[crankshaft] do not sign-extend int32 immediate in DoMathMinMax.

src/crankshaft/x64/lithium-codegen-x64.cc

 // 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.
 
 #if V8_TARGET_ARCH_X64
 
 #include "src/crankshaft/x64/lithium-codegen-x64.h"
 
 #include "src/base/bits.h"
 #include "src/code-factory.h"
@@ skipping 1761 matching lines @@
     Register left_reg = ToRegister(left);
     if (right->IsConstantOperand()) {
       Immediate right_imm = Immediate(
           ToRepresentation(LConstantOperand::cast(right),
                            instr->hydrogen()->right()->representation()));
       DCHECK(SmiValuesAre32Bits()
           ? !instr->hydrogen()->representation().IsSmi()
           : SmiValuesAre31Bits());
       __ cmpl(left_reg, right_imm);
       __ j(condition, &return_left, Label::kNear);
-      __ movp(left_reg, right_imm);
+      __ movl(left_reg, right_imm);
     } else if (right->IsRegister()) {
       Register right_reg = ToRegister(right);
       if (instr->hydrogen_value()->representation().IsSmi()) {
         __ cmpp(left_reg, right_reg);
       } else {
         __ cmpl(left_reg, right_reg);
       }
       __ j(condition, &return_left, Label::kNear);
       __ movp(left_reg, right_reg);
     } else {
@@ skipping 3832 matching lines @@
   __ bind(deferred->exit());
   __ bind(&done);
 }
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_X64