Daily bump.

[thirdparty/gcc.git] / gcc / ada / ChangeLog

2021-06-28  Martin Sebor  <msebor@redhat.com>

	* gcc-interface/trans.c (Handled_Sequence_Of_Statements_to_gnu):
	Replace TREE_NO_WARNING with suppress_warning.
	(gnat_gimplify_expr): Same.
	* gcc-interface/utils.c (gnat_pushdecl): Same.

2021-06-21  Gary Dismukes  <dismukes@adacore.com>

	* checks.adb (Selected_Range_Checks): In the case of a
	qualified_expression where the qualifying subtype is an
	unconstrained array subtype with fixed lower bounds for some of
	its indexes, generate tests to check that those bounds are equal
	to the corresponding lower bounds of the qualified array object.

2021-06-21  Bob Duff  <duff@adacore.com>

	* libgnat/s-valuen.ads (Value_Enumeration,
	Valid_Enumeration_Value): Inline.
	(Value_Enumeration_Pos): Add Pure_Function.

2021-06-21  Justin Squirek  <squirek@adacore.com>

	* doc/gnat_rm/implementation_defined_pragmas.rst: Document new
	feature under pragma Extensions_Allowed.
	* gnat_rm.texi: Regenerate.
	* errout.adb, errout.ads (Error_Msg_GNAT_Extension): Created to
	issue errors when parsing extension only constructs.
	* exp_ch11.adb, exp_ch11.ads (Expand_N_Raise_When_Statement):
	Created to expand raise ... when constucts.
	* exp_ch5.adb, exp_ch5.ads (Expand_N_Goto_When_Statement):
	Created to expand goto ... when constructs.
	* exp_ch6.adb, exp_ch6.ads (Expand_N_Return_When_Statement):
	Created to expand return ... when constructs.
	* expander.adb (Expand): Add case entries for "when" constructs.
	* gen_il-gen-gen_nodes.adb, gen_il-types.ads: Add entries for
	"when" constructs.
	* par-ch11.adb (P_Raise_Statement): Add processing for raise ...
	when.
	* par-ch5.adb (Missing_Semicolon_On_Exit): Renamed to
	Missing_Semicolon_On_When and moved to par-util.adb.
	* par-ch6.adb (Get_Return_Kind): Renamed from Is_Simple and
	processing added for "return ... when" return kind.
	(Is_Simple): Renamed to Get_Return_Kind.
	(P_Return_Statement): Add case for return ... when variant of
	return statement.
	* par-util.adb, par.adb (Missing_Semicolon_On_When): Added to
	centeralize parsing of "when" keywords in the context of "when"
	constructs.
	* sem.adb (Analyze): Add case for "when" constructs.
	* sem_ch11.adb, sem_ch11.ads (Analyze_Raise_When_Statement):
	Created to analyze raise ... when constructs.
	* sem_ch5.adb, sem_ch5.ads (Analyzed_Goto_When_Statement):
	Created to analyze goto ... when constructs.
	* sem_ch6.adb, sem_ch6.ads (Analyze_Return_When_Statement):
	Created to analyze return ... when constructs.
	* sprint.adb (Sprint_Node_Actual): Add entries for new "when"
	nodes.

2021-06-21  Steve Baird  <baird@adacore.com>

	* Make-generated.in (GEN_IL_FLAGS): Keep only GNAT flags.
	(ada/stamp-gen_il): Remove dependencies on libgnat/ sources.  Do not
	copy libgnat/ sources locally and tidy up.
	* Makefile.rtl: Include object files for new Text_Buffer units
	in the GNATRTL_NONTASKING_OBJS list.
	* exp_put_image.ads, exp_put_image.adb: Update Rtsfind calls to
	match new specs. For example, calls to RE_Sink are replaced with
	calls to RE_Root_Buffer_Type. Update comments and change
	subprogram names accordingly (e.g., Preload_Sink is changed to
	Preload_Root_Buffer_Type).
	* impunit.adb: Add 6 new predefined units (Text_Buffers and 5
	child units thereof).
	* rtsfind.ads, rtsfind.adb: Add interfaces for accessing the
	Ada.Strings.Text_Buffers package and declarations
	therein (including the Unbounded child unit). Do not (yet)
	delete interfaces for accessing the old Text_Output package.
	* sem_attr.adb (Check_Put_Image_Attribute): Replace RE_Sink uses
	with RE_Root_Buffer_Type and update comments accordingly.
	* sem_ch10.adb (Analyze_Compilation_Unit): Update call to
	reflect name change of callee (that is, the former Preload_Sink
	is now Preload_Root_Buffer_Type).
	* sem_ch13.adb (Has_Good_Profile): Replace RE_Sink use with
	RE_Root_Buffer_Type.
	(Build_Spec): Update comment describing a parameter type.
	* gen_il.ads: Remove clauses for the old Text_Output package and
	add them for Ada.Streams.Stream_IO.
	(Sink): Declare.
	(Create_File): Likewise.
	(Increase_Indent): Likewise.
	(Decrease_Indent): Likewise.
	(Put): Likewise.
	(LF): Likewise.
	* gen_il.adb: Add clauses for Ada.Streams.Stream_IO.
	(Create_File): New procedure.
	(Increase_Indent): Likewise.
	(Decrease_Indent): Likewise.
	(Put): New procedures.
	* gen_il-gen.adb: Add clauses for Ada.Text_IO.  Replace
	Sink'Class with Sink throughout.  Use string concatenation and
	LF marker instead of formatted strings and "\n" marker.  Update
	Indent/Outdent calls to use new Increase_Indent/Decrease_Indent
	names.
	(Put_Membership_Query_Decl): Remove.
	* gen_il-internals.ads: Replace Sink'Class with Sink throughout.
	(Ptypes): Remove.
	(Pfields): Likewise.
	* gen_il-internals.adb: Remove clauses for GNAT.OS_Lib and
	Ada.Strings.Text_Buffers.Files.  Replace Sink'Class with Sink
	throughout.  Use string concatenation and LF marker instead of
	formatted strings and "\n" marker.
	(Stdout): Remove.
	(Ptypes): Likewise.
	(Pfields): Likewise.
	* libgnarl/s-putaim.ads: Modify context clause, update
	declaration of subtype Sink to refer to
	Text_Buffers.Root_Buffer_Type instead of the old
	Text_Output.Sink type.
	* libgnarl/s-putaim.adb: Modify context clause and add use
	clause to refer to Text_Buffers package.
	* libgnat/a-cbdlli.ads, libgnat/a-cbdlli.adb,
	libgnat/a-cbhama.ads, libgnat/a-cbhama.adb,
	libgnat/a-cbhase.ads, libgnat/a-cbhase.adb,
	libgnat/a-cbmutr.ads, libgnat/a-cbmutr.adb,
	libgnat/a-cborma.ads, libgnat/a-cborma.adb,
	libgnat/a-cborse.ads, libgnat/a-cborse.adb,
	libgnat/a-cdlili.ads, libgnat/a-cdlili.adb,
	libgnat/a-cidlli.ads, libgnat/a-cidlli.adb,
	libgnat/a-cihama.ads, libgnat/a-cihama.adb,
	libgnat/a-cihase.ads, libgnat/a-cihase.adb,
	libgnat/a-cimutr.ads, libgnat/a-cimutr.adb,
	libgnat/a-ciorma.ads, libgnat/a-ciorma.adb,
	libgnat/a-ciormu.ads, libgnat/a-ciormu.adb,
	libgnat/a-ciorse.ads, libgnat/a-ciorse.adb,
	libgnat/a-coboho.ads, libgnat/a-coboho.adb,
	libgnat/a-cobove.ads, libgnat/a-cobove.adb,
	libgnat/a-cohama.ads, libgnat/a-cohama.adb,
	libgnat/a-cohase.ads, libgnat/a-cohase.adb,
	libgnat/a-coinho.ads, libgnat/a-coinho.adb,
	libgnat/a-coinho__shared.ads, libgnat/a-coinho__shared.adb,
	libgnat/a-coinve.ads, libgnat/a-coinve.adb,
	libgnat/a-comutr.ads, libgnat/a-comutr.adb,
	libgnat/a-convec.ads, libgnat/a-convec.adb,
	libgnat/a-coorma.ads, libgnat/a-coorma.adb,
	libgnat/a-coormu.ads, libgnat/a-coormu.adb,
	libgnat/a-coorse.ads, libgnat/a-coorse.adb,
	libgnat/a-nbnbin.ads, libgnat/a-nbnbin.adb,
	libgnat/a-nbnbin__gmp.adb, libgnat/a-nbnbre.ads,
	libgnat/a-nbnbre.adb, libgnat/a-strunb.ads,
	libgnat/a-strunb.adb, libgnat/a-strunb__shared.ads,
	libgnat/a-strunb__shared.adb, libgnat/s-rannum.ads,
	libgnat/s-rannum.adb: Modify Put_Image procedure used in
	Put_Image aspect specification to conform to Ada profile
	rules (in particular, the first parameter shall be of type
	Ada.Strings.Text_Buffers.Root_Buffer_Type'Class).
	* libgnat/a-sttebu.ads, libgnat/a-sttebu.adb,
	libgnat/a-stbubo.ads, libgnat/a-stbubo.adb,
	libgnat/a-stbufi.ads, libgnat/a-stbufi.adb,
	libgnat/a-stbufo.ads, libgnat/a-stbufo.adb,
	libgnat/a-stbuun.ads, libgnat/a-stbuun.adb,
	libgnat/a-stbuut.ads, libgnat/a-stbuut.adb: A new predefined
	unit, Ada.Strings.Text_Buffers, and five child units.  Two of
	the five are RM-defined: Bounded and Unbounded. The remaining
	three are GNAT-defined: Files, Utils, and Formatting. The buffer
	type corresponding to an output file, type Files.File_Buffer, is
	simpler (and perhaps therefore slower) than its predecessor.
	Caching similar to what was being done before could be added
	later if that seems appropriate.
	* libgnat/s-putima.ads: Modify context clause, update
	declaration of subtype Sink to refer to
	Text_Buffers.Root_Buffer_Type instead of the old
	Text_Output.Sink type.
	* libgnat/s-putima.adb: Modify context clause.  Update
	Indent/Outdent calls to use new Increase_Indent/Decrease_Indent
	names; ditto for "Put_String => Put" name change.
	* libgnat/a-stteou__bootstrap.ads: Delete.

2021-06-21  Eric Botcazou  <ebotcazou@adacore.com>

	* exp_ch5.adb (Expand_Assign_Array_Bitfield_Fast): If big-endian
	ordering is in effect for the operands and they are small,
	adjust the unchecked conversions done around them.

2021-06-21  Richard Kenner  <kenner@adacore.com>

	* einfo.ads (Return_Statement): Add documentation.
	* exp_ch6.adb (Expand_N_Extended_Return_Statement): Set it.
	* gen_il-fields.ads: Add it.
	* gen_il-gen-gen_entities.adb: Add it.

2021-06-21  Bob Duff  <duff@adacore.com>

	* rtsfind.ads, libgnat/s-bitfie.ads, libgnat/s-bituti.adb,
	libgnat/s-bituti.ads (Fast_Copy_Bitfield): New run-time library
	function to copy bit fields faster than Copy_Bitfield. Cannot be
	called with zero-size bit fields.  Remove obsolete ??? comments
	from s-bituti.adb; we already do "avoid calling this if
	Forwards_OK is False".
	* exp_ch5.adb (Expand_Assign_Array_Loop_Or_Bitfield,
	Expand_Assign_Array_Bitfield_Fast): Generate calls to
	Fast_Copy_Bitfield when appropriate.
	* sem_util.adb, sem_util.ads (Get_Index_Bounds): Two new
	functions for getting the index bounds. These are more
	convenient than the procedure of the same name, because they can
	be used to initialize constants.

2021-06-21  Ed Schonberg  <schonberg@adacore.com>

	* gen_il-fields.ads: Add Default_Subtype_Mark to enumeration
	type for fields.
	* gen_il-gen-gen_nodes.adb: Add call to create new field for
	Formal_Type_Declaration node.
	* par-ch12.adb (P_Formal_Type_Declaration): in Ada_2022 mode,
	recognize new syntax for default: "or use subtype_mark".
	(P_Formal_Type_Definition): Ditto for the case of a formal
	incomplete type.
	* sinfo.ads: Add field Default_Subtype_Mark to
	N_Formal_Type_Declaration.
	* sem_ch12.adb (Validate_Formal_Type_Default): New procedure, to
	apply legality rules to default subtypes in formal type
	declarations. Some legality rules apply to all defaults, such as
	the requirement that the default for a formal type that depends
	on previous formal entities must itself be a previously declared
	formal of the same unit. Other checks are kind- specific.
	(Analyze_Associations): Use specified default if there is no
	actual provided for a formal type in an instance.
	(Analyze_Formal_Type_Declaration): Call
	Validate_Formal_Type_Default when default subtype is present.

2021-06-21  Bob Duff  <duff@adacore.com>

	* libgnat/s-valuen.ads, libgnat/s-valuen.adb
	(Value_Enumeration_Pos): New function to compute the 'Pos of the
	enumeration literal for a given String.  Return a special value
	instead of raising an exception on invalid input. Called by both
	Valid_Enumeration_Image and Value_Enumeration.
	(Valid_Enumeration_Image): Return a Boolean indicating whether
	the String is a valid Image for the given enumeration type.
	(Value_Enumeration): Implement in terms of
	Value_Enumeration_Pos.
	* libgnat/s-vaenu8.ads, libgnat/s-vaen16.ads,
	libgnat/s-vaen32.ads: Rename Valid_Enumeration_Image from the
	instances.
	* libgnat/s-valuti.ads: Correct documentation (it was not true
	for the null string).
	* libgnat/s-valuti.adb (Normalize_String): Do not raise
	Constraint_Error for the null string, nor strings containing
	nothing but blanks, so that Valid_Enumeration_Image can return
	False in these cases, rather than raising an exception.
	* rtsfind.ads (RE_Value_Enumeration_8, RE_Value_Enumeration_16,
	RE_Value_Enumeration_32): New functions.
	(RTE_Available): Improve comment (E doesn't have to be a
	subprogram, although that's the usual case).
	* sem_attr.adb (nalid_Value): Semantic analysis for new
	attribute.
	* exp_attr.adb: Call Expand_Valid_Value_Attribute for new
	attribute.
	* exp_imgv.ads, exp_imgv.adb (Expand_Valid_Value_Attribute): New
	procedure to expand Valid_Value into a call to
	Valid_Enumeration_Image_NN.
	(Expand_Value_Attribute): Misc code cleanups.  Remove two ???
	mark comments. RTE_Available won't work here.  For one thing,
	RTE_Available (X) shouldn't be called until the compiler has
	decided to make use of X (see comments on RTE_Available), and in
	this case we're trying to AVOID calling something.
	* snames.ads-tmpl: New attribute name.
	* doc/gnat_rm/implementation_defined_attributes.rst: Document
	new attribute.
	* gnat_rm.texi: Regenerate.

2021-06-21  Eric Botcazou  <ebotcazou@adacore.com>

	* fe.h (Assume_No_Invalid_Values): Declare.
	* opt.ads (Assume_No_Invalid_Values): Add warning comment.

2021-06-21  Bob Duff  <duff@adacore.com>

	* libgnat/s-bituti.ads (Small_Size): Do not include 0 in this
	type.
	* libgnat/s-bituti.adb (Copy_Bitfield): Do nothing for 0-bit
	bitfields.

2021-06-21  Ghjuvan Lacambre  <lacambre@adacore.com>

	* exp_ch9.adb (Build_Simple_Entry_Call): Add comment.
	* libgnat/s-rannum.adb (Random): Update comment.
	* libgnat/s-rannum.ads (Generator): Update comment.

2021-06-21  Piotr Trojanek  <trojanek@adacore.com>

	* doc/gnat_rm/representation_clauses_and_pragmas.rst (Address
	Clauses): Fix unbalanced parens.
	* gnat_rm.texi: Regenerate.

2021-06-21  Ghjuvan Lacambre  <lacambre@adacore.com>

	* errout.adb (Handle_Serious_Error): Capitalize comment.
	* exp_dbug.adb (Set_Entity_Name): Capitalize sentence.
	* exp_dist.adb (Expand_All_Calls_Remote_Subprogram_Call): Fix
	typo.
	* sem_ch3.adb (Modular_Type_Declaration): Add space after comma.

2021-06-21  Ghjuvan Lacambre  <lacambre@adacore.com>

	* debug.adb: Document -gnatd_U as taken.
	* err_vars.ads (Warning_Doc_Switch): Set to True.
	* errout.ads (Errout): Update documentation.
	* gnat1drv.adb (Adjust_Global_Switches): React to -gnatd_U.
	* hostparm.ads (Tag_Errors): Set to True.
	* opt.ads (Unique_Error_Tag): Document -gnatd_U.

2021-06-21  Eric Botcazou  <ebotcazou@adacore.com>

	* urealp.ads (UR_Write_To_JSON): Declare.
	* urealp.adb (Decimal_Exponent_Hi): Treat numbers in base 10
	specially and rewrite handling of numbers in other bases.
	(Decimal_Exponent_Lo): Likewise.
	(Normalize): Minor tweak.
	(UR_Write_To_JSON): New wrapper procedure around UR_Write.
	* repinfo.adb (List_Type_Info): When the output is to JSON, call
	UR_Write_To_JSON instead of UR_Write.

2021-06-21  Piotr Trojanek  <trojanek@adacore.com>

	* sem_util.adb (Indexed_Component_Bit_Offset): Return an unknown
	offset for components within multidimensional arrays; remove
	redundant parens.

2021-06-21  Piotr Trojanek  <trojanek@adacore.com>

	* sem_util.adb (Find_Overlaid_Entity): Ignore references to
	components and discriminants.

2021-06-21  Doug Rupp  <rupp@adacore.com>

	* Makefile.rtl (aarch64-linux) [LIBGNAT_TARGET_PAIRS]: Add
	$(TRASYM_DWARF_UNIX_PAIRS).
	[EXTRA_GNAT_RTL_NONTASKING_OBJS]: Add $(TRASYM_DWARF_UNIX_OBJS)

2021-06-21  Gary Dismukes  <dismukes@adacore.com>

	* exp_util.adb (Expand_Sliding_Conversion): Only perform
	expansion when Expander_Active is True. Add a comment about this
	and refine existing comment regarding string literals.

2021-06-21  Piotr Trojanek  <trojanek@adacore.com>

	* sem_util.adb (Denotes_Same_Object): Simplify handling of
	slices.

2021-06-21  Piotr Trojanek  <trojanek@adacore.com>

	* sem_util.adb (Is_Object_Renaming): Rename from Is_Renaming;
	simplify; adapt callers.

2021-06-21  Frederic Konrad  <konrad@adacore.com>

	* Makefile.rtl: Compiles both static and dynamic libgnat for
	powerpc64-wrs-vxworks7r2.

2021-06-18  Gary Dismukes  <dismukes@adacore.com>

	* sem_ch3.adb (Constrain_Array): Add error checking for
	fixed-lower-bound and constrained index ranges applied
	inappropriately on subtypes of unconstrained and
	fixed-lower-bound array types.
	(Constrain_Index): Correct and refine comment related to
	fixed-lower-bound index ranges.

2021-06-18  Bob Duff  <duff@adacore.com>

	* gen_il-gen.adb: Improve comments.
	* snames.ads-tmpl (Convention_Id): Remove "--  Plenty of space
	for expansion", because that's irrelevant now that we are no
	longer laying out node fields by hand.

2021-06-18  Piotr Trojanek  <trojanek@adacore.com>

	* sem_util.adb (Denotes_Same_Object): Handle character literals
	just like integer literals.

2021-06-18  Piotr Trojanek  <trojanek@adacore.com>

	* sem_util.adb (Denotes_Same_Object): Explicitly test for node
	kinds being the same; deal with renamings one-by-one; adjust
	numbers in references to the Ada RM.

2021-06-18  Bob Duff  <duff@adacore.com>

	* sprint.adb (Write_Source_Line): Check for EOF in
	Line_Terminator loop.  Note that when a source file is read in,
	an EOF character is added to the end.

2021-06-18  Piotr Trojanek  <trojanek@adacore.com>

	* sem_aux.adb (Package_Specification): Add assertions to confirm
	the kind of the of parameter and returned node.
	* sem_ch12.adb (Remove_Parent): Reorder conditions; this change
	appears to be semantically neutral, but is enough to avoid the
	problematic call to Package_Specification.
	* sem_util.adb (Is_Incomplete_Or_Private_Type): Replace loop
	with a call to Package_Specification.

2021-06-18  Bob Duff  <duff@adacore.com>

	* sem_attr.adb (Eval_Attribute): For Enum_Lit'Size, use
	Enum_Type'Object_Size.

2021-06-18  Olivier Hainque  <hainque@adacore.com>

	* sigtramp-vxworks-target.inc (__aarch64__): Sync
	REGNO_PC_OFFSET with the back-end DWARF_ALT_FRAME_RETURN_COLUMN.
	In CFI_COMMON_REGS, leave r18 alone, VxWorks private.

2021-06-18  Javier Miranda  <miranda@adacore.com>

	* contracts.adb (Process_Spec_Postconditions): Add missing
	support for aliased subprograms and handle wrappers of
	class-wide pre/post conditions.
	(Process_Inherited_Preconditions): Add missing support for
	aliased subprograms and handle wrappers of class-wide pre/post
	conditions.
	* einfo.ads (Class_Wide_Clone): Fix typo.
	(Is_Class_Wide_Clone): Removed since it is not referenced.
	(Is_Wrapper): Documenting new flag.
	(LSP_Subprogram): Documenting new attribute.
	* exp_ch3.adb (Make_Controlling_Function_Wrappers): Decorate
	wrapper as Is_Wrapper and adjust call to
	Override_Dispatching_Operation.
	* freeze.adb (Build_Inherited_Condition_Pragmas): Fix typo in
	documentation.
	(Check_Inherited_Conditions): Handle LSP wrappers; ensure
	correct decoration of LSP wrappers.
	* gen_il-fields.ads (Is_Class_Wide_Clone): Removed.
	(Is_Wrapper): Added.
	(LSP_Subprogram): Added.
	* gen_il-gen-gen_entities.adb (Is_Class_Wide_Clone): Removed.
	(Is_Wrapper): Added.
	(LSP_Subprogram): Added.
	* gen_il-internals.adb (Image): Adding uppercase image of
	LSP_Subprogram.
	* sem_ch6.adb (New_Overloaded_Entity): Fix decoration of LSP
	wrappers.
	* sem_disp.ads (Override_Dispatching_Operation): Remove
	parameter Is_Wrapper; no longer needed.
	* sem_disp.adb (Check_Dispatching_Operation): Adjust assertion.
	(Override_Dispatching_Operation): Remove parameter Is_Wrapper;
	no longer needed.
	* treepr.adb (Image): Adding uppercase image of LSP_Subprogram.

2021-06-18  Arnaud Charlet  <charlet@adacore.com>

	* exp_ch4.adb (Expand_N_Quantified_Expression): Ensure the type
	of the name of a "for of" loop is frozen.
	* exp_disp.adb (Check_Premature_Freezing): Complete condition to
	take into account a private type completed by another private
	type now that the freezing rule are better implemented.
	* freeze.adb (Freeze_Entity.Freeze_Profile): Do not perform an
	early freeze on types if not in the proper scope. Special case
	expression functions that requires access to the dispatch table.
	(Should_Freeze_Type): New.
	* sem_ch13.adb (Resolve_Aspect_Expressions): Prevent assert
	failure in case of an invalid tree (previous errors detected).
	* sem_res.adb (Resolve): Remove kludge related to entities
	causing incorrect premature freezing.
	* sem_util.adb (Ensure_Minimum_Decoration): Add protection
	against non base types.

2021-06-18  Gary Dismukes  <dismukes@adacore.com>

	* sem_ch3.adb (Constrain_Index): Set the High_Bound of a
	fixed-lower-bound subtype's range to T (the subtype of the FLB
	index being constrained) rather than Base_Type (T).

2021-06-18  Bob Duff  <duff@adacore.com>

	* ada_get_targ.adb, aspects.ads, checks.adb, cstand.adb,
	einfo.ads, exp_attr.adb, freeze.adb, get_targ.adb,
	libgnat/a-textio.ads, libgnat/g-memdum.ads,
	libgnat/s-scaval__128.adb, libgnat/s-scaval.adb, make.adb,
	osint.ads, par-prag.adb, sem_ch13.adb, sem_prag.adb,
	sem_prag.ads, set_targ.adb, set_targ.ads, snames.ads-tmpl,
	targparm.ads, types.ads: Remove AAMP-specific code.
	* switch.ads: Minor reformatting.
	* gen_il-fields.ads, gen_il-gen.adb,
	gen_il-gen-gen_entities.adb, gen_il-types.ads, einfo-utils.adb,
	einfo-utils.ads: Package Types now contains "type Float_Rep_Kind
	is (IEEE_Binary);", which used to also have an enumeral AAMP.
	Gen_IL can't handle fields of this type, which would be zero
	sized. Therefore, we move the Float_Rep field into Einfo.Utils
	as a synthesized attribute. (We do not delete the field
	altogether, in case we want new floating-point representations
	in the future.)
	* doc/gnat_rm/implementation_defined_pragmas.rst,
	doc/gnat_rm/implementation_defined_aspects.rst,
	doc/gnat_ugn/building_executable_programs_with_gnat.rst,
	doc/gnat_ugn/the_gnat_compilation_model.rst: Remove
	AAMP-specific documentation.
	* gnat_rm.texi, gnat_ugn.texi: Regenerate.

2021-06-18  Gary Dismukes  <dismukes@adacore.com>

	* exp_util.adb (Expand_Sliding_Conversion): Move test of
	Is_Fixed_Lower_Bound_Subtype to an assertion. Exclude string
	literals from sliding expansion.

2021-06-18  Piotr Trojanek  <trojanek@adacore.com>

	* sem_warn.adb (Warn_On_Overlapping_Actuals): Cleanup conditions
	related to Ada_Version.

2021-06-18  Piotr Trojanek  <trojanek@adacore.com>

	* sem_util.adb (Address_Value): Simplify.

2021-06-18  Bob Duff  <duff@adacore.com>

	* sem_attr.adb (Check_Array_Or_Scalar_Type): Use Expr_Value
	instead of Intval, because the latter only exists in literals.
	Remove Set_Etype on E1; setting the type is done elsewhere.

2021-06-18  Piotr Trojanek  <trojanek@adacore.com>

	* sem_warn.adb (Warn_On_Overlapping_Actuals): Examine types of
	both formal parameters; refactor a complex detection of
	by-reference types.

2021-06-18  Arnaud Charlet  <charlet@adacore.com>

	* gnatcmd.adb: Fix handling of check and test commands.

2021-06-18  Gary Dismukes  <dismukes@adacore.com>

	* doc/gnat_rm/implementation_defined_pragmas.rst: Add
	documentation for the array fixed-lower-bound feature.
	* gnat_rm.texi: Regenerate.

2021-06-18  Bob Duff  <duff@adacore.com>

	* debug.adb: Document switch.
	* exp_aggr.adb: If -gnatd_g was given, then do not bump the
	limit to 500_000.

2021-06-18  Bob Duff  <duff@adacore.com>

	* sem_util.ads, sem_util.adb (Has_Access_Values): Remove
	Include_Internal parameter that was added in previous change.
	* sem_warn.adb (Warnings_Off_E1): Back out E_Out_Parameter ==>
	Formal_Kind change made previously. Check Is_Private_Type to
	avoid warnings on private types. Misc cleanup.
	* sem_attr.adb (Attribute_Has_Access_Values): Remove
	Include_Internal parameter.

2021-06-18  Piotr Trojanek  <trojanek@adacore.com>

	* sem_warn.adb (Warn_On_Overlapping_Actuals): Remove dead branch
	for overlapping actuals in prefix notation.

2021-06-18  Eric Botcazou  <ebotcazou@adacore.com>

	* sem_prag.adb (Process_Import_Or_Interface): Do not
	artificially record a possible modification for a constant.

2021-06-18  Arnaud Charlet  <charlet@adacore.com>

	* exp_ch6.adb (Expand_Call_Helper): Code cleanups.

2021-06-18  Arnaud Charlet  <charlet@adacore.com>

	* exp_aggr.adb, exp_dist.adb, exp_unst.adb, sa_messages.ads,
	sem_ch13.adb, sem_ch3.adb, sem_ch5.adb, sem_eval.adb,
	sem_util.adb, sem_util.ads, sinfo.ads: Update comments.

2021-06-18  Ghjuvan Lacambre  <lacambre@adacore.com>

	* back_end.adb (Scan_Back_End_Switches): Set Opt.JSON_Output to
	True if -fdiagnostics-format=json option is found.
	* back_end.ads (Scan_Compiler_Arguments): Mention
	Opt.JSON_Output.
	* errout.adb (Output_JSON_Message): New procedure.
	(Output_Messages): If Opt.JSON_Output is True, print messages
	with new Output_JSON_Message procedure.
	* opt.ads: Declare JSON_Output variable.
	* doc/gnat_ugn/building_executable_programs_with_gnat.rst:
	Mention new -fdiagnostics-format option.
	* gnat_ugn.texi: Regenerate.

2021-06-18  Arnaud Charlet  <charlet@adacore.com>

	* sem_ch6.adb (Null_Exclusions_Match): Relax null exclusion
	mismatch check when Relaxed_RM_Semantics is set.

2021-06-18  Arnaud Charlet  <charlet@adacore.com>

	* fe.h, opt.adb, opt.ads, par-prag.adb, sem_prag.adb,
	switch-c.adb (Extensions_Allowed): Replace by a function.
	(Ada_Version_Type): Add new value Ada_With_Extensions, to
	replace setting of Extensions_Allowed.  Update setting of
	Extensions_Allowed.

2021-06-18  Arnaud Charlet  <charlet@adacore.com>

	* bindgen.adb (Gen_Output_File_Ada): Generate a new constant
	GNAT_Version_Address.
	* libgnat/g-comver.adb (GNAT_Version_Address): New;
	(GNAT_Version): Use GNAT_Version_Address to disable LTO warning.

2021-06-18  Javier Miranda  <miranda@adacore.com>

	* einfo.ads (Is_Ada_2022_Only): Adding documentation.
	* gen_il-fields.ads (Is_Ada_2022_Only): New flag.
	* gen_il-gen-gen_entities.adb (Is_Ada_2022_Only): New flag.
	* itypes.adb (Create_Null_Excluding_Itype): Inherit
	Is_Ada_2022_Only.
	* sem_ch3.adb (Check_Abstract_Overriding): Skip reporting error
	on Ada 2022 only subprograms that require overriding if we are
	not in Ada 2022 mode.
	(Derive_Subprogram): Inherit Is_Ada_2022_Only.
	* sem_ch6.adb (Check_Overriding_Indicator): Inherit
	Is_Ada_2022_Only.
	(New_Overloaded_Entity): Inherit Is_Ada_2022_Only.
	* sem_ch7.adb (Declare_Inherited_Private_Subprograms): Inherit
	Is_Ada_2022_Only.
	(Preserve_Full_Attributes): Inherit Is_Ada_2022_Only.
	* sem_disp.adb (Find_Hidden_Overridden_Primitive): Inherit
	Is_Ada_2022_Only.
	(Override_Dispatching_Operation): Inherit Is_Ada_2022_Only.
	* sem_prag.adb (Analyze_Pragma): Allow form with argument for
	Ada 2022.
	* sem_type.adb: (Disambiguate): Deal with Is_Ada_2022_Only
	* lib-xref.adb (Generate_Reference): Error on static and
	dispatching calls to Ada 2022 subprograms that require
	overriding if we are not in Ada 2022 mode; warn on other
	references to Ada 2022 entities when not in Ada 2022 mode.
	* sem_ch13.adb (Inherit_Aspects_At_Freeze_Point): Inherit
	Ada_2020_Only.
	* libgnat/a-cdlili.ads (Empty): Adding pragma Ada_2022.
	* libgnat/a-cidlli.ads (Empty): Adding pragma Ada_2022.
	* libgnat/a-ciorma.ads (Empty): Adding pragma Ada_2022.
	* libgnat/a-cobove.ads (Empty): Adding pragma Ada_2022.
	* libgnat/a-coorma.ads (Empty): Adding pragma Ada_2022.
	(New_Vector): Adding pragma Ada_2022.
	(Insert_Vector): Adding pragma Ada_2022.
	(Prepend_Vector): Adding pragma Ada_2022.
	(Append_Vector): Adding pragma Ada_2022.

2021-06-17  Arnaud Charlet  <charlet@adacore.com>

	* sem_ch3.adb (Check_Ops_From_Incomplete_Type): Protect against
	no Primitive_Operations.

2021-06-17  Vadim Godunko  <godunko@adacore.com>

	* libgnat/a-strunb__shared.ads (Allocate): Additional parameter
	to provide additional amount of space to be allocated.
	* libgnat/a-strunb__shared.adb (Aligned_Max_Length): Limit
	length to Natural'Last when requested length is larger than it.
	(Allocate): Merge two slightly different implementations into
	one.

2021-06-17  Gary Dismukes  <dismukes@adacore.com>

	* checks.adb (Discrete_Range_Cond): For an index subtype that
	has a fixed lower bound, require that the range's lower bound
	match that of the subtype.
	(Selected_Range_Checks): Warn about the case where a static
	lower bound does not equal an index subtype's fixed lower bound.
	* einfo.ads (Is_Fixed_Lower_Bound_Array_Subtype,
	Is_Fixed_Lower_Bound_Index_Subtype): Document new entity flag.
	* exp_ch4.adb (Expand_N_Type_Conversion): If the operand is of
	an unconstrained array subtype with fixed lower bound, then
	Expand_Sliding_Conversion is applied to the operand.
	* exp_ch6.adb (Expand_Simple_Function_Return): If the result
	subtype is an unconstrained array subtype with fixed lower
	bound, then Expand_Sliding_Conversion is applied to the return
	object.
	* exp_util.ads (Expand_Sliding_Conversion): New procedure for
	applying a sliding subtype conversion to an array object of a
	fixed-lower-bound subtype when needed.
	* exp_util.adb: Add with_clause for Freeze.
	(Expand_Sliding_Conversion): New procedure for applying a
	sliding subtype conversion to an array object of a
	fixed-lower-bound subtype when needed.  It traverses the indexes
	of the unconstrained array type/subtype to create a target
	constrained subtype and rewrites the array object to be a
	conversion to that subtype, when there's at least one index
	whose lower bound does not statically match the fixed-lower
	bound of the target subtype.
	* gen_il-fields.ads (type Opt_Field_Enum): Add literals
	Is_Fixed_Lower_Bound_Array_Subtype and
	Is_Fixed_Lower_Bound_Index_Subtype for new flags on type
	entities.
	* gen_il-gen-gen_entities.adb: Add calls to
	Create_Semantic_Field for the new fixed-lower-bound flags on
	type entities.
	* par-ch3.adb (P_Array_Type_Definition): Add handling for
	parsing of fixed-lower-bound index ranges in unconstrained array
	types. Report an error if such an index is encountered and GNAT
	language extensions are not enabled.
	(P_Index_Subtype_Def_With_Fixed_Lower_Bound): Support procedure
	for parsing unconstrained index ranges.
	(P_Index_Or_Discriminant_Constraint): Add handling for parsing
	of index constraints that specify ranges with fixed lower
	bounds. Report an error if such an index is encountered and GNAT
	language extensions are not enabled.
	* sem_ch3.adb (Analyze_Object_Declaration): If the object's
	nominal subtype is an array subtype with fixed lower bound, then
	Expand_Sliding_Conversion is applied to the object.
	(Array_Type_Declaration): Mark the array type and the subtypes
	of any indexes that specify a fixed lower bound as being
	fixed-lower-bound subtypes, and set the High_bound of the range
	of such an index to the upper bound of the named subtype.
	(Constrain_Array): For an array subtype with one or more index
	ranges specifying a fixed lower bound, set Is_Constrained to
	False and set the array subtype's
	Is_Fixed_Lower_Bound_Array_Subtype flag to True.
	(Constrain_Index): Mark the subtypes of an index that specifies
	a fixed lower bound as being a fixed-lower-bound index subtype,
	and set the High_bound of the range of such an index to the
	upper bound of the base type of the array type's corresponding
	index.
	* sem_res.adb (Resolve_Actuals): If a formal is of an
	unconstrained array subtype with fixed lower bound, then
	Expand_Sliding_Conversion is applied to the actual.
	* sem_util.adb (Build_Actual_Subtype): If the actual subtype
	corresponds to an unconstrained array subtype having any indexes
	with fixed lower bounds, then set the lower bounds of any such
	indexes of the actual subtype to the appropriate fixed lower
	bound of the formal subtype (rather than taking it from the
	formal itself).
	* sprint.adb (Sprint_Node_Actual, case N_Range): If a range's
	Etype has a fixed lower bound, then print "<>" rather than the
	High_Bound of the range.

