[multiple changes]

[multiple changes]

2017-04-25  Hristian Kirtchev  <kirtchev@adacore.com>

	* sem_util.adb (Is_Post_State): A reference to a
	generic in out parameter is considered a change in the post-state
	of a subprogram.

2017-04-25  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch12.adb (Load_Parent_Of_Generic); When retrieving the
	declaration of a subprogram instance within its wrapper package,
	skip over null statements that may result from the rewriting of
	ignored pragmas.

2017-04-25  Ed Schonberg  <schonberg@adacore.com>

	* exp_attr.adb (Expand_Attribute_Reference, case 'Read):
	If the type is an unchecked_union, replace the attribute with
	a Raise_Program_Error (rather than inserting such before the
	attribute reference) to handle properly the case where we are
	processing a component of a larger record, and we need to prevent
	further expansion for the unchecked union.
	(Expand_Attribute_Reference, case 'Write): If the type is
	an unchecked_union, check whether enclosing scope is a Write
	subprogram. Replace attribute with a Raise_Program_Error if the
	discriminants of the unchecked_union type have not default values
	because such a use is erroneous..

2017-04-25  Tristan Gingold  <gingold@adacore.com>

	* exp_ch9.adb (Expand_N_Task_Type_Declaration):
	Add relative_deadline to task record on edf profile.
	(Make_Initialize_Protection): Pass deadline_floor value on edf profile.
	(Make_Task_Create_Call): Pass relative_deadline value.
	* par-prag.adb (Prag): Handle Pragma_Deadline_Floor.
	* s-rident.ads (Profile_Name): Add GNAT_Ravenscar_EDF.
	(Profile_Info): Add info for GNAT_Ravenscar_EDF.
	* sem_prag.adb (Set_Ravenscar_Profile): Handle
	GNAT_Ravenscar_EDF (set scheduling policy).
	(Analyze_Pragma): Handle GNAT_Ravenscar_EDF profile and Deadline_Floor
	pragma.
	(Sig_Flags): Add choice for Pragma_Deadline_Floor.
	* snames.ads-tmpl (Name_Deadline_Floor, Name_Gnat_Ravenscar_EDF):
	New names.
	(Pragma_Deadline_Floor): New pragma.
	* targparm.adb (Get_Target_Parameters): Recognize
	GNAT_Ravenscar_EDF profile.

From-SVN: r247221