question about __align__

[zjin-lcf]

typedef struct __align__(4)
{
  unsigned char r, g, b, a;
}
uchar4_aligned;

causes compile error (Please see zjin-lcf/HeCBench#46 for more details).

Is the following recommended for nvcc, hipcc, and clang++ ?

typedef struct
{
  unsigned char r, g, b, a;
}
uchar4_aligned __attribute__((aligned(4)));

[linehill]

The __align__ has been broken for a while but it used to work until some patch broke it. There's a ticket for it here.