1 files changed, 5 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Scalar/LoopUnswitch.cpp b/llvm/lib/Transforms/Scalar/LoopUnswitch.cpp
index 310f41e..0e861b6 100644
--- a/llvm/lib/Transforms/Scalar/LoopUnswitch.cpp
+++ b/llvm/lib/Transforms/Scalar/LoopUnswitch.cpp
@@ -500,6 +500,11 @@ bool LoopUnswitch::processCurrentLoop() {
       if (!CS) continue;
       if (CS.hasFnAttr(Attribute::Convergent))
         return false;
+      // Return false if any loop blocks contain invokes whose predecessor edges
+      // we cannot split.
+      if (auto *II = dyn_cast<InvokeInst>(&I))
+        if (!II->getUnwindDest()->canSplitPredecessors())
+          return false;
     }
   }