r274305 - in /trunk/gcc: ada/ChangeLog ada/sem_...

[pmderodat@gcc.gnu.org]

Author: pmderodat
Date: Mon Aug 12 09:01:43 2019
New Revision: 274305

URL: https://gcc.gnu.org/viewcvs?rev=274305&root=gcc&view=rev
Log:
[Ada] Crash on illegal left-hand side in assignment of renamed variable

This patch fixes a crash on an assignment where the left-hand side is a
renaming of a function call that does not involve ceiling priorities.
This avoids a compiler crash in some cases, and prevents a useless
retrieval and compilation of run-time packages.

2019-08-12  Ed Schonberg  <schonberg@adacore.com>

gcc/ada/

	* sem_util.adb (Is_Expaned_Priority_Attribute): Check whether
	call comes from a rewritten attribute before comparing name with
	Get_Ceiling run-time subprogram.

gcc/testsuite/

	* gnat.dg/renaming15.adb: New testcase.

Added:
    trunk/gcc/testsuite/gnat.dg/renaming15.adb
Modified:
    trunk/gcc/ada/ChangeLog
    trunk/gcc/ada/sem_util.adb
    trunk/gcc/testsuite/ChangeLog