Allows unboxed doubles to be disabled.

runtime/vm/constants_arm.h

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_CONSTANTS_ARM_H_
 #define VM_CONSTANTS_ARM_H_
 
 #include "platform/globals.h"
 #include "platform/assert.h"
 
@@ skipping 94 matching lines @@
   D6  =  6,
   D7  =  7,
   D8  =  8,
   D9  =  9,
   D10 = 10,
   D11 = 11,
   D12 = 12,
   D13 = 13,
   D14 = 14,
   D15 = 15,
-#ifdef VFPv3_D16
+#if defined(VFPv3_D16)
   kNumberOfDRegisters = 16,
   // Leaving these defined, but marking them as kNoDRegister to avoid polluting
   // other parts of the code with #ifdef's. Instead, query kNumberOfDRegisters
   // to see which registers are valid.
   D16 = kNoDRegister,
   D17 = kNoDRegister,
   D18 = kNoDRegister,
   D19 = kNoDRegister,
   D20 = kNoDRegister,
   D21 = kNoDRegister,
@@ skipping 33 matching lines @@
 enum QRegister {
   kNoQRegister = -1,
   Q0  =  0,
   Q1  =  1,
   Q2  =  2,
   Q3  =  3,
   Q4  =  4,
   Q5  =  5,
   Q6  =  6,
   Q7  =  7,
-#ifdef VFPv3_D16
+#if defined(VFPv3_D16)
   kNumberOfQRegisters = 8,
   Q8  = kNoQRegister,
   Q9  = kNoQRegister,
   Q10 = kNoQRegister,
   Q11 = kNoQRegister,
   Q12 = kNoQRegister,
   Q13 = kNoQRegister,
   Q14 = kNoQRegister,
   Q15 = kNoQRegister,
 #else
@@ skipping 36 matching lines @@
 }
 
 
 // Register aliases for floating point scratch registers.
 const QRegister QTMP = Q7;  // Overlaps with DTMP, STMP.
 const DRegister DTMP = EvenDRegisterOf(QTMP);  // Overlaps with STMP.
 const SRegister STMP = EvenSRegisterOf(DTMP);
 
 // Architecture independent aliases.
 typedef QRegister FpuRegister;
+
 const FpuRegister FpuTMP = QTMP;
 const int kNumberOfFpuRegisters = kNumberOfQRegisters;
 const FpuRegister kNoFpuRegister = kNoQRegister;
 
 // Register aliases.
 const Register TMP = IP;  // Used as scratch register by assembler.
 const Register TMP2 = kNoRegister;  // There is no second assembler temporary.
 const Register CTX = R9;  // Caches current context in generated code.
 const Register PP = R10;  // Caches object pool pointer in generated code.
 const Register SPREG = SP;  // Stack pointer register.
@@ skipping 459 matching lines @@
   static Instr* At(uword pc) { return reinterpret_cast<Instr*>(pc); }
 
  private:
   DISALLOW_ALLOCATION();
   DISALLOW_IMPLICIT_CONSTRUCTORS(Instr);
 };
 
 }  // namespace dart
 
 #endif  // VM_CONSTANTS_ARM_H_