[Clang] Check that we have the correct RecordDecl (#111448)

bwendling · web-flow · commit 39ac121309f5 · 2024-10-07T22:53:00.000Z
Ensure we have the correct RecordDecl before returning the Expr we're
looking for.
diff --git a/clang/lib/CodeGen/CGExpr.cpp b/clang/lib/CodeGen/CGExpr.cpp
@@ -1096,7 +1096,7 @@ class StructAccessBase
   }
   const Expr *VisitCastExpr(const CastExpr *E) {
     if (E->getCastKind() == CK_LValueToRValue)
-      return E;
+      return IsExpectedRecordDecl(E) ? E : nullptr;
     return Visit(E->getSubExpr());
   }
   const Expr *VisitParenExpr(const ParenExpr *E) {

Original file line number	Diff line number	Diff line change
`@@ -1096,7 +1096,7 @@ class StructAccessBase`
`1096`	`1096`	`}`
`1097`	`1097`	`const Expr VisitCastExpr(const CastExpr E) {`
`1098`	`1098`	`if (E->getCastKind() == CK_LValueToRValue)`
`1099`		`- return E;`
	`1099`	`+ return IsExpectedRecordDecl(E) ? E : nullptr;`
`1100`	`1100`	`return Visit(E->getSubExpr());`
`1101`	`1101`	`}`
`1102`	`1102`	`const Expr VisitParenExpr(const ParenExpr E) {`