diff --git a/llvm/lib/CodeGen/TargetPassConfig.cpp b/llvm/lib/CodeGen/TargetPassConfig.cpp
--- a/llvm/lib/CodeGen/TargetPassConfig.cpp
+++ b/llvm/lib/CodeGen/TargetPassConfig.cpp
@@ -1427,7 +1427,7 @@
 /// optimized register allocation, including coalescing, machine instruction
 /// scheduling, and register allocation itself.
 void TargetPassConfig::addOptimizedRegAlloc() {
-  addPass(&DetectDeadLanesID, false);
+  addPass(&DetectDeadLanesID);
 
   addPass(&ProcessImplicitDefsID, false);