Adjust gimplify_expr of entire
	OMP_CLAUSE_DECL to use 'is_gimple_lvalue, fb_lvalue'

gcc/testsuite/ChangeLog:

	* gfortran.dg/gomp/pr103643.f90: New test.

This patch implements three pieces of functionality:

(1) Adjust array section mapping to have standards conforming behavior,
mapping array sections should *NOT* also map the base-pointer:

struct S { int *ptr; ... };
struct S s;

Instead of generating this during gimplify:
                              map(to:*_1 [len: 400]) map(attach:s.ptr [bias: 0])

Now, adjust to:

(i.e. do not map the base-pointer together. The attach operation is still
generated, and if s.ptr is already mapped prior, attachment will happen)

The correct way of achieving the base-pointer-also-mapped behavior would be to
use:

(A small Fortran front-end patch to trans-openmp.c:gfc_trans_omp_array_section
 is also included, which removes generation of a GOMP_MAP_ALWAYS_POINTER for
 array types, which appears incorrect and causes a regression in
 libgomp.fortranlibgomp.fortran/struct-elem-map-1.f90)

(2) Related to the first item above, are fixes in libgomp/target.c to not
overwrite attached pointers when handling device<->host copies, mainly for the
"always" case.

(3) The third is a set of changes to the C/C++ front-ends to extend the allowed
component access syntax in map clauses. These changes are enabled for both
OpenACC and OpenMP.

gcc/c/ChangeLog:

	* c-parser.c (struct omp_dim): New struct type for use inside
	c_parser_omp_variable_list.
	(c_parser_omp_variable_list): Allow multiple levels of array and
	component accesses in array section base-pointer expression.
	(c_parser_omp_clause_to): Set 'allow_deref' to true in call to
	c_parser_omp_var_list_parens.
	(c_parser_omp_clause_from): Likewise.
	* c-typeck.c (handle_omp_array_sections_1): Extend allowed range
	of base-pointer expressions involving INDIRECT/MEM/ARRAY_REF and
	POINTER_PLUS_EXPR.
	(c_finish_omp_clauses): Extend allowed ranged of expressions
	involving INDIRECT/MEM/ARRAY_REF and POINTER_PLUS_EXPR.

gcc/cp/ChangeLog:

	* parser.c (struct omp_dim): New struct type for use inside
	cp_parser_omp_var_list_no_open.
	(cp_parser_omp_var_list_no_open): Allow multiple levels of array and
	component accesses in array section base-pointer expression.
	(cp_parser_omp_all_clauses): Set 'allow_deref' to true in call to
	cp_parser_omp_var_list for to/from clauses.
	* semantics.c (handle_omp_array_sections_1): Extend allowed range
	of base-pointer expressions involving INDIRECT/MEM/ARRAY_REF and
	POINTER_PLUS_EXPR.
	(handle_omp_array_sections): Adjust pointer map generation of
	references.
	(finish_omp_clauses): Extend allowed ranged of expressions
	involving INDIRECT/MEM/ARRAY_REF and POINTER_PLUS_EXPR.

gcc/fortran/ChangeLog:

	* trans-openmp.c (gfc_trans_omp_array_section): Do not generate
	GOMP_MAP_ALWAYS_POINTER map for main array maps of ARRAY_TYPE type.

gcc/ChangeLog:

	* gimplify.c (extract_base_bit_offset): Add 'tree *offsetp' parameter,
	accomodate case where 'offset' return of get_inner_reference is
	non-NULL.
	(is_or_contains_p): Further robustify conditions.
	(omp_target_reorder_clauses): In alloc/to/from sorting phase, also
	move following GOMP_MAP_ALWAYS_POINTER maps along.  Add new sorting
	phase where we make sure pointers with an attach/detach map are ordered
	correctly.
	(gimplify_scan_omp_clauses): Add modifications to avoid creating
	GOMP_MAP_STRUCT and associated alloc map for attach/detach maps.

gcc/testsuite/ChangeLog:

	* c-c++-common/goacc/deep-copy-arrayofstruct.c: Adjust testcase.
	* c-c++-common/gomp/target-enter-data-1.c: New testcase.
	* c-c++-common/gomp/target-implicit-map-2.c: New testcase.

libgomp/ChangeLog:

	* target.c (gomp_map_vars_existing): Make sure attached pointer is
	not overwritten during cross-host/device copying.
	(gomp_update): Likewise.
	(gomp_exit_data): Likewise.
	* testsuite/libgomp.c++/target-11.C: Adjust testcase.
	* testsuite/libgomp.c++/target-12.C: Likewise.
	* testsuite/libgomp.c++/target-15.C: Likewise.
	* testsuite/libgomp.c++/target-16.C: Likewise.
	* testsuite/libgomp.c++/target-17.C: Likewise.
	* testsuite/libgomp.c++/target-21.C: Likewise.
	* testsuite/libgomp.c++/target-23.C: Likewise.
	* testsuite/libgomp.c/target-23.c: Likewise.
	* testsuite/libgomp.c/target-29.c: Likewise.
	* testsuite/libgomp.c-c++-common/target-implicit-map-2.c: New testcase.

