src/hotspot/share/opto/mulnode.cpp

@@ -1399,5 +1399,14 @@
   float f2 = t2->getf();
   float f3 = t3->getf();
   return TypeF::make(fma(f1, f2, f3));
 #endif
 }
+
+//=============================================================================
+//------------------------------hash-------------------------------------------
+// Hash function for MulAddS2INode.  Operation is commutative with commutative pairs.
+// The hash function must return the same value when edge swapping is performed.
+uint MulAddS2INode::hash() const {
+  return (uintptr_t)in(1) + (uintptr_t)in(2) + (uintptr_t)in(3) + (uintptr_t)in(4) + Opcode();
+}
+