diff --git a/llvm/lib/Target/ARM64/MCTargetDesc/ARM64MCTargetDesc.cpp b/llvm/lib/Target/ARM64/MCTargetDesc/ARM64MCTargetDesc.cpp
index 3ce3b6575ec8..412be50bbdd7 100644
--- a/llvm/lib/Target/ARM64/MCTargetDesc/ARM64MCTargetDesc.cpp
+++ b/llvm/lib/Target/ARM64/MCTargetDesc/ARM64MCTargetDesc.cpp
@@ -44,10 +44,8 @@ static MCSubtargetInfo *createARM64MCSubtargetInfo(StringRef TT, StringRef CPU,
                                                    StringRef FS) {
   MCSubtargetInfo *X = new MCSubtargetInfo();
 
-  // FIXME: Make this darwin-only.
   if (CPU.empty())
-    // We default to Cyclone for now, on Darwin.
-    CPU = "cyclone";
+    CPU = "generic";
 
   InitARM64MCSubtargetInfo(X, TT, CPU, FS);
   return X;