Index: llvm/lib/Transforms/IPO/HotColdSplitting.cpp
===================================================================
--- llvm/lib/Transforms/IPO/HotColdSplitting.cpp
+++ llvm/lib/Transforms/IPO/HotColdSplitting.cpp
@@ -117,9 +117,10 @@
   if (blockEndsInUnreachable(BB)) {
     if (auto *CI =
             dyn_cast_or_null<CallInst>(BB.getTerminator()->getPrevNode()))
-      if (CI->hasFnAttr(Attribute::NoReturn))
-        return false;
-    return true;
+      if (CI->hasFnAttr(Attribute::NoReturn)) {
+        IntrinsicInst *II = dyn_cast<IntrinsicInst>(CI);
+        return II->getIntrinsicID() != Intrinsic::longjmp;
+      }
   }
 
   return false;