1 files changed, 9 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/RegAllocBase.cpp b/llvm/lib/CodeGen/RegAllocBase.cpp
index 16ff48e78a7..1130d64689d 100644
--- a/llvm/lib/CodeGen/RegAllocBase.cpp
+++ b/llvm/lib/CodeGen/RegAllocBase.cpp
@@ -153,3 +153,12 @@ void RegAllocBase::allocatePhysRegs() {
     }
   }
 }
+
+void RegAllocBase::postOptimization() {
+  spiller().postOptimization();
+  for (auto DeadInst : DeadRemats) {
+    LIS->RemoveMachineInstrFromMaps(*DeadInst);
+    DeadInst->eraseFromParent();
+  }
+  DeadRemats.clear();
+}