1 files changed, 5 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Instrumentation/ControlHeightReduction.cpp b/llvm/lib/Transforms/Instrumentation/ControlHeightReduction.cpp
index 3420256..3b4d80d 100644
--- a/llvm/lib/Transforms/Instrumentation/ControlHeightReduction.cpp
+++ b/llvm/lib/Transforms/Instrumentation/ControlHeightReduction.cpp
@@ -767,6 +767,11 @@ CHRScope * CHR::findScope(Region *R) {
   for (BasicBlock *Pred : predecessors(Entry))
     if (R->contains(Pred))
       return nullptr;
+  // If any of the basic blocks have address taken, we must skip this region
+  // because we cannot clone basic blocks that have address taken.
+  for (BasicBlock *BB : R->blocks())
+    if (BB->hasAddressTaken())
+      return nullptr;
   if (Exit) {
     // Try to find an if-then block (check if R is an if-then).
     // if (cond) {