diff --git a/clang/lib/Basic/Targets.cpp b/clang/lib/Basic/Targets.cpp
index e2d40b29a29c..8d793163bc0b 100644
--- a/clang/lib/Basic/Targets.cpp
+++ b/clang/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