libcpp/ChangeLog:
	PR preprocessor/92982
	* charset.c
	(cpp_string_location_reader::cpp_string_location_reader): Delete
	initialization of m_line_table.
	* include/cpplib.h (cpp_string_location_reader::m_line_table):
	Delete unused member.

From-SVN: r279541

[OpenACC] Refactor 'goacc_enter_data' so that it can be called from 'goacc_insert_pointer', "present" case, and simplify

No functional changes.

	libgomp/
	* oacc-mem.c (goacc_enter_data): Refactor, so that it can be
	called...
	(goacc_insert_pointer): ... from here, "present" case.
	(goacc_insert_pointer): Inline function into...
	(GOACC_enter_exit_data): ... here, and simplify.

From-SVN: r279540

[OpenACC] Refactor 'goacc_enter_data' so that it can be called from 'goacc_insert_pointer', "not present" case

No functional changes.

	libgomp/
	* oacc-mem.c (goacc_enter_data): Refactor, so that it can be
	called...
	(goacc_insert_pointer): ... from here, "not present" case.

From-SVN: r279539

No functional changes.

	libgomp/
	* oacc-mem.c (goacc_remove_pointer): Refactor interface.  Adjust
	all users.

From-SVN: r279538

No functional changes.

	libgomp/
	* oacc-mem.c (GOACC_enter_exit_data): Refactor code to call
	'goacc_enter_data', 'goacc_exit_data'.

From-SVN: r279537

Change 'FLAG_COPYOUT', 'FLAG_FINALIZE' into the usual map kind.

No functional changes.

	libgomp/
	* oacc-mem.c (delete_copyout): Refactor into...
	(goacc_exit_data): ... this.  Adjust all users.

From-SVN: r279536

Every caller passes in 'FLAG_PRESENT', 'FLAG_CREATE'.  Change the remaining
'FLAG_COPY' into the usual map kind.

No functional changes.

	libgomp/
	* oacc-mem.c (present_create_copy): Refactor into...
	(goacc_enter_data): ... this.  Adjust all users.

From-SVN: r279535

Assert in 'libgomp/target.c:gomp_unmap_vars_internal' that we're not unmapping 'tgt' while it's still in use

	libgomp/
	* target.c (gomp_unmap_vars_internal): Add a safeguard to
	'gomp_remove_var'.

From-SVN: r279534

[OpenACC] In 'libgomp/target.c:gomp_to_device_kind_p', handle 'GOMP_MAP_FORCE_FROM' like 'GOMP_MAP_FROM'

Fix oversight from r254194 "Coalesce host to device transfers in libgomp".

	libgomp/
	* target.c (gomp_to_device_kind_p): Handle 'GOMP_MAP_FORCE_FROM'
	like 'GOMP_MAP_FROM'.

From-SVN: r279533

[PR92726, PR92970, PR92984] [OpenACC] Clarify 'acc_delete' etc. for 'NULL'-in, non-present data, or size zero

PR92970 "OpenACC 2.5: 'acc_delete' etc. on non-present data is a no-op" is an
actual bug fix, and the other ones are fall-out, currently undefined behavior.

	libgomp/
	PR libgomp/92726
	PR libgomp/92970
	PR libgomp/92984
	* oacc-mem.c (delete_copyout): No-op behavior if 'lookup_host'
	fails.
	(GOACC_enter_exit_data): Simplify accordingly.
	* testsuite/libgomp.oacc-c-c++-common/pr92970-1.c: New file,
	subsuming...
	* testsuite/libgomp.oacc-c-c++-common/lib-17.c: ... this file...
	* testsuite/libgomp.oacc-c-c++-common/lib-18.c: ..., and this
	file.
	* testsuite/libgomp.oacc-c-c++-common/pr92984-1.c: New file,
	subsuming...
	* testsuite/libgomp.oacc-c-c++-common/lib-21.c: ... this file...
	* testsuite/libgomp.oacc-c-c++-common/lib-29.c: ..., and this
	file.
	* testsuite/libgomp.oacc-c-c++-common/pr92726-1.c: New file,
	subsuming...
	* testsuite/libgomp.oacc-c-c++-common/lib-28.c: ... this file.

