path: root/gcc/ada/ChangeLog-2018

2018-12-23  Iain Sandoe  <iain@sandoe.co.uk>

	* adaint.c [__APPLE__] (__gnat_lwp_self): Ensure that the system
	interface used is available on the target.

2018-12-14  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/decl.c (rm_size): Take into account the padding in
	the case of a record type containing a template.
	* gcc-interface/trans.c (Attribute_to_gnu) <Attr_Size>: Likewise.
	Do not subtract the padded size for Max_Size_In_Storage_Elements.
	<Attr_Descriptor_Size>: Tweak comment.

2018-12-14  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/decl.c (choices_to_gnu): Directly use a naked boolean
	discriminant if the value is the boolean true.

2018-12-11  Eric Botcazou  <ebotcazou@adacore.com>

	PR ada/88429
	* gcc-interface/Makefile.in (./stamp-gnatlib1-$(RTSDIR)): Also pass
	MULTISUBDIR to sub-make and add quotes around $(THREAD_KIND).
	(gnatlib-shared-dual): Also pass PICFLAG_FOR_TARGET to sub-make.
	(gnatlib-sjlj): Also pass MULTISUBDIR to sub-make, but do not pass
	PICFLAG_FOR_TARGET.
	(gnatlib-zcx): Likewise.

2018-12-11  Piotr Trojanek  <trojanek@adacore.com>

	* libgnat/a-calend.ads: Add "Global => null" contract to pure routines.

2018-12-11  Hristian Kirtchev  <kirtchev@adacore.com>

	* freeze.adb (Check_Pragma_Thread_Local_Storage): Use the
	violating set to diagnose detect an illegal initialization,
	rather than the complement of the OK set.
	(Freeze_Object_Declaration): Factorize code in
	Has_Default_Initialization.
	(Has_Default_Initialization, Has_Incompatible_Initialization):
	New routines.

2018-12-11  Dmitriy Anisimkov  <anisimko@adacore.com>

	* libgnat/g-socket.ads (Family_Type): Add new enumerated value
	Family_Unspec to be able to use it in Get_Address_Info parameter
	and find IPv4 together with IPv6 addresses.
	(Inet_Addr_Bytes_Length): Zero length for Family_Unspec.  New
	IPv6 predefined constant addresses.
	(IPv4_To_IPv6_Prefix): IPv4 mapped to IPv6 address prefix.
	(Is_IPv4_Address): Rename from Is_IP_Address and published.
	(Is_IPv6_Address): New routine.
	(Image of Inet_Addr_Type): Fix description about IPv6 address
	text representation.
	(Level_Type): New propocol level IP_Protocol_For_IPv6_Level.
	(Add_Membership_V4): New socket option equal to Add_Membership.
	(Drop_Membership_V4): New socket option equal to
	Drop_Membership.
	(Multicast_If_V4): New socket option equal to Multicast_If.
	(Multicast_Loop_V4, Add_Membership_V6, Drop_Membership_V6,
	Multicast_If_V6, Multicast_Loop_V6, Multicast_Hops, IPv6_Only):
	New socket option for IPv6.
	(Address_Info): New record to keep address info.
	(Address_Info_Array): Array to keep address info records.
	(Get_Address_Info): Routine to get address info records by host
	and service names.
	(Host_Service): Record to keep host and service names.
	(Get_Name_Info): New routine to get host and service names by
	address.
	(Create_Socket): Add Level parameter, IP_Protocol_For_IP_Level
	default.
	(Name_Array, Inet_Addr_Array): Change array index to Positive.
	* libgnat/g-socket.adb (IPV6_Mreq): New record definition for
	IPv6.
	(Hex_To_Char): Remove.
	(Short_To_Network, Network_To_Short): Move to package
	GNAT.Sockets.Thin_Common.
	(Is_IP_Address): Remove.
	(To_In_Addr, To_Inet_Addr): Move to package
	GNAT.Sockets.Thin_Common.
	(Get_Socket_Option): Get value of Multicast_Loop option as
	integer boolean, process IPv6 options. Don't try to get
	Add_Membership_V4, Add_Membership_V6, Drop_Membership_V4, and
	Drop_Membership_V6 as not supported by the socket API.
	(Set_Socket_Option): Set value of Multicast_Loop option as
	integer boolean, process IPv6 options.
	* gsocket.h
	(IPV6_ADD_MEMBERSHIP): Define from IPV6_JOIN_GROUP if necessary
	for VxWorks.
	(IPV6_DROP_MEMBERSHIP): Define from IPV6_LEAVE_GROUP if
	necessary for VxWorks
	(HAVE_INET_NTOP): New definition.
	(HAVE_INET_PTON): Includes VxWorks now.
	* socket.c (__gnat_getaddrinfo, __gnat_getnameinfo,
	__gnat_freeaddrinfo, __gnat_gai_strerror, __gnat_inet_ntop): New
	routines.
	* libgnat/g-sothco.ads, libgnat/g-sothco.adb
	(socklen_t, In6_Addr, To_In6_Addr): New.
	(To_In_Addr, To_Inet_Addr): Move from package body GNAT.Sockets.
	(To_Inet_Addr): New overload with In6_Addr type parmeter.
	(In_Addr_Access_Array): Remove.
	(Sockaddr): Unchecked_Union instead of Sockaddr_In and old
	defined generic Sockaddr.
	(Set_Address): Use it to set family, port and address into
	Sockaddr.
	(Get_Address): New routine to get Socket_Addr_Type from
	Sockaddr.
	(Addrinfo): Structure to use with getaddrinfo.
	(C_Getaddrinfo, C_Freeaddrinfo, C_Getnameinfo, C_GAI_Strerror,
	Inet_Ntop): New routine import.
	(Short_To_Network, Network_To_Short): Move from package body
	GNAT.Sockets.
	* libgnat/g-stsifd__sockets.adb: Use Sockaddr instead of
	Sockaddr_In.
	* s-oscons-tmplt.c (AF_UNSPEC, EAI_SYSTEM, SOCK_RAW,
	IPPROTO_IPV6, IP_RECVERR, SIZEOF_socklen_t, IF_NAMESIZE): New
	constants.
	(AI_xxxx_OFFSET): Constants to consider platform differences in
	field positions and sizes for addrinfo structure.
	(AI_xxxxx): Flags for getaddrinfo.
	(NI_xxxxx): Flags for getnameinfo.
	(IPV6_xxxxx): Socket options for IPv6.
	(Inet_Ntop_Linkname): New routine.

2018-12-11  Yannick Moy  <moy@adacore.com>

	* sem_ch6.adb (Analyze_Subprogram_Body_Helper): Deactivate
	expansion in ignored ghost subprogram body.
	* sem_ch7.adb (Analyze_Package_Body_Helper): Deactivate
	expansion in ignored ghost package body.

2018-12-11  Ed Schonberg  <schonberg@adacore.com>

	* exp_unst.adb (Register_Subprogram): A subprogram whose address
	is taken (through attribute Address or Access) is reachable and
	cannot be eliminated, even if there is no explicit call to it:
	the address may be used in an indirect call or in some
	address-related operation.

2018-12-11  Ed Schonberg  <schonberg@adacore.com>

	* sem_util.adb (Get_Actual_Subtype): Function can return type
	mark.
	(Get_Cursor_Type): Improve recovery and error message on a
	misplaced First aspect for an iterable type.

2018-12-11  Hristian Kirtchev  <kirtchev@adacore.com>

	* checks.adb: Add with and use clauses for Sem_Mech.
	(Ensure_Valid): Update the "annoying special case" to include
	entry and function calls. Use Get_Called_Entity to obtain the
	entry or subprogram being invoked, rather than retrieving it
	manually. Parameters passed by reference do not need a validity
	check.

2018-12-11  Yannick Moy  <moy@adacore.com>

	* sem_prag.adb (Analyze_Global_Item): Refine error message.

2018-12-11  Ed Schonberg  <schonberg@adacore.com>

	* exp_ch7.adb (Check_Unnesting_In_Declarations): Extend
	subprogram so that it is usable for visible and private
	declarations of a package declaration, not just for declarations
	in the pakage body.
	* exp_ch13.adb (Expand_Freeze_Entity): Handle properly the
	freezing of a finalizer routine generated for a controlled objet
	declaration. Special processing already applies to finalizers
	because they are usually displaced into another construct.

2018-12-11  Arnaud Charlet  <charlet@adacore.com>

	* exp_unst.adb (Unnest_Subprogram): Ensure Current_Subprogram is
	always initialized.

2018-12-11  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/decl.c (gnat_to_gnu_entity): Add
	gnat_annotate_type local variable initialized to Empty.
	<E_Record_Subtype>: Set it to the Cloned_Subtype, if any.  For
	types, back-annotate alignment and size values earlier and only
	if the DECL was created here; otherwise, if gnat_annotate_type
	is present, take the values from it.
	(gnat_to_gnu_field): Add gnat_clause local variable.  If a
	component clause is present, call validate_size only once on the
	Esize of the component.  Otherwise, in the packed case, do not
	call validate_size again on the type of the component but
	retrieve directly its RM size.
	(components_to_record): Minor tweak.
	(set_rm_size): Remove useless test.
	* gcc-interface/trans.c (gnat_to_gnu): Do not wrap the instance of
	a boolean discriminant attached to a variant part.

2018-12-11  Ed Schonberg  <schonberg@adacore.com>

	* sem_aggr.adb (Array_Aggr_Subtype. Resolve_Aggr_Expr): Indicate
	that aggregate subtype has a predicate if the component type has
	a predicate; do not rely on exisatence of predicate function for
	component, in case component is a type no yet frozen, for which
	predicate function has not been created yet.

2018-12-11  Eric Botcazou  <ebotcazou@adacore.com>

	* exp_aggr.adb (Packed_Array_Aggregate_Handled): Bail out for
	any non-scalar type as component type of the array.

2018-12-11  Eric Botcazou  <ebotcazou@adacore.com>

	* einfo.ads (Is_Bit_Packed_Array): Fix values of component size.
	(Is_Packed): Likewise.
	* gcc-interface/utils.c (convert): Do not extract the value of a
	justified modular type if the destination type is a regular
	array.
	* gcc-interface/decl.c (gnat_to_gnu_component_type): Pass
	TYPE_DECL to validate_size wherever the array has packed
	components.

2018-12-11  Bob Duff  <duff@adacore.com>

	* gnat1drv.adb (gnat1drv): Pass the correct Object value when
	calling Write_ALI in the case of -gnatQ.
	* gnatbind.adb (Gnatbind): Avoid silent failure; give an error
	message.

2018-12-11  Ed Schonberg  <schonberg@adacore.com>

	* exp_unst.adb (Needs_Fat_Pointer): A fat pointer is required if
	the entity has a private type whose full view is an
	unconstrained array type.
	(Rewrite_One_Ref): If the reference is to a static constant, use
	its value rather than create a reference through the activation
	record. This is more efficient, and furthermore indispensable if
	the context requires a static constant, such as in a branch of a
	case statement.

2018-12-11  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch3.adb (Analyze_Object_Declaration): Apply
	Dynamic_Predicate check to an object of an array type
	initialized with an aggregate.

2018-12-11  Hristian Kirtchev  <kirtchev@adacore.com>

	* freeze.adb (Add_To_Result): Move the ignored Ghost-specific
	handling of freeze nodes to...
	(Freeze_Entity): ...here. This ensures that the freeze nodes of
	constructs that have recursive freezing are preserved when the
	context is ignored Ghost, and the top level construct being
	frozen is non-Ghost.

2018-12-11  Ed Schonberg  <schonberg@adacore.com>

	* uintp.ads, uintp.adb (UI_From_Integral): New generic function,
	to simplify construction of Universal_Integer representations
	from any Integer type. If type is small enough the code is
	equivalent to a call to UI_To_Int with appropriate conversions;
	otherwise the routine uses the existing mechanism of building a
	vector of suitable integer values and calling Vector_To_Uint.
	The routine must not be applied to a biased type.

2018-12-11  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch3.adb (Build_Itype_Reference): Handle properly an itype
	reference created for a function that is a compilation unit, for
	example if the function builds in place an object of a limited
	type.

2018-12-11  Dmitriy Anisimkov  <anisimko@adacore.com>

	* libgnat/g-socket.ads, libgnat/g-socket.adb: Fix duration
	computations to be compatible with the type for socket timeouts
	on Windows.

2018-12-11  Gary Dismukes  <dismukes@adacore.com>

	* exp_util.ads: Use preferred U.S. spelling of "honored".
	* sem_spark.adb: Remove extra whitespace.

2018-12-11  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_util.adb (Insert_Action): Add new formal parameter
	Spec_Expr_OK.
	(Insert_Actions): Add new formal parameter Spec_Expr_OK. Update
	all calls to Insert_Actions where relevant. Honour an insertion
	from a spec expression context when requested by the caller.
	* exp_util.ads (Insert_Action): Add new formal parameter
	Spec_Expr_OK.
	(Insert_Actions): Add new formal parameter Spec_Expr_OK.
	* freeze.adb (Add_To_Result): Force the insertion of the freeze
	node even when the context is a spec expression.

2018-12-11  Jerome Lambourg  <lambourg@adacore.com>

	* vxaddr2line.adb, vxlink-bind.adb, vxlink-bind.ads,
	vxlink-link.adb, vxlink-link.ads, vxlink-main.adb, vxlink.adb,
	vxlink.ads: Remove.
	* gcc-interface/Make-lang.in, gcc-interface/Makefile.in: Remove
	bits for vxaddr2line.

2018-12-11  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_aggr.adb, exp_ch7.adb, gnat1drv.adb, sem_ch10.adb,
	sem_ch13.adb, sem_ch6.adb, sem_ch7.adb, sem_util.adb: Minor
	reformatting.

2018-12-11  Eric Botcazou  <ebotcazou@adacore.com>

	* fe.h (Is_Atomic_Object): Declare.
	(Is_Volatile_Object): Likewise.
	* gcc-interface/trans.c (atomic_or_volatile_copy_required_p): New.
	(Call_to_gnu): Generate a copy for an actual parameter passed by
	reference if the conditions set forth by RM C.6(19) are met and
	specificially deal with an atomic actual parameter.

2018-12-11  Piotr Trojanek  <trojanek@adacore.com>

	* sem_util.adb (Is_Subprogram_Stub_Without_Prior_Declaration):
	Return False on stubs that complete a generic subprogram.
	* sem_util.ads: Update corresponding comment.

2018-12-11  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch4.adb (Analyze_Allocator): In GNATprove mode build a
	subtype declaration if the allocator has a subtype indication
	with a constraint. This allows additional proofs to be applied
	to allocators that designate uninitialized constrained objects.

2018-12-11  Yannick Moy  <moy@adacore.com>

	* sem_util.adb (Has_Full_Default_Initialization): Consider
	access types as having full default initialization.

2018-12-11  Yannick Moy  <moy@adacore.com>

	* gnat1drv.adb (Gnat1drv): Issue specific error message in
	GNATprove mode when multiple file names on the command line.
	* osint.adb, osint.ads (Dump_Command_Line_Source_File_Names):
	New procedure to print file names on the command line.

2018-12-11  Javier Miranda  <miranda@adacore.com>

	* exp_aggr.adb (Convert_To_Assignments): When gnerating C, do
	not declare a temporary to initialize an aggregate assigned to
	Out or In_Out parameters whose type has no discriminants. This
	avoids stack overflow errors at runtime.

2018-12-11  Ed Schonberg  <schonberg@adacore.com>

	* exp_ch7.adb (Check_Unnesting_Elaboration_Code): Extend
	algorithm to cover subprograms generated in nested loops and in
	exception handlers, in order to build an explicit elaboration
	procedure in more complex cases.

2018-12-11  Jerome Lambourg  <lambourg@adacore.com>

	* Makefile.rtl, gcc-interface/Makefile.in: Remove crtbe bits for
	VxWorks.
	* libgnat/system-vxworks-arm-rtp-smp.ads,
	libgnat/system-vxworks-arm-rtp.ads,
	libgnat/system-vxworks-arm.ads,
	libgnat/system-vxworks-e500-kernel.ads,
	libgnat/system-vxworks-e500-rtp-smp.ads,
	libgnat/system-vxworks-e500-rtp.ads,
	libgnat/system-vxworks-ppc-kernel.ads,
	libgnat/system-vxworks-ppc-rtp-smp.ads,
	libgnat/system-vxworks-ppc-rtp.ads,
	libgnat/system-vxworks-ppc.ads,
	libgnat/system-vxworks-x86-kernel.ads,
	libgnat/system-vxworks-x86-rtp-smp.ads,
	libgnat/system-vxworks-x86-rtp.ads,
	libgnat/system-vxworks7-aarch64-rtp-smp.ads,
	libgnat/system-vxworks7-aarch64.ads,
	libgnat/system-vxworks7-arm-rtp-smp.ads,
	libgnat/system-vxworks7-e500-kernel.ads,
	libgnat/system-vxworks7-e500-rtp-smp.ads,
	libgnat/system-vxworks7-e500-rtp.ads,
	libgnat/system-vxworks7-ppc-kernel.ads,
	libgnat/system-vxworks7-ppc-rtp-smp.ads,
	libgnat/system-vxworks7-ppc-rtp.ads,
	libgnat/system-vxworks7-ppc64-kernel.ads,
	libgnat/system-vxworks7-ppc64-rtp-smp.ads,
	libgnat/system-vxworks7-x86-kernel.ads,
	libgnat/system-vxworks7-x86-rtp-smp.ads,
	libgnat/system-vxworks7-x86-rtp.ads,
	libgnat/system-vxworks7-x86_64-kernel.ads,
	libgnat/system-vxworks7-x86_64-rtp-smp.ads: Remove pragma
	Linker_Options for --specs.
	* vx_crtbegin.c, vx_crtbegin.inc, vx_crtbegin_array.c,
	vx_crtbegin_attr.c, vx_crtend.c, vxworks-gnat-crtbe-link.spec:
	Remove.

2018-12-11  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch13.adb (Check_Aspect_At_End_Of_Declarations,
	Freeze_Entity_Checks): Process aspect Predicate in the same
	fashion as aspect Dynamic_Predicate.

2018-12-11  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/trans.c (elaborate_all_entities_for_package):
	Skip aliasing subprograms.

2018-12-11  Bob Duff  <duff@adacore.com>

	* doc/gnat_ugn/gnat_utility_programs.rst: Update gnatmetric
	documentation for the Libadalang-based version.

2018-12-11  Javier Miranda  <miranda@adacore.com>

	* exp_aggr.adb (In_Object_Declaration): Removed.
	(Is_CCG_Supported_Aggregate): New subprogram that replaces
	In_Object_Declaration extending its functionality to indicate if
	an aggregate is in a context supported by the CCG backend.

2018-12-11  Bob Duff  <duff@adacore.com>

	* doc/gnat_ugn/gnat_utility_programs.rst: Update gnatstub
	documentation for the Libadalang-based version.
	* gnat_ugn.texi: Regenerate.

2018-12-11  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch13.adb (Push_Type, Pop_Type): New procedures, used for
	analysis of aspect expressions for record types, whose
	components (not only discriminants) may be referenced in aspect
	expressions.
	(Analyze_Aspect_Specifications, Analyze_Aspects_At_Freeze_Point,
	Analyze_Aspect_At_End-Of_Declarations,
	Resolve_Aspect_Expressions): Use the new subprograms.
	(Check_Aspect_At_End_Of_Declarations): Improve error message.
	(Build_Predicate_Functions): Do not build their bodies in a
	generic unit.
	(Is_Derived_Type_With_Constraint): New subprogram to uncover and
	reject aspect specificationss on types that appear after the
	type is frozen.
	* sem_ch13.ads (Push_Scope_And_Install_Discriminants,
	Uninstall_Discriminants_And_Pop_Scope): Remove.
	* sem_ch6.adb, sem_ch6.ads (Fully_Conformant_Expressions):
	Additional parameter to improve error message on illegal aspect
	specifications whose resolution differ between aspect
	specification and freeze point.
	* freeze.adb: Remove references to
	Install/Uninstall_Discriminants.

2018-12-11  Pierre-Marie de Rodat  <derodat@adacore.com>

	* doc/gnat_ugn/building_executable_programs_with_gnat.rst:
	Document the -fgnat-encodings switch.
	* gnat_ugn.texi: Regenerate.

2018-12-11  Justin Squirek  <squirek@adacore.com>

	* sem_ch10.adb (Analyze_Subunit): Modify conditional to fully
	remove parent contexts from library-level subprogram bodies in
	addition to package bodies.

2018-12-11  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_prag.adb (Expand_Pragma_Initial_Condition): Do not
	generate an Initial_Condition procedure and a call to it when
	the associated pragma is ignored.
	* sem_ch10.adb (Analyze_Compilation_Unit): Minor cleanup.

2018-12-11  Eric Botcazou  <ebotcazou@adacore.com>

	* fe.h (Debug_Generated_Code): Declare.
	* gcc-interface/gigi.h (enum inline_status_t): Rename
	is_disabled to is_default, is_enabled to is_requested and add
	is_prescribed.
	* gcc-interface/decl.c (inline_status_for_subprog): New function.
	(gnat_to_gnu_entity) <E_Subprogram_Type>: Use it to get the
	inlining status of the subprogram.
	* gcc-interface/trans.c (gigi): Adjust to above renaming.
	(build_raise_check): Likewise.
	(Compilation_Unit_to_gnu): Likewise.
	(gnat_to_gnu): Likewise.
	* gcc-interface/utils.c (create_subprog_decl): Likewise.  Deal
	with is_prescribed status by setting
	DECL_DISREGARD_INLINE_LIMITS.  Do not set the
	DECL_NO_INLINE_WARNING_P flag if Debug_Generated_Code is true.

2018-12-03  Gary Dismukes  <dismukes@adacore.com>

	* sem_aux.adb (Object_Type_Has_Constrained_Partial_View): Return
	True for an untagged discriminated formal derived type when
	referenced within a generic body (augments existing test for
	formal private types).
	* sem_util.adb (Is_Dependent_Component_Of_Mutable_Type): If the
	prefix of the name is a qualified expression, retrieve the
	operand of that. Add a test of whether the (possible)
	dereference prefix is a variable, and also test whether that
	prefix might just be of an access type (occurs in some implicit
	dereference cases) rather than being an explicit dereference.
	Retrieve the Original_Node of the object name's main prefix and
	handle the possibility of that being a qualified expression.
	Remove special-case code for explicit dereferences that don't
	come from source. Add test for the renaming not being within a
	generic body for proper determination of whether a formal access
	type is known to be constrained (it is within a generic spec,
	but not in the body).  Fix an existing incorrect test for
	renaming of a discriminant-dependent component of a untagged
	generic formal type being within a generic body, adding test of
	taggedness and calling In_Generic_Body (now properly checks for
	cases where the renaming is in a nongeneric body nested within a
	generic).  Return False in cases where the selector is not a
	component (or discriminant), which can occur for
	prefixed-notation calls.

2018-12-03  Ed Schonberg  <schonberg@adacore.com>

	* sem_res.adb (Apply_Check): For array types, apply a length
	check rather than a qualification, to avoid spurious errors when
	the value of a dependend expression has a matching length but
	different bounds from those of the type of the contect.

2018-12-03  Hristian Kirtchev  <kirtchev@adacore.com>

	* libgnat/a-calend.adb: Update the number of leap seconds. Add
	the hard time values for year 2015 and 2016.

2018-12-03  Gary Dismukes  <dismukes@adacore.com>

	* exp_ch3.adb, libgnarl/s-taasde.adb, libgnarl/s-taenca.adb,
	libgnarl/s-tarest.adb, libgnarl/s-tasini.adb,
	libgnarl/s-taskin.ads, libgnarl/s-tasren.adb,
	libgnarl/s-tassta.adb, libgnarl/s-tasuti.adb: Spelling fixes and
	minor reformatting.

2018-12-03  Eric Botcazou  <ebotcazou@adacore.com>

	* exp_aggr.adb (Convert_To_Positional): Use
	Static_Array_Aggregate to decide whether to set
	Compile_Time_Known_Aggregate on an already flat aggregate.
	(Expand_Array_Aggregate): Remove test on
	Compile_Time_Known_Aggregate that turns out to be dead and
	simplify.
	(Is_Static_Component): New predicate extracted from...
	(Static_Array_Aggregate): ...here.  Test neither Is_Tagged_Type
	nor Is_Controlled for the type, but test whether the component
	type has discriminants.  Use the Is_Static_Component predicate
	consistently for the positional and named cases.

2018-12-03  Eric Botcazou  <ebotcazou@adacore.com>

	* freeze.adb (Freeze_Entity): Do not freeze the partial view of
	a private subtype if its base type is also private with delayed
	freeze before the full type declaration of the base type has
	been seen.
	* sem_ch7.adb (Preserve_Full_Attributes): Add assertion on
	freeze node.

2018-12-03  Eric Botcazou  <ebotcazou@adacore.com>

	* exp_ch3.adb (Build_Record_Init_Proc): Inherit an
	initialization procedure if it is present, even if it is null.

2018-12-03  Patrick Bernardi  <bernardi@adacore.com>

	* libgnarl/s-taskin.ads (ATC_Level_Base): Redefine to span from
	-1 to Max_ATC_Nesting so that 0 represents no ATC nesting and -1
	represented a completed task. To increase readability, new
	constants are introduced to represent key ATC nesting levels.
	Consequently, Level_No_Pending_Abort replaces
	ATC_Level_Infinity.  ATC_Level related definitions now
	documented.
	(Ada_Task_Control_Block): The default initialization of
	components ATC_Nesting_Level and Pending_ATC_Level now use new
	ATC_Level_Base constants.  Comments improved
	* libgnarl/s-taskin.adb (Initialize): Improve the initialisation
	of the first element of the Entry_Calls array to facilitate
	better maintenance.
	* libgnarl/s-taasde.ads: Update comment.
	* libgnarl/s-taasde.adb, libgnarl/s-taenca.adb,
	libgnarl/s-tasren.adb, libgnarl/s-tassta.adb,
	libgnarl/s-tasuti.ads, libgnarl/s-tasuti.adb: Use new
	ATC_Level_Base constants.
	* libgnarl/s-tarest.adb (Create_Restricted_Task): Improve the
	initialisation of the first element of the task's Entry_Calls
	array to facilitate better maintenance.
	* libgnarl/s-tasini.ads (Locked_Abort_To_Level): Update
	signature to accept ATC_Level_Base.
	* libgnarl/s-tasini.adb (Locked_Abort_To_Level): Update
	signature to accept ATC_Level_Base.  Use new ATC_Level_Base
	constants and only modify the aborting task's Entry_Calls array
	if any entry call is happening.
	* libgnarl/s-tposen.adb (Protected_Single_Entry_Call): Reference
	the first element of the task's Entry_Calls array via 'First
	attribute to facilitate better maintenance.

2018-12-03  Eric Botcazou  <ebotcazou@adacore.com>

	* einfo.adb (Write_Entity_Info): Don't take Scope of Standard
	package.
	* sem_ch4.adb (Remove_Abstract_Operations): Add missing blank
	lines to -gnatdv output.
	* sem_type.adb (Write_Overloads): Take Entity of entity names
	only.

2018-12-03  Hristian Kirtchev  <kirtchev@adacore.com>

	* checks.adb, exp_aggr.adb, exp_attr.adb, exp_ch3.adb,
	exp_util.adb, exp_util.ads, repinfo.adb, sem_attr.adb,
	sem_ch3.adb, sem_res.adb, sem_util.adb: Minor reformatting.

2018-12-03  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch3.adb (Complete_Private_Subtype): Enhance comment.

2018-12-03  Olivier Hainque  <hainque@adacore.com>

	* gcc-interface/lang.opt (fopenacc): New option for Ada.
	* gcc-interface/misc.c (gnat_handle_option): Handle it.
	* gcc-interface/trans.c (struct loop_info_d): Add OMP
	attributes.
	(Iterate_Acc_Clause_Arg, Acc_gnat_to_gnu): New functions,
	helpers for OpenACC pragmas processing in Pragma_to_gnu.
	(Acc_Var_to_gnu, Acc_Reduc_Var_to_gnu, Acc_Reduc_to_gnu):
	Likewise.
	(Acc_Size_Expr_to_gnu, Acc_Size_List_to_gnu): Likewise.
	(Pragma_Acc_Data_to_gnu): Likewise.
	(Pragma_to_gnu): Handle Pragma_Acc_Loop, Pragma_Acc_Data,
	Pragma_Acc_Kernels and Pragma_Acc_Parallel.
	(Acc_Loop_to_gnu, Regular_Loop_to_gnu): New functions. Helpers
	for ...
	(Loop_Statement_to_gnu): Rework to handle OpenACC loops.

2018-12-03  Olivier Hainque  <hainque@adacore.com>

	* gcc-interface/targtyps.c (MALLOC_OBSERVABLE_ALIGNMENT): Set to
	2 * POINTER_SIZE.

2018-12-03  Ed Schonberg  <schonberg@adacore.com>

	* sem_res.adb (Set_Slice_Subtype): The index type of a slice is
	constrained.

2018-11-26  Matthias Klose <doko@ubuntu.com>

	PR ada/88191
	* libgnarl/s-linux__alpha.ads: Define SIGSYS.

2018-11-19  Alexandre Oliva <oliva@adacore.com>

	PR ada/81878
	* gcc-interface/config-lang.in (lang_requires): Set to "c c++"
	when gnattools wants it.

2018-11-19  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/cuintp.c (UI_From_gnu): Remove code for 32-bit hosts.

2018-11-15  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/misc.c (gnat_init_gcc_eh): Do not override the switch
	-fnon-call-exceptions passed on the command line in -gnatp mode.

2018-11-14  Ed Schonberg  <schonberg@adacore.com>

	* exp_util.ads, exp_util.adb: Change the profile of
	Silly_Boolean_Array_Xor_Test, adding a formal that can be a copy
	of the right opersnd. This prevents unnesting anomalies when
	that operand contains uplevel references.
	* exp_ch4.adb (Expand_Boolean_Operation): Use this new profile.
	* exp_pakd.adb (Expand_Packed_Boolean_Operator): Ditto.

2018-11-14  Patrick Bernardi  <bernardi@adacore.com>

	* libgnarl/a-intnam__linux.ads: Add SIGSYS.
	* libgnarl/s-linux__alpha.ads, libgnarl/s-linux__android.ads,
	libgnarl/s-linux__hppa.ads, libgnarl/s-linux__mips.ads,
	libgnarl/s-linux__riscv.ads, libgnarl/s-linux__sparc.ads,
	libgnarl/s-linux__x32.ads: Rename SIGLTHRRES, SIGLTHRCAN and
	SIGLTHRDBG to SIG32, SIG33 and SIG34 as their names are
	implementation specific.
	* libgnarl/s-osinte__linux.ads, libgnarl/s-linux.ads: Add
	SIGSYS.  Move SIG32, SIG33 and SIG34 from the unmasked list to
	the reserved list.

