2016-06-22 Hristian Kirtchev <kirtchev@adacore.com>

2016-06-22  Hristian Kirtchev  <kirtchev@adacore.com>

	* lib-xref-spark_specific.adb, a-cuprqu.ads, sem_ch6.adb: Minor
	reformatting.

2016-06-22  Eric Botcazou  <ebotcazou@adacore.com>

	* sem_util.ads (Address_Value): Declare new function.
	* sem_util.adb (Address_Value): New function extracted
	unmodified from Apply_Address_Clause_Check, which returns the
	underlying value of the expression of an address clause.
	* checks.adb (Compile_Time_Bad_Alignment): Delete.
	(Apply_Address_Clause_Check): Call Address_Value on
	the expression.  Do not issue the main warning here and
	issue the secondary warning only when the value of the
	expression is not known at compile time.
	* sem_ch13.adb (Address_Clause_Check_Record): Add A component and
	adjust the description.
	(Analyze_Attribute_Definition_Clause): In the case
	of an address, move up the code creating an entry in the table of
	address clauses.  Also create an entry for an absolute address.
	(Validate_Address_Clauses): Issue the warning for absolute
	addresses here too.  Tweak condition associated with overlays
	for consistency.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@237688 138bc75d-0d04-0410-961f-82ee72b054a4