From-SVN: r279532

No functional changes.

	gcc/
	* gimplify.c (gimplify_omp_target_update): Elaborate 'exit data'
	'finalize' handling.
	gcc/testsuite/
	* c-c++-common/goacc/finalize-1.c: Extend.
	* gfortran.dg/goacc/finalize-1.f: Likewise.
	libgomp/
	* oacc-mem.c (GOACC_enter_exit_data): Simplify 'exit data'
	'finalize' handling.

From-SVN: r279531

	libgomp/
	PR libgomp/92848
	* oacc-mem.c (acc_map_data, present_create_copy)
	(goacc_insert_pointer): Use 'GOMP_MAP_VARS_ENTER_DATA'.
	(acc_unmap_data, delete_copyout, goacc_remove_pointer): Adjust.
	* testsuite/libgomp.oacc-c-c++-common/lib-50.c: Remove.
	* testsuite/libgomp.oacc-c-c++-common/pr92848-1-d-a.c: New file
	* testsuite/libgomp.oacc-c-c++-common/pr92848-1-d-p.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/pr92848-1-r-a.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/pr92848-1-r-p.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/subset-subarray-mappings-1-r-p.c:
	Remove "XFAIL"s.

From-SVN: r279530

This got changed to 'attribute_hidden' in r271128, but it's not actually used
outside of 'libgomp/target.c'.

	libgomp/
	* target.c (gomp_unmap_tgt): Make it 'static'.
	* libgomp.h (gomp_unmap_tgt): Remove.

From-SVN: r279529

        PR middle-end/86416
        *  Makefile.in (CFLAGS-lto-streamer-in.o): Pass target_noncanonical on.
        * lto-streamer-in.c (lto_input_mode_table): Improve unsupported-mode
        diagnostic.

        PR middle-end/86416
        * testsuite/libgomp.c/pr86416-1.c: New.
        * testsuite/libgomp.c/pr86416-2.c: New.

From-SVN: r279528

2019-12-18  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/70853
	* trans-expr.c (gfc_trans_pointer_assignment): Reject bounds
	remapping if pointer target is NULL().

	PR fortran/70853
	* gfortran.dg/pr70853.f90: New test.

From-SVN: r279527

Several tuning settings in cores.def are not consistent.
Set the tuning for Cortex-A76AE and Cortex-A77 to neoversen1 so
it is the same as for Cortex-A76 and Neoverse N1.
Set the tuning for Neoverse E1 to cortexa73 so it's the same as for
Cortex-A65. Set the scheduler for Cortex-A65 and Cortex-A65AE to
cortexa53.

    gcc/
	* config/aarch64/aarch64-cores.def: 
	("cortex-a76ae"): Use neoversen1 tuning.
	("cortex-a77"): Likewise.
	("cortex-a65"): Use cortexa53 scheduler.
	("cortex-a65ae"): Likewise.
	("neoverse-e1"): Use cortexa73 tuning.

From-SVN: r279526

2019-12-18  Martin Jambor  <mjambor@suse.cz>

	PR ipa/92971
	* ipa-cp.c (cgraph_edge_brings_all_agg_vals_for_node): Fix
          definition of values, release memory on exit.

	testsuite/
	* gcc.dg/ipa/ipcp-agg-12.c: New test.

From-SVN: r279525

From-SVN: r279524

	* ipa-param-manipulation.h (get_original_index): Declare.
	* ipa-param-manipulation.c (ipa_param_adjustments::get_original_index):
	New member function.
	* ipa-prop.c (ipcp_get_parm_bits): New function.
	* ipa-prop.h (ipcp_get_parm_bits): Declare.
	* tree-ssa-ccp.c: Include cgraph.h, alloc-pool.h, symbol-summary.h,
	ipa-utils.h and ipa-prop.h
	(get_default_value): Use ipcp_get_parm_bits.

	* gcc.dg/ipa/ipa-bit-cp.c: New testcase.
	* gcc.dg/ipa/ipa-bit-cp-1.c: New testcase.
	* gcc.dg/ipa/ipa-bit-cp-2.c: New testcase.