2018-11-14  Eric Botcazou  <ebotcazou@adacore.com>

	* exp_aggr.adb (Is_Static_Element): New predicate extracted
	from...
	(Check_Static_Components): ...here.  Call Is_Static_Element on
	each element of the component association list, if any.
	(Flatten): Duplicate the expression of an others choice only if
	it is static or is an aggregate which can itself be flattened.

2018-11-14  Olivier Hainque  <hainque@adacore.com>

	* sigtramp-vxworks-target.inc: Fix stack checking test errors in
	ACATS, now that GCC can emit CFI rules referring to sp in
	absence of a frame pointer.

2018-11-14  Eric Botcazou  <ebotcazou@adacore.com>

	* exp_aggr.adb (Check_Static_Components): Remove dead test.
	(Flatten): Likewise.  Move comment around.

2018-11-14  Hristian Kirtchev  <kirtchev@adacore.com>

	* sem_ch6.adb (Analyze_Null_Procedure): Capture Ghost and
	SPARK-related global state at the start of the routine. Set the
	Ghost mode of the completed spec if any.  Restore the saved
	Ghost and SPARK-related global state on exit from the routine.

2018-11-14  Eric Botcazou  <ebotcazou@adacore.com>

	* doc/gnat_ugn/building_executable_programs_with_gnat.rst
	(-gnatR): Document new -gnatR4 level.
	* gnat_ugn.texi: Regenerate.
	* opt.ads (List_Representation_Info): Bump upper bound to 4.
	* repinfo.adb: Add with clause for GNAT.HTable.
	(Relevant_Entities_Size): New constant.
	(Entity_Header_Num): New type.
	(Entity_Hash): New function.
	(Relevant_Entities): New set implemented with GNAT.HTable.
	(List_Entities): Also list compiled-generated entities present
	in the Relevant_Entities set. Consider that the Component_Type
	of an array type is relevant.
	(List_Rep_Info): Reset Relevant_Entities for each unit.
	* switch-c.adb (Scan_Front_End_Switches): Add support for -gnatR4.
	* switch-m.adb (Normalize_Compiler_Switches): Likewise
	* usage.adb (Usage): Likewise.

2018-11-14  Javier Miranda  <miranda@adacore.com>

	* exp_disp.adb (Expand_Interface_Thunk): Extend handling of
	renamings of the predefined equality primitive.
	(Make_Secondary_DT): When calling Expand_Interface_Thunk() pass
	it the primitive, instead of its Ultimate_Alias; required to
	allow the called routine to identify renamings of the predefined
	equality operation.

2018-11-14  Hristian Kirtchev  <kirtchev@adacore.com>

	* freeze.adb (Check_Pragma_Thread_Local_Storage): New routine. A
	variable with suppressed initialization has no initialization
	for purposes of the pragma.
	(Freeze_Object_Declaration): Remove variable
	Has_Default_Initialization as it is no longer used. Use routine
	Check_Pragma_Thread_Local_Storage to verify the semantics of
	pragma Thread_Local_Storage.

2018-11-14  Ed Schonberg  <schonberg@adacore.com>

	* sem_res.adb (Resolve_If_Expression): Verify that the subtypes
	of all dependent expressions obey the constraints of the
	expected type for the if-expression.
	(Analyze_Expression): Only add qualificiation to the dependent
	expressions when the context type is constrained. Small
	adjustment to previous patch.

2018-11-14  Eric Botcazou  <ebotcazou@adacore.com>

	* sem_prag.adb (Process_Compile_Time_Warning_Or_Error): Don't
	register a compile-time warning or error for 'Alignment or 'Size
	of an entity declared in a generic unit.

2018-11-14  Justin Squirek  <squirek@adacore.com>

	* sem_ch8.adb (Use_One_Package): Add test for out-of-scope
	homonyms.

2018-11-14  Ed Schonberg  <schonberg@adacore.com>

	* exp_ch3.adb: (Expand_N_Object_Declaration): If the expression
	is a limited aggregate its resolution is delayed until the
	object declaration is expanded.
	* sem_ch3.adb: (Analyze_Object_Declaration): If the expression
	is a limited aggregate and the declaration has a following
	address clause indicate that resolution of the aggregate (which
	must be built in place) must be delayed.

2018-11-14  Bob Duff  <duff@adacore.com>

	* sem_attr.adb (To_Address): Simplify setting of
	Is_Static_Expression. Remove second (unconditional) call to
	Set_Is_Static_Expression -- surely it's not static if the
	operand is not.  Initialize Static on declaration.  Do not try
	to fold 'To_Address, even though it's static.
	* exp_attr.adb (To_Address): Preserve Is_Static_Expression.
	* sinfo.ads, sem_eval.ads, sem_eval.adb (Is_Static_Expression,
	Is_OK_Static_Expression, Raises_Constraint_Error): Simplify
	documentation.  There was too much repetition and redundancy.

2018-11-14  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch3.adb (Analyze_Object_Declaration): Use the
	Actual_Subtype to preserve information about a constant
	initialized with a non-static entity that is known to be valid,
	when the type of the entity has a narrower range than that of
	the nominal subtype of the constant.
	* checks.adb (Determine_Range): If the expression is a constant
	entity that is known-valid and has a defined Actual_Subtype, use
	it to determine the actual bounds of the value, to enable
	additional optimizations.

2018-11-14  Hristian Kirtchev  <kirtchev@adacore.com>

	* back_end.adb, checks.adb, exp_ch3.adb, exp_ch4.adb,
	exp_ch7.adb, exp_disp.adb, exp_unst.adb, exp_util.adb,
	freeze.adb, sem_ch13.adb, sem_ch6.adb, sem_ch7.adb,
	sem_prag.adb, sem_spark.adb, sem_util.adb: Minor reformatting.

2018-11-14  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_ch4.adb (Find_Aliased_Equality): New routine.
	(Find_Equality): Reimplemented.
	(Is_Equality): New routine.

2018-11-14  Hristian Kirtchev  <kirtchev@adacore.com>

	* ghost.adb (Ghost_Entity): New routine.
	(Mark_And_Set_Ghost_Assignment): Reimplemented.
	* sem_ch5.adb (Analyze_Assignment): Assess whether the target of
	the assignment is an ignored Ghost entity before analyzing the
	left hand side.
	* sem_ch8.adb (Find_Direct_Name): Update the subprogram
	signature. Do not generate markers and references when they are
	not desired.
	(Nvis_Messages): Do not execute when errors are not desired.
	(Undefined): Do not emit errors when they are not desired.
	* sem_ch8.ads (Find_Direct_Name): Update the subprogram
	signature and comment on usage.
	* sem_util.adb (Ultimate_Prefix): New routine.
	* sem_util.ads (Ultimate_Prefix): New routine.

2018-11-14  Justin Squirek  <squirek@adacore.com>

	* sem_ch7.adb (Uninstall_Declarations): Add conditional to avoid
	uninstalling potential visibility during freezing on enumeration
	literals.

2018-11-14  Jerome Lambourg  <lambourg@adacore.com>

	* env.c: Do not include crt_externs.h on iOS, as it does not
	exist there. This is also true for the iPhone Simulator SDK.

2018-11-14  Ed Schonberg  <schonberg@adacore.com>

	* exp_ch7.adb (Check_Unnesting_In_Declarations): New procedure
	to transform blocks that appear in the declarative part of a
	package body into subprograms if they contain generated
	subprograms (such as finalization routines). Needed to generate
	the proper upward references in unnesting mode.

2018-11-14  Ed Schonberg  <schonberg@adacore.com>

	* freeze.adb (Freeze_Fixed_Point_Type): If the given low bound
	of the type is less than the nearest model number, do not expand
	the range of the type to include the model number below the
	bound. Similar adjustment if the upper bound is larger than the
	nearest model number.

2018-11-14  Hristian Kirtchev  <kirtchev@adacore.com>

	* checks.adb (Install_Primitive_Elaboration_Check): Do not
	create the check when exceptions cannot be used.
	* exp_ch6.adb (Expand_N_Extended_Return_Statement): Do not raise
	Program_Errror when exceptions cannot be used. Analyze the
	generated code with all checks suppressed.
	* exp_ch7.adb (Build_Finalizer): Remove the declaration of
	Exceptions_OK.
	(Make_Deep_Array_Body): Remove the declaration of Exceptions_OK.
	(Make_Deep_Record_Body): Remove the declaration of
	Exceptions_OK.
	(Process_Transients_In_Scope): Remove the declaration of
	Exceptions_OK.
	* exp_util.adb (Exceptions_In_Finalization_OK): Renamed to
	Exceptions_OK.
	* exp_util.ads (Exceptions_In_Finalization_OK): Renamed to
	Exceptions_OK.

2018-11-14  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_ch4.adb (Expand_N_Op_Eq): Remove duplicated code and use
	routine Find_Equality instead.
	(Find_Equality): New routine.

2018-11-14  Piotr Trojanek  <trojanek@adacore.com>

	* sem_util.adb (First_From_Global_List): Do not expect
	N_Selected_Component in the Global contract; simplify assertion
	with Nam_In.

2018-11-14  Piotr Trojanek  <trojanek@adacore.com>

	* sem_ch12.adb (Instantiate_Object): Set
	Corresponding_Generic_Association on generic actuals with
	default expression.
	* sinfo.ads (Corresponding_Generic_Association): Update comment.

2018-11-14  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_ch4.adb (Expand_Concatenate): Use the proper routine to
	set the need for debug info.
	* exp_dbug.adb (Build_Subprogram_Instance_Renamings): Use the
	proper routine to set the need for debug info.
	* exp_prag.adb (Expand_Pragma_Initial_Condition): Use the proper
	routine to set the need for debug info.
	* exp_util.adb (Build_DIC_Procedure_Declaration): Use the proper
	routine to set the need for debug info.
	(Build_Invariant_Procedure_Declaration): Use the proper routine
	to set the need for debug info.
	* ghost.adb (Record_Ignored_Ghost_Node): Add statements as a
	whole class to the list of top level ignored Ghost nodes.
	* sem_util.adb (Set_Debug_Info_Needed): Do not generate debug
	info for an ignored Ghost entity.

2018-11-14  Piotr Trojanek  <trojanek@adacore.com>

	* bindgen.adb, exp_cg.adb, repinfo.adb, sprint.adb: Minor reuse
	Cancel_Special_Output where possible.

2018-11-14  Piotr Trojanek  <trojanek@adacore.com>

	* exp_dbug.ads, sem_util.ads: Minor fixes in comments.

2018-11-14  Arnaud Charlet  <charlet@adacore.com>

	* adabkend.adb (Scan_Back_End_Switches): Handle -gx switches
	explicitly.

2018-11-13  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/misc.c (gnat_init_gcc_eh): Set -fnon-call-exceptions
	for the runtime on platforms where System.Machine_Overflow is true.

2018-11-08  Eric Botcazou  <ebotcazou@adacore.com>

	* fe.h (Suppress_Checks): Declare.
	* gcc-interface/misc.c (gnat_init_gcc_eh): Set -fnon-call-exceptions
	only if checks are not suppressed and -faggressive-loop-optimizations
	only if they are.
	* gcc-interface/trans.c (struct loop_info_d): Remove has_checks and
	warned_aggressive_loop_optimizations fields.
	(gigi): Do not clear warn_aggressive_loop_optimizations here.
	(Raise_Error_to_gnu): Do not set has_checks.
	(gnat_to_gnu) <N_Indexed_Component>: Remove support for aggressive
	loop optimizations.

2018-11-08  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/decl.c (components_to_record): Remove obsolete kludge.
	* gcc-interface/utils.c (make_packable_type): Set TYPE_PACKED on the
	new type but do not take into account the setting on the old type for
	the new fields.  Rename a local variable.
	(finish_record_type): Clear DECL_BIT_FIELD_TYPE on a variant part at
	offset 0, if any.
	(create_field_decl): Tweak comment.

2018-10-22  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/utils.c (unchecked_convert): Use local variables for
	the biased and reverse SSO attributes of both types.
	Further extend the processing of integral types in the presence of
	reverse SSO to all scalar types.

2018-10-22  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/trans.c (Pragma_to_gnu) <Pragma_Inspection_Point>: Use
	a simple memory constraint in all cases.

	* gcc-interface/lang-specs.h: Bump copyright year.

2018-10-17  David Malcolm  <dmalcolm@redhat.com>

	* gcc-interface/Make-lang.in (selftest-ada): New.

2018-10-09  Eric Botcazou  <ebotcazou@adacore.com>

	* exp_ch3.adb (Is_Null_Statement_List): New predicate.
	(Build_Array_Init_Proc): Use it to find out whether the
	initialization procedure Is_Null_Init_Proc; if so, set
	Warnings_Off on the parameter.
	(Build_Init_Procedure): Likewise.
	(Init_Formals): Use an in/out first parameter only for
	unconstrained arrays and for records either containing or built
	for proteced types or task types; use an out parameter in all
	the other cases.
	* fe.h (Is_Init_Proc): Declare.
	* gcc-interface/decl.c (type_requires_init_of_formal): Do not
	return true for a discriminant in an unchecked union.
	(gnat_to_gnu_param): Do not create a PARM_DECL for the Out
	parameter of an initialization procedure.

2018-10-09  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/decl.c (gnat_to_gnu_entity) <E_Constant>: If
	this is not a definition, retrieve the expression in all cases
	even if we are just annotating types.
	* gcc-interface/trans.c (gnat_to_gnu): Also translate Size
	attribute for constrained types in this mode.

2018-10-09  Eric Botcazou  <ebotcazou@adacore.com>

	* adaint.c (__gnat_get_executable_suffix_ptr): Add new line.
	(__gnat_locate_exec): Check that HOST_EXECUTABLE_SUFFIX is not
	empty before doing a string search for it.
	* socket.c (ATTRIBUTE_UNUSED): Define.
	(__gnat_disable_sigpipe): Add ATTRIBUTE_UNUSED on parameter.
	* terminals.c (ATTRIBUTE_UNUSED): Move around.
	(__gnat_setup_child_communication): Add ATTRIBUTE_UNUSED on
	parameter.
	(__gnat_send_header): Add ATTRIBUTE_UNUSED on parameters.

2018-10-09  Yannick Moy  <moy@adacore.com>

	* sem_prag.adb (Process_Compile_Time_Warning_Or_Error): Rewrite
	pragmas as null statements in GNATprove mode.

2018-10-09  Eric Botcazou  <ebotcazou@adacore.com>

	* exp_ch6.adb (Add_Call_By_Copy_Code): Initialize the temporary
	made for an Out parameter if the formal type has discriminants.

2018-10-09  Maroua Maalej  <maalej@adacore.com>

	* sem_spark.adb (Check_Declaration): fix bug related to non
	access object permissions.

2018-10-09  Doug Rupp  <rupp@adacore.com>

	* libgnat/a-ncelfu.ads: Fix name in header to match package.

2018-10-09  Eric Botcazou  <ebotcazou@adacore.com>

	* exp_disp.adb (Make_Disp_Asynchronous_Select_Spec): Set
	Warnings_Off on the B out parameter.

2018-10-09  Eric Botcazou  <ebotcazou@adacore.com>

	* einfo.ads: Small comment fix.

2018-10-09  Eric Botcazou  <ebotcazou@adacore.com>

	* sem_ch7.adb (Has_Referencer): Add comment for the
	N_Freeze_Entity case.  Do not rely on
	Has_Referencer_Of_Non_Subprograms to clear the Is_Public flag on
	subprogram entities.

2018-10-09  Ed Schonberg  <schonberg@adacore.com>

	* exp_unst.adb (In_Synchronized_Call): Handle properly private
	types whose full views are synchronized types, in order to
	recognize generated subprograms whose bodies must be considered
	reachable even if no direct calls to them are visible in the
	source.

2018-10-09  Ed Schonberg  <schonberg@adacore.com>

	* exp_ch4.adb (Expand_Modular_Op): When expanding an operation
	on nonbinary modular types, convert the opersnds to an integer
	type that is large enough to hold the modulus of the type, which
	may be larger than Integer'Last.

2018-10-09  Ed Schonberg  <schonberg@adacore.com>

	* exp_unst.adb (Unnest_Subprogram):  When an uplevel reference
	is to an unconstrained formal, the 'Access reference that is
	created to initialize the corresponding component of the
	activation record must be wrapped in an unchecked conversion to
	the generated type of the component. Otherwise, spurious suvtype
	conformance errors will be generated when the code is within an
	instantiation and the type of the formal is a formal type of the
	enclosing generic. Note that during unnesting there is no simple
	way to determine that the code appears within an instance
	because ther is no scope stack.

2018-10-09  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/decl.c (type_requires_init_of_formal): New
	predicate.
	(gnat_to_gnu_param): Use it to determine whether a PARM_DECL
	must be created for an Out parameter passed by copy.

2018-10-09  Arnaud Charlet  <charlet@adacore.com>

	* libgnat/a-coboho.ads (Storage_Element): Fix a typo.

2018-10-09  Claire Dross  <dross@adacore.com>

	* libgnat/a-cfinve.ads: Remove default value for
	Max_Size_In_Storage_Elements as it was not supported in SPARK.

2018-10-09  Ed Schonberg  <schonberg@adacore.com>

	* exp_ch6.adb (Add_Call_By_Copy_Node,
	Add_Simple_Call_By_Copy_Node, Expand_Call_Helper): Reset
	Is_True_Constant on entities used as Out or In_Out parameters in
	calls.

2018-10-09  Ed Schonberg  <schonberg@adacore.com>

	* exp_unst.adb (Unnest_Subprogram): Do not load System to obtain
	the Address entity unless an activation record is being built.
	Removes useless with_clauses for System when nested subprograms
	do not have uplevel references, and therefore do not need
	activation records.

2018-10-09  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch6.adb (Fully_Conformant_Expressions): Handle properly
	the conformance check on an aspect expression that includes a
	call to an instance of Unchecked_Conversion, or more generally a
	call to an intrinsic operation.

2018-10-09  Eric Botcazou  <ebotcazou@adacore.com>

	* repinfo.adb: Remove with/use clause for Stand.
	(List_Mechanisms): List the mechanism of functions only.

2018-10-09  Bob Duff  <duff@adacore.com>

	* doc/gnat_ugn/gnat_utility_programs.rst: Correct spelling of
	--eol switch.  Document the language-version switches.  Update
	description for --no-exception.

2018-10-09  Vasiliy Fofanov  <fofanov@adacore.com>

	* libgnat/s-os_lib.ads (Normalize_Pathname): Fix incorrect
	comment.

2018-10-09  Arnaud Charlet  <charlet@adacore.com>

	* vxlink.adb: Remove pragma Annotate, no longer needed.

2018-10-09  Ed Schonberg  <schonberg@adacore.com>

	* checks.adb (Apply_Type_Conversion_Checks): Use GNATprove_Mode
	rather than SPARK_mode in order to preserve the Do_Range_Check
	flag for verification purposes.

2018-10-09  Ed Schonberg  <schonberg@adacore.com>

	* exp_aggr.adb (Expand_Array_Aggregate): If it is not possible
	to build in place an aggregate with component associations, set
	the Warnings_Off flag on the generated temporary, to prevent
	spurious warnings from the backend when compiling with the
	-Wuninitialized gcc flag.

2018-09-30  Alexandre Oliva <oliva@adacore.com>

	* gcc-interface/lang-specs.h (default_compilers): When given
	fcompare-debug-second, adjust auxbase like cc1, and pass
	gnatd_A.
	* gcc-interface/misc.c (flag_compare_debug): Remove variable.
	(gnat_post_options): Do not set it.
	* lib-writ.adb (flag_compare_debug): Remove import.
	(Write_ALI): Do not test it.

2018-09-28  Eric Botcazou  <ebotcazou@adacore.com>
            Pierre-Marie de Rodat  <derodat@adacore.com>

	* gcc-interface/decl.c (is_cplusplus_method): Do not require C++
	convention on Interfaces.
	* gcc-interface/trans.c (Subprogram_Body_to_gnu): Try to create a
	bona-fide thunk and hand it over to the middle-end.
	(get_controlling_type): New function.
	(use_alias_for_thunk_p): Likewise.
	(thunk_labelno): New static variable.
	(make_covariant_thunk): New function.
	(maybe_make_gnu_thunk): Likewise.
	* gcc-interface/utils.c (finish_subprog_decl): Set DECL_CONTEXT of the
	result DECL here instead of...
	(end_subprog_body): ...here.

2018-09-27  Martin Sebor  <msebor@redhat.com>

	* gcc-interface/utils.c (make_packable_type): Introduce a temporary
	to avoid -Wnonnull.
	(unchecked_convert): Same.

2018-09-26  Elisa Barboni  <barboni@adacore.com>

	* sem_prag.adb (Check_Refined_Global_Item): Improve error
	message.

2018-09-26  Thomas Quinot  <quinot@adacore.com>

	* sem_ch13.adb (Inherit_Aspects_At_Freeze_Point): For a
	representation item that is an N_Aspect_Definition, retrieve the
	entity it applies to using the Entity attribute.

2018-09-26  Justin Squirek  <squirek@adacore.com>

	* sem_ch8.adb (Analyze_Subprogram_Renaming): Add extra condition
	to check for unmarked subprogram references coming from
	renamings.

2018-09-26  Arnaud Charlet  <charlet@adacore.com>

	* back_end.adb (Scan_Compiler_Arguments): Store -G xxx switches.

2018-09-26  Yannick Moy  <moy@adacore.com>

	* errout.ads: Update comment for insertion character '?'.
	* inline.adb: Use simple insertion character '?' for GNATprove
	info messages.
	* sem_res.adb (Resolve_Call): Issue an info message on inlining
	in GNATprove mode.

2018-09-26  Ed Schonberg  <schonberg@adacore.com>

	* checks.adb (Apply_Type_Conversion_Checks): Do not generate a
	range check on the expression of the conversion if it involves a
	fixed-point type, as such conversions are handled specially
	during expansion.
	* exp_ch4.adb (Expand_N_Type_Conversion): In a conversion from
	Fixed to Integer, use the base type of the expression to ensure
	that the caller will generate the proper constraint check when
	needed.

2018-09-26  Maroua Maalej  <maalej@adacore.com>

	* sem_spark.adb (Check_Loop_Statement): Fix a bug related to
	loop exit environment.
	(Check_Statement): fixing a bug when comparing the source and
	target in an assignment statement.

2018-09-26  Hristian Kirtchev  <kirtchev@adacore.com>

	* sem_ch12.adb (Instantiate_Package_Body): Capture and restore
	the full compilation context.
	(Instantiate_Subprogram_Body): Capture and restore the full
	compilation context.

2018-09-26  Yannick Moy  <moy@adacore.com>

	* debug.adb: Add use for -gnatd_f switch.
	* inline.adb (Cannot_Inline): Only issue info message for
	failure to inline in GNATprove mode when switch -gnatd_f is
	used.

2018-09-26  Javier Miranda  <miranda@adacore.com>

	* exp_disp.adb (Expand_Interface_Conversion): No displacement of
	the pointer needed when the type of the operand is an interface
	type that maches the target type and we are compiling under
	configurable runtime. Adding also documentation explaining why
	this cannot be done when compiling with the full runtime.
	* exp_intr.adb: Update comment.

2018-09-26  Hristian Kirtchev  <kirtchev@adacore.com>

	* sem_ch5.adb (Wrap_Loop_Statement): Annotate as No_Return.

2018-09-26  Ed Schonberg  <schonberg@adacore.com>

	* exp_util.adb (Make_Predicate_Call): Use OK_Convert_To when
	applying a predicate check to prevent spurious errors when
	private ancestors are involved.

2018-09-26  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_ch4.adb (Expand_N_Allocator): Ensure that the use of the
	secondary stack does not clash with restriction
	No_Secondary_Stack.
	* exp_ch6.adb (Expand_N_Extended_Return_Statement): Ensure that
	the use of the secondary stack does not clash with restriction
	No_Secondary_Stack.
	* sem_ch5.adb (Analyze_Loop_Statement): Wrap the loop in a block
	prior to analysis in order to either provide a local scope for
	an iterator, or ensure that the secondary stack is properly
	managed.
	(Check_Call): Account for the case where the tree may be
	unanalyzed or contain prior errors.
	(Has_Call_Using_Secondary_Stack): Renamed to Has_Sec_Stack_Call.
	Update all uses of the subprogram.
	(Prepare_Loop_Statement): New routine.

2018-09-26  Javier Miranda  <miranda@adacore.com>

	* sem_res.adb (Resolve_Actuals): If the formal is a class-wide
	type conversion then do not skip resolving and expanding the
	conversion; required to displace the pointer to the object and
	reference the dispatch table associated with the target
	interface type.

2018-09-26  Hristian Kirtchev  <kirtchev@adacore.com>

	* libgnat/g-dynhta.adb (Prepend_Or_Replace): Update the number
	of key-value pairs in the hash table only when adding a brand
	new pair.

2018-09-26  Sergey Rybin  <rybin@adacore.com>

	* doc/gnat_ugn/gnat_utility_programs.rst: Add note about
	processing of aggregate projects in gnatmetric and gnatstub.

2018-09-26  Hristian Kirtchev  <kirtchev@adacore.com>

	* contracts.adb, exp_unst.adb, exp_util.adb, gnat1drv.adb,
	opt.ads, par-prag.adb, sem_ch3.adb, sem_ch5.adb, sem_prag.adb,
	sinfo.ads, snames.ads-tmpl: Minor reformatting.

2018-09-26  Hristian Kirtchev  <kirtchev@adacore.com>

	* gcc-interface/Make-lang.in: Add unit GNAT.Sets to the list of
	front end sources.
	* impunit.adb: Add unit GNAT.Sets to the list of predefined
	units.
	* Makefile.rtl: Add unit GNAT.Sets to the list of non-tasking
	units.
	* libgnat/g-sets.adb: New unit.
	* libgnat/g-sets.ads: New unit.
	* libgnat/g-dynhta.adb (Minimum_Size): Decrease to 8 in order to
	allow for small sets.  Update all occurrences of Table_Locked to
	Iterated.
	(Ensure_Unlocked): Query the number of iterators.
	(Find_Node): Use the supplied equality.
	(Is_Empty): New routine.
	(Lock): Update the number of iterators.
	(Prepend_Or_Replace): Use the supplied equality.
	(Size): Update the return type.
	(Unlock): Update the number of iterators.
	* libgnat/g-dynhta.ads: Update all occurrences of Table_Locked
	to Iterated.  Rename formal subprogram Equivalent_Keys to "=".
	(Bucket_Range_Type, Pair_Count_Type): Remove types.
	(Not_Created, Table_Locked, Iterator_Exhausted): Remove
	exceptions.
	(Hash_Table): Update to store the number of iterators rather
	than locks.
	(Is_Empty): New routine.
	(Size): Update the return type.
	* libgnat/g-lists.adb: Update all occurrences of List_Locked to
	Iterated.
	(Ensure_Unlocked): Query the number of iterators.
	(Length): Remove.
	(Lock): Update the number of iterators.
	(Size): New routine.
	(Unlock): Update the number of iterators.
	* libgnat/g-lists.ads: Update all occurrences of List_Locked to
	Iterated.
	(Element_Count_Type): Remove type.
	(Not_Created, Table_Locked, Iterator_Exhausted): Remove
	exceptions.
	(Linked_List): Update type to store the number of iterators
	rather than locks.
	(Length): Remove.
	(Size): New routine.
	* libgnat/gnat.ads (Bucket_Range_Type): New type.
	(Iterated, Iterator_Exhausted, and Not_Created): New exceptions.

2018-09-26  Javier Miranda  <miranda@adacore.com>

	* checks.adb (Install_Null_Excluding_Check): Do not add
	null-excluding checks when the tree may not be fully decorated.
	This patch cascade errors.

2018-09-26  Gary Dismukes  <dismukes@adacore.com>

	* sem_ch3.adb (Analyze_Object_Declaration): Remove test for
	Comes_From_Source, which prevented implicit conversions from
	being applied to anonymous access-to-subprogram formals in
	constant declartions that arise from instance associations for
	generic formal objects.  Add RM and AARM references to comment.

2018-09-26  Olivier Hainque  <hainque@adacore.com>

	* opt.ads (OpenAcc_Enabled): New flag. False by default. True
	when OpenACC pragmas are requested to be honored, when -fopenacc
	is found on the command line.
	* back_end.adb (Scan_Compiler_Arguments): Set OpenACC_Enabled if
	-fopenacc is seen on the command line.
	* sinfo.adb, sinfo.ads (Is_OpenAcc_Environment): New
	flag/predicate on Loop statements which embed an Acc_Kernels,
	Acc_Parallel or Acc_Data pragma.
	(Is_OpenAcc_Loop): New flag/predicate on Loop statements which
	embed an Acc_Loop pragma.
	(Set_Is_OpenAcc_Environment, Set_Is_OpenAcc_Loop): Setters for
	the new flags.
	* par-prag.adb (Prag): Handle Acc_Data, Acc_Loop, Acc_Parallel
	and Acc_Kernels pragmas.  Nothing to do here, all handled by
	sem_prag.
	* sem_prag.adb (Acc_First, Acc_Next,
	Validate_Acc_Condition_Clause, Validate_Acc_Data_Clause,
	Validate_Acc_Int_Expr_Clause, Validate_Acc_Int_Expr_List_Clause,
	Validate_Acc_Loop_Collapse, Validate_Acc_Loop_Gang,
	Validate_Acc_Loop_Vector, Validate_Acc_Loop_Worker,
	Validate_Acc_Name_Reduction, Validate_Acc_Size_Expressions): New
	helper for Analyze_Pragma, to handle OpenACC pragmas.
	(Analyze_Pragma): Handle Acc_Data, Acc_Loop, Acc_Parallel and
	Acc_Kernels pragmas.
	* sem_ch5.adb (Disable_Constant): Unset Is_True_Constant on
	variable entity, action for ...
	(Disable_Constants): Helper for Analyze_Loop_Statement, to ...
	(Analyze_Loop_Statement): Disable True_Constant on variables
	referenced within an OpenACC environment.
	* snames.ads-tmpl: Declare Name_Ids for the OpenACC directives
	and clauses we can handle. Remove an exraneous whitespace before
	columns, preventing line length overflow in the generated spec
	with Ids now reaching beyond 999.
	* doc/gnat_rm/implementation_defined_pragmas.rst: Document
	pragma Acc_Parallel, Acc_Loop, Acc_Kernels and Acc_Data.
	* gnat_rm.texi: Regenerate.

2018-09-26  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch3.adb (Is_Onown_Limited): A derived type whose parent P
	is a derived limited record is not itself limited if P is a
	derived limited interface.

2018-09-26  Eric Botcazou  <ebotcazou@adacore.com>

	* sem_ch7.adb (Has_Referencer): Remove Top_Level parameter and
	add In_Nested_Instance and
	Has_Outer_Referencer_Of_Non_Subprograms parameters.  Rename
	Has_Non_Subprograms_Referencer variable into
	Has_Referencer_Of_Non_Subprograms and initialize it with the new
	third parameter.  Adjust recursive calls and to the renaming.
	Replace test on Top_Level with test on In_Nested_Instance to
	decide whether to clear the Is_Public flag on entities.
	(Hide_Public_Entities): Adjust call to Has_Referencer.