2021-06-17  Bob Duff  <duff@adacore.com>

	* sem_util.adb, sem_util.ads (Has_Access_Values): New formal
	Include_Internal to indicate whether internal types should be
	included.
	* sem_warn.adb (Check_References): Change E_Out_Parameter to
	Formal_Kind, to match the comment about Spec_Entity.  Pass
	Include_Internal => False to Has_Access_Values, so that we warn
	on types with access values that happen to be in internal types,
	such as Unbounded_String.
	* sem_attr.adb (Attribute_Has_Access_Values): Pass
	Include_Internal => True to Has_Access_Values, to preserve
	existing behavior.
	* libgnat/g-rewdat.adb (Do_Output): Change B from 'in out' to
	'in', to avoid warning enabled by the change to sem_warn.adb.
	* libgnat/s-objrea.adb (Check_Read_Offset): Change S from 'in
	out' to 'in', to avoid warning enabled by the change to
	sem_warn.adb.

2021-06-17  Steve Baird  <baird@adacore.com>

	* exp_ch5.adb
	(Expand_N_Case_Statement.Expand_General_Case_Statement): New
	subprogram.
	(Expand_N_Case_Statement): If extensions are allowed and the
	case selector is not of a discrete type, then call
	Expand_General_Case_Statement to generate expansion instead of
	flagging the non-discrete selector as an error.
	* sem_case.ads (Is_Case_Choice_Pattern): New Boolean-valued
	function for testing whether a given expression occurs as part
	of a case choice pattern.
	* sem_case.adb (Composite_Case_Ops): New package providing
	support routines for the new form of case statements. This
	includes a nested package, Composite_Case_Ops.Value_Sets, which
	encapsulates the "representative values" implementation of
	composite value sets.
	(Check_Choices.Check_Case_Pattern_Choices): New procedure for
	semantic checking of non-discrete case choices. This includes
	the checks pertaining to coverage and overlapping.
	(Check_Choices.Check_Composite_Case_Selector): New procedure for
	semantic checking of non-discrete case selectors.
	(Check_Choices): If extensions are allowed then a non-discrete
	selector type no longer implies that an error must have been
	flagged earlier.  Instead of simply returning, call
	Check_Composite_Case_Selector and Check_Case_Pattern_Choices.
	(Is_Case_Choice_Pattern): Body of new function declared in
	sem_case.ads .
	* sem_ch5.adb (Analyze_Case_Statement): If extensions are
	allowed, then we can't use RM 5.4's "The selecting_expression is
	expected to be of any discrete type" name resolution rule.
	Handle the case where the type of the selecting expression is
	not discrete, as well as the new ambiguous-name-resolution error
	cases made possible by this change.
	* sem_res.adb (Resolve_Entity_Name): It is ok to treat the name
	of a type or subtype as an expression if it is part of a case
	choice pattern, as in "(Field1 => Positive, Field2 => <>)".
	* exp_aggr.adb (Expand_Record_Aggregate): Do not expand case
	choice aggregates.
	* gen_il-fields.ads: Define two new node attributes,
	Binding_Chars and Multidefined_Bindings.
	* gen_il-gen-gen_nodes.adb: The new Multidefined_Bindings
	attribute is Boolean-valued and may be set on
	N_Case_Statement_Alternative nodes. The new Binding_Chars
	attribute is Name_Id-valued and may be set on
	N_Component_Association nodes.
	* par-ch4.adb (P_Record_Or_Array_Component_Association): When
	parsing a component association, check for both new syntax forms
	used to specify a bound value in a case-choice aggregate.  In
	the case of a box value, an identifier may occur within the box,
	as in "Foo => <Abc>" instead of "Foo => <>". In the more general
	case, an expression (or a box) may be followed by "is
	<identifier>", as in
	"Foo => Bar is Abc" instead of just "Foo => Bar".
	* sem_aggr.adb (Resolve_Record_Aggregate): Do not transform box
	component values in a case-choice aggregate.
	* sinfo.ads: Provide comments for the new attributes added in
	gen_il-fields.ads.
	* doc/gnat_rm/implementation_defined_pragmas.rst: Describe this
	new feature in documentation for pragma Extensions_Allowed.
	* gnat_rm.texi: Regenerate.

2021-06-17  Arnaud Charlet  <charlet@adacore.com>

	* exp_ch4.adb (Expand_N_Expression_With_Actions.Process_Action):
	Do not abandon processing on a nested N_Expression_With_Actions
	or N_Loop_Statement, otherwise we may miss some transient
	declarations.

2021-06-17  Arnaud Charlet  <charlet@adacore.com>

	* exp_util.adb (Find_Hook_Context): Do not stop on an aggregate
	node.

2021-06-17  Piotr Trojanek  <trojanek@adacore.com>

	* sem_util.adb (Is_Valid_Renaming): Check not only indexed
	components, but slices too.

2021-06-17  Piotr Trojanek  <trojanek@adacore.com>

	* sem_ch3.adb (Analyze_Private_Extension_Declaration): Check
	No_Wide_Characters restriction after rejecting illegal parent
	types.
	(Derived_Type_Declaration): Likewise.
	(Find_Type_Of_Subtype_Indic): Remove check for
	No_Wide_Characters restriction, which was done too early.

2021-06-17  Piotr Trojanek  <trojanek@adacore.com>

	* sem_util.adb (Is_Valid_Renaming): Body moved from its nested
	routine.

2021-06-17  Gary Dismukes  <dismukes@adacore.com>

	* sem_ch12.adb (Instantiate_Type): If the actual type for an
	incomplete formal type is also incomplete, but has a Full_View,
	use the Full_View of the actual type rather than the incomplete
	view.

2021-06-17  Piotr Trojanek  <trojanek@adacore.com>

	* doc/gnat_ugn/building_executable_programs_with_gnat.rst
	(-gnatw.I): Remove double period at the end of sentence.
	* gnat_ugn.texi: Regenerate.

2021-06-17  Piotr Trojanek  <trojanek@adacore.com>

	* sem_util.adb (Denotes_Same_Object): Call Get_Index_Bounds with
	the range of a slice object, not its type.

2021-06-17  Piotr Trojanek  <trojanek@adacore.com>

	* sem_warn.adb (Warn_On_Overlapping_Actuals): Fix style;
	refactor repeated calls to Nkind; remove early RETURN.

2021-06-17  Piotr Trojanek  <trojanek@adacore.com>

	* sem_warn.adb (Warn_On_Overlapping_Actuals): Ignore formal of
	generic types, but keep examining other parameters.

2021-06-17  Piotr Trojanek  <trojanek@adacore.com>

	* sem_warn.adb (Warn_On_Overlapping_Actuals): Remove dead code.

2021-06-17  Piotr Trojanek  <trojanek@adacore.com>

	* sem_warn.adb (Warn_On_Overlapping_Actuals): Remove repeated
	code.

2021-06-17  Piotr Trojanek  <trojanek@adacore.com>

	* checks.adb (Overlap_Check): Replace Set_Casing with
	Adjust_Name_Case and adapt surrounding code as needed.

2021-06-17  Arnaud Charlet  <charlet@adacore.com>

	* libgnat/s-putaim.ads, libgnat/s-putaim.adb: Move...
	* libgnarl/s-putaim.ads, libgnarl/s-putaim.adb: ... here.

2021-06-17  Arnaud Charlet  <charlet@adacore.com>

	* uintp.ads, uintp.adb (UI_To_Unsigned_64): New.

2021-06-17  Piotr Trojanek  <trojanek@adacore.com>

	* sem_prag.adb (Get_Overflow_Mode): Reword error message.
	* switch-c.adb (Get_Overflow_Mode): Likewise.

2021-06-17  Richard Kenner  <kenner@adacore.com>

	* exp_util.adb (Expand_Static_Predicates_In_Choices): Handle
	Others_Discrete_Choices in N_Others_Choice.

2021-06-17  Arnaud Charlet  <charlet@adacore.com>

	* atree.adb: Remove redundant comment with spec.
	* sem_warn.adb: Fix typo in comment.

2021-06-17  Arnaud Charlet  <charlet@adacore.com>

	* atree.adb: Do not suppress checks.

2021-06-17  Justin Squirek  <squirek@adacore.com>

	* exp_ch3.adb (Check_Missing_Others): Add comment.
	(Build_Initialization_Call): Remove inaccurate accessibility
	comment.
	* sem_ch12.adb (Analyze_Generic_Subprogram_Declaration): Remove
	test for Ada2012.
	(Analyze_Package_Instantiation): Remove speculative comment.
	(Inline_Instance_Body): Add comments for loops.
	(Build_Subprogram_Renaming): Remove comment about fix being
	partial and "ugly."
	(Instantiate_Subprogram_Body): Remove comment referencing DEC
	related internal issue.
	(Subtypes_Match): Add comment and simplify anonymous access
	test.
	(Is_Global): Add test for when E is an expanded name, and
	calculate the scope accordingly.
	* sem_ch6.adb (Analyze_Function_Return): Update comment
	regarding accessibility, and add check for
	Warn_On_Ada_2012_Compatibility.
	(Mask_Type_Refs): Add comments.
	(Analyze_Subprogram_Declaration): Remove mysterious suppression
	of elaboration checks.
	* sem_ch7.adb (Preserve_Full_Attributes): Preserve Is_Atomic
	value.
	* sem_ch8.adb (Most_Descendant_Use_Clause): Remove comment.
	(Note_Redundant_Use): Fix calls to Find_First_Use to be
	Find_Most_Prev.
	(Get_Object_Name): Modify error message to be more descriptive.
	(Known_But_Visible): Remove mysterious special case for
	GNAT_Mode.
	(Find_First_Use): Removed.
	(Find_Most_Prev): Renamed from Find_First_Use.
	* sem_prag.adb (Check_Static_Constraint): Add comments to
	routine.

2021-06-17  Bob Duff  <duff@adacore.com>

	* treepr.adb (Print_Node): Display the Entity or Associated_Node
	fields if appropriate.
	* sinfo-utils.ads (F_Associated_Node, F_Entity): Remove. These
	are no longer needed.

2021-06-17  Piotr Trojanek  <trojanek@adacore.com>

	* checks.adb (Apply_Parameter_Aliasing_Checks): Replace calls to
	Is_Object_Reference with calls to Is_Name_Reference; remove
	asymmetric condition that only detected an aggregate as the
	first actual (aggregate objects were just a special case of an
	object reference that was not a name).

2021-06-17  Bob Duff  <duff@adacore.com>

	* gen_il-gen.adb, gen_il-internals.ads: Generate field
	enumeration literals with "F_" prefix.  Update all generated
	references accordingly.
	* atree.adb, einfo-utils.adb, sem_ch3.adb, sem_ch5.adb,
	sem_ch6.adb, sem_ch8.adb, sinfo-cn.adb, sinfo-utils.adb,
	sinfo-utils.ads, treepr.adb: Add "F_" prefix to all uses of the
	field enumeration literals.

2021-06-17  Arnaud Charlet  <charlet@adacore.com>

	* libgnat/i-c.ads, libgnat/i-cexten.ads,
	libgnat/i-cexten__128.ads: bool renamed C_bool.

2021-06-17  Piotr Trojanek  <trojanek@adacore.com>

	* sem_ch4.adb (Analyze_Allocator): Reject allocators in
	restricted contexts.

2021-06-17  Arnaud Charlet  <charlet@adacore.com>

	* gcc-interface/Make-lang.in: Use libgnat.so if libgnat.a cannot
	be found.

2021-06-16  Piotr Trojanek  <trojanek@adacore.com>

	* sem_util.adb (Is_Volatile_Function): Follow the exact wording
	of SPARK (regarding volatile functions) and Ada (regarding
	protected functions).

2021-06-16  Piotr Trojanek  <trojanek@adacore.com>

	* sem_util.adb (Is_OK_Volatile_Context): All references to
	volatile objects are legal in preanalysis.
	(Within_Volatile_Function): Previously it was wrongly called on
	Empty entities; now it is only called on E_Return_Statement,
	which allow the body to be greatly simplified.

2021-06-16  Yannick Moy  <moy@adacore.com>

	* sem_res.adb (Set_Slice_Subtype): Revert special-case
	introduced previously, which is not needed as Itypes created for
	slices are precisely always used.

2021-06-16  Eric Botcazou  <ebotcazou@adacore.com>

	* urealp.adb (Scale): Change first paramter to Uint and adjust.
	(Equivalent_Decimal_Exponent): Pass U.Den directly to Scale.
	* libgnat/s-exponr.adb (Negative): Rename to...
	(Safe_Negative): ...this and change its lower bound.
	(Exponr): Adjust to above renaming and deal with Integer'First.

2021-06-16  Piotr Trojanek  <trojanek@adacore.com>

	* sem_res.adb (Flag_Effectively_Volatile_Objects): Detect also
	allocators within restricted contexts and not just entity names.
	(Resolve_Actuals): Remove duplicated code for detecting
	restricted contexts; it is now exclusively done in
	Is_OK_Volatile_Context.
	(Resolve_Entity_Name): Adapt to new parameter of
	Is_OK_Volatile_Context.
	* sem_util.ads, sem_util.adb (Is_OK_Volatile_Context): Adapt to
	handle contexts both inside and outside of subprogram call
	actual parameters.
	(Within_Subprogram_Call): Remove; now handled by
	Is_OK_Volatile_Context itself and its parameter.

2021-06-16  Piotr Trojanek  <trojanek@adacore.com>

	* sinput.adb (Sloc_Range): Refactor several repeated calls to
	Sloc and two comparisons with No_Location.

2021-06-16  Piotr Trojanek  <trojanek@adacore.com>

	* checks.adb (Apply_Scalar_Range_Check): Fix handling of check depending
	on the parameter passing mechanism.  Grammar adjustment ("has"
	=> "have").
	(Parameter_Passing_Mechanism_Specified): Add a hyphen in a comment.

2021-06-16  Piotr Trojanek  <trojanek@adacore.com>

	* exp_ch3.adb (Build_Slice_Assignment): Remove unused
	initialization.

2021-06-16  Piotr Trojanek  <trojanek@adacore.com>

	* restrict.adb, sem_attr.adb, types.ads: Fix typos in
	"occuring"; refill comment as necessary.

2021-06-16  Piotr Trojanek  <trojanek@adacore.com>

	* sem_util.ads (Is_Actual_Parameter): Update comment.
	* sem_util.adb (Is_Actual_Parameter): Also detect entry parameters.

2021-06-16  Arnaud Charlet  <charlet@adacore.com>

	* rtsfind.ads, libgnarl/s-taskin.ads, exp_ch3.adb, exp_ch4.adb,
	exp_ch6.adb, exp_ch9.adb, sem_ch6.adb: Move master related
	entities to the expander directly.

2021-06-16  Piotr Trojanek  <trojanek@adacore.com>

	* sem_res.adb (Is_Assignment_Or_Object_Expression): Whitespace
	cleanup.
	(Is_Attribute_Expression): Prevent AST climbing from going to
	the root of the compilation unit.

2021-06-16  Steve Baird  <baird@adacore.com>

	* doc/gnat_rm/implementation_advice.rst: Add a section for RM
	A.18 .
	* gnat_rm.texi: Regenerate.

2021-06-16  Justin Squirek  <squirek@adacore.com>

	* sem_ch13.adb (Analyze_Enumeration_Representation_Clause): Add
	check for the mixing of entries.

2021-06-16  Justin Squirek  <squirek@adacore.com>

	* sem_ch13.adb (Make_Aitem_Pragma): Check for static expressions
	in Priority aspect arguments for restriction Static_Priorities.

2021-06-16  Justin Squirek  <squirek@adacore.com>

	* sem_util.adb (Accessibility_Level): Take into account
	renamings of loop parameters.

2021-06-16  Matthieu Eyraud  <eyraud@adacore.com>

	* par_sco.adb (Set_Statement_Entry): Change sloc for dominance
	marker.
	(Traverse_One): Fix typo.
	(Output_Header): Fix comment.

2021-06-16  Richard Kenner  <kenner@adacore.com>

	* exp_unst.adb (Register_Subprogram): Don't look for aliases for
	subprograms that are generic.  Reorder tests for efficiency.

2021-06-16  Eric Botcazou  <ebotcazou@adacore.com>

	* sem_util.adb (Incomplete_Or_Partial_View): Retrieve the scope of
	the parameter and use it to find its incomplete view, if any.

2021-06-16  Eric Botcazou  <ebotcazou@adacore.com>

	* freeze.adb (Check_No_Parts_Violations): Return earlier if the
	type is elementary or does not come from source.

2021-06-16  Bob Duff  <duff@adacore.com>

	* ghost.adb: Add another special case where full analysis is
	needed. This bug is due to quirks in the way
	Mark_And_Set_Ghost_Assignment works (it happens very early,
	before name resolution is done).

2021-06-16  Eric Botcazou  <ebotcazou@adacore.com>

	* sem_util.adb (Current_Entity_In_Scope): Reimplement.

2021-06-16  Piotr Trojanek  <trojanek@adacore.com>

	* sem_ch8.adb (End_Scope): Remove extra parens.

2021-06-16  Javier Miranda  <miranda@adacore.com>

	* exp_disp.adb (Build_Class_Wide_Check): Ensure that evaluation
	of actuals is side effects free (since the check duplicates
	actuals).

2021-06-16  Ed Schonberg  <schonberg@adacore.com>

	* sem_res.adb (Resolve_Raise_Expression): Apply Ada_2020 rules
	concerning the need for parentheses around Raise_Expressions in
	various contexts.

2021-06-16  Piotr Trojanek  <trojanek@adacore.com>

	* sem_ch13.adb (Validate_Unchecked_Conversion): Move detection
	of generic types before switching to their private views; fix
	style in using AND THEN.

2021-06-16  Arnaud Charlet  <charlet@adacore.com>

	* sem_ch3.adb (Analyze_Component_Declaration): Do not special
	case raise expressions.

2021-06-16  Sergey Rybin  <rybin@adacore.com>

	* doc/gnat_ugn/building_executable_programs_with_gnat.rst:
	Instead of referring to the formatting of the Ada examples in
	Ada RM add use the list of checks that are actually performed.
	* gnat_ugn.texi: Regenerate.

2021-06-16  Eric Botcazou  <ebotcazou@adacore.com>

	* initialize.c: Do not include vxWorks.h and fcntl.h from here.
	(__gnat_initialize) [__MINGW32__]: Remove #ifdef and attribute
	(__gnat_initialize) [init_float]: Delete.
	(__gnat_initialize) [VxWorks]: Likewise.
	(__gnat_initialize) [PA-RISC HP-UX 10]: Likewise.
	* runtime.h: Add comment about vxWorks.h include.

2021-06-16  Eric Botcazou  <ebotcazou@adacore.com>

	* libgnat/s-except.ads (ZCX_By_Default): Delete.
	(Require_Body): Likewise.
	* libgnat/s-except.adb: Replace body with pragma No_Body.

2021-06-15  Steve Baird  <baird@adacore.com>

	* exp_util.adb (Kill_Dead_Code): Generalize the existing
	handling of if statements to handle case statements similarly.

2021-06-15  Eric Botcazou  <ebotcazou@adacore.com>

	* raise.h (_gnat_builtin_longjmp): Delete.
	(set_gnat_exit_status): Likewise.

2021-06-15  Piotr Trojanek  <trojanek@adacore.com>

	* exp_util.adb (Possible_Side_Effect_In_SPARK): Handle component
	declaration just like full type and subtype declarations.

2021-06-15  Yannick Moy  <moy@adacore.com>

	* errout.adb (First_And_Last_Node): Also apply to arbitrary late
	declarations, not only subprogram specs.

2021-06-15  Bob Duff  <duff@adacore.com>

	* sem_ch3.adb (Make_Class_Wide_Type): Make sure all the calls to
	Reinit_Field_To_Zero are for the correct Ekinds.

2021-06-15  Bob Duff  <duff@adacore.com>

	* aspects.ads (No_Task_Parts): New aspect.
	* snames.ads-tmpl: Add the aspect name.
	* exp_ch6.adb (Might_Have_Tasks): Return False if this is a
	class-wide type whose specific type has No_Task_Parts.
	* freeze.adb (Check_No_Parts_Violations): This is an adaptation
	of the procedure formerly known as
	Check_No_Controlled_Parts_Violations, which now supports both
	No_Controlled_Parts and No_Task_Parts.  It takes a parameter
	indicating which aspect is being checked.
	(Freeze_Entity): Call Check_No_Parts_Violations for both
	aspects.
	* sem_ch13.adb (Analyze_Aspect_Specifications): The code for
	Aspect_No_Controlled_Parts already works as is with
	Aspect_No_Task_Parts.
	* libgnat/a-iteint.ads: Add No_Task_Parts aspect to the two
	iterator iterfaces.
	* doc/gnat_rm/implementation_defined_aspects.rst: Add
	documentation for the No_Task_Parts aspect.
	* gnat_rm.texi: Regenerate.

2021-06-15  Arnaud Charlet  <charlet@adacore.com>

	* exp_unst.adb (Unnest_Subprogram.Build_Table.Visit_Node): Fix
	handling of scopes for subprogram calls.

2021-06-15  Piotr Trojanek  <trojanek@adacore.com>

	* sem_prag.adb: Fix typos in comments related to access types.
	* sem_util.adb (Is_Access_Variable): Stronger condition.

2021-06-15  Arnaud Charlet  <charlet@adacore.com>

	* Make-generated.in: Add rule to copy runtime files needed
	during stage1.
	* raise.c: Remove obsolete symbols used during bootstrap.
	* gcc-interface/Make-lang.in: Do not use libgnat sources during
	stage1.
	(GNAT_ADA_OBJS, GNATBIND_OBJS): Split in two parts, the common
	part and the part only used outside of stage1.
	(ADA_GENERATED_FILES): Add runtime files needed during bootstrap
	when recent APIs are needed.
	(ada/b_gnatb.adb): Remove prerequisite.
	* gcc-interface/system.ads: Remove obsolete entries.

2021-06-15  Eric Botcazou  <ebotcazou@adacore.com>

	* raise-gcc.c (__gnat_personality_seh0): Use PERSONALITY_FUNCTION.

2021-06-15  Ed Schonberg  <schonberg@adacore.com>

	* sem_util.adb (Is_Confirming): Separate the handling of
	Implicit_Dereference, for which no pragma is generated but which
	is already checked for legality in Sem_Ch13, including renamed
	discriminants in a derived type.
	(Is_Confirming, Same_Name): For expanded names, only check
	matching of selector, because prefix may correspond to original
	and derived types with different names and/or scopes. Semantic
	checks on aspect expression have already verified its legality.
	Add comments regarding possible gaps in RM description of the
	feature.

2021-06-15  Gary Dismukes  <dismukes@adacore.com>

	* freeze.adb (Freeze_Subprogram): Don't propagate conventions
	Intrinsic or Entry to anonymous access-to-subprogram types
	associated with subprograms having those conventions. Update
	related comment.
	* sem_attr.adb (Resolve_Attribute, Attribute_*Access): Remove
	special-case warning code for cases where a called subprogram
	has convention Intrinsic as well as its formal's type (the
	expected type for the Access attribute), since this case can no
	longer occur.

2021-06-15  Piotr Trojanek  <trojanek@adacore.com>

	* exp_imgv.adb (Expand_User_Defined_Enumeration_Image): Fix
	typos.

2021-06-15  Bob Duff  <duff@adacore.com>

	* einfo-utils.adb (Known_Component_Size,
	Known_Static_Component_Size, Unknown_Component_Size): Use
	Implementation_Base_Type instead of Base_Type.

2021-06-15  Bob Duff  <duff@adacore.com>

	* gen_il-gen-gen_entities.adb (E_Loop_Parameter): Add
	Interface_Name field.

2021-06-15  Bob Duff  <duff@adacore.com>

	* sem_cat.adb (Check_Non_Static_Default_Expr): Allow nonstatic
	expression in predefined unit with pragma Preelaborate.

2021-06-15  Yannick Moy  <moy@adacore.com>

	* doc/gnat_rm/intrinsic_subprograms.rst: More details on shift
	operations for signed types. Also add the missing Import and
	Convention on the example.
	* gnat_rm.texi: Regenerate.

2021-06-15  Eric Botcazou  <ebotcazou@adacore.com>

	* raise-gcc.c: Include <cstdarg> instead of <stdarg.h> in C++.
	Include <stdbool.h> and unconditionally <stdlib.h> in C.

2021-06-15  Piotr Trojanek  <trojanek@adacore.com>

	* sem_util.ads (Find_Overlaid_Entity): Simplify comment for
	spec.
	* sem_util.adb (Find_Overlaid_Entity): Remove defensive code
	from body.

2021-06-15  Eric Botcazou  <ebotcazou@adacore.com>

	* argv.c: Add include of <stdlib.h> for the runtime.
	(gnat_argv): Change type to char ** and initialize to NULL.
	(gnat_envp): Likewise.
	* argv-lynxos178-raven-cert.c: Add include of <stdlib.h>.
	(gnat_argv): Change type to char ** and initialize to NULL.
	(gnat_envp): Likewise.

2021-06-15  Bob Duff  <duff@adacore.com>

	* gen_il-gen.adb (Setter_Needs_Parent): Add missing
	Then_Actions.  Fix self-contradictory comment.
	* exp_util.adb (Insert_Actions): Minor comment improvments.

2021-06-15  Arnaud Charlet  <charlet@adacore.com>

	* sem_eval.adb (Eval_Logical_Op, Test_Expression_Is_Foldable):
	Add support for folding more "and"/"or" expressions.
	* exp_util.adb (Side_Effect_Free): Fix handling of membership
	tests.

2021-06-15  Piotr Trojanek  <trojanek@adacore.com>

	* sem_res.adb (Resolve_Actual): Replace repeated calls to
	"Etype (F)" with references to "F_Typ", which keeps the results
	of exactly that call.

2021-06-15  Bob Duff  <duff@adacore.com>

	* gen_il-gen.adb (To_Bit_Offset): Use 'Base to avoid overflow in
	computations in Last_Bit when Offset = 'Last.
	(Choose_Offset): Give a better error message when we run out of
	fields.  In particular, point out that
	Gen_IL.Internals.Bit_Offset'Last needs to be increased.

2021-06-15  Bob Duff  <duff@adacore.com>

	* atree.ads, einfo-utils.ads, einfo-utils.adb, fe.h, gen_il.adb,
	gen_il.ads, gen_il-gen-gen_entities.adb,
	gen_il-gen-gen_nodes.adb, sem_ch12.adb, sem_ch3.adb,
	sem_util.adb, sinfo-utils.ads, treepr.adb, types.ads: Clean up
	??? comments and other comments.
	* atree.adb: Clean up ??? comments and other comments.
	(Validate_Node): Fix bug: "Off_0 (N) < Off_L (N)"
	should be "Off_0 (N) <= Off_L (N)".
	* gen_il-gen.adb, gen_il-gen.ads: Clean up ???
	comments and other comments.  Add support for getter-specific
	and setter-specific preconditions.  Detect the error of putting
	a field in the wrong subrange.  Misc cleanup.
	(Node_Field vs. Entity_Field): Clean up Nmake.  Improve
	comments.
	* gen_il-utils.ads: Misc cleanup. Move...
	* gen_il-internals.ads: ... here.
	* gen_il-utils.adb: Misc cleanup. Move...
	* gen_il-internals.adb: ... here.
	* gen_il-fields.ads: Move Was_Default_Init_Box_Association,
	which was in the wrong subrange.  Add comments.  Misc cleanup.
	* gen_il-types.ads: Add Named_Access_Kind.
	* sinfo-cn.adb: Clean up ??? comments and other comments.
	Remove redundant assertions.
	* einfo.ads, sinfo.ads: Clean up ??? comments and other
	comments.  Remove all the comments indicating field offsets.
	These are obsolete now that Gen_IL computes the offsets
	automatically.

2021-06-15  Arnaud Charlet  <charlet@adacore.com>

	* einfo.ads, errout.adb, errout.ads, exp_aggr.adb, exp_ch5.adb,
	exp_ch6.adb, exp_ch8.adb, exp_ch9.adb, exp_imgv.adb,
	exp_put_image.adb, fe.h, impunit.adb, impunit.ads,
	libgnat/a-cobove.ads, libgnat/a-convec.ads, opt.ads,
	par-ch12.adb, par-ch3.adb, par-ch4.adb, par-ch5.adb,
	par-ch6.adb, par-prag.adb, par-util.adb, scans.ads, scng.adb,
	sem_aggr.adb, sem_attr.adb, sem_ch10.adb, sem_ch12.adb,
	sem_ch13.adb, sem_ch3.adb, sem_ch5.adb, sem_ch6.adb,
	sem_ch8.adb, sem_elab.adb, sem_eval.adb, sem_prag.adb,
	sem_res.adb, sem_type.adb, sem_util.adb, sem_util.ads,
	sinfo.ads, snames.ads-tmpl, sprint.adb, switch-c.adb, usage.adb,
	doc/gnat_ugn/building_executable_programs_with_gnat.rst,
	doc/gnat_rm/implementation_defined_aspects.rst,
	gcc-interface/trans.c: Update all references to Ada 2020 to Ada
	2022. Rename pragma Ada_2020 to Ada_2022.  Update documentation
	accordingly.
	* gnat_ugn.texi, gnat_rm.texi: Regenerate.

2021-06-15  Steve Baird  <baird@adacore.com>

	* sem_util.adb (Gather_Components): Factor the test that was
	already being used to govern emitting a pre-Ada_2020 error
	message into an expression function,
	OK_Scope_For_Discrim_Value_Error_Messages. Call that new
	function in two places: the point where the same test was being
	performed previously, and in governing emission of a newer
	Ada_2020 error message. In both cases, the out-mode parameter
	Gather_Components.Report_Errors is set to True even if no error
	messages are generated within Gather_Components.
	* sem_util.ads: Correct a comment.

2021-06-15  Richard Kenner  <kenner@adacore.com>

	* sem_ch3.adb (Array_Type_Declaration, Build_Derived_Type):
	Reinitialize Stored_Constraint when needed.
	(Set_Modular_Size): Likewise.
	* atree.adb: (Check_Vanishing_Fields): Add node id to debugging
	information.

2021-06-15  Bob Duff  <duff@adacore.com>

	* sem_util.adb (Propagate_Invariant_Attributes): Call
	Set_Has_Own_Invariants on the base type, because these are
	Base_Type_Only. The problem is that the base type of a type is
	indeed a base type when Set_Base_Type is called, but then the
	type is mutated into a subtype in rare cases.
	* atree.ads, atree.adb (Is_Entity): Export. Correct subtype of
	parameter in body.
	* gen_il-gen.adb: Improve getters so that "Pre => ..." can refer
	to the value of the field. Put Warnings (Off) on some with
	clauses that are not currently used, but might be used by such
	Pre's.

2021-06-15  Piotr Trojanek  <trojanek@adacore.com>

	* sem_ch3.adb (Access_Type_Declaration): Add comments to explain
	the ordering of Mutate_Kind and Set_Directly_Designated_Type;
	remove temporary setting of Ekind to E_Access_Type for building
	_master objects, since now the Ekind is already set to its final
	value. Move repeated code into Setup_Access_Type routine and use
	it so that Process_Subtype is executed before mutating the kind
	of the type entity.
	* gen_il-gen-gen_entities.adb (Gen_Entities): Remove
	Directly_Designated_Type from E_Void, E_Private_Record,
	E_Limited_Private_Type and Incomplete_Kind; now it only belongs
	to Access_Kind entities.
	* sem_util.adb: Minor reformatting.

2021-06-03  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/decl.c (gnat_to_gnu_entity) <E_Array_Type>: Add PAT
	local constant and use it throughout.  If it is set, use a ref-all
	pointer type for the pointer-to-array field of the fat pointer type.
	<E_Array_Subtype>: Add PAT local constant and use it throughout.

2021-05-26  Jakub Jelinek  <jakub@redhat.com>

	* init.c (__gnat_error_handler): Remove register keyword.

2021-05-25  Martin Liska  <mliska@suse.cz>

	* doc/share/conf.py: Fix Sphinx 4.0.x error.

2021-05-21  Piotr Trojanek  <trojanek@adacore.com>

	* gcc-interface/trans.c (Raise_Error_to_gnu): Add an assertion.

2021-05-21  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/utils.c (gnat_pushdecl): Fix typo in comment.
	* gcc-interface/utils2.c (build_simple_component_ref): Build NULL_EXPR
	if the offset of the field has overflowed.
	(build_component_ref): Add gigi checking assertion that the reference
	has been built and replace the discriminant check by a Program_Error.

2021-05-21  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/decl.c (gnat_to_gnu_entity) <E_Named_Integer>: Do
	not pass default value in call to create_var_decl.
	<E_Variable>: Likewise.
	<E_Record_Subtype>: Both pass true for const_flag and false for
	const_decl_allowed_p in call to create_var_decl.
	Small tweaks in the generic record type case.
	(elaborate_expression): Rename need_debug into need_for_debug and
	adjust throughout.
	(elaborate_expression_1): Likewise.  Pass Needs_Debug_Info instead
	of need_for_debug in call to create_var_decl.
	(elaborate_expression_2): Likewise.
	* gcc-interface/utils.c (maybe_pad_type): Pass false for
	const_decl_allowed_p in call to create_var_decl.

2021-05-21  Ghjuvan Lacambre  <lacambre@adacore.com>

	* gcc-interface/decl.c (gnat_to_gnu_entity): Replace ? with ??.
	(gnat_to_gnu_param): Likewise.
	(gnat_to_gnu_subprog_type): Likewise.
	(warn_on_field_placement): Likewise.
	(intrin_arglists_compatible_p): Likewise.
	* gcc-interface/trans.c (Pragma_to_gnu): Likewise.
	(gnat_to_gnu): Likewise.
	(validate_unchecked_conversion): Likewise.
	* gcc-interface/utils.c (maybe_pad_type): Likewise.

2021-05-21  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/decl.c (gnat_to_gnu_entity) <E_Array_Type>: Process
	the implementation type of a packed type implemented specially.

2021-05-21  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/decl.c (gnat_to_gnu_subprog_type): Always translate
	the Is_Pure flag into the "pure" attribute of GNU C.

2021-05-21  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/trans.c (Call_to_gnu): Restrict previous change
	to bitfields whose size is not equal to the type size.
	(gnat_to_gnu): Likewise.

2021-05-21  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/trans.c (Call_to_gnu): Minor tweaks.
	(gnat_to_gnu_external): Likewise.
	(Raise_Error_to_gnu): Return an empty statement list if there is a
	condition and it is always false.
	(gnat_to_gnu): Do not check for elaboration code a priori during the
	translation but a posteriori instead.

2021-05-21  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/trans.c (gnat_to_gnu) <N_Simple_Return_Statement>:
	Put a SLOC on the assignment from the return value to the return
	object in the copy-in/copy-out case.

