1 files changed, 15 insertions, 0 deletions
diff --git a/include/clang/Basic/Attr.td b/include/clang/Basic/Attr.td
index 633c5977a5..5332bde157 100644
--- a/include/clang/Basic/Attr.td
+++ b/include/clang/Basic/Attr.td
@@ -1844,12 +1844,27 @@ def Target : InheritableAttr {
       std::vector<std::string> Features;
       StringRef Architecture;
       bool DuplicateArchitecture = false;
+      bool operator ==(const ParsedTargetAttr &Other) const {
+        return DuplicateArchitecture == Other.DuplicateArchitecture &&
+               Architecture == Other.Architecture && Features == Other.Features;
+      }
     };
     ParsedTargetAttr parse() const {
       return parse(getFeaturesStr());
     }
+
+    template<class Compare>
+    ParsedTargetAttr parse(Compare cmp) const {
+      ParsedTargetAttr Attrs = parse();
+      std::sort(std::begin(Attrs.Features), std::end(Attrs.Features), cmp);
+      return Attrs;
+    }
+
+    bool isDefaultVersion() const { return getFeaturesStr() == "default"; }
+
     static ParsedTargetAttr parse(StringRef Features) {
       ParsedTargetAttr Ret;
+      if (Features == "default") return Ret;
       SmallVector<StringRef, 1> AttrFeatures;
       Features.split(AttrFeatures, ",");