diff --git a/llvm/lib/CodeGen/CodeGen.cpp b/llvm/lib/CodeGen/CodeGen.cpp
index 51be4e3..d369160 100644
--- a/llvm/lib/CodeGen/CodeGen.cpp
+++ b/llvm/lib/CodeGen/CodeGen.cpp
@@ -54,6 +54,7 @@
   initializeLocalStackSlotPassPass(Registry);
   initializeLowerIntrinsicsPass(Registry);
   initializeMIRCanonicalizerPass(Registry);
+  initializeMIRNamerPass(Registry);
   initializeMachineBlockFrequencyInfoPass(Registry);
   initializeMachineBlockPlacementPass(Registry);
   initializeMachineBlockPlacementStatsPass(Registry);