* [Ada] Fix crash in SPARK ownership checking
@ 2019-07-04 8:50 Pierre-Marie de Rodat
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From: Pierre-Marie de Rodat @ 2019-07-04 8:50 UTC (permalink / raw)
To: gcc-patches; +Cc: Yannick Moy
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Analysis could crash on extended return of a non-deep type, now fixed.
This has no impact on compilation.
Tested on x86_64-pc-linux-gnu, committed on trunk
2019-07-04 Yannick Moy <moy@adacore.com>
gcc/ada/
* sem_spark.adb (Check_Statement): Only check permission of
object in extended return when it is of a deep type.
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--- gcc/ada/sem_spark.adb
+++ gcc/ada/sem_spark.adb
@@ -2902,10 +2902,13 @@ package body Sem_SPARK is
Check_List (Return_Object_Declarations (Stmt));
Check_Node (Handled_Statement_Sequence (Stmt));
- Perm := Get_Perm (Obj);
+ if Is_Deep (Etype (Obj)) then
+ Perm := Get_Perm (Obj);
- if Perm /= Read_Write then
- Perm_Error (Decl, Read_Write, Perm, Expl => Get_Expl (Obj));
+ if Perm /= Read_Write then
+ Perm_Error (Decl, Read_Write, Perm,
+ Expl => Get_Expl (Obj));
+ end if;
end if;
if Ekind_In (Subp, E_Procedure, E_Entry)
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