ARM backend support for pld (preload data) instruction

src/arm/constants-arm.h

 // Copyright 2011 the V8 project authors. 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.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 690 matching lines @@
                                            && ((Bit(7) == 0)); }
 
   // Test for a nop instruction, which falls under type 1.
   inline bool IsNopType1() const { return Bits(24, 0) == 0x0120F000; }
 
   // Test for a stop instruction.
   inline bool IsStop() const {
     return (TypeValue() == 7) && (Bit(24) == 1) && (SvcValue() >= kStopCode);
   }
 
+  // Test for a pld instruction
+  inline bool IsPld() const { return (Bits(31, 28) == 15)

[danno, 2013/02/28 07:06:32]

nit: formatting, please don't put code on the line after { unless it fits on a
single line. Also ensure arguments line up on subsequent lines according to
style guide.

+                                     && (Bits(27, 26) == 1)
+                                     && (Bit(24) == 1)
+                                     && (Bits(22, 20) == 5)
+                                     && (Bits(15, 12) == 15); }

[danno, 2013/02/28 07:06:32]

} on next line by itself.

[rkrithiv, 2013/04/05 00:16:53]

Done.

+
   // 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; }
 
@@ skipping 57 matching lines @@
   static int Number(const char* name, bool* is_double);
 
  private:
   static const char* names_[kNumVFPRegisters];
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_ARM_CONSTANTS_ARM_H_