gn build: Merge r358422

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@358486 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/gn/secondary/llvm/lib/Transforms/Utils/BUILD.gn b/utils/gn/secondary/llvm/lib/Transforms/Utils/BUILD.gn
index eee9b80..6b28bc8 100644
--- a/utils/gn/secondary/llvm/lib/Transforms/Utils/BUILD.gn
+++ b/utils/gn/secondary/llvm/lib/Transforms/Utils/BUILD.gn
@@ -57,6 +57,7 @@
     "SimplifyCFG.cpp",
     "SimplifyIndVar.cpp",
     "SimplifyLibCalls.cpp",
+    "SizeOpts.cpp",
     "SplitModule.cpp",
     "StripGCRelocates.cpp",
     "StripNonLineTableDebugInfo.cpp",