This patch implements several C++ specific mapping capabilities introduced for
OpenMP 5.0, including implicit mapping of this[:1] for non-static member
functions, zero-length array section mapping of pointer-typed members,
lambda captured variable access in target regions, and use of lambda objects
inside target regions.

Several adjustments to the C/C++ front-ends to allow more member-access syntax
as valid is also included.

	PR middle-end/92120

gcc/cp/ChangeLog:

	* cp-tree.h (finish_omp_target): New declaration.
	(finish_omp_target_clauses): Likewise.
	* parser.c (cp_parser_omp_clause_map): Adjust call to
	cp_parser_omp_var_list_no_open to set 'allow_deref' argument to true.
	(cp_parser_omp_target): Factor out code, adjust into calls to new
	function finish_omp_target.
	* pt.c (tsubst_expr): Add call to finish_omp_target_clauses for
	OMP_TARGET case.
	* semantics.c (handle_omp_array_sections_1): Add handling to create
	'this->member' from 'member' FIELD_DECL. Remove case of rejecting
	'this' when not in declare simd.
	(handle_omp_array_sections): Likewise.
	(finish_omp_clauses): Likewise. Adjust to allow 'this[]' in OpenMP
	map clauses. Handle 'A->member' case in map clauses. Remove case of
	rejecting 'this' when not in declare simd.
	(struct omp_target_walk_data): New struct for walking over
	target-directive tree body.
	(finish_omp_target_clauses_r): New function for tree walk.
	(finish_omp_target_clauses): New function.
	(finish_omp_target): New function.

gcc/c/ChangeLog:

	* c-parser.c (c_parser_omp_clause_map): Set 'allow_deref' argument in
	call to c_parser_omp_variable_list to 'true'.
	* c-typeck.c (handle_omp_array_sections_1): Add strip of MEM_REF in
	array base handling.
	(c_finish_omp_clauses): Handle 'A->member' case in map clauses.

gcc/ChangeLog:

	* gimplify.c ("tree-hash-traits.h"): Add include.
	(gimplify_scan_omp_clauses): Change struct_map_to_clause to type
	hash_map<tree_operand, tree> *. Adjust struct map handling to handle
	cases of *A and A->B expressions. Under !DECL_P case of
	GOMP_CLAUSE_MAP handling, add STRIP_NOPS for indir_p case, add to
	struct_deref_set for map(*ptr_to_struct) cases. Add MEM_REF case when
	handling component_ref_p case. Add unshare_expr and gimplification
	when created GOMP_MAP_STRUCT is not a DECL. Add code to add
	firstprivate pointer for *pointer-to-struct case.
	(gimplify_adjust_omp_clauses): Move GOMP_MAP_STRUCT removal code for
	exit data directives code to earlier position.
	* omp-low.c (lower_omp_target):
	Handle GOMP_MAP_ATTACH_ZERO_LENGTH_ARRAY_SECTION, and
	GOMP_MAP_POINTER_TO_ZERO_LENGTH_ARRAY_SECTION map kinds.
	* tree-pretty-print.c (dump_omp_clause): Likewise.

gcc/testsuite/ChangeLog:

	* gcc.dg/gomp/target-3.c: New testcase.
	* g++.dg/gomp/target-3.C: New testcase.
	* g++.dg/gomp/target-lambda-1.C: New testcase.
	* g++.dg/gomp/target-lambda-2.C: New testcase.
	* g++.dg/gomp/target-this-1.C: New testcase.
	* g++.dg/gomp/target-this-2.C: New testcase.
	* g++.dg/gomp/target-this-3.C: New testcase.
	* g++.dg/gomp/target-this-4.C: New testcase.
	* g++.dg/gomp/target-this-5.C: New testcase.
	* g++.dg/gomp/this-2.C: Adjust testcase.

include/ChangeLog:

	* gomp-constants.h (enum gomp_map_kind):
	Add GOMP_MAP_ATTACH_ZERO_LENGTH_ARRAY_SECTION, and
	GOMP_MAP_POINTER_TO_ZERO_LENGTH_ARRAY_SECTION map kinds.
	(GOMP_MAP_POINTER_P):
	Include GOMP_MAP_POINTER_TO_ZERO_LENGTH_ARRAY_SECTION.

libgomp/ChangeLog:

