[turbofan] Strength reduction for Int32MulWithOverflow.

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/type-hints.h"
 #include "src/machine-type.h"
@@ skipping 321 matching lines @@
 Matcher<Node*> IsWord64Or(const Matcher<Node*>& lhs_matcher,
                           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*> IsInt32SubWithOverflow(const Matcher<Node*>& lhs_matcher,
+                                      const Matcher<Node*>& rhs_matcher);
 Matcher<Node*> IsInt32Add(const Matcher<Node*>& lhs_matcher,
                           const Matcher<Node*>& rhs_matcher);
 Matcher<Node*> IsInt32Sub(const Matcher<Node*>& lhs_matcher,
                           const Matcher<Node*>& rhs_matcher);
 Matcher<Node*> IsInt32Mul(const Matcher<Node*>& lhs_matcher,
                           const Matcher<Node*>& rhs_matcher);
 Matcher<Node*> IsInt32MulHigh(const Matcher<Node*>& lhs_matcher,
                               const Matcher<Node*>& rhs_matcher);
 Matcher<Node*> IsInt32LessThan(const Matcher<Node*>& lhs_matcher,
                                const Matcher<Node*>& rhs_matcher);
@@ skipping 81 matching lines @@
                                const Matcher<Node*>& mid_matcher,
                                const Matcher<Node*>& rhs_matcher);
 
 Matcher<Node*> IsStackSlot();
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_UNITTESTS_COMPILER_NODE_TEST_UTILS_H_