diff --git a/polly/lib/CodeGen/CodeGeneration.cpp b/polly/lib/CodeGen/CodeGeneration.cpp
--- a/polly/lib/CodeGen/CodeGeneration.cpp
+++ b/polly/lib/CodeGen/CodeGeneration.cpp
@@ -153,7 +153,7 @@
         switch (IT->getIntrinsicID()) {
         case Intrinsic::lifetime_start:
         case Intrinsic::lifetime_end:
-          BB->getInstList().erase(InstIt);
+          IT->eraseFromParent();
           break;
         default:
           break;