Reduce the number of virtual functions in hydrogen-instruction.h classes

src/hydrogen-instructions.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 299 matching lines @@
 intptr_t HValue::Hashcode() {
   intptr_t result = opcode();
   int count = OperandCount();
   for (int i = 0; i < count; ++i) {
     result = result * 19 + OperandAt(i)->id() + (result >> 7);
   }
   return result;
 }
 
 
+const char* HValue::Mnemonic() const {
+  switch (opcode()) {
+#define MAKE_CASE(type) case k##type: return #type;
+    HYDROGEN_CONCRETE_INSTRUCTION_LIST(MAKE_CASE)
+#undef MAKE_CASE
+    case kPhi: return "Phi";
+    default: return "";
+  }
+}
+
+
 void HValue::SetOperandAt(int index, HValue* value) {
   ASSERT(value == NULL || !value->representation().IsNone());
   RegisterUse(index, value);
   InternalSetOperandAt(index, value);
 }
 
 
 void HValue::ReplaceAndDelete(HValue* other) {
   if (other != NULL) ReplaceValue(other);
   Delete();
@@ skipping 1316 matching lines @@
 
 
 void HCheckPrototypeMaps::Verify() {
   HInstruction::Verify();
   ASSERT(HasNoUses());
 }
 
 #endif
 
 } }  // namespace v8::internal