2018-09-26  Eric Botcazou  <ebotcazou@adacore.com>

	* exp_disp.adb (Expand_Interface_Conversion): Use Present test.
	(Expand_Interface_Thunk): Propagate debug info setting from
	target.
	* exp_util.ads (Find_Interface_Tag): Adjust comment.
	* exp_util.adb (Find_Interface_Tag): Remove assertions of
	success.
	* sem_util.adb (Is_Variable_Size_Record): Only look at
	components and robustify the implementation.
	* fe.h (Find_Interface_Tag): Declare.
	(Is_Variable_Size_Record): Likewise.

2018-09-26  Thomas Quinot  <quinot@adacore.com>

	* exp_util.adb (Make_CW_Equivalent_Type): Propagate bit order
	and scalar storage order from root type to classwide equivalent
	type, to prevent rejection of the equivalent type by the
	freezing circuitry.

2018-09-26  Justin Squirek  <squirek@adacore.com>

	* sem_ch5.adb (Analyze_Iterator_Specification): Add conditional
	to freeze called functions within iterator specifications during
	full analysis.
	(Preanalyze_Range): Minor typo fix.

2018-09-26  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch6.adb (Analyze_Function_Return): If the return type has
	a dynamic_predicate, apply a Predicate_Check to the expression,
	given that it is implicitly converted to the return type.
	Exclude case expressions from the check, because in this context
	the expression is expanded into individual return statements.

2018-09-26  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/decl.c (gnat_to_gnu_entity) <E_Task_Type>: In
	-gnatct mode, process the discriminants only for a definition.

2018-09-26  Eric Botcazou  <ebotcazou@adacore.com>

	* repinfo.adb (List_Record_Layout): Be prepared for JSON output.
	(List_Record_Info): Use the flat representation for record
	subtypes in the JSON format.

2018-09-26  Justin Squirek  <squirek@adacore.com>

	* lib-writ.adb, lib-writ.ads (Write_With_Lines): Add
	documentation and an extra conditional check for RCI units so
	that generated ali files will list the spec only instead of a
	body when a body is not found.

2018-09-26  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/gigi.h (error_gnat_node): Delete.
	* gcc-interface/trans.c (error_gnat_node): Likewise.
	(gigi): Replace it with Current_Error_Node.
	(gnat_to_gnu): Likewise.
	* gcc-interface/utils.c (rest_of_subprog_body_compilation):
	Likewise.
	* gcc-interface/misc.c (internal_error_function): Do not set it.

2018-09-26  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/decl.c (gnat_to_gnu_entity) <E_Variable>: Adjust
	code retrieving the address when a clause has already been
	processed.
	* gcc-interface/trans.c (gnat_to_gnu)
	<N_Attribute_Definition_Clause>: For an object with a Freeze
	node, build a meaningful expression.

2018-09-26  Arnaud Charlet  <charlet@adacore.com>

	* gnat1drv.adb (Adjust_Global_Switches): -gnatd_A sets
	Opt.Disable_ALI_File.
	* debug.adb: Update debug flags documentation.

2018-09-26  Ed Schonberg  <schonberg@adacore.com>

	* contracts.adb (Analyze_Entry_Or_Subprogram_Contract): The
	analysis of preconditions specified by pragmas (rather than
	aspects) is not delayed, and therefore expressions functions
	that are completions do not need special handling during
	expansion.

2018-09-26  Ed Schonberg  <schonberg@adacore.com>

	* exp_unst.adb: Fix handling of up level references for entries.

2018-09-26  Ed Schonberg  <schonberg@adacore.com>

	* contracts.adb (Expand_Subprogram_Contract,
	Process_Preconditions_For): Apply Freeze_Expr_Types to the
	expression for a precondition of an expression function that is
	a completion, when the completion appears in the private part
	and the declaration it completes is in the visible part of the
	same package.
	* freeze.adb (Freeze_Expr_Types): Do not establish the scope of
	the operation if it is already installed, as will be the case
	when called to analyze the contract oc the subprogram (which
	happens when generating code inside the subprogram body).

2018-09-26  Maroua Maalej  <maalej@adacore.com>

	* sem_spark.adb (Check_Param_In, Setup_Parameter_Or_Global):
	Change the operation associated to assigning to an IN parameter.
	In SPARK, IN access-to-variable is an observe operation for a
	function, and borrow operation for a procedure.

2018-09-26  Arnaud Charlet  <charlet@adacore.com>

	* vxlink.adb: Minor reformatting.

2018-09-26  Gary Dismukes  <dismukes@adacore.com>

	* exp_ch9.adb, layout.adb, sem_attr.adb, sem_res.adb: Fix
	miscellaneous typos.

2018-09-26  Jerome Lambourg  <lambourg@adacore.com>

	* vxlink.adb: Kill a CodePeer warning.

2018-09-24  Eric Botcazou  <ebotcazou@adacore.com>

	PR ada/87396
	* fe.h (Get_Attribute_Definition_Clause): Use 'unsigned char' instead
	of 'char' as the type of the second parameter.

2018-09-13  Eric Botcazou  <ebotcazou@adacore.com>

	* Makefile.rtl (arm% linux-gnueabi%): Always set EH_MECHANISM to -arm.

2018-09-13  Eric Botcazou  <ebotcazou@adacore.com>

	PR ada/81103
	* terminals.c: Do not include termio.h.

2018-08-27  Martin Liska  <mliska@suse.cz>

	* gcc-interface/decl.c (update_profile): Use new function
	fndecl_built_in_p and remove check for FUNCTION_DECL if
	possible.
	* gcc-interface/gigi.h (call_is_atomic_load): Likewise.
	* gcc-interface/utils.c (gnat_pushdecl): Likewise.

2018-08-23  Giuliano Belinassi  <giuliano.belinassi@usp.br>

	* exp_unst.ads: Fix typo 'exapnded' to 'expanded'.

2018-08-21  Hristian Kirtchev  <kirtchev@adacore.com>

	* checks.adb, contracts.adb, exp_aggr.adb, exp_attr.adb,
	exp_ch6.adb, exp_ch7.adb, exp_ch9.adb, exp_unst.adb,
	exp_util.adb, freeze.adb, gnatlink.adb, layout.adb,
	lib-writ.adb, lib-xref-spark_specific.adb, sem_ch13.adb,
	sem_ch3.adb, sem_ch6.adb, sem_res.adb, sem_util.adb, sinfo.ads,
	sprint.adb: Minor reformatting.

2018-08-21  Jerome Lambourg  <lambourg@adacore.com>

	* vxlink-bind.adb, vxlink-bind.ads, vxlink-link.adb,
	vxlink-link.ads, vxlink-main.adb, vxlink.adb, vxlink.ads: Add a
	new tool vxlink to handle VxWorks constructors in DKMs.
	* gcc-interface/Makefile.in: add rules to build vxlink

2018-08-21  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch6.adb (Analyze_Subprogram_Body_Helper, Mask_Type):
	Refine the handling of freezing types for expression functions
	that are not completions, when analyzing the generated body for
	the function: the body is inserted at the end of the enclosing
	declarative part, and its analysis may freeze types declared in
	the same scope that have not been frozen yet.

2018-08-21  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch6.adb: Remove Freeze_Expr_Types.
	* freeze.ads, freeze.adb (Freeze_Expr_Types): Moved from
	sem_ch6.adb, and extended to handle other expressions that may
	contain unfrozen types that must be frozen in their proper
	scopes.
	* contracts.adb (Analyze_Entry_Or_Subprogram_Contract): If the
	contract is for the generated body of an expression function
	that is a completion, traverse the expressions for pre- and
	postconditions to freeze all types before adding the contract
	code within the subprogram body.

2018-08-21  Hristian Kirtchev  <kirtchev@adacore.com>

	* sem_ch10.adb: Remove the with and use clause for unit Ghost.
	(Analyze_With_Clause): Do not mark a with clause which mentions
	an ignored Ghost code for elimination.

2018-08-21  Javier Miranda  <miranda@adacore.com>

	* lib-writ.adb (Write_Unit_Information): Handle pragmas removed
	by the expander.

2018-08-21  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch6.adb (Check_Synchronized_Overriding): The conformance
	between an overriding protected operation and the overridden
	abstract progenitor operation requires subtype conformance;
	requiring equality of return types in the case of a function is
	too restrictive and leads to spurious errors when the return
	type is a generic actual.

2018-08-21  Ed Schonberg  <schonberg@adacore.com>

	* exp_ch9.adb (Expand_N_Timed_Entry_Call,
	Expand_Conditional_Entry_Call): Use Reset_Scopes_Of to set
	properly the scope of all entities created in blocks generated
	by the expansion of these constructs.

2018-08-21  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch13.adb (Build_Predicate_Functioss): Apply
	Reset_Quantified_Variables_Scope after predicate function has
	been analyzed, so that the scope can be reset on the generated
	loop statements that have replaced the quantified expressions.

2018-08-21  Bob Duff  <duff@adacore.com>

	* einfo.ads, einfo.adb (Private_View, Shadow_Entities): Remove
	obsolete code.

2018-08-21  Maroua Maalej  <maalej@adacore.com>

	* sem_spark.adb (Check_Call_Statement): Check global and formal
	parameter permissions at call sites.
	(Check_Callable_Body): Assume permissions on globals and
	parameters depending on their modes then analyse the body
	operations.
	(Check_Declaration): Consider both deep (including elementary
	access) object declarations and normal variables. First check
	whether the deep object is of Ownership Aspec True or not, then,
	depending on its initialization, assign the appropriate state.
	Check related to non access type variables deal with
	initialization value permissions.
	(Check_Expression): Check nodes used in the expression being
	analyzed.
	(Check_Globals): Call by Check_Call_Statement to perform the
	check on globals.
	(Check_List): Call Check_Node on each element of the list.
	(Check_Loop_Statement): Check the Iteration_Scheme and loop
	statements.
	(Check_Node): Main traversal procedure to check safe pointer usage.
	(Check_Package_Body): Check subprogram's body.
	(Check_Param_In): Take a formal and an actual parameter and
	Check the permission of every in-mode parameter.
	(Check_Param_Out): Take a formal and an actual parameter and
	check the state of out-mode and in out-mode parameters.
	(Check_Statement): Check statements other than procedure call.
	(Get_Perm, Get_Perm_Or_Tree, Get_Perm_Tree): Find out the state
	related to the given name.
	(Is_Deep): Return True if an object is of access type or has
	subfields of access type.
	(Perm_Error, Perm_Error_Subprogram_End): Add an error message
	whenever the found state on the given name is different from the
	one expected (in the statement being analyzed).
	(Process_Path): Given an operation and a current state, call
	Perm_Error if there is any mismatch.
	(Return_Declarations, Return_Globals, Return_The_Global): Check
	the state of a given name at the end of the subprogram. These
	procedures may change depending on how we shall finally deal
	with globals and the rhs state in a move operation.
	(Set_Perm_Extensions, Set_Perm_Prefixes_Borrow,
	Set_Perm_Prefixes, Setup_Globals, Setup_Parameter_Or_Global,
	Setup_Parameters): Set up the new states to the given node and
	up and down the tree after an operation.
	(Has_Ownership_Aspect_True): This function may disappear later
	when the Ownership Aspect will be implemented in the FE.

2018-08-21  Ed Schonberg  <schonberg@adacore.com>

	* sem_res.adb (Resolve_Call): Resolve correctly a parameterless
	call that returns an access type whose designated type is the
	component type of an array, when the function has no defaulted
	parameters.

2018-08-21  Yannick Moy  <moy@adacore.com>

	* doc/gnat_ugn/building_executable_programs_with_gnat.rst:
	Document entries of the target parametrization file.
	* gnat_ugn.texi: Regenerate.

2018-08-21  Ed Schonberg  <schonberg@adacore.com>

	* sem_attr.adb: Set scope of elaboration flag for 'Access.

2018-08-21  Ed Schonberg  <schonberg@adacore.com>

	* sprint.adb: Add guard on printing aspects.

2018-08-21  Javier Miranda  <miranda@adacore.com>

	* exp_cg.adb (Generate_CG_Output): Handle calls removed by the
	expander.

2018-08-21  Ed Schonberg  <schonberg@adacore.com>

	* layout.adb: Do not set size of access subprogram if unnesting.

2018-08-21  Ed Schonberg  <schonberg@adacore.com>

	* freeze.adb: Remove warnings for access to subprograms when
	unnesting is active.

2018-08-21  Ed Schonberg  <schonberg@adacore.com>

	* exp_aggr.adb (Expand_Array_Aggregate): If the component type
	is limited, the array must be constructed in place, so set flag
	In_Place_Assign_OK_For_Declaration accordingly. This prevents
	improper copying of an array of tasks during initialization.

2018-08-21  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/trans.c (Call_to_gnu): Always suppress an
	unchecked conversion around the actual for an In parameter
	passed by copy.

2018-08-21  Eric Botcazou  <ebotcazou@adacore.com>

	* exp_util.adb (Is_Possibly_Unaligned_Object): For the case of a
	selected component inherited in a record extension and subject
	to a representation clause, retrieve the position and size from
	the original record component.

2018-08-21  Ed Schonberg  <schonberg@adacore.com>

	* sem_util.ads, sem_util.adb (New_External_Entity): Type of
	Suffix_Index must be Int, not Nat, so that a negative value can
	be used to generate a unique name for an external object, as
	specified in Tbuild.New_External_Name.
	(Scope_Within): Handle private type whose completion is a
	synchronized type (For unnesting).
	* itypes.ads, itypes.adb (Create_Itype): Ditto
	* sem_ch3.adb (Constrain_Corresponding_Record): Generate a
	unique name for the created subtype, because there may be
	several discriminated tasks present in the same scope, and each
	needs its distinct corresponding record subtype.

2018-08-21  Yannick Moy  <moy@adacore.com>

	* doc/gnat_ugn/gnat_and_program_execution.rst: Update
	documentation of dimensionality analysis.
	* gnat_ugn.texi: Regenerate.
	* Makefile.rtl, impunit.adb: Consider the new units.
	* libgnat/s-dfmkio.ads, libgnat/s-dfmopr.ads,
	libgnat/s-diflmk.ads: New units based on Float.
	* libgnat/s-dilomk.ads, libgnat/s-dlmkio.ads,
	libgnat/s-dlmopr.ads: New units based on Long_Float.
	* libgnat/s-dmotpr.ads: Rename to libgnat/s-dgmgop.ads and turn
	into an instance of
	System.Dim.Generic_Mks.Generic_Other_Prefixes.
	* libgnat/s-dimmks.ads: Rename to libgnat/s-digemk.ads and turn
	into an instance of System.Dim.Generic_Mks.

2018-08-21  Hristian Kirtchev  <kirtchev@adacore.com>

	* impunit.adb: Add g-lists to the set of non-implementation
	units.
	* libgnat/g-lists.adb, libgnat/g-lists.ads: New unit.
	* Makefile.rtl: Add g-lists to the set of non-tasking units.
	* gcc-interface/Make-lang.in: Add g-lists to the set of files
	used by gnat1.

2018-08-21  Ed Schonberg  <schonberg@adacore.com>

	* exp_ch9.adb (Reset_Scopes): Do not recurse into type
	declarations when resetting the scope of entities declared the
	procedures generated for entry bodies and accept alternatives.
	Use the entity of the procedure declaration, not its body, as
	the new scope.

2018-08-21  Hristian Kirtchev  <kirtchev@adacore.com>

	* einfo.adb (Elaboration_Entity): Include entries and entry
	families in the set of legal entities.
	(Elaboration_Entity_Required): Include entries and entry
	families in the set of legal entities.
	(Set_Elaboration_Entity): Include entries and entry families in
	the set of legal entities.
	(Set_Elaboration_Entity_Required): Include entries and entry
	families in the set of legal entities.
	(Write_Field13_Name): Update the output of attribute
	Elaboration_Entity.
	* einfo.ads: Attributes Elaboration_Entity and
	Elaboration_Entity_Required now apply to entries and entry
	families.

2018-08-21  Arnaud Charlet  <charlet@adacore.com>

	* set_targ.adb: Mark some CodePeer message as Intentional.

2018-08-21  Ed Schonberg  <schonberg@adacore.com>

	* sem_res.adb (Resolve_Call): Force the freezing of an
	expression function that is called to provide a default value
	for a defaulted discriminant in an object initialization.

2018-08-21  Hristian Kirtchev  <kirtchev@adacore.com>

	* libgnat/g-dynhta.adb, libgnat/g-dynhta.ads: New package
	Dynamic_HTable.

2018-08-21  Javier Miranda  <miranda@adacore.com>

	* checks.ads (Determine_Range): Adding documentation.
	* checks.adb (Determine_Range): Don't deal with enumerated types
	with non-standard representation.
	(Convert_And_Check_Range): For conversion of enumeration types
	with non standard representation to an integer type perform a
	direct conversion to the target integer type.

2018-08-21  Piotr Trojanek  <trojanek@adacore.com>

	* lib-xref.ads, lib-xref-spark_specific.adb
	(Enclosing_Subprogram_Or_Library_Package): Now roughtly works
	for pragmas that come from aspect specifications.

2018-08-21  Pierre-Marie de Rodat  <derodat@adacore.com>

	* sa_messages.ads, sa_messages.adb: New source files.

2018-08-03  Pierre-Marie de Rodat  <derodat@adacore.com>

	Reverts
	2018-07-06  Jim Wilson  <jimw@sifive.com>

	* Make-generated.in (treeprs.ads): Use $(GNATMAKE) instead of gnatmake.
	(einfo.h, sinfo.h, stamp-snames, stamp-nmake): Likewise.
	* gcc-interface/Makefile.in (xoscons): Likewise.

2018-07-31  Alexandre Oliva  <oliva@adacore.com>
	    Olivier Hainque  <hainque@adacore.com>

	* gcc-interface/trans.c: Include debug.h.
	(file_map): New static variable.
	(gigi): Set it.  Create decl_to_instance_map when needed.
	(Subprogram_Body_to_gnu): Pass gnu_subprog_decl to...
	(Sloc_to_locus): ... this.  Add decl parm, map it to instance.
	* gcc-interface/gigi.h (Sloc_to_locus): Adjust declaration.

2018-07-31  Arnaud Charlet  <charlet@adacore.com>

	* clean.adb, gnatchop.adb, gnatfind.adb, gnatls.adb,
	gnatmake.ads, gnatxref.adb, make.adb, make.ads, make_util.ads,
	sfn_scan.adb, vxaddr2line.adb, xeinfo.adb, xoscons.adb,
	xr_tabls.adb, xref_lib.adb: Address CodePeer messages.

2018-07-31  Arnaud Charlet  <charlet@adacore.com>

	* gnatlink.adb: Fix potential Constraint_Error if
	Library_Version is too long.

2018-07-31  Arnaud Charlet  <charlet@adacore.com>

	* sem_elab.adb: Remove duplicate condition detected by CodePeer.

2018-07-31  Ed Schonberg  <schonberg@adacore.com>

	* exp_unst.adb (Subp_Index): In the case of a protected
	operation, the relevant entry is the generated
	protected_subprogram_body into which the original body is
	rewritten. Assorted cleanup and optimizations.

2018-07-31  Ed Schonberg  <schonberg@adacore.com>

	* exp_attr.adb (Expand_Attribute, case Fixed_Value): Set the
	base type of the result to ensure that proper overflow and range
	checks are generated.  If the target is a fixed-point tyoe,
	generate the required overflow and range checks explicitly,
	rather than relying on Apply_Type_Conversion_Checks, which might
	simply set the Do_Range_Check flag and rely on the backend to
	add the check.

2018-07-31  Hristian Kirtchev  <kirtchev@adacore.com>

	* sem_res.adb (Resolve_Call): Establish a transient scope to
	manage the secondary stack when the designated type of an
	access-to-subprogram requires it.

2018-07-31  Ed Schonberg  <schonberg@adacore.com>

	* exp_ch7.adb (Check_Unnesting_Elaboration_Code): To find local
	subprograms in the elaboration code for a package body, recurse
	through nested statement sequences because a compiler-generated
	procedure may appear within a condition statement.

2018-07-31  Ed Schonberg  <schonberg@adacore.com>

	* exp_ch6.adb (Expand_Protected_Subprogram_Call): Handle
	properly a protected call that includes a default parameter that
	is a call to a protected function of the same type.

2018-07-31  Justin Squirek  <squirek@adacore.com>

	* lib-writ.adb (Write_With_Lines): Modfiy the generation of
	dependencies within ali files so that source unit bodies are
	properly listed even if said bodies are missing.  Perform legacy
	behavior in GNATprove mode.
	* lib-writ.ads: Modify documentation to reflect current behavior.

2018-07-31  Eric Botcazou  <ebotcazou@adacore.com>

	* libgnarl/s-osinte__solaris.ads (upad64_t): New private type.
	(mutex_t): Use it for 'lock' and 'data' components.
	(cond_t): Likewise for 'data' and use single 'flags' component.

2018-07-31  Justin Squirek  <squirek@adacore.com>

	* exp_ch5.adb (Make_Field_Assign): Force temporarily generated
	objects for assignment of overlaid user objects to be renamings
	instead of constant declarations.

2018-07-31  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_ch9.adb (Analyze_Pragmas): New routine.
	(Build_Private_Protected_Declaration): Code clean up. Relocate
	relevant aspects and pragmas from the stand-alone body to the
	newly created spec.  Explicitly analyze any pragmas that have
	been either relocated or produced by the analysis of the
	aspects.
	(Move_Pragmas): New routine.
	* sem_prag.adb (Find_Related_Declaration_Or_Body): Recognize the
	case where a pragma applies to the internally created spec for a
	stand-along subprogram body declared in a protected body.

2018-07-31  Gary Dismukes  <dismukes@adacore.com>

	* exp_ch6.adb (Expand_N_Extended_Return_Statement): Replace
	calls to Current_Scope in three assertions with calls to
	Current_Subprogram.

2018-07-31  Ed Schonberg  <schonberg@adacore.com>

	* sem_eval.adb (Check_Non_Static_Context): Do not warn on an
	integer literal greater than the upper bound of
	Universal_Integer'Last when expansion is disabled, to avoid a
	spurious warning over ranges involving 64-bit modular types.

2018-07-31  Arnaud Charlet  <charlet@adacore.com>

	* einfo.adb (Write_Entity_Flags): Also print
	Is_Activation_Record flag.

2018-07-31  Piotr Trojanek  <trojanek@adacore.com>

	* exp_aggr.adb, exp_ch4.adb, exp_ch6.adb, lib-xref.adb,
	repinfo.adb, sem_ch9.adb: Minor replace Ekind membership tests
	with a wrapper routine.

2018-07-31  Piotr Trojanek  <trojanek@adacore.com>

	* ali.adb (Known_ALI_Lines): Remove 'F' as a prefix for lines
	related to the FORMAL analysis done by GNATprove.

2018-07-31  Javier Miranda  <miranda@adacore.com>

	* sem.ads (Inside_Preanalysis_Without_Freezing): New global
	counter.
	* sem.adb (Semantics): This subprogram has now the
	responsibility of resetting the counter before analyzing a unit,
	and restoring its previous value before returning.
	* freeze.adb (Freeze_Entity): Do not freeze if we are
	preanalyzing without freezing.
	* sem_res.adb (Preanalyze_And_Resolve): Set & restore
	In_Preanalysis_Without_Freezing.

2018-07-31  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch4.adb (Traverse_Homonyms): Consider generic actuals that
	may rename a matching class-wide operation only if the renaming
	declaration for that actual is in an enclosing scope (i.e.
	within the corrresponding instance).

2018-07-31  Hristian Kirtchev  <kirtchev@adacore.com>

	* checks.adb, contracts.adb, exp_aggr.adb, exp_ch5.adb,
	exp_disp.adb, make.adb, sem_ch4.adb, sem_eval.adb, sem_res.adb,
	usage.adb: Minor reformatting.

2018-07-31  Bob Duff  <duff@adacore.com>

	* sem_res.adb (Resolve_Allocator): Do not complain about the
	implicit allocator that occurs in the expansion of a return
	statement for a build-in-place function.

2018-07-20  Martin Sebor  <msebor@redhat.com>

	PR middle-end/82063
	* gcc-interface/misc.c (gnat_handle_option): Change function argument
	to HOST_WIDE_INT.

2018-07-17  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/decl.c (choices_to_gnu): Rename parameters.  Deal with
	an operand of Character type.  Factor out range generation to the end.
	Check that the bounds are literals and convert them to the type of the
	operand before building the ranges.
	* gcc-interface/utils.c (make_dummy_type): Minor tweak.
	(make_packable_type): Propagate TYPE_DEBUG_TYPE.
	(maybe_pad_type): Likewise.

2018-07-17  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch4.adb (Try_Object_Operation): Handle properly a prefixed call
	in an instance, when the generic parameters include an interface type
	and a abstract operation of that type, and the actuals in the instance
	include an interface type and a corresponding abstract operation of it,
	with a different name than the corresponding generic subprogram
	parameter.

2018-07-17  Arnaud Charlet  <charlet@adacore.com>

	* sem_eval.adb (Rewrite_In_Raise_CE): Keep the original reason in more
	cases.

2018-07-17  Arnaud Charlet  <charlet@adacore.com>

	* checks.adb (Apply_Division_Check): Add provision for floating-point
	checks.

2018-07-17  Ed Schonberg  <schonberg@adacore.com>

	* exp_aggr.adb (Component_OK_For_Backend): If an array component of the
	enclosing record has a bound that is out of range (and that has been
	rewritten as a raise statement) the aggregate is not OK for any back
	end, and should be expanded into individual assignments.

2018-07-17  Piotr Trojanek  <trojanek@adacore.com>

	* atree.adb (Relocate_Node): Simplify with Is_Rewrite_Substitution.

2018-07-17  Piotr Trojanek  <trojanek@adacore.com>

	* sem_util.ads (Denotes_Same_Object): Likewise.
	* sem_warn.adb (Warn_On_Overlapping_Actuals): Fix RM rule references.

2018-07-17  Eric Botcazou  <ebotcazou@adacore.com>

	* exp_disp.adb (Make_Tags): When the type has user-defined primitives,
	build the access type that is later used by Build_Get_Prim_Op_Address
	as pointing to a subtype of Ada.Tags.Address_Array.

2018-07-17  Patrick Bernardi  <bernardi@adacore.com>

	* libgnat/s-memory__mingw.adb: Remove.
	* Makefile.rtl: Remove s-memory.adb target pair from the Cygwin/Mingw32
	section.

2018-07-17  Hristian Kirtchev  <kirtchev@adacore.com>

	* frontend.adb (Frontend): The removal of ignored Ghost code must be
	the last semantic operation performed on the tree.

2018-07-17  Hristian Kirtchev  <kirtchev@adacore.com>

	* frontend.adb (Frontend): Update the call to Register_Config_Switches.
	* inline.ads: Add new component Config_Switches to record
	Pending_Body_Info which captures the configuration state of the pending
	body.  Remove components Version, Version_Pragma, SPARK_Mode, and
	SPARK_Mode_Pragma from record Pending_Body_Info because they are
	already captured in component Config_Switches.
	* opt.adb (Register_Opt_Config_Switches): Rename to
	Register_Config_Switches.
	(Restore_Opt_Config_Switches): Rename to Restore_Config_Switches.
	(Save_Opt_Config_Switches): Rename to Save_Config_Switches. This
	routine is now a function, and returns the saved configuration state as
	an aggregate to avoid missing an attribute.
	(Set_Opt_Config_Switches): Rename to Set_Config_Switches.
	* opt.ads (Register_Opt_Config_Switches): Rename to
	Register_Config_Switches.
	(Restore_Opt_Config_Switches): Rename to Restore_Config_Switches.
	(Save_Opt_Config_Switches): Rename to Save_Config_Switches. This
	routine is now a function.
	(Set_Opt_Config_Switches): Rename to Set_Config_Switches.
	* par.adb (Par): Update the calls to configuration switch-related
	subprograms.
	* sem.adb (Semantics): Update the calls to configuration switch-related
	subprograms.
	* sem_ch10.adb (Analyze_Package_Body_Stub): Update the calls to
	configuration switch-related subprograms.
	(Analyze_Protected_Body_Stub): Update the calls to configuration
	switch-related subprograms.
	(Analyze_Subprogram_Body_Stub): Update calls to configuration
	switch-related subprograms.
	* sem_ch12.adb (Add_Pending_Instantiation): Update the capture of
	pending instantiation attributes.
	(Inline_Instance_Body): Update the capture of pending instantiation
	attributes.  It is no longer needed to explicitly manipulate the SPARK
	mode.
	(Instantiate_Package_Body): Update the restoration of the context
	attributes.
	(Instantiate_Subprogram_Body): Update the restoration of context
	attributes.
	(Load_Parent_Of_Generic): Update the capture of pending instantiation
	attributes.
	(Set_Instance_Env): Update the way relevant configuration attributes
	are saved and restored.

2018-07-17  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/decl.c (gnat_to_gnu_entity) <E_Variable>: Deal with
	more rvalues in the expression of a renaming.

2018-07-17  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/ada-tree.h (TYPE_RETURN_BY_DIRECT_REF_P): Define for
	METHOD_TYPE too.
	(TYPE_RETURN_UNCONSTRAINED_P): Likewise.
	(TYPE_CI_CO_LIST): Likewise.
	* gcc-interface/gigi.h (is_cplusplus_method): Delete.
	(fntype_same_flags_p): Adjust comment.
	* gcc-interface/decl.c (Has_Thiscall_Convention): Delete.
	(gnat_to_gnu_entity) <E_Subprogram_Type>: Do not set the "thiscall"
	attribute directly.
	(is_cplusplus_method): Make static and adjust head comment.
	(gnat_to_gnu_param): Return a pointer for the "this" parameter of
	C++ constructors.
	(gnat_to_gnu_subprog_type): Turn imported C++ constructors into their
	callable form.  Generate a METHOD_TYPE node for imported C++ methods.
	Set param_list at the very end of the processing.
	(substitute_in_type) <METHOD_TYPE>: New case.
	* gcc-interface/misc.c (gnat_print_type) <METHOD_TYPE>: Likewise.
	(gnat_type_hash_eq): Accept METHOD_TYPE.
	* gcc-interface/trans.c (Identifier_to_gnu): Deal with METHOD_TYPE.
	(Attribute_to_gnu): Likewise.
	(Call_to_gnu): Likewise.
	(process_freeze_entity): Likewise.
	* gcc-interface/utils.c (create_subprog_decl): Adjust head comment.
	(fntype_same_flags_p): Likewise.

2018-07-17  Piotr Trojanek  <trojanek@adacore.com>

	* inline.adb (Expand_Inlined_Call): Remove extra parentheses.

2018-07-17  Eric Botcazou  <ebotcazou@adacore.com>

	* exp_disp.adb (Gen_Parameters_Profile): Make the _Init parameter an
	In/Out parameter.
	(Set_CPP_Constructors): Adjust comment accordingly.

