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authorEd Schonberg <schonberg@adacore.com>2019-08-12 09:01:43 +0000
committerPierre-Marie de Rodat <pmderodat@gcc.gnu.org>2019-08-12 09:01:43 +0000
commit8e4ca4fcffbe6d3855f67cd02e0bb2a40d62fa10 (patch)
tree27d718c27b20a3167293c49845c134957c325ed9 /gcc/ada
parentfba9fcae321660fdc760fd293d92970e52489706 (diff)
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[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. From-SVN: r274305
Diffstat (limited to 'gcc/ada')
-rw-r--r--gcc/ada/ChangeLog6
-rw-r--r--gcc/ada/sem_util.adb1
2 files changed, 7 insertions, 0 deletions
diff --git a/gcc/ada/ChangeLog b/gcc/ada/ChangeLog
index 64f4c6b..74ceb50 100644
--- a/gcc/ada/ChangeLog
+++ b/gcc/ada/ChangeLog
@@ -1,3 +1,9 @@
+2019-08-12 Ed Schonberg <schonberg@adacore.com>
+
+ * sem_util.adb (Is_Expaned_Priority_Attribute): Check whether
+ call comes from a rewritten attribute before comparing name with
+ Get_Ceiling run-time subprogram.
+
2019-08-12 Eric Botcazou <ebotcazou@adacore.com>
* exp_util.ads (Component_May_Be_Bit_Aligned): Small comment
diff --git a/gcc/ada/sem_util.adb b/gcc/ada/sem_util.adb
index 42085c7..54ac0a4 100644
--- a/gcc/ada/sem_util.adb
+++ b/gcc/ada/sem_util.adb
@@ -14669,6 +14669,7 @@ package body Sem_Util is
return
Nkind (E) = N_Function_Call
and then not Configurable_Run_Time_Mode
+ and then Nkind (Original_Node (E)) = N_Attribute_Reference
and then (Entity (Name (E)) = RTE (RE_Get_Ceiling)
or else Entity (Name (E)) = RTE (RO_PE_Get_Ceiling));
end Is_Expanded_Priority_Attribute;