[turbofan] Add support for change/truncate to MachineOperatorReducer.

test/compiler-unittests/graph-unittest.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_COMPILER_UNITTESTS_GRAPH_UNITTEST_H_
 #define V8_COMPILER_UNITTESTS_GRAPH_UNITTEST_H_
 
 #include "src/compiler/graph.h"
 #include "src/compiler/machine-operator.h"
 #include "test/compiler-unittests/common-operator-unittest.h"
@@ skipping 14 matching lines @@
 
 class GraphTest : public CommonOperatorTest {
  public:
   explicit GraphTest(int parameters = 1);
   virtual ~GraphTest();
 
  protected:
   Node* Parameter(int32_t index);
   Node* Float64Constant(double value);
   Node* Int32Constant(int32_t value);
+  Node* Int64Constant(int64_t value);
   Node* NumberConstant(double value);
   Node* HeapConstant(const PrintableUnique<HeapObject>& value);
   Node* FalseConstant();
   Node* TrueConstant();
 
   Matcher<Node*> IsFalseConstant();
   Matcher<Node*> IsTrueConstant();
 
   Graph* graph() { return &graph_; }
 
@@ skipping 11 matching lines @@
 Matcher<Node*> IsControlEffect(const Matcher<Node*>& control_matcher);
 Matcher<Node*> IsValueEffect(const Matcher<Node*>& value_matcher);
 Matcher<Node*> IsFinish(const Matcher<Node*>& value_matcher,
                         const Matcher<Node*>& effect_matcher);
 Matcher<Node*> IsExternalConstant(
     const Matcher<ExternalReference>& value_matcher);
 Matcher<Node*> IsHeapConstant(
     const Matcher<PrintableUnique<HeapObject> >& value_matcher);
 Matcher<Node*> IsFloat64Constant(const Matcher<double>& value_matcher);
 Matcher<Node*> IsInt32Constant(const Matcher<int32_t>& value_matcher);
+Matcher<Node*> IsInt64Constant(const Matcher<int64_t>& value_matcher);
 Matcher<Node*> IsNumberConstant(const Matcher<double>& value_matcher);
 Matcher<Node*> IsPhi(const Matcher<Node*>& value0_matcher,
                      const Matcher<Node*>& value1_matcher,
                      const Matcher<Node*>& merge_matcher);
 Matcher<Node*> IsProjection(const Matcher<int32_t>& index_matcher,
                             const Matcher<Node*>& base_matcher);
 Matcher<Node*> IsCall(const Matcher<CallDescriptor*>& descriptor_matcher,
                       const Matcher<Node*>& value0_matcher,
                       const Matcher<Node*>& value1_matcher,
                       const Matcher<Node*>& value2_matcher,
@@ skipping 40 matching lines @@
 Matcher<Node*> IsChangeUint32ToFloat64(const Matcher<Node*>& input_matcher);
 Matcher<Node*> IsChangeUint32ToUint64(const Matcher<Node*>& input_matcher);
 Matcher<Node*> IsTruncateFloat64ToInt32(const Matcher<Node*>& input_matcher);
 Matcher<Node*> IsTruncateInt64ToInt32(const Matcher<Node*>& input_matcher);
 
 }  //  namespace compiler
 }  //  namespace internal
 }  //  namespace v8
 
 #endif  // V8_COMPILER_UNITTESTS_GRAPH_UNITTEST_H_