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/* PROLOG END TAG zYx                                              */
#ifdef __SPU__
#ifndef _ISNANF4_H_
#define _ISNANF4_H_	1

#include <spu_intrinsics.h>

/*
 * FUNCTION
 *	vector unsigned int _isnanf4(vector float x)
 *
 * DESCRIPTION
 *      The _isnanf4 function returns a vector in which each element indicates 
 *      if the corresponding element of x is NaN.
 *
 *      On the SPU, this function always returns 0, since NaNs are not 
 *      supported.
 *
 * RETURNS
 *      UINT_MAX (0xFFFFFFFF)  if the element of x is a NaN
 *      0        (0x00000000)  otherwise (always on the SPU)
 *
 */
static __inline vector unsigned int _isnanf4(vector float __attribute__((__unused__))x)
{
  return spu_splats((unsigned int)0);	
}

#endif // _ISNANF4_H_
#endif /* __SPU__ */