2017-09-08 Bob Duff <duff@adacore.com>

	* par-prag.adb, sem_prag.adb, snames.ads-tmpl: Implement pragma
	Ada_2020, along the same lines as the other Ada version pragmas.

2017-09-08  Gary Dismukes  <dismukes@adacore.com>

	* sem_ch12.adb: Minor typo fixes and reformatting.

2017-09-08  Yannick Moy  <moy@adacore.com>

	* sem_aggr.adb (Resolve_Record_Aggregate):
	Rewrite bounds of aggregate subexpressions which may depend on
	discriminants of the enclosing aggregate.

2017-09-08  Yannick Moy  <moy@adacore.com>

	* sem_ch5.adb: Prevent assertion failure on illegal code.

2017-09-08  Yannick Moy  <moy@adacore.com>

	* lib-xref-spark_specific.adb (Add_SPARK_Xrefs.Is_SPARK_Scope): Avoid
	calling Renamed_Entity on an entity which cannot be a renaming.

2017-09-08  Eric Botcazou  <ebotcazou@adacore.com>

	* exp_aggr.adb: Add with & use clause for Urealp.
	(Aggr_Assignment_OK_For_Backend): Accept (almost all)
	elementary types instead of just discrete types.
	* sem_eval.adb (Expr_Value): Deal with N_Null for access types.
	* gcc-interface/trans.c (gnat_to_gnu) <N_Assignment_Statement>:
	Be prepared for the FP zero value in the memset case.  Add small
	guard.

2017-09-08  Eric Botcazou  <ebotcazou@adacore.com>

	* s-htable.adb (Static_HTable.Reset): Use aggregate instead
	of loop.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@251894 138bc75d-0d04-0410-961f-82ee72b054a4

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