2018-07-17  Bob Duff  <duff@adacore.com>

	* exp_disp.adb (Build_Class_Wide_Check): Return early if the
	precondition is supposed to be ignored.

2018-07-17  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch6.adb (Check_Untagged_Equality): Extend check to operations
	declared in the same scope as the operand type, when that scope is a
	procedure.

2018-07-17  Ed Schonberg  <schonberg@adacore.com>

	* exp_unst.adb (Unnest_Subprograms): Do nothing if the expander is not
	active.  Don't use Get_Actual_Subtype for record subtypes.  Ignore
	rewritten identifiers and uplevel references to bounds of types that
	come from the original type reference.

2018-07-17  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_ch13.adb, exp_ch7.adb, exp_unst.adb, freeze.adb,
	libgnat/s-os_lib.adb, sem_ch3.adb, sem_ch3.ads, sem_ch5.adb,
	sem_eval.adb, sem_res.adb, sem_util.adb: Minor reformatting.

2018-07-17  Javier Miranda  <miranda@adacore.com>

	* exp_ch13.adb (Expand_N_Freeze_Entity): Handle subtype declared for an
	iterator.
	* freeze.adb (Freeze_Expression): Handle freeze of an entity defined
	outside of a subprogram body. This case was previously handled during
	preanalysis; the frozen entities were remembered and left pending until
	we continued freezeing entities outside of the subprogram. Now, when
	climbing the parents chain to locate the correct placement for the
	freezeing node, we check if the entity can be frozen and only when no
	enclosing node is marked as Must_Not_Freeze the entity is frozen.
	* sem_ch3.ads (Preanalyze_Default_Expression): Declaration moved to the
	package body.
	* sem_ch3.adb (Preanalyze_Default_Expression): Code adjusted to invoke
	the new subprogram Preanalyze_With_Freezing_And_Resolve.
	* sem_ch6.adb (Preanalyze_Formal_Expression): New subprogram.
	(Analyze_Expression_Function, Process_Formals): Invoke
	Preanalyze_Formal_Expression instead of Preanalyze_Spec_Expression
	since the analysis of the formals may freeze entities.
	(Analyze_Subprogram_Body_Helper): Skip building the body of the
	class-wide clone for eliminated subprograms.
	* sem_res.ads, sem_res.adb (Preanalyze_And_Resolve): New subprogram.
	Its code is basically the previous version of this routine but extended
	with an additional parameter which is used to specify if during
	preanalysis we are allowed to freeze entities.  If the new parameter is
	True then the subtree root node is marked as Must_Not_Freeze and no
	entities are frozen during preanalysis.
	(Preanalyze_And_Resolve): Invokes the internal version of
	Preanalyze_And_Resolve without entity freezing.
	(Preanalyze_With_Freezing_And_Resolve): Invokes the internal version of
	Prenalyze_And_Resolve with freezing enabled.

2018-07-17  Piotr Trojanek  <trojanek@adacore.com>

	* einfo.ads, libgnat/g-comlin.ads: Minor change "ie" to "i.e." in docs
	and comments.

2018-07-17  Justin Squirek  <squirek@adacore.com>

	* libgnat/s-os_lib.adb (Argument_String_To_List): Fix trimming of
	whitespace.

2018-07-17  Hristian Kirtchev  <kirtchev@adacore.com>

	* sem_prag.adb (Has_Visible_State): Do not consider constants as
	visible state because it is not possible to determine whether a
	constant depends on variable input.
	(Propagate_Part_Of): Add comment clarifying the behavior with respect
	to constant.

2018-07-17  Yannick Moy  <moy@adacore.com>

	* gnat1drv.adb (Gnat1drv): Do not issue warning about exception not
	being propagated in GNATprove mode.

2018-07-17  Dmitriy Anisimkov  <anisimko@adacore.com>

	* libgnat/g-socket.adb, libgnat/g-socket.ads: Reorganize and make
	public components of Inet_Addr_Type. Introduce public binary
	operations.

2018-07-17  Javier Miranda  <miranda@adacore.com>

	* exp_ch7.adb (Make_Transient_Block): When determining whether an
	enclosing scope already handles the secondary stack, take into account
	transient blocks nested in a block that do not manage the secondary
	stack and are located within a loop.

2018-07-17  Ed Schonberg  <schonberg@adacore.com>

	* sem_util.adb (Enclosing_Subprogram): Protected entries and task
	entries must be treated separately: task entries are within the
	enclosing subprogram of the task type, while protected entries are
	transformed into the corresponding Protected_Body_Subprogram, which is
	the enclosing_subprogram of any subprogram declared within the entry
	body.

2018-07-17  Hristian Kirtchev  <kirtchev@adacore.com>

	* doc/gnat_ugn/building_executable_programs_with_gnat.rst: Add missing
	sections on -gnatH and -gnatJ compiler switches.
	* gnat_ugn.texi: Regenerate.

2018-07-17  Hristian Kirtchev  <kirtchev@adacore.com>

	* alloc.ads: Update the allocation metrics of the ignored Ghost nodes
	table.
	* atree.adb: Add a soft link for a procedure which is invoked whenever
	an ignored Ghost node or entity is created.
	(Change_Node): Preserve relevant attributes which come from the Flags
	table.
	(Mark_New_Ghost_Node): Record a newly created ignored Ghost node or
	entity.
	(Rewrite): Preserve relevant attributes which come from the Flags
	table.
	(Set_Ignored_Ghost_Recording_Proc): New routine.
	* atree.ads: Define an access-to-suprogram type for a soft link which
	records a newly created ignored Ghost node or entity.
	(Set_Ignored_Ghost_Recording_Proc): New routine.
	* ghost.adb: Remove with and use clause for Lib.  Remove table
	Ignored_Ghost_Units.  Add new table Ignored_Ghost_Nodes.
	(Add_Ignored_Ghost_Unit): Removed.
	(Initialize): Initialize the table which stores ignored Ghost nodes.
	Set the soft link which allows Atree.Mark_New_Ghost_Node to record an
	ignored Ghost node.
	(Is_Ignored_Ghost_Unit): Use the ultimate original node when checking
	an eliminated ignored Ghost unit.
	(Lock): Release and lock the table which stores ignored Ghost nodes.
	(Mark_And_Set_Ghost_Assignment): Record rather than propagate ignored
	Ghost nodes.
	(Mark_And_Set_Ghost_Procedure_Call): Record rather than propagate
	ignored Ghost nodes.
	(Mark_Ghost_Clause): Record rather than propagate ignored Ghost nodes.
	(Mark_Ghost_Declaration_Or_Body): Record rather than propagate ignored
	Ghost nodes.
	(Mark_Ghost_Pragma): Record rather than propagate ignored Ghost nodes.
	(Propagate_Ignored_Ghost_Code): Removed.
	(Record_Ignored_Ghost_Node): New routine.
	(Remove_Ignored_Ghost_Code): Reimplemented.
	(Remove_Ignored_Ghost_Node): New routine.
	(Ultimate_Original_Node): New routine.
	* ghost.ads (Check_Ghost_Completion): Removed.
	* sem_ch8.adb (Analyze_Use_Package): Remove obsolete code. Mark a use
	package clause as ignored Ghost if applicable.
	* sem_util.adb (Is_Body_Or_Package_Declaration): Reimplemented.

2018-07-17  Javier Miranda  <miranda@adacore.com>

	* sem_ch5.adb (Has_Call_Using_Secondary_Stack): Moved to library level
	to reuse it.
	(Analyze_Loop_Statement): Wrap the loop in a block when the evaluation
	of the loop iterator relies on the secondary stack.

2018-07-17  Piotr Trojanek  <trojanek@adacore.com>

	* sem_util.adb (Next_Actual): If the parent is a N_Null_Statement,
	which happens for inlined calls, then fetch the next actual from the
	original AST.

2018-07-17  Ed Schonberg  <schonberg@adacore.com>

	* einfo.ads: Update documentation for Scalar_Range.

2018-07-17  Piotr Trojanek  <trojanek@adacore.com>

	* lib-xref-spark_specific.adb (Create_Heap): Attach the HEAP entity to
	the Standard package.

2018-07-17  Piotr Trojanek  <trojanek@adacore.com>

	* einfo.adb (Is_Wrapper_Package): Remove extra parentheses.

2018-07-17  Ed Schonberg  <schonberg@adacore.com>

	* sem_util.adb (Enclosing_Subprogram): Handle properly entries, and
	synchronized types that are completions of limited types or private
	extensions.
	(Scope_Within): Handle properly accept statements in task bodies.

2018-07-17  Hristian Kirtchev  <kirtchev@adacore.com>

	* sem_prag.adb (Has_Visible_State): Do not consider generic formals
	because they are not part of the visible state space. Add constants to
	the list of acceptable visible states.
	(Propagate_Part_Of): Do not consider generic formals when propagating
	the Part_Of indicator.
	* sem_util.adb (Entity_Of): Do not follow renaming chains which go
	through a generic formal because they are not visible for SPARK
	purposes.
	* sem_util.ads (Entity_Of): Update the comment on usage.

2018-07-17  Ed Schonberg  <schonberg@adacore.com>

	* sem_util.adb (Gather_Components): A discriminant of an ancestor may
	have been constrained by a later ancestor, so when looking for the
	value of that hidden discriminant we must examine the stored constraint
	of other ancestors than the immediate parent type.

2018-07-17  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_ch6.adb (Build_Heap_Or_Pool_Allocator): Ensure that scoping
	constructs and entities within receive new entities when replicating a
	tree.
	(Expand_N_Extended_Return_Statement): Ensure that scoping constructs
	and entities within receive new entities when replicating a tree.
	* sem_util.adb (New_Copy_Tree): Add new formal Scopes_In_EWA_OK.
	(Visit_Entity): Visit entities within scoping constructs inside
	expression with actions nodes when requested by the caller. Add blocks,
	labels, and procedures to the list of entities which need replication.
	* sem_util.ads (New_Copy_Tree): Add new formal Scopes_In_EWA_OK. Update
	the comment on usage.

2018-07-17  Arnaud Charlet  <charlet@adacore.com>

	* doc/gnat_ugn/about_this_guide.rst,
	doc/gnat_ugn/gnat_and_program_execution.rst: Remove references to gcov.
	* gnat_ugn.texi: Regenerate.

2018-07-16  Hristian Kirtchev  <kirtchev@adacore.com>

	* contracts.adb (Analyze_Contracts): Add specialized processing for
	package instantiation contracts.
	(Analyze_Package_Contract): Remove the verification of a missing
	Part_Of indicator.
	(Analyze_Package_Instantiation_Contract): New routine.
	* contracts.ads (Analyze_Package_Contract): Update the comment on
	usage.
	* sem_prag.adb (Check_Missing_Part_Of): Ensure that the entity of the
	instance is being examined when trying to determine whether a package
	instantiation needs a Part_Of indicator.

2018-07-16  Hristian Kirtchev  <kirtchev@adacore.com>

	* einfo.adb, exp_ch7.adb, exp_ch9.adb, exp_unst.adb, inline.adb,
	sem.adb, sem_ch12.adb, sem_ch13.adb, sem_ch3.adb, sem_eval.adb,
	sem_util.adb: Minor reformatting.

2018-07-16  Arnaud Charlet  <charlet@adacore.com>

	* frontend.adb: Only unnest subprograms if no previous errors were
	 detected.

2018-07-16  Ed Schonberg  <schonberg@adacore.com>

	* exp_ch7.adb (Check_Unnesting_Elaboration_Code): Handle loops that
	contain blocks in the elaboration code for a package body. Create the
	elaboration subprogram wrapper only if there is a subprogram
	declaration in a block or loop.

2018-07-16  Ed Schonberg  <schonberg@adacore.com>

	* exp_ch4.adb (Expand_Set_Membership): Use New_Copy_Tree to perform a
	deep copy of the left operand when building each conjuct of the
	expanded membership operation, to avoid sharing nodes between them.
	This sharing interferes with the unnesting machinery and is generally
	undesirable.

2018-07-16  Ed Schonberg  <schonberg@adacore.com>

	* exp_unst.adb (Visit_Node): Handle 'Address references that are
	calls.

2018-07-16  Ed Schonberg  <schonberg@adacore.com>

	* exp_unst.adb (Visit_Node): Handle the semantic of Storage_Pool field
	in relevant nodes: Allocate, Free, and return statements.

2018-07-16  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch12.adb (Analyze_Package_Instantiation): Handle properly an
	instance that carries an aspect Default_Storage_Pool that overrides a
	default storage pool that applies to the generic unit. The aspect in
	the generic unit was removed before copying it in the instance, rather
	than removing it from the copy of the aspects that are appended to the
	aspects in the instance.

2018-07-16  Ed Schonberg  <schonberg@adacore.com>

	* einfo.adb (Set_Is_Uplevel_Referenced_Entity): Flag can appear on
	loop parameters.
	* exp_ch7.adb (Check_Unnesting_Elaboration_Code): Handle subprogram
	bodies.
	* exp_ch9.adb (Reset_Scopes_To): Set the scopes of entities local to an
	entry body to be the corresponding generated subprogram, for correct
	analysis of uplevel references.
	* exp_unst.adb (Visit_Node): Handle properly binary and unary operators
	Ignore pragmas, fix component associations.
	(Register_Subprograms): Subprograms in synchronized types must be
	treated as reachable.

2018-07-16  Hristian Kirtchev  <kirtchev@adacore.com>

	* sem_util.adb (Check_No_Hidden_State): Ignore internally-generated
	states and variables.

2018-07-16  Piotr Trojanek  <trojanek@adacore.com>

	* sinfo.ads, sinfo.adb (Withed_Body): Remove.
	(Set_Withed_Body): Remove.

2018-07-16  Piotr Trojanek  <trojanek@adacore.com>

	* sem.adb (Walk_Library_Items): Skip units with configuration pragmas
	when printing debug info.

2018-07-16  Piotr Trojanek  <trojanek@adacore.com>

	* sem.adb (Walk_Library_Items): Reuse local constant.
	(Is_Subunit_Of_Main): Turn condition to positive and flip the
	IF-THEN-ELSE branches; avoid potentially ineffective assignment to the
	Lib variable.

2018-07-16  Piotr Trojanek  <trojanek@adacore.com>

	* sem.adb (Walk_Library_Items): Deconstruct dead code.

2018-07-16  Ed Schonberg  <schonberg@adacore.com>

	* exp_ch4.adb (Expand_N_Op_Xor): Use common routine
	Expand_Nonbinary_Modular_Op.  Needed for unnesting.

2018-07-16  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch3.adb (Inherit_Predicate_Flags): A non-discrete type may have a
	static predicate (for example True) but has no
	static_discrete_predicate.

2018-07-16  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_attr.adb (Build_Record_VS_Func): Handle corner cases dealing with
	class-wide types and record extensions.

2018-07-16  Justin Squirek  <squirek@adacore.com>

	* sem_eval.adb (Eval_Integer_Literal): Add exception for avoiding
	checks on expanded literals within if and case expressions.

2018-07-16  Hristian Kirtchev  <kirtchev@adacore.com>

	* libgnat/s-wchwts.adb (Wide_String_To_String): Use the appropriate
	longest sequence factor. Code clean up.
	(Wide_Wide_String_To_String): Use the appropriate longest sequence
	factor.  Code clean up.

2018-07-16  Javier Miranda  <miranda@adacore.com>

	* sem_ch13.adb (Analyze_Attribute_Definition_Clause): Report an error
	on Bit_Order when defined for a record extension.

2018-07-16  Arnaud Charlet  <charlet@adacore.com>

	* libgnat/s-objrea.ads: Minor code clean up.

2018-07-16  Piotr Trojanek  <trojanek@adacore.com>

	* sem_ch3.adb (Process_Discriminants): Adjust reference to the SPARM RM
	rule.

2018-07-16  Arnaud Charlet  <charlet@adacore.com>

	* adaint.c (__gnat_set_file_time_name): Code clean up.

2018-07-16  Javier Miranda  <miranda@adacore.com>

	* inline.adb (Build_Body_To_Inline): Minor code reorganization that
	ensures that calls to function Has_Single_Return() pass a decorated
	tree.
	(Has_Single_Return.Check_Return): Peform checks on entities (instead on
	relying on their characters).

2018-07-16  Javier Miranda  <miranda@adacore.com>

	* exp_ch5.adb (Expand_Iterator_Loop_Over_Array): Code cleanup. Required
	to avoid generating an ill-formed tree that confuses gnatprove causing
	it to blowup.

2018-07-16  Yannick Moy  <moy@adacore.com>

	* inline.adb (Has_Single_Return): Rewrap comment.

2018-07-16  Eric Botcazou  <ebotcazou@adacore.com>

	* einfo.ads: Minor tweak in comment.

2018-07-16  Javier Miranda  <miranda@adacore.com>

	* sem_ch4.adb (Analyze_Membership_Op): Code cleanup.

2018-07-16  Javier Miranda  <miranda@adacore.com>

	* exp_attr.adb (Expand_N_Attribute_Reference ['Count]): Do not
	transform 'Count into a function call if the current scope has been
	eliminated.

2018-07-16  Javier Miranda  <miranda@adacore.com>

	* sem_util.ads, sem_util.adb (Has_Prefix): Move this function to the
	public part of this package.

2018-07-16  Yannick Moy  <moy@adacore.com>

	* sem_res.adb (Resolve_Call): Do not inline calls inside
	compiler-generated functions translated as predicates in GNATprove.

2018-07-16  Gary Dismukes  <dismukes@adacore.com>

	* exp_ch4.adb (Expand_N_Allocator): Test for Storage_Pool being RTE in
	addition to the existing test for no Storage_Pool as a condition
	enabling generation of the call to Check_Standard_Allocator when the
	restriction No_Standard_Allocators_After_Elaboration is active.
	* libgnat/s-elaall.ads (Check_Standard_Allocator): Correct comment to
	say that Storage_Error will be raised (rather than Program_Error).
	* libgnat/s-elaall.adb (Check_Standard_Allocator): Raise Storage_Error
	rather than Program_Error when Elaboration_In_Progress is False.

2018-07-16  Gary Dismukes  <dismukes@adacore.com>

	* sem_eval.adb: Fix spelling for compile-time-known.

2018-07-16  Hristian Kirtchev  <kirtchev@adacore.com>

	* sem_eval.adb (Compile_Time_Known_Value): Add a guard which prevents
	the compiler from entering infinite recursion when trying to determine
	whether a deferred constant has a compile time known value, and the
	initialization expression of the constant is a reference to the
	constant itself.

2018-07-16  Nicolas Roche  <roche@adacore.com>

	* libgnat/a-strunb.adb, libgnat/a-strunb__shared.adb: Adjust growth
	factor from 1/32 to 1/2 for Unbounded_String.

2018-07-13  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/lang.opt (funsigned-char): New option.
	* gcc-interface/misc.c (gnat_handle_option): Accept it.
	* gcc-interface/utils.c (finish_character_type): Tweak comment.

2018-07-07  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/decl.c (gnat_to_gnu_entity): Add GNAT_DECL local
	variable and use it throughout.
	<E_Variable>: If the nominal subtype of the object is unconstrained,
	compute the Ada size separately and put in on the padding type if the
	size is not fixed.
	<E_Record_Type>: Minor tweak.
	* gcc-interface/misc.c (gnat_type_max_size): Rename max_size_unit
	into max_size_unit throughout.

2018-07-07  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/gigi.h (add_decl_expr): Adjust prototype.
	* gcc-interface/decl.c (gnat_to_gnu_entity): Remove useless test.
	* gcc-interface/trans.c (add_stmt_with_node): Remove exceptions.
	(add_decl_expr): Change type of second parameter and rename it.
	(renaming_from_instantiation_p): New function moved from...
	(set_expr_location_from_node): Test for exceptions here and add one
	for actual subtypes built for unconstrained composite actuals.
	* gcc-interface/utils.c (renaming_from_instantiation_p): ...here.

2018-07-07  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/trans.c (lvalue_required_p): Remove ALIASED parameter
	and adjust recursive calls.
	(Identifier_to_gnu): Adjust calls to lvalue_required_p.
	(gnat_to_gnu): Likewise.

2018-07-07  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/decl.c (gnat_to_gnu_param): Minor tweak.
	(gnat_to_gnu_subprog_type): New pure_flag local variable.  Set it for
	a pure Ada function with a by-ref In parameter.  Propagate it onto the
	function type by means of the TYPE_QUAL_RESTRICT flag.
	* gcc-interface/utils.c (finish_subprog_decl): Set DECL_PURE_P if the
	function type has the TYPE_QUAL_RESTRICT flag set.

2018-07-06  Jim Wilson  <jimw@sifive.com>

	* Makefile.rtl: Add riscv*-linux* support.
	* libgnarl/s-linux__riscv.ads: New.
	* libgnat/system-linux-riscv.ads: New.

	* Make-generated.in (treeprs.ads): Use $(GNATMAKE) instead of gnatmake.
	(einfo.h, sinfo.h, stamp-snames, stamp-nmake): Likewise.
	* gcc-interface/Makefile.in (xoscons): Likewise.

2018-07-06  Sebastian Huber  <sebastian.huber@embedded-brains.de>

	* libgnat/system-rtems.ads (Frontend_Exceptions): Set to False.
	(ZCX_By_Default): Set to True.

2018-07-02  Martin Liska  <mliska@suse.cz>

	* gnatvsn.ads: Bump Library_Version to 9.

2018-06-12  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/ada-tree.h (TYPE_RETURN_BY_DIRECT_REF_P): Change from
	using TYPE_LANG_FLAG_4 to using TYPE_LANG_FLAG_0.
	(TYPE_ALIGN_OK): Move around.
	(TYPE_PADDING_FOR_COMPONENT): Remove superfluous parentheses.
	* gcc-interface/decl.c (change_qualified_type): Move to...
	(gnat_to_gnu_entity): Adjust comment.
	* gcc-interface/gigi.h (change_qualified_type): ...here; make inline.
	(ceil_pow2): Use ceil_log2.
	* gcc-interface/utils.c (finish_subprog_decl): Add couple of comments
	and do not set TREE_SIDE_EFFECTS.
	(handle_noreturn_attribute): Use change_qualified_type.

2018-06-12  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/decl.c (gnat_to_gnu_entity) <E_Constant>: Do not get
	the expression of a dispatch table that is not being defined.
	<E_Record_Subtype>: Remove obsolete kludge.

2018-06-12  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/decl.c (warn_on_field_placement): Use specific wording
	for discriminants.
	(warn_on_list_placement): New static function.
	(components_to_record): Use it to warn on multiple fields in list.

2018-06-12  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/decl.c (variant_desc): Add AUX field.
	(gnat_to_gnu_entity) <discrete_type>: Do not call compute_record_mode
	directly.
	(reverse_sort_field_list): New static function.
	(components_to_record): Place the variant part at the beginning of the
	field list when there is an obvious order of increasing position.
	(build_variant_list): Initialize it.
	(create_variant_part_from): Do not call compute_record_mode directly.
	(copy_and_substitute_in_layout): Likewise.  Always sort the fields with
	fixed position in order of increasing position, in the record and all
	the variants, in any.  Call reverse_sort_field_list.
	* gcc-interface/utils.c (make_packable_type): Compute the sizes before
	calling finish_record_type.  Do not call compute_record_mode directly.
	(finish_record_type): Overhaul final processing depending on REP_LEVEL
	and call finish_bitfield_layout if it is equal to one or two.

2018-06-11  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/decl.c (gnat_to_gnu_entity) <E_Array_Type>: Reuse the
	existing fields of a dummy fat pointer type, if any.  Clear the
	TYPE_DECL_SUPPRESS_DEBUG on the fat pointer type after completing it.

2018-06-11  Hristian Kirtchev  <kirtchev@adacore.com>

	* contracts.adb (Process_Body_Postconditions): Expand only checked
	postconditions.
	(Process_Contract_Cases_For): Expand only checked contract cases.
	(Process_Inherited_Preconditions): Ignored class-wide preconditions are
	partially expanded because some of their semantic checks are tied to
	the expansion.
	(Process_Preconditions_For): Expand only checked preconditions.
	(Process_Spec_Postconditions): Expand only checked preconditions.
	Ignored class-wide preconditions are partially expanded because some of
	their semantic checks are tied to the expansion.
	* exp_prag.adb (Expand_N_Pragma): Suppress the expansion of ignored
	assertion pragmas.
	* exp_util.adb (Add_Inherited_Invariants): Code clean up.
	* sem_util.adb (Propagate_Invariant_Attributes): Code clean up.

2018-06-11  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_ch9.adb, exp_unst.adb, inline.adb, libgnat/a-ciorma.adb,
	libgnat/a-ciormu.adb, libgnat/a-ciorse.adb, libgnat/a-coorma.adb,
	libgnat/a-coormu.adb, libgnat/a-coorse.adb, sem_prag.adb: Minor
	reformatting.

2018-06-11  Gary Dismukes  <dismukes@adacore.com>

	* exp_unst.ads, exp_unst.adb: Typo fixes and minor reformatting.

2018-06-11  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_ch6.adb (Add_Unconstrained_Actuals_To_Build_In_Place_Call): Do
	not add any actuals when the size of the object is known, and the
	caller will allocate it.
	(Build_Heap_Allocator): Rename to Build_Heap_Or_Pool_Allocator to
	better illustrate its functionality. Update the comment on the
	generated code.  Generate a branch for the heap and pool cases where
	the object is not necessarity controlled.
	(Expand_N_Extended_Return_Statement): Expand the extended return
	statement into four branches depending the requested mode if the caller
	will not allocate the object on its side.
	(Make_Build_In_Place_Call_In_Allocator): Do not allocate a controlled
	object on the caller side because this will violate the semantics of
	finalizable types. Instead notify the function to allocate the object
	on the heap or a user-defined storage pool.
	(Needs_BIP_Alloc_Form): A build-in-place function needs to be notified
	which of the four modes to employ when returning a limited controlled
	result.
	* exp_util.adb (Build_Allocate_Deallocate_Proc): Remove a redundant
	guard which is already covered in Needs_Finalization.

2018-06-11  Olivier Hainque  <hainque@adacore.com>

	* libgnat/s-excmac*.ads: Factorize Unwind_Action definitions ...
	* libgnat/a-exexpr.adb: ... Here, then add comments describing the
	major datastructures associated with the current exception raised.
	(Setup_Current_Excep): Accept a "Phase" argument conveying the
	unwinding phase during which this subprogram is called.  For an Ada
	exception, don't update the current exception buffer from the raised
	exception object during SEARCH_PHASE, as this is redundant with the
	call now issued just before propagation starts.
	(Propagate_GCC_Exception): Move call to Setup_Current_Excep ahead of
	the unwinding start, conveying Phase 0.
	(Unhandled_Except_Handler): Pass UA_CLEANUP_PHASE as the Phase value on
	the call to Setup_Current_Excep.
	* raise-gcc.c (personality_body): Pass uw_phases as the Phase argument
	on calls to Setup_Current_Excep.

2018-06-11  Ed Schonberg  <schonberg@adacore.com>

	* exp_unst.ads, exp_unst.adb (Needs_Fat_Pointer,
	Build_Access_Type_Decl): New subprograms to handle uplevel references
	to formals of an unconstrained array type. The activation record
	component for these is an access type, and the reference is rewritten
	as an explicit derefenrence of that component.

2018-06-11  Bob Duff  <duff@adacore.com>

	* libgnat/a-ciorma.adb, libgnat/a-ciormu.adb, libgnat/a-ciorse.adb,
	libgnat/a-coorma.adb, libgnat/a-coormu.adb, libgnat/a-coorse.adb:
	(Element): Add code to detect dangling cursors in some cases.

2018-06-11  Yannick Moy  <moy@adacore.com>

	* sem_ch6.adb (Build_Subprogram_Declaration): Mark parameters as coming
	from source.

2018-06-11  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch13.adb (Build_Predicate_Functions): For a derived type, ensure
	that its parent is already frozen so that its predicate function, if
	any, has already been constructed.

2018-06-11  Yannick Moy  <moy@adacore.com>

	* sem_prag.adb (Check_Mode_Restriction_In_Enclosing_Context): Adapt for
	possible task unit as the enclosing context.

2018-06-11  Eric Botcazou  <ebotcazou@adacore.com>

	* gnat1drv.adb: Remove use clause for Repinfo.
	(Gnat1drv): Beef up comment about the interplay between -gnatc and
	back-end annotations.  Use full qualified name for List_Rep_Info.

2018-06-11  Hristian Kirtchev  <kirtchev@adacore.com>

	* libgnat/g-arrspl.ads: Add pragma Preelaborate.

2018-06-11  Arnaud Charlet  <charlet@adacore.com>

	* exp_ch4.adb (Expand_Record_Equality): Remove extraneous "True and
	then" and general logical "ada" in codepeer mode.

2018-06-11  Javier Miranda  <miranda@adacore.com>

	* exp_ch9.adb (Expand_N_Protected_Body): Add missing handling of
	N_Call_Marker nodes.

2018-06-11  Arnaud Charlet  <charlet@adacore.com>

	* exp_ch3.adb, exp_unst.adb, inline.adb, sem_prag.adb: Minor
	reformatting.

2018-06-11  Yannick Moy  <moy@adacore.com>

	* doc/gnat_rm/implementation_defined_pragmas.rst: Add Suppressible
	argument to Assertion_Policy
	* gnat_rm.texi: Regenerate.

2018-06-11  Yannick Moy  <moy@adacore.com>

	* gnat1drv.adb: Do not check representation information in CodePeer and
	GNATprove modes, as these modes call a special backend instead of gigi,
	so do not have the information.

2018-06-11  Yannick Moy  <moy@adacore.com>

	* inline.adb (Build_Body_To_Inline): Consider case of extended return
	of unconstrained type as one case where inlining is not supported.
	(Expand_Inlined_Call): Remove special case for body as extended return
	of unconstrained type.

2018-06-11  Yannick Moy  <moy@adacore.com>

	* sem_prag.adb (Analyze_Part_Of): Only allow Part_Of on non-generic
	unit.
	(Check_Missing_Part_Of): Do not force Part_Of on generic unit.

2018-06-11  Piotr Trojanek  <trojanek@adacore.com>

	* sem_ch13.adb (Analyze_Aspect_Specifications): Don't split AND THEN
	expressions in Pre/Post contracts while in GNATprove_Mode.

2018-06-11  Piotr Trojanek  <trojanek@adacore.com>

	* sem_util.adb (Is_Potentially_Unevaluated): Fix detection of contracts
	with AND THEN expressions broken down into individual conjuncts.

2018-06-11  Ed Schonberg  <schonberg@adacore.com>

	* exp_ch7.adb (Check_Unnesting_Elaboration_Code): Add guard.

2018-06-11  Ed Schonberg  <schonberg@adacore.com>

	* exp_unst.adb (Visit_Node): Skip generic associations.

2018-06-11  Arnaud Charlet  <charlet@adacore.com>

	* libgnat/memtrack.adb (fwrite): Remove second definition.

