Support native float subtype in FloatBuiltins.HashNode

Author: fangerer

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/floats/FloatBuiltins.java

@@ -109,6 +109,7 @@
 import com.oracle.graal.python.runtime.formatting.InternalFormat.Spec;
 import com.oracle.truffle.api.CompilerDirectives;
 import com.oracle.truffle.api.CompilerDirectives.TruffleBoundary;
+import com.oracle.truffle.api.dsl.Bind;
 import com.oracle.truffle.api.dsl.Cached;
 import com.oracle.truffle.api.dsl.Cached.Shared;
 import com.oracle.truffle.api.dsl.Fallback;
@@ -654,9 +655,16 @@ protected static boolean accepts(Object obj) {
     @TypeSystemReference(PythonArithmeticTypes.class)
     abstract static class HashNode extends PythonUnaryBuiltinNode {
         @Specialization
-        static long hashDouble(double self) {
+        static long doDouble(double self) {
             return PyObjectHashNode.hash(self);
         }
+
+        @Specialization(guards = "dval != null")
+        static long doNativeFloat(@SuppressWarnings("unused") VirtualFrame frame, @SuppressWarnings("unused") PythonNativeObject object,
+                        @SuppressWarnings("unused") @Cached FromNativeSubclassNode getFloat,
+                        @Bind("getFloat.execute(frame, object)") Double dval) {
+            return PyObjectHashNode.hash(dval);
+        }
     }
 
     @Builtin(name = "fromhex", minNumOfPositionalArgs = 2, isClassmethod = true)