[arm] Recognize comparisons of shifts with zero.

src/compiler/arm/code-generator-arm.cc

 // 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.
 
 #include "src/compiler/code-generator.h"
 
 #include "src/arm/macro-assembler-arm.h"
 #include "src/compiler/code-generator-impl.h"
 #include "src/compiler/gap-resolver.h"
 #include "src/compiler/node-matchers.h"
@@ skipping 180 matching lines @@
       DCHECK_EQ(LeaveCC, i.OutputSBit());
       break;
     }
     case kArmUdiv: {
       CpuFeatureScope scope(masm(), SUDIV);
       __ udiv(i.OutputRegister(), i.InputRegister(0), i.InputRegister(1));
       DCHECK_EQ(LeaveCC, i.OutputSBit());
       break;
     }
     case kArmMov:
-      __ Move(i.OutputRegister(), i.InputOperand2(0));
-      DCHECK_EQ(LeaveCC, i.OutputSBit());
+      __ Move(i.OutputRegister(), i.InputOperand2(0), i.OutputSBit());
       break;
     case kArmMvn:
       __ mvn(i.OutputRegister(), i.InputOperand2(0), i.OutputSBit());
       break;
     case kArmOrr:
       __ orr(i.OutputRegister(), i.InputRegister(0), i.InputOperand2(1),
              i.OutputSBit());
       break;
     case kArmEor:
       __ eor(i.OutputRegister(), i.InputRegister(0), i.InputOperand2(1),
@@ skipping 614 matching lines @@
 
 void CodeGenerator::AddNopForSmiCodeInlining() {
   // On 32-bit ARM we do not insert nops for inlined Smi code.
   UNREACHABLE();
 }
 
 #undef __
 }
 }
 }  // namespace v8::internal::compiler