2018-06-11  Javier Miranda  <miranda@adacore.com>

	* sinfo.ads (Is_Dynamic_Coextension): Adding documentation.
	(Is_Static_Coextension): Adding documentation.
	* sinfo.adb (Is_Dynamic_Coextension): Extending the assertion.
	(Is_Static_Coextension): Extending the assertion.
	* sem_util.adb (Mark_Allocator): Clear Is_Static_Coextension when
	setting flag Is_Dynamic_Coextension (and vice versa).

2018-06-11  Ed Schonberg  <schonberg@adacore.com>

	* exp_unst.adb (Search_Subprograms): Handle explicitly stubs at the top
	level of a compilation unit, becuase they may contain nested
	subprograms that need an activation record.

2018-06-11  Arnaud Charlet  <charlet@adacore.com>

	* Makefile.rtl: Compile Ada files with $(ADAC) instead of $(CC).

2018-06-11  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_ch11.adb, exp_unst.adb, inline.adb, sem_ch12.adb, sem_util.adb:
	Minor reformatting.
	* sinfo.ads: Fix a typo.

2018-06-11  Ed Schonberg  <schonberg@adacore.com>

	* inline.adb (Expand_Inlined_Call): If no optimization level is
	specified, the expansion of a call to an Inline_Always function is
	fully performed in the front-end even on a target that support back-end
	inlining.

2018-06-11  Arnaud Charlet  <charlet@adacore.com>

	* bindgen.adb (Gen_Adainit): Protect reference to System.Parameters
	with Sec_Stack_Used.

2018-06-11  Hristian Kirtchev  <kirtchev@adacore.com>

	* sem_ch8.adb (Find_Direct_Name): Mode the declaration of
	Is_Assignment_LHS further in. Use predicate
	Needs_Variable_Reference_Marker to determine whether to create a
	variable marker.
	(Find_Expanded_Name): Mode the declaration of Is_Assignment_LHS further
	in.  Use predicate Needs_Variable_Reference_Marker to determine whether
	to create a variable marker.
	* sem_elab.adb (Build_Variable_Reference_Marker): Remove the various
	checks that determine whether the identifier or expanded name is a
	suitable variable reference.  The checks are now performed by
	Needs_Variable_Reference_Marker.
	* sem_res.adb (Resolve_Actuals): Use predicate
	Needs_Variable_Reference_Marker to determine whether to create a
	variable marker.
	* sem_util.adb (Needs_Variable_Reference_Marker): New routine.
	* sem_util.ads (Needs_Variable_Reference_Marker): New routine.

2018-06-11  Valentine Reboul  <reboul@adacore.com>

	* doc/gnat_rm.rst, doc/gnat_ugn.rst: Rename "GPL Edition" into
	"Community Edition".

2018-06-11  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch12.adb (Install_Body): In order to determine the placement of
	the freeze node for an instance of a generic nested within another
	instance, take into account that the outer instance may be declared in
	the visible part of a package and the inner intance may be in the
	private part of the same package.

2018-06-11  Eric Botcazou  <ebotcazou@adacore.com>

	* errout.adb (Special_Msg_Delete): Remove handling of Atomic and VFA.

2018-06-11  Nicolas Roche  <roche@adacore.com>

	* libgnat/s-valuti.adb (Bad_Value): Ensure that we do not generate a
	stack overflow while raising a constraint error.

2018-06-11  Eric Botcazou  <ebotcazou@adacore.com>

	* repinfo.ads (Rep_Value): Use a single line.
	* repinfo.adb (Rep_Value): Likewise.
	(List_Attr): Do not use string concatenation.

2018-06-11  Ed Schonberg  <schonberg@adacore.com>

	* exp_unst.adb (Visit_Node): Check reference to formal parameter of
	current procedure, because the bounds of its type may be uplevel
	references.

2018-06-02  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/decl.c (gnat_to_gnu_entity) <E_Constant>: If this is
	not a definition, retrieve the expression only if it's a compile-time
	known value if we are just annotating types.

	* gcc-interface/utils.c (convert): Do not try to upcast properly for a
	conversion between tagged types in type_annotate_only mode.

2018-06-02  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/ada-tree.h (TYPE_PADDING_FOR_COMPONENT): New macro.
	* gcc-interface/decl.c (gnat_to_gnu_component_type): Cache the padding
	type built for an aliased component with variable size.

2018-05-31  Pierre-Marie de Rodat  <derodat@adacore.com>

	* doc/gnat_ugn/project-manager-figure.png: Delete.

2018-05-31  Pierre-Marie de Rodat  <derodat@adacore.com>

	* vxworks-arm-link.spec, vxworks-e500-link.spec,
	vxworks-gnat-crtbe-link.spec, vxworks-smp-arm-link.spec,
	vxworks-smp-e500-link.spec, vxworks-smp-ppc-link.spec,
	vxworks-smp-x86-link.spec: New files.

2018-05-31  Pierre-Marie de Rodat  <derodat@adacore.com>

	* gnatvsn.adb: Re-center the copyright header.
	* indepsw-darwin.adb: Adjust the starting copyright year to 2011.

2018-05-31  Fedor Rybin  <frybin@adacore.com>

	* doc/gnat_ugn/gnat_utility_programs.rst: Document Stubs_Subdir in
	gnattest section on user guide.

2018-05-31  Ed Schonberg  <schonberg@adacore.com>

	* sem_res.adb (Resolve_String_Literal): If the type is a string type
	whose component subtype has a static predicate, ensure that the
	predicate is applied to each character by expanding the string into the
	equivalent aggregate. This is also done if the component subtype is
	constrained.

2018-05-31  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/trans.c (Call_to_gnu): Remove obsolete code.

2018-05-31  Piotr Trojanek  <trojanek@adacore.com>

	* sem_ch6.adb (Check_Missing_Return): Handle procedures with no
	explicit spec.

2018-05-31  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/trans.c (Call_to_gnu): In the by-reference case, if
	the type of the parameter is an unconstrained array type, convert
	to the type of the actual before the type of the formal only if the
	conversion was suppressed earlier.  Use in_param and gnu_actual_type
	local variables throughout, and uniform spelling for In Out or Out.
	Also remove dead code in the component-by-reference case.

2018-05-31  Frederic Konrad  <konrad@adacore.com>

	* tracebak.c (STOP_FRAME): Harden condition.
	(is_return_from, EXTRA_STOP_CONDITION): New helpers for VxWorks in RTP
	mode.

2018-05-31  Ed Schonberg  <schonberg@adacore.com>

	* checks.adb (Apply_Discriminant_Check): Do not apply discriminant
	check to a call to a build-in-place function, given that the return
	object is limited and cannot be copied.

2018-05-31  Olivier Hainque  <hainque@adacore.com>

	* libgnat/s-atopri.ads: Update comment on __atomic_compare_exchange
	builtins.

2018-05-31  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/trans.c (Call_to_gnu): If this is a function call and
	there is no target, also create a temporary for the return value for
	an allocator if the type is an unconstrained record type with default
	discriminant.

2018-05-31  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_ch7.adb (Find_Transient_Context): An iteration scheme is a valid
	boudary for a transient scope.

2018-05-31  Valentine Reboul  <reboul@adacore.com>

	* gnatvsn.ads: Rename "GPL" version to "Community".

2018-05-31  Ed Schonberg  <schonberg@adacore.com>

	* einfo.ads: Improve documentation for the Is_Unsigned_Type entity
	flag.

2018-05-31  Piotr Trojanek  <trojanek@adacore.com>

	* sem_prag.adb (Analyze_Pragma): Replace call to Unique_Defining_Entity
	with a semantically equivalent call to Defining_Entity.

2018-05-31  Piotr Trojanek  <trojanek@adacore.com>

	* sem_prag.adb (Analyze_Pragma): Set Etype on the rewritten
	Max_Queue_Length expression.

2018-05-31  Sergey Rybin  <rybin@adacore.com>

	* doc/gnat_ugn/gnat_and_program_execution.rst: gnatelim does not need
	that the main unit to be built before the call, now it computes the
	closure of the main unit itself.
	* gnat_ugn.texi: Regenerate.

2018-05-31  Eric Botcazou  <ebotcazou@adacore.com>

	* repinfo.adb (List_Structural_Record_Layout): Set First to false
	after having listed the fields of the parent type, if any.

2018-05-31  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/decl.c (gnat_to_gnu_entity) <discrete_type>: Do not
	deal with the ___XP suffix for packed array types here...
	<E_Array_Subtype>: ...or here when processing the implementation type
	but when processing the original type instead.  Do not reuse the DECL
	of the implementation type for the original type.  Tidy up.

2018-05-31  Eric Botcazou  <ebotcazou@adacore.com>

	* einfo.ads (Object_Size_Clause): Declare.
	* einfo.adb (Object_Size_Clause): New function.
	* gcc-interface/utils.c (maybe_pad_type): Test Has_Size_Clause before
	retrieving Size_Clause and post the warning on the object size clause
	if Has_Object_Size_Clause is true.

2018-05-31  Javier Miranda  <miranda@adacore.com>

	* sem_util.ads, sem_util.adb (Find_Primitive_Eq): New subprogram.
	* exp_ch4.adb (Expand_Composite_Equality): Use the new subprogram
	Find_Primitive_Eq to search for the primitive of types whose underlying
	type is a tagged type.

2018-05-31  Yannick Moy  <moy@adacore.com>

	* sem_prag.adb (Analyze_Pragma.Check_Loop_Pragma_Placement): Inverse
	order of treatment between nodes recognized as loop pragmas (or
	generated from one) and block statements.

2018-05-31  Doug Rupp  <rupp@adacore.com>

	* libgnat/s-osprim__posix2008.adb (Clock): Implement using
	clock_gettime.

2018-05-31  Ed Schonberg  <schonberg@adacore.com>

	* exp_unst.ads, exp_unst.adb (In_Synchronized_Unit): New predicate to
	mark subprograms that cannot be eliminated because they must be treated
	as reachable from outside the current unit. This includes entry bodies
	and protected operations.

2018-05-31  Ed Schonberg  <schonberg@adacore.com>

	* exp_ch4.adb (Expand_Modular_Addition, Expand_Modular_Subtraction):
	Convert all operands of the generated code to Standard.Unsigned, to
	prevent spurious visibility errors. This is needed when the generated
	expansion involves a modular index type of an array type, and the index
	type is not immediately visible.

2018-05-30  Piotr Trojanek  <trojanek@adacore.com>

	* einfo.ads (Package_Instantiation): Update comment after a routine
	that uses this field has been renamed.

2018-05-30  Ed Schonberg  <schonberg@adacore.com>

	* exp_ch11.adb (Replace_Raise_By_Goto): The transfomation is legal even
	if the local raise statement includes a string expression. This
	expression might be picked up by an outer handler or discarded, but
	plays no role in this transformation.

2018-05-30  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_aggr.adb, exp_unst.adb, freeze.adb, libgnat/a-direct.adb: Minor
	reformatting.

2018-05-30  Ed Schonberg  <schonberg@adacore.com>

	* exp_unst.adb (Visit_Node): Handle the semantic Procedure_To_Call
	field in relevant nodes: Allocate, Free, and return statements.

2018-05-30  Ed Schonberg  <schonberg@adacore.com>

	* exp_unst.adb (Visit_Node): Do not traverse a Component_Association
	that has not been analyzed, as will be the case for a nested aggregate
	that is expanded into individual assignments.

2018-05-30  Justin Squirek  <squirek@adacore.com>

	* aspects.adb, aspects.ads: Register new aspect.
	* par-prag.adb (Prag): Register new pragma.
	* sem_ch13.adb (Analyze_Aspect_Specifications): Add processing for new
	aspect similar to Aspect_Max_Queue_Length.
	* sem_prag.adb, sem_prag.ads (Analyze_Pragma): Register new pragma and
	set it to use the same processing as Pragma_Max_Queue_Length.
	* snames.ads-tmpl: Move definition of Name_Max_Entry_Queue_Depth so
	that it can be processed as a pragma in addition to a restriction and
	add an entry for the pragma itself.

2018-05-30  Ed Schonberg  <schonberg@adacore.com>

	* freeze.adb (Freeze_Object_Declaration): A pragma Thread_Local_Storage
	is now legal on a variable of composite type initialized with an
	aggregate that is fully static and requires no elaboration code.
	* exp_aggr.adb (Convert_To_Positional): Recognize additional cases of
	nested aggregates that are compile-time static, so they can be used to
	initialize variables declared with Threqd_Local_Storage.
	* doc/gnat_rm/implementation_defined_pragmas.rst: Add documentation on
	Thread_Local_Storage.
	* gnat_rm.texi: Regenerate.

2018-05-30  Yannick Moy  <moy@adacore.com>

	* sem_util.adb (Policy_In_Effect): Take into account CodePeer and
	GNATprove modes.

2018-05-30  Justin Squirek  <squirek@adacore.com>

	* libgnat/a-direct.adb, libgnat/a-direct.ads (Name_Case_Equivalence):
	Add implementation.
	(Start_Search): Modify to use Start_Search_Internal
	(Start_Search_Internal): Add to break out an extra flag for searching
	case insensative due to the potential for directories within the same
	OS to allow different casing schemes.
	* sysdep.c (__gnat_name_case_equivalence): Add as a default fallback
	for when the more precise solution fails.

2018-05-30  Hristian Kirtchev  <kirtchev@adacore.com>

	* checks.adb, exp_ch5.adb, exp_ch7.adb, exp_unst.adb, sem_eval.adb:
	Minor reformatting.

2018-05-30  Pascal Obry  <obry@adacore.com>

	* libgnat/g-comlin.ads (Value_Callback, Define_Switch): New.
	* libgnat/g-comlin.adb: Add corresponding implementation.

2018-05-30  Gary Dismukes  <dismukes@adacore.com>

	* sem_res.adb, sem_util.adb: Fix several typos.

2018-05-30  Olivier Hainque  <hainque@adacore.com>

	* vx_crtbegin_attr.c (CTOR_ATTRIBUTE, DTOR_ATTRIBUTE): Empty.
	(eh_registration_ctors, eh_registration_tors): New static variables,
	forced in a .ctors/.dtors section, respectively, with priority.

2018-05-30  Bob Duff  <duff@adacore.com>

	* aspects.ads, contracts.adb, exp_util.adb, expander.adb, expander.ads,
	freeze.adb, inline.adb, lib-xref.adb, sem.ads, sem_aggr.adb,
	sem_attr.adb, sem_ch13.adb, sem_ch3.adb, sem_ch5.adb, sem_ch6.adb,
	sem_ch8.adb, sem_dim.adb, sem_elab.adb, sem_res.adb, sem_res.ads,
	sinfo.ads: Spell preanalysis, preanalyze correctly.

2018-05-30  Bob Duff  <duff@adacore.com>

	* libgnat/g-sestin.ads: Rework documentation comments.

2018-05-30  Piotr Trojanek  <trojanek@adacore.com>

	* errout.adb, exp_aggr.adb, exp_ch7.adb, exp_util.adb, lib.adb,
	sem_ch13.adb, sem_ch4.adb, sem_res.adb, sem_util.adb
	(Has_Original_Node): Refactor to use Is_Rewrite_Substitution.

2018-05-30  Piotr Trojanek  <trojanek@adacore.com>

	* sem_prag.adb (Analyze_Pragma): Remove conjuncts that are always true.

2018-05-30  Hristian Kirtchev  <kirtchev@adacore.com>

	* sem_util.adb (Is_Atomic_Object): Cleaned up. Split the entity logic
	in a separate routine.
	(Is_Atomic_Object_Entity): New routine.
	(Is_Atomic_Prefix): Cleaned up.
	(Is_Synchronized_Object): Check that the object is atomic, or its type
	is atomic.
	(Object_Has_Atomic_Components): Removed.
	* sem_util.ads (Is_Atomic_Object): Reword the comment on usage.
	(Is_Atomic_Object_Entity): New routine.

2018-05-30  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch3.adb (Access_Subprogram_Declaration): The flag
	Needs_Activation_Record is only needed on a subprogram type, not on a
	pointer to such.
	* sem_res.adb (Resolve_Selected_Component): If the context type and the
	component type are anonymous access to subprograms, use the component
	type to obtain the proper value of Needs_Activation_Record flag for the
	expression.

2018-05-30  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/trans.c (gnat_to_gnu) <N_Assignment_Statement>: Add
	comment about the memset case.

2018-05-30  Bob Duff  <duff@adacore.com>

	* exp_ch5.adb (Expand_Formal_Container_Element_Loop): Remove the code
	to analyze the Elmt_Decl, because it gets analyzed in the wrong scope.
	We need to analyze it as part of analyzing the block, so that if the
	call to Element that initializes Elmt_Decl returns on the secondary
	stack, the block will ss_mark/ss_release. This block is inside the
	loop; we don't want to leak memory until the loop exits.  The purpose
	of analyzing Elmt_Decl first was to catch the error of modifying it,
	which is illegal because it's a loop parameter. The above causes us to
	miss that error.  Therefore, we add a flag Is_Loop_Parameter, and set
	it on the Element entity, so we end up with an E_Variable node with the
	flag set.
	* einfo.ads, einfo.adb (Is_Loop_Parameter): New flag.
	* sem_ch5.adb (Diagnose_Non_Variable_Lhs): Give the "assignment to loop
	parameter not allowed" error if Is_Loop_Parameter.
	* sem_util.adb (Is_Variable): Return False if Is_Loop_Parameter, to
	trigger the call to Diagnose_Non_Variable_Lhs.

2018-05-30  Arnaud Charlet  <charlet@adacore.com>

	* checks.adb (Apply_Scalar_Range_Check):
	* sem_eval.adb (Check_Non_Static_Context, Out_Of_Range): Ignore out of
	range values for System.Priority in CodePeer mode since the actual
	target compiler may provide a wider range.

2018-05-30  Ed Schonberg  <schonberg@adacore.com>

	* exp_unst.adb: Search specification of main unit as well, for
	unnesting.

2018-05-30  Ed Schonberg  <schonberg@adacore.com>

	* exp_ch7.adb (Check_Unnesting_Elaboration_Code): The statement part of
	a package body that is a compilation unit may contain blocks that
	declare local subprograms.  In Subprogram_Unnesting Mode such
	subprograms must be handled as nested inside the (implicit) elaboration
	procedure that executes that statement part. To handle properly uplevel
	references we construct that subprogram explicitly, to contain blocks
	and inner subprograms, The statement part of the compilation unit
	becomes a call to this subprogram. This is only done if blocks are
	present in the statement list of the body.

2018-05-30  Bob Duff  <duff@adacore.com>

	* exp_ch7.adb: Minor comment fix.

2018-05-30  Ed Schonberg  <schonberg@adacore.com>

	* exp_unst.adb (Visit_Node): Handle properly subprogram instantiations
	that have no corresponding body and appear as attributes of the
	corresponding wrapper package declaration.
	(Register_Subprogram): New subprogram, used for subprogram bodies and
	for subprogram instantiations to enter callable entity into Subp table.

2018-05-30  Hristian Kirtchev  <kirtchev@adacore.com>

	* libgnat/s-secsta.adb: Reimplement the secondary stack support.
	* libgnat/s-secsta.ads: Update the documentation of all routines in the
	public part of the package.  Reimplement the private part of the
	package to account for the new secondary stack structure.  Add types
	and subprograms for testing purposes.  Add several documentation
	sections.

2018-05-30  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_aggr.adb, exp_ch3.adb, exp_ch4.adb, exp_ch7.adb, exp_unst.adb,
	exp_util.adb, exp_util.ads, libgnat/a-calcon.adb, libgnat/a-calcon.ads,
	libgnat/s-os_lib.adb, repinfo.adb, sem_ch3.adb, sem_disp.adb,
	sem_disp.ads, sem_util.adb: Minor reformatting.

2018-05-30  Arnaud Charlet  <charlet@adacore.com>

	* gcc-interface/Makefile.in: Move special flags for Ada runtime files
	from here...
	* Makefile.rtl: ... to here.  Update comments.  Protect call to
	"GCC_FOR_TARGET" in case target_os isn't defined.

2018-05-30  Arnaud Charlet  <charlet@adacore.com>

	* gcc-interface/Makefile.in: Move target pair settings from here...
	* Makefile.rtl: ... to here.
	(setup-rts): New target.

2018-05-29  Eric Botcazou  <ebotcazou@adacore.com>

	* doc/gnat_ugn/building_executable_programs_with_gnat.rst (Alphabetical
	List of All Switches): Replace "modules" with "units".
	(Subprogram Inlining Control): Likewise.
	* gnat_ugn.texi: Regenerate.
	* usage.adb (Usage): Fix description of -gnatn switch.

2018-05-29  Arnaud Charlet  <charlet@adacore.com>

	* gcc-interface/Makefile.in: Fix typos.

2018-05-29  Ed Schonberg  <schonberg@adacore.com>

	* exp_ch7.adb (Build_Finalizer_Call): Attach to tree the reference to
	the finalizer procedure in the At_End handler, for use in LLVM
	generation.

2018-05-29  Javier Miranda  <miranda@adacore.com>

	* exp_ch4.adb (Expand_N_Op_Eq, Expand_Composite_Equality): Use the new
	subprogram Inherits_From_Tagged_Full_View to identify more reliably
	untagged private types completed with a derivation of an untagged
	private whose full view is a tagged type.
	* sem_util.ads, sem_util.adb (Inherits_From_Tagged_Full_View): New
	subprogram.
	(Collect_Primitive_Operations): Handle untagged private types completed
	with a derivation of an untagged private type whose full view is a
	tagged type. In such case, collecting the list of primitives we may
	find two equality primitives: one associated with the untagged private
	and another associated with the ultimate tagged type (and we must
	remove from the returned list this latter one).

2018-05-29  Ed Schonberg  <schonberg@adacore.com>

	* exp_unst.adb (Visit_Node): Handle statement sequences that include an
	At_End handler.

2018-05-29  Eric Botcazou  <ebotcazou@adacore.com>

	* repinfo.adb (List_Entities): Also recurse into blocks without label.

2018-05-29  Ed Schonberg  <schonberg@adacore.com>

	* exp_ch6.adb (Expand_N_Subprogram_Body): Do not generate push/pop for
	exceptions if subprogram unnesting is in effect, because these branch
	nodes are relevant only in the presence of nested subprograms.

2018-05-29  Ed Schonberg  <schonberg@adacore.com>

	* libgnat/s-fatgen.adb (Succ, Pred):  Raise Constraint_Error
	unconditionally when applied to the largest positive (resp. largest
	negative) value of a floating-point type.

2018-05-29  Ed Schonberg  <schonberg@adacore.com>

	* einfo.ads, einfo.adb: Clarify use of Activation_Record_Component:
	discriminants and exceptions are never components of such.  The flag
	Needs_Activation_Record is set on subprogram types, not on access to
	them.

2018-05-29  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch3.adb: Set scope of component of subtype.

2018-05-29  Ed Schonberg  <schonberg@adacore.com>

	* exp_unst.adb (Visit_Node): Exclude selected components whose prefix
	carry no type. Such selected components appear in unit names that are
	child units, both in the specification and possibly in an end label for
	the unit, and they do not contain any relevant uplevel references.

2018-05-29  Arnaud Charlet  <charlet@adacore.com>

	* libgnat/a-calend.ads, libgnat/a-calend.adb (Epoch_Offset): Make it a
	function.

2018-05-29  Olivier Hainque  <hainque@adacore.com>

	* libgnat/system-vxworks7-ppc-rtp.ads: New file.
	* libgnat/system-vxworks7-ppc-kernel.ads: New file.
	* libgnat/system-vxworks7-e500-rtp.ads: New file.
	* libgnat/system-vxworks7-e500-kernel.ads: New file.
	* libgnat/system-vxworks7-x86-rtp.ads: New file.
	* libgnat/system-vxworks-ppc64-kernel.ads: Rename as ...
	* libgnat/system-vxworks7-ppc64-kernel.ads: and adjust name of
	gnat-crtbe link spec to use the vx7 variant.

2018-05-29  Olivier Hainque  <hainque@adacore.com>

	* vx_crtbegin.inc: Use a consistent naming convention for the
	registration/deregistration functions across RTP or kernel.  Remove the
	ctor/dtor attribute setting based on RTP/kernel, expect the optional
	attribute extension to be provided by includers instead.
	* vx_crtbegin.c: Mere inclusion of vx_crtbegin.inc with empty attribute
	extension for the registration/deregistration functions.
	* vx_crtbegin_attr.c: New file. Include vx_crtbegin.inc with explicit
	constructor/destructor attribute extensions.
	* vx_crtbegin_array.c: New file. Include vx_crtbegin.inc with empty
	attribute extensions and declare _ctors/_dtors arrays.
	* vx_crtbegin_auto.c: Remove.
	* libgnat/system-vxworks7-aarch64-rtp-smp.ads: Use
	vxworks7-gnat-crtbe-link.spec.
	* libgnat/system-vxworks7-aarch64.ads: Likewise.
	* libgnat/system-vxworks7-e500-rtp-smp.ads: Likewise.
	* libgnat/system-vxworks7-ppc-rtp-smp.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_64-kernel.ads: Likewise.
	* libgnat/system-vxworks7-x86_64-rtp-smp.ads: Likewise.

2018-05-29  Piotr Trojanek  <trojanek@adacore.com>

	* ali.adb: Minor reformatting.

2018-05-29  Joel Brobecker  <brobecker@adacore.com>

	* doc/gnat_ugn/platform_specific_information.rst: Update package
	requirements for 32bit GNAT on x86_64-linux.
	* gnat_ugn.texi: Regenerate.

2018-05-29  Eric Botcazou  <ebotcazou@adacore.com>

	* doc/gnat_ugn/building_executable_programs_with_gnat.rst (Debugging
	Control): Adjust description of -gnatRj.
	* gnat_ugn.texi: Regenerate.
	* opt.ads (List_Representation_Info_To_JSON): Likewise.
	* repinfo.adb (List_Rep_Info): Do not automatically create a file
	if List_Representation_Info_To_JSON is true.
	* switch-c.adb (Scan_Front_End_Switches) <R>: Remove incompatibility
	check between -gnatRj and -gnatRs.
	* usage.adb (Usage): Adjust description of -gnatRj.

2018-05-29  Pascal Obry  <obry@adacore.com>

	* libgnat/s-os_lib.adb (Normalize_Pathname): Fix handling of ".." in
	the root directory.

2018-05-29  Pascal Obry  <obry@adacore.com>

	* libgnat/s-os_lib.adb: Minor reformatting.

2018-05-29  Doug Rupp  <rupp@adacore.com>

	* libgnat/a-calend.adb (Epoch_Offset): Move from body to ...
	* libgnat/a-calend.ads (Epoch_Offset): to private part of spec
	* libgnat/a-calcon.ads (To_Unix_Nano_Time): New function spec.
	* libgnat/a-calcon.adb (To_Unix_Nano_Time): New function body.

2018-05-29  Eric Botcazou  <ebotcazou@adacore.com>

	* repinfo.ads (JSON format): Document new pair for components.
	* repinfo.adb (Derived_Discriminant): New function.
	(List_Structural_Record_Layout): Add Outer_Ent parameter and pass it
	in recursive calls. If the record type is the parent of an extension,
	find and list the derived discriminant from the extension, if any.
	(List_Component_Layout): List the Discriminant_Number in JSON mode.
	(List_Record_Info): Adjust call to List_Structural_Record_Layout.

2018-05-29  Eric Botcazou  <ebotcazou@adacore.com>

	* doc/gnat_ugn/building_executable_programs_with_gnat.rst (Alphabetical
	List of All Switches): Document -gnatRj.
	(Debugging Control): Likewise.
	* gnat_ugn.texi: Regenerate.
	* opt.ads (List_Representation_Info_To_JSON): New boolean variable.
	* osint-c.adb (Create_Repinfo_File): Use the .json instead of .rep
	extension if List_Representation_Info_To_JSON is true.
	* repinfo.ads: Document the JSON output format.
	* repinfo.adb (List_Location): New procedure.
	(List_Array_Info): Add support for JSON output.
	(List_Entities): Likewise.
	(Unop): Likewise.
	(Binop): Likewise.
	(Print_Expr): Likewise.
	(List_Linker_Section): Likewise.
	(List_Mechanisms): Likewise.
	(List_Name): Likewise.
	(List_Object_Info): Likewise.
	(List_Record_Info): Likewise.
	(List_Component_Layout): Likewise.  Add Indent parameter.
	(List_Structural_Record_Layout): New procedure.
	(List_Attr): Add support for JSON output.
	(List_Type_Info): Likewise.
	(Write_Unknown_Val): Likewise.
	* switch-c.adb (Scan_Front_End_Switches) <R>: Deal with 'j'.
	* usage.adb (Usage): List -gnatRj.

2018-05-29  Eric Botcazou  <ebotcazou@adacore.com>

	* repinfo.adb (List_Component_Layout): New procedure extracted from...
	(List_Record_Layout): ...here.  Invoke it.

2018-05-29  Eric Botcazou  <ebotcazou@adacore.com>

	* repinfo.adb (Write_Unknown_Val): New procedure.
	(List_GCC_Expression): Call it.
	(List_Record_Layout): Likewise.
	(Write_Val): Likewise.

2018-05-29  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* exp_ch4.adb (Expand_N_Op_Abs): Clear Do_Overflow_Check when inserting
	code to do check.

2018-05-29  Arnaud Charlet  <charlet@adacore.com>

	* lib-writ.adb (Write_ALI): Do not use new function from s-casuti yet.
	This breaks build of cross compilers with older versions of GNAT, so
	better avoid it.

2018-05-29  Doug Rupp  <rupp@adacore.com>

	* libgnarl/s-taprop.ads (Monotonic_Clock): Refine documentation to
	reflect reality.

2018-05-29  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* exp_ch4.adb (Expand_N_Op_Abs): Always do range check against 'First.

2018-05-29  Eric Botcazou  <ebotcazou@adacore.com>

	* repinfo.adb (List_Entities): Do not list the Linker_Section for
	subprograms here...
	(List_Mechanisms): ...but here instead.  Use consistent name output
	and formatting conventions.

2018-05-29  Bob Duff  <duff@adacore.com>

	* lib-writ.adb (Write_ALI): Cleanup: avoid use of global var; call new
	To_Lower function.
	* libgnat/s-casuti.ads, libgnat/s-casuti.adb (To_Upper, To_Lower,
	To_Mixed): New functions.
	* osint.adb: Cleanup: use Is_Directory_Separator, which correctly
	allows both '\' and '/' on Windows.

2018-05-28  Eric Botcazou  <ebotcazou@adacore.com>

	* repinfo.ads: Minor fixes and tweaks in comments.

2018-05-28  Eric Botcazou  <ebotcazou@adacore.com>

	* repinfo.adb (List_GCC_Expression): Remove Valop and replace calls to
	it with calls to Unop.