Co-Authored-By: Martin Jambor <mjambor@suse.cz>

From-SVN: r279523

this->X::~X() is handled by finish_class_member_access_expr and its
lookup_destructor subroutine; let's use it in cp_parser_lookup_name for the
case where this-> is implicit.

I tried replacing the other destructor code here with just the call to
lookup_destructor, but that regressed handling of naming the destructor
outside a non-static member function.

	* parser.c (cp_parser_lookup_name): Use lookup_destructor.
	* typeck.c (lookup_destructor): No longer static.

From-SVN: r279522

2019-12-18  Andrew Stubbs  <ams@codesourcery.com>

	gcc/testsuite/
	* gcc.dg/vect/pr65947-8.c: Change pass conditions for amdgcn.

From-SVN: r279521

	PR lto/92972
	* lto-wrapper.c (merge_and_complain): Use just "-fno-pie" instead of
	big ? "-fno-pie" : "-fno-pie".  Formatting fixes.  Fix comment typo.

From-SVN: r279520

trans.c (Pragma_to_gnu): Push a diagnostics state for pragma Warnings (Off) before turning off all the...

	* gcc-interface/trans.c (Pragma_to_gnu) <Pragma_Warnings>: Push a
	diagnostics state for pragma Warnings (Off) before turning off all
	the warnings and only pop it for pragma Warnings (On).

From-SVN: r279519

2019-12-18  Justin Squirek  <squirek@adacore.com>

gcc/ada/

	* sem_ch6.adb (Analyze_Function_Return): Modify handling of
	extended return statements to check accessibility of access
	discriminants.
	(Check_Aggregate_Accessibility): Removed.
	(Check_Return_Obj_Accessibility): Added to centralize checking
	of return aggregates and subtype indications in the case of an
	extended return statement.

From-SVN: r279518

2019-12-18  Arnaud Charlet  <charlet@adacore.com>

gcc/ada/

	* libgnat/s-regpat.adb (Parse_Literal, Parse_Piece): Ensure
	Expr_Flags is always fully initialized.

From-SVN: r279517

2019-12-18  Arnaud Charlet  <charlet@adacore.com>

gcc/ada/

	* libgnat/s-atopar.ads, libgnat/s-atopex.ads (Atomic_Type): Can
	now be marked Atomic. This requires marking the unit Ada 202x.

From-SVN: r279516

2019-12-18  Arnaud Charlet  <charlet@adacore.com>

gcc/ada/

	* libgnat/a-nbnbin.ads, libgnat/a-nbnbin.adb,
	libgnat/a-nbnbre.ads, libgnat/a-nbnbre.adb: Replace
	Optional_Big_* types by a simple check and exception raise in
	Get_Bignum.
	(Set_Bignum): Arg should be 'out' and not 'in out'.
	(Invalid_Big_Integer, No_Big_Real): Removed.
	(Is_Valid): Now convention Intrinsic.

From-SVN: r279515

2019-12-18  Piotr Trojanek  <trojanek@adacore.com>

gcc/ada/

	* doc/gnat_rm/implementation_defined_pragmas.rst,
	doc/gnat_rm/obsolescent_features.rst,
	doc/gnat_ugn/gnat_and_program_execution.rst, exp_attr.adb,
	exp_ch9.adb, init.c, libgnat/s-valrea.adb, par-ch6.adb,
	sem_attr.adb, sem_ch4.adb, sem_util.ads: Fix trivial typos.
	* gnat_rm.texi, gnat_ugn.texi: Regenerate.

From-SVN: r279514

2019-12-18  Gary Dismukes  <dismukes@adacore.com>

gcc/ada/

	* sem_res.adb (Resolve_Type_Conversion): Add handling for access
	types with designated operand and target types that are
	referenced in places that have a limited view of an interface
	type by retrieving the nonlimited view when it exists.  Add ???
	comments related to missing limited_with_clause handling for
	Target (in the non-access case).

