diff --git a/lib/Basic/Targets.cpp b/lib/Basic/Targets.cpp
index e2d40b29a29cf97329b8039c40403fc6d5933c8e..8d793163bc0bd3af7830f6ef8f87af8f7d1f33b1 100644
--- a/lib/Basic/Targets.cpp
+++ b/lib/Basic/Targets.cpp
@@ -449,8 +449,6 @@ public:
                                      TargetInfo::ConstraintInfo &Info) const {
     switch (*Name) {
     default: return false;
-    case ',': // Ignore ','s
-      break;
     case 'O': // Zero
       break;
     case 'b': // Base register