Automerge: [gn build] Port 0469ff0

Author: llvmgnsyncbot

llvm/utils/gn/secondary/llvm/utils/TableGen/Basic/BUILD.gn

@@ -10,6 +10,7 @@ source_set("Basic") {
     "DirectiveEmitter.cpp",
     "IntrinsicEmitter.cpp",
     "RISCVTargetDefEmitter.cpp",
+    "RuntimeLibcalls.cpp",
     "RuntimeLibcallsEmitter.cpp",
     "SDNodeProperties.cpp",
     "TableGen.cpp",