[Ada] Crash on function in Ghost subunit

[gcc.git] / gcc / ada / ChangeLog

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.
\f
Copyright (C) 2018 Free Software Foundation, Inc.

Copying and distribution of this file, with or without modification,
are permitted in any medium without royalty provided the copyright
notice and this notice are preserved.