diff --git a/lib/CodeGen/CMakeLists.txt b/lib/CodeGen/CMakeLists.txt
index 06fc3f32771..bddf16eebbc 100644
--- a/lib/CodeGen/CMakeLists.txt
+++ b/lib/CodeGen/CMakeLists.txt
@@ -14,6 +14,7 @@ add_llvm_library(LLVMCodeGen
   ELFCodeEmitter.cpp
   ELFWriter.cpp
   ExpandISelPseudos.cpp
+  ExpandPostRAPseudos.cpp
   GCMetadata.cpp
   GCMetadataPrinter.cpp
   GCStrategy.cpp
@@ -33,7 +34,6 @@ add_llvm_library(LLVMCodeGen
   LiveRangeCalc.cpp
   LiveRangeEdit.cpp
   LocalStackSlotAllocation.cpp
-  LowerSubregs.cpp
   MachineBasicBlock.cpp
   MachineBlockFrequencyInfo.cpp
   MachineBranchProbabilityInfo.cpp
diff --git a/lib/CodeGen/LowerSubregs.cpp b/lib/CodeGen/ExpandPostRAPseudos.cpp
similarity index 100%
rename from lib/CodeGen/LowerSubregs.cpp
rename to lib/CodeGen/ExpandPostRAPseudos.cpp