2018-05-28  Eric Botcazou  <ebotcazou@adacore.com>

	* repinfo.ads (TCode): Adjust range.
	(Truth_Andif_Expr): Remove.
	(Truth_Orif_Expr): Likewise.
	(Truth_And_Expr .. Dynamic_Val): Adjust value.
	* repinfo.adb (Print_Expr): Remove handling of Truth_{And,Or}if_Expr.
	(Rep_Value): Likewise.
	* repinfo.h (Truth_Andif_Expr): Remove.
	(Truth_Orif_Expr): Likewise.
	(Truth_And_Expr .. Dynamic_Val): Adjust value.
	* gcc-interface/decl.c (annotate_value) <TRUTH_ANDIF_EXPR>: Fall
	through to TRUTH_AND_EXPR case.
	<TRUTH_ORIF_EXPR>: Fall through to TRUTH_OR_EXPR case.

2018-05-28  Ed Schonberg  <schonberg@adacore.com>

	* exp_unst.adb (Visit_Node): For indexed components and attribute
	references, examine index expressions or associated expressions as well
	to record uplevel references.
	(Vist_Node): For function and procedure calls, if a formal is an
	unconstrained array and the actual is constrained, check whether bounds
	of actual have uplevel references.

2018-05-28  Ed Schonberg  <schonberg@adacore.com>

	* einfo.ads, einfo.adb: Exceptions can be uplevel references, and thus
	they can appear as components of activation records.
	* exp_unst.adb (Visit_Node): A reference to an exception may be an
	uplevel reference.

2018-05-28  Eric Botcazou  <ebotcazou@adacore.com>

	* exp_ch4.adb (Expand_Composite_Equality): Compute whether the size
	depends on a discriminant manually instead of using the predicate
	Size_Depends_On_Discriminant in the array type case.

2018-05-28  Ed Schonberg  <schonberg@adacore.com>

	* exp_unst.adb (Check_Static_Type): For a record subtype, check
	discriminant constraints as well.
	(Visit_Node): For a selected component, check type of prefix, as is
	done for indexed components and slices.

2018-05-28  Javier Miranda  <miranda@adacore.com>

	* exp_ch4.adb (Real_Range_Check): Add a temporary to store the integer
	value when converting a float value to a fixed-point value. This is
	required for CCG because it handles fixed-point types by means of
	unsigned integer type variables. The range check is now performed using
	the integer value stored in this temporary.

2018-05-28  Yannick Moy  <moy@adacore.com>

	* sem_util.adb (Is_OK_Volatile_Context): Add attributes First, Last and
	Length as valid non-interfering contexts for SPARK.

2018-05-28  Claire Dross  <dross@adacore.com>

	* sem_disp.ads, sem_disp.adb (Inheritance_Utilities): Package for
	generic inheritance utilities.
	(Generic_Inherited_Subprograms): Generic version of
	Inherited_Subprograms, generic in Find_Dispatching_Type function.
	(Generic_Is_Overriding_Subprogram): Generic version of
	Is_Overriding_Subprogram, generic in Find_Dispatching_Type function.
	(Inherited_Subprograms): Instance of Generic_Inherited_Subprograms with
	Sem_Disp.Find_Dispatching_Type.
	(Is_Overriding_Subprogram): Instance of
	Generic_Is_Overriding_Subprogram with Sem_Disp.Find_Dispatching_Type.
	(Inheritance_Utilities_Inst): Instance of Inheritance_Utilities
	with Sem_Disp.Find_Dispatching_Type.

2018-05-28  Eric Botcazou  <ebotcazou@adacore.com>

	* exp_ch4.adb (Expand_Composite_Equality): For a composite (or FP)
	component type, do not expand array equality using the unconstrained
	base type, except for the case where the bounds of the type depend on a
	discriminant.

2018-05-28  Ed Schonberg  <schonberg@adacore.com>

	* einfo.ads, einfo.adb (Needs_Activation_Record): New flag on
	access-to-subprogram types, to indicate that an indirect call through
	such a type requires an activation record when compiling for LLVM.
	* sem_ch3.adb (Access_Subprogram_Declaration): Set new flag as needed.

2018-05-28  Ed Schonberg  <schonberg@adacore.com>

	* exp_ch4.adb (Real_Range_Check): Specialize float-to-fixed conversions
	when bounds of fixed type are static, to remove some spuerfluous
	implicit conversions and provide an accurate result when converting
	back and forth between the fixed point type and a floating point type.

2018-05-28  Ed Schonberg  <schonberg@adacore.com>

	* exp_unst.adb (Unnest_Subprogram): Prevent creation of empty
	activation records.

2018-05-28  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* exp_unst.adb (Check_Static_Type): Add argument to indicate node to be
	replaced, if any; all callers changed.
	(Note_Uplevel_Ref): Likewise.  Also replace reference to deferred
	constant with private view so we take the address of that entity.
	(Note_Uplevel_Bound): Add argument to indicate node to be replaced, if
	any; all callers changed.  Handle N_Indexed_Component like
	N_Attribute_Reference.  Add N_Type_Conversion case.
	(Visit_Node): Indexed references can be uplevel if the type isn't
	static.
	(Unnest_Subprograms): Don't rewrite if no reference given.  If call has
	been relocated, set first_named pointer in original node as well.

2018-05-28  Ed Schonberg  <schonberg@adacore.com>

	* exp_aggr.adb (Flatten): Copy tree of expression in a component
	association with a range or a set of discrete choices, rather than
	relocating the node. This avoids inconsistencies in the tree when
	handling nested subprograms with uplevel references for LLVM.

2018-05-28  Arnaud Charlet  <charlet@adacore.com>

	* exp_util.adb (Possible_Bit_Aligned_Component): Always return False in
	codepeer mode.

2018-05-28  Arnaud Charlet  <charlet@adacore.com>

	* exp_unst.adb: Fix typo.

2018-05-28  Bob Duff  <duff@adacore.com>

	* libgnat/a-convec.adb (Query_Element): Minor cleanup: remove an
	unnecessary use of 'Unrestricted_Access.

2018-05-28  Hristian Kirtchev  <kirtchev@adacore.com>

	* repinfo.adb (Expr_Value_S): New routine.
	(List_Linker_Section): Properly extract the value of the section
	argument.

2018-05-28  Patrick Bernardi  <bernardi@adacore.com>

	* doc/gnat_ugn/building_executable_programs_with_gnat.rst: Update the
	description of the -D binder switch to reflect current usage.
	* gnat_ugn.texi: Regenerate.

2018-05-28  Gary Dismukes  <dismukes@adacore.com>

	* exp_ch3.adb: Minor reformatting

2018-05-28  Justin Squirek  <squirek@adacore.com>

	* exp_ch3.adb
	(Build_Initialization_Call): Add logic to pass the appropriate actual to match
	 new formal.
	(Init_Formals): Add new formal *_skip_null_excluding_check
	* exp_util.adb, exp_util.ads
	(Enclosing_Init_Proc): Added to fetch the enclosing Init_Proc from the current
	 scope.
	(Inside_Init_Proc): Refactored to use Enclosing_Init_Proc
	(Needs_Conditional_Null_Excluding_Check): Added to factorize the predicate
	 used to determine how to generate an Init_Proc for a given type.
	(Needs_Constant_Address): Minor reformatting
	* sem_res.adb
	(Resolve_Null): Add logic to generate a conditional check in certain cases

2018-05-28  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_aggr.adb, gnatlink.adb, sem_ch6.adb, sem_res.adb, sem_util.adb:
	Minor reformatting.

2018-05-28  Hristian Kirtchev  <kirtchev@adacore.com>

	* sem_prag.adb (Process_Atomic_Independent_Shared_Volatile): Include
	the declarations of single concurrent types because they fall in the
	category of full type and object declarations.

2018-05-28  Eric Botcazou  <ebotcazou@adacore.com>

	* repinfo.adb (Compute_Max_Length): Skip _Parent component.
	(List_Record_Layout): Likewise.

2018-05-28  Ed Schonberg  <schonberg@adacore.com>

	* sem_util.adb (Is_Function_Result): Add a warning if a postcondition
	includes a call to function to which it applies. This may mean an
	omission of an attribute reference 'Result, in particular if the
	function is pqrameterless.

2018-05-28  Justin Squirek  <squirek@adacore.com>

	* sem_ch8.adb (Find_Expanded_Name): Add extra guard to make sure the
	misresolved package name is not a case of mistaken identity.

2018-05-28  Yannick Moy  <moy@adacore.com>

	* sem_res.adb (Resolve_Range): Re-resolve the low bound of a range in
	GNATprove mode, as the order of resolution (low then high) means that
	all the information is not available when resolving the low bound the
	first time.

2018-05-28  Eric Botcazou  <ebotcazou@adacore.com>

	* repinfo.adb (List_Array_Info): Start with an explicit blank line and
	end with the linker section, if any.
	(List_Entities): Do not output the linker section for record types,
	array types and variables.
	(Print_Expr): Factor out common processing for unary operators and
	special values.  Adjust and reorder the various cases.
	(List_Object_Info): End with the linker section, if any.
	(List_Record_Info): Likewise.
	(List_Type_Info): Do not start with a blank line.

2018-05-25  Nicolas Roche  <roche@adacore.com>

	* libgnat/s-valrea.adb (Scan_Real): Abort computation once it is sure
	that the result will be either -infinite or +infinite.

2018-05-25  Patrick Bernardi  <bernardi@adacore.com>

	* libgnat/s-parame.ads, libgnat/s-parame__vxworks.ads,
	libgnat/s-parame__ae653.ads, libgnat/s-parame__hpux.ads (Size_Type):
	Expand range of type to match the address space of the target.
	(Task_Storage_Size): Remove unused type.

2018-05-25  Ed Schonberg  <schonberg@adacore.com>

	* sem_res.adb (Set_Mixed_Mode_Operand): If the operand is an expression
	of a fixed point type and the parent is a multiplying operation,
	resolve the operand with its own type because the context will impose a
	resulting type on the result of the multiplication by means of
	approriate conversion.

2018-05-25  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_ch3.adb (Default_Initialize_Object): Ensure that the analysis of
	the in-place initialization aggregate created for pragmas
	Initialize_Scalars or Normalize_Scalars is performed with checks
	suppressed.

2018-05-25  Arnaud Charlet  <charlet@adacore.com>

	* exp_aggr.adb (Convert_To_Positional): Bump default for
	Max_Others_Replicate to 32. Update comments.
	* osint.ads (Unknown_Attributes): No longer pretend this is a constant.
	(No_File_Info_Cache): Initialize separately.
	* osint.adb (No_File_Info_Cache): Update initializer.

2018-05-25  Javier Miranda  <miranda@adacore.com>

	* sem_res.adb (Resolve_Membership_Op): Allow the use of the membership
	test when the left operand is a class-wide interface and the right
	operand is not a class-wide type.
	* exp_ch4.adb (Tagged_Membership): Adding support for interface as the
	left operand.

2018-05-25  Ed Schonberg  <schonberg@adacore.com>

	* exp_aggr.adb (Flatten): A quantified expression cannot be duplicated
	in an others clause to prevent visibility issues with the generated
	loop variable.
	(Component_OK_For_Backend): Return false for a quantified expression.
	(Check_Static_Component): Ditto.

2018-05-25  Hristian Kirtchev  <kirtchev@adacore.com>

	* libgnat/s-secsta.adb (SS_Allocate): Reimplemented.
	(SS_Allocate_Dynamic): New routine. The allocation logic is now split
	into three distring cases rather than in one loop which attempts to
	handle all three cases. This rewrite eliminates an issue where the last
	frame of the stack cannot be freed, thus causing the memory range of a
	new frame to approach the overflow point of the memory index type.
	Since the overflow is logically treated as a
	too-much-memory-on-the-stack scenario, it causes a bogus Storage_Error.
	(SS_Allocate_Static): New routine. The routine factorizes the static
	secondary stack-related code from the former SS_Allocate.

2018-05-25  Sergey Rybin  <rybin@adacore.com>

	* doc/gnat_ugn/gnat_and_program_execution.rst: Add description of '-U'
	option for gnatelim.

2018-05-25  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch6.adb (Analyze_Subprogram_Body_Helper): Do not create
	Class_Wide_Clone_Body when analyzing a subprogram_body_stub: the clone
	is created when the proper body of the stub is analyzed.
	* sem_util.adb (ZBuild_Class_Wide_Clone_Body): If the subprogram body
	is the proper body of a subunit, the cloned body must be inserted in
	the declarative list that contains the stub.

2018-05-25  Justin Squirek  <squirek@adacore.com>

	* exp_ch6.adb (Expand_Simple_Function_Return): Add guard in check to
	generate code for 6.5(8-10) so that we don't get an assertion error
	when dealing with an incomplete return type.

2018-05-25  Arnaud Charlet  <charlet@adacore.com>

	* pprint.adb (Expression_Name): Strip too long expressions to avoid
	carrying very large strings.

2018-05-25  Patrick Bernardi  <bernardi@adacore.com>

	* switch-b.adb (Scan_Binder_Switches): binder switch -Q accepts Natural
	numbers.

2018-05-25  Doug Rupp  <rupp@adacore.com>

	* tracebak.c (aarch64-linux): Implement.

2018-05-25  Justin Squirek  <squirek@adacore.com>

	* sem_ch8.adb: Minor reformatting.

2018-05-25  Piotr Trojanek  <trojanek@adacore.com>

	* sem_util.adb (Iterate_Call_Parameters): Fix code convention and
	assertions.

2018-05-25  Hristian Kirtchev  <kirtchev@adacore.com>

	* einfo.adb, einfo.ads, exp_ch3.adb, exp_ch8.adb, exp_unst.adb,
	pprint.adb, sem_ch12.adb, sem_ch3.adb, sem_prag.adb, sem_util.adb:
	Minor reformatting.

2018-05-25  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch12.adb (Instance_Exists): New function, subsidiary of
	Validate_Derived_Type_Instance, to verify that all interfaces
	implemented by the formal type are also implemented by the actual. The
	verification is complicated when an interface of the formal is declared
	in a generic unit and the actual is declared in an instance of it.
	There is currently no mechanism to relate an interface declared within
	a generic to the corresponding interface in an instance, so we must
	traverse the list of interfaces of the actual, looking for a name
	match, and verifying that that interface is declared in an instance.

2018-05-25  Piotr Trojanek  <trojanek@adacore.com>

	* sem_util.adb (Iterate_Call_Parameters): Rewrite with extra
	assertions; replace function versions of Next_Formal/Next_Actual with
	their procedural versions (which are more concise).

2018-05-25  Doug Rupp  <rupp@adacore.com>

	* libgnarl/s-osinte__aix.ads, libgnarl/s-osinte__android.ads,
	libgnarl/s-osinte__darwin.ads, libgnarl/s-osinte__freebsd.ads,
	libgnarl/s-osinte__hpux.ads, libgnarl/s-osinte__kfreebsd-gnu.ads,
	libgnarl/s-osinte__linux.ads, libgnarl/s-osinte__lynxos178e.ads,
	libgnarl/s-osinte__qnx.ads, libgnarl/s-osinte__rtems.ads
	(Relative_Timed_Wait): Remove.
	* libgnarl/s-tpopmo.adb (Timed_Sleep, Timed_Delay): Rewrite to allow
	for incremental looping. Remove references to Rel_Time and
	Relative_Timed_Wait.
	* libgnat/s-osprim__posix.adb, libgnat/s-osprim__posix2008.adb
	(Timed_Delay): Make separate.
	* libgnat/s-optide.adb: New separate procedure.
	* libgnat/s-osprim.ads (Max_System_Delay): New constant.
	* libgnat/s-osprim__lynxos.ads (Max_Sensible_Delay): Set to 6 months.
	(Max_System_Delay): New constant.

2018-05-25  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch12.adb (Validate_Derived_Type_Instance): Verify that the actual
	for a formal derived type implements all the interfaces declared for
	the formal.

2018-05-25  Yannick Moy  <moy@adacore.com>

	* sem_prag.adb (Check_Applicable_Policy): Deal specially with CodePeer
	and GNATprove modes when applicable policy is Ignore.

2018-05-25  Eric Botcazou  <ebotcazou@adacore.com>

	* freeze.adb (Freeze_Enumeration_Type): Do not give integer size to a
	boolean type with convention C.
	* libgnat/i-cexten.ads (bool): Change to boolean with convention C.
	* gcc-interface/decl.c (gnat_to_gnu_entity): Add new local variable
	FOREIGN and use it throughout the function.
	<E_Enumeration_Type>: Set precision 1 on boolean types with foreign
	convention.
	<E_Enumeration_Subtype>: Likewise for subtypes.
	<E_Record_Type>: Force the size of a storage unit on empty classes.
	* gcc-interface/utils.c (make_type_from_size) <BOOLEAN_TYPE>: Skip
	boolean types with precision 1 if the size is the expected one.

2018-05-25  Arnaud Charlet  <charlet@adacore.com>

	* pprint.adb (Expression_Name): Do not print non ASCII characters.

2018-05-25  Bob Duff  <duff@adacore.com>

	* libgnat/a-strunb__shared.ads, libgnat/a-stwiun__shared.ads,
	libgnat/a-stzunb__shared.ads: (Initialize, Adjust): Add pragma Inline.

2018-05-25  Bob Duff  <duff@adacore.com>

	* sem_util.ads: Minor comment fix.

2018-05-25  Ed Schonberg  <schonberg@adacore.com>

	* exp_unst.adb (Visit_Node): Restrict check for uplevel references in
	prefixes of array attributes, to prefixes that are entity names whose
	type is constrained.
	(Note_Uplevel_Bound): Verify that the bound is declared in an enclosing
	subprogram, as itype created for loops in pre/postcondition may appear
	in loops at the library level.

2018-05-25  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch13.adb (Build_Predicate_Functions): The predicate function
	declaration is inserted into the tree and analyzed at that point, so
	should not be reinserted when the body is constructed. Inside a
	generic, ensure that the body is not inserted twice in the tree.

2018-05-25  Yannick Moy  <moy@adacore.com>

	* sem_prag.adb (Check_Grouping): Modify test to ignore statements and
	declarations not coming from source.

2018-05-25  Fedor Rybin  <frybin@adacore.com>

	* doc/gnat_ugn/gnat_utility_programs.rst: Document new switch
	--copy-environment for gnattest.

2018-05-24  Piotr Trojanek  <trojanek@adacore.com>

	* sem_elab.adb (Non_Private_View): Simplify by removing a local Result
	variable.
	* sem_prag.adb (Get_Base_Subprogram): Same as above.

2018-05-24  Eric Botcazou  <ebotcazou@adacore.com>

	* fe.h (Set_Normalized_First_Bit): Declare.
	(Set_Normalized_Position): Likewise.
	* repinfo.adb (List_Record_Layout): Do not use irregular output for a
	variable position.  Fix minor spacing issue.
	* gcc-interface/decl.c (annotate_rep): If a field has a variable
	offset, compute the normalized position and annotate it in addition to
	the bit offset.

2018-05-24  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/trans.c (Handled_Sequence_Of_Statements_to_gnu):
	Constify and rename variables.  Fix formatting.
	(gnat_to_gnu) <N_Exception_Handler>: Minor tweak.
	<N_Raise_Statement>: Likewise.

2018-05-24  Javier Miranda  <miranda@adacore.com>

	* exp_ch8.adb (Build_Body_For_Renaming): Adding support to build the
	body of a variant record equality renaming.
	(Expand_N_Subprogram_Renaming_Declaration): Adapt the code to the new
	implementation of Build_Body_For_Renaming.
	* exp_ch3.ads (Build_Variant_Record_Equality): New library level
	function that factorizes the functionality needed by
	Build_Body_For_Renaming and Expand_Freeze_Record_Type to build the body
	of a variant record equality subprogram.
	* exp_ch3.adb (Build_Variant_Record_Equality): New subprogram.
	(Build_Variant_Record_Equality): New local procedure of
	Expand_Freeze_Record_Type containing all the code specific for freezing
	the record type that cannot be place in the new library level function.

2018-05-24  Ed Schonberg  <schonberg@adacore.com>

	* einfo.ads, einfo.adb (Is_Activation_Record): New flag on
	in_parameters, used when unesting subprograms for LLVM, to indicate
	that a generated parameter carries the activation record from the
	enclosing subprogram.
	* exp_unst.adb (Check_Static_Type): Handle array attributes of types
	whose bounds may contain up-level references that need to be added to
	an activation recoord.
	(Add_Extra_Formal): Set Is_Activation_Record on new formal.

2018-05-24  Yannick Moy  <moy@adacore.com>

	* pprint.adb (Expression_Image): Improve the printing of expressions,
	by taking more cases into account, in particular qualified expressions
	and aggregates.  Also count more the number of parentheses to close
	after the expression.

2018-05-24  Javier Miranda  <miranda@adacore.com>

	* sem_ch3.adb (Is_Visible_Component): For untagged types add missing
	check for renamed discriminants.
	* sem_ch4.adb (Analyze_Overloaded_Selected_Component,
	Analyze_Selected_Component, Check_Misspelled_Selector): For calls to
	Is_Visible_Component pass the associated selector node to allow
	checking renamed discriminants on untagged types.

2018-05-24  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch8.adb (Analyze_Use_Type): Do not assign the Prev_Use_Clause
	link to a use_type clause if this would cause an infinite loop in the
	machinery that detects redundant use clauses. This may happen when the
	redundant clauses appear in the context of a child unit and the context
	of its parent.

2018-05-24  Piotr Trojanek  <trojanek@adacore.com>

	* sinfo.ads: Fix grammar in comment.

2018-05-24  Justin Squirek  <squirek@adacore.com>

	* einfo.ads, einfo.adb (Append_Entity): Modified to use Link_Entities
	and manage doubly-linked entity chain.
	(Nested_Scenarios): Removed entity field used for optimization during
	 elaboration to make room for the new field Prev_Entity.
	(Link_Entities): Added to replace redundant calls to Set_Next_Entity
	and Set_Prev_Entity as well as centralize changes to the entity chain.
	(Predicated_Parent): Modified to use Node38.
	(Prev_Entity): Added to fetch new node field Prev_Entity in all entity
	types.
	(Remove_Entity): Moved from sem_util.
	(Set_Nested_Scenarios): Deleted.
	(Set_Predicated_Parent): Modified to use Node38.
	(Set_Prev_Entity): Added to set Prev_Entity field.
	(Set_Validated_Object): Modified to use Node38.
	(Unlink_Next_Entity): Added to process Prev_Entity when an unlinking
	action is required.
	(Validated_Object): Modified to use Node38.
	(Write_Field36_Name): Remove Nested_Scenarios, Validated_Object, and
	predicated parent cases.
	(Write_Field38_Name): Add predicated parent and Validated_Object cases.
	* sem_ch3.adb (Process_Subtype): Add guard to protect against
	inappropriate marking of Predicated_Parent to non-itype subtypes.
	(Make_Class_Wide_Type): Preserve Prev_Entity field and set in new type.
	(Copy_And_Swap): Add setting of Prev_Entity.
	(Build_derived_Record_Type): Replace Set_Next_Entity w/ Link_Entities.
	* sem_ch6.adb (Analyze_Subprogram_Body_Helper): Replace Set_Next_Entity
	w/ Link_Entities.
	(New_Overloaded_Entity): Remove block created to search for previous
	entities in the entity chain with relevant calls to Prev_Entity as well
	as replace duplicated code from Remove_Entity_And_Homonym with a call
	to that subprogram.
	* sem_ch7.adb (Exchange_Declarations): Replace Set_Next_Entity w/
	Link_Entities.
	* sem_elab.adb (Find_And_Process_Nested_Scenarios): Remove global and
	initial subprogram declarations related to Nested_Scenarios.
	(Process_Nested_Scenarios): Deleted.
	(Save_Scenario): Deleted.
	(Traverse_Body): Remove optimization for Nested_Scenarios so as to free
	node space in the entity tree.
	* sem_util.adb, sem_util.ads (Remove_Entity): Moved to einfo.
	(Remove_Entity_And_Homonym): Added to separate functionality of
	Remove_Entity from the homonym chain directly.
	* exp_attr.adb (Expand_N_Attribute_Reference): Replace Set_Next_Entity
	w/ Link_Entities and Unlink_Next_Entity.
	* exp_ch3.adb (Expand_N_Object_Declaration): Replace Set_Next_Entity w/
	Link_Entities.
	* exp_ch6.adb (Replace_Renaming_Declaration_Id): Replace
	Set_Next_Entity w/ Link_Entities.
	* exp_disp.adb (Expand_Dispatching_Call): Replace Set_Next_Entity w/
	Link_Entities and Unlink_Next_Entity.
	* exp_spark.adb (Expand_SPARK_N_Object_Renaming_Declaration): Replace
	call to Remove_Entity with its new incarnation.
	* exp_util.adb (New_Class_Wide_Subtype): Add setting of Prev_Entity.
	* freeze.adb (Freeze_Record_Type): Replace Set_Next_Entity w/
	Link_Entities.

2018-05-24  Hristian Kirtchev  <kirtchev@adacore.com>

	* sem_ch10.adb (Expand_Limited_With_Clause): Update the call to
	Install_Limited_Withed_Unit.
	(Expand_With_Clause): Update the call to Install_Withed_Unit.
	(Implicit_With_On_Parent): Update the call to Install_Withed_Unit.
	(Install_Context_Clauses): Update the call to Install_Withed_Unit.
	(Install_Limited_Context_Clauses): Update the calls to
	 Install_Limited_Withed_Unit.
	(Install_Limited_Withed_Unit): Renamed to better illustrate its
	purpose.
	(Install_Private_With_Clauses): Update the calls to Install_Withed_Unit
	and Install_Limited_Withed_Unit.
	(Install_With_Clause): Uninstall a limited with clause if a [private]
	with clause is given for the same package.
	(Install_Withed_Unit): Renamed to better illustrate its purpose.
	(Remove_Limited_With_Unit): New routine.

2018-05-24  Eric Botcazou  <ebotcazou@adacore.com>

	* raise-gcc.c (__gnat_SEH_error_handler): Remove prototype.
	(__gnat_personality_seh0): Adjust and beef up comments, and
	fix formatting throughout.
	(__gnat_adjust_context): Deal minimally with version 2.
	* seh_init.c (__gnat_map_SEH): Fix formatting.
	(_gnat_SEH_error_handler): Adjust comments.
	(__gnat_install_SEH_handler): Fix formatting.

2018-05-24  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_ch7.adb, sem_ch3.adb, sem_res.adb: Minor reformatting.

2018-05-24  Ed Schonberg  <schonberg@adacore.com>

	* exp_aggr.adb (Flatten): Add a warning on an others clause in an array
	aggregate with static bounds when named associations cover all index
	positions and the others clause is redundant.

2018-05-24  Raphael Amiard  <amiard@adacore.com>

	* libgnat/a-cohama.ads: Add documentation.

2018-05-24  Raphael Amiard  <amiard@adacore.com>

	* libgnat/a-convec.ads: Add documentation.

2018-05-24  Justin Squirek  <squirek@adacore.com>

	* exp_ch3.adb (Expand_N_Object_Declaration): Ignore raising an error in
	expansion for limited tagged types when the node to be expanded is a
	raise expression due to it not representing a valid object.
	* exp_ch5.adb (Expand_N_Assignment_Statement): Add exception to error
	message regarding assignments to limited types to ignore genereated
	code.

2018-05-24  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_util.adb (New_Class_Wide_Subtype): Capture and restore relevant
	Ghost-related attributes of the class-wide subtype because the copy
	clobbers them.

2018-05-24  Justin Squirek  <squirek@adacore.com>

	* sem_res.adb (Resolve_Entity_Name): Add guard to protect against
	marking use clauses as effective when the reference appears within
	generated code.

2018-05-24  Cyrille Comar  <comar@adacore.com>

	* doc/gnat_rm/the_gnat_library.rst: Fix typos.
	* gnat_rm.texi: Regenerate.

2018-05-24  Bob Duff  <duff@adacore.com>

	* exp_ch7.adb (Expand_Cleanup_Actions): Create a mark unconditionally
	for build-in-place functions with a caller-unknown-size result.
	(Create_Finalizer): For build-in-place functions with a
	caller-unknown-size result, check at run time whether we need to
	release the secondary stack.

2018-05-24  Hristian Kirtchev  <kirtchev@adacore.com>

	* sem_prag.adb (Analyze_Pragma): Use the full view of an internally
	generated incomplete type.

2018-05-24  Hristian Kirtchev  <kirtchev@adacore.com>

	* expander.adb (Expand): Update the save and restore of the Ghost
	region.
	* exp_ch3.adb (Freeze_Type): Likewise.
	* exp_disp.adb (Make_DT): Likewise.
	* exp_util.adb (Build_DIC_Procedure_Body): Likewise.
	(Build_DIC_Procedure_Declaration): Likewise.
	(Build_Invariant_Procedure_Body): Likewise.
	(Build_Invariant_Procedure_Declaration): Likewise.
	(Make_Predicate_Call): Likewise.
	* freeze.adb (Add_To_Result): Insert the freeze action of a living
	entity prior to the start of the enclosing ignored Ghost region.
	(Freeze_Entity): Update the save and restore of the Ghost region.
	* ghost.adb (Install_Ghost_Mode): Reimplemented.
	(Install_Ghost_Region): New routine.
	(Mark_And_Set_Ghost_Assignment): Install a region rather than a mode.
	(Mark_And_Set_Ghost_Body): Likewise.
	(Mark_And_Set_Ghost_Completion): Likewise.
	(Mark_And_Set_Ghost_Declaration): Likewise.
	(Mark_And_Set_Ghost_Instantiation): Likewise.
	(Mark_And_Set_Ghost_Procedure_Call): Likewise.
	(Name_To_Ghost_Mode): New routine.
	(Restore_Ghost_Region): New routine.
	* ghost.ads (Install_Ghost_Region): New routine.
	(Restore_Ghost_Region): New routine.
	* opt.ads: Add new global variable Ignored_Ghost_Region.
	* rtsfind.adb (Load_RTU): Update the save and restore of the Ghost
	region. Install a clean region.
	* sem.adb (Analyze): Likewise.
	(Do_Analyze): Likewise.
	* sem_ch3.adb (Analyze_Object_Declaration): Likewise
	(Derive_Progenitor_Subprograms): Use local variable Iface_Alias to
	capture the ultimate alias of the current primitive.
	(Process_Full_View): Update the save and restore of the Ghost region.
	Do not inherit DIC and invariant procedures.
	* sem_ch5.adb (Analyze_Assignment): Update the save and restore of the
	Ghost region.
	* sem_ch6.adb (Analyze_Procedure_Call): Likewise.
	(Analyze_Subprogram_Body_Helper): Likewise.
	* sem_ch7.adb (Analyze_Package_Body_Helper): Likewise.
	* sem_ch12.adb (Analyze_Package_Instantiation): Likewise.
	(Analyze_Subprogram_Instantiation): Likewise.
	(Instantiate_Package_Body): Likewise.
	(Instantiate_Subprogram_Body): Likewise.
	* sem_ch13.adb (Build_Predicate_Functions): Likewise.
	(Build_Predicate_Function_Declaration): Likewise.
	* sem_disp.adb
	(Add_Dispatching_Operation): Do not consider DIC and invariant
	procedures.
	(Check_Dispatching_Operation): Use Add_Dispatching_Operation to collect
	a dispatching subprogram.
	(Check_Operation_From_Private_View): Likewise.
	(Override_Dispatching_Operation): Likewise.
	* sem_prag.adb (Analyze_Contract_Cases_In_Decl_Part): Update the save
	and restore of the Ghost region.
	(Analyze_Initial_Condition_In_Decl_Part): Likewise.
	(Analyze_Pragma): Update the save and restore of the Ghost region.
	(Analyze_Pre_Post_Condition_In_Decl_Part): Likewise.
	* sem_util.adb (Is_Suitable_Primitive): New routine.
	* sem_util.ads (Is_Suitable_Primitive): New routine.
	* sinfo.ads: Update the section of Ghost regions.

