Add support to FoldingSet for hashing APInt objects.

llvm-svn: 46833

2 files changed, 6 insertions, 0 deletions

diff --git a/llvm/include/llvm/ADT/FoldingSet.h b/llvm/include/llvm/ADT/FoldingSet.h
index d0097613d68..ac7f428b3e7 100644
--- a/llvm/include/llvm/ADT/FoldingSet.h
+++ b/llvm/include/llvm/ADT/FoldingSet.h
@@ -22,6 +22,7 @@
 
 namespace llvm {
   class APFloat;
+  class APInt;
 
 /// This folding set used for two purposes:
 ///   1. Given information about a node we want to create, look up the unique
@@ -206,6 +207,7 @@ public:
   void AddFloat(float F);
   void AddDouble(double D);
   void AddAPFloat(const APFloat& apf);
+  void AddAPInt(const APInt& api);
   void AddString(const std::string &String);
   
   /// clear - Clear the accumulated profile, allowing this FoldingSetNodeID
diff --git a/llvm/lib/Support/FoldingSet.cpp b/llvm/lib/Support/FoldingSet.cpp
index 774fbabc28e..b2d34834d22 100644
--- a/llvm/lib/Support/FoldingSet.cpp
+++ b/llvm/lib/Support/FoldingSet.cpp
@@ -16,6 +16,7 @@
 
 #include "llvm/ADT/FoldingSet.h"
 #include "llvm/ADT/APFloat.h"
+#include "llvm/ADT/APInt.h"
 #include "llvm/Support/MathExtras.h"
 #include <cassert>
 using namespace llvm;
@@ -59,6 +60,9 @@ void FoldingSetNodeID::AddDouble(double D) {
 }
 void FoldingSetNodeID::AddAPFloat(const APFloat& apf) {
   APInt api = apf.convertToAPInt();
+  AddAPInt(api);
+}
+void FoldingSetNodeID::AddAPInt(const APInt& api) {
   const uint64_t *p = api.getRawData();
   for (unsigned i=0; i<api.getNumWords(); i++)
     AddInteger(*p++);