[turbofan] Support lowering of ChangeFloat64ToTagged/ChangeTaggedToInt32.

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"
 #include "testing/gmock/include/gmock/gmock.h"
 
 namespace v8 {
 namespace internal {
 
 // Forward declarations.
 class HeapObject;
 template <class T>
 class PrintableUnique;
 
 namespace compiler {
 
+using ::testing::Matcher;
+
+
 class GraphTest : public CommonOperatorTest {
  public:
   explicit GraphTest(int parameters = 1);
   virtual ~GraphTest();
 
  protected:
   Graph* graph() { return &graph_; }
 
+  Matcher<Node*> IsAllocateHeapNumber(const Matcher<Node*>& effect_matcher,
+                                      const Matcher<Node*>& control_matcher);
+
  private:
   Graph graph_;
 };
 
 
-using ::testing::Matcher;
-
 Matcher<Node*> IsBranch(const Matcher<Node*>& value_matcher,
                         const Matcher<Node*>& control_matcher);
 Matcher<Node*> IsMerge(const Matcher<Node*>& control0_matcher,
                        const Matcher<Node*>& control1_matcher);
 Matcher<Node*> IsIfTrue(const Matcher<Node*>& control_matcher);
 Matcher<Node*> IsIfFalse(const Matcher<Node*>& control_matcher);
 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*> IsInt32Constant(const Matcher<int32_t>& value_matcher);
 Matcher<Node*> IsNumberConstant(const Matcher<double>& value_matcher);
 Matcher<Node*> IsPhi(const Matcher<Node*>& value0_matcher,
                      const Matcher<Node*>& value1_matcher,
@@ skipping 31 matching lines @@
                            const Matcher<Node*>& rhs_matcher);
 Matcher<Node*> IsWord64Shl(const Matcher<Node*>& lhs_matcher,
                            const Matcher<Node*>& rhs_matcher);
 Matcher<Node*> IsWord64Sar(const Matcher<Node*>& lhs_matcher,
                            const Matcher<Node*>& rhs_matcher);
 Matcher<Node*> IsWord64Equal(const Matcher<Node*>& lhs_matcher,
                              const Matcher<Node*>& rhs_matcher);
 Matcher<Node*> IsInt32AddWithOverflow(const Matcher<Node*>& lhs_matcher,
                                       const Matcher<Node*>& rhs_matcher);
 Matcher<Node*> IsConvertInt64ToInt32(const Matcher<Node*>& input_matcher);
+Matcher<Node*> IsChangeFloat64ToInt32(const Matcher<Node*>& input_matcher);
 Matcher<Node*> IsChangeInt32ToFloat64(const Matcher<Node*>& input_matcher);
 
 }  //  namespace compiler
 }  //  namespace internal
 }  //  namespace v8
 
 #endif  // V8_COMPILER_UNITTESTS_GRAPH_UNITTEST_H_