diff --git a/clang/lib/AST/Interp/Interp.h b/clang/lib/AST/Interp/Interp.h
index 241d5941e143e..13e004371f912 100644
--- a/clang/lib/AST/Interp/Interp.h
+++ b/clang/lib/AST/Interp/Interp.h
@@ -1680,7 +1680,7 @@ bool CastFloatingIntegral(InterpState &S, CodePtr OpPC) {
     auto Status = F.convertToInteger(Result);
 
     // Float-to-Integral overflow check.
-    if ((Status & APFloat::opStatus::opInvalidOp) && F.isFinite()) {
+    if ((Status & APFloat::opStatus::opInvalidOp)) {
       const Expr *E = S.Current->getExpr(OpPC);
       QualType Type = E->getType();
 
diff --git a/clang/test/AST/Interp/cxx20.cpp b/clang/test/AST/Interp/cxx20.cpp
index 2c28e53784c5c..000ffe39eb94a 100644
--- a/clang/test/AST/Interp/cxx20.cpp
+++ b/clang/test/AST/Interp/cxx20.cpp
@@ -765,3 +765,12 @@ namespace FailingDestructor {
     f<D{0, false}>(); // both-error {{no matching function}}
   }
 }
+
+
+void overflowInSwitchCase(int n) {
+  switch (n) {
+  case (int)(float)1e300: // both-error {{constant expression}} \
+                          // both-note {{value +Inf is outside the range of representable values of type 'int'}}
+    break;
+  }
+}