2021-05-21  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/decl.c (gnat_to_gnu_entity) <E_Variable>: Replace
	CEIL_DIV_EXPR with EXACT_DIV_EXPR.
	* gcc-interface/misc.c (gnat_type_max_size): Likewise.
	* gcc-interface/utils.c (maybe_pad_type): Likewise.
	(finish_record_type): Likewise.  And always compute the unit size.

2021-05-14  Martin Liska  <mliska@suse.cz>

	* doc/Makefile: Add gnat-style target.
	* doc/share/conf.py: Likewise.
	* doc/gnat-style.rst: New file.

2021-05-12  Bob Duff  <duff@adacore.com>

	PR ada/100564
	* atree.adb (Change_Node): Do not call Zero_Slots on a Node_Id
	when the Nkind has not yet been set; call the other Zero_Slots
	that takes a range of slot offsets.  Call the new Mutate_Kind
	that takes an Old_Size, for the same reason -- the size cannot
	be computed without the Nkind.
	(Mutate_Nkind): New function that allows specifying the Old_Size.
	(Size_In_Slots): Assert that the Nkind has proper (nonzero) value.
	* atree.ads: Minor reformatting.

2021-05-12  Martin Liska  <mliska@suse.cz>

	* doc/share/conf.py: Do not use binary mode.
	Do not use u' literals as Python3 uses unicode by default.

2021-05-11  Martin Liska  <mliska@suse.cz>

	* gcc-interface/ada-tree.h (BUILT_IN_LIKELY): Use builtins
	from COROUTINES.
	(BUILT_IN_UNLIKELY): Likewise.

2021-05-11  Eric Botcazou  <ebotcazou@adacore.com>

	* gnatvsn.adb (Version_String): Rename to...
	(C_Version_String): ...this.
	(Gnat_Version_String): Adjust to above renaming.
	* version.c : Fix formatting glitches.

2021-05-10  Martin Liska  <mliska@suse.cz>

	PR bootstrap/100506
	* Make-generated.in: Replace version.c with ada/version.c.
	* gcc-interface/Make-lang.in: Add version.o to GNAT1_C_OBJS and
	GNATBIND_OBJS.
	* gcc-interface/Makefile.in: Replace version.c with ada/version.c.
	Add version.o to TOOLS_LIBS.
	* gnatvsn.adb: Replace version_string with gnat_version_string.
	* version.c: New file.

2021-05-10  Eric Botcazou  <ebotcazou@adacore.com>

	* einfo-utils.ads (Classification Attributes): Add pragma Inline.
	(Synthesized Attribute Functions): Move pragma Inline around.
	(Type Representation Attribute Predicates): Likewise.
	(Field Initialization Routines): Likewise.
	(Miscellaneous Subprogram): Likewise.

2021-05-10  Eric Botcazou  <ebotcazou@adacore.com>

	* atree.ads (Slot): Remove pragma Provide_Shift_Operators.
	(Shift_Left): New intrinsic function.
	(Shift_Right): Likewise.
	* atree.adb (Get_1_Bit_Val): Use Natural instead of Integer.
	(Get_2_Bit_Val): Likewise.
	(Get_4_Bit_Val): Likewise.
	(Get_8_Bit_Val): Likewise.
	(Set_1_Bit_Val): Likewise.
	(Set_2_Bit_Val): Likewise.
	(Set_4_Bit_Val): Likewise.
	(Set_8_Bit_Val): Likewise.

2021-05-10  Eric Botcazou  <ebotcazou@adacore.com>

	* atree.adb (Zero_Slots): Remove obsolete comment and add header.

2021-05-10  Eric Botcazou  <ebotcazou@adacore.com>

	* atree.h (Get_32_Bit_Field): Tidy up.
	(Get_32_Bit_Field_With_Default): Likewise.

2021-05-10  Eric Botcazou  <ebotcazou@adacore.com>

	* Make-generated.in (do_gen_il): Replace with...
	(ada/stamp-gen_il): ...this.  Do not copy files into generated/.

2021-05-10  Martin Liska  <mliska@suse.cz>

	* gcc-interface/utils.c (def_builtin_1): Use startswith
	function instead of strncmp.

2021-05-07  Piotr Trojanek  <trojanek@adacore.com>

	* einfo-utils.adb (Is_Access_Object_Type): Use
	Directly_Designated_Type.
	(Is_Access_Subprogram_Type): Use Directly_Designated_Type.
	(Set_Convention): Use plain Ekind.
	* gen_il-gen-gen_entities.adb (Type_Kind): Use plain Ekind.
	* sem_ch3.adb (Access_Type_Declaration): When seeing an illegal
	completion with an access type don't attempt to decorate the
	completion entity; previously the entity had its Ekind set to
	E_General_Access_Type or E_Access_Type, but its Designated_Type
	was empty, which caused a crash in freezing. (Actually, the
	error recovery in the surrounding context is still incomplete,
	e.g. we will crash when the illegal completion is an access to
	an unknown identifier).

2021-05-07  Bob Duff  <duff@adacore.com>

	* par_sco.adb: Align with/use clauses.
	(Traverse_Declarations_Or_Statements): Minor comment fix.
	* aspects.adb, atree.adb, atree.ads, checks.adb, comperr.adb,
	contracts.adb, cstand.adb, debug_a.adb, einfo-utils.adb,
	errout.adb, eval_fat.adb, exp_aggr.adb, expander.adb,
	exp_atag.adb, exp_attr.adb, exp_cg.adb, exp_ch11.adb,
	exp_ch12.adb, exp_ch13.adb, exp_ch2.adb, exp_ch3.adb,
	exp_ch4.adb, exp_ch5.adb, exp_ch6.adb, exp_ch7.adb, exp_ch8.adb,
	exp_ch9.adb, exp_code.adb, exp_dbug.adb, exp_disp.adb,
	exp_dist.adb, exp_fixd.adb, exp_imgv.adb, exp_intr.adb,
	exp_pakd.adb, exp_prag.adb, exp_put_image.adb, exp_sel.adb,
	exp_smem.adb, exp_spark.adb, exp_strm.adb, exp_tss.adb,
	exp_unst.adb, exp_util.adb, exp_util.ads, freeze.adb,
	frontend.adb, ghost.adb, gnat1drv.adb, gnat_cuda.adb,
	impunit.adb, inline.adb, itypes.adb, itypes.ads, layout.adb,
	lib.adb, lib-load.adb, lib-writ.adb, lib-xref.adb,
	lib-xref-spark_specific.adb, live.adb, nlists.adb, par.adb,
	par-ch11.adb, par-ch3.adb, par-ch5.adb, par-ch6.adb, pprint.adb,
	repinfo.adb, restrict.adb, rtsfind.adb, scil_ll.adb, scn.adb,
	sem.adb, sem_aggr.adb, sem_attr.adb, sem_aux.adb, sem_case.adb,
	sem_cat.adb, sem_ch10.adb, sem_ch11.adb, sem_ch12.adb,
	sem_ch13.adb, sem_ch2.adb, sem_ch3.adb, sem_ch4.adb,
	sem_ch5.adb, sem_ch6.adb, sem_ch7.adb, sem_ch8.adb, sem_ch9.adb,
	sem_dim.adb, sem_disp.adb, sem_dist.adb, sem_elab.adb,
	sem_elim.adb, sem_eval.adb, sem_intr.adb, sem_mech.adb,
	sem_prag.adb, sem_res.adb, sem_scil.adb, sem_smem.adb,
	sem_type.adb, sem_util.adb, sem_util.ads, sem_warn.adb,
	sinfo-cn.adb, sinfo-utils.ads, sinput.adb, sinput-l.adb,
	sprint.adb, style.adb, styleg.adb, tbuild.adb, tbuild.ads,
	treepr.adb, uname.adb: Align with/use clauses.

2021-05-07  Bob Duff  <duff@adacore.com>

	* atree.ads, atree.adb, gen_il-gen.ads: Fix comments and clean
	up ???  marks.  Rename Set_Ekind to be Mutate_Ekind.
	* einfo.ads, sinfo.ads: Likewise.  Change "definitive
	definition" to "official definition", because the former sounds
	redundant.  Rename Set_Ekind to be Mutate_Ekind.
	* checks.adb, contracts.adb, cstand.adb, exp_aggr.adb,
	exp_attr.adb, exp_ch11.adb, exp_ch3.adb, exp_ch5.adb,
	exp_ch6.adb, exp_ch7.adb, exp_ch9.adb, exp_disp.adb,
	exp_dist.adb, exp_imgv.adb, exp_intr.adb, exp_prag.adb,
	exp_unst.adb, exp_util.adb, gen_il-gen.adb, inline.adb,
	lib-writ.adb, lib-xref-spark_specific.adb, sem_aggr.adb,
	sem_ch10.adb, sem_ch11.adb, sem_ch12.adb, sem_ch13.adb,
	sem_ch3.adb, sem_ch5.adb, sem_ch6.adb, sem_ch7.adb, sem_ch8.adb,
	sem_ch9.adb, sem_dist.adb, sem_elab.adb, sem_prag.adb,
	sem_util.adb: Rename Set_Ekind to be Mutate_Ekind.

2021-05-07  Bob Duff  <duff@adacore.com>

	* atree.adb: Move nnd-related code from here, and leave a
	comment pointing to sinfo-utils.adb.
	* sinfo-utils.ads, sinfo-utils.adb: Move nnd-related code to
	here.

2021-05-07  Piotr Trojanek  <trojanek@adacore.com>

	* einfo.ads: Move Corresponding_Protected_Entry...
	* sinfo.ads: ... here.
	* exp_ch9.adb (Build_Entry_Body): Link procedure and entry
	bodies.
	* gen_il-fields.ads (Opt_Field_Enum): Add
	Corresponding_Entry_Body field to nodes; remove
	Corresponding_Protected_Entry field from entities.
	* gen_il-gen-gen_entities.adb (Gen_Entities): Remove
	Corresponding_Protected_Entry field from E_Void and
	E_Subprogram_Body.
	* gen_il-gen-gen_nodes.adb (Gen_Nodes): Add
	Corresponding_Entry_Body field to N_Subprogram_Body.
	* sem_ch6.adb (Analyze_Subprogram_Specification): Remove
	manipulation of Ekind and Corresponding_Protected_Entry added as
	part of the support for varsize-nodes.

2021-05-07  Bob Duff  <duff@adacore.com>

	* sem_ch3.adb (Process_Incomplete_Dependents): Reset
	Private_Dependents field to zero before calling Set_Ekind.  Also
	move Set_Etype to after Set_Ekind, because it's always best to
	set the Ekind as early as possible.
	* atree.adb: Improve debugging facilities for vanishing fields.

2021-05-07  Eric Botcazou  <ebotcazou@adacore.com>

	* atree.ads (Slot): Change to modular type.
	(Slot_1_Bit): Delete.
	(Slot_2_Bit): Likewise.
	(Slot_4_Bit): Likewise.
	(Slot_8_Bit): Likewise.
	(Slot_32_Bit): Likewise.
	* atree.adb (Get_1_Bit_Val): Adjust to above change.
	(Get_2_Bit_Val): Likewise.
	(Get_4_Bit_Val): Likewise.
	(Get_8_Bit_Val): Likewise.
	(Get_32_Bit_Val): Likewise.
	(Set_1_Bit_Val): Likewise.
	(Set_2_Bit_Val): Likewise.
	(Set_4_Bit_Val): Likewise.
	(Set_8_Bit_Val): Likewise.
	(Set_32_Bit_Val): Likewise.
	(Print_Atree_Info): Likewise.
	(Zero): Likewise.
	* atree.h (Get_1_Bit_Field): Likewise.
	(Get_2_Bit_Field): Likewise.
	(Get_4_Bit_Field): Likewise.
	(Get_8_Bit_Field): Likewise.
	(Get_32_Bit_Field): Likewise.
	(Get_32_Bit_Field_With_Default): Likewise.
	* types.h (slot_1_bit): Delete.
	(slot_2_bit): Likewise.
	(slot_4_bit): Likewise.
	(slot_8_bit): Likewise.
	(slot_32_bit): Likewise.
	(any_slot): Change to unsigned int.
	(Slot_Size): New macro.

2021-05-07  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/gigi.h (enum standard_datatype): Remove
	ADT_exception_data_name_id and add ADT_not_handled_by_others_name_id.
	(exception_data_name_id): Delete.
	(not_handled_by_others_name_id): New macro.
	* gcc-interface/decl.c (gnat_to_gnu_entity) <E_Exception>: Remove old
	kludge for exceptions.
	<E_Record_Type>: Likewise.
	(gnat_to_gnu_field): Force character type on Not_Handled_By_Others.
	* gcc-interface/misc.c (gnat_argv): Change type to char **.
	(gnat_init_options): Adjust accordingly.
	* gcc-interface/trans.c (gigi): Set not_handled_by_others_name_id
	and use it to set not_handled_by_others_decl.
	(Exception_Handler_to_gnu_fe_sjlj): Fix indentation.

2021-05-07  Eric Botcazou  <ebotcazou@adacore.com>

	* raise-gcc.c (__gnat_others_value): Remove const qualifier.
	(__gnat_all_others_value): Likewise.
	(__gnat_unhandled_others_value): Likewise.
	(GNAT_OTHERS): Cast to Exception_Id instead of _Unwind_Ptr.
	(GNAT_ALL_OTHERS): Likewise.
	(GNAT_UNHANDLED_OTHERS): Likewise.
	(Is_Handled_By_Others): Change parameter type to Exception_Id.
	(Language_For): Likewise.
	(Foreign_Data_For): Likewise.
	(is_handled_by): Likewise.  Adjust throughout, remove redundant
	line and fix indentation.
	* libgnat/a-exexpr.adb (Is_Handled_By_Others): Remove pragma and
	useless qualification from parameter type.
	(Foreign_Data_For): Likewise.
	(Language_For): Likewise.

2021-05-07  Eric Botcazou  <ebotcazou@adacore.com>

	* libgnat/s-stalib.ads (Exception_Data): Mark components as aliased.
	* stand.ads (Standard_Entity_Type): Enhance comments.
	* cstand.adb (Make_Component): Rename into...
	(Make_Aliased_Component): ...this; set Is_Aliased and Is_Independent
	flags on the component.
	(Create_Standard): Adjust the types of the component of the record
	Standard_Exception_Type and mark them as aliased.
	* exp_ch11.adb (Expand_N_Exception_Declaration): Use OK
	conversion to Standard_Address for Full_Name component, except
	in CodePeer_Mode (set it to 0).
	* exp_prag.adb (Expand_Pragma_Import_Or_Interface): Likewise.
	* raise.h (struct Exception_Data): Change the type of Full_Name,
	HTable_Ptr and Foreign_Data.

2021-05-07  Eric Botcazou  <ebotcazou@adacore.com>

	* atree.h (Slots_Ptr): Change pointed-to type to any_slot.
	* fe.h (Get_RT_Exception_Name): Change type of parameter.
	* namet.ads (Name_Entry): Mark non-boolean components as aliased,
	reorder the boolean components and add an explicit Spare component.
	* namet.adb (Name_Enter): Adjust aggregate accordingly.
	(Name_Find): Likewise.
	(Reinitialize): Likewise.
	* namet.h (struct Name_Entry): Adjust accordingly.
	(Names_Ptr): Use correct type.
	(Name_Chars_Ptr): Likewise.
	(Get_Name_String): Fix declaration and adjust to above changes.
	* types.ads (RT_Exception_Code): Add pragma Convention C.
	* types.h (Column_Number_Type): Fix original type.
	(slot): Rename union type to...
	(any_slot): ...this and adjust assertion accordingly.
	(RT_Exception_Code): New enumeration type.
	* uintp.ads (Uint_Entry): Mark components as aliased.
	* uintp.h (Uints_Ptr):  Use correct type.
	(Udigits_Ptr): Likewise.
	* gcc-interface/gigi.h (gigi): Adjust name and type of parameter.
	* gcc-interface/cuintp.c (UI_To_gnu): Adjust references to Uints_Ptr
	and Udigits_Ptr.
	* gcc-interface/trans.c (Slots_Ptr): Adjust pointed-to type.
	(gigi): Adjust type of parameter.
	(build_raise_check): Add cast in call to Get_RT_Exception_Name.

2021-05-07  Eric Botcazou  <ebotcazou@adacore.com>

	* init.c (__gnat_raise_program_error): Fix parameter type.
	(Raise_From_Signal_Handler): Likewise and mark as no-return.
	* raise-gcc.c (__gnat_others_value): Fix type.
	(__gnat_all_others_value): Likewise.
	(__gnat_unhandled_others_value): Likewise.
	* seh_init.c (Raise_From_Signal_Handler): Fix parameter type.
	* libgnat/a-except.ads (Raise_From_Signal_Handler): Use convention C
	and new symbol name, move declaration to...
	(Raise_From_Controlled_Operation): Minor tweak.
	* libgnat/a-except.adb (Raise_From_Signal_Handler): ...here.
	* libgnat/a-exexpr.adb (bool): New C compatible boolean type.
	(Is_Handled_By_Others): Use it as return type for the function.

2021-05-07  Eric Botcazou  <ebotcazou@adacore.com>

	* errout.ads (Set_Identifier_Casing): Add pragma Convention C.
	* eval_fat.ads (Rounding_Mode): Likewise.
	(Machine): Add WARNING comment line.
	* exp_code.ads (Clobber_Get_Next): Add pragma Convention C.
	* fe.h (Compiler_Abort): Fix return type.
	(Set_Identifier_Casing): Change type of parameters.
	(Clobber_Get_Next): Change return type.
	* gcc-interface/trans.c (gnat_to_gnu) <N_Code_Statement>: Add cast.

2021-05-07  Eric Botcazou  <ebotcazou@adacore.com>

	* atree.h (Parent): Remove duplicate declaration.
	(Get_1_Bit_Field): Also use INLINE specifier in the declaration,
	fix formatting and use gcc_unreachable for the default case.
	(Get_2_Bit_Field): Likewise.
	(Get_4_Bit_Field): Likewise.
	(Get_8_Bit_Field): Likewise.
	(Get_32_Bit_Field): Likewise.
	(Get_32_Bit_Field_With_Default): Likewise.

2021-05-07  Bob Duff  <duff@adacore.com>

	* atree.ads, atree.adb: Major rewrite to support variable-sized
	node types. Add pragmas Suppress and Assertion_Policy.  We now
	have an extra level of indirection: Node_Offsets is a table
	mapping Node_Ids to the offset of the start of each node in
	Slots. Slots is a table containing one or more contiguous slots
	for each node. Each slot is a 32-bit unchecked union that can
	contain any mixture of 1, 2, 4, 8, and 32-bit fields that fits.
	The old low-level getters and setters (e.g.  Flag123) are
	removed.
	* gen_il-fields.ads, gen_il-gen-gen_entities.adb,
	gen_il-gen-gen_nodes.adb, gen_il-gen.adb, gen_il-gen.ads,
	gen_il-main.adb, gen_il-types.ads, gen_il-utils.adb,
	gen_il-utils.ads, gen_il.adb, gen_il.ads: New gen_il program
	that generates various Ada and C++ files. In particular, the
	following files are generated by gen_il: einfo-entities.adb
	einfo-entities.ads, gnatvsn.ads, nmake.adb, nmake.ads,
	seinfo.ads, seinfo_tables.adb, seinfo_tables.ads,
	sinfo-nodes.adb, sinfo-nodes.ads, einfo.h, and sinfo.h.
	* sinfo-utils.adb, sinfo-utils.ads, einfo-utils.adb,
	einfo-utils.ads: New files containing code that needs to refer
	to Sinfo.Nodes and Einfo.Entities. This code is mostly moved
	here from Sinfo and Einfo to break cycles.
	* back_end.adb: Pass node_offsets_ptr and slots_ptr to gigi,
	instead of nodes_ptr and flags_ptr. The Nodes and Flags tables
	no longer exist. (Note that gigi never used the Flags table.)
	* sinfo-cn.ads (Change_Identifier_To_Defining_Identifier,
	Change_Character_Literal_To_Defining_Character_Literal,
	Change_Operator_Symbol_To_Defining_Operator_Symbol): Turn N into
	an IN formal.
	* sinfo-cn.adb: Update.  Add assertions, which can be removed at
	some point.  Rewrite to use higher-level facilities.  Make sure
	vanishing fields are zeroed out.  Add with/use for new packages.
	* sem_util.adb: Remove "Assert(False)" immediately followed by
	"raise Program_Error".  Use higher-level facilities such as
	Walk_Sinfo_Fields instead of depending on low-level Set_FieldN
	routines that no longer exist. Use Get_Comes_From_Source_Default
	instead of Default_Node.Comes_From_Source (Default_Node no
	longer exists).  Use Set_Basic_Convention instead of
	Basic_Set_Convention.  Add with/use for new packages.
	* sem_util.ads: The Convention field had getter Convention and
	setter Basic_Set_Convention. Make that more uniform: there is
	now a field called Basic_Convention, with Basic_Convention and
	Set_Basic_Convention as getter/setter, and write Convention and
	Set_Convention here.
	* nlists.adb: Rewrite to use abstractions, rather then depending
	on low-level implementation details of Atree. Necessary because
	those details have changed. Add with/use for new packages.
	* sem_ch12.adb: Use higher-level facilities such as
	Walk_Sinfo_Fields instead of depending on low-level Set_FieldN
	routines that no longer exist. Add with/use for new packages.
	* exp_cg.adb, sem_ch10.adb, sem_ch4.adb, sem_eval.adb,
	sem_prag.adb, sem_warn.adb: Change expanded names to refer to
	the new packages for things that moved. Add with/use for new
	packages.
	* sem_ch3.adb: Likewise. Reinitialize vanishing fields.
	* exp_disp.adb: Likewise. Remove failing assertion.
	* sinfo.ads, einfo.ads: Remove code that is now generated into
	Sinfo.Nodes and Einfo.Entities.
	* sinfo.adb, einfo.adb: Replace bodies with "pragma No_Body;".
	We should delete these at some point, but No_Body makes make
	files easier. Some code is moved to Sinfo.Nodes, Einfo.Entities,
	Sinfo.Utils, and Einfo.Utils. Some is no longer necessary.
	* treepr.adb: Rewrite to use new tables. We no longer need
	treeprs.ads.
	* treepr.ads: Add comment.
	* types.ads: Move types Component_Alignment_Kind and
	Float_Rep_Kind here.
	* atree.h: Major update to match atree.ads changes.  Add slot
	types, for use by getters/setters.
	* types.h: Move types Component_Alignment_Kind and
	Float_Rep_Kind here.
	* fe.h: Rewrite to deal with code that has changed or moved from
	Atree, Sinfo, Einfo.
	* nlists.h: Move some code to fe.h.
	* alloc.ads: Split Nodes_* constants into Node_Offsets and
	Slots, because Atree has two separate tables.  Increase values.
	Remove Nodes_Release_Threshold. Improve comment.
	* debug.adb, gnat1drv.adb: Remove obsolete gnatd.A and gnatd.N
	switches.  Add with/use for new packages.
	* opt.ads: Minor comment fix.
	* aspects.adb, checks.adb, comperr.adb, contracts.adb,
	cstand.adb, debug_a.adb, errout.adb, eval_fat.adb, exp_aggr.adb,
	exp_atag.adb, exp_attr.adb, exp_ch11.adb, exp_ch12.adb,
	exp_ch13.adb, exp_ch2.adb, exp_ch3.adb, exp_ch4.adb,
	exp_ch5.adb, exp_ch6.adb, exp_ch7.adb, exp_ch8.adb, exp_ch9.adb,
	exp_code.adb, exp_dbug.adb, exp_dist.adb, exp_fixd.adb,
	exp_imgv.adb, exp_intr.adb, exp_pakd.adb, exp_prag.adb,
	exp_put_image.adb, exp_sel.adb, exp_smem.adb, exp_spark.adb,
	exp_strm.adb, exp_tss.adb, exp_unst.adb, exp_util.adb,
	exp_util.ads, expander.adb, freeze.adb, frontend.adb,
	get_targ.ads, ghost.adb, gnat_cuda.adb, impunit.adb, inline.adb,
	itypes.adb, itypes.ads, layout.adb, lib.adb, lib-load.adb,
	lib-writ.adb, lib-xref.adb, lib-xref.ads,
	lib-xref-spark_specific.adb, live.adb, par.adb, par_sco.adb,
	pprint.adb, repinfo.adb, restrict.adb, rtsfind.adb, scil_ll.adb,
	scn.adb, sem.adb, sem.ads, sem_aggr.adb, sem_attr.adb,
	sem_aux.adb, sem_case.adb, sem_cat.adb, sem_ch11.adb,
	sem_ch13.adb, sem_ch2.adb, sem_ch5.adb, sem_ch6.adb,
	sem_ch7.adb, sem_ch8.adb, sem_ch9.adb, sem_dim.adb,
	sem_disp.adb, sem_dist.adb, sem_elab.adb, sem_elim.adb,
	sem_intr.adb, sem_mech.adb, sem_res.adb, sem_scil.adb,
	sem_smem.adb, sem_type.adb, set_targ.ads, sinput.adb,
	sinput-l.adb, sprint.adb, style.adb, styleg.adb, tbuild.adb,
	tbuild.ads, uname.adb: Add with/use for new packages.
	* libgnat/a-stoubu.adb, libgnat/a-stouut.adb: Simplify to ease
	bootstrap.
	* libgnat/a-stobfi.adb, libgnat/a-stoufi.adb (Create_File,
	Create_New_File): Create file in binary format, to avoid
	introducing unwanted text conversions on Windows. Simplify to
	ease bootstrap.
	* libgnat/a-stteou__bootstrap.ads: New.
	* ceinfo.adb, csinfo.adb, nmake.adt, treeprs.adt, xeinfo.adb,
	xnmake.adb, xsinfo.adb, xtreeprs.adb: Delete.
	* Make-generated.in: Build and run the gen_il program to
	generate files. The files are generated in the ada/gen_il
	subdirectory, and then moved up to ada.  We rely on gnatmake (as
	opposed to make) to build the gen_il program efficiently (i.e.
	don't do anything if the sources didn't change).
	* gcc-interface/Makefile.in (ADAFLAGS): Add -gnatU.
	(GNATMAKE_OBJS): Add new object files.
	(GENERATED_FILES_FOR_TOOLS): New variable.
	(../stamp-tools): Create a link for all
	GENERATED_FILES_FOR_TOOLS.
	* gcc-interface/Make-lang.in (GNAT_ADA_OBJS): Add new object
	files.  Remove ada/treeprs.o.
	(GNATBIND_OBJS): Add new object files.
	(ada.mostlyclean): Remove ada/sdefault.adb and add
	ada/stamp-gen_il.
	(ada.maintainer-clean): Remove ada/treeprs.ads.
	(update-sources): Remove obsolete target.
	(ada_generated_files): Rename to...
	(ADA_GENERATED_FILES): ... this.  Add new source files.  Add
	comment.
	* gcc-interface/trans.c: Remove obsolete Nodes_Ptr and
	Flags_ptr.  Add Node_Offsets_Ptr and Slots_Ptr, which point to
	the corresponding tables in Atree.
	* gcc-interface/gigi.h (gigi): New parameters for initializing
	Node_Offsets_Ptr and Slots_Ptr.
	* gcc-interface/decl.c: Numeric_Kind,
	Discrete_Or_Fixed_Point_Kind, and Record_Kind were
	nonhierarchical, and were therefore removed for simplicity.
	Replace uses with calls to Is_In_... functions.

2021-05-07  Ed Schonberg  <schonberg@adacore.com>

	* exp_ch4.adb (Unconstrained_UU_In_Component_Declaration): A
	component declaration whose subtype indication is an entity name
	without an explicit constraint is an Unchecked_Union type only
	if the entity has an unconstrained nominal subtype (record type
	or private type) whose parent type is an Unchecked_Union.

2021-05-07  Piotr Trojanek  <trojanek@adacore.com>

	* sem_res.adb (Flag_Object): Ignore prefixes of attribute
	Address.

2021-05-07  Yannick Moy  <moy@adacore.com>

	* opt.ads: Update comment for Warn_On_Suspicious_Modulus_Value.
	* sem_res.adb (Resolve_Unary_Op): Generate warning.
	* usage.adb: Refine doc for -gnatw.m/M switch.
	* doc/gnat_ugn/building_executable_programs_with_gnat.rst:
	Update doc on -gnatw.m switch.
	* gnat_ugn.texi: Regenerate.

2021-05-07  Piotr Trojanek  <trojanek@adacore.com>

	* sem_res.adb (Flag_Object): Replace chained IF with a CASE;
	remove repeated calls to Entity; do not traverse into
	N_Identifier and N_Expanded_Name, because only need to examine
	their Entity field anyway.

2021-05-07  Piotr Trojanek  <trojanek@adacore.com>

	* sem_ch4.adb (Analyze_Call): Remove call to End_Interp_List.
	(Process_Overloaded_Indexed_Component): Remove call to
	End_Interp_List.
	* sem_util.adb (Insert_Explicit_Dereference): Remove call to
	End_Interp_List.
	* sem_type.ads (End_Interp_List): Remove.
	* sem_type.adb (Add_Entry): The guard against duplicate entries
	is now checked before other conditions, so that EXIT statements
	do not bypass this guard.
	(End_Interp_List): Remove.

2021-05-07  Ed Schonberg  <schonberg@adacore.com>

	* exp_util.adb (Remove_Init_Call): If a simple initialization
	call is present, and the next statement is an initialization
	block (that contains a call to a Deep_ Initialize routine),
	remove the block as well, and insert the first initialization
	call in it, in case it is needed for later relocation.

2021-05-07  Gary Dismukes  <dismukes@adacore.com>

	* errout.ads (Size_Too_Small_Message): Remove low-value ???
	comment.
	* exp_util.ads: Remove ??? in part of overall package comments
	and restructure comment to clarify.
	(Duplicate_Subexpr): Remove ??? comment that seems unnecessary.
	* sem_ch3.ads (Analyze_Declarations): Remove two parenthesized
	??? comments and add more description of the procedure's
	actions.
	(Get_Discriminant_Value): Remove ??? comment requesting more
	documentation, expanding description of the function's actions.
	* sem_disp.ads (Check_Operation_From_Incomplete_Type): Add more
	semantic description of the procedure and remove ??? comment
	requesting such.
	(Propagate_Tag): Refine comment to indicate meaning of formal
	parameters and generally improve the spec comment (and remove
	??? comment asking about the parameters).

2021-05-07  Arnaud Charlet  <charlet@adacore.com>

	* sem_eval.adb (Fold_Shift): Fix computation of Shift_Left
	resulting in negative signed values.

2021-05-07  Eric Botcazou  <ebotcazou@adacore.com>

	* sem_util.ads (Defining_Entity): Remove Empty_On_Errors parameter.
	(Defining_Entity_Or_Empty): New function.
	* sem_util.adb (Defining_Entity): Move bulk of implementation to...
	(Defining_Entity_Or_Empty): ...here.  Do not raise Program_Error.
	(Innermost_Master_Scope_Depth): Call Defining_Entity_Or_Empty.

2021-05-07  Justin Squirek  <squirek@adacore.com>

	* aspects.ads: Add entries to register
	Aspect_No_Controlled_Parts.
	* freeze.adb (Check_No_Controlled_Parts_Violations): Added to
	check requirements of aspect No_Controlled_Parts after a type
	has been frozen.
	(Freeze_Entity): Add call to
	Check_No_Controlled_Parts_Violations.
	(Find_Aspect_No_Controlled_Parts): Created to obtain the aspect
	specification for No_Controlled_Parts on a given type when
	present.
	(Find_Aspect_No_Controlled_Parts_Value): Protect against invalid
	value.
	(Has_Aspect_No_Controlled_Parts): Created as a prediate function
	to check if No_Controlled_Parts has been specified on a type for
	Get_Anacestor_Types_With_Specification.
	(Get_Aspect_No_Controlled_Parts_Value): Created to obtain the
	value of the aspect No_Controlled_Parts when specified on a
	given type.
	(Get_Generic_Formal_Types_In_Hierarchy): Created to collect
	formal types in a given type's hierarchy.
	(Get_Types_With_Aspect_In_Hierarchy): Created to collect types
	in a given type's hierarchy with No_Controlled_Parts specified.
	* sem_ch13.adb (Analyze_One_Aspect): Add processing for
	No_Controlled_Parts, and fix error in check for allowed pragmas
	for formal types.
	(Check_Expr_Is_OK_Static_Expression): Created to enforce
	checking of static expressions in the same vein as
	Analyze_Pragma.Check_Expr_OK_Static_Expression.
	* sem_util.adb (Collect_Types_In_Hierarchy): Created to collect
	types in a given type's hierarchy that match a given predicate
	function.
	* sem_util.ads: Fix typo.
	* snames.ads-tmpl: Add entry for No_Controlled_Parts.

2021-05-07  Eric Botcazou  <ebotcazou@adacore.com>

	* libgnat/s-fatgen.adb (Scaling): Raise Constraint_Error in the
	overflow case when T'Machine_Overflows is True.

2021-05-07  Bob Duff  <duff@adacore.com>

	* libgnat/a-conhel.adb (TC_Check): Move the Assert into the
	'if'.

2021-05-07  Frederic Konrad  <konrad@adacore.com>

	* sigtramp-vxworks-target.inc: Use a local label for the TOC.

2021-05-07  Claire Dross  <dross@adacore.com>

	* exp_ch4.adb (Has_Inferable_Discriminants): Moved to Sem_Util.
	* sem_util.ads, sem_util.adb (Has_Inferable_Discriminants):
	Moved from Exp_Ch4.

2021-05-07  Ed Schonberg  <schonberg@adacore.com>

	* exp_util.adb (Build_Class_Wide_Expression, Replace_Entity):
	Add guard to verify that the enclosing pragma is a precondition.

2021-05-06  Javier Miranda  <miranda@adacore.com>

	* exp_disp.adb (Build_Class_Wide_Check): Extending the
	functionality of this routine to climb to the ancestors
	searching for the enclosing overridden dispatching primitive
	that has a class-wide precondition to generate the check.

2021-05-06  Piotr Trojanek  <trojanek@adacore.com>

	* sem_ch3.adb (Constraint_Index): Remove redundant problematic
	analysis.

2021-05-06  Arnaud Charlet  <charlet@adacore.com>

	* exp_unst.adb (Note_Uplevel_Bound): Exclude
	E_Enumeration_Literal.

2021-05-06  Arnaud Charlet  <charlet@adacore.com>

	* exp_ch4.adb (Expand_N_If_Expression):
	Apply_Arithmetic_Overflow_Check will not deal with
	Then/Else_Actions so skip minimizing overflow checks if any
	actions are present.

2021-05-06  Boris Yakobowski  <yakobowski@adacore.com>

	* gnat1drv.adb (Adjust_Global_Switches): Simplify logic.

2021-05-06  Arnaud Charlet  <charlet@adacore.com>

	* libgnat/i-c.ads (bool): New type.
	* libgnat/i-cexten.ads, libgnat/i-cexten__128.ads (bool): Now
	a subtype of Interfaces.C.bool.
	* libgnarl/s-interr__vxworks.adb (Interrupt_Manager): Qualify
	False.
	* libgnarl/s-interr.adb, libgnarl/s-interr__hwint.adb,
	libgnarl/s-tasini.adb, libgnarl/s-tasren.adb,
	libgnarl/s-tassta.adb, libgnarl/s-tpobmu.adb,
	libgnarl/s-tpobop.adb, libgnarl/s-tpopmo.adb: Replace
	Assert (False) by Assert (Standard.False).

2021-05-06  Ghjuvan Lacambre  <lacambre@adacore.com>

	* make.adb (Compute_Executable): Document parameter.

2021-05-06  Eric Botcazou  <ebotcazou@adacore.com>

	* libgnat/s-fatgen.adb (Scaling): Use single handling of
	underflow.  Add pragma Annotate.

