diff --git a/llvm/lib/CodeGen/LLVMTargetMachine.cpp b/llvm/lib/CodeGen/LLVMTargetMachine.cpp
index 9eb43d2..b18a186 100644
--- a/llvm/lib/CodeGen/LLVMTargetMachine.cpp
+++ b/llvm/lib/CodeGen/LLVMTargetMachine.cpp
@@ -165,6 +165,11 @@
     if (PassConfig->addIRTranslator())
       return nullptr;
 
+    PassConfig->addPreLegalizeMachineIR();
+
+    if (PassConfig->addLegalizeMachineIR())
+      return nullptr;
+
     // Before running the register bank selector, ask the target if it
     // wants to run some passes.
     PassConfig->addPreRegBankSelect();