X87: fix the Sqrt issue.

src/x87/lithium-x87.h

 // Copyright 2012 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_X87_LITHIUM_X87_H_
 #define V8_X87_LITHIUM_X87_H_
 
 #include "src/hydrogen.h"
 #include "src/lithium.h"
 #include "src/lithium-allocator.h"
@@ skipping 955 matching lines @@
   }
 
   LOperand* value() { return inputs_[0]; }
   LOperand* temp1() { return temps_[0]; }
   LOperand* temp2() { return temps_[1]; }
 
   DECLARE_CONCRETE_INSTRUCTION(MathExp, "math-exp")
 };
 
 
-class LMathSqrt FINAL : public LTemplateInstruction<1, 1, 0> {
+class LMathSqrt FINAL : public LTemplateInstruction<1, 1, 2> {
  public:
-  explicit LMathSqrt(LOperand* value) {
+  explicit LMathSqrt(LOperand* value,
+                     LOperand* temp1,
+                     LOperand* temp2) {
     inputs_[0] = value;
+    temps_[0] = temp1;
+    temps_[1] = temp2;
   }
 
   LOperand* value() { return inputs_[0]; }
+  LOperand* temp1() { return temps_[0]; }
+  LOperand* temp2() { return temps_[1]; }
 
   DECLARE_CONCRETE_INSTRUCTION(MathSqrt, "math-sqrt")
 };
 
 
 class LMathPowHalf FINAL : public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LMathPowHalf(LOperand* value) { inputs_[0] = value; }
 
   LOperand* value() { return inputs_[0]; }
@@ skipping 1901 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(LChunkBuilder);
 };
 
 #undef DECLARE_HYDROGEN_ACCESSOR
 #undef DECLARE_CONCRETE_INSTRUCTION
 
 } }  // namespace v8::internal
 
 #endif  // V8_X87_LITHIUM_X87_H_