2021-05-06  Ghjuvan Lacambre  <lacambre@adacore.com>

	* sem_eval.adb (Is_OK_Static_Subtype): Call Is_Static_Subtype,
	remove redundant checks.

2021-05-06  Piotr Trojanek  <trojanek@adacore.com>

	* sem_res.adb (First_Last_Ref): Simplify "if [condition] then
	return True" in "return [condition]".
	(Resolve_Range): Remove calls appearing in IF condition from the
	THEN statements.

2021-05-06  Piotr Trojanek  <trojanek@adacore.com>

	* sem_case.adb (Missing_Choice): Fix typo in comment.
	(Lit_Of): Simplify with Make_Character_Literal.
	(Check_Choices): Remove extra spaces in parameter
	specifications.
	* sem_case.ads: Same reformatting.

2021-05-06  Ed Schonberg  <schonberg@adacore.com>

	* exp_aggr.adb (Expand_Array_Aggregate): If the expression in an
	Others_Clause has not been analyzed because previous analysis of
	the enclosing aggregate showed the clause to be ineffective i.e.
	cover a null range, analyze it now to detect a possible type
	illegality.

2021-05-06  Eric Botcazou  <ebotcazou@adacore.com>

	* libgnat/s-fatgen.adb (Scaling): Fix off-by-one bug for underflow.

2021-05-06  Arnaud Charlet  <charlet@adacore.com>

	* sem_ch6.adb (Is_Inline_Pragma): Protect against N not being a
	list member in both branches.

2021-05-06  Piotr Trojanek  <trojanek@adacore.com>

	* libgnat/a-cofove.adb (Insert_Space): Remove hardcoded pragma
	Warnings.

2021-05-06  Piotr Trojanek  <trojanek@adacore.com>

	* sem_ch4.adb (Analyze_Selected_Component): Remove explicit call
	to Set_Raises_Constraint_Error on statically missing component.
	* sem_eval.adb (Eval_Arithmetic_Op): Likewise for static
	divisions by integer and real zeros.
	* sem_util.adb (Apply_Compile_Time_Constraint_Error): Call
	Set_Raises_Constraint_Error before exiting early in GNATprove
	mode.

2021-05-06  Justin Squirek  <squirek@adacore.com>

	* checks.adb (Make_Discriminant_Constraint_Check): Add check for
	null when the type being converted is an access type.

2021-05-06  Arnaud Charlet  <charlet@adacore.com>

	* exp_pakd.adb (Expand_Packed_Eq): Fix handling of PATs.

2021-05-06  Piotr Trojanek  <trojanek@adacore.com>

	* osint.adb (Read_Library_Info_From_Full): Cleanup unused
	initial value.

2021-05-06  Eric Botcazou  <ebotcazou@adacore.com>

	* doc/gnat_rm/implementation_defined_characteristics.rst (3.5.7):
	Mention the IEEE standard explicitly.  Use current format names.
	Document assumed rounding mode and new features of I/O support.
	* gnat_rm.texi: Regenerate.

2021-05-06  Eric Botcazou  <ebotcazou@adacore.com>

	* init.c (__gnat_init_float): Use full version on Linux too.

2021-05-06  Eric Botcazou  <ebotcazou@adacore.com>

	* libgnat/s-fatgen.adb (Valid): Do a bit comparison with 0.0
	when denormalized numbers are not supported.

2021-05-06  Piotr Trojanek  <trojanek@adacore.com>

	* sem_attr.adb (Check_Enum_Image): Reword comment; add
	Check_Enumeration_Maps parameter.  Now this routine combines
	both referencing enumeration literals and checking restriction
	No_Enumeration_Maps, if required.
	(Analyze_Attribute): Remove duplicated code and instead call
	Check_Enum_Image.

2021-05-06  Piotr Trojanek  <trojanek@adacore.com>

	* sem_attr.adb (Analyze_Image_Attribute): Remove redundant
	condition; add a missing header box.

2021-05-06  Gary Dismukes  <dismukes@adacore.com>

	* doc/gnat_ugn/building_executable_programs_with_gnat.rst: Add
	mention of underscore and fix grammar error in doc for -gnatd.
	* gnat_ugn.texi: Regenerate.

2021-05-06  Eric Botcazou  <ebotcazou@adacore.com>

	* Makefile.rtl (GNATRTL_NONTASKING_OBJS): Add s-exponr, s-exnflt
	and s-exnlfl.
	* exp_ch4.adb (Expand_N_Op_Expon): Use RE_Exn_Float for Short_Float.
	* rtsfind.ads (RTU_Id): Add System_Exn_Flt and System_Exn_LFlt.
	(RE_Id): Adjust entries for RE_Exn_Float and RE_Exn_Long_Float.
	(RE_Unit_Table): Likewise.
	* libgnat/s-exnflt.ads: New file.
	* libgnat/s-exnlfl.ads: Likewise.
	* libgnat/s-exnllf.ads: Change to mere instantiation.
	* libgnat/s-exnllf.adb: Move implementation to...
	* libgnat/s-exponr.ads: New generic unit.
	* libgnat/s-exponr.adb: ...here and also make it generic.
	(Expon): Do the computation in double precision internally.

2021-05-06  Piotr Trojanek  <trojanek@adacore.com>

	* lib-writ.adb, osint.adb, osint.ads: Cleanup.

2021-05-06  Piotr Trojanek  <trojanek@adacore.com>

	* exp_ch3.adb (Expand_Freeze_Array_Type): Remove excessive
	condition.
	(Expand_N_Object_Declaration): Likewise.
	(Build_Equivalent_Aggregate): Likewise.
	(Initialization_Warning): Likewise; change another excessive
	condition into assertion.
	* freeze.adb (Freeze_Entity): Remove excessive condition.

2021-05-06  Ed Schonberg  <schonberg@adacore.com>

	* sem_res.adb (Resolve_If_Expression): If the context of the
	expression is an indexed_component, resolve the expression and
	its dependent_expressions with the base type of the index, to
	ensure that an index check is generated when resolving the
	enclosing indexxed_component, and avoid an improper use of
	discriminants out of scope, when the index type is
	discriminant-dependent.

2021-05-06  Arnaud Charlet  <charlet@adacore.com>

	* einfo.ads, exp_prag.adb, exp_util.adb: Fix typos.

2021-05-05  Piotr Trojanek  <trojanek@adacore.com>

	* exp_attr.adb (Expand_N_Attribute_Reference): Fix expansion of
	attributes Input and Output for unchecked unions.
	* sem_case.ads: Fix typo "disriminant" and refill comment.

2021-05-05  Piotr Trojanek  <trojanek@adacore.com>

	* exp_attr.adb, exp_ch9.adb, sem_ch3.adb: Reuse
	Has_Defaulted_Discriminants.
	* sem_ch4.adb (Analyze_Allocator): Reuse
	Has_Defaulted_Discriminants (after reordering conjuncts); remove
	redundant IF statement, whose condition is implied by
	Has_Defaulted_Discriminants.
	* sem_util.adb (Has_Defaulted_Discriminants): Has_Discriminants
	implies that the First_Discriminant is present.
	(Is_Fully_Initialized_Type): Reuse Has_Defaulted_Discriminants.

2021-05-05  Justin Squirek  <squirek@adacore.com>

	* exp_ch6.adb (Expand_Call_Helper): Add condition to check for
	expanded actuals and remove dead code.

2021-05-05  Piotr Trojanek  <trojanek@adacore.com>

	* exp_ch4.adb (Has_Unconstrained_UU_Component): Rewrite to
	follow the Ada RM grammar.

2021-05-05  Piotr Trojanek  <trojanek@adacore.com>

	* exp_ch4.adb (User_Defined_Primitive_Equality_Op): Refine type
	of a local variable.
	* exp_dbug.adb (Scope_Contains): Refine all types from Node_Id
	to Entity_Id; rename parameters to match those of the
	Scope_Within routine (which is similar but not the same); also,
	simplify an OR ELSE into a membership test.

2021-05-05  Piotr Trojanek  <trojanek@adacore.com>

	* exp_ch4.adb (Component_Is_Unconstrained_UU): Detect both
	qualified and unqualified names of unchecked union components.

2021-05-05  Piotr Trojanek  <trojanek@adacore.com>

	* exp_ch4.adb (Variant_Is_Unconstrained_UU): Remove redundant
	check for empty list.
	* exp_disp.adb (Find_Entry_Index): Simplify by removing
	redundant check and counting from zero; fix type of a local
	variable.
	* sem_ch12.adb (Save_Global_Descendant): Remove an unnecessary
	special-case for empty lists.

2021-05-05  Piotr Trojanek  <trojanek@adacore.com>

	* exp_ch4.adb (Apply_Accessibility_Check): Skip a statically
	true condition in expanded raise statement.

2021-05-05  Bob Duff  <duff@adacore.com>

	* libgnat/s-os_lib.adb (Missed_Drive_Letter): Simplify the code.

2021-05-05  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch5.adb (Analyze_Assignment): Do not emit the warning that
	a previous value of the target object is useless if the
	right-hand side of the assignment includes target names.

2021-05-05  Eric Botcazou  <ebotcazou@adacore.com>

	* exp_imgv.adb: Add with/use clauses for Targparm.
	(Build_Enumeration_Image_Tables): Set type of Threshold to Nat and
	initialize it to Nat'Last if the type is local and the target does
	not support descriptors.  Adjust Threshold_For_Size similarly.
	(Expand_Value_Attribute): Minor tweaks.

2021-05-05  Ghjuvan Lacambre  <lacambre@adacore.com>

	* exp_ch7.adb (Expand_N_Package_Body): Add CUDA init call.
	* sem_ch7.adb (Analyze_Package_Body_Helper): Remove CUDA init
	call.

2021-05-05  Ghjuvan Lacambre  <lacambre@adacore.com>

	* par-ch5.adb (P_Condition): Check if expression is declare
	expression.

2021-05-05  Piotr Trojanek  <trojanek@adacore.com>

	* make.adb (Make): Use GNAT.Ctrl_C.Install_Handler instead of a
	custom imported procedure.

2021-05-05  Eric Botcazou  <ebotcazou@adacore.com>

	* exp_imgv.adb (Is_User_Defined_Enumeration_Type): Delete.
	(Expand_Image_Attribute): Move inline expansion into normal flow of
	control, move down declarations and remove superfluous processing.

2021-05-05  Piotr Trojanek  <trojanek@adacore.com>

	* libgnat/g-alleve.adb (Bit_Operation): Now a not-null type.
	* libgnat/g-sechas.adb (Fill_Buffer_Access): Likewise.
	* libgnat/s-dwalin.adb (Callback): Likewise.

2021-05-05  Ghjuvan Lacambre  <lacambre@adacore.com>

	* exp_util.adb (Is_Possibly_Unaligned_Object): Remove commented
	code.

2021-05-05  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch3.adb (Find_Type_Of_Object):  When In_Spec_Expression is
	set and the object declaration generates a subtype indication,
	build the corresponding subtype declaration and place it in tree
	without the use of Insert_Actions, which is disabled in this
	context.

2021-05-05  Eric Botcazou  <ebotcazou@adacore.com>

	* debug.adb (d_x): Document extended usage.
	* exp_imgv.adb (Expand_Standard_Boolean_Image): New procedure.
	(Expand_Image_Attribute): Call it to expand in line the attribute
	for standard boolean by default.

2021-05-05  Eric Botcazou  <ebotcazou@adacore.com>

	* debug.adb (d_x): Document new usage.
	* exp_imgv.adb (Expand_User_Defined_Enumeration_Image): Add Typ
	parameter and use it throughout the processing.
	(Expand_Image_Attribute): Retrieve the underlying type of the
	prefix and use the inline expansion for user-defined enumeration
	types with a literal string by default.

2021-05-05  Eric Botcazou  <ebotcazou@adacore.com>

	* libgnat/s-dorepr.adb (Split): Declare a per-size temporary.
	Add pragma Annotate.

2021-05-05  Piotr Trojanek  <trojanek@adacore.com>

	* exp_ch4.adb, sem_ch13.adb, sem_eval.adb, sem_res.adb: Remove
	redundant calls to UI_From_Int.

2021-05-05  Eric Botcazou  <ebotcazou@adacore.com>

	* exp_imgv.ads (Build_Enumeration_Image_Tables): Adjust comment.
	* exp_imgv.adb (Build_Enumeration_Image_Tables): Add the
	declaration nodes of the 4 tables to the declaration list of the
	function body.

2021-05-05  Piotr Trojanek  <trojanek@adacore.com>

	* Makefile.rtl (GNATRTL_NONTASKING_OBJS): Add s-imagen, s-imen16,
	s-imen32, s-imenu8, s-pehage, s-valuen, s-vaen16, s-vaen32 and
	s-vaenu8.  Remove s-imenne, s-imgenu and s-valenu.
	* debug.adb (d_h): Document new usage.
	* einfo.ads (Lit_Hash): New attribute for enumeration types.
	(Set_Lit_Hash): Declare.
	* einfo.adb (Lit_Hash): New function.
	(Set_Lit_Hash): New procedure.
	(Write_Field21_Name): Print Lit_Hash for Enumeration_Kind.
	* exp_imgv.ads (Build_Enumeration_Image_Tables): Fix description
	and document the hash function and its tables.
	* exp_imgv.adb: Add with/use clauses for Debug.  Add with clause
	for System.Perfect_Hash_Generators.
	(Append_Table_To): New helper routine.
	(Build_Enumeration_Image_Tables): Call it to build the tables.
	In the main unit, register the literals with the hash generator.
	If they are sufficiently many and -gnatd_h is not passed, generate
	a perfect hash function and its tables; otherwise, generate a dummy
	hash function.  For the other units, generate only the declaration.
	In all cases, set Lit_Hash to the entity of the function, if any.
	(Expand_Value_Attribute): Pass the 'Unrestricted_Access of Lit_Hash,
	if any, as third argument to the Value_Enumeration_NN function.
	* gnat1drv.adb (Adjust_Global_Switches): force simpler implementation
	of 'Value in CodePeer_Mode.
	* lib.ads (Synchronize_Serial_Number): Add SN parameter.
	* lib.adb (Synchronize_Serial_Number): Assert that it is larger than
	the serial number of the current unit and set the latter to it only
	in this case.
	* rtsfind.ads (RTU_Id): Add System_Img_Enum_8, System_Img_Enum_16,
	System_Img_Enum_32, System_Val_Enum_8, System_Val_Enum_16 and
	System_Val_Enum_32.  Remove System_Img_Enum, System_Img_Enum_New
	and System_Val_Enum.
	* sem_attr.adb (Analyze_Access_Attribute): Do not flag a compiler
	generated Unrestricted_Access attribute as illegal in a declare
	expression.
	(RE_Unit_Table): Adjust to above changes.
	* libgnat/g-heasor.ads: Add pragma Compiler_Unit_Warning.
	* libgnat/g-table.ads: Likewise.
	* libgnat/g-pehage.ads: Add with clause and local renaming for
	System.Perfect_Hash_Generators.
	(Optimization): Turn into derived type.
	(Verbose): Turn into renaming.
	(Too_Many_Tries): Likewise.
	(Table_Name): Move to System.Perfect_Hash_Generators.
	(Define): Likewise.
	(Value): Likewise.
	* libgnat/g-pehage.adb: Remove with clause for Ada.Directories,
	GNAT.Heap_Sort_G and GNAT.Table.  Move bulk of implementation
	to System.Perfect_Hash_Generators, only keep the output part.
	* libgnat/s-imagen.ads: New generic unit.
	* libgnat/s-imagen.adb: New body.
	* libgnat/s-imen16.ads: New unit.
	* libgnat/s-imen32.ads: Likewise.
	* libgnat/s-imenu8.ads: Likewise.
	* libgnat/s-imenne.ads: Adjust description.
	* libgnat/s-imgenu.ads: Delete.
	* libgnat/s-imgenu.adb: Likewise.
	* libgnat/s-pehage.ads: New unit from GNAT.Perfect_Hash_Generators.
	* libgnat/s-pehage.adb: New body from GNAT.Perfect_Hash_Generators.
	* libgnat/s-valuen.ads: New generic unit.
	* libgnat/s-valuen.adb: New body.
	* libgnat/s-vaen16.ads: New unit.
	* libgnat/s-vaen32.ads: Likewise.
	* libgnat/s-vaenu8.ads: Likewise.
	* libgnat/s-valenu.ads: Delete.
	* libgnat/s-valenu.adb: Likewise.
	* gcc-interface/Make-lang.in (GNAT_ADA_OBJS): Add s-pehage.o.
	(GNATBIND_OBJS): Remove s-imgenu.o.

2021-05-05  Piotr Trojanek  <trojanek@adacore.com>

	* sem_util.ads (Apply_Compile_Time_Constraint_Error): Remove
	parameter Rep from the function spec and "and if the flag Rep is
	set" from the comment.
	* sem_util.adb (Apply_Compile_Time_Constraint_Error): Remove
	parameter Rep.

2021-05-05  Ed Schonberg  <schonberg@adacore.com>

	* sem_aggr.adb (Resolve_Indexed_Aggregate): For indexed
	aggregates with component associations verify that if there is
	more than one component association then all the choices are
	static, that the set of choices define a continuous sequence of
	values, and that if loop specfications appear, they do not
	include iterator filters or key expressions.

2021-05-05  Eric Botcazou  <ebotcazou@adacore.com>

	* Makefile.rtl (GNATRTL_NONTASKING_OBJS): Add s-dourea, s-imager,
	s-imgflt, s-imglfl and s-imgllf.
	(LIBGNAT_TARGET_PAIRS) [PowerPC/VxWorks]: Use s-dorepr__fma.adb.
	(LIBGNAT_TARGET_PAIRS) [PowerPC/VxWorksAE]: Likewise.
	(LIBGNAT_TARGET_PAIRS) [Aarch64/VxWorks]: Likewise.
	(LIBGNAT_TARGET_PAIRS) [Aarch64/QNX]: Likewise.
	(LIBGNAT_TARGET_PAIRS) [Aarch64/FreeBSD]: Likewise.
	(LIBGNAT_TARGET_PAIRS) [PowerPC/Linux]: Likewise.
	(LIBGNAT_TARGET_PAIRS) [Aarch64/Linux]: Likewise.
	(LIBGNAT_TARGET_PAIRS) [IA-64/Linux]: Likewise.
	(LIBGNAT_TARGET_PAIRS) [IA-64/HP-UX]: Likewise.
	(LIBGNAT_TARGET_PAIRS) [RISC-V/Linux]: Likewise.
	(LIBGNAT_TARGET_PAIRS) [PowerPC/Darwin]: Likewise.
	* exp_attr.adb (Expand_N_Attribute_Reference) [Attribute_Fore]: Use
	Fixed suffix and Long_Float type.
	* exp_imgv.adb (Expand_Image_Attribute): For floating-point types,
	use the routine of the corresponding root type.  For ordinary fixed
	point types, use Fixed suffix and Long_Float type.
	(Expand_Value_Attribute): Revert latest change for Long_Long_Float.
	* gcc-interface/Make-lang.in (GNAT_ADA_OBJS): Remove libgnat units
	g-hesora.o and s-imgenu.o, add g-heasor.o, g-table.o and s-pehage.o.
	(GNATBIND_OBJS): Remove libgnat unit s-imgenu.o.
	* rtsfind.ads (RTU_Id): Add System_Img_Flt, System_Img_LFlt and
	System_Img_LLF.  Remove System_Img_Real.
	(RE_Id): Rename RE_Fore_Real to RE_Fore_Fixed.  Add RE_Image_Float,
	RE_Image_Long_Float and RE_Image_Long_Long_Float.  Rename
	RE_Image_Ordinary_Fixed_Point to RE_Image_Fixed.
	(RE_Unit_Table): Adjust to above changes.
	* libgnat/a-nbnbre.adb (Fixed_Conversions): Use Long_Float instead
	of Long_Long_Float.
	* libgnat/a-textio.ads (Field): Remove obsolete comment.
	* libgnat/a-ticoau.ads (Aux): Adjust ancestor package.
	* libgnat/a-ticoau.adb: Remove with/use clause for System.Img_Real.
	(Puts): Call Aux.Set_Image instead of Set_Image_Real.
	* libgnat/a-ticoio.adb: Add with/use clauses for System.Img_Flt,
	System.Img_LFlt and System.Img_LLF.
	(Scalar_Float): Add third actual parameter.
	(Scalar_Long_Float): Likewise.
	(Scalar_Long_Long_Float): Likewise.
	* libgnat/a-tifiio.adb: Add with/use clauses for System.Img_LFlt
	and System.Val_LFlt.  Remove the one for System.Val_LLF.  Replace
	Long_Long_Float with Long_Float throughout.
	* libgnat/a-tifiio__128.adb: Likewise.
	* libgnat/a-tiflau.ads: Add Set_Image formal parameter.
	* libgnat/a-tiflau.adb: Add with/use clause for System.Img_Util,
	remove the one for System.Img_Real.
	(Put): Call Set_Image instead of Set_Image_Real.
	(Puts): Likewise.
	* libgnat/a-tiflio.adb: Add with/use clause for System.Img_Flt,
	System.Img_LFlt and System.Img_LLF.
	(Aux_Float): Add third actual parameter.
	(Aux_Long_Float): Likewise.
	(Aux_Long_Long_Float): Likewise.
	* libgnat/a-witeio.ads (Field): Remove obsolete comment.
	* libgnat/a-wtcoau.ads (Aux): Adjust ancestor package.
	* libgnat/a-wtcoau.adb: Remove with/use clause for System.Img_Real.
	(Puts): Call Aux.Set_Image instead of Set_Image_Real.
	* libgnat/a-wtcoio.adb: Add with/use clauses for System.Img_Flt,
	System.Img_LFlt and System.Img_LLF.
	(Scalar_Float): Add third actual parameter.
	(Scalar_Long_Float): Likewise.
	(Scalar_Long_Long_Float): Likewise.
	* libgnat/a-wtfiio.adb: Add with/use clauses for System.Img_LFlt
	and System.Val_LFlt.  Remove the one for System.Val_LLF.  Replace
	Long_Long_Float with Long_Float throughout.
	* libgnat/a-wtfiio__128.adb: Likewise.
	* libgnat/a-wtflau.ads: Add Set_Image formal parameter.
	* libgnat/a-wtflau.adb: Add with/use clause for System.Img_Util,
	remove the one for System.Img_Real.
	(Put): Call Set_Image instead of Set_Image_Real.
	(Puts): Likewise.
	* libgnat/a-wtflio.adb: Add with/use clause for System.Img_Flt,
	System.Img_LFlt and System.Img_LLF.
	(Aux_Float): Add third actual parameter.
	(Aux_Long_Float): Likewise.
	(Aux_Long_Long_Float): Likewise.
	* libgnat/a-ztexio.ads (Field): Remove obsolete comment.
	* libgnat/a-ztcoau.ads (Aux): Adjust ancestor package.
	* libgnat/a-ztcoau.adb: Remove with/use clause for System.Img_Real.
	(Puts): Call Aux.Set_Image instead of Set_Image_Real.
	* libgnat/a-ztcoio.adb: Add with/use clauses for System.Img_Flt,
	System.Img_LFlt and System.Img_LLF.
	(Scalar_Float): Add third actual parameter.
	(Scalar_Long_Float): Likewise.
	(Scalar_Long_Long_Float): Likewise.
	* libgnat/a-ztfiio.adb: Add with/use clauses for System.Img_LFlt
	and System.Val_LFlt.  Remove the one for System.Val_LLF.  Replace
	Long_Long_Float with Long_Float throughout.
	* libgnat/a-ztfiio__128.adb: Likewise.
	* libgnat/a-ztflau.ads: Add Set_Image formal parameter.
	* libgnat/a-ztflau.adb: Add with/use clause for System.Img_Util,
	remove the one for System.Img_Real.
	(Put): Call Set_Image instead of Set_Image_Real.
	(Puts): Likewise.
	* libgnat/a-ztflio.adb: Add with/use clause for System.Img_Flt,
	System.Img_LFlt and System.Img_LLF.
	(Aux_Float): Add third actual parameter.
	(Aux_Long_Float): Likewise.
	(Aux_Long_Long_Float): Likewise.
	* libgnat/s-dorepr.adb: New file.
	* libgnat/s-dorepr__fma.adb: Likewise.
	* libgnat/s-dourea.ads: Likewise.
	* libgnat/s-dourea.adb: Likewise.
	* libgnat/s-forrea.ads (Fore_Real): Rename into...
	(Fore_Fixed): ...this and take Long_Float parameters.
	* libgnat/s-forrea.adb (Fore_Real): Likewise.
	(Fore_Fixed): Likewise.
	* libgnat/s-imgrea.ads: Move to...
	(Set_Image_Real): Turn into mere renaming.
	* libgnat/s-imager.ads: ...here.
	(Image_Ordinary_Fixed_Point): Turn into...
	(Image_Fixed_Point): ...this.
	* libgnat/s-imgrea.adb: Add pragma No_Body.  Move to...
	* libgnat/s-imager.adb: ...here.
	(Image_Ordinary_Fixed_Point): Turn into...
	(Image_Fixed_Point): ...this.
	(Is_Negative): Replace Long_Long_Float with Num.
	(Set_Image_Real): Likewise.  Use Double_T instead of single Num
	throughout the algorithm.
	* libgnat/s-imgflt.ads: New file.
	* libgnat/s-imglfl.ads: Likewise.
	* libgnat/s-imgllf.ads: Likewise.
	* libgnat/s-imagef.ads: Adjust comment.
	* libgnat/s-imguti.ads (Max_Real_Image_Length): New named number.
	* libgnat/s-powflt.ads (Maxpow): Adjust.
	(Powten): Turn into an exact table of double Float.
	* libgnat/s-powlfl.ads (Maxpow): Adjust.
	(Powten): Turn into an exact table of double Long_Float.
	* libgnat/s-powllf.ads (Maxpow): Adjust.
	(Powten): Turn into an exact table of double Long_Long_Float.
	* libgnat/s-valrea.ads: Change order of formal parameters.
	* libgnat/s-valrea.adb: Add with clause for System.Double_Real.
	(Double_Real): New instantiation.
	(Fast2Sum): Delete.
	(Large_Powten): New function.
	(Integer_to_Real): Use Quick_Two_Sum instead of Fast2Sum.  Convert
	the value to Double_T.  Do the scaling in Double_T for base 10.
	* libgnat/s-valflt.ads: Remove with/use clasue for Interfaces,
	add it for System.Unsigned_Types.  Use Unsigned.
	* libgnat/s-vallfl.ads: Remove with/use clasue for Interfaces,
	add it for System.Unsigned_Types.  Use Long_Unsigned.
	* libgnat/s-valllf.ads: Remove with/use clasue for Interfaces,
	add it for System.Unsigned_Types.  Use Long_Long_Unsigned.

2021-05-05  Piotr Trojanek  <trojanek@adacore.com>

	* sem_eval.adb (Eval_Arithmetic_Op): Call
	Set_Raises_Constraint_Error on real division by zero just like
	it is called for integer division by zero earlier in this
	routine.

2021-05-05  Piotr Trojanek  <trojanek@adacore.com>

	* freeze.adb (Build_Renamed_Body): Simplify IF and WHILE
	statements with the same condition.

2021-05-05  Piotr Trojanek  <trojanek@adacore.com>

	* pprint.adb (Expr_Name): Introduce local constants to make the
	code more readable and avoid repeated calls to Next to reach the
	ELSE part of an if-expression.

2021-05-04  Piotr Trojanek  <trojanek@adacore.com>

	* pprint.adb: Remove qualification of arbitrary calls to
	Sinfo.Expressions and Sinfo.Parameter_Associations.

2021-05-04  Piotr Trojanek  <trojanek@adacore.com>

	* pprint.adb (Expr_Name): Simplify with functional variant of
	UI_Image.

2021-05-04  Piotr Trojanek  <trojanek@adacore.com>

	* pprint.adb (To_Mixed): Removed.

2021-05-04  Piotr Trojanek  <trojanek@adacore.com>

	* pprint.adb (List_Name_Count): Change type from Integer to
	Natural.

2021-05-04  Yannick Moy  <moy@adacore.com>

	* pprint.adb (Expression_Image): Special case for
	expression-with-actions.

2021-05-04  Bob Duff  <duff@adacore.com>

	* exp_ch4.adb (Expand_Concatenate): Remove the non-optimization.

2021-05-04  Piotr Trojanek  <trojanek@adacore.com>

	* lib-xref.adb (Generate_Reference_To_Formals): Remove dedicated
	branch for generic subprograms (they are now handled together
	with non-generic subprograms in the ELSE branch); replace a
	low-level Ekind membership test with a high-level call to
	Is_Access_Subprogram_Type.

2021-05-04  Piotr Trojanek  <trojanek@adacore.com>

	* sem_ch12.adb (Check_Abstract_Primitives): Match First_Formal
	with Next_Formal.
	* sem_ch6.adb (Is_Non_Overriding_Operation): Likewise.

2021-05-04  Piotr Trojanek  <trojanek@adacore.com>

	* sem_prag.adb (Collect_Global_Item): Iterate directly over
	formals.

2021-05-04  Piotr Trojanek  <trojanek@adacore.com>

	* sem_prag.ads (Collect_Subprogram_Inputs_Outputs): Update
	comment; this routine is no longer used by GNATprove.
	* sem_prag.adb (Find_Role): The IN parameter is on output only
	when it belongs to non-function; also, the otherwise constant
	object can only be written by a non-function.
	(Collect_Global_Item): The IN parameter can only be written when
	it belongs to non-function; also, unnest this check to make it
	easier to read.

2021-05-04  Arnaud Charlet  <charlet@adacore.com>

	* libgnat/s-assert.ads (Assert_Failure): Now a renaming of
	Assertion_Error.
	* libgnat/a-assert.ads (Assertion_Error): Now a first class
	citizen.  Remove dependency on System.Assertions.
	* gcc-interface/a-assert.ads, gcc-interface/a-assert.adb: New.
	* gcc-interface/Make-lang.in (GNAT_ADA_OBJS, GNATBIND_OBJS): Add
	a-assert.o from gcc-interface.

2021-05-04  Yannick Moy  <moy@adacore.com>

	* erroutc.adb (Matches): Move spec...
	* erroutc.ads (Matches): ...here.

2021-05-04  Yannick Moy  <moy@adacore.com>

	* gnat1drv.adb (Adjust_Global_Switches): Force error marker in
	GNATprove mode.

2021-05-04  Bob Duff  <duff@adacore.com>

	* binde.adb: No need for ??? marks in Binde, because it is
	superseded by Bindo.
	* bindo-writers.adb (Write_Unit_Closure): Verified that -Ra
	works.
	* exp_ch4.adb, sinfo.ads (Expand_N_Type_Conversion): Rules for
	conversions passed to gigi are documented in sinfo.ads.
	(Expand_N_Unchecked_Type_Conversion): Comment is a duplicate of
	one in sinfo.ads.
	(Expand_N_In): Robert already added sufficient comments years
	after the ??? comment was inserted.
	(Expand_Membership_Minimize_Eliminate_Overflow): I don't see any
	reason why Stand should export Long_Long_Integer'Base -- it
	doesn't export any other base types.
	(Size_In_Storage_Elements): We are doing an allocator, so we
	don't care about sizes in bits.
	(Expand_N_Allocator): PolyORB isn't going to be significantly
	improved, so we're not going to mess with remote access to
	class-wide types.
	(Optimize_Return_Stmt): It's not important to optimize return
	statements in predicate functions -- there are many
	more-important optimizations we could do. Keep part of the
	comment without "???", to clarify why the "and then ...".
	(User_Defined_Primitive_Equality_Op): The optimization doesn't
	seem important enough.
	(Expand_N_Unchecked_Type_Conversion): Refactor to use
	Expand_N_Unchecked_Expression.
	(Make_Array_Comparison_Op): This seems like a case of "it it's
	not broken, don't fix it". Too much risk of causing bugs.
	* debug_a.adb: Remove ??? comments asking why Current_Error_Node
	is maintained unconditionally, and add a comment explaining why.
	* errout.adb: These kinds of minor bugs do indeed exist, but
	we're never going to get around to fixing them "properly", so we
	need this code for robustness.
	* gnatchop.adb (Read_File): Document when read can fail.
	* gnatdll.adb (Parse_Command_Line): Nobody is complaining about
	these arbitrary limits, so no need to use Table. Increase the
	limits just in case.  It is clear from the names what they are
	limits on.
	* gnatlink.adb: Add needed comments.
	(Delete): An existing comment makes clear it's intentional, and
	it's been like that since 1996.
	(Process_Args): Improve comments.
	(Search_Library_Path): Refactoring to avoid deep nesting.
	* inline.adb (Build_Body_To_Inline): Probably won't get around
	to doing that optimization.
	(Is_Unit_Subprogram): No, this should not be moved to Sem_Aux,
	because it is too specialized to this context.
	(Do_Reset): No comment is needed here; it's clear from the
	comment on Reset_Dispatching_Calls. Do_Reset is an artificial
	subprogram; if we had proper iterators, it would just be an if
	statement in the loop.
	(Rewrite_Function_Call): Probably won't get around to doing that
	optimization.
	* layout.adb (Layout_Type): The gigi comment doesn't need to be
	a ??? comment, and it's been that way since 2000.  The
	limitation to scalars will likely never be investigated, and
	it's been that way since 2009.
	* lib.adb (Check_Same_Extended_Unit): This doesn't look like
	something that needs fixing; it looks like a permanent
	workaround.
	* lib-load.adb (Change_Main_Unit_To_Spec): It is good enough in
	practice.
	(Load_Unit): Nobody will ever get around to investigating the
	obscure PMES oddity, and the optimization is not worth the
	trouble.
	* live.adb: It's not worth documenting this. It is used only
	with a debug switch. Nobody who has done significant work on it
	is still around, so it would require substantial investigation.
	* mdll.ads: I see no reason for USE.
	* namet.ads: Routines are obsolete, but they're not going
	anywhere anytime soon (too much work, and surprisingly delicate
	because of dependences on global variables).
	* osint.ads: Minor.
	* osint.adb: Improve comments.
	(Full_Lib_File_Name): Use Smart_Find_File.

2021-05-04  Piotr Trojanek  <trojanek@adacore.com>

	* exp_prag.adb, sem_prag.adb: Replace low-level Ekind membership
	tests with a high-level call to Is_Formal_Object.

2021-05-04  Arnaud Charlet  <charlet@adacore.com>

	* cstand.adb, sprint.adb, switch-c.adb, xr_tabls.ads,
	xr_tabls.adb, xref_lib.adb: Address ??? comments.

2021-05-04  Piotr Trojanek  <trojanek@adacore.com>

	* sem_prag.adb (Analyze_Global_Item): Take subprogram kind into
	account when accepting or rejecting a constant of an
	access-to-variable type as a global Output/In_Out; do this check
	inside an ELSIF branch to avoid unnecessary evaluation of the
	subsequent condition.

2021-05-04  Piotr Trojanek  <trojanek@adacore.com>

	* sem_prag.adb (Role_Error, Usage_Error): Replace calls to
	Name_Find and Get_Name_String with a call to To_String.

2021-05-04  Ed Schonberg  <schonberg@adacore.com>

	* exp_aggr.adb (Build_Siz_Exp): new function, subsidiary of
	Expand_Container_Aggregate, to create an expression to be used
	in the dynamic allocation of a container with a single container
	element association.
	(Add_Range): Handle static bounds of ranges over enumerations.
	(Expand_Container_Aggregate): Add declaration for size
	expression when needed, and use it in container object
	declaration for container.

