Thumb2 Backend: 16-bit instruction encoding helper methods

src/assembler.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 983 matching lines @@
 };
 
 
 // -----------------------------------------------------------------------------
 // Utility functions
 
 inline bool is_intn(int x, int n)  {
   return -(1 << (n-1)) <= x && x < (1 << (n-1));
 }
 
+inline bool is_int5(int x)  { return is_intn(x, 5); }
 inline bool is_int8(int x)  { return is_intn(x, 8); }
+inline bool is_int9(int x)  { return is_intn(x, 9); }
+inline bool is_int11(int x)  { return is_intn(x, 11); }
+inline bool is_int12(int x)  { return is_intn(x, 12); }
 inline bool is_int16(int x)  { return is_intn(x, 16); }
 inline bool is_int18(int x)  { return is_intn(x, 18); }
+inline bool is_int20(int x)  { return is_intn(x, 20); }
+inline bool is_int21(int x)  { return is_intn(x, 21); }
 inline bool is_int24(int x)  { return is_intn(x, 24); }
 
 inline bool is_uintn(int x, int n) {
   return (x & -(1 << n)) == 0;
 }
 
 inline bool is_uint2(int x)  { return is_uintn(x, 2); }
 inline bool is_uint3(int x)  { return is_uintn(x, 3); }
 inline bool is_uint4(int x)  { return is_uintn(x, 4); }
 inline bool is_uint5(int x)  { return is_uintn(x, 5); }
@@ skipping 39 matching lines @@
  public:
   NullCallWrapper() { }
   virtual ~NullCallWrapper() { }
   virtual void BeforeCall(int call_size) const { }
   virtual void AfterCall() const { }
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_ASSEMBLER_H_