Add Uint32AddWithOverflow and Uint32SubWithOverflow machine operators.

src/compiler/instruction-selector.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_INSTRUCTION_SELECTOR_H_
 #define V8_COMPILER_INSTRUCTION_SELECTOR_H_
 
 #include <deque>
 
 #include "src/compiler/common-operator.h"
@@ skipping 142 matching lines @@
   // code if necessary.
   void VisitControl(BasicBlock* block);
 
   // Visit the node and generate code, if any.
   void VisitNode(Node* node);
 
 #define DECLARE_GENERATOR(x) void Visit##x(Node* node);
   MACHINE_OP_LIST(DECLARE_GENERATOR)
 #undef DECLARE_GENERATOR
 
-  void VisitInt32AddWithOverflow(Node* node, FlagsContinuation* cont);
-  void VisitInt32SubWithOverflow(Node* node, FlagsContinuation* cont);
-
   void VisitWord32Test(Node* node, FlagsContinuation* cont);
   void VisitWord64Test(Node* node, FlagsContinuation* cont);
   void VisitWord32Compare(Node* node, FlagsContinuation* cont);
   void VisitWord64Compare(Node* node, FlagsContinuation* cont);
   void VisitFloat64Compare(Node* node, FlagsContinuation* cont);
 
   void VisitParameter(Node* node);
   void VisitPhi(Node* node);
   void VisitProjection(Node* node);
   void VisitConstant(Node* node);
+  void VisitBranch(Node* input, BasicBlock* tbranch, BasicBlock* fbranch);
   void VisitCall(Node* call, BasicBlock* continuation,
                  BasicBlock* deoptimization);
   void VisitGoto(BasicBlock* target);
-  void VisitBranch(Node* input, BasicBlock* tbranch, BasicBlock* fbranch);
   void VisitReturn(Node* value);
   void VisitThrow(Node* value);
   void VisitDeoptimize(Node* deopt);
 
   // ===========================================================================
 
   Graph* graph() const { return sequence()->graph(); }
   Linkage* linkage() const { return sequence()->linkage(); }
   Schedule* schedule() const { return sequence()->schedule(); }
   InstructionSequence* sequence() const { return sequence_; }
@@ skipping 13 matching lines @@
   Instructions instructions_;
   BoolVector defined_;
   BoolVector used_;
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_INSTRUCTION_SELECTOR_H_