2021-05-04  Arnaud Charlet  <charlet@adacore.com>

	* exp_ch7.adb (Build_Finalizer_Helper.New_Finalizer_Name):
	Unnest so that it can be reused.
	(Build_Finalizer_Helper.Process_Declarations): Call the
	xxx__finalize_body procedure of a package instantiation in case
	it contains finalization statements.  Code clean ups.
	(Build_Finalizer_Helper.Create_Finalizer): Export and set an
	Interface_Name for library level finalizers since these may be
	imported now.
	(Build_Finalizer_Helper): Need to process library level package
	body instantiations which may contain objects requiring
	finalization.
	* libgnat/s-finmas.ads: Fix typo.

2021-05-04  Arnaud Charlet  <charlet@adacore.com>

	* checks.adb (Append_Range_Checks, Apply_Selected_Length_Checks,
	Determine_Range, Insert_Range_Checks,
	Install_Null_Excluding_Check, Selected_Length_Checks,
	Selected_Range_Checks): Address ??? comments and code cleanups.

2021-05-04  Piotr Trojanek  <trojanek@adacore.com>

	* sem_prag.adb (Check_Mode_Restriction_In_Enclosing_Context):
	Apply the rule even with no explicit Global contract (and remove
	a dead condition for Refined_Global).

2021-05-04  Piotr Trojanek  <trojanek@adacore.com>

	* sem_prag.adb (Check_Mode_Restriction_In_Enclosing_Context):
	Extend check to protected entries.

2021-05-04  Piotr Trojanek  <trojanek@adacore.com>

	* sem_prag.adb (Check_Mode_Restriction_In_Enclosing_Context):
	Fix reference to SPARK RM rule number.

2021-05-04  Eric Botcazou  <ebotcazou@adacore.com>

	* exp_intr.adb: Remove with/use clauses for Urealp.
	(Expand_Is_Negative): Delete.
	(Expand_Intrinsic_Call): Do not call it.
	* rtsfind.ads (RE_Id): Remove RE_Float_Unsigned.
	(RE_Unit_Table): Remove entry for RE_Float_Unsigned.
	* snames.ads-tmpl (Name_Is_Negative): Delete.
	* libgnat/s-imgrea.ads (Set_Image_Real): Fix mode of S parameter.
	* libgnat/s-imgrea.adb: Add with/use clauses for System.Img_Util.
	(LLU): New subtype.
	(Maxdigs): Use it.
	(Is_Negative): Reimplement.
	(Image_Floating_Point): Simplify.
	(Set_Image_Real): Fix mode of S parameter.  Remove the low-level
	processing on characters.  Flip the sign of the Scale variable.
	Compute the maximum number of digits for the straight notation.
	Call Set_Decimal_Digits at the end to do the final formatting.
	* libgnat/s-imguti.ads (Floating_Invalid_Value): New type.
	(Set_Floating_Invalid_Value): New procedure.
	* libgnat/s-imguti.adb (Set_Floating_Invalid_Value): Implement it
	based on existing code from Set_Image_Real.
	* libgnat/s-unstyp.ads (Float_Unsigned): Delete.

2021-05-04  Piotr Trojanek  <trojanek@adacore.com>

	* csets.adb (Initialize): Refactor into CASE statement; raise
	exception on unsupported code of character set (it will be
	gently rejected earlier when scanning command line switches).
	* switch-b.adb (Scan_Binder_Switches): Refactor into a
	membership expression; add missing '9' choice; reorder as
	described by GNAT UG, section 4.3.11.
	* switch-c.adb (Scan_Front_End_Switches): Refactor into a
	membership expression and reorder as above.
	* doc/gnat_ugn/building_executable_programs_with_gnat.rst
	(gnatic): Mention '5' as an allowed value for "c".
	* gnat_ugn.texi: Regenerate.

2021-05-04  Piotr Trojanek  <trojanek@adacore.com>

	* errout.adb (Error_Msg_Internal): Add assertion to prevent
	style mistakes reappearing in the future.

2021-05-04  Javier Miranda  <miranda@adacore.com>

	* exp_ch4.adb (Tagged_Membership): Remove wrong condition that
	is not consistent with the documentation of this subprogram.

2021-05-04  Yannick Moy  <moy@adacore.com>

	* sem_res.adb (Valid_Conversion): Make message a continuation.

2021-05-04  Arnaud Charlet  <charlet@adacore.com>

	* styleg.adb: Address ??? comments.

2021-05-03  Arnaud Charlet  <charlet@adacore.com>

	* libgnat/a-stunau.ads, libgnat/a-stunau.adb,
	libgnat/a-stunau__shared.adb (Set_String): Remove old version,
	replace by a new version taking a callback to set the string.

2021-05-03  Arnaud Charlet  <charlet@adacore.com>

	* libgnat/a-coorma.ads (Map): Add missing
	Preelaborate_Initialization.

2021-05-03  Piotr Trojanek  <trojanek@adacore.com>

	* exp_ch4.adb (Analyze_Number_Declaration, Expand_N_Op_Expon):
	Simplify with Is_Universal_Numeric_Type.
	* sem_attr.adb (Resolve_Attribute): Likewise.
	* sem_ch3.adb: Likewise.
	* sem_ch4.adb (Check_Common_Type, Check_Arithmetic_Pair):
	Likewise.
	* sem_eval.adb (Eval_Unary_Op, Test_In_Range): Likewise.
	* sem_res.adb (Resolve_Arithmetic_Op, Resolve_Membership_Op,
	Resolve_Op_Expon, Resolve_Unary_Op, Set_Mixed_Mode_Operand,
	Set_Operand_Type): Likewise.
	* sem_type.adb (Disambiguate, Find_Unique_Type): Likewise.
	* sem_util.adb (Universal_Interpretation): Likewise.

2021-05-03  Piotr Trojanek  <trojanek@adacore.com>

	* exp_aggr.adb (Max_Aggregate_Size): Add header boxes for nested
	routines; move a local constant after nested subprogram bodies;
	refill comment.

2021-05-03  Piotr Trojanek  <trojanek@adacore.com>

	* sem_attr.adb (Analyze_Attribute): Reuse Resolve with implicit
	type when analysing attribute Priority.
	* sem_ch5.adb (Analyze_Case_Statement): Likewise for a rare case
	in analysis of case statements.
	(Analyze_Iterator_Specification): Likewise for non-overloaded
	domain of iteration.

2021-05-03  Piotr Trojanek  <trojanek@adacore.com>

	* einfo.adb (Write_Entity_Info): Simplify an Ekind membership
	test.
	* exp_aggr.adb (Is_CCG_Supported_Aggregate): Likewise.

2021-05-03  Piotr Trojanek  <trojanek@adacore.com>

	* exp_ch7.adb (Build_Finalize_Statements): Refine type of a
	local counter variable.
	* exp_dist.adb (Append_Record_Traversal): Refine type of Counter
	parameter.
	(Add_Process_Element): Likewise.
	(Build_From_Any_Call): Refine type of a local counter variable.
	(Build_From_Any_Function): Likewise.
	(Build_To_Any_Function): Likewise.
	(FA_Rec_Add_Process_Element): Likewise.
	(TA_Append_Record_Traversal): Likewise.
	(TA_Rec_Add_Process_Element): Likewise.

2021-05-03  Piotr Trojanek  <trojanek@adacore.com>

	* rtsfind.adb (SPARK_Implicit_Load): Simplify with Discard_Node.