2018-05-24  Piotr Trojanek  <trojanek@adacore.com>

	* doc/gnat_rm/implementation_defined_pragmas.rst (Contract_Cases):
	Change "condition" to "case guard" after renaming in the contract
	grammar.
	* gnat_rm.texi: Regenerate.

2018-05-24  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_util.adb (Expand_Static_Predicates_In_Choices): Indicate that the
	construct with discrete choices no longer contains a subtype with
	predicates since the expansion already handled this case.

2018-05-24  Hristian Kirtchev  <kirtchev@adacore.com>

	* freeze.adb (Wrap_Imported_Subprogram): Generate an unchecked
	conversion to the return type to avoid a side effect where an imported
	relocated function generates a new anonymous access type, whose
	accessibility level does not agree with with that of the wrapper.

2018-05-24  Javier Miranda  <miranda@adacore.com>

	* sem_util.adb (Abstract_Interface_List): Add missing support for
	private types whose full view is a synchronized type.
	* sem_ch3.adb (Build_Derived_Private_Type): Skip building the full
	derivation of a private type parent type is a task type with
	discriminants as gigi does not use such type directly.

2018-05-24  Hristian Kirtchev  <kirtchev@adacore.com>

	* sem_elab.adb (Build_Variable_Reference_Marker): Do not create a
	variable marker when the reference appears in the formal part of a
	compilation unit instance because there is no place to insert it.
	(In_Compilation_Instance_Formal_Part): New routine.

2018-05-24  Piotr Trojanek  <trojanek@adacore.com>

	* layout.ads, repinfo.ads: Fix references to renamed Backend_Layout
	configuration parameter.

2018-05-24  Doug Rupp  <rupp@adacore.com>

	* argv-lynxos178-raven-cert.c: New file.
	* libgnat/system-lynxos178-x86.ads: New file.

2018-05-23  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_disp.adb, freeze.adb, gnat1drv.adb, sem_ch5.adb, sem_spark.adb:
	Minor reformattings.

2018-05-23  Pascal Obry  <obry@adacore.com>

	* adaint.c (win32_wait): Properly free the handle/pid lists when
	WaitForMultipleObjects fails (return WAIT_FAILED).

2018-05-23  Pascal Obry  <obry@adacore.com>

	* adaint.c (win32_wait): Add missing parentheses.

2018-05-23  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_ch3.adb (Check_Large_Modular_Array): Moved to Freeze.
	(Expand_N_Object_Declaration): Do not check for a large modular array
	here.
	* freeze.adb (Check_Large_Modular_Array): Moved from Exp_Ch3.
	(Freeze_Object_Declaration): Code cleanup. Check for a large modular
	array.
	* sem_ch3.adb: Minor reformatting.

2018-05-23  Ed Schonberg  <schonberg@adacore.com>

	* einfo.ads: New attribute on types: Predicated_Parent, to simplify the
	retrieval of the applicable predicate function to an itype created for
	a constrained array component.
	* einfo.adb: Subprograms for Predicated_Parent.
	(Predicate_Function): Use new attribute.
	* exp_util.adb (Make_Predicate_Call): If the predicate function is not
	available for a subtype, retrieve it from the base type, which may have
	been frozen after the subtype declaration and not captured by the
	subtype declaration.
	* sem_aggr.adb (Resolve_Array_Aggregate): An Others association is
	legal within a generated initiqlization procedure, as may happen with a
	predicate check on a component, when the predicate function applies to
	the base type of the component.
	* sem_ch3.adb (Analyze_Subtype_Declaration): Clean up inheritance of
	predicates for subtype declarations and for subtype indications in
	other contexts.
	(Process_Subtype): Likewise. Handle properly the case of a private type
	with unknown discriminants whose full view is an unconstrained array.
	Use Predicated_Parent to indicate source of predicate function on an
	itype whose parent is itself an itype.
	(Complete_Private_Subtype): If the private view has unknown
	discriminants and the full view is an unconstrained array, set base
	type of completion to the full view of parent.
	(Inherit_Predicate_Flags): Prevent double assignment of predicate
	function and flags.
	(Build_Subtype): For a constrained array component, propagate predicate
	information from original component type declaration.

2018-05-23  Boris Yakobowski  <yakobowski@adacore.com>

	* libgnat/a-ngelfu.ads (Arctanh, Arccoth): Fix faulty preconditions.

2018-05-23  Arnaud Charlet  <charlet@adacore.com>

	* checks.adb (Minimize_Eliminate_Overflows): Default initialize Lo and
	Hi.
	* sem_elab.adb: Make "out" parameters instead of "in out" when
	relevant.

2018-05-23  Bob Duff  <duff@adacore.com>

	* gnatbind.adb (List_Applicable_Restrictions): Add
	No_Implementation_Restrictions to the list of restrictions not to list.
	Remove double negative "not No_Restriction_List".  Comment the
	commentary that is output, so it won't cause errors if used directly in
	a gnat.adc.

2018-05-23  Ed Schonberg  <schonberg@adacore.com>

	* sem_prag.adb (Inherit_Class_Wide_Pre): Refine legality check on
	class-wide precondition on a type extension when ancestor does not have
	a class-wide precondition.  Previously the compiler accepted such a
	precondition when the ancestor had a class-wide postcondition.

2018-05-23  Javier Miranda  <miranda@adacore.com>

	* sem_attr.adb (Valid_Scalars): Do not invoke Error_Attr_P to report
	the warning on occurrences of this attribute whose evaluation is always
	true (since that subprogram aborts processing the attribute). In
	addition, replace the node by its boolean result 'True' (required
	because the backend has no knowledge of this attribute).

2018-05-23  Bob Duff  <duff@adacore.com>

	* libgnat/a-convec.adb: (Insert, Insert_Space): Suppress warnings. The
	code in question is not reachable in the case where Count_Type'Last is
	out of range.

2018-05-23  Yannick Moy  <moy@adacore.com>

	* doc/gnat_rm/implementation_defined_pragmas.rst: Clarify meaning of
	local pragma Warnings Off without On.
	* gnat_rm.texi: Regenerate.

2018-05-23  Olivier Hainque  <hainque@adacore.com>

	* libgnat/g-excact.ads (Is_Foreign_Exception): New predicate.
	* libgnat/g-excact.adb: Implement.

2018-05-23  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch5.adb (Analyze_Iterator_Specification): If a subtype indication
	is present, verify its legality when the domain of iteration is a
	GNAT-specific formal container, as is already done for arrays and
	predefined containers.

2018-05-23  Yannick Moy  <moy@adacore.com>

	* sem_util.adb (Enclosing_Declaration): Fix the case of a named number
	declaration, which was not taken into account.

2018-05-23  Hristian Kirtchev  <kirtchev@adacore.com>

	* debug.adb: Switch -gnatd_s is now used to stop elaboration checks on
	synchronized suspension.
	* rtsfind.ads: Add entries for units Ada.Synchronous_Barriers and
	Ada.Synchronous_Task_Control and routines Suspend_Until_True and
	Wait_For_Release.
	* sem_elab.adb: Document switch -gnatd_s.
	(In_Task_Body): New routine.
	(Is_Potential_Scenario): Code cleanup. Stop the traversal of a task
	body when the current construct denotes a synchronous suspension call,
	and restriction No_Entry_Calls_In_Elaboration_Code or switch -gnatd_s
	is in effect.
	(Is_Synchronous_Suspension_Call): New routine.
	* switch-c.adb (Scan_Front_End_Switches): Switch -gnatJ now sets switch
	-gnatd_s.

2018-05-23  Javier Miranda  <miranda@adacore.com>

	* exp_disp.adb (Make_DT): Restrict the initialization of
	External_Tag and Expanded_Name to an empty string to the case where
	both pragmas apply (i.e. No_Tagged_Streams and Discard_Names), since
	restricted runtimes are compiled with pragma Discard_Names.
	* doc/gnat_rm/implementation_defined_pragmas.rst,
	doc/gnat_rm/implementation_defined_characteristics.rst: Add
	documentation.
	* gnat_rm.texi: Regenerate.

2018-05-23  Maroua Maalej  <maalej@adacore.com>

	* sem_spark.adb: Fix of some permission rules of pointers in SPARK.

2018-05-23  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch5.adb (Preanalyze_Range): The pre-analysis of the domain of
	iteration of an Ada2012 loop is performed to determine the type of the
	domain, but full analysis is performed once the loop is rewritten as a
	while-loop during expansion. The pre-analysis suppresses expansion; it
	must also suppress the generation of freeze nodes, which may otherwise
	appear in the wrong scope before rewritting.

2018-05-23  Hristian Kirtchev  <kirtchev@adacore.com>

	* sem_elab.adb: Update the section on suppressing elaboration warnings.

2018-05-23  Hristian Kirtchev  <kirtchev@adacore.com>

	* einfo.adb (Is_Elaboration_Checks_OK_Id): Use predicate
	Is_Elaboration_Target.
	(Is_Elaboration_Target): New routine.
	(Is_Elaboration_Warnings_OK_Id): Use predicate Is_Elaboration_Target.
	(Set_Is_Elaboration_Checks_OK_Id): Use predicate Is_Elaboration_Target.
	(Set_Is_Elaboration_Warnings_OK_Id): Use predicate
	Is_Elaboration_Target.
	* einfo.ads: Add new synthesized attribute Is_Elaboration_Target along
	with occurrences in nodes.
	(Is_Elaboration_Target): New routine.
	* sem_prag.adb (Analyze_Pragma): Suppress elaboration warnings when an
	elaboration target is subject to pragma Warnings (Off, ...).

2018-05-23  Eric Botcazou  <ebotcazou@adacore.com>

	* repinfo.adb (List_Type_Info): Remove obsolete stuff.

2018-05-23  Hristian Kirtchev  <kirtchev@adacore.com>

	* einfo.adb: Flag304 is now Is_Elaboration_Warnings_OK_Id.
	(Is_Elaboration_Warnings_OK_Id): New routine.
	(Set_Is_Elaboration_Warnings_OK_Id): New routine.
	(Write_Entity_Flags): Output Flag304.
	* einfo.ads: Add new attribute Is_Elaboration_Warnings_OK_Id along with
	occurrences in entities.
	(Is_Elaboration_Warnings_OK_Id): New routine along with pragma Inline.
	(Set_Is_Elaboration_Warnings_OK_Id): New routine along with pragma
	Inline.
	* sem_attr.adb (Analyze_Access_Attribute): Capture the state of
	elaboration warnings.
	* sem_ch3.adb (Analyze_Object_Declaration): Capture the state of
	elaboration warnings.
	* sem_ch6.adb (Analyze_Abstract_Subprogram_Declaration): Capture the
	state of elaboration warnings.
	(Analyze_Subprogram_Body_Helper): Capture the state of elaboration
	warnings.
	(Analyze_Subprogram_Declaration): Capture the state of elaboration
	warnings.
	* sem_ch9.adb (Analyze_Entry_Declaration): Capture the state of
	elaboration warnings.
	(Analyze_Single_Task_Declaration): Capture the state of elaboration
	warnings.
	(Analyze_Task_Type_Declaration): Capture the state of elaboration
	warnings.
	* sem_ch12.adb (Analyze_Generic_Package_Declaration): Capture the state
	of elaboration warnings.
	(Analyze_Generic_Subprogram_Declaration): Capture the state of
	elaboration warnings.
	* sem_elab.adb: Add a section on suppressing elaboration warnings.
	Type Processing_Attributes includes component Suppress_Warnings
	intended to suppress any elaboration warnings along a path in the
	graph.  Update Initial_State to include a value for this component.
	Types Target_Attributes and Task_Attriutes include component
	Elab_Warnings_OK to indicate whether the target or task has elaboration
	warnings enabled.  component Elab_Warnings_OK.
	(Build_Access_Marker): Propagate attribute
	Is_Elaboration_Warnings_OK_Node from the attribute to the generated
	call marker.
	(Extract_Instantiation_Attributes): Set the value for Elab_Warnings_OK.
	(Extract_Target_Attributes): Set the value for Elab_Warnings_OK.
	(Extract_Task_Attributes): Set the value for Elab_Warnings_OK.
	(Process_Conditional_ABE_Access): Suppress futher elaboration warnings
	when already in this mode or when the attribute or target have warnings
	suppressed.
	(Process_Conditional_ABE_Activation_Impl): Do not emit any diagnostics
	if warnings are suppressed.
	(Process_Conditional_ABE_Call): Suppress further elaboration warnings
	when already in this mode, or the target or call have warnings
	suppressed.
	(Process_Conditional_ABE_Call_Ada): Do not emit any diagnostics if
	warnings are suppressed.
	(Process_Conditional_ABE_Call_SPARK): Do not emit any diagnostics if
	warnings are suppressed.
	(Process_Conditional_ABE_Instantiation): Suppress further elaboration
	warnings when already in this mode or when the instantiation has
	warnings suppressed.
	(Process_Conditional_ABE_Instantiation_Ada): Do not emit any
	diagnostics if warnings are suppressed.
	(Process_Conditional_ABE_Variable_Assignment_Ada): Use the more
	specific Is_Elaboration_Warnings_OK_Id rather than Warnings_Off.
	(Process_Conditional_ABE_Variable_Assignment_SPARK): Use the more
	specific Is_Elaboration_Warnings_OK_Id rather than Warnings_Off.
	(Process_Task_Object): Suppress further elaboration warnings when
	already in this mode, or when the object, activation call, or task type
	have warnings suppressed. Update the processing state to indicate that
	the path goes through a task body.
	* sinfo.adb (Is_Elaboration_Warnings_OK_Node): Accept attribute
	references.
	(Set_Is_Elaboration_Warnings_OK_Node): Accept attribute references.
	* sinfo.ads: Attribute Is_Elaboration_Warnings_OK_Node now applies to
	attribute references.

2018-05-23  Piotr Trojanek  <trojanek@adacore.com>

	* einfo.ads: Minor reformatting.

2018-05-23  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch3.adb (Analyze_Object_Declaration): If expression is an
	anonymous_access_to_ subprogram formal, apply a conversion to force an
	accsssibility check that will fail statically, enforcing 3.10.2 (13).

2018-05-23  Daniel Mercier  <mercier@adacore.com>

	* gnat1drv.adb: Turn off length expansion in CodePeer mode.

2018-05-23  Bob Duff  <duff@adacore.com>

	* freeze.adb: (Check_Address_Clause): Deal with build-in-place
	aggregates in addition to build-in-place calls.

2018-05-23  Bob Duff  <duff@adacore.com>

	* einfo.ads: Minor reformatting.
	* sem_ch3.adb: Likewise.
	* sinfo.ads: Likewise.

2018-05-23  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_ch3.adb (Default_Initialize_Object): Do not optimize scalar array
	initialization when the component type has predicates.
	* exp_ch4.adb (Expand_N_Allocator): Do not optimize scalar array
	allocation when the component type has predicates.

2018-05-23  Hristian Kirtchev  <kirtchev@adacore.com>

	* einfo.adb, exp_disp.adb, sem_ch3.adb, sem_ch6.adb, sem_prag.adb:
	Minor reformatting.

2018-05-22  Justin Squirek  <squirek@adacore.com>

	* sem_ch6.adb (Analyze_Expression_Function): Propagate flags from the
	original function spec into the generated function spec due to
	expansion of expression functions during analysis.
	(Analyze_Subprogram_Body_Helper): Modify check on formal parameter
	references from the body to the subprogram spec in the case of
	expression functions because of inconsistances related to having a
	generated body.
	* libgnarl/s-osinte__android.ads: Flag parameters as unused.
	* libgnarl/s-osinte__lynxos178e.ads: Likewise.
	* libgnarl/s-osinte__qnx.adb: Likewise.
	* libgnarl/s-osinte__qnx.ads: Likewise.

2018-05-22  Doug Rupp  <rupp@adacore.com>

	* init.c (HAVE_ADJUST_CONTEXT_FOR_RAISE): Don't define on VxWorks7 for
	AArch64.

2018-05-22  Olivier Hainque  <hainque@adacore.com>

	* libgnat/a-except.adb (Exception_Propagation.Propagate_Exception):
	Expect an Exception_Occurence object, not an Access.
	(Complete_And_Propagate_Occurrence): Adjust accordingly.
	(Raise_From_Signal_Handler): Likewise.
	(Reraise_Occurrence_No_Defer): If we have a Machine_Occurrence
	available in the provided occurrence object, just re-propagate the
	latter as a bare "raise;" would do.
	* libgnat/a-exexpr.adb (Propagate_Exception): Adjust to spec change.
	* libgnat/a-exstat.adb (String_To_EO): Initialize X.Machine_Occurrence
	to null, to mark that the occurrence we're crafting from the stream
	contents is not being propagated (yet).

2018-05-22  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_aggr.adb (Initialize_Ctrl_Record_Component): Insert the generated
	code for a transient component in line with the rest of the
	initialization code, rather than before the aggregate. This ensures
	that the component has proper visibility of the discriminants.

2018-05-22  Jerome Lambourg  <lambourg@adacore.com>

	* adaint.c: Reorganize QNX-specific macros, use syspage to retreive the
	number of CPUs.

2018-05-22  Jerome Lambourg  <lambourg@adacore.com>

	* sigtramp-qnx.c: Properly restore link register in signal trampoline.

2018-05-22  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_aggr.adb (Aggr_Assignment_OK_For_Backend): Strip away any
	conversions before extracting the value of the expression.
	* exp_ch3.adb (Default_Initialize_Object): Optimize the default
	initialization of an array of scalars.
	(Get_Simple_Init_Val): Add processing for array types. Remove the
	processing of strings because this case is already handled by the array
	case.
	(Needs_Simple_Initialization): Moved to Sem_Util.
	(Simple_Init_Array_Type): New routine.
	(Simple_Init_Initialize_Scalars_Type): Reimplemented to use the new
	facilities from Sem_Util.
	(Simple_Initialization_OK): New routine.
	* exp_ch3.ads (Needs_Simple_Initialization): Moved to Sem_Util.
	* exp_ch4.adb (Expand_N_Allocator): Optimize the default allocation of
	an array of scalars.
	* sem_prag.adb (Analyze_Float_Value): New routine.
	(Analyze_Integer_Value): New routine.
	(Analyze_Pragma): Reimplement the analysis of pragma Initialize_Scalars
	to handled the extended form of the pragma.
	(Analyze_Type_Value_Pair): New routine.
	* sem_util.adb: Add invalid value-related data structures.
	(Examine_Array_Bounds): New routine.
	(Has_Static_Array_Bounds): Reimplemented.
	(Has_Static_Non_Empty_Array_Bounds): New routine.
	(Invalid_Scalar_Value): New routine.
	(Needs_Simple_Initialization): Moved from Exp_Ch3.
	(Set_Invalid_Scalar_Value): New routines.
	* sem_util.ads (Has_Static_Non_Empty_Array_Bounds): New routine.
	(Invalid_Scalar_Value): New routine.
	(Needs_Simple_Initialization): Moved from Exp_Ch3.
	(Set_Invalid_Scalar_Value): New routines.
	* snames.ads-tmpl: Add names for the salar type families used by pragma
	Initialize_Scalars.

2018-05-22  Javier Miranda  <miranda@adacore.com>

	* exp_disp.adb (Make_DT): Initialize the External_Tag with an empty
	string when pragma No_Tagged_Streams is applicable to the tagged type,
	and initialize the Expanded_Name with an empty string when pragma
	Discard_Names is applicable to the tagged type.

2018-05-22  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch6.adb (Check_Conformance): Add RM reference for rule that a
	formal subprogram is never subtype conformqnt, and thus cannot be the
	prefix of 'Access.  Reject as well the attribute when applied to a
	renaming of a formal subprogram.

2018-05-22  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_ch3.adb (Build_Array_Init_Proc): Update the call to
	Needs_Simple_Initialization.
	(Build_Init_Statements): Update the call to Get_Simple_Init_Val.
	(Check_Subtype_Bounds): Renamed to Extract_Subtype_Bounds. Update the
	profile and comment on usage.
	(Default_Initialize_Object): Do not use New_Copy_Tree to set the proper
	Sloc of a value obtained from aspect Default_Value because this could
	potentially replicate large trees. The proper Sloc is now set in
	Get_Simple_Init_Val.
	(Get_Simple_Init_Val): Reorganized by breaking the various cases into
	separate routines. Eliminate the use of global variables.
	(Init_Component): Update the call to Get_Simple_Init_Val.
	(Needs_Simple_Initialization): Update the parameter profile and all
	uses of T.
	(Simple_Init_Defaulted_Type): Copy the value of aspect Default_Value
	and set the proper Sloc.
	* exp_ch3.ads (Get_Simple_Init_Val): Update the parameter profile and
	comment on usage.
	(Needs_Simple_Initialization): Update the parameter profile.

2018-05-22  Patrick Bernardi  <bernardi@adacore.com>

	* sem_ch3.adb (Build_Discriminant_Constraints): Raise an error if the
	user tries to use a subtype indication as a discriminant constraint.

2018-05-22  Ed Schonberg  <schonberg@adacore.com>

	* exp_ch4.ads, exp_ch4.adb, exp_util.adb, expander.adb: Remove mention
	of N_Reduction_Expression and N_Reduction_Expression_Parameter.
	* par-ch4.adb: Remove parsing routines for reduction expressions.
	* sem.adb, sinfo.ads, sinfo.adb, sem_ch4.ads, sem_ch4.adb, sem_res.adb,
	sem_spark.adb, sprint.adb: Remove analysis routines for reduction
	expressions.

2018-05-22  Arnaud Charlet  <charlet@adacore.com>

	* sem_ch8.adb (Check_Frozen_Renaming): Do not emit error in
	Relaxed_RM_Semantics mode.

2018-05-22  Arnaud Charlet  <charlet@adacore.com>

	* comperr.adb (Delete_SCIL_Files): Take into account
	N_Generic_Package_Renaming_Declaration.

2018-05-22  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch3.adb (Search_Derivation_Levels): Whenever a parent type is
	private, use the full view if available, because it may include renamed
	discriminants whose values are stored in the corresponding
	Stored_Constraint.

2018-05-22  Ed Schonberg  <schonberg@adacore.com>

	* einfo.ads, einfo.adb: New attribute Hidden_In_Formal_Instance,
	defined on packages that are actuals for formal packages, in order to
	set/reset the visibility of the formals of a formal package with given
	actuals, when there are subsequent uses of those formals in the
	enclosing generic, as required by RN 12.7 (10).
	* atree.ads, atree.adb: Add operations for Elist30.
	* atree.h: Add Elist30.
	* sem_ch12.adb (Analyze_Formal_Package_Instantiation): Collect formals
	that are not defaulted and are thus not visible within the current
	instance.
	(Check_Formal_Packages): Reset visibility of formals of a formal
	package that are not defaulted, on exit from current instance.

2018-05-22  Hristian Kirtchev  <kirtchev@adacore.com>

	* sem_prag.adb (Analyze_Input_Output): Emit an error when a non-null,
	non-'Result output appears in the output list of a function.

2018-05-22  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_attr.adb (Build_Array_VS_Func): Reimplemented.
	(Build_Record_VS_Func): Reimplemented.
	(Expand_N_Attribute): Reimplement the handling of attribute
	'Valid_Scalars.
	* sem_attr.adb (Analyze_Attribute): Reimplement the handling of
	attribute 'Valid_Scalars.
	* sem_util.adb (Scalar_Part_Present): Reimplemented.
	(Validated_View): New routine.
	* sem_util.ads (Scalar_Part_Present): Update the parameter profile and
	comment on usage.
	(Validated_View): New routine.
	* doc/gnat_rm/implementation_defined_attributes.rst: Update the
	documentation of attribute 'Valid_Scalars.
	* gnat_rm.texi: Regenerate.

2018-05-22  Bob Duff  <duff@adacore.com>

	* binde.adb: (Choose): Ignore a pragma Elaborate_Body that appears in
	the spec of a SAL_Interface package.

2018-05-22  Ed Schonberg  <schonberg@adacore.com>

	* freeze.adb (Freeze_Entity): When analyzing delayed aspects of an
	entity E within a generic unit, indicate that there are no remaining
	delayed aspects after invoking Analyze_Aspects_At_Freeze_Point. The
	entity E is not frozen yet but the aspects should not be reanalyzed at
	the freeze point, which may be outside of the generic and may not have
	the proper visibility.

2018-05-22  Bob Duff  <duff@adacore.com>

	* doc/gnat_ugn/gnat_utility_programs.rst: Add documentation for
	the new --split-line-before-record, --indent-named-statements and
	--no-align-modes gnatpp switches.

2018-05-22  Ed Schonberg  <schonberg@adacore.com>

	* sem_prag.adb (Process_Compile_Time_Warning_Or_Error): Handle properly
	a second argument that is a constant of a given string value.

2018-05-22  Doug Rupp  <rupp@adacore.com>

	* sigtramp-vxworks-target.inc: Align stack to 128bits on AArch64.

2018-05-22  Jerome Lambourg  <lambourg@adacore.com>

	* sigtramp-qnx.c: Fix stack alignment issue in the signal trampoline.

2018-05-22  Ed Schonberg  <schonberg@adacore.com>

	* freeze.adb (Freeze_Fixed_Point_Type): If the first subtype has
	delayed aspects, analyze them now, os that the representation of the
	type (size, bounds) can be computed and validated.

2018-05-22  Olivier Hainque  <hainque@adacore.com>

	* libgnat/s-dwalin.adb (Enable_Cache): Skip symbols outside of the
	executable code section boundaries.

2018-05-22  Javier Miranda  <miranda@adacore.com>

	* locales.c: New implementation for the Ada.Locales package.
	* libgnat/a-locale.ads: Remove comment indicating that this is not
	implemented.
	* doc/gnat_rm/standard_library_routines.rst: Remove comment indicating
	that this is not implemented.
	* gnat_rm.texi: Regenerate.

2018-05-22  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_ch5.adb, freeze.adb, pprint.adb, sem_ch4.adb, sem_res.adb: Minor
	reformattings.

2018-05-22  Justin Squirek  <squirek@adacore.com>

	* sem_ch12.adb (In_Same_Declarative_Part): Moved to sem_util.
	(Freeze_Subprogram_Body, Install_Body): Modify calls to
	In_Same_Declarative_Part.
	* sem_prag.adb (Analyze_Pragma-Pragma_Pure_Function): Add check to
	verify pragma declaration is within the same declarative list with
	corresponding error message.
	* sem_util.adb, sem_util.ads (In_Same_Declarative_Part): Moved from
	sem_ch12.adb and generalized to be useful outside the scope of
	freezing.

2018-05-22  Hristian Kirtchev  <kirtchev@adacore.com>

	* sem_ch6.adb (Analyze_Subprogram_Declaration): Set the proper
	categorization of the unit after processing the aspects in case one of
	its aspects is converted into a categorization pragma.

2018-05-21  Ed Schonberg  <schonberg@adacore.com>

	* freeze.adb (Warn_Overlay): Do not emit a wawrning on an object
	declaration with an explicit address clause and a type with default
	initialization, if the declaration carries an aspect
	Suppress_Initialization.

2018-05-21  Daniel Mercier  <mercier@adacore.com>

	* pprint.adb: Use mixed case for attribute names.

2018-05-21  Hristian Kirtchev  <kirtchev@adacore.com>

	* sem_ch6.adb (Analyze_Generic_Subprogram_Body): Rename the call to
	Analyze_Aspect_Specifications_On_Body_Or_Stub.
	(Analyze_Subprogram_Body_Helper): Rename the calls to
	Analyze_Aspect_Specifications_On_Body_Or_Stub.
	* sem_ch9.adb (Analyze_Entry_Body): Rename the call to
	Analyze_Aspect_Specifications_On_Body_Or_Stub.
	* sem_ch10.adb: Add with and use clause for Sem_Ch13.
	(Analyze_Package_Body_Stub): Add constant Id. Decorate the package stub
	prior to analyzing its aspects.
	(Analyze_Protected_Body_Stub): Add constant Id. Decorate the package
	stub prior to analyzing its aspects. Save and restore the configuration
	switches.
	(Analyze_Task_Body_Stub): Add constant Id. Decorate the package stub
	prior to analyzing its aspects.
	* sem_ch13.adb (Analyze_Aspect_Specifications_On_Body_Or_Stub): Renamed
	to Analyze_Aspects_On_Subprogram_Body_Or_Stub.
	* sem_ch13.ads (Analyze_Aspect_Specifications_On_Body_Or_Stub): Renamed
	to Analyze_Aspects_On_Subprogram_Body_Or_Stub.
	* sem_prag.adb: Code reformatting.
	(Analyze_Refined_Depends_Global_Post): Consider task body stubs.

2018-05-21  Jerome Lambourg  <lambourg@adacore.com>

	* gcc-interface/Makefile.in: Add g-soliop__qnx.ads to the runtime build
	for QNX.

2018-05-21  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_cg.adb: Remove with and use clause for Exp_Disp.
	* exp_ch9.adb: Remove with and use clause for Exp_Disp.
	* exp_disp.adb (Is_Predefined_Dispatching_Operation): Moved to Sem_Util.
	(Is_Predefined_Interface_Primitive): Moved to Sem_Util.
	(Is_Predefined_Internal_Operation): Moved to Sem_Util.
	* exp_disp.ads (Is_Predefined_Dispatching_Operation): Moved to Sem_Util.
	(Is_Predefined_Interface_Primitive): Moved to Sem_Util.
	(Is_Predefined_Internal_Operation): Moved to Sem_Util.
	* exp_dist.adb: Remove with and use clause for Exp_Disp.
	* freeze.adb: Remove with and use clause for Exp_Disp.
	* sem_cat.adb: Remove with and use clause for Exp_Disp.
	* sem_ch6.adb: Remove with and use clause for Exp_Disp.
	* sem_ch12.adb: Remove with and use clause for Exp_Disp.
	* sem_elab.adb (Check_Overriding_Primitive): Do not process predefined
	primitives.
	* sem_util.adb: Remove with and use clause for Exp_Disp.
	(Is_Predefined_Dispatching_Operation): Moved from Exp_Disp.
	(Is_Predefined_Interface_Primitive): Moved from Exp_Disp.
	(Is_Predefined_Internal_Operation): Moved from Exp_Disp.
	* sem_util.ads (Is_Predefined_Dispatching_Operation): Moved from
	Exp_Disp.
	(Is_Predefined_Interface_Primitive): Moved from Exp_Disp.
	(Is_Predefined_Internal_Operation): Moved from Exp_Disp.

