diff --git a/llvm/utils/gn/secondary/llvm/lib/CodeGen/BUILD.gn b/llvm/utils/gn/secondary/llvm/lib/CodeGen/BUILD.gn
index a166690be4490f..e312631385def3 100644
--- a/llvm/utils/gn/secondary/llvm/lib/CodeGen/BUILD.gn
+++ b/llvm/utils/gn/secondary/llvm/lib/CodeGen/BUILD.gn
@@ -104,6 +104,7 @@ static_library("CodeGen") {
     "MIRVRegNamerUtils.cpp",
     "MIRYamlMapping.cpp",
     "MLRegallocEvictAdvisor.cpp",
+    "MLRegallocPriorityAdvisor.cpp",
     "MachineBasicBlock.cpp",
     "MachineBlockFrequencyInfo.cpp",
     "MachineBlockPlacement.cpp",