diff --git a/llvm/include/llvm/MC/SubtargetFeature.h b/llvm/include/llvm/MC/SubtargetFeature.h
index c3167617b3fa..b5d689846295 100644
--- a/llvm/include/llvm/MC/SubtargetFeature.h
+++ b/llvm/include/llvm/MC/SubtargetFeature.h
@@ -33,7 +33,7 @@ class Triple;
 // A container class for subtarget features.
 // This is convenient because std::bitset does not have a constructor
 // with an initializer list of set bits.
-const unsigned MAX_SUBTARGET_FEATURES = 128;
+const unsigned MAX_SUBTARGET_FEATURES = 192;
 class FeatureBitset : public std::bitset<MAX_SUBTARGET_FEATURES> {
 public:
   // Cannot inherit constructors because it's not supported by VC++..