2018-05-21  Ed Schonberg  <schonberg@adacore.com>

	* sem_res.adb (Valid_Conversion): Improve error message on an illegal
	type conversion whose expression has a limited view of a type.

2018-05-21  Ed Schonberg  <schonberg@adacore.com>

	* exp_ch5.adb (Build_Formal_Container_Iteration): If source has
	explicit name for iterator loop, preserve that name in expanded
	construct, for possible use in exit statements.

2018-05-21  Javier Miranda  <miranda@adacore.com>

	* sem_ch4.adb (Analyze_Membership_Op): Avoid compiler crash when the
	spec of a unit has Ada 2012 membership tests with multiple choices and
	the unit body is not compiled under Ada 2012 mode.

2018-05-21  Doug Rupp  <rupp@adacore.com>

	* sigtramp-vxworks-target.inc: Set cfa_reg properly from sigcontext
	pregs.
	(CFI_COMMON_REGS): Restore LR jic probed from prologue.
	(REGNO_PC_OFFSET): Change to correct value for Aarch64.

2018-05-21  Jose Ruiz  <ruiz@adacore.com>

	* doc/gnat_ugn/gnat_utility_programs.rst, exp_attr.adb,
	libgnarl/s-tassta.adb: Minor typo fixes

2018-05-21  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch4.adb (Analyze_One_Call): Recognize complex cases where an
	indexed call originally in prefix forn is itself the prefix of a
	further call.

2018-05-21  Piotr Trojanek  <trojanek@adacore.com>

	* sem_eval.adb (Is_Null_Range): Clarify access to the full view of a
	type.
	(Not_Null_Range): Same as above.

2018-05-21  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_ch3.adb: Minor reformatting.
	* exp_ch6.adb: Likewise.
	* freeze.adb: Likewise.
	* inline.adb: Likewise.
	* sem_util.adb: Likewise.

2018-05-21  Yannick Moy  <moy@adacore.com>

	* inline.adb (Expand_Inlined_Call.Process_Formals): Use a type
	conversion instead of an unchecked type conversion when inlining a
	return statement, unless type qualification is required (for character
	and string literal) or no check can result from the conversion (for
	access types).
	* opt.ads: Update comment.

2018-05-21  Hristian Kirtchev  <kirtchev@adacore.com>

	* sem_ch6.adb (Analyze_Subprogram_Body_Helper): Install the elaboration
	model of the compilation unit spec, if any.
	* sem_ch7.adb (Analyze_Package_Body_Helper): Install the elaboration
	model of the compilation unit spec, if any.
	* sem_ch10.adb (Analyze_Subunit): Install the elaboration model of the
	parent compilation unit spec, if any.
	* sem_elab.adb (Check_Elaboration_Scenarios): Restore the elaboration
	model of the main unit.
	(Is_Same_Unit): The routine now uses Unit_Entity.
	(Is_Subunit): Removed.
	(Normalize_Unit): Removed.
	(Unit_Entity): New routine.
	* sem_prag.adb (Analyze_Pragma): Reimplement the handling of pragma
	Elaboration_Checks. The analysis now ensures that the pragma appears at
	the configuration level, and on the initial declaration of a unit.
	Other placements are either flagged as illegal, or ignored.
	(Check_Duplicate_Elaboration_Checks_Pragma): New routine.
	(Ignore_Elaboration_Checks_Pragma): New routine.
	* sem_util.adb (Install_Elaboration_Model): New routine.
	* sem_util.ads (Install_Elaboration_Model): New routine.
	* doc/gnat_rm/implementation_defined_pragmas.rst: Update the
	documentation of pragma Elaboration_Checks.
	* gnat_rm.texi: Regenerate.

2018-05-21  Olivier Hainque  <hainque@adacore.com>

	* libgnat/s-trasym__dwarf.adb (Executable_Name): Return argv[0] instead
	of empty string when argv[0] couldn't be found on PATH.
	(Enable_Cache): Raise Program_Error instead of attempting a null
	pointer dereference when the Exec_Module initialization failed.

2018-05-21  Piotr Trojanek  <trojanek@adacore.com>

	* libgnarl/a-reatim.ads (Clock_Time): Remove External aspect.
	* libgnarl/a-taside.ads (Tasking_State): Likewise.
	* libgnat/a-calend.ads (Clock_Time): Likewise.

2018-05-21  Yannick Moy  <moy@adacore.com>

	* sem_ch6.adb (Analyze_Procedure_Call): Refine test to recognize prefix
	call notation in inlined call in GNATprove mode.

2018-05-21  Hristian Kirtchev  <kirtchev@adacore.com>

	* einfo.adb (Is_External_State): An abstract state is also external
	when it is declared with option "synchronous".
	* einfo.ads: Update the documentation of synthesized attribute
	Is_External_State.
	* sem_util.adb (Find_Simple_Properties): New routine.
	(Is_Enabled_External_Property): New routine.
	(State_Has_Enabled_Property): Reimplemented. The two flavors of option
	External have precedence over option Synchronous when determining
	whether a property is in effect.

2018-05-21  Yannick Moy  <moy@adacore.com>

	* sem_eval.adb (Static_Length): Take into account case of variable of
	subtype string literal.

2018-05-21  Olivier Hainque  <hainque@adacore.com>

	* libgnat/s-objrea.ads (Get_Memory_Bounds): Rename as Get_Xcode_Bounds.
	(Object_Section): Rename Flag_Alloc component as Flag_Xcode.
	* libgnat/s-objrea.adb (Get_Xcode_Bounds): Adjust to new subprogram and
	component name.
	(Get_Section, ELF case): Set Flag_Xcode from SHF_EXECINSTR.
	* libgnat/s-dwalin.adb (Open): Adjust to the Get_Memory_Bounds name
	change.

2018-05-21  Olivier Hainque  <hainque@adacore.com>

	* libgnat/s-dwalin.ads (Dwarf_Context): Change type of Load_Address to
	Address, and type of Low, High to Storage_Offset.
	(Low): Rename as Low_Address and convey that the return value is a
	runtime reference accounting for a load address.
	* libgnat/s-dwalin.adb (Read_Aranges_Entry): Adjust to the
	address/offset type changes.
	(Aranges_Lookup): Likewise.
	(Symbolic_Address): Likewise.
	(Symbolic_Traceback): Likewise.
	(Dump_Cache): Likewise.
	(Is_Inside): Likewise.
	(Open): Likewise.
	(Set_Load_Address): Likewise.
	(Low_Address): Likewise, and account for C.Load_Address.
	* libgnat/s-trasym__dwarf.adb (Lt): Use Low_Address instead of Low.
	(Multi_Module_Symbolic_Traceback): Compare address in traceback
	with module Low_Address instead of Low.

2018-05-21  Olivier Hainque  <hainque@adacore.com>

	* libgnat/s-dwalin.ads (Dwarf_Context): Rename Load_Slide as
	Load_Address.
	* libgnat/s-dwalin.adb (Is_Inside): Adjust accordingly.
	(Set_Load_Address): Likewise.
	(Symbolic_Traceback): Likewise.

2018-05-21  Olivier Hainque  <hainque@adacore.com>

	* libgnat/s-trasym__dwarf.adb (Add_Module_To_Cache): Expect a
	Load_Address argument and pass it down to Init_Module.
	* libgnat/s-tsmona__linux.adb (Build_Cache_For_All_Modules): Pass
	lm.l_addr as the Load_Address to Add_Module_To_Cache.

2018-05-21  Piotr Trojanek  <trojanek@adacore.com>

	* einfo.adb (Has_Discriminants): Stronger assertion.
	(Set_Has_Discriminants): Stronger assertion.
	* sem_ch13.adb (Push_Scope_And_Install_Discriminants): Adapt to respect
	the stronger assertion on Has_Discriminant.
	(Uninstall_Discriminants_And_Pop_Scope): Same as above.
	* sem_util.adb (New_Copy_Tree): Same as above.
	* sem_ch7.adb (Generate_Parent_References): Prevent calls to
	Has_Discriminant on non-type entities that might happen when the
	compiled code has errors.
	* sem_ch3.adb (Derived_Type_Declaration): Only call
	Set_Has_Discriminant on type entities.

2018-05-21  Arnaud Charlet  <charlet@adacore.com>

	* exp_unst.adb (Unnest_Subprogram): Unnest all subprograms relevant for
	code generation.

2018-05-21  Piotr Trojanek  <trojanek@adacore.com>

	* lib.ads: Fix typo in enumeration in comment.

2018-05-21  Ed Schonberg  <schonberg@adacore.com>

	* sem_attr.adb (Analyze_Attribute, case Scalar_Storage_Order): The
	attribute reference is legal within a generic unit when the prefix is a
	formal private type.

2018-05-21  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_ch7.adb (Establish_Transient_Scope): Code cleanup. Do not
	delegate the secondary stack management when there is no suitable
	transient context, and the transient scope was intended to manage the
	secondary stack because this causes premature reclamation. Change the
	transient scope creation logic by special casing assignment statements
	of controlled components for type initialization procedures.
	(Find_Node_To_Be_Wrapped): Renamed to Find_Transient_Context. Update
	the comment on usage.
	(Find_Transient_Context): Change the initinte loop into a while loop.
	Iterations schemes and iterator specifications are not valid transient
	contexts because they rely on special processing. Assignment statements
	are now treated as a normal transient context, special cases are
	handled by the caller. Add special processing for pragma Check.
	(Is_OK_Construct): Removed. Its functionality has been merged in
	routine Find_Transient_Context.
	* sem_ch5.adb (Check_Call): Reimplemented. Add code to properly
	retrieve the subprogram being invoked. Use a more accurate predicate
	(Requires_Transient_Scope) to determine that the function will emply
	the secondary stack.

2018-05-21  Piotr Trojanek  <trojanek@adacore.com>

	* ada_get_targ.adb: Fix subprogram body headers.
	* adabkend.adb: Likewise.
	* checks.adb: Likewise.
	* exp_ch3.adb: Likewise.
	* exp_ch5.adb: Likewise.
	* exp_ch9.adb: Likewise.
	* exp_dist.adb: Likewise.
	* exp_tss.adb: Likewise.
	* inline.adb: Likewise.
	* lib-writ.adb: Likewise.
	* lib-xref-spark_specific.adb: Likewise.
	* libgnarl/s-osinte__darwin.adb: Likewise.
	* libgnarl/s-stusta.adb: Likewise.
	* libgnarl/s-taprop__solaris.adb: Likewise.
	* libgnarl/s-tposen.adb: Likewise.
	* libgnarl/s-vxwext__kernel-smp.adb: Likewise.
	* libgnarl/s-vxwext__kernel.adb: Likewise.
	* libgnat/a-btgbso.adb: Likewise.
	* libgnat/a-cfdlli.adb: Likewise.
	* libgnat/a-cfhama.adb: Likewise.
	* libgnat/a-cfinve.adb: Likewise.
	* libgnat/a-cimutr.adb: Likewise.
	* libgnat/a-coboho.adb: Likewise.
	* libgnat/a-cofove.adb: Likewise.
	* libgnat/a-cofuve.adb: Likewise.
	* libgnat/a-comutr.adb: Likewise.
	* libgnat/a-exexda.adb: Likewise.
	* libgnat/a-tags.adb: Likewise.
	* libgnat/a-tideau.adb: Likewise.
	* libgnat/a-wtdeau.adb: Likewise.
	* libgnat/a-ztdeau.adb: Likewise.
	* libgnat/g-alleve.adb: Likewise.
	* libgnat/s-excdeb.adb: Likewise.
	* libgnat/s-parint.adb: Likewise.
	* libgnat/s-shasto.adb: Likewise.
	* libgnat/s-traceb__hpux.adb: Likewise.
	* prepcomp.adb: Likewise.
	* sem_ch4.adb: Likewise.
	* sem_ch6.adb: Likewise.
	* sem_dist.adb: Likewise.
	* sem_prag.adb: Likewise.
	* sem_util.adb: Likewise.
	* sinfo.adb: Likewise.
	* switch.adb: Likewise.

2018-05-04  John Marino  <gnugcc@marino.st>

	PR ada/85635
	* link.c (BSD platforms): Add missing backslash.

2018-04-27  Eric Botcazou  <ebotcazou@adacore.com>

	PR ada/85540
	* init.c (__gnat_handle_vms_condition): Add missing parentheses.

2018-04-25  Eric Botcazou  <ebotcazou@adacore.com>

	PR ada/85007
	* gnat_ugn.texi: Regenerate.

2018-03-23  Eric Botcazou  <ebotcazou@adacore.com>

	PR ada/85007
	* gnatlink.adb (Gnatlink): Remove handling of -b switch.
	* doc/gnat_ugn/building_executable_programs_with_gnat.rst (gnatlink):
	Remove documentation of -b switch.

2018-03-23  Eric Botcazou  <ebotcazou@adacore.com>

	PR ada/85036
	* gnatlink.adb (Process_Args): Drop existing link switches if multiple
	switches are passed for --LINK.

2018-03-12  Eric Botcazou  <ebotcazou@adacore.com>

	PR ada/82813
	* gcc-interface/misc.c (gnat_post_options): Disable string overflow
	warnings.

2018-03-10  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/trans.c (node_has_volatile_full_access) <N_Identifier>:
	Consider only entities for objects.

2018-03-07  Sebastian Huber  <sebastian.huber@embedded-brains.de>

	* gcc-interface/Makefile.in (OSCONS_CPP): Remove redundant
	$(GNATLIBCFLAGS).
	(OSCONS_EXTRACT): Add $(GNATLIBCFLAGS_FOR_C).

2018-03-06  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/trans.c (convert_with_check): Fix typo in the condition
	guarding the overflow check emitted for the upper bound of a floating-
	point conversion.

2018-03-06  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/utils.c (def_builtin_1): Bail out on error_mark_node.

2018-02-28  Eric Botcazou  <ebotcazou@adacore.com>

	* libgnat/i-cexten.ads (Float_128): New type.

2018-02-02  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/decl.c (array_type_has_nonaliased_component): Return
	false if the component type is a pointer.

2018-01-11  Gary Dismukes  <dismukes@adacore.com>

	* exp_ch3.adb (Default_Initialize_Object): Call New_Copy_Tree on the
	result of Get_Simple_Init_Value and pass the source location of the
	object declaration's object_definition.

2018-01-11  Ed Schonberg  <schonberg@adacore.com>

	* exp_ch6.adb (Make_Build_In_Place_Call_In_Object_Declaration): Handle
	properly object declarations with initializations that are
	build-in-place function calls, when there is an address specification,
	either as an aspect specification or an explicit attribute
	specification clause, for the initialized object.
	* freeze.adb (Check_Address_Clause): Do not remove side-effects from
	initial expressions in the case of a build-in-place call.

2018-01-11  Piotr Trojanek  <trojanek@adacore.com>

	* sem_eval.adb (Is_Null_Range): Retrieve the full view when called on a
	private (sub)type; refactor to avoid early return statement.
	(Not_Null_Range): Same as above.

2018-01-11  Hristian Kirtchev  <kirtchev@adacore.com>

	* freeze.adb (Freeze_Entity): Ensure that a Ghost type is not
	concurrent, nor effectively volatile.
	* ghost.adb (Check_Ghost_Type): New routine.
	* ghost.ads (Check_Ghost_Type): New routine.
	* sem_util.adb (Is_Declaration): Reimplemented. The routine can now
	consider specific subsets of declarations.
	(Is_Declaration_Other_Than_Renaming): Removed. Its functionality is
	replicated by Is_Declaration.
	* sem_util.ads (Is_Declaration): New parameter profile. Update the
	comment on usage.
	(Is_Declaration_Other_Than_Renaming): Removed.

2018-01-11  Hristian Kirtchev  <kirtchev@adacore.com>

	* sem_ch5.adb (Analyze_Assignment): Assignments to variables that act
	as Part_Of consituents of single protected types are illegal when they
	take place inside a protected function.
	(Diagnose_Non_Variable_Lhs): Use Within_Function to check for an
	enclosing function.
	(Is_Protected_Part_Of_Constituent): New routine.
	(Within_Function): New routine.

2018-01-11  Arnaud Charlet  <charlet@adacore.com>

	Bump copyright notices to 2018.

2018-01-11  Hristian Kirtchev  <kirtchev@adacore.com>

	* binde.adb, par-ch6.adb, par-ch9.adb, sem_ch12.adb, sem_ch13.adb:
	Minor reformatting.

2018-01-11  Justin Squirek  <squirek@adacore.com>

	* par-ch6.adb (Scan_Body_Or_Expression_Function): Add additional check
	to make sure a given expression function is properly parenthesized.

2018-01-11  Hristian Kirtchev  <kirtchev@adacore.com>

	* sem_ch6.adb (Analyze_Subprogram_Body_Helper): Check the
	categorization of a subprogram body which does not complete a previous
	declaration.

2018-01-11  Hristian Kirtchev  <kirtchev@adacore.com>

	* sem_ch10.adb (Check_Private_Child_Unit): Ensure that the enclosing
	scope of package Ada is Standard.

2018-01-11  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch13.adb (Replace_Type_Ref): Handle properly reference to a
	subcomponent of the current entity when building the body for a dynamic
	predicate function for a record with composite subcomponents.

2018-01-11  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_aggr.adb (Convert_Aggr_In_Object_Decl): Update the call to
	Establish_Transient_Scope.
	(Convert_To_Assignments): Update the call to Establish_Transient_Scope.
	(Expand_Array_Aggregate): Update the call to Establish_Transient_Scope.
	* exp_ch6.adb (Expand_Call_Helper): Update the call to
	Establish_Transient_Scope.
	(Make_Build_In_Place_Call_In_Object_Declaration): Update the call to
	Establish_Transient_Scope.
	* exp_ch7.adb (Establish_Transient_Scope): Restructured. Delegate the
	management of the secondary stack to an enclosing scope if there is no
	suitable construct to wrap, and the transient scope was intended to
	manage the secondary stack.
	(Find_Node_To_Be_Wrapped): Restructured. A case_statement_alternative
	is a valid boundary for a transient expression which comes from the
	statements of the alternative, otherwise alternatives cannot be
	wrapped. Assignments of controlled objects which have controlled
	actions suppressed now stop the traversal as there is no point in
	looking for an enclosing construct. Add several N_xxx_Body choices to
	the termination conditions for completeness.
	* exp_ch7.ads (Establish_Transient_Scope): Update the parameter profile
	and the associated comment on usage.
	* exp_smem.adb (Add_Shared_Var_Lock_Procs): Update the call to
	Establish_Transient_Scope.
	(Add_Write_After): Update the call to Establish_Transient_Scope.
	* sem_res.adb (Check_Initialization_Call): Removed.
	(Resolve_Actuals): Account for additional cases where finalization
	actions are required by utilizing predicate Needs_Finalization rather
	than Is_Controlled.
	(Resolve_Call): Type initialization procedures can now utilize
	transient scopes to manage the secondary stack, thus preventing leaks
	during initialization.  Remove the previous kludgy algorithm which
	attempts to manage the secondary stack at the object creation site.

2018-01-11  Jerome Lambourg  <lambourg@adacore.com>

	* libgnat/g-soliop__qnx.ads: New.
	* adaint.c, adaint.h, cstreams.c, s-oscons-tmplt.c, sysdep.c: Update
	for QNX.

2018-01-11  Bob Duff  <duff@adacore.com>

	* par-ch9.adb (P_Protected_Operation_Declaration_Opt): Give an error if
	a null procedure occurs in a protected definition.

2018-01-11  Bob Duff  <duff@adacore.com>

	* binderr.ads, namet.ads: Minor reformatting.

2018-01-11  Bob Duff  <duff@adacore.com>

	* doc/gnat_ugn/gnat_utility_programs.rst: Improve documentation of
	xml2gnat.

2018-01-11  Bob Duff  <duff@adacore.com>

	* binde.adb (Force_Elab_Order): Give an error if there are duplicate
	unit names.

2018-01-11  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch6.adb (Freeze_Expr_Types): If an access value is the
	controlling argument of a dispatching call. freeze the corresponding
	designated type.

2018-01-11  Ben Brosgol  <brosgol@adacore.com>

	* doc/Makefile: Add Sphinx option -W to treat warnings as errors.

2018-01-11  Ben Brosgol  <brosgol@adacore.com>

	* doc/gnat_rm/implementation_defined_aspects.rst: Minor type/wording
	corrections.
	* gnat_rm.texi: Regenerate.

2018-01-11  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch12.adb (Check_Fixed_Point_Type): Do not apply check if the
	formsl type corresponding to the actual fixed point type is private,
	because in this case there can be no suspicious arithmetic operations
	in the generic unless they reference a formal subprogram.  Clarify
	warning.

2018-01-11  Javier Miranda  <miranda@adacore.com>

	* exp_util.adb (Remove_Side_Effects): No action done for functions
	returning class-wide types since it requires generating code using
	'reference and the CCG target has no secondary stack.
	* gnat1drv.adb: Disable building static dispatch tables when generating
	C code.

2018-01-11  Piotr Trojanek  <trojanek@adacore.com>

	* libgnat/a-direio.ads, libgnat/a-sequio.ads, libgnat/a-ststio.ads,
	libgnat/a-textio.ads, libgnat/a-witeio.ads, libgnat/a-ztexio.ads
	(File_Type): Add Default_Initial_Condition aspect.

2018-01-11  Pascal Obry  <obry@adacore.com>

	* libgnat/s-os_lib.adb (Normalize_Pathname): New implementation.

2018-01-11  Bob Duff  <duff@adacore.com>

	* doc/gnat_ugn/gnat_utility_programs.rst: Rewrite gnatpp documentation
	to match what the Libadalang-based version does.
	* doc/gnat_ugn/about_this_guide.rst: Update reference.

2018-01-11  Hristian Kirtchev  <kirtchev@adacore.com>

	* sem_res.adb (Uses_SS): A controlled type requires the secondary stack
	if it contains at least one component declaration employing a function
	call returning on the secondary stack.

2018-01-11  Yannick Moy  <moy@adacore.com>

	* doc/gnat_rm/standard_and_implementation_defined_restrictions.rst:
	Update description of restriction SPARK_05 with SPARK 2014.
	* gnat_rm.texi: Regenerate.

2018-01-11  Vasiliy Fofanov  <fofanov@adacore.com>

	* doc/gnat_ugn/gnat_utility_programs.rst: Fix layout.

2018-01-11  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_aggr.adb, exp_ch9.adb, exp_util.adb, sem_aggr.adb, sem_ch3.adb,
	sem_res.adb, sem_util.adb: Minor reformatting.

2018-01-11  Ed Schonberg  <schonberg@adacore.com>

	* sem_prag.adb (Analyze_Pragma, case Predicate): Indicate that the type
	has a delayed aspect which must be processed at the point the type is
	frozen. This mimics what is done when the predicate is provided by a
	source aspect.

2018-01-11  Doug Rupp  <rupp@adacore.com>

	* init.c (vxworks): Add macro checks for __aarch64__.

2018-01-11  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_util.adb (Add_Failure_Expression): New routine.
	(Make_Predicate_Check): Reimplement the handling of Predicate_Failure.
	* sem_util.adb (Is_Current_Instance): Code cleanup.

2018-01-11  Patrick Bernardi  <bernardi@adacore.com>

	* libgnat/s-parame*.adb, libgnat/s-parame*.ads: Remove unneeded
	Default_Sec_Stack_Size.
	* libgnat/s-secsta.adb (SS_Allocate): Handle the fixed secondary stack
	limit check so that the integer index does not overflow. Check the
	dynamic stack allocation does not cause the secondary stack pointer to
	overflow.
	(SS_Info): Align colons.
	(SS_Init): Cover the case when bootstraping with an old compiler that
	does not set Default_SS_Size.

2018-01-11  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch3.adb (Add_Internal_Interface_Entities): When checking the
	legality of an inherited operation that may require overriding, ignore
	primitive_wrappers that correspond to explicit operations that override
	an interface primitive.
	* exp_util.adb (Build_Class_Wide_Expression, Replace_Entity): If the
	operation to which the class-wide expression applies is a protected op.
	with a primitive_wrapper, verify that the updated inherited expression
	does not contain an internal call to a protected function.  This
	completes the implementation of AI12-0166.

2018-01-11  Hristian Kirtchev  <kirtchev@adacore.com>

	* ali.adb: Document the remaining letters available for ALI lines.
	(Scan_ALI): A with clause is internal when it is encoded on a 'Z' line.
	* ali.ads: Update type With_Record. Field
	Implicit_With_From_Instantiation is no longer in use. Add field
	Implicit_With.
	* csinfo.adb (CSinfo): Remove the setup for attribute
	Implicit_With_From_Instantiation.
	* lib-writ.adb (Collect_Withs): Correct the logic which marks a unit as
	either implicitly or explicitly withed.
	(Is_Implicit_With_Clause): New routine.
	(Write_ALI): Rename array Implicit_With to Has_Implicit_With to avoid
	confusion with the with clause attribute by the same name.
	(Write_With_Lines): Update the emission of 'W', 'Y', and 'Z' headers.
	* rtsfind.adb (Maybe_Add_With): Code cleanup.
	* sem_ch8.adb (Present_System_Aux): Code cleanup.
	* sem_ch10.adb (Expand_With_Clause): Mark the with clause as generated
	for a parent unit.
	(Implicit_With_On_Parent): Mark the with clause as generated for a
	parent unit.
	* sem_ch12.adb (Inherit_Context): With clauses inherited by an
	instantiation are no longer marked as Implicit_With_From_Instantiation
	because they are already marked as implicit.
	* sem_elab.adb (Ensure_Prior_Elaboration_Static): Remove the kludge
	which marks implicit with clauses as related to an instantiation.
	* sinfo.adb (Implicit_With_From_Instantiation): Removed.
	(Parent_With): New routine.
	(Set_Implicit_With_From_Instantiation): Removed.
	(Set_Parent_With): New routine.
	* sinfo.ads: Update the documentation of attribute Implicit_With.
	Remove attribute Implicit_With_From_Instantiation along with
	occurrences in nodes.  Add attribute Parent_With along with occurrences
	in nodes.
	(Implicit_With_From_Instantiation): Removed along with pragma Inline.
	(Parent_With): New routine along with pragma Inline.
	(Set_Implicit_With_From_Instantiation): Removed along with pragma Inline.
	(Set_Parent_With): New routine along with pragma Inline.

2018-01-11  Hristian Kirtchev  <kirtchev@adacore.com>

	* sem_util.adb (Find_Enclosing_Scope): Return the unique defining
	entity when the enclosing construct is a body.

2018-01-11  Patrick Bernardi  <bernardi@adacore.com>

	* exp_ch9.adb (Expand_N_Task_Type_Declaration): Simplified
	Secondary_Stack_Size handling as a pragma is now generated for the
	corresponding aspect instead of an attribute.  Pragma expression is
	relocated instead of evaluated. Discriminant of the corresponding
	record type is referenced rather than the type discriminant.
	(Create_Secondary_Stack_For_Task, Make_Task_Create_Call): Update
	Secondary_Stack_Size rep item checks to only look for the pragma rep.
	* sem_ch13.adb (Analyze_One_Aspect): Transform
	Aspect_Secondary_Stack_Size into a pragma instead of an attribute
	because the attribute does not have visibility on a task type's
	discriminants when the type's definition is expanded.
	(Analyze_Attribute_Definition_Clause): Remove handling of
	Attribute_Secondary_Stack_Size.
	* snames.adb-tmpl, snames.ads-tmpl: Remove
	Attribute_Secondary_Stack_Size, no longer used.

2018-01-11  Justin Squirek  <squirek@adacore.com>

	* sem_ch8.adb: Minor comment fix.

2018-01-11  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_ch4.adb (Process_Action): Do not abandon the inspection of an
	individual action because the action may denote a complex expression,
	such as a case statement, which in turn may contain additional
	transient objects.

2018-01-11  Ed Schonberg  <schonberg@adacore.com>

	* sem_aggr.adb (Resolve_Iterated_Component_Association): Perform
	analysis on a copy of the expression with a copy of the index variable,
	because full expansion will rewrite construct into a loop with the
	original loop variable.
	* exp_aggr.adb (Gen_Assign): Defer analysis and resolution if the
	expression is an iterated component association. Full analysis takes
	place when construct is rewritten as a loop.
	(In_Place_Assign_OK, Safe_Component): An iterated_component_association
	is not safe for in-place assignment.
	* sem_util.adb (Remove_Entity): Handle properly the case of an isolated
	entity with no homonym and no other entity in the scope.

2018-01-11  Justin Squirek  <squirek@adacore.com>

	* sem_prag.adb (Analyze_Pragma:Pragma_Loop_Variant): Modify error
	message to be printed on the pragma argument identifier.

2018-01-11  Hristian Kirtchev  <kirtchev@adacore.com>

	* exp_util.adb (Build_Invariant_Procedure_Declaration): Set the last
	entity of the generated invariant procedure in order to construct a
	proper entity chain.

2018-01-11  Piotr Trojanek  <trojanek@adacore.com>

	* sem_ch13.adb (Build_Predicate_Functions): Fix minor issues in
	comment.

2018-01-11  Arnaud Charlet  <charlet@adacore.com>

	* einfo.ads, einfo.adb (Activation_Record_Component,
	Set_Activation_Record_Component, Set_Is_Uplevel_Referenced_Entity):
	Allow E_Discriminant.

2018-01-10  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc-interface/decl.c (gnat_to_gnu_component_type): Apply the check
	for atomic access once the component size is taken into account and
	also do it if the component type is Atomic or Volatile_Full_Access.

2018-01-04  Eric Botcazou  <ebotcazou@adacore.com>

	* gnatvsn.ads: Bump copyright year.

2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
	    Alan Hayward  <alan.hayward@arm.com>
	    David Sherwood  <david.sherwood@arm.com>

	* gcc-interface/misc.c (enumerate_modes): Treat GET_MODE_BITSIZE
	as polynomial.

2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
	    Alan Hayward  <alan.hayward@arm.com>
	    David Sherwood  <david.sherwood@arm.com>

	* gcc-interface/misc.c (enumerate_modes): Treat GET_MODE_PRECISION
	as polynomial.

2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
	    Alan Hayward  <alan.hayward@arm.com>
	    David Sherwood  <david.sherwood@arm.com>

	* gcc-interface/utils.c (gnat_types_compatible_p): Handle
	polynomial TYPE_VECTOR_SUBPARTS.

2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
	    Alan Hayward  <alan.hayward@arm.com>
	    David Sherwood  <david.sherwood@arm.com>

	* gcc-interface/misc.c (enumerate_modes): Handle polynomial
	GET_MODE_NUNITS.

2018-01-03  Jakub Jelinek  <jakub@redhat.com>

	Update copyright years.

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