[turbofan] ARM: Reduce out-of-line NaN code size

src/arm/constants-arm.h

 // Copyright 2011 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_ARM_CONSTANTS_ARM_H_
 #define V8_ARM_CONSTANTS_ARM_H_
 
 #include <stdint.h>
 
 #include "src/base/logging.h"
@@ skipping 636 matching lines @@
   // Special accessors that test for existence of a value.
   inline bool HasS()    const { return SValue() == 1; }
   inline bool HasB()    const { return BValue() == 1; }
   inline bool HasW()    const { return WValue() == 1; }
   inline bool HasL()    const { return LValue() == 1; }
   inline bool HasU()    const { return UValue() == 1; }
   inline bool HasSign() const { return SignValue() == 1; }
   inline bool HasH()    const { return HValue() == 1; }
   inline bool HasLink() const { return LinkValue() == 1; }
 
-  // Decoding the double immediate in the vmov instruction.
+  // Decode the double immediate from a vmov instruction.
   double DoubleImmedVmov() const;
 
   // Instructions are read of out a code stream. The only way to get a
   // reference to an instruction is to convert a pointer. There is no way
   // to allocate or create instances of class Instruction.
   // Use the At(pc) function to create references to Instruction.
   static Instruction* At(byte* pc) {
     return reinterpret_cast<Instruction*>(pc);
   }
 
@@ skipping 47 matching lines @@
 
  private:
   static const char* names_[kNumVFPRegisters];
 };
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_ARM_CONSTANTS_ARM_H_