Fix checkDummy() for null pointers

tbaederr · tbaederr · commit e8469646c554 · 2023-10-26T15:27:54.000+02:00
diff --git a/clang/lib/AST/Interp/Interp.cpp b/clang/lib/AST/Interp/Interp.cpp
@@ -216,7 +216,7 @@ bool CheckLive(InterpState &S, CodePtr OpPC, const Pointer &Ptr,
 }
 
 bool CheckDummy(InterpState &S, CodePtr OpPC, const Pointer &Ptr) {
-  return !Ptr.isDummy();
+  return !Ptr.isZero() && !Ptr.isDummy();
 }
 
 bool CheckNull(InterpState &S, CodePtr OpPC, const Pointer &Ptr,

Original file line number	Diff line number	Diff line change
`@@ -216,7 +216,7 @@ bool CheckLive(InterpState &S, CodePtr OpPC, const Pointer &Ptr,`
`216`	`216`	`}`
`217`	`217`
`218`	`218`	`bool CheckDummy(InterpState &S, CodePtr OpPC, const Pointer &Ptr) {`
`219`		`- return !Ptr.isDummy();`
	`219`	`+ return !Ptr.isZero() && !Ptr.isDummy();`
`220`	`220`	`}`
`221`	`221`
`222`	`222`	`bool CheckNull(InterpState &S, CodePtr OpPC, const Pointer &Ptr,`