1 files changed, 6 insertions, 0 deletions
diff --git a/lib/Support/FoldingSet.cpp b/lib/Support/FoldingSet.cpp
index 0ccb3a6cc3..70daad9a61 100644
--- a/lib/Support/FoldingSet.cpp
+++ b/lib/Support/FoldingSet.cpp
@@ -56,6 +56,12 @@ void FoldingSetImpl::NodeID::AddFloat(float F) {
 void FoldingSetImpl::NodeID::AddDouble(double D) {
  AddInteger(DoubleToBits(D));
 }
+void FoldingSetImpl::NodeID::AddAPFloat(const APFloat& apf) {
+  APInt api = apf.convertToAPInt();
+  const uint64_t *p = api.getRawData();
+  for (int i=0; i<api.getNumWords(); i++)
+    AddInteger(*p++);
+}
 void FoldingSetImpl::NodeID::AddString(const std::string &String) {
   unsigned Size = String.size();
   Bits.push_back(Size);