diff --git a/llvm/lib/CodeGen/SplitKit.cpp b/llvm/lib/CodeGen/SplitKit.cpp
index 2430161..5193cf4 100644
--- a/llvm/lib/CodeGen/SplitKit.cpp
+++ b/llvm/lib/CodeGen/SplitKit.cpp
@@ -668,6 +668,7 @@
     }
     if (LI) {
       MO.setReg(LI->reg);
+      sa_.removeUse(MI);
       DEBUG(dbgs() << "  rewrite " << Idx << '\t' << *MI);
     }
   }