[turbofan] Next step towards shared operators.

test/cctest/compiler/codegen-tester.h

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_CCTEST_COMPILER_CODEGEN_TESTER_H_
 #define V8_CCTEST_COMPILER_CODEGEN_TESTER_H_
 
 #include "src/v8.h"
 
 #include "src/compiler/pipeline.h"
@@ skipping 224 matching lines @@
 // A helper class for testing compares. Wraps a machine opcode and provides
 // evaluation routines and the operators.
 class CompareWrapper {
  public:
   explicit CompareWrapper(IrOpcode::Value op) : opcode(op) {}
 
   Node* MakeNode(RawMachineAssemblerTester<int32_t>* m, Node* a, Node* b) {
     return m->NewNode(op(m->machine()), a, b);
   }
 
-  Operator* op(MachineOperatorBuilder* machine) {
+  const Operator* op(MachineOperatorBuilder* machine) {
     switch (opcode) {
       case IrOpcode::kWord32Equal:
         return machine->Word32Equal();
       case IrOpcode::kInt32LessThan:
         return machine->Int32LessThan();
       case IrOpcode::kInt32LessThanOrEqual:
         return machine->Int32LessThanOrEqual();
       case IrOpcode::kUint32LessThan:
         return machine->Uint32LessThan();
       case IrOpcode::kUint32LessThanOrEqual:
@@ skipping 73 matching lines @@
 
   void Run(RawMachineAssemblerTester<int32_t>* m);
   void RunLeft(RawMachineAssemblerTester<int32_t>* m);
   void RunRight(RawMachineAssemblerTester<int32_t>* m);
 };
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_CCTEST_COMPILER_CODEGEN_TESTER_H_