Support Float64Arrays

src/arm/assembler-arm.h

 // Copyright (c) 1994-2006 Sun Microsystems Inc.
 // All Rights Reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions
 // are met:
 //
 // - Redistributions of source code must retain the above copyright notice,
 // this list of conditions and the following disclaimer.
 //
@@ skipping 54 matching lines @@
 // code generated for some assembly instructions (because they boil down
 // to a few constants). If this is a problem, we could change the code
 // such that we use an enum in optimized mode, and the struct in debug
 // mode. This way we get the compile-time error checking in debug mode
 // and best performance in optimized code.
 
 // Core register
 struct Register {
   static const int kNumRegisters = 16;
   static const int kNumAllocatableRegisters = 8;
+  static const int kSizeInBytes = 4;
 
   static int ToAllocationIndex(Register reg) {
     ASSERT(reg.code() < kNumAllocatableRegisters);
     return reg.code();
   }
 
   static Register FromAllocationIndex(int index) {
     ASSERT(index >= 0 && index < kNumAllocatableRegisters);
     return from_code(index);
   }
@@ skipping 1278 matching lines @@
  public:
   explicit EnsureSpace(Assembler* assembler) {
     assembler->CheckBuffer();
   }
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_ARM_ASSEMBLER_ARM_H_