[gn build] Port 7bc9d95b7e5a
diff --git a/llvm/utils/gn/secondary/llvm/lib/Target/AMDGPU/BUILD.gn b/llvm/utils/gn/secondary/llvm/lib/Target/AMDGPU/BUILD.gn
index 006e1ed..604cd171 100644
--- a/llvm/utils/gn/secondary/llvm/lib/Target/AMDGPU/BUILD.gn
+++ b/llvm/utils/gn/secondary/llvm/lib/Target/AMDGPU/BUILD.gn
@@ -189,6 +189,7 @@
     "AMDGPUSetWavePriority.cpp",
     "AMDGPUSplitModule.cpp",
     "AMDGPUSubtarget.cpp",
+    "AMDGPUSwLowerLDS.cpp",
     "AMDGPUTargetMachine.cpp",
     "AMDGPUTargetObjectFile.cpp",
     "AMDGPUTargetTransformInfo.cpp",