MSTRINGIFY(

// Avoiding auto-vectorize by using vector-width locked dependent code

\n#undef MAD_4
\n#undef MAD_16
\n#undef MAD_64
\n
\n#define MAD_4(x, y)     x = (y*x) + y;      y = (x*y) + x;      x = (y*x) + y;      y = (x*y) + x;
\n#define MAD_16(x, y)    MAD_4(x, y);        MAD_4(x, y);        MAD_4(x, y);        MAD_4(x, y);
\n#define MAD_64(x, y)    MAD_16(x, y);       MAD_16(x, y);       MAD_16(x, y);       MAD_16(x, y);
\n

__kernel void compute_char_v1(__global char *ptr, char _A)
{
    char x = _A;
    char y = (char)get_local_id(0);

    for(int i=0; i<64; i++)
    {
        MAD_16(x, y);
    }

    ptr[get_global_id(0)] = y;
}


__kernel void compute_char_v2(__global char *ptr, char _A)
{
    char2 x = (char2)(_A, (_A+1));
    char2 y = (char2)get_local_id(0);

    for(int i=0; i<32; i++)
    {
        MAD_16(x, y);
    }

    ptr[get_global_id(0)] = (y.S0) + (y.S1);
}

__kernel void compute_char_v4(__global char *ptr, char _A)
{
    char4 x = (char4)(_A, (_A+1), (_A+2), (_A+3));
    char4 y = (char4)get_local_id(0);

    for(int i=0; i<16; i++)
    {
        MAD_16(x, y);
    }

    ptr[get_global_id(0)] = (y.S0) + (y.S1) + (y.S2) + (y.S3);
}


__kernel void compute_char_v8(__global char *ptr, char _A)
{
    char8 x = (char8)(_A, (_A+1), (_A+2), (_A+3), (_A+4), (_A+5), (_A+6), (_A+7));
    char8 y = (char8)get_local_id(0);

    for(int i=0; i<8; i++)
    {
        MAD_16(x, y);
    }

    ptr[get_global_id(0)] = (y.S0) + (y.S1) + (y.S2) + (y.S3) + (y.S4) + (y.S5) + (y.S6) + (y.S7);
}

__kernel void compute_char_v16(__global char *ptr, char _A)
{
    char16 x = (char16)(_A, (_A+1), (_A+2), (_A+3), (_A+4), (_A+5), (_A+6), (_A+7),
                    (_A+8), (_A+9), (_A+10), (_A+11), (_A+12), (_A+13), (_A+14), (_A+15));
    char16 y = (char16)get_local_id(0);

    for(int i=0; i<4; i++)
    {
        MAD_16(x, y);
    }

    char2 t = (y.S01) + (y.S23) + (y.S45) + (y.S67) + (y.S89) + (y.SAB) + (y.SCD) + (y.SEF);
    ptr[get_global_id(0)] = t.S0 + t.S1;
}


)