2021-05-03  Arnaud Charlet  <charlet@adacore.com>

	* Makefile.rtl: Update copyright notice.
	* ada_get_targ.adb: Likewise.
	* adabkend.adb: Likewise.
	* adabkend.ads: Likewise.
	* adadecode.c: Likewise.
	* adadecode.h: Likewise.
	* adaint.c: Likewise.
	* adaint.h: Likewise.
	* affinity.c: Likewise.
	* ali-util.adb: Likewise.
	* ali-util.ads: Likewise.
	* ali.adb: Likewise.
	* ali.ads: Likewise.
	* alloc.ads: Likewise.
	* argv-lynxos178-raven-cert.c: Likewise.
	* argv.c: Likewise.
	* aspects.adb: Likewise.
	* aspects.ads: Likewise.
	* atree.adb: Likewise.
	* atree.ads: Likewise.
	* atree.h: Likewise.
	* aux-io.c: Likewise.
	* back_end.adb: Likewise.
	* back_end.ads: Likewise.
	* bcheck.adb: Likewise.
	* bcheck.ads: Likewise.
	* binde.adb: Likewise.
	* binde.ads: Likewise.
	* binderr.adb: Likewise.
	* binderr.ads: Likewise.
	* bindgen.adb: Likewise.
	* bindgen.ads: Likewise.
	* bindo-augmentors.adb: Likewise.
	* bindo-augmentors.ads: Likewise.
	* bindo-builders.adb: Likewise.
	* bindo-builders.ads: Likewise.
	* bindo-diagnostics.adb: Likewise.
	* bindo-diagnostics.ads: Likewise.
	* bindo-elaborators.adb: Likewise.
	* bindo-elaborators.ads: Likewise.
	* bindo-graphs.adb: Likewise.
	* bindo-graphs.ads: Likewise.
	* bindo-units.adb: Likewise.
	* bindo-units.ads: Likewise.
	* bindo-validators.adb: Likewise.
	* bindo-validators.ads: Likewise.
	* bindo-writers.adb: Likewise.
	* bindo-writers.ads: Likewise.
	* bindo.adb: Likewise.
	* bindo.ads: Likewise.
	* bindusg.adb: Likewise.
	* bindusg.ads: Likewise.
	* butil.adb: Likewise.
	* butil.ads: Likewise.
	* cal.c: Likewise.
	* casing.adb: Likewise.
	* casing.ads: Likewise.
	* ceinfo.adb: Likewise.
	* checks.adb: Likewise.
	* checks.ads: Likewise.
	* cio.c: Likewise.
	* clean.adb: Likewise.
	* clean.ads: Likewise.
	* comperr.adb: Likewise.
	* comperr.ads: Likewise.
	* contracts.adb: Likewise.
	* contracts.ads: Likewise.
	* csets.adb: Likewise.
	* csets.ads: Likewise.
	* csinfo.adb: Likewise.
	* cstand.adb: Likewise.
	* cstand.ads: Likewise.
	* cstreams.c: Likewise.
	* ctrl_c.c: Likewise.
	* debug.adb: Likewise.
	* debug.ads: Likewise.
	* debug_a.adb: Likewise.
	* debug_a.ads: Likewise.
	* einfo.adb: Likewise.
	* einfo.ads: Likewise.
	* elists.adb: Likewise.
	* elists.ads: Likewise.
	* elists.h: Likewise.
	* env.c: Likewise.
	* env.h: Likewise.
	* err_vars.ads: Likewise.
	* errno.c: Likewise.
	* errout.adb: Likewise.
	* errout.ads: Likewise.
	* erroutc.adb: Likewise.
	* erroutc.ads: Likewise.
	* errutil.adb: Likewise.
	* errutil.ads: Likewise.
	* eval_fat.adb: Likewise.
	* eval_fat.ads: Likewise.
	* exit.c: Likewise.
	* exp_aggr.adb: Likewise.
	* exp_aggr.ads: Likewise.
	* exp_atag.adb: Likewise.
	* exp_atag.ads: Likewise.
	* exp_attr.adb: Likewise.
	* exp_attr.ads: Likewise.
	* exp_cg.adb: Likewise.
	* exp_cg.ads: Likewise.
	* exp_ch10.ads: Likewise.
	* exp_ch11.adb: Likewise.
	* exp_ch11.ads: Likewise.
	* exp_ch12.adb: Likewise.
	* exp_ch12.ads: Likewise.
	* exp_ch13.adb: Likewise.
	* exp_ch13.ads: Likewise.
	* exp_ch2.adb: Likewise.
	* exp_ch2.ads: Likewise.
	* exp_ch3.adb: Likewise.
	* exp_ch3.ads: Likewise.
	* exp_ch4.adb: Likewise.
	* exp_ch4.ads: Likewise.
	* exp_ch5.adb: Likewise.
	* exp_ch5.ads: Likewise.
	* exp_ch6.adb: Likewise.
	* exp_ch6.ads: Likewise.
	* exp_ch7.adb: Likewise.
	* exp_ch7.ads: Likewise.
	* exp_ch8.adb: Likewise.
	* exp_ch8.ads: Likewise.
	* exp_ch9.adb: Likewise.
	* exp_ch9.ads: Likewise.
	* exp_code.adb: Likewise.
	* exp_code.ads: Likewise.
	* exp_dbug.adb: Likewise.
	* exp_dbug.ads: Likewise.
	* exp_disp.adb: Likewise.
	* exp_disp.ads: Likewise.
	* exp_dist.adb: Likewise.
	* exp_dist.ads: Likewise.
	* exp_fixd.adb: Likewise.
	* exp_fixd.ads: Likewise.
	* exp_imgv.adb: Likewise.
	* exp_imgv.ads: Likewise.
	* exp_intr.adb: Likewise.
	* exp_intr.ads: Likewise.
	* exp_pakd.adb: Likewise.
	* exp_pakd.ads: Likewise.
	* exp_prag.adb: Likewise.
	* exp_prag.ads: Likewise.
	* exp_put_image.adb: Likewise.
	* exp_put_image.ads: Likewise.
	* exp_sel.adb: Likewise.
	* exp_sel.ads: Likewise.
	* exp_smem.adb: Likewise.
	* exp_smem.ads: Likewise.
	* exp_spark.adb: Likewise.
	* exp_spark.ads: Likewise.
	* exp_strm.adb: Likewise.
	* exp_strm.ads: Likewise.
	* exp_tss.adb: Likewise.
	* exp_tss.ads: Likewise.
	* exp_unst.adb: Likewise.
	* exp_unst.ads: Likewise.
	* exp_util.adb: Likewise.
	* exp_util.ads: Likewise.
	* expander.adb: Likewise.
	* expander.ads: Likewise.
	* expect.c: Likewise.
	* fe.h: Likewise.
	* final.c: Likewise.
	* fmap.adb: Likewise.
	* fmap.ads: Likewise.
	* fname-sf.adb: Likewise.
	* fname-sf.ads: Likewise.
	* fname-uf.adb: Likewise.
	* fname-uf.ads: Likewise.
	* fname.adb: Likewise.
	* fname.ads: Likewise.
	* freeze.adb: Likewise.
	* freeze.ads: Likewise.
	* frontend.adb: Likewise.
	* frontend.ads: Likewise.
	* gcc-interface/ada-tree.h: Likewise.
	* gcc-interface/ada.h: Likewise.
	* gcc-interface/cuintp.c: Likewise.
	* gcc-interface/decl.c: Likewise.
	* gcc-interface/gadaint.h: Likewise.
	* gcc-interface/gigi.h: Likewise.
	* gcc-interface/lang-specs.h: Likewise.
	* gcc-interface/misc.c: Likewise.
	* gcc-interface/system.ads: Likewise.
	* gcc-interface/targtyps.c: Likewise.
	* gcc-interface/trans.c: Likewise.
	* gcc-interface/utils.c: Likewise.
	* gcc-interface/utils2.c: Likewise.
	* get_scos.adb: Likewise.
	* get_scos.ads: Likewise.
	* get_targ.adb: Likewise.
	* get_targ.ads: Likewise.
	* ghost.adb: Likewise.
	* ghost.ads: Likewise.
	* gnat1drv.adb: Likewise.
	* gnat1drv.ads: Likewise.
	* gnat_cuda.adb: Likewise.
	* gnat_cuda.ads: Likewise.
	* gnatbind.adb: Likewise.
	* gnatbind.ads: Likewise.
	* gnatchop.adb: Likewise.
	* gnatclean.adb: Likewise.
	* gnatcmd.adb: Likewise.
	* gnatcmd.ads: Likewise.
	* gnatdll.adb: Likewise.
	* gnatfind.adb: Likewise.
	* gnatkr.adb: Likewise.
	* gnatkr.ads: Likewise.
	* gnatlink.adb: Likewise.
	* gnatlink.ads: Likewise.
	* gnatls.adb: Likewise.
	* gnatls.ads: Likewise.
	* gnatmake.adb: Likewise.
	* gnatmake.ads: Likewise.
	* gnatname.adb: Likewise.
	* gnatname.ads: Likewise.
	* gnatprep.adb: Likewise.
	* gnatprep.ads: Likewise.
	* gnatvsn.adb: Likewise.
	* gnatvsn.ads: Likewise.
	* gnatxref.adb: Likewise.
	* gprep.adb: Likewise.
	* gprep.ads: Likewise.
	* gsocket.h: Likewise.
	* hostparm.ads: Likewise.
	* impunit.adb: Likewise.
	* impunit.ads: Likewise.
	* indepsw-aix.adb: Likewise.
	* indepsw-darwin.adb: Likewise.
	* indepsw-gnu.adb: Likewise.
	* indepsw.adb: Likewise.
	* indepsw.ads: Likewise.
	* init.c: Likewise.
	* initialize.c: Likewise.
	* inline.adb: Likewise.
	* inline.ads: Likewise.
	* itypes.adb: Likewise.
	* itypes.ads: Likewise.
	* krunch.adb: Likewise.
	* krunch.ads: Likewise.
	* layout.adb: Likewise.
	* layout.ads: Likewise.
	* lib-list.adb: Likewise.
	* lib-load.adb: Likewise.
	* lib-load.ads: Likewise.
	* lib-sort.adb: Likewise.
	* lib-util.adb: Likewise.
	* lib-util.ads: Likewise.
	* lib-writ.adb: Likewise.
	* lib-writ.ads: Likewise.
	* lib-xref-spark_specific.adb: Likewise.
	* lib-xref.adb: Likewise.
	* lib-xref.ads: Likewise.
	* lib.adb: Likewise.
	* lib.ads: Likewise.
	* libgnarl/a-astaco.adb: Likewise.
	* libgnarl/a-dispat.adb: Likewise.
	* libgnarl/a-dynpri.adb: Likewise.
	* libgnarl/a-etgrbu.ads: Likewise.
	* libgnarl/a-exetim__darwin.adb: Likewise.
	* libgnarl/a-exetim__default.ads: Likewise.
	* libgnarl/a-exetim__mingw.adb: Likewise.
	* libgnarl/a-exetim__mingw.ads: Likewise.
	* libgnarl/a-exetim__posix.adb: Likewise.
	* libgnarl/a-interr.adb: Likewise.
	* libgnarl/a-interr.ads: Likewise.
	* libgnarl/a-intnam.ads: Likewise.
	* libgnarl/a-intnam__aix.ads: Likewise.
	* libgnarl/a-intnam__darwin.ads: Likewise.
	* libgnarl/a-intnam__dragonfly.ads: Likewise.
	* libgnarl/a-intnam__dummy.ads: Likewise.
	* libgnarl/a-intnam__freebsd.ads: Likewise.
	* libgnarl/a-intnam__hpux.ads: Likewise.
	* libgnarl/a-intnam__linux.ads: Likewise.
	* libgnarl/a-intnam__lynxos.ads: Likewise.
	* libgnarl/a-intnam__mingw.ads: Likewise.
	* libgnarl/a-intnam__qnx.ads: Likewise.
	* libgnarl/a-intnam__rtems.ads: Likewise.
	* libgnarl/a-intnam__solaris.ads: Likewise.
	* libgnarl/a-intnam__vxworks.ads: Likewise.
	* libgnarl/a-reatim.adb: Likewise.
	* libgnarl/a-reatim.ads: Likewise.
	* libgnarl/a-retide.adb: Likewise.
	* libgnarl/a-retide.ads: Likewise.
	* libgnarl/a-rttiev.adb: Likewise.
	* libgnarl/a-rttiev.ads: Likewise.
	* libgnarl/a-synbar.adb: Likewise.
	* libgnarl/a-synbar.ads: Likewise.
	* libgnarl/a-synbar__posix.adb: Likewise.
	* libgnarl/a-synbar__posix.ads: Likewise.
	* libgnarl/a-sytaco.adb: Likewise.
	* libgnarl/a-sytaco.ads: Likewise.
	* libgnarl/a-tasatt.adb: Likewise.
	* libgnarl/a-tasatt.ads: Likewise.
	* libgnarl/a-taside.adb: Likewise.
	* libgnarl/a-taside.ads: Likewise.
	* libgnarl/a-tasini.adb: Likewise.
	* libgnarl/a-tasini.ads: Likewise.
	* libgnarl/a-taster.adb: Likewise.
	* libgnarl/g-boubuf.adb: Likewise.
	* libgnarl/g-boubuf.ads: Likewise.
	* libgnarl/g-boumai.ads: Likewise.
	* libgnarl/g-semaph.adb: Likewise.
	* libgnarl/g-semaph.ads: Likewise.
	* libgnarl/g-signal.adb: Likewise.
	* libgnarl/g-signal.ads: Likewise.
	* libgnarl/g-tastus.ads: Likewise.
	* libgnarl/g-thread.adb: Likewise.
	* libgnarl/g-thread.ads: Likewise.
	* libgnarl/i-vxinco.adb: Likewise.
	* libgnarl/i-vxinco.ads: Likewise.
	* libgnarl/s-inmaop.ads: Likewise.
	* libgnarl/s-inmaop__dummy.adb: Likewise.
	* libgnarl/s-inmaop__posix.adb: Likewise.
	* libgnarl/s-inmaop__vxworks.adb: Likewise.
	* libgnarl/s-interr.adb: Likewise.
	* libgnarl/s-interr.ads: Likewise.
	* libgnarl/s-interr__dummy.adb: Likewise.
	* libgnarl/s-interr__hwint.adb: Likewise.
	* libgnarl/s-interr__sigaction.adb: Likewise.
	* libgnarl/s-interr__vxworks.adb: Likewise.
	* libgnarl/s-intman.ads: Likewise.
	* libgnarl/s-intman__android.adb: Likewise.
	* libgnarl/s-intman__dummy.adb: Likewise.
	* libgnarl/s-intman__lynxos.adb: Likewise.
	* libgnarl/s-intman__mingw.adb: Likewise.
	* libgnarl/s-intman__posix.adb: Likewise.
	* libgnarl/s-intman__qnx.adb: Likewise.
	* libgnarl/s-intman__solaris.adb: Likewise.
	* libgnarl/s-intman__susv3.adb: Likewise.
	* libgnarl/s-intman__vxworks.adb: Likewise.
	* libgnarl/s-intman__vxworks.ads: Likewise.
	* libgnarl/s-linux.ads: Likewise.
	* libgnarl/s-linux__alpha.ads: Likewise.
	* libgnarl/s-linux__android.ads: Likewise.
	* libgnarl/s-linux__hppa.ads: Likewise.
	* libgnarl/s-linux__mips.ads: Likewise.
	* libgnarl/s-linux__riscv.ads: Likewise.
	* libgnarl/s-linux__sparc.ads: Likewise.
	* libgnarl/s-linux__x32.ads: Likewise.
	* libgnarl/s-mudido.adb: Likewise.
	* libgnarl/s-mudido__affinity.adb: Likewise.
	* libgnarl/s-osinte__aix.adb: Likewise.
	* libgnarl/s-osinte__aix.ads: Likewise.
	* libgnarl/s-osinte__android.adb: Likewise.
	* libgnarl/s-osinte__android.ads: Likewise.
	* libgnarl/s-osinte__darwin.adb: Likewise.
	* libgnarl/s-osinte__darwin.ads: Likewise.
	* libgnarl/s-osinte__dragonfly.adb: Likewise.
	* libgnarl/s-osinte__dragonfly.ads: Likewise.
	* libgnarl/s-osinte__dummy.ads: Likewise.
	* libgnarl/s-osinte__freebsd.adb: Likewise.
	* libgnarl/s-osinte__freebsd.ads: Likewise.
	* libgnarl/s-osinte__gnu.adb: Likewise.
	* libgnarl/s-osinte__gnu.ads: Likewise.
	* libgnarl/s-osinte__hpux-dce.adb: Likewise.
	* libgnarl/s-osinte__hpux-dce.ads: Likewise.
	* libgnarl/s-osinte__hpux.ads: Likewise.
	* libgnarl/s-osinte__kfreebsd-gnu.ads: Likewise.
	* libgnarl/s-osinte__linux.ads: Likewise.
	* libgnarl/s-osinte__lynxos178.adb: Likewise.
	* libgnarl/s-osinte__lynxos178e.ads: Likewise.
	* libgnarl/s-osinte__mingw.ads: Likewise.
	* libgnarl/s-osinte__posix.adb: Likewise.
	* libgnarl/s-osinte__qnx.adb: Likewise.
	* libgnarl/s-osinte__qnx.ads: Likewise.
	* libgnarl/s-osinte__rtems.adb: Likewise.
	* libgnarl/s-osinte__rtems.ads: Likewise.
	* libgnarl/s-osinte__solaris.adb: Likewise.
	* libgnarl/s-osinte__solaris.ads: Likewise.
	* libgnarl/s-osinte__vxworks.adb: Likewise.
	* libgnarl/s-osinte__vxworks.ads: Likewise.
	* libgnarl/s-osinte__x32.adb: Likewise.
	* libgnarl/s-proinf.adb: Likewise.
	* libgnarl/s-proinf.ads: Likewise.
	* libgnarl/s-qnx.ads: Likewise.
	* libgnarl/s-solita.adb: Likewise.
	* libgnarl/s-solita.ads: Likewise.
	* libgnarl/s-stusta.adb: Likewise.
	* libgnarl/s-stusta.ads: Likewise.
	* libgnarl/s-taasde.adb: Likewise.
	* libgnarl/s-taasde.ads: Likewise.
	* libgnarl/s-tadeca.adb: Likewise.
	* libgnarl/s-tadeca.ads: Likewise.
	* libgnarl/s-tadert.adb: Likewise.
	* libgnarl/s-tadert.ads: Likewise.
	* libgnarl/s-taenca.adb: Likewise.
	* libgnarl/s-taenca.ads: Likewise.
	* libgnarl/s-taprob.adb: Likewise.
	* libgnarl/s-taprob.ads: Likewise.
	* libgnarl/s-taprop.ads: Likewise.
	* libgnarl/s-taprop__dummy.adb: Likewise.
	* libgnarl/s-taprop__hpux-dce.adb: Likewise.
	* libgnarl/s-taprop__linux.adb: Likewise.
	* libgnarl/s-taprop__mingw.adb: Likewise.
	* libgnarl/s-taprop__posix.adb: Likewise.
	* libgnarl/s-taprop__qnx.adb: Likewise.
	* libgnarl/s-taprop__solaris.adb: Likewise.
	* libgnarl/s-taprop__vxworks.adb: Likewise.
	* libgnarl/s-tarest.adb: Likewise.
	* libgnarl/s-tarest.ads: Likewise.
	* libgnarl/s-tasdeb.adb: Likewise.
	* libgnarl/s-tasdeb.ads: Likewise.
	* libgnarl/s-tasinf.adb: Likewise.
	* libgnarl/s-tasinf.ads: Likewise.
	* libgnarl/s-tasinf__linux.adb: Likewise.
	* libgnarl/s-tasinf__linux.ads: Likewise.
	* libgnarl/s-tasinf__mingw.adb: Likewise.
	* libgnarl/s-tasinf__mingw.ads: Likewise.
	* libgnarl/s-tasinf__solaris.adb: Likewise.
	* libgnarl/s-tasinf__solaris.ads: Likewise.
	* libgnarl/s-tasinf__vxworks.ads: Likewise.
	* libgnarl/s-tasini.adb: Likewise.
	* libgnarl/s-tasini.ads: Likewise.
	* libgnarl/s-taskin.adb: Likewise.
	* libgnarl/s-taskin.ads: Likewise.
	* libgnarl/s-taspri__dummy.ads: Likewise.
	* libgnarl/s-taspri__hpux-dce.ads: Likewise.
	* libgnarl/s-taspri__lynxos.ads: Likewise.
	* libgnarl/s-taspri__mingw.ads: Likewise.
	* libgnarl/s-taspri__posix-noaltstack.ads: Likewise.
	* libgnarl/s-taspri__posix.ads: Likewise.
	* libgnarl/s-taspri__solaris.ads: Likewise.
	* libgnarl/s-taspri__vxworks.ads: Likewise.
	* libgnarl/s-tasque.adb: Likewise.
	* libgnarl/s-tasque.ads: Likewise.
	* libgnarl/s-tasren.adb: Likewise.
	* libgnarl/s-tasren.ads: Likewise.
	* libgnarl/s-tasres.ads: Likewise.
	* libgnarl/s-tassta.adb: Likewise.
	* libgnarl/s-tassta.ads: Likewise.
	* libgnarl/s-tasuti.adb: Likewise.
	* libgnarl/s-tasuti.ads: Likewise.
	* libgnarl/s-tataat.adb: Likewise.
	* libgnarl/s-tataat.ads: Likewise.
	* libgnarl/s-tpinop.adb: Likewise.
	* libgnarl/s-tpinop.ads: Likewise.
	* libgnarl/s-tpoaal.adb: Likewise.
	* libgnarl/s-tpoben.adb: Likewise.
	* libgnarl/s-tpoben.ads: Likewise.
	* libgnarl/s-tpobmu.adb: Likewise.
	* libgnarl/s-tpobmu.ads: Likewise.
	* libgnarl/s-tpobop.adb: Likewise.
	* libgnarl/s-tpobop.ads: Likewise.
	* libgnarl/s-tpopmo.adb: Likewise.
	* libgnarl/s-tpopsp__posix-foreign.adb: Likewise.
	* libgnarl/s-tpopsp__posix.adb: Likewise.
	* libgnarl/s-tpopsp__solaris.adb: Likewise.
	* libgnarl/s-tpopsp__tls.adb: Likewise.
	* libgnarl/s-tpopsp__vxworks-rtp.adb: Likewise.
	* libgnarl/s-tpopsp__vxworks-tls.adb: Likewise.
	* libgnarl/s-tpopsp__vxworks.adb: Likewise.
	* libgnarl/s-tporft.adb: Likewise.
	* libgnarl/s-tposen.adb: Likewise.
	* libgnarl/s-tposen.ads: Likewise.
	* libgnarl/s-vxwext.adb: Likewise.
	* libgnarl/s-vxwext.ads: Likewise.
	* libgnarl/s-vxwext__kernel-smp.adb: Likewise.
	* libgnarl/s-vxwext__kernel.adb: Likewise.
	* libgnarl/s-vxwext__kernel.ads: Likewise.
	* libgnarl/s-vxwext__noints.adb: Likewise.
	* libgnarl/s-vxwext__rtp-smp.adb: Likewise.
	* libgnarl/s-vxwext__rtp.adb: Likewise.
	* libgnarl/s-vxwext__rtp.ads: Likewise.
	* libgnarl/s-vxwext__vthreads.ads: Likewise.
	* libgnarl/s-vxwork__aarch64.ads: Likewise.
	* libgnarl/s-vxwork__arm.ads: Likewise.
	* libgnarl/s-vxwork__ppc.ads: Likewise.
	* libgnarl/s-vxwork__x86.ads: Likewise.
	* libgnarl/thread.c: Likewise.
	* libgnat/a-assert.adb: Likewise.
	* libgnat/a-assert.ads: Likewise.
	* libgnat/a-btgbso.adb: Likewise.
	* libgnat/a-btgbso.ads: Likewise.
	* libgnat/a-calari.adb: Likewise.
	* libgnat/a-calari.ads: Likewise.
	* libgnat/a-calcon.adb: Likewise.
	* libgnat/a-calcon.ads: Likewise.
	* libgnat/a-caldel.adb: Likewise.
	* libgnat/a-caldel.ads: Likewise.
	* libgnat/a-calend.adb: Likewise.
	* libgnat/a-calend.ads: Likewise.
	* libgnat/a-calfor.adb: Likewise.
	* libgnat/a-calfor.ads: Likewise.
	* libgnat/a-catizo.adb: Likewise.
	* libgnat/a-cbdlli.adb: Likewise.
	* libgnat/a-cbdlli.ads: Likewise.
	* libgnat/a-cbhama.adb: Likewise.
	* libgnat/a-cbhama.ads: Likewise.
	* libgnat/a-cbhase.adb: Likewise.
	* libgnat/a-cbhase.ads: Likewise.
	* libgnat/a-cbmutr.adb: Likewise.
	* libgnat/a-cbmutr.ads: Likewise.
	* libgnat/a-cborma.adb: Likewise.
	* libgnat/a-cborma.ads: Likewise.
	* libgnat/a-cborse.adb: Likewise.
	* libgnat/a-cborse.ads: Likewise.
	* libgnat/a-cbprqu.adb: Likewise.
	* libgnat/a-cbprqu.ads: Likewise.
	* libgnat/a-cbsyqu.adb: Likewise.
	* libgnat/a-cbsyqu.ads: Likewise.
	* libgnat/a-cdlili.adb: Likewise.
	* libgnat/a-cdlili.ads: Likewise.
	* libgnat/a-cfdlli.adb: Likewise.
	* libgnat/a-cfdlli.ads: Likewise.
	* libgnat/a-cfhama.adb: Likewise.
	* libgnat/a-cfhama.ads: Likewise.
	* libgnat/a-cfhase.adb: Likewise.
	* libgnat/a-cfhase.ads: Likewise.
	* libgnat/a-cfinve.adb: Likewise.
	* libgnat/a-cfinve.ads: Likewise.
	* libgnat/a-cforma.adb: Likewise.
	* libgnat/a-cforma.ads: Likewise.
	* libgnat/a-cforse.adb: Likewise.
	* libgnat/a-cforse.ads: Likewise.
	* libgnat/a-cgaaso.adb: Likewise.
	* libgnat/a-cgaaso.ads: Likewise.
	* libgnat/a-cgarso.adb: Likewise.
	* libgnat/a-cgcaso.adb: Likewise.
	* libgnat/a-chacon.adb: Likewise.
	* libgnat/a-chacon.ads: Likewise.
	* libgnat/a-chahan.adb: Likewise.
	* libgnat/a-chahan.ads: Likewise.
	* libgnat/a-chlat9.ads: Likewise.
	* libgnat/a-chtgbk.adb: Likewise.
	* libgnat/a-chtgbk.ads: Likewise.
	* libgnat/a-chtgbo.adb: Likewise.
	* libgnat/a-chtgbo.ads: Likewise.
	* libgnat/a-chtgke.adb: Likewise.
	* libgnat/a-chtgke.ads: Likewise.
	* libgnat/a-chtgop.adb: Likewise.
	* libgnat/a-chtgop.ads: Likewise.
	* libgnat/a-chzla1.ads: Likewise.
	* libgnat/a-chzla9.ads: Likewise.
	* libgnat/a-cidlli.adb: Likewise.
	* libgnat/a-cidlli.ads: Likewise.
	* libgnat/a-cihama.adb: Likewise.
	* libgnat/a-cihama.ads: Likewise.
	* libgnat/a-cihase.adb: Likewise.
	* libgnat/a-cihase.ads: Likewise.
	* libgnat/a-cimutr.adb: Likewise.
	* libgnat/a-cimutr.ads: Likewise.
	* libgnat/a-ciorma.adb: Likewise.
	* libgnat/a-ciorma.ads: Likewise.
	* libgnat/a-ciormu.adb: Likewise.
	* libgnat/a-ciormu.ads: Likewise.
	* libgnat/a-ciorse.adb: Likewise.
	* libgnat/a-ciorse.ads: Likewise.
	* libgnat/a-clrefi.adb: Likewise.
	* libgnat/a-clrefi.ads: Likewise.
	* libgnat/a-coboho.adb: Likewise.
	* libgnat/a-coboho.ads: Likewise.
	* libgnat/a-cobove.adb: Likewise.
	* libgnat/a-cobove.ads: Likewise.
	* libgnat/a-cofove.adb: Likewise.
	* libgnat/a-cofove.ads: Likewise.
	* libgnat/a-cofuba.adb: Likewise.
	* libgnat/a-cofuba.ads: Likewise.
	* libgnat/a-cofuma.adb: Likewise.
	* libgnat/a-cofuma.ads: Likewise.
	* libgnat/a-cofuse.adb: Likewise.
	* libgnat/a-cofuse.ads: Likewise.
	* libgnat/a-cofuve.adb: Likewise.
	* libgnat/a-cofuve.ads: Likewise.
	* libgnat/a-cogeso.adb: Likewise.
	* libgnat/a-cogeso.ads: Likewise.
	* libgnat/a-cohama.adb: Likewise.
	* libgnat/a-cohama.ads: Likewise.
	* libgnat/a-cohase.adb: Likewise.
	* libgnat/a-cohase.ads: Likewise.
	* libgnat/a-cohata.ads: Likewise.
	* libgnat/a-coinho.adb: Likewise.
	* libgnat/a-coinho.ads: Likewise.
	* libgnat/a-coinho__shared.adb: Likewise.
	* libgnat/a-coinho__shared.ads: Likewise.
	* libgnat/a-coinve.adb: Likewise.
	* libgnat/a-coinve.ads: Likewise.
	* libgnat/a-colien.adb: Likewise.
	* libgnat/a-colien.ads: Likewise.
	* libgnat/a-colire.adb: Likewise.
	* libgnat/a-colire.ads: Likewise.
	* libgnat/a-comlin.adb: Likewise.
	* libgnat/a-comlin.ads: Likewise.
	* libgnat/a-comutr.adb: Likewise.
	* libgnat/a-comutr.ads: Likewise.
	* libgnat/a-conhel.adb: Likewise.
	* libgnat/a-conhel.ads: Likewise.
	* libgnat/a-convec.adb: Likewise.
	* libgnat/a-convec.ads: Likewise.
	* libgnat/a-coorma.adb: Likewise.
	* libgnat/a-coorma.ads: Likewise.
	* libgnat/a-coormu.adb: Likewise.
	* libgnat/a-coormu.ads: Likewise.
	* libgnat/a-coorse.adb: Likewise.
	* libgnat/a-coorse.ads: Likewise.
	* libgnat/a-coprnu.adb: Likewise.
	* libgnat/a-coprnu.ads: Likewise.
	* libgnat/a-crbltr.ads: Likewise.
	* libgnat/a-crbtgk.adb: Likewise.
	* libgnat/a-crbtgk.ads: Likewise.
	* libgnat/a-crbtgo.adb: Likewise.
	* libgnat/a-crbtgo.ads: Likewise.
	* libgnat/a-crdlli.adb: Likewise.
	* libgnat/a-crdlli.ads: Likewise.
	* libgnat/a-csquin.ads: Likewise.
	* libgnat/a-cuprqu.adb: Likewise.
	* libgnat/a-cuprqu.ads: Likewise.
	* libgnat/a-cusyqu.adb: Likewise.
	* libgnat/a-cusyqu.ads: Likewise.
	* libgnat/a-cwila1.ads: Likewise.
	* libgnat/a-cwila9.ads: Likewise.
	* libgnat/a-decima.adb: Likewise.
	* libgnat/a-decima.ads: Likewise.
	* libgnat/a-decima__128.ads: Likewise.
	* libgnat/a-dhfina.adb: Likewise.
	* libgnat/a-dhfina.ads: Likewise.
	* libgnat/a-diocst.adb: Likewise.
	* libgnat/a-diocst.ads: Likewise.
	* libgnat/a-direct.adb: Likewise.
	* libgnat/a-direct.ads: Likewise.
	* libgnat/a-direio.adb: Likewise.
	* libgnat/a-direio.ads: Likewise.
	* libgnat/a-dirval.adb: Likewise.
	* libgnat/a-dirval.ads: Likewise.
	* libgnat/a-dirval__mingw.adb: Likewise.
	* libgnat/a-einuoc.adb: Likewise.
	* libgnat/a-einuoc.ads: Likewise.
	* libgnat/a-elchha.adb: Likewise.
	* libgnat/a-elchha.ads: Likewise.
	* libgnat/a-elchha__vxworks-ppc-full.adb: Likewise.
	* libgnat/a-envvar.adb: Likewise.
	* libgnat/a-excach.adb: Likewise.
	* libgnat/a-except.adb: Likewise.
	* libgnat/a-except.ads: Likewise.
	* libgnat/a-exctra.adb: Likewise.
	* libgnat/a-exctra.ads: Likewise.
	* libgnat/a-exexda.adb: Likewise.
	* libgnat/a-exexpr.adb: Likewise.
	* libgnat/a-exextr.adb: Likewise.
	* libgnat/a-exstat.adb: Likewise.
	* libgnat/a-finali.adb: Likewise.
	* libgnat/a-finali.ads: Likewise.
	* libgnat/a-locale.adb: Likewise.
	* libgnat/a-locale.ads: Likewise.
	* libgnat/a-nagefl.ads: Likewise.
	* libgnat/a-naliop.ads: Likewise.
	* libgnat/a-naliop__nolibm.ads: Likewise.
	* libgnat/a-nallfl.ads: Likewise.
	* libgnat/a-nallfl__wraplf.ads: Likewise.
	* libgnat/a-nalofl.ads: Likewise.
	* libgnat/a-nashfl.ads: Likewise.
	* libgnat/a-nashfl__wraplf.ads: Likewise.
	* libgnat/a-nbnbin.adb: Likewise.
	* libgnat/a-nbnbin__gmp.adb: Likewise.
	* libgnat/a-nbnbre.adb: Likewise.
	* libgnat/a-ngcefu.adb: Likewise.
	* libgnat/a-ngcoar.adb: Likewise.
	* libgnat/a-ngcoty.adb: Likewise.
	* libgnat/a-ngcoty.ads: Likewise.
	* libgnat/a-ngelfu.adb: Likewise.
	* libgnat/a-ngelfu.ads: Likewise.
	* libgnat/a-ngrear.adb: Likewise.
	* libgnat/a-ngrear.ads: Likewise.
	* libgnat/a-nuauco.ads: Likewise.
	* libgnat/a-nuauco__x86.ads: Likewise.
	* libgnat/a-nuaufl.ads: Likewise.
	* libgnat/a-nuaufl__wraplf.ads: Likewise.
	* libgnat/a-nudira.adb: Likewise.
	* libgnat/a-nudira.ads: Likewise.
	* libgnat/a-nuflra.adb: Likewise.
	* libgnat/a-nuflra.ads: Likewise.
	* libgnat/a-numaux.ads: Likewise.
	* libgnat/a-rbtgbk.adb: Likewise.
	* libgnat/a-rbtgbk.ads: Likewise.
	* libgnat/a-rbtgbo.adb: Likewise.
	* libgnat/a-rbtgbo.ads: Likewise.
	* libgnat/a-rbtgso.adb: Likewise.
	* libgnat/a-rbtgso.ads: Likewise.
	* libgnat/a-sbecin.adb: Likewise.
	* libgnat/a-sbecin.ads: Likewise.
	* libgnat/a-sbhcin.adb: Likewise.
	* libgnat/a-sbhcin.ads: Likewise.
	* libgnat/a-sblcin.adb: Likewise.
	* libgnat/a-sblcin.ads: Likewise.
	* libgnat/a-secain.adb: Likewise.
	* libgnat/a-secain.ads: Likewise.
	* libgnat/a-sequio.adb: Likewise.
	* libgnat/a-sequio.ads: Likewise.
	* libgnat/a-sfecin.ads: Likewise.
	* libgnat/a-sfhcin.ads: Likewise.
	* libgnat/a-sflcin.ads: Likewise.
	* libgnat/a-shcain.adb: Likewise.
	* libgnat/a-shcain.ads: Likewise.
	* libgnat/a-siocst.adb: Likewise.
	* libgnat/a-siocst.ads: Likewise.
	* libgnat/a-slcain.adb: Likewise.
	* libgnat/a-slcain.ads: Likewise.
	* libgnat/a-ssicst.adb: Likewise.
	* libgnat/a-ssicst.ads: Likewise.
	* libgnat/a-stboha.adb: Likewise.
	* libgnat/a-stmaco.ads: Likewise.
	* libgnat/a-stobbu.adb: Likewise.
	* libgnat/a-stobbu.ads: Likewise.
	* libgnat/a-stobfi.adb: Likewise.
	* libgnat/a-stobfi.ads: Likewise.
	* libgnat/a-storio.adb: Likewise.
	* libgnat/a-stoubu.adb: Likewise.
	* libgnat/a-stoubu.ads: Likewise.
	* libgnat/a-stoufi.adb: Likewise.
	* libgnat/a-stoufi.ads: Likewise.
	* libgnat/a-stoufo.adb: Likewise.
	* libgnat/a-stoufo.ads: Likewise.
	* libgnat/a-stouut.adb: Likewise.
	* libgnat/a-stouut.ads: Likewise.
	* libgnat/a-strbou.adb: Likewise.
	* libgnat/a-strbou.ads: Likewise.
	* libgnat/a-stream.adb: Likewise.
	* libgnat/a-stream.ads: Likewise.
	* libgnat/a-strfix.adb: Likewise.
	* libgnat/a-strhas.adb: Likewise.
	* libgnat/a-strmap.adb: Likewise.
	* libgnat/a-strmap.ads: Likewise.
	* libgnat/a-strsea.adb: Likewise.
	* libgnat/a-strsea.ads: Likewise.
	* libgnat/a-strsto.ads: Likewise.
	* libgnat/a-strsup.adb: Likewise.
	* libgnat/a-strsup.ads: Likewise.
	* libgnat/a-strunb.adb: Likewise.
	* libgnat/a-strunb.ads: Likewise.
	* libgnat/a-strunb__shared.adb: Likewise.
	* libgnat/a-strunb__shared.ads: Likewise.
	* libgnat/a-ststbo.adb: Likewise.
	* libgnat/a-ststbo.ads: Likewise.
	* libgnat/a-ststio.adb: Likewise.
	* libgnat/a-ststio.ads: Likewise.
	* libgnat/a-ststun.adb: Likewise.
	* libgnat/a-ststun.ads: Likewise.
	* libgnat/a-stteou.ads: Likewise.
	* libgnat/a-stunau.adb: Likewise.
	* libgnat/a-stunau.ads: Likewise.
	* libgnat/a-stunau__shared.adb: Likewise.
	* libgnat/a-stunha.adb: Likewise.
	* libgnat/a-stuten.adb: Likewise.
	* libgnat/a-stwibo.adb: Likewise.
	* libgnat/a-stwibo.ads: Likewise.
	* libgnat/a-stwifi.adb: Likewise.
	* libgnat/a-stwiha.adb: Likewise.
	* libgnat/a-stwima.adb: Likewise.
	* libgnat/a-stwima.ads: Likewise.
	* libgnat/a-stwise.adb: Likewise.
	* libgnat/a-stwise.ads: Likewise.
	* libgnat/a-stwisu.adb: Likewise.
	* libgnat/a-stwisu.ads: Likewise.
	* libgnat/a-stwiun.adb: Likewise.
	* libgnat/a-stwiun.ads: Likewise.
	* libgnat/a-stwiun__shared.adb: Likewise.
	* libgnat/a-stwiun__shared.ads: Likewise.
	* libgnat/a-stzbou.adb: Likewise.
	* libgnat/a-stzbou.ads: Likewise.
	* libgnat/a-stzfix.adb: Likewise.
	* libgnat/a-stzhas.adb: Likewise.
	* libgnat/a-stzmap.adb: Likewise.
	* libgnat/a-stzmap.ads: Likewise.
	* libgnat/a-stzsea.adb: Likewise.
	* libgnat/a-stzsea.ads: Likewise.
	* libgnat/a-stzsup.adb: Likewise.
	* libgnat/a-stzsup.ads: Likewise.
	* libgnat/a-stzunb.adb: Likewise.
	* libgnat/a-stzunb.ads: Likewise.
	* libgnat/a-stzunb__shared.adb: Likewise.
	* libgnat/a-stzunb__shared.ads: Likewise.
	* libgnat/a-suecin.adb: Likewise.
	* libgnat/a-suecin.ads: Likewise.
	* libgnat/a-suenco.adb: Likewise.
	* libgnat/a-suenst.adb: Likewise.
	* libgnat/a-suewst.adb: Likewise.
	* libgnat/a-suezst.adb: Likewise.
	* libgnat/a-suhcin.adb: Likewise.
	* libgnat/a-suhcin.ads: Likewise.
	* libgnat/a-sulcin.adb: Likewise.
	* libgnat/a-sulcin.ads: Likewise.
	* libgnat/a-suteio.adb: Likewise.
	* libgnat/a-suteio.ads: Likewise.
	* libgnat/a-suteio__shared.adb: Likewise.
	* libgnat/a-swbwha.adb: Likewise.
	* libgnat/a-swmwco.ads: Likewise.
	* libgnat/a-swunau.adb: Likewise.
	* libgnat/a-swunau.ads: Likewise.
	* libgnat/a-swunau__shared.adb: Likewise.
	* libgnat/a-swuwha.adb: Likewise.
	* libgnat/a-swuwti.adb: Likewise.
	* libgnat/a-swuwti.ads: Likewise.
	* libgnat/a-swuwti__shared.adb: Likewise.
	* libgnat/a-szbzha.adb: Likewise.
	* libgnat/a-szmzco.ads: Likewise.
	* libgnat/a-szunau.adb: Likewise.
	* libgnat/a-szunau.ads: Likewise.
	* libgnat/a-szunau__shared.adb: Likewise.
	* libgnat/a-szuzha.adb: Likewise.
	* libgnat/a-szuzti.adb: Likewise.
	* libgnat/a-szuzti.ads: Likewise.
	* libgnat/a-szuzti__shared.adb: Likewise.
	* libgnat/a-tags.adb: Likewise.
	* libgnat/a-tags.ads: Likewise.
	* libgnat/a-teioed.adb: Likewise.
	* libgnat/a-teioed.ads: Likewise.
	* libgnat/a-textio.adb: Likewise.
	* libgnat/a-textio.ads: Likewise.
	* libgnat/a-tiboio.adb: Likewise.
	* libgnat/a-ticoau.adb: Likewise.
	* libgnat/a-ticoau.ads: Likewise.
	* libgnat/a-ticoio.adb: Likewise.
	* libgnat/a-ticoio.ads: Likewise.
	* libgnat/a-tideau.adb: Likewise.
	* libgnat/a-tideau.ads: Likewise.
	* libgnat/a-tideio.adb: Likewise.
	* libgnat/a-tideio.ads: Likewise.
	* libgnat/a-tideio__128.adb: Likewise.
	* libgnat/a-tienau.adb: Likewise.
	* libgnat/a-tienau.ads: Likewise.
	* libgnat/a-tienio.adb: Likewise.
	* libgnat/a-tifiau.adb: Likewise.
	* libgnat/a-tifiau.ads: Likewise.
	* libgnat/a-tifiio.adb: Likewise.
	* libgnat/a-tifiio__128.adb: Likewise.
	* libgnat/a-tiflau.adb: Likewise.
	* libgnat/a-tiflau.ads: Likewise.
	* libgnat/a-tiflio.adb: Likewise.
	* libgnat/a-tiflio.ads: Likewise.
	* libgnat/a-tigeau.adb: Likewise.
	* libgnat/a-tigeau.ads: Likewise.
	* libgnat/a-tigeli.adb: Likewise.
	* libgnat/a-tiinau.adb: Likewise.
	* libgnat/a-tiinau.ads: Likewise.
	* libgnat/a-tiinio.adb: Likewise.
	* libgnat/a-tiinio.ads: Likewise.
	* libgnat/a-tiinio__128.adb: Likewise.
	* libgnat/a-timoio.adb: Likewise.
	* libgnat/a-timoio.ads: Likewise.
	* libgnat/a-timoio__128.adb: Likewise.
	* libgnat/a-tiocst.adb: Likewise.
	* libgnat/a-tiocst.ads: Likewise.
	* libgnat/a-tirsfi.adb: Likewise.
	* libgnat/a-tirsfi.ads: Likewise.
	* libgnat/a-titest.adb: Likewise.
	* libgnat/a-undesu.adb: Likewise.
	* libgnat/a-wichha.adb: Likewise.
	* libgnat/a-wichun.adb: Likewise.
	* libgnat/a-wichun.ads: Likewise.
	* libgnat/a-witeio.adb: Likewise.
	* libgnat/a-witeio.ads: Likewise.
	* libgnat/a-wrstfi.adb: Likewise.
	* libgnat/a-wrstfi.ads: Likewise.
	* libgnat/a-wtcoau.adb: Likewise.
	* libgnat/a-wtcoau.ads: Likewise.
	* libgnat/a-wtcoio.adb: Likewise.
	* libgnat/a-wtcstr.adb: Likewise.
	* libgnat/a-wtcstr.ads: Likewise.
	* libgnat/a-wtdeau.adb: Likewise.
	* libgnat/a-wtdeau.ads: Likewise.
	* libgnat/a-wtdeio.adb: Likewise.
	* libgnat/a-wtdeio__128.adb: Likewise.
	* libgnat/a-wtedit.adb: Likewise.
	* libgnat/a-wtedit.ads: Likewise.
	* libgnat/a-wtenau.adb: Likewise.
	* libgnat/a-wtenau.ads: Likewise.
	* libgnat/a-wtenio.adb: Likewise.
	* libgnat/a-wtfiau.adb: Likewise.
	* libgnat/a-wtfiau.ads: Likewise.
	* libgnat/a-wtfiio.adb: Likewise.
	* libgnat/a-wtfiio__128.adb: Likewise.
	* libgnat/a-wtflau.adb: Likewise.
	* libgnat/a-wtflau.ads: Likewise.
	* libgnat/a-wtflio.adb: Likewise.
	* libgnat/a-wtgeau.adb: Likewise.
	* libgnat/a-wtgeau.ads: Likewise.
	* libgnat/a-wtinau.adb: Likewise.
	* libgnat/a-wtinau.ads: Likewise.
	* libgnat/a-wtinio.adb: Likewise.
	* libgnat/a-wtinio__128.adb: Likewise.
	* libgnat/a-wtmoio.adb: Likewise.
	* libgnat/a-wtmoio.ads: Likewise.
	* libgnat/a-wtmoio__128.adb: Likewise.
	* libgnat/a-wttest.adb: Likewise.
	* libgnat/a-wwboio.adb: Likewise.
	* libgnat/a-zchhan.adb: Likewise.
	* libgnat/a-zchuni.adb: Likewise.
	* libgnat/a-zchuni.ads: Likewise.
	* libgnat/a-zrstfi.adb: Likewise.
	* libgnat/a-zrstfi.ads: Likewise.
	* libgnat/a-ztcoau.adb: Likewise.
	* libgnat/a-ztcoio.adb: Likewise.
	* libgnat/a-ztcstr.adb: Likewise.
	* libgnat/a-ztcstr.ads: Likewise.
	* libgnat/a-ztdeau.adb: Likewise.
	* libgnat/a-ztdeau.ads: Likewise.
	* libgnat/a-ztdeio.adb: Likewise.
	* libgnat/a-ztdeio__128.adb: Likewise.
	* libgnat/a-ztedit.adb: Likewise.
	* libgnat/a-ztedit.ads: Likewise.
	* libgnat/a-ztenau.adb: Likewise.
	* libgnat/a-ztenau.ads: Likewise.
	* libgnat/a-ztenio.adb: Likewise.
	* libgnat/a-ztexio.adb: Likewise.
	* libgnat/a-ztexio.ads: Likewise.
	* libgnat/a-ztfiau.adb: Likewise.
	* libgnat/a-ztfiau.ads: Likewise.
	* libgnat/a-ztfiio.adb: Likewise.
	* libgnat/a-ztfiio__128.adb: Likewise.
	* libgnat/a-ztflau.adb: Likewise.
	* libgnat/a-ztflau.ads: Likewise.
	* libgnat/a-ztflio.adb: Likewise.
	* libgnat/a-ztgeau.adb: Likewise.
	* libgnat/a-ztgeau.ads: Likewise.
	* libgnat/a-ztinau.adb: Likewise.
	* libgnat/a-ztinau.ads: Likewise.
	* libgnat/a-ztinio.adb: Likewise.
	* libgnat/a-ztinio__128.adb: Likewise.
	* libgnat/a-ztmoio.adb: Likewise.
	* libgnat/a-ztmoio__128.adb: Likewise.
	* libgnat/a-zttest.adb: Likewise.
	* libgnat/a-zzboio.adb: Likewise.
	* libgnat/g-allein.ads: Likewise.
	* libgnat/g-alleve.adb: Likewise.
	* libgnat/g-alleve.ads: Likewise.
	* libgnat/g-alleve__hard.adb: Likewise.
	* libgnat/g-alleve__hard.ads: Likewise.
	* libgnat/g-altcon.adb: Likewise.
	* libgnat/g-altcon.ads: Likewise.
	* libgnat/g-altive.ads: Likewise.
	* libgnat/g-alveop.adb: Likewise.
	* libgnat/g-alveop.ads: Likewise.
	* libgnat/g-alvety.ads: Likewise.
	* libgnat/g-alvevi.ads: Likewise.
	* libgnat/g-arrspl.adb: Likewise.
	* libgnat/g-arrspl.ads: Likewise.
	* libgnat/g-awk.adb: Likewise.
	* libgnat/g-awk.ads: Likewise.
	* libgnat/g-binenv.adb: Likewise.
	* libgnat/g-binenv.ads: Likewise.
	* libgnat/g-brapre.ads: Likewise.
	* libgnat/g-bubsor.adb: Likewise.
	* libgnat/g-bubsor.ads: Likewise.
	* libgnat/g-busora.adb: Likewise.
	* libgnat/g-busora.ads: Likewise.
	* libgnat/g-busorg.adb: Likewise.
	* libgnat/g-busorg.ads: Likewise.
	* libgnat/g-byorma.adb: Likewise.
	* libgnat/g-byorma.ads: Likewise.
	* libgnat/g-bytswa.adb: Likewise.
	* libgnat/g-bytswa.ads: Likewise.
	* libgnat/g-calend.adb: Likewise.
	* libgnat/g-calend.ads: Likewise.
	* libgnat/g-casuti.adb: Likewise.
	* libgnat/g-casuti.ads: Likewise.
	* libgnat/g-catiio.adb: Likewise.
	* libgnat/g-catiio.ads: Likewise.
	* libgnat/g-cgi.adb: Likewise.
	* libgnat/g-cgi.ads: Likewise.
	* libgnat/g-cgicoo.adb: Likewise.
	* libgnat/g-cgicoo.ads: Likewise.
	* libgnat/g-cgideb.adb: Likewise.
	* libgnat/g-cgideb.ads: Likewise.
	* libgnat/g-comlin.adb: Likewise.
	* libgnat/g-comlin.ads: Likewise.
	* libgnat/g-comver.adb: Likewise.
	* libgnat/g-comver.ads: Likewise.
	* libgnat/g-cppexc.adb: Likewise.
	* libgnat/g-cppexc.ads: Likewise.
	* libgnat/g-crc32.adb: Likewise.
	* libgnat/g-crc32.ads: Likewise.
	* libgnat/g-ctrl_c.adb: Likewise.
	* libgnat/g-ctrl_c.ads: Likewise.
	* libgnat/g-curexc.ads: Likewise.
	* libgnat/g-debpoo.adb: Likewise.
	* libgnat/g-debpoo.ads: Likewise.
	* libgnat/g-debuti.adb: Likewise.
	* libgnat/g-debuti.ads: Likewise.
	* libgnat/g-decstr.adb: Likewise.
	* libgnat/g-decstr.ads: Likewise.
	* libgnat/g-deutst.ads: Likewise.
	* libgnat/g-diopit.adb: Likewise.
	* libgnat/g-diopit.ads: Likewise.
	* libgnat/g-dirope.adb: Likewise.
	* libgnat/g-dirope.ads: Likewise.
	* libgnat/g-dynhta.adb: Likewise.
	* libgnat/g-dynhta.ads: Likewise.
	* libgnat/g-dyntab.adb: Likewise.
	* libgnat/g-dyntab.ads: Likewise.
	* libgnat/g-eacodu.adb: Likewise.
	* libgnat/g-encstr.adb: Likewise.
	* libgnat/g-encstr.ads: Likewise.
	* libgnat/g-enutst.ads: Likewise.
	* libgnat/g-excact.adb: Likewise.
	* libgnat/g-excact.ads: Likewise.
	* libgnat/g-except.ads: Likewise.
	* libgnat/g-exctra.adb: Likewise.
	* libgnat/g-exctra.ads: Likewise.
	* libgnat/g-expect.adb: Likewise.
	* libgnat/g-expect.ads: Likewise.
	* libgnat/g-exptty.adb: Likewise.
	* libgnat/g-exptty.ads: Likewise.
	* libgnat/g-flocon.ads: Likewise.
	* libgnat/g-forstr.adb: Likewise.
	* libgnat/g-forstr.ads: Likewise.
	* libgnat/g-graphs.adb: Likewise.
	* libgnat/g-graphs.ads: Likewise.
	* libgnat/g-heasor.adb: Likewise.
	* libgnat/g-heasor.ads: Likewise.
	* libgnat/g-hesora.adb: Likewise.
	* libgnat/g-hesora.ads: Likewise.
	* libgnat/g-hesorg.adb: Likewise.
	* libgnat/g-hesorg.ads: Likewise.
	* libgnat/g-htable.adb: Likewise.
	* libgnat/g-htable.ads: Likewise.