	* libgomp.h (gomp_attach_pointer): Add bool parameter.
	* oacc-mem.c (acc_attach_async): Update call to gomp_attach_pointer.
	(goacc_enter_data_internal): Likewise.
	* target.c (gomp_map_vars_existing): Update assert condition to
	include GOMP_MAP_ATTACH_ZERO_LENGTH_ARRAY_SECTION.
	(gomp_map_pointer): Add 'bool allow_zero_length_array_sections'
	parameter, add support for mapping a pointer with NULL target.
	(gomp_attach_pointer): Add 'bool allow_zero_length_array_sections'
	parameter, add support for attaching a pointer with NULL target.
	(gomp_map_vars_internal): Update calls to gomp_map_pointer and
	gomp_attach_pointer, add handling for
	GOMP_MAP_ATTACH_ZERO_LENGTH_ARRAY_SECTION, and
	GOMP_MAP_POINTER_TO_ZERO_LENGTH_ARRAY_SECTION cases.
	* testsuite/libgomp.c++/target-23.C: New testcase.
	* testsuite/libgomp.c++/target-lambda-1.C: New testcase.
	* testsuite/libgomp.c++/target-lambda-2.C: New testcase.
	* testsuite/libgomp.c++/target-this-1.C: New testcase.
	* testsuite/libgomp.c++/target-this-2.C: New testcase.
	* testsuite/libgomp.c++/target-this-3.C: New testcase.
	* testsuite/libgomp.c++/target-this-4.C: New testcase.
	* testsuite/libgomp.c++/target-this-5.C: New testcase.

For -ftrivial-auto-var-init=*, skip initializing the variable if it is an
opaque type, because CONST0_RTX(mode) is not defined for opaque modes.

2021-12-01  Peter Bergner  <bergner@linux.ibm.com>

gcc/
	PR middle-end/103127
	* gimplify.c (is_var_need_auto_init): Handle opaque types.

gcc/testsuite/
	PR middle-end/103127
	* gcc.target/powerpc/pr103127.c: New test.

Follow-up for recent commit b7e20480
"openmp: Relax handling of implicit map vs. existing device mappings".

As discussed, we likely also for OpenACC ought to use
'OMP_CLAUSE_MAP_RUNTIME_IMPLICIT_P' and do the appropriate implicit clauses
ordering -- but that's for a separate step.

	gcc/
	PR middle-end/103244
	* gimplify.c (gimplify_adjust_omp_clauses): Restore previous
	OpenACC behavior.
	gcc/testsuite/
	PR middle-end/103244
	* c-c++-common/goacc/combined-reduction.c: Revert/expect previous
	OpenACC behavior.
	* c-c++-common/goacc/firstprivate-mappings-1.c: Likewise.
	* c-c++-common/goacc/mdc-1.c: Likewise.
	* g++.dg/goacc/firstprivate-mappings-1.C: Likewise.

This struct copy_body_data's hook is always NULL since merge
of the tuples branch, before that it has been shortly used by the C++
FE during ctor/dtor cloning to chain the remapped blocks, but only
very shortly, before transform_lang_insert_block was a bool and
the call to insert_block was done through a langhook.
I'd say that for something that hasn't been used since 4.4 there is
zero chance we'll want to use it again in the near future.

2021-11-23  Jakub Jelinek  <jakub@redhat.com>

gcc/
	* tree-inline.h (struct copy_body_data): Remove
	transform_lang_insert_block member.
	* tree-inline.c (remap_block): Don't call
	id->transform_lang_insert_block.
	(optimize_inline_calls, copy_gimple_seq_and_replace_locals,
	tree_function_versioning, maybe_inline_call_in_expr,
	copy_fn): Don't initialize id.transform_lang_insert_block.
	* gimplify.c (gimplify_omp_loop): Likewise.
gcc/c/
	* c-typeck.c (c_clone_omp_udr): Don't initialize
	id.transform_lang_insert_block.
gcc/cp/
	* semantics.c (clone_omp_udr): Don't initialize
	id.transform_lang_insert_block.
	* optimize.c (clone_body): Likewise.

We were using unshare_expr and walk_tree_without_duplicate replacement
of the placeholder vars.  The OMP_CLAUSE_REDUCTION_{INIT,MERGE} can contain
other trees that need to be duplicated though, e.g. BLOCKs referenced in
BIND_EXPR(s), or local VAR_DECLs.  This patch uses the inliner code to copy
all of that.  There is a slight complication that those local VAR_DECLs or
placeholders don't have DECL_CONTEXT set, they will get that only when
they are gimplified later on, so this patch sets DECL_CONTEXT for those
temporarily and resets it afterwards.

2021-11-23  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/102431
	* gimplify.c (replace_reduction_placeholders): Remove.
	(note_no_context_vars): New function.
	(gimplify_omp_loop): For OMP_PARALLEL's BIND_EXPR create a new
	BLOCK.  Use copy_tree_body_r with walk_tree instead of unshare_expr
	and replace_reduction_placeholders for duplication of
	OMP_CLAUSE_REDUCTION_{INIT,MERGE} expressions.  Ensure all mentioned
	automatic vars have DECL_CONTEXT set to non-NULL before doing so
	and reset it afterwards for those vars and their corresponding
	vars.

	* c-c++-common/gomp/pr102431.c: New test.
	* g++.dg/gomp/pr102431.C: New test.
	* gfortran.dg/gomp/pr102431.f90: New test.