[turbofan] Introduces the BitcastWordToTaggedSigned and BitcastTaggedToWord opcodes.

test/unittests/compiler/node-test-utils.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_UNITTESTS_COMPILER_NODE_TEST_UTILS_H_
 #define V8_UNITTESTS_COMPILER_NODE_TEST_UTILS_H_
 
 #include "src/compiler/machine-operator.h"
 #include "src/compiler/simplified-operator.h"
 #include "src/machine-type.h"
@@ skipping 368 matching lines @@
 Matcher<Node*> IsUint32LessThan(const Matcher<Node*>& lhs_matcher,
                                 const Matcher<Node*>& rhs_matcher);
 Matcher<Node*> IsUint32LessThanOrEqual(const Matcher<Node*>& lhs_matcher,
                                        const Matcher<Node*>& rhs_matcher);
 Matcher<Node*> IsInt64Add(const Matcher<Node*>& lhs_matcher,
                           const Matcher<Node*>& rhs_matcher);
 Matcher<Node*> IsInt64Sub(const Matcher<Node*>& lhs_matcher,
                           const Matcher<Node*>& rhs_matcher);
 Matcher<Node*> IsJSAdd(const Matcher<Node*>& lhs_matcher,
                        const Matcher<Node*>& rhs_matcher);
+Matcher<Node*> IsBitcastTaggedToWord(const Matcher<Node*>& input_matcher);
+Matcher<Node*> IsBitcastWordToTagged(const Matcher<Node*>& input_matcher);
+Matcher<Node*> IsBitcastWordToTaggedSigned(const Matcher<Node*>& input_matcher);
 Matcher<Node*> IsTruncateFloat64ToWord32(const Matcher<Node*>& input_matcher);
 Matcher<Node*> IsChangeFloat64ToInt32(const Matcher<Node*>& input_matcher);
 Matcher<Node*> IsChangeFloat64ToUint32(const Matcher<Node*>& input_matcher);
 Matcher<Node*> IsChangeInt32ToFloat64(const Matcher<Node*>& input_matcher);
 Matcher<Node*> IsChangeInt32ToInt64(const Matcher<Node*>& input_matcher);
 Matcher<Node*> IsChangeUint32ToFloat64(const Matcher<Node*>& input_matcher);
 Matcher<Node*> IsChangeUint32ToUint64(const Matcher<Node*>& input_matcher);
 Matcher<Node*> IsTruncateFloat64ToFloat32(const Matcher<Node*>& input_matcher);
 Matcher<Node*> IsTruncateInt64ToInt32(const Matcher<Node*>& input_matcher);
 Matcher<Node*> IsFloat32Abs(const Matcher<Node*>& input_matcher);
@@ skipping 65 matching lines @@
                                const Matcher<Node*>& rhs_matcher);
 Matcher<Node*> IsWord32ReverseBytes(const Matcher<Node*>& value_matcher);
 
 Matcher<Node*> IsStackSlot();
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_UNITTESTS_COMPILER_NODE_TEST_UTILS_H_