	* libgnat/g-io-put__vxworks.adb: Likewise.
	* libgnat/g-io.adb: Likewise.
	* libgnat/g-io.ads: Likewise.
	* libgnat/g-io_aux.adb: Likewise.
	* libgnat/g-io_aux.ads: Likewise.
	* libgnat/g-lists.adb: Likewise.
	* libgnat/g-lists.ads: Likewise.
	* libgnat/g-locfil.adb: Likewise.
	* libgnat/g-locfil.ads: Likewise.
	* libgnat/g-mbdira.adb: Likewise.
	* libgnat/g-mbdira.ads: Likewise.
	* libgnat/g-mbflra.adb: Likewise.
	* libgnat/g-mbflra.ads: Likewise.
	* libgnat/g-md5.adb: Likewise.
	* libgnat/g-md5.ads: Likewise.
	* libgnat/g-memdum.adb: Likewise.
	* libgnat/g-memdum.ads: Likewise.
	* libgnat/g-moreex.adb: Likewise.
	* libgnat/g-moreex.ads: Likewise.
	* libgnat/g-os_lib.adb: Likewise.
	* libgnat/g-os_lib.ads: Likewise.
	* libgnat/g-pehage.adb: Likewise.
	* libgnat/g-pehage.ads: Likewise.
	* libgnat/g-rannum.adb: Likewise.
	* libgnat/g-rannum.ads: Likewise.
	* libgnat/g-regexp.adb: Likewise.
	* libgnat/g-regexp.ads: Likewise.
	* libgnat/g-regist.adb: Likewise.
	* libgnat/g-regist.ads: Likewise.
	* libgnat/g-regpat.adb: Likewise.
	* libgnat/g-regpat.ads: Likewise.
	* libgnat/g-rewdat.adb: Likewise.
	* libgnat/g-rewdat.ads: Likewise.
	* libgnat/g-sechas.adb: Likewise.
	* libgnat/g-sechas.ads: Likewise.
	* libgnat/g-sehamd.adb: Likewise.
	* libgnat/g-sehamd.ads: Likewise.
	* libgnat/g-sehash.adb: Likewise.
	* libgnat/g-sehash.ads: Likewise.
	* libgnat/g-sercom.adb: Likewise.
	* libgnat/g-sercom.ads: Likewise.
	* libgnat/g-sercom__linux.adb: Likewise.
	* libgnat/g-sercom__mingw.adb: Likewise.
	* libgnat/g-sestin.ads: Likewise.
	* libgnat/g-sets.adb: Likewise.
	* libgnat/g-sets.ads: Likewise.
	* libgnat/g-sha1.adb: Likewise.
	* libgnat/g-sha1.ads: Likewise.
	* libgnat/g-sha224.ads: Likewise.
	* libgnat/g-sha256.ads: Likewise.
	* libgnat/g-sha384.ads: Likewise.
	* libgnat/g-sha512.ads: Likewise.
	* libgnat/g-shsh32.adb: Likewise.
	* libgnat/g-shsh32.ads: Likewise.
	* libgnat/g-shsh64.adb: Likewise.
	* libgnat/g-shsh64.ads: Likewise.
	* libgnat/g-shshco.adb: Likewise.
	* libgnat/g-shshco.ads: Likewise.
	* libgnat/g-soccon.ads: Likewise.
	* libgnat/g-socket.adb: Likewise.
	* libgnat/g-socket.ads: Likewise.
	* libgnat/g-socket__dummy.adb: Likewise.
	* libgnat/g-socket__dummy.ads: Likewise.
	* libgnat/g-socpol.adb: Likewise.
	* libgnat/g-socpol.ads: Likewise.
	* libgnat/g-socpol__dummy.adb: Likewise.
	* libgnat/g-socpol__dummy.ads: Likewise.
	* libgnat/g-socthi.adb: Likewise.
	* libgnat/g-socthi.ads: Likewise.
	* libgnat/g-socthi__dummy.adb: Likewise.
	* libgnat/g-socthi__dummy.ads: Likewise.
	* libgnat/g-socthi__mingw.adb: Likewise.
	* libgnat/g-socthi__mingw.ads: Likewise.
	* libgnat/g-socthi__vxworks.adb: Likewise.
	* libgnat/g-socthi__vxworks.ads: Likewise.
	* libgnat/g-soliop.ads: Likewise.
	* libgnat/g-soliop__lynxos.ads: Likewise.
	* libgnat/g-soliop__mingw.ads: Likewise.
	* libgnat/g-soliop__qnx.ads: Likewise.
	* libgnat/g-soliop__solaris.ads: Likewise.
	* libgnat/g-sopowa.adb: Likewise.
	* libgnat/g-sopowa__mingw.adb: Likewise.
	* libgnat/g-sopowa__posix.adb: Likewise.
	* libgnat/g-sothco.adb: Likewise.
	* libgnat/g-sothco.ads: Likewise.
	* libgnat/g-sothco__dummy.adb: Likewise.
	* libgnat/g-sothco__dummy.ads: Likewise.
	* libgnat/g-souinf.ads: Likewise.
	* libgnat/g-spchge.adb: Likewise.
	* libgnat/g-spchge.ads: Likewise.
	* libgnat/g-speche.adb: Likewise.
	* libgnat/g-speche.ads: Likewise.
	* libgnat/g-spipat.adb: Likewise.
	* libgnat/g-spipat.ads: Likewise.
	* libgnat/g-spitbo.adb: Likewise.
	* libgnat/g-spitbo.ads: Likewise.
	* libgnat/g-spogwa.adb: Likewise.
	* libgnat/g-spogwa.ads: Likewise.
	* libgnat/g-sptabo.ads: Likewise.
	* libgnat/g-sptain.ads: Likewise.
	* libgnat/g-sptavs.ads: Likewise.
	* libgnat/g-sse.ads: Likewise.
	* libgnat/g-ssvety.ads: Likewise.
	* libgnat/g-sthcso.adb: Likewise.
	* libgnat/g-stheme.adb: Likewise.
	* libgnat/g-strhas.ads: Likewise.
	* libgnat/g-string.adb: Likewise.
	* libgnat/g-string.ads: Likewise.
	* libgnat/g-strspl.ads: Likewise.
	* libgnat/g-stseme.adb: Likewise.
	* libgnat/g-stsifd__sockets.adb: Likewise.
	* libgnat/g-table.adb: Likewise.
	* libgnat/g-table.ads: Likewise.
	* libgnat/g-tasloc.adb: Likewise.
	* libgnat/g-tasloc.ads: Likewise.
	* libgnat/g-timsta.adb: Likewise.
	* libgnat/g-timsta.ads: Likewise.
	* libgnat/g-traceb.adb: Likewise.
	* libgnat/g-traceb.ads: Likewise.
	* libgnat/g-trasym.adb: Likewise.
	* libgnat/g-trasym.ads: Likewise.
	* libgnat/g-tty.adb: Likewise.
	* libgnat/g-tty.ads: Likewise.
	* libgnat/g-u3spch.adb: Likewise.
	* libgnat/g-u3spch.ads: Likewise.
	* libgnat/g-utf_32.adb: Likewise.
	* libgnat/g-utf_32.ads: Likewise.
	* libgnat/g-wispch.adb: Likewise.
	* libgnat/g-wispch.ads: Likewise.
	* libgnat/g-wistsp.ads: Likewise.
	* libgnat/g-zspche.adb: Likewise.
	* libgnat/g-zspche.ads: Likewise.
	* libgnat/g-zstspl.ads: Likewise.
	* libgnat/gnat.ads: Likewise.
	* libgnat/i-c.adb: Likewise.
	* libgnat/i-cexten.ads: Likewise.
	* libgnat/i-cexten__128.ads: Likewise.
	* libgnat/i-cobol.adb: Likewise.
	* libgnat/i-cobol.ads: Likewise.
	* libgnat/i-cpoint.adb: Likewise.
	* libgnat/i-cpoint.ads: Likewise.
	* libgnat/i-cstrea.adb: Likewise.
	* libgnat/i-cstrea.ads: Likewise.
	* libgnat/i-cstrin.adb: Likewise.
	* libgnat/i-cstrin.ads: Likewise.
	* libgnat/i-fortra.adb: Likewise.
	* libgnat/i-pacdec.adb: Likewise.
	* libgnat/i-pacdec.ads: Likewise.
	* libgnat/i-vxwoio.adb: Likewise.
	* libgnat/i-vxwoio.ads: Likewise.
	* libgnat/i-vxwork.ads: Likewise.
	* libgnat/i-vxwork__x86.ads: Likewise.
	* libgnat/interfac.ads: Likewise.
	* libgnat/interfac__2020.ads: Likewise.
	* libgnat/memtrack.adb: Likewise.
	* libgnat/s-addima.adb: Likewise.
	* libgnat/s-addima.ads: Likewise.
	* libgnat/s-addope.adb: Likewise.
	* libgnat/s-addope.ads: Likewise.
	* libgnat/s-aoinar.adb: Likewise.
	* libgnat/s-aoinar.ads: Likewise.
	* libgnat/s-aomoar.adb: Likewise.
	* libgnat/s-aomoar.ads: Likewise.
	* libgnat/s-aotase.adb: Likewise.
	* libgnat/s-aotase.ads: Likewise.
	* libgnat/s-aridou.adb: Likewise.
	* libgnat/s-aridou.ads: Likewise.
	* libgnat/s-arit128.adb: Likewise.
	* libgnat/s-arit128.ads: Likewise.
	* libgnat/s-arit32.adb: Likewise.
	* libgnat/s-arit32.ads: Likewise.
	* libgnat/s-arit64.adb: Likewise.
	* libgnat/s-arit64.ads: Likewise.
	* libgnat/s-assert.adb: Likewise.
	* libgnat/s-assert.ads: Likewise.
	* libgnat/s-atacco.adb: Likewise.
	* libgnat/s-atacco.ads: Likewise.
	* libgnat/s-atocou.adb: Likewise.
	* libgnat/s-atocou.ads: Likewise.
	* libgnat/s-atocou__builtin.adb: Likewise.
	* libgnat/s-atocou__x86.adb: Likewise.
	* libgnat/s-atoope.ads: Likewise.
	* libgnat/s-atopex.adb: Likewise.
	* libgnat/s-atopex.ads: Likewise.
	* libgnat/s-atopri.adb: Likewise.
	* libgnat/s-atopri.ads: Likewise.
	* libgnat/s-auxdec.adb: Likewise.
	* libgnat/s-auxdec.ads: Likewise.
	* libgnat/s-bignum.adb: Likewise.
	* libgnat/s-bignum.ads: Likewise.
	* libgnat/s-bitfie.ads: Likewise.
	* libgnat/s-bitops.adb: Likewise.
	* libgnat/s-bitops.ads: Likewise.
	* libgnat/s-bituti.adb: Likewise.
	* libgnat/s-bituti.ads: Likewise.
	* libgnat/s-boarop.ads: Likewise.
	* libgnat/s-boustr.adb: Likewise.
	* libgnat/s-boustr.ads: Likewise.
	* libgnat/s-bytswa.ads: Likewise.
	* libgnat/s-carsi8.adb: Likewise.
	* libgnat/s-carsi8.ads: Likewise.
	* libgnat/s-carun8.adb: Likewise.
	* libgnat/s-carun8.ads: Likewise.
	* libgnat/s-casi128.adb: Likewise.
	* libgnat/s-casi128.ads: Likewise.
	* libgnat/s-casi16.adb: Likewise.
	* libgnat/s-casi16.ads: Likewise.
	* libgnat/s-casi32.adb: Likewise.
	* libgnat/s-casi32.ads: Likewise.
	* libgnat/s-casi64.adb: Likewise.
	* libgnat/s-casi64.ads: Likewise.
	* libgnat/s-casuti.adb: Likewise.
	* libgnat/s-casuti.ads: Likewise.
	* libgnat/s-caun128.adb: Likewise.
	* libgnat/s-caun128.ads: Likewise.
	* libgnat/s-caun16.adb: Likewise.
	* libgnat/s-caun16.ads: Likewise.
	* libgnat/s-caun32.adb: Likewise.
	* libgnat/s-caun32.ads: Likewise.
	* libgnat/s-caun64.adb: Likewise.
	* libgnat/s-caun64.ads: Likewise.
	* libgnat/s-chepoo.ads: Likewise.
	* libgnat/s-commun.adb: Likewise.
	* libgnat/s-commun.ads: Likewise.
	* libgnat/s-conca2.adb: Likewise.
	* libgnat/s-conca2.ads: Likewise.
	* libgnat/s-conca3.adb: Likewise.
	* libgnat/s-conca3.ads: Likewise.
	* libgnat/s-conca4.adb: Likewise.
	* libgnat/s-conca4.ads: Likewise.
	* libgnat/s-conca5.adb: Likewise.
	* libgnat/s-conca5.ads: Likewise.
	* libgnat/s-conca6.adb: Likewise.
	* libgnat/s-conca6.ads: Likewise.
	* libgnat/s-conca7.adb: Likewise.
	* libgnat/s-conca7.ads: Likewise.
	* libgnat/s-conca8.adb: Likewise.
	* libgnat/s-conca8.ads: Likewise.
	* libgnat/s-conca9.adb: Likewise.
	* libgnat/s-conca9.ads: Likewise.
	* libgnat/s-crc32.adb: Likewise.
	* libgnat/s-crc32.ads: Likewise.
	* libgnat/s-crtl.ads: Likewise.
	* libgnat/s-dfmkio.ads: Likewise.
	* libgnat/s-dfmopr.ads: Likewise.
	* libgnat/s-dgmgop.ads: Likewise.
	* libgnat/s-diflio.adb: Likewise.
	* libgnat/s-diflio.ads: Likewise.
	* libgnat/s-diflmk.ads: Likewise.
	* libgnat/s-digemk.ads: Likewise.
	* libgnat/s-diinio.adb: Likewise.
	* libgnat/s-diinio.ads: Likewise.
	* libgnat/s-dilomk.ads: Likewise.
	* libgnat/s-dim.ads: Likewise.
	* libgnat/s-dimkio.ads: Likewise.
	* libgnat/s-dimmks.ads: Likewise.
	* libgnat/s-direio.adb: Likewise.
	* libgnat/s-direio.ads: Likewise.
	* libgnat/s-dlmkio.ads: Likewise.
	* libgnat/s-dlmopr.ads: Likewise.
	* libgnat/s-dmotpr.ads: Likewise.
	* libgnat/s-dsaser.ads: Likewise.
	* libgnat/s-dwalin.adb: Likewise.
	* libgnat/s-dwalin.ads: Likewise.
	* libgnat/s-elaall.adb: Likewise.
	* libgnat/s-elaall.ads: Likewise.
	* libgnat/s-excdeb.adb: Likewise.
	* libgnat/s-excdeb.ads: Likewise.
	* libgnat/s-except.adb: Likewise.
	* libgnat/s-except.ads: Likewise.
	* libgnat/s-excmac__arm.adb: Likewise.
	* libgnat/s-excmac__arm.ads: Likewise.
	* libgnat/s-excmac__gcc.adb: Likewise.
	* libgnat/s-excmac__gcc.ads: Likewise.
	* libgnat/s-exctab.adb: Likewise.
	* libgnat/s-exctab.ads: Likewise.
	* libgnat/s-exctra.adb: Likewise.
	* libgnat/s-exctra.ads: Likewise.
	* libgnat/s-exnint.adb: Likewise.
	* libgnat/s-exnint.ads: Likewise.
	* libgnat/s-exnllf.adb: Likewise.
	* libgnat/s-exnllf.ads: Likewise.
	* libgnat/s-exnlli.adb: Likewise.
	* libgnat/s-exnlli.ads: Likewise.
	* libgnat/s-exnllli.ads: Likewise.
	* libgnat/s-expint.adb: Likewise.
	* libgnat/s-expint.ads: Likewise.
	* libgnat/s-explli.adb: Likewise.
	* libgnat/s-explli.ads: Likewise.
	* libgnat/s-expllli.ads: Likewise.
	* libgnat/s-explllu.ads: Likewise.
	* libgnat/s-expllu.adb: Likewise.
	* libgnat/s-expllu.ads: Likewise.
	* libgnat/s-expmod.adb: Likewise.
	* libgnat/s-expmod.ads: Likewise.
	* libgnat/s-exponn.adb: Likewise.
	* libgnat/s-exponn.ads: Likewise.
	* libgnat/s-expont.adb: Likewise.
	* libgnat/s-expont.ads: Likewise.
	* libgnat/s-exponu.adb: Likewise.
	* libgnat/s-exponu.ads: Likewise.
	* libgnat/s-expuns.adb: Likewise.
	* libgnat/s-expuns.ads: Likewise.
	* libgnat/s-fatflt.ads: Likewise.
	* libgnat/s-fatgen.adb: Likewise.
	* libgnat/s-fatgen.ads: Likewise.
	* libgnat/s-fatlfl.ads: Likewise.
	* libgnat/s-fatllf.ads: Likewise.
	* libgnat/s-ficobl.ads: Likewise.
	* libgnat/s-filatt.ads: Likewise.
	* libgnat/s-fileio.adb: Likewise.
	* libgnat/s-fileio.ads: Likewise.
	* libgnat/s-finmas.adb: Likewise.
	* libgnat/s-finmas.ads: Likewise.
	* libgnat/s-finroo.adb: Likewise.
	* libgnat/s-finroo.ads: Likewise.
	* libgnat/s-flocon.adb: Likewise.
	* libgnat/s-flocon.ads: Likewise.
	* libgnat/s-flocon__none.adb: Likewise.
	* libgnat/s-fode128.ads: Likewise.
	* libgnat/s-fode32.ads: Likewise.
	* libgnat/s-fode64.ads: Likewise.
	* libgnat/s-fofi128.ads: Likewise.
	* libgnat/s-fofi32.ads: Likewise.
	* libgnat/s-fofi64.ads: Likewise.
	* libgnat/s-fore_d.adb: Likewise.
	* libgnat/s-fore_d.ads: Likewise.
	* libgnat/s-fore_f.adb: Likewise.
	* libgnat/s-fore_f.ads: Likewise.
	* libgnat/s-forrea.adb: Likewise.
	* libgnat/s-forrea.ads: Likewise.
	* libgnat/s-gearop.adb: Likewise.
	* libgnat/s-gearop.ads: Likewise.
	* libgnat/s-genbig.adb: Likewise.
	* libgnat/s-genbig.ads: Likewise.
	* libgnat/s-geveop.adb: Likewise.
	* libgnat/s-geveop.ads: Likewise.
	* libgnat/s-gloloc.adb: Likewise.
	* libgnat/s-gloloc.ads: Likewise.
	* libgnat/s-gloloc__mingw.adb: Likewise.
	* libgnat/s-htable.adb: Likewise.
	* libgnat/s-htable.ads: Likewise.
	* libgnat/s-imageb.adb: Likewise.
	* libgnat/s-imageb.ads: Likewise.
	* libgnat/s-imaged.adb: Likewise.
	* libgnat/s-imaged.ads: Likewise.
	* libgnat/s-imagef.adb: Likewise.
	* libgnat/s-imagef.ads: Likewise.
	* libgnat/s-imagei.adb: Likewise.
	* libgnat/s-imagei.ads: Likewise.
	* libgnat/s-imageu.adb: Likewise.
	* libgnat/s-imageu.ads: Likewise.
	* libgnat/s-imagew.adb: Likewise.
	* libgnat/s-imagew.ads: Likewise.
	* libgnat/s-imde128.ads: Likewise.
	* libgnat/s-imde32.ads: Likewise.
	* libgnat/s-imde64.ads: Likewise.
	* libgnat/s-imenne.adb: Likewise.
	* libgnat/s-imenne.ads: Likewise.
	* libgnat/s-imfi128.ads: Likewise.
	* libgnat/s-imfi32.ads: Likewise.
	* libgnat/s-imfi64.ads: Likewise.
	* libgnat/s-imgbiu.adb: Likewise.
	* libgnat/s-imgbiu.ads: Likewise.
	* libgnat/s-imgboo.adb: Likewise.
	* libgnat/s-imgboo.ads: Likewise.
	* libgnat/s-imgcha.adb: Likewise.
	* libgnat/s-imgcha.ads: Likewise.
	* libgnat/s-imgenu.adb: Likewise.
	* libgnat/s-imgenu.ads: Likewise.
	* libgnat/s-imgint.adb: Likewise.
	* libgnat/s-imgint.ads: Likewise.
	* libgnat/s-imgllb.adb: Likewise.
	* libgnat/s-imgllb.ads: Likewise.
	* libgnat/s-imglli.adb: Likewise.
	* libgnat/s-imglli.ads: Likewise.
	* libgnat/s-imglllb.ads: Likewise.
	* libgnat/s-imgllli.ads: Likewise.
	* libgnat/s-imglllu.ads: Likewise.
	* libgnat/s-imglllw.ads: Likewise.
	* libgnat/s-imgllu.adb: Likewise.
	* libgnat/s-imgllu.ads: Likewise.
	* libgnat/s-imgllw.adb: Likewise.
	* libgnat/s-imgllw.ads: Likewise.
	* libgnat/s-imgrea.adb: Likewise.
	* libgnat/s-imgrea.ads: Likewise.
	* libgnat/s-imguns.adb: Likewise.
	* libgnat/s-imguns.ads: Likewise.
	* libgnat/s-imguti.adb: Likewise.
	* libgnat/s-imguti.ads: Likewise.
	* libgnat/s-imgwch.adb: Likewise.
	* libgnat/s-imgwch.ads: Likewise.
	* libgnat/s-imgwiu.adb: Likewise.
	* libgnat/s-imgwiu.ads: Likewise.
	* libgnat/s-io.adb: Likewise.
	* libgnat/s-io.ads: Likewise.
	* libgnat/s-llflex.ads: Likewise.
	* libgnat/s-maccod.ads: Likewise.
	* libgnat/s-mantis.adb: Likewise.
	* libgnat/s-mantis.ads: Likewise.
	* libgnat/s-mastop.adb: Likewise.
	* libgnat/s-mastop.ads: Likewise.
	* libgnat/s-memcop.ads: Likewise.
	* libgnat/s-memory.adb: Likewise.
	* libgnat/s-memory.ads: Likewise.
	* libgnat/s-mmap.adb: Likewise.
	* libgnat/s-mmap.ads: Likewise.
	* libgnat/s-mmauni__long.ads: Likewise.
	* libgnat/s-mmosin__mingw.adb: Likewise.
	* libgnat/s-mmosin__mingw.ads: Likewise.
	* libgnat/s-mmosin__unix.adb: Likewise.
	* libgnat/s-mmosin__unix.ads: Likewise.
	* libgnat/s-multip.adb: Likewise.
	* libgnat/s-objrea.adb: Likewise.
	* libgnat/s-objrea.ads: Likewise.
	* libgnat/s-optide.adb: Likewise.
	* libgnat/s-os_lib.adb: Likewise.
	* libgnat/s-os_lib.ads: Likewise.
	* libgnat/s-osprim.ads: Likewise.
	* libgnat/s-osprim__darwin.adb: Likewise.
	* libgnat/s-osprim__lynxos.ads: Likewise.
	* libgnat/s-osprim__mingw.adb: Likewise.
	* libgnat/s-osprim__posix.adb: Likewise.
	* libgnat/s-osprim__posix2008.adb: Likewise.
	* libgnat/s-osprim__rtems.adb: Likewise.
	* libgnat/s-osprim__solaris.adb: Likewise.
	* libgnat/s-osprim__unix.adb: Likewise.
	* libgnat/s-osprim__vxworks.adb: Likewise.
	* libgnat/s-osprim__x32.adb: Likewise.
	* libgnat/s-osvers__vxworks-653.ads: Likewise.
	* libgnat/s-pack03.adb: Likewise.
	* libgnat/s-pack03.ads: Likewise.
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	* libgnat/s-pack05.ads: Likewise.
	* libgnat/s-pack06.adb: Likewise.
	* libgnat/s-pack06.ads: Likewise.
	* libgnat/s-pack07.adb: Likewise.
	* libgnat/s-pack07.ads: Likewise.
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	* libgnat/s-pack09.ads: Likewise.
	* libgnat/s-pack10.adb: Likewise.
	* libgnat/s-pack10.ads: Likewise.
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	* libgnat/s-pack100.ads: Likewise.
	* libgnat/s-pack101.adb: Likewise.
	* libgnat/s-pack101.ads: Likewise.
	* libgnat/s-pack102.adb: Likewise.
	* libgnat/s-pack102.ads: Likewise.
	* libgnat/s-pack103.adb: Likewise.
	* libgnat/s-pack103.ads: Likewise.
	* libgnat/s-pack104.adb: Likewise.
	* libgnat/s-pack104.ads: Likewise.
	* libgnat/s-pack105.adb: Likewise.
	* libgnat/s-pack105.ads: Likewise.
	* libgnat/s-pack106.adb: Likewise.
	* libgnat/s-pack106.ads: Likewise.
	* libgnat/s-pack107.adb: Likewise.
	* libgnat/s-pack107.ads: Likewise.
	* libgnat/s-pack108.adb: Likewise.
	* libgnat/s-pack108.ads: Likewise.
	* libgnat/s-pack109.adb: Likewise.
	* libgnat/s-pack109.ads: Likewise.
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	* libgnat/s-pack11.ads: Likewise.
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	* libgnat/s-pack110.ads: Likewise.
	* libgnat/s-pack111.adb: Likewise.
	* libgnat/s-pack111.ads: Likewise.
	* libgnat/s-pack112.adb: Likewise.
	* libgnat/s-pack112.ads: Likewise.
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	* libgnat/s-pack113.ads: Likewise.
	* libgnat/s-pack114.adb: Likewise.
	* libgnat/s-pack114.ads: Likewise.
	* libgnat/s-pack115.adb: Likewise.
	* libgnat/s-pack115.ads: Likewise.
	* libgnat/s-pack116.adb: Likewise.
	* libgnat/s-pack116.ads: Likewise.
	* libgnat/s-pack117.adb: Likewise.
	* libgnat/s-pack117.ads: Likewise.
	* libgnat/s-pack118.adb: Likewise.
	* libgnat/s-pack118.ads: Likewise.
	* libgnat/s-pack119.adb: Likewise.
	* libgnat/s-pack119.ads: Likewise.
	* libgnat/s-pack12.adb: Likewise.
	* libgnat/s-pack12.ads: Likewise.
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	* libgnat/s-pack120.ads: Likewise.
	* libgnat/s-pack121.adb: Likewise.
	* libgnat/s-pack121.ads: Likewise.
	* libgnat/s-pack122.adb: Likewise.
	* libgnat/s-pack122.ads: Likewise.
	* libgnat/s-pack123.adb: Likewise.
	* libgnat/s-pack123.ads: Likewise.
	* libgnat/s-pack124.adb: Likewise.
	* libgnat/s-pack124.ads: Likewise.
	* libgnat/s-pack125.adb: Likewise.
	* libgnat/s-pack125.ads: Likewise.
	* libgnat/s-pack126.adb: Likewise.
	* libgnat/s-pack126.ads: Likewise.
	* libgnat/s-pack127.adb: Likewise.
	* libgnat/s-pack127.ads: Likewise.
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	* libgnat/s-pack13.ads: Likewise.
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	* libgnat/s-pack14.ads: Likewise.
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	* libgnat/s-pack15.ads: Likewise.
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	* libgnat/s-pack17.ads: Likewise.
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	* libgnat/s-pack19.ads: Likewise.
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	* libgnat/s-pack20.ads: Likewise.
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	* libgnat/s-pack21.ads: Likewise.
	* libgnat/s-pack22.adb: Likewise.
	* libgnat/s-pack22.ads: Likewise.
	* libgnat/s-pack23.adb: Likewise.
	* libgnat/s-pack23.ads: Likewise.
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	* libgnat/s-pack24.ads: Likewise.
	* libgnat/s-pack25.adb: Likewise.
	* libgnat/s-pack25.ads: Likewise.
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	* libgnat/s-pack26.ads: Likewise.
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	* libgnat/s-pack27.ads: Likewise.
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	* libgnat/s-pack28.ads: Likewise.
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	* libgnat/s-pack35.ads: Likewise.
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	* libgnat/s-pack36.ads: Likewise.
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	* libgnat/s-pack37.ads: Likewise.
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	* libgnat/s-pack38.ads: Likewise.
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	* libgnat/s-pack39.ads: Likewise.
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	* libgnat/s-pack42.ads: Likewise.
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	* libgnat/s-pack43.ads: Likewise.
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	* libgnat/s-pack44.ads: Likewise.
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	* libgnat/s-pack45.ads: Likewise.
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	* libgnat/s-pack46.ads: Likewise.
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	* libgnat/s-pack47.ads: Likewise.
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	* libgnat/s-pack51.ads: Likewise.
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	* libgnat/s-pack52.ads: Likewise.
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	* libgnat/s-pack53.ads: Likewise.
	* libgnat/s-pack54.adb: Likewise.
	* libgnat/s-pack54.ads: Likewise.
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	* libgnat/s-pack55.ads: Likewise.
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	* libgnat/s-pack56.ads: Likewise.
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	* libgnat/s-pack57.ads: Likewise.
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	* libgnat/s-pack58.ads: Likewise.
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	* libgnat/s-pack59.ads: Likewise.
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	* libgnat/s-pack60.ads: Likewise.
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	* libgnat/s-pack61.ads: Likewise.
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	* libgnat/s-pack62.ads: Likewise.
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	* libgnat/s-pack65.ads: Likewise.
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	* libgnat/s-pack71.ads: Likewise.
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	* libgnat/s-pack72.ads: Likewise.
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	* libgnat/s-pack77.ads: Likewise.
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	* libgnat/s-pack78.ads: Likewise.
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	* libgnat/s-pack79.ads: Likewise.
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	* libgnat/s-pack83.ads: Likewise.
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	* libgnat/s-pack88.ads: Likewise.
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	* libgnat/s-pack93.ads: Likewise.
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	* libgnat/s-pack94.ads: Likewise.
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	* libgnat/s-pack97.ads: Likewise.
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	* libgnat/s-pack98.ads: Likewise.
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	* libgnat/s-stopoo.ads: Likewise.
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	* libgnat/s-stposu.ads: Likewise.
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	* libgnat/s-stratt.ads: Likewise.
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	* libgnat/s-strcom.ads: Likewise.
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	* libgnat/s-strhas.ads: Likewise.
	* libgnat/s-string.adb: Likewise.
	* libgnat/s-string.ads: Likewise.
	* libgnat/s-strops.adb: Likewise.
	* libgnat/s-strops.ads: Likewise.
	* libgnat/s-ststop.adb: Likewise.
	* libgnat/s-ststop.ads: Likewise.
	* libgnat/s-tasloc.adb: Likewise.
	* libgnat/s-tasloc.ads: Likewise.
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	* libgnat/s-traent.ads: Likewise.
	* libgnat/s-trasym.adb: Likewise.
	* libgnat/s-trasym.ads: Likewise.
	* libgnat/s-trasym__dwarf.adb: Likewise.
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	* libgnat/s-tsmona__linux.adb: Likewise.
	* libgnat/s-tsmona__mingw.adb: Likewise.
	* libgnat/s-unstyp.ads: Likewise.
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	* libgnat/s-utf_32.ads: Likewise.
	* libgnat/s-vade128.ads: Likewise.
	* libgnat/s-vade32.ads: Likewise.
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	* libgnat/s-vallli.adb: Likewise.
	* libgnat/s-vallli.ads: Likewise.
	* libgnat/s-valllli.ads: Likewise.
	* libgnat/s-vallllu.ads: Likewise.
	* libgnat/s-valllu.adb: Likewise.
	* libgnat/s-valllu.ads: Likewise.
	* libgnat/s-valrea.adb: Likewise.
	* libgnat/s-valrea.ads: Likewise.
	* libgnat/s-valued.adb: Likewise.
	* libgnat/s-valued.ads: Likewise.
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	* libgnat/s-valuti.adb: Likewise.
	* libgnat/s-valuti.ads: Likewise.
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	* libgnat/s-wchstw.ads: Likewise.
	* libgnat/s-wchwts.adb: Likewise.
	* libgnat/s-wchwts.ads: Likewise.
	* libgnat/s-widboo.adb: Likewise.
	* libgnat/s-widboo.ads: Likewise.
	* libgnat/s-widcha.adb: Likewise.
	* libgnat/s-widcha.ads: Likewise.
	* libgnat/s-widenu.adb: Likewise.
	* libgnat/s-widenu.ads: Likewise.
	* libgnat/s-widint.ads: Likewise.
	* libgnat/s-widlli.adb: Likewise.
	* libgnat/s-widlli.ads: Likewise.
	* libgnat/s-widllli.ads: Likewise.
	* libgnat/s-widlllu.ads: Likewise.
	* libgnat/s-widllu.adb: Likewise.
	* libgnat/s-widllu.ads: Likewise.
	* libgnat/s-widthi.adb: Likewise.
	* libgnat/s-widthi.ads: Likewise.
	* libgnat/s-widthu.adb: Likewise.
	* libgnat/s-widthu.ads: Likewise.
	* libgnat/s-widuns.ads: Likewise.
	* libgnat/s-widwch.adb: Likewise.
	* libgnat/s-widwch.ads: Likewise.
	* libgnat/s-win32.ads: Likewise.
	* libgnat/s-winext.ads: Likewise.
	* libgnat/s-wwdcha.adb: Likewise.
	* libgnat/s-wwdcha.ads: Likewise.
	* libgnat/s-wwdenu.adb: Likewise.
	* libgnat/s-wwdenu.ads: Likewise.
	* libgnat/s-wwdwch.adb: Likewise.
	* libgnat/s-wwdwch.ads: Likewise.
	* libgnat/system-aix.ads: Likewise.
	* libgnat/system-darwin-arm.ads: Likewise.
	* libgnat/system-darwin-ppc.ads: Likewise.
	* libgnat/system-darwin-x86.ads: Likewise.
	* libgnat/system-djgpp.ads: Likewise.
	* libgnat/system-dragonfly-x86_64.ads: Likewise.
	* libgnat/system-freebsd.ads: Likewise.
	* libgnat/system-hpux-ia64.ads: Likewise.
	* libgnat/system-hpux.ads: Likewise.
	* libgnat/system-linux-alpha.ads: Likewise.
	* libgnat/system-linux-arm.ads: Likewise.
	* libgnat/system-linux-hppa.ads: Likewise.
	* libgnat/system-linux-ia64.ads: Likewise.
	* libgnat/system-linux-m68k.ads: Likewise.
	* libgnat/system-linux-mips.ads: Likewise.
	* libgnat/system-linux-ppc.ads: Likewise.
	* libgnat/system-linux-riscv.ads: Likewise.
	* libgnat/system-linux-s390.ads: Likewise.
	* libgnat/system-linux-sh4.ads: Likewise.
	* libgnat/system-linux-sparc.ads: Likewise.
	* libgnat/system-linux-x86.ads: Likewise.
	* libgnat/system-lynxos178-ppc.ads: Likewise.
	* libgnat/system-lynxos178-x86.ads: Likewise.
	* libgnat/system-mingw.ads: Likewise.
	* libgnat/system-qnx-aarch64.ads: Likewise.
	* libgnat/system-rtems.ads: Likewise.
	* libgnat/system-solaris-sparc.ads: Likewise.
	* libgnat/system-solaris-x86.ads: Likewise.
	* libgnat/system-vxworks-arm-rtp-smp.ads: Likewise.
	* libgnat/system-vxworks-arm-rtp.ads: Likewise.
	* libgnat/system-vxworks-arm.ads: Likewise.
	* libgnat/system-vxworks-e500-kernel.ads: Likewise.
	* libgnat/system-vxworks-e500-rtp-smp.ads: Likewise.
	* libgnat/system-vxworks-e500-rtp.ads: Likewise.
	* libgnat/system-vxworks-e500-vthread.ads: Likewise.
	* libgnat/system-vxworks-ppc-kernel.ads: Likewise.
	* libgnat/system-vxworks-ppc-ravenscar.ads: Likewise.
	* libgnat/system-vxworks-ppc-rtp-smp.ads: Likewise.
	* libgnat/system-vxworks-ppc-rtp.ads: Likewise.
	* libgnat/system-vxworks-ppc-vthread.ads: Likewise.
	* libgnat/system-vxworks-ppc.ads: Likewise.
	* libgnat/system-vxworks-x86-kernel.ads: Likewise.
	* libgnat/system-vxworks-x86-rtp-smp.ads: Likewise.
	* libgnat/system-vxworks-x86-rtp.ads: Likewise.
	* libgnat/system-vxworks-x86-vthread.ads: Likewise.
	* libgnat/system-vxworks-x86.ads: Likewise.
	* libgnat/system-vxworks7-aarch64-rtp-smp.ads: Likewise.
	* libgnat/system-vxworks7-aarch64.ads: Likewise.
	* libgnat/system-vxworks7-arm-rtp-smp.ads: Likewise.
	* libgnat/system-vxworks7-arm.ads: Likewise.
	* libgnat/system-vxworks7-e500-kernel.ads: Likewise.
	* libgnat/system-vxworks7-e500-rtp-smp.ads: Likewise.
	* libgnat/system-vxworks7-e500-rtp.ads: Likewise.
	* libgnat/system-vxworks7-ppc-kernel.ads: Likewise.
	* libgnat/system-vxworks7-ppc-rtp-smp.ads: Likewise.
	* libgnat/system-vxworks7-ppc-rtp.ads: Likewise.
	* libgnat/system-vxworks7-ppc64-kernel.ads: Likewise.
	* libgnat/system-vxworks7-ppc64-rtp-smp.ads: Likewise.
	* libgnat/system-vxworks7-x86-kernel.ads: Likewise.
	* libgnat/system-vxworks7-x86-rtp-smp.ads: Likewise.
	* libgnat/system-vxworks7-x86-rtp.ads: Likewise.
	* libgnat/system-vxworks7-x86_64-kernel.ads: Likewise.
	* libgnat/system-vxworks7-x86_64-rtp-smp.ads: Likewise.
	* link.c: Likewise.
	* live.adb: Likewise.
	* live.ads: Likewise.
	* locales.c: Likewise.
	* make.adb: Likewise.
	* make.ads: Likewise.
	* make_util.adb: Likewise.
	* make_util.ads: Likewise.
	* makeusg.adb: Likewise.
	* makeusg.ads: Likewise.
	* mdll-fil.adb: Likewise.
	* mdll-fil.ads: Likewise.
	* mdll-utl.adb: Likewise.
	* mdll-utl.ads: Likewise.
	* mdll.adb: Likewise.
	* mdll.ads: Likewise.
	* mingw32.h: Likewise.
	* mkdir.c: Likewise.
	* namet-sp.adb: Likewise.
	* namet-sp.ads: Likewise.
	* namet.adb: Likewise.
	* namet.ads: Likewise.
	* namet.h: Likewise.
	* nlists.adb: Likewise.
	* nlists.ads: Likewise.
	* nlists.h: Likewise.
	* opt.adb: Likewise.
	* opt.ads: Likewise.
	* osint-b.adb: Likewise.
	* osint-b.ads: Likewise.
	* osint-c.adb: Likewise.
	* osint-c.ads: Likewise.
	* osint-l.adb: Likewise.
	* osint-l.ads: Likewise.
	* osint-m.adb: Likewise.
	* osint-m.ads: Likewise.
	* osint.adb: Likewise.
	* osint.ads: Likewise.
	* output.adb: Likewise.
	* output.ads: Likewise.
	* par-ch10.adb: Likewise.
	* par-ch11.adb: Likewise.
	* par-ch12.adb: Likewise.
	* par-ch13.adb: Likewise.
	* par-ch2.adb: Likewise.
	* par-ch3.adb: Likewise.
	* par-ch4.adb: Likewise.
	* par-ch5.adb: Likewise.
	* par-ch6.adb: Likewise.
	* par-ch7.adb: Likewise.
	* par-ch8.adb: Likewise.
	* par-ch9.adb: Likewise.
	* par-endh.adb: Likewise.
	* par-labl.adb: Likewise.
	* par-load.adb: Likewise.
	* par-prag.adb: Likewise.
	* par-sync.adb: Likewise.
	* par-tchk.adb: Likewise.
	* par-util.adb: Likewise.
	* par.adb: Likewise.
	* par.ads: Likewise.
	* par_sco.adb: Likewise.
	* par_sco.ads: Likewise.
	* pprint.adb: Likewise.
	* pprint.ads: Likewise.
	* prep.adb: Likewise.
	* prep.ads: Likewise.
	* prepcomp.adb: Likewise.
	* prepcomp.ads: Likewise.
	* put_scos.adb: Likewise.
	* put_scos.ads: Likewise.
	* raise-gcc.c: Likewise.
	* raise.c: Likewise.
	* raise.h: Likewise.
	* repinfo-input.adb: Likewise.
	* repinfo-input.ads: Likewise.
	* repinfo.adb: Likewise.
	* repinfo.ads: Likewise.
	* repinfo.h: Likewise.
	* restrict.adb: Likewise.
	* restrict.ads: Likewise.
	* rident.ads: Likewise.
	* rtfinal.c: Likewise.
	* rtinit.c: Likewise.
	* rtsfind.adb: Likewise.
	* rtsfind.ads: Likewise.
	* runtime.h: Likewise.
	* s-oscons-tmplt.c: Likewise.
	* sa_messages.adb: Likewise.
	* sa_messages.ads: Likewise.
	* scans.adb: Likewise.
	* scans.ads: Likewise.
	* scil_ll.adb: Likewise.
	* scil_ll.ads: Likewise.
	* scn.adb: Likewise.
	* scn.ads: Likewise.
	* scng.adb: Likewise.
	* scng.ads: Likewise.
	* scos.adb: Likewise.
	* scos.ads: Likewise.
	* scos.h: Likewise.
	* sdefault.ads: Likewise.
	* seh_init.c: Likewise.
	* sem.adb: Likewise.
	* sem.ads: Likewise.
	* sem_aggr.adb: Likewise.
	* sem_aggr.ads: Likewise.
	* sem_attr.adb: Likewise.
	* sem_attr.ads: Likewise.
	* sem_aux.adb: Likewise.
	* sem_aux.ads: Likewise.
	* sem_case.adb: Likewise.
	* sem_case.ads: Likewise.
	* sem_cat.adb: Likewise.
	* sem_cat.ads: Likewise.
	* sem_ch10.adb: Likewise.
	* sem_ch10.ads: Likewise.
	* sem_ch11.adb: Likewise.
	* sem_ch11.ads: Likewise.
	* sem_ch12.adb: Likewise.
	* sem_ch12.ads: Likewise.
	* sem_ch13.adb: Likewise.
	* sem_ch13.ads: Likewise.
	* sem_ch2.adb: Likewise.
	* sem_ch2.ads: Likewise.
	* sem_ch3.adb: Likewise.
	* sem_ch3.ads: Likewise.
	* sem_ch4.adb: Likewise.
	* sem_ch4.ads: Likewise.
	* sem_ch5.adb: Likewise.
	* sem_ch5.ads: Likewise.
	* sem_ch6.adb: Likewise.
	* sem_ch6.ads: Likewise.
	* sem_ch7.adb: Likewise.
	* sem_ch7.ads: Likewise.
	* sem_ch8.adb: Likewise.
	* sem_ch8.ads: Likewise.
	* sem_ch9.adb: Likewise.
	* sem_ch9.ads: Likewise.
	* sem_dim.adb: Likewise.
	* sem_dim.ads: Likewise.
	* sem_disp.adb: Likewise.
	* sem_disp.ads: Likewise.
	* sem_dist.adb: Likewise.
	* sem_dist.ads: Likewise.
	* sem_elab.adb: Likewise.
	* sem_elab.ads: Likewise.
	* sem_elim.adb: Likewise.
	* sem_elim.ads: Likewise.
	* sem_eval.adb: Likewise.
	* sem_eval.ads: Likewise.
	* sem_intr.adb: Likewise.
	* sem_intr.ads: Likewise.
	* sem_mech.adb: Likewise.
	* sem_mech.ads: Likewise.
	* sem_prag.adb: Likewise.
	* sem_prag.ads: Likewise.
	* sem_res.adb: Likewise.
	* sem_res.ads: Likewise.
	* sem_scil.adb: Likewise.
	* sem_scil.ads: Likewise.
	* sem_smem.adb: Likewise.
	* sem_smem.ads: Likewise.
	* sem_type.adb: Likewise.
	* sem_type.ads: Likewise.
	* sem_util.adb: Likewise.
	* sem_util.ads: Likewise.
	* sem_warn.adb: Likewise.
	* sem_warn.ads: Likewise.
	* set_targ.adb: Likewise.
	* set_targ.ads: Likewise.
	* sfn_scan.adb: Likewise.
	* sfn_scan.ads: Likewise.
	* sigtramp-armdroid.c: Likewise.
	* sigtramp-ios.c: Likewise.
	* sigtramp-qnx.c: Likewise.
	* sigtramp-vxworks.c: Likewise.
	* sigtramp.h: Likewise.
	* sinfo-cn.adb: Likewise.
	* sinfo-cn.ads: Likewise.
	* sinfo.adb: Likewise.
	* sinfo.ads: Likewise.
	* sinput-c.adb: Likewise.
	* sinput-c.ads: Likewise.
	* sinput-d.adb: Likewise.
	* sinput-d.ads: Likewise.
	* sinput-l.adb: Likewise.
	* sinput-l.ads: Likewise.
	* sinput.adb: Likewise.
	* sinput.ads: Likewise.
	* snames.adb-tmpl: Likewise.
	* snames.ads-tmpl: Likewise.
	* socket.c: Likewise.
	* spark_xrefs.adb: Likewise.
	* spark_xrefs.ads: Likewise.
	* sprint.adb: Likewise.
	* sprint.ads: Likewise.
	* stand.ads: Likewise.
	* stringt.adb: Likewise.
	* stringt.ads: Likewise.
	* stringt.h: Likewise.
	* style.adb: Likewise.
	* style.ads: Likewise.
	* styleg.adb: Likewise.
	* styleg.ads: Likewise.
	* stylesw.adb: Likewise.
	* stylesw.ads: Likewise.
	* switch-b.adb: Likewise.
	* switch-b.ads: Likewise.
	* switch-c.adb: Likewise.
	* switch-c.ads: Likewise.
	* switch-m.adb: Likewise.
	* switch-m.ads: Likewise.
	* switch.adb: Likewise.
	* switch.ads: Likewise.
	* sysdep.c: Likewise.
	* table.adb: Likewise.
	* table.ads: Likewise.
	* targext.c: Likewise.
	* targparm.adb: Likewise.
	* targparm.ads: Likewise.
	* tbuild.adb: Likewise.
	* tbuild.ads: Likewise.
	* tempdir.adb: Likewise.
	* tempdir.ads: Likewise.
	* terminals.c: Likewise.
	* tracebak.c: Likewise.
	* treepr.adb: Likewise.
	* treepr.ads: Likewise.
	* ttypes.ads: Likewise.
	* types.adb: Likewise.
	* types.ads: Likewise.
	* types.h: Likewise.
	* uintp.adb: Likewise.
	* uintp.ads: Likewise.
	* uintp.h: Likewise.
	* uname.adb: Likewise.
	* uname.ads: Likewise.
	* urealp.adb: Likewise.
	* urealp.ads: Likewise.
	* urealp.h: Likewise.
	* usage.adb: Likewise.
	* usage.ads: Likewise.
	* validsw.adb: Likewise.
	* validsw.ads: Likewise.
	* vast.adb: Likewise.
	* vast.ads: Likewise.
	* warnsw.adb: Likewise.
	* warnsw.ads: Likewise.
	* widechar.adb: Likewise.
	* widechar.ads: Likewise.
	* xeinfo.adb: Likewise.
	* xnmake.adb: Likewise.
	* xoscons.adb: Likewise.
	* xr_tabls.adb: Likewise.
	* xr_tabls.ads: Likewise.
	* xref_lib.adb: Likewise.
	* xref_lib.ads: Likewise.
	* xsinfo.adb: Likewise.
	* xsnamest.adb: Likewise.
	* xtreeprs.adb: Likewise.
	* xutil.adb: Likewise.
	* xutil.ads: Likewise.