From-SVN: r279513

2019-12-18  Ed Schonberg  <schonberg@adacore.com>

gcc/ada/

	* par-ch12.adb (P_Formal_Derived_Type_Definition): In Ada_2020
	the keyword WITH can indicate the start of aspect specifications
	and not a private type extension.
	* sem_ch12.adb (Analyze_Formal_Type): Indicate that it is a
	first subtype.
	(Instantiate_Type): New procedure
	Check_Shared_Variable_Control_Aspects to verify matching rules
	between formal and actual types. Note that an array type with
	aspect Atomic_Components is considered compatible with an array
	type whose component type is Atomic, even though the array types
	do not carry the same aspect.
	* sem_ch13.adb (Analyze_One_Aspect): Allow shared variable
	control aspects to appear on formal types.
	(Rep_Item_Too_Early): Exclude aspects on formal types.
	* sem_prag.adb (Mark_Type): Handle properly pragmas that come
	from aspects on formal types.
	(Analyze_Pragma, case Atomic_Components): Handle formal types.

From-SVN: r279512

2019-12-18  Eric Botcazou  <ebotcazou@adacore.com>

gcc/ada/

	* cstand.adb (Create_Standard): Remove duplicate line and
	adjust.

From-SVN: r279511

2019-12-18  Javier Miranda  <miranda@adacore.com>

gcc/ada/

	* debug.adb: Document -gnatd_K as a reserved switch for the
	detection of known problem issues of previous releases.

From-SVN: r279510

2019-12-18  Ghjuvan Lacambre  <lacambre@adacore.com>

gcc/ada/

	* par-ch13.adb: Check if declarations allow aspect
	specifications.

From-SVN: r279509

2019-12-18  Piotr Trojanek  <trojanek@adacore.com>

gcc/ada/

	* einfo.ads (Is_Ghost_Entity): Fix typo in comment.

From-SVN: r279508

2019-12-18  Eric Botcazou  <ebotcazou@adacore.com>

gcc/ada/

	* layout.adb (Layout_Type): In the case of composite types, do
	not copy the Esize onto the RM_Size if the latter is not set.
	* gcc-interface/decl.c (gnat_to_gnu_entity) <E_Record_Type>:
	Also cap the alignment if an Object_Size clause has been
	specified.  Pass VAR_DECL in the call to validate_size for the
	Esize of a type.
	(validate_size): Be prepared to give an error on an Object_Size
	clause.

From-SVN: r279507

2019-12-18  Eric Botcazou  <ebotcazou@adacore.com>

gcc/ada/

	* einfo.ads (Handling of Type'Size Value): Add references to the
	introduction of Object_Size in Ada 2020.
	* sem_eval.adb (Subtypes_Statically_Match): Likewise.

From-SVN: r279506

2019-12-18  Bob Duff  <duff@adacore.com>

gcc/ada/

	* sem_ch3.adb (Derive_Subprogram): Do not set the
	Requires_Overriding flag in the above-mentioned case.

From-SVN: r279505

2019-12-18  Bob Duff  <duff@adacore.com>

gcc/ada/

	* sem_ch8.adb (Note_Redundant_Use): It was already checking for
	a use clause in the visible part of the child. Add an additional
	check for a use clause in the context clause of the child.

From-SVN: r279504

From-SVN: r279483

gcc/c-family/ChangeLog:

	PR c++/61339
	* c.opt (-Wmismatched-tags, -Wredundant-tags): New options.

gcc/cp/ChangeLog:

	PR c++/61339
	* parser.c (cp_parser_maybe_warn_enum_key): New function.
	(class_decl_loc_t): New class.
	(cp_parser_elaborated_type_specifier): Call
	cp_parser_maybe_warn_enum_key.
	(cp_parser_class_head): Call cp_parser_check_class_key.
	(cp_parser_check_class_key): Add arguments.  Call class_decl_loc_t::add.
	(c_parse_file): Call class_decl_loc_t::diag_mismatched_tags.

gcc/testsuite/ChangeLog:

	PR c++/61339
	* g++.dg/warn/Wmismatched-tags.C: New test.
	* g++.dg/warn/Wredundant-tags.C: New test.
	* g++.dg/pch/Wmismatched-tags.C: New test.
	* g++.dg/pch/Wmismatched-tags.Hs: New test header.

gcc/ChangeLog:

	PR c++/61339
	* doc/invoke.texi (-Wmismatched-tags, -Wredundant-tags): Document
	new C++ options.

From-SVN: r279480