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-rw-r--r--clang/lib/StaticAnalyzer/Core/ExprEngineC.cpp7
-rw-r--r--clang/test/Analysis/casts.cpp14
2 files changed, 21 insertions, 0 deletions
diff --git a/clang/lib/StaticAnalyzer/Core/ExprEngineC.cpp b/clang/lib/StaticAnalyzer/Core/ExprEngineC.cpp
index 5a306a5c5f2..1221ddff765 100644
--- a/clang/lib/StaticAnalyzer/Core/ExprEngineC.cpp
+++ b/clang/lib/StaticAnalyzer/Core/ExprEngineC.cpp
@@ -257,6 +257,13 @@ ProgramStateRef ExprEngine::handleLValueBitCast(
ProgramStateRef state, const Expr* Ex, const LocationContext* LCtx,
QualType T, QualType ExTy, const CastExpr* CastE, StmtNodeBuilder& Bldr,
ExplodedNode* Pred) {
+ if (T->isLValueReferenceType()) {
+ assert(!CastE->getType()->isLValueReferenceType());
+ ExTy = getContext().getLValueReferenceType(ExTy);
+ } else if (T->isRValueReferenceType()) {
+ assert(!CastE->getType()->isRValueReferenceType());
+ ExTy = getContext().getRValueReferenceType(ExTy);
+ }
// Delegate to SValBuilder to process.
SVal OrigV = state->getSVal(Ex, LCtx);
SVal V = svalBuilder.evalCast(OrigV, T, ExTy);
diff --git a/clang/test/Analysis/casts.cpp b/clang/test/Analysis/casts.cpp
index f96f19b0ac3..6499b20a79d 100644
--- a/clang/test/Analysis/casts.cpp
+++ b/clang/test/Analysis/casts.cpp
@@ -21,3 +21,17 @@ void intAsBoolAsSwitchCondition(int c) {
break;
}
}
+
+int *&castToIntPtrLValueRef(char *p) {
+ return (int *&)*(int *)p;
+}
+bool testCastToIntPtrLValueRef(char *p, int *s) {
+ return castToIntPtrLValueRef(p) != s; // no-crash
+}
+
+int *&&castToIntPtrRValueRef(char *p) {
+ return (int *&&)*(int *)p;
+}
+bool testCastToIntPtrRValueRef(char *p, int *s) {
+ return castToIntPtrRValueRef(p) != s; // no-crash
+}
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