2021-05-03  Piotr Trojanek  <trojanek@adacore.com>

	* exp_dist.adb (Build_From_Any_Call): Remove initial value for
	Fnam; fix style.
	(Build_To_Any_Call): Remove initial value for Fnam.
	(Build_TypeCode_Call): Likewise.

2021-05-03  Piotr Trojanek  <trojanek@adacore.com>

	* checks.adb, exp_aggr.adb, exp_attr.adb, exp_ch6.adb,
	exp_disp.adb, exp_imgv.adb, exp_util.adb, sem_attr.adb,
	sem_ch13.adb, sem_ch8.adb, sem_eval.adb, sem_scil.adb,
	sem_util.adb: Replace calls to RTE with Is_RTE.

2021-05-03  Piotr Trojanek  <trojanek@adacore.com>

	* sem_ch4.adb (Try_Object_Operation): Reuse local constant.

2021-05-03  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch4.adb (Try_Object_Operation): When a prefixed call is
	overloaded and illegal, and the All_Errors flag is off, generate
	an error message if the re-analysis of some candidate
	interpretation fails to produce one.

2021-05-03  Dmitriy Anisimkov  <anisimko@adacore.com>

	* libgnat/g-casuti.adb: Replace with "pragma No_Body".
	* libgnat/g-casuti.ads: Replace with a package renaming.

2021-05-03  Piotr Trojanek  <trojanek@adacore.com>

	* sem_attr.adb (Check_Program_Unit): Fix references to
	Concurrent_Kind and Is_Concurrent_Type; avoid repeated calls to
	Entity.

2021-05-03  Piotr Trojanek  <trojanek@adacore.com>

	* sem_attr.adb (Check_Program_Unit): Replace tests for Task_Kind
	and Protected_Kind with a collective test for Concurrent_Kind;
	likewise, replace calls to Is_Task_Type and Is_Protected_Type
	with a collective call to Is_Concurrent_Type; simplify into a
	single membership test; add missing Entry_Kind alternative.

2021-05-03  Piotr Trojanek  <trojanek@adacore.com>

	* sem_aggr.adb (Resolve_Record_Aggregate): Fix casing in error
	message.
	* sem_ch3.adb (Add_Internal_Interface_Entities): Fix unbalanced
	parens.
	* sem_elim.adb (Eliminate_Error_Msg): Add insertion character.

2021-05-03  Piotr Trojanek  <trojanek@adacore.com>

	* freeze.adb (Freeze_Profile): Replace Error_Msg_NE with
	Error_Msg_N; change to continuation message.
	* sem_cat.adb, sem_ch10.adb, sem_ch12.adb, sem_ch5.adb: Replace
	calls to Error_Msg_NE with calls to Error_Msg_N.

2021-05-03  Piotr Trojanek  <trojanek@adacore.com>

	* exp_disp.adb, sem_aggr.adb, sem_cat.adb, sem_ch10.adb,
	sem_ch12.adb, sem_ch3.adb, sem_ch4.adb, sem_ch5.adb,
	sem_ch6.adb, sem_ch8.adb, sem_ch9.adb, sem_prag.adb,
	sem_res.adb: Remove extra leading and trailing space in error
	messages.

2021-05-03  Arnaud Charlet  <charlet@adacore.com>

	* sem_prag.adb (Set_Exported): Do not warn on exporting a type.

2021-05-03  Ed Schonberg  <schonberg@adacore.com>

	* sem_warn.adb (Check_References): Do not emit warning on a
	selected component when enclosing type has no discriminant and
	type of component has partial initialization.

2021-05-03  Justin Squirek  <squirek@adacore.com>

	* contracts.adb (Build_Postconditions_Procedure): Remove
	internally generated if statement used to control finalization
	actions.
	* exp_ch6.adb (Add_Return, Expand_Non_Function_Return,
	Expand_Simple_Function_Return): Add if statement around
	_postconditions to control finalization.
	* exp_ch7.adb (Build_Finalizer): Likewise.
	* sem_prag.adb (Find_Related_Declaration_Or_Body): Add case to
	handle Context itself being a handled sequence of statements.

2021-05-03  Justin Squirek  <squirek@adacore.com>

	* sem_util.adb (In_Return_Value): Modified to detect when
	implicit dereference is specified on the return type of a
	function call within the expression being checked.

2021-05-03  Ed Schonberg  <schonberg@adacore.com>

	* exp_aggr.adb (Expand_Array_Aggregate): If the parent node of
	the aggregate is a subprogram call there is no target in which
	to build the aggregate, and it has to be expanded into component
	assignments.

2021-05-03  Piotr Trojanek  <trojanek@adacore.com>

	* exp_prag.adb (Expand_Pragma_CUDA_Execute): Refill comments;
	remove periods after single-line comments; use procedural
	variant of Next_Entity.
	* gnat_cuda.adb: Refill comments; remove periods after
	single-line comments; replace calls to UI_From_Int with
	constants; change iteration bounds so they match the comments.
	* sem_prag.adb (Analyze_Pragma): Add checks for malformed pragma
	CUDA_Kernel aggregate; simplify processing of pragma CUDA_Global
	with Check_Arg_Count; sync comment with code for CUDA_Global.

2021-05-03  Arnaud Charlet  <charlet@adacore.com>

	* tbuild.adb (Make_Implicit_Loop_Statement): Disable restriction
	checking on dead paths.

2021-05-03  Arnaud Charlet  <charlet@adacore.com>

	* sem_util.adb (Check_Result_And_Post_State): Replace custom
	Has_In_Out_Parameter with existing Has_Out_Or_In_Out_Parameter
	flag which corresponds exactly to what we need.

2021-05-03  Arnaud Charlet  <charlet@adacore.com>

	* libgnat/a-ztcoio.adb: Remove unused with clause.

2021-05-03  Piotr Trojanek  <trojanek@adacore.com>

	* sem_ch13.adb (Build_Predicate_Functions): Fix typo in comment.
	(Resolve_Aspect_Expressions): Fix typo in comment; remove
	redundant check for no aspects; simplify with Discard_Node.

2021-05-03  Ed Schonberg  <schonberg@adacore.com>

	* sem_util.adb (Build_Constrained_Itype): Remove prior patch,
	issue is better handled in Sem_Ch13.Build_Predicate_Functions.
	* sem_ch13.adb (Build_Predicate_Functions): Do not build
	predicate function for an Itype with a defined
	Predicated_Parent, even if that designated parent does not yet
	have a Predicate_Function. This can happen in instance bodies
	nested within a generic unit.

2021-04-29  Eric Botcazou  <ebotcazou@adacore.com>

	* exp_attr.adb (Expand_N_Attribute_Reference)
	<Attribute_Max_Size_In_Storage_Elements>: Apply the checks for
	universal integer contexts only in the default case.
	* exp_ch4.adb (Get_Size_For_Range): Move to library level.
	(Expand_N_Type_Conversion): If the operand has Universal_Integer
	type and the conversion requires an overflow check, try to do an
	intermediate conversion to a narrower type.

2021-04-29  Arnaud Charlet  <charlet@adacore.com>

	* sem_ch3.adb (Check_Anonymous_Access_Component): Factor out
	core processing of Check_Anonymous_Access_Components.
	(Check_Anonymous_Access_Components): Call
	Check_Anonymous_Access_Component.
	(Process_Discriminants): Call Check_Anonymous_Access_Component.
	* freeze.adb (Freeze_Record_Type): Code cleanups and add more tree
	checking to handle changes in sem_ch3.adb.
	* sem_ch8.adb (Find_Type): Remove special case for access
	discriminant in task types, these are now supported.

2021-04-29  Eric Botcazou  <ebotcazou@adacore.com>

	* exp_ch4.adb (Expand_Compare_Minimize_Eliminate_Overflow): Remove
	entry condition.
	(Expand_N_In): Call Minimized_Eliminated_Overflow_Check on the left
	operand before doing the special overflow expansion.
	(Expand_N_Op_Eq): Likewise.
	(Expand_N_Op_Ge): Likewise.
	(Expand_N_Op_Gt): Likewise.
	(Expand_N_Op_Le): Likewise.
	(Expand_N_Op_Lt): Likewise.
	(Expand_N_Op_Ne): Likewise.
	(Minimized_Eliminated_Overflow_Check): Return False for Minimized
	if the size of the type is greater than that of Long_Long_Integer.

2021-04-29  Arnaud Charlet  <charlet@adacore.com>

	* exp_ch5.adb (Expand_N_If_Statement): Only perform the
	simplification on return True/False for internal nodes when
	-fpreserve-control-flow is not set.

2021-04-29  Eric Botcazou  <ebotcazou@adacore.com>

	* sem_attr.adb (Eval_Attribute) <Attribute_Machine>: Use
	Round_Even instead of Round in the call to the Machine routine.

2021-04-29  Bob Duff  <duff@adacore.com>

	* sem_attr.adb (Analyze_Attribute): Change "$" to "&".
	Otherwise, Errout will trip over an uninitialized (invalid)
	variable (Error_Msg_Unit_1).

2021-04-29  Eric Botcazou  <ebotcazou@adacore.com>

	* libgnat/s-valuer.adb (Scan_Decimal_Digits): Set Extra to zero
	when the precision limit is reached by means of trailing zeros
	and prevent it from being overwritten later.

2021-04-29  Yannick Moy  <moy@adacore.com>

	* errout.adb (Output_Messages): Insert SGR strings where needed.
	* erroutc.adb (Output_Message_Txt): Insert SGR strings where
	needed in the text of the message itself.
	(Output_Msg_Text): Allow for style message not to start
	with (style).
	* erroutc.ads: Add new constants and functions to control colors
	in messages output to the terminal. Add variable Use_SGR_Control
	that should be set to True for using SGR color control strings.

2021-04-29  Yannick Moy  <moy@adacore.com>

	* sem_eval.adb (Check_Non_Static_Context_For_Overflow): Apply
	compile-time checking for overflows in non-static contexts
	including inlined code.
	(Eval_Arithmetic_Op): Use the new procedure.
	(Eval_Unary_Op, Eval_Op_Expon): Add call to the new procedure.

2021-04-29  Justin Squirek  <squirek@adacore.com>

	* checks.adb (Apply_Type_Conversion_Checks): Move out constraint
	check generation, and add case for general access types with
	constraints.
	(Make_Discriminant_Constraint_Check): Created to centralize
	generation of constraint checks for stored discriminants.

2021-04-29  Eric Botcazou  <ebotcazou@adacore.com>

	* gnat1drv.adb (Adjust_Global_Switches): Force a 32-bit Duration
	type if the maximum integer size is lower than 64 bits.

2021-04-29  Arnaud Charlet  <charlet@adacore.com>

	* Makefile.rtl (ADA_EXCLUDE_SRCS): Remove unused files.
	(ADA_INCLUDE_SRCS): Remove libgnat/system.ads

2021-04-29  Arnaud Charlet  <charlet@adacore.com>

	* exp_aggr.adb (Collect_Initialization_Statements): Removed.
	(Convert_Aggr_In_Object_Decl, Expand_Array_Aggregate): Fix
	creation and insertion of Initialization_Statements.  Do not set
	Initialization_Statements when a transient scope is involved.
	Move processing of Array_Slice here.  Ensure that an object with
	an Array_Slice call gets its array component initialized.  Add
	comments.
	* exp_ch7.adb: Update comments.
	(Store_Actions_In_Scope): Deal properly with an empty list which
	might now be generated by Convert_Aggr_In_Object_Decl.
	* exp_ch3.adb: Update comments.
	(Expand_N_Object_Declaration): Remove processing of Array_Slice.

2021-04-29  Arnaud Charlet  <charlet@adacore.com>

	* sem_ch8.adb (Analyze_Object_Renaming): Update check for
	AI12-0401.

2021-04-29  Patrick Bernardi  <bernardi@adacore.com>

	* libgnat/s-stoele.ads (Storage_Offset): Cleanup comment.

2021-04-29  Gary Dismukes  <dismukes@adacore.com>

	* exp_util.adb (Add_Own_DIC): Relax the suppression of adding a
	DIC Check pragma that's done for abstract types by still doing
	it in the case where GNATprove_Mode is set.

2021-04-29  Joel Brobecker  <brobecker@adacore.com>

	* Makefile.rtl (ADA_EXCLUDE_SRCS): Remove s-gcc.adb, s-gcc.ads,
	s-gccdiv.adb, s-gccdiv.ads, s-gccshi.adb and s-gccshi.ads.

2021-04-29  Piotr Trojanek  <trojanek@adacore.com>

	* layout.adb (Layout_Type): Refine type of a local variable with
	the required size of object from Int to Pos (it is initialized
	with 8 and only multiplied by 2); fix unbalanced parens in
	comment.

2021-04-29  Eric Botcazou  <ebotcazou@adacore.com>

	* eval_fat.adb (Succ): Use Ureal_Half in a couple of places.

2021-04-29  Ed Schonberg  <schonberg@adacore.com>

	* sem_util.adb (Build_Constrained_Itype): Inhibit the generation
	of predicate functions for this Itype, which is created for an
	aggregate of a discriminated type. The object to which the
	aggregate is assigned, e.g a writable actual parameter, will
	apply the predicates if any are inherited from the base type.

2021-04-29  Piotr Trojanek  <trojanek@adacore.com>

	* sem_cat.adb (Set_Categorization_From_Pragmas): Remove special
	case for generic child units; remove optimization for empty list
	of pragmas; properly restore visibility.

2021-04-29  Piotr Trojanek  <trojanek@adacore.com>

	* sem_elab.adb (Process_SPARK_Instantiation): Fix typo in
	comment.
	* sem_prag.adb (Find_Related_Context): Add missing reference to
	No_Caching in the comment; handle pragmas on compilation units.

2021-04-29  Piotr Trojanek  <trojanek@adacore.com>

	* doc/gnat_rm/implementation_defined_attributes.rst: Change all
	occurrences of "permissible prefix" to "allowed prefix", for
	consistency.
	* gnat_rm.texi: Regenerate.

2021-04-29  Eric Botcazou  <ebotcazou@adacore.com>

	* eval_fat.adb (Succ): Add a special case for zero if the type does
	not support denormalized numbers.  Always use the canonical formula
	in other cases and add commentary throughout the function.

2021-04-29  Eric Botcazou  <ebotcazou@adacore.com>

	* libgnat/s-fatgen.adb: Remove with clause for Interfaces and
	use type clauses for Interfaces.Unsigned_{16,32,64}.
	(Small16): Remove.
	(Small32): Likewise
	(Small64): Likewise.
	(Small80): Likewise.
	(Tiny16): Likewise.
	(Tiny32): Likewise.
	(Tiny64): Likewise.
	(Tiny80): Likewise.
	(Siz): Always use 16.
	(NR): New constant.
	(Rep_Last): Use it in the computation.
	(Exp_Factor): Remove special case for 80-bit.
	(Sign_Mask): Likewise.
	(Finite_Succ): New function implementing the Succ attribute for
	finite numbers.
	(Pred): Rewrite in terms of Finite_Succ.
	(Succ): Likewise.

2021-04-29  Arnaud Charlet  <charlet@adacore.com>

	* debug_a.adb (Debug_Output_Astring): Remove obsolete comment.

2021-04-29  Arnaud Charlet  <charlet@adacore.com>

	* sem_attr.adb (Check_Image_Type): Protect against empty
	Image_Type.

2021-04-29  Arnaud Charlet  <charlet@adacore.com>

	* libgnat/a-nbnbin.ads (From_Universal_Image): New.
	(Big_Integer): Update definition.
	* libgnat/a-nbnbre.ads, libgnat/a-nbnbre.adb
	(From_Universal_Image): New.
	(From_String): Remove alternate body, replaced by
	From_Universal_Image.
	(Big_Real): Update definition.

2021-04-29  Gary Dismukes  <dismukes@adacore.com>

	* sem_ch8.adb (Find_Type): Check the No_Obsolescent_Features
	restriction for 'Class applied to an untagged incomplete
	type (when Ada_Version >= Ada_2005).  Remove disabling of the
	warning message for such usage, along with the ??? comment,
	which no longer applies (because the -gnatg switch no longer
	sets Warn_On_Obsolescent_Feature).

2021-04-29  Yannick Moy  <moy@adacore.com>

	* errout.adb (Error_Msg_NEL): Extract span from node.
	(First_And_Last_Nodes): Use spans for subtype indications and
	attribute definition clauses.
	(Write_Source_Code_Lines): Fix for tabulation characters. Change
	output for large spans to skip intermediate lines.
	* sem_case.adb (Check_Choice_Set): Report duplicate choice on
	the Original_Node for the case.
	(Generic_Check_Choices): Set the Original_Node for the rewritten
	case, so that the subtree used in spans has the correct
	locations.

2021-04-28  Piotr Trojanek  <trojanek@adacore.com>

	* sem_ch13.adb, sem_util.adb: Fix style.

2021-04-28  Piotr Trojanek  <trojanek@adacore.com>

	* nlists.ads (List_Length): Adapt comment to match the
	behaviour.

2021-04-28  Arnaud Charlet  <charlet@adacore.com>

	* sem_eval.adb (Eval_Selected_Component): Only consider compile
	time known aggregates.

2021-04-28  Eric Botcazou  <ebotcazou@adacore.com>

	* libgnat/s-fatgen.adb: Add use clause for Interfaces.Unsigned_16
	and Interfaces.Unsigned_32.
	(Small16): New constant.
	(Small32): Likewise.
	(Small64): Likewise.
	(Small80): Likewise.
	(Pred): Declare a local overlay for Small and return it negated
	for zero if the type does not support denormalized numbers.
	(Succ): Likewise, but return it directly.

2021-04-28  Piotr Trojanek  <trojanek@adacore.com>

	* inline.adb (Formal_Is_Used_Once): Refine type of the counter
	variable; remove redundant assignment.

2021-04-28  Patrick Bernardi  <bernardi@adacore.com>

	* libgnarl/s-interr.adb (Install_Restricted_Handlers): Change
	Prio parameter to type Interrupt_Priority.
	* libgnarl/s-interr.ads (Install_Restricted_Handlers): Likewise.
	* libgnarl/s-interr__dummy.adb (Install_Restricted_Handlers):
	Likewise.
	* libgnarl/s-interr__hwint.adb (Install_Restricted_Handlers):
	Likewise.
	* libgnarl/s-interr__sigaction.adb (Install_Restricted_Handlers):
	Likewise.
	* libgnarl/s-interr__vxworks.adb (Install_Restricted_Handlers):
	Likewise.

2021-04-28  Piotr Trojanek  <trojanek@adacore.com>

	* sem_type.ads (Write_Interp_Ref): Removed; no longer needed.
	* sem_type.adb (Headers): Removed; now the hash table is
	directly in the Interp_Map alone.
	(Interp_Map): Now an instance of the GNAT.HTable.Simple_HTable.
	(Last_Overloaded): New variable to emulate Interp_Map.Last.
	(Add_One_Interp): Adapt to new data structure.
	(Get_First_Interp): Likewise.
	(Hash): Likewise.
	(Init_Interp_Tables): Likewise.
	(New_Interps): Likewise.
	(Save_Interps): Likewise; handle O_N variable like in
	Get_First_Interp.
	(Write_Interp_Ref): Removed; no longer needed.

2021-04-28  Piotr Trojanek  <trojanek@adacore.com>

	* inline.adb (Do_Reset_Calls): Now an instance of Traverse_Proc.

2021-04-28  Piotr Trojanek  <trojanek@adacore.com>

	* sem_ch13.adb (Analyze_Aspect_Static): Reuse
	Error_Msg_Ada_2020_Feature for aspect Static.
	(Analyze_One_Aspect): Likewise for aspect Full_Access.

2021-04-28  Piotr Trojanek  <trojanek@adacore.com>

	* sem_ch13.adb (Analyze_Aspect_Static): Refactor to have a
	single check for the expression being present; adapt comments.

2021-04-28  Piotr Trojanek  <trojanek@adacore.com>

	* sem_ch13.adb (Analyze_Aspect_Static): Use aspect name in the
	error message.

2021-04-28  Piotr Trojanek  <trojanek@adacore.com>

	* sem_eval.adb (Eval_Selected_Component): Simplify with
	Unqualify.

2021-04-28  Eric Botcazou  <ebotcazou@adacore.com>

	* libgnat/s-valrea.adb (Fast2Sum): New function.
	(Integer_to_Real): Use it in an iterated addition with exact
	error handling for the case where an extra digit is needed.
	Move local variable now only used in the exponentiation case.

2021-04-28  Yannick Moy  <moy@adacore.com>

	* errout.adb: (Error_Msg_Internal): Use span instead of
	location.
	(Error_Msg, Error_Msg_NEL): Add versions with span parameter.
	(Error_Msg_F, Error_Msg_FE, Error_Msg_N, Error_Msg_NE,
	Error_Msg_NW): Retrieve span from node.
	(First_Node): Use the new First_And_Last_Nodes.
	(First_And_Last_Nodes): Expand on previous First_Node. Apply to
	other nodes than expressions.
	(First_Sloc): Protect against inconsistent locations.
	(Last_Node): New function based on First_And_Last_Nodes.
	(Last_Sloc): New function similar to First_Sloc.
	(Output_Messages): Update output when -gnatdF is used. Use
	character ~ for making the span visible, similar to what is done
	in GCC and Clang.
	* errout.ads (Error_Msg, Error_Msg_NEL): Add versions with span
	parameter.
	(First_And_Last_Nodes, Last_Node, Last_Sloc): New subprograms.
	* erroutc.adb: Adapt to Sptr field being a span.
	* erroutc.ads (Error_Msg_Object): Change field Sptr from
	location to span.
	* errutil.adb: Adapt to Sptr field being a span.
	* freeze.adb: Use Errout reporting procedures for nodes to get
	spans.
	* par-ch3.adb: Likewise.
	* par-prag.adb: Likewise.
	* par-util.adb: Likewise.
	* sem_case.adb: Likewise.
	* sem_ch13.adb: Likewise.
	* sem_ch3.adb: Likewise.
	* sem_prag.adb: Likewise.
	* types.ads: (Source_Span): New type for spans.
	(To_Span): Basic constructors for spans.

2021-04-28  Arnaud Charlet  <charlet@adacore.com>

	* einfo.adb (Discriminant_Constraint): Refine assertion.

2021-04-28  Gary Dismukes  <dismukes@adacore.com>

	* exp_util.adb (Add_Own_DIC): Suppress expansion of a DIC pragma
	when the pragma occurs for an abstract type, since that could
	lead to a call to an abstract function, and such DIC checks can
	never be performed for abstract types in any case.
	* sem_disp.adb (Check_Dispatching_Context): Suppress the check
	for illegal calls to abstract subprograms when the call occurs
	within a Default_Initial_Condition aspect and the call is passed
	the current instance as an actual.
	(Has_Controlling_Current_Instance_Actual): New function to test
	a call to see if it has any actuals given by direct references
	to a current instance of a type
	* sem_res.adb (Resolve_Actuals): Issue an error for a call
	within a DIC aspect to a nonprimitive subprogram with an actual
	given by the name of the DIC type's current instance (which will
	show up as a reference to the formal parameter of a DIC
	procedure).

2021-04-28  Ed Schonberg  <schonberg@adacore.com>

	* exp_ch3.adb (Expand_Record_Extension): Set Parent_Subtype on
	the type extension when within a generic unit, even though
	expansion is disabled, to allow for proper resolution of
	selected components inherited from an ancestor.

2021-04-28  Arnaud Charlet  <charlet@adacore.com>

	* sem_aux.adb (Is_Limited_Type): Fix logic to check Is_Type
	before assuming Ent is a typo.
	* sem_ch4.adb (Analyze_Expression_With_Actions): Update
	comments, minor reformatting.
	* sem_res.adb (Resolve_Declare_Expression): Add protection
	against no type.

2021-04-28  Arnaud Charlet  <charlet@adacore.com>

	* exp_ch6.adb: Fix typo in comment.
	* sem_ch3.adb (Access_Subprogram_Declaration): Add missing call
	to Create_Extra_Formals. Remove obsolete bootstrap check.
	* sem_eval.adb (Eval_Selected_Component): Simplify a
	selected_component on an aggregate.

2021-04-28  Piotr Trojanek  <trojanek@adacore.com>

	* fmap.ads (Reset_Tables): Remove outdated references to
	GNSA/ASIS.
	* sem_eval.ads (Initialize): Likewise.
	* sem_type.adb (Headers): Remove initialization at elaboration.
	* sem_type.ads (Init_Interp_Tables): Remove outdated reference
	to gnatf.
	* stringt.ads (Initialize): Fix style in comment.

2021-04-28  Piotr Trojanek  <trojanek@adacore.com>

	* sem_res.ads: Update reference in comment.
	* sem_type.ads: Fix casing in a name of a unit.

2021-04-28  Yannick Moy  <moy@adacore.com>

	* ghost.adb (Check_Ghost_Context): Add continuation message when
	in predicate.

2021-04-28  Eric Botcazou  <ebotcazou@adacore.com>

	* libgnat/s-valrea.adb (Integer_to_Real): Use a subtype of Num
	for the component type of the table of powers of ten.
	* libgnat/s-valuer.adb (Round_Extra): Add assertion on Base.

2021-04-28  Piotr Trojanek  <trojanek@adacore.com>

	* sem_ch5.adb (Analyze_Case_Statement): Extend optimization to
	all objects; fix typo in comment.

2021-04-28  Piotr Trojanek  <trojanek@adacore.com>

	* exp_ch9.adb (Build_Barrier_Function): Refine type of a
	protected type entity.
	(Is_Pure_Barrier): Fix style.

2021-04-28  Bob Duff  <duff@adacore.com>

	* exp_ch3.adb (Simple_Init_Defaulted_Type): Simplify the code,
	and always use OK_Convert_To, rather than Unchecked_Convert_To
	and Convert_To.

2021-04-28  Arnaud Charlet  <charlet@adacore.com>

	* sem_ch3.adb (Analyze_Object_Declaration): Remove dead code.
	* ali.ads, ali.adb (Scan_ALI): Remove unused parameters.
	Remove unused code related to Xref lines.
	(Get_Typeref): Removed, no longer used.

2021-04-28  Arnaud Charlet  <charlet@adacore.com>

	* exp_attr.adb (Build_Array_VS_Func, Build_Record_VS_Func,
	Expand_N_Attribute_Reference): Use Get_Fullest_View instead of
	Validated_View.
	(Build_Record_VS_Func): Adjust to keep using Validated_View.
	(Expand_N_Attribute_Reference) [Valid]: Use
	Small_Integer_Type_For to allow for more compile time
	evaluations.
	* sem_util.adb (Cannot_Raise_Constraint_Error): Add more precise
	support for N_Indexed_Component and fix support for
	N_Selected_Component which wasn't completely safe.
	(List_Cannot_Raise_CE): New.
	* libgnat/i-cobol.adb (Valid_Packed): Simplify test to address
	new GNAT warning.

2021-04-28  Arnaud Charlet  <charlet@adacore.com>

	* .gitignore: New.
	* doc/share/conf.py: Add Python 3 compatibility.
	* doc/share/gnat.sty: Add missing file.

2021-04-28  Richard Wai  <richard@annexi-strayline.com>

	* libgnat/a-cohase.ads (Cursor): Synchronize comments for the Cursor
	type definition to be consistent with identical definitions in other
	container packages. Add additional comments regarding the importance of
	maintaining the "Position" component for predefined equality.
	* libgnat/a-cohama.ads (Cursor): Likewise.
	* libgnat/a-cihama.ads (Cursor): Likewise.
	* libgnat/a-cohase.adb (Find, Insert): Ensure that Cursor objects
	always have their "Position" component set to ensure predefined
	equality works as required.
	* libgnat/a-cohama.adb (Find, Insert): Likewise.
	* libgnat/a-cihama.adb (Find, Insert): Likewise.

2021-04-28  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/decl.c (gnat_to_gnu_subprog_type): Do not demote a
	const or pure function because of a parameter whose type is pointer
	to function.
	* gcc-interface/trans.c (Call_to_gnu): Do not put back a conversion
	between an actual and a formal that are unconstrained array types.
	(gnat_gimplify_expr) <CALL_EXPR>: New case.
	* gcc-interface/utils2.c (build_binary_op): Do not use |= operator.
	(gnat_stabilize_reference_1): Likewise.
	(gnat_rewrite_reference): Likewise.
	(build_unary_op): Do not clear existing TREE_CONSTANT on the result.
	(gnat_build_constructor): Also accept the address of a constant
	CONSTRUCTOR as constant element.

2021-04-28  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/trans.c (is_array_of_scalar_type): New predicate.
	(find_decls_r): New function.
	(return_slot_opt_for_pure_call_p): New predicate.
	(Call_to_gnu): Do not create a temporary for the return value if the
	parent node is an aggregate.  If there is a target, try to apply the
	return slot optimization to regular calls to pure functions returning
	an array of scalar type.

2021-04-28  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/trans.c (language_function): Add comment.
	(loop_info_d): Add fndecl and invariants fields.
	(find_loop_for): Test fndecl instead of the context of var.
	(find_loop): New function.
	(Regular_Loop_to_gnu): Fold back into...
	(Loop_Statement_to_gnu): ...this.  Emit invariants on entry, if any.
	(gnat_to_gnu) <N_Selected_Component>: Record nonconstant invariant
	offset computations in loops when optimization is enabled.
	* gcc-interface/utils2.c (gnat_invariant_expr): Handle BIT_AND_EXPR.

2021-04-20  Martin Liska  <mliska@suse.cz>

	* gnatvsn.ads: Bump Library_Version to 12.

2021-04-13  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/misc.c (gnat_init): Set default range bits to 0.
	* gcc-interface/trans.c (extract_encoding): Delete.
	(decode_name): Likewise.
	(File_Name_to_gnu): New function.
	(gigi): Call it to translate file names.  Replace assertion on
	1-1 mapping between files and line maps with conditional error.

2021-04-11  Gerald Pfeifer  <gerald@pfeifer.com>

	* gnat_ugn.texi (Top): Avoid invalid "up" link.

2021-03-29  Eric Botcazou  <ebotcazou@adacore.com>

	PR ada/99802
	* freeze.adb (Is_Full_Access_Aggregate): Call Is_Full_Access_Object
	on the name of an N_Assignment_Statement to spot full access.

2021-03-10  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/decl.c (gnat_to_gnu_entity): Build a TYPE_STUB_DECL
	for the main variant of an enumeration type declared as volatile.

2021-03-09  Mikael Pettersson  <mikpelinux@gmail.com>

	* raise-gcc.c: On Cygwin include mingw32.h to prevent
	windows.h from including x86intrin.h or emmintrin.h.

2021-03-05  Eric Botcazou  <ebotcazou@adacore.com>

	PR ada/99264
	* init.c (__gnat_alternate_sta) [Linux]: Remove preprocessor test on
	MINSIGSTKSZ and bump size to 32KB.
	* libgnarl/s-osinte__linux.ads (Alternate_Stack_Size): Bump to 32KB.

2021-03-02  Mikael Pettersson  <mikpelinux@gmail.com>

	PR bootstrap/98590
	* cstreams.c: Ensure fileno_unlocked() is visible on Cygwin.

2021-03-02  Eric Botcazou  <ebotcazou@adacore.com>

	PR ada/99095
	* sem_ch8.adb (Check_Constrained_Object): Restrict again the special
	optimization for limited types to non-array types except in the case
	of an extended return statement.

2021-03-02  Eric Botcazou  <ebotcazou@adacore.com>

	PR ada/99020
	* sem_ch3.adb (Build_Discriminated_Subtype): Set the Cloned_Subtype
	only if the type is not private.

2021-02-26  YunQiang Su  <yunqiang.su@cipunited.com>

	PR ada/98996
	* Makefile.rtl: <mips*-*-linux*>
	add 128Bit operation file for MIPS N64 and N32 to
	LIBGNAT_TARGET_PAIRS and EXTRA_GNATRTL_NONTASKING_OBJS

2021-02-12  Arnaud Charlet  <charlet@adacore.com>

	* repinfo.ads, repinfo.adb (*SO_Ref*): Restore.

2021-02-03  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/decl.c (components_to_record): If the first component
	with rep clause is the _Parent field with variable size, temporarily
	set it aside when computing the internal layout of the REP part again.
	* gcc-interface/utils.c (finish_record_type): Revert to taking the
	maximum when merging sizes for all record types with rep clause.
	(merge_sizes): Put SPECIAL parameter last and adjust recursive calls.

2021-02-03  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/decl.c (gnat_to_gnu_entity) <E_Array_Type>: Make the
	two fields of the fat pointer type addressable, and do not make the
	template type read-only.
	<E_Record_Type>: If the type has discriminants mark it as may_alias.
	* gcc-interface/utils.c (make_dummy_type): Likewise.
	(build_dummy_unc_pointer_types): Likewise.

2021-01-26  Marius Hillenbrand  <mhillen@linux.ibm.com>

	PR ada/98228
	* gcc-interface/utils.c (maybe_pad_type): Test the size of the new
	packable type instead of its alignment for addressability's sake.

2021-01-25  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/trans.c (make_covariant_thunk): Set the DECL_CONTEXT
	of the parameters and do not set TREE_PUBLIC on the thunk.
	(maybe_make_gnu_thunk): Pass the alias to the covariant thunk.
	* gcc-interface/utils.c (finish_subprog_decl): Set the DECL_CONTEXT
	of the parameters here...
	(begin_subprog_body): ...instead of here.

2021-01-19  Eric Botcazou  <ebotcazou@adacore.com>

	PR ada/98740
	* gcc-interface/trans.c (add_decl_expr): Always mark TYPE_ADA_SIZE.

2021-01-14  Sebastian Huber  <sebastian.huber@embedded-brains.de>

	PR ada/98595
	* Makefile.rtl (LIBGNAT_TARGET_PAIRS) <riscv*-*-rtems*>: Use
	wraplf version of Aux_Long_Long_Float.

2021-01-03  Eric Botcazou  <ebotcazou@adacore.com>

	* gnatvsn.ads: Bump copyright year.

2021-01-01  Jakub Jelinek  <jakub@redhat.com>

	* gnat_ugn.texi: Bump @copying's copyright year.
	* gnat_rm.texi: Likewise.

2021-01-01  Jakub Jelinek  <jakub@redhat.com>

	* ChangeLog-2020: Rotate ChangeLog.  New file.

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