ARM64: Slightly simplify LShiftI and LShiftS.

src/arm64/lithium-arm64.h

 // Copyright 2013 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_ARM64_LITHIUM_ARM64_H_
 #define V8_ARM64_LITHIUM_ARM64_H_
 
 #include "src/hydrogen.h"
 #include "src/lithium.h"
 #include "src/lithium-allocator.h"
@@ skipping 2715 matching lines @@
   bool can_deopt() const { return can_deopt_; }
 
   DECLARE_CONCRETE_INSTRUCTION(ShiftI, "shift-i")
 
  private:
   Token::Value op_;
   bool can_deopt_;
 };
 
 
-class LShiftS V8_FINAL : public LTemplateInstruction<1, 2, 1> {
+class LShiftS V8_FINAL : public LTemplateInstruction<1, 2, 0> {
  public:
-  LShiftS(Token::Value op, LOperand* left, LOperand* right, LOperand* temp,
-          bool can_deopt) : op_(op), can_deopt_(can_deopt) {
+  LShiftS(Token::Value op, LOperand* left, LOperand* right, bool can_deopt)
+      : op_(op), can_deopt_(can_deopt) {
     inputs_[0] = left;
     inputs_[1] = right;
-    temps_[0] = temp;
   }
 
   Token::Value op() const { return op_; }
   LOperand* left() { return inputs_[0]; }
   LOperand* right() { return inputs_[1]; }
-  LOperand* temp() { return temps_[0]; }
   bool can_deopt() const { return can_deopt_; }
 
   DECLARE_CONCRETE_INSTRUCTION(ShiftS, "shift-s")
 
  private:
   Token::Value op_;
   bool can_deopt_;
 };
 
 
@@ skipping 503 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(LChunkBuilder);
 };
 
 #undef DECLARE_HYDROGEN_ACCESSOR
 #undef DECLARE_CONCRETE_INSTRUCTION
 
 } }  // namespace v8::internal
 
 #endif  // V8_ARM64_LITHIUM_ARM64_H_