% Test allowed syntax for the "numthreads" attribute.

[require]
shader model >= 5.0

[compute shader]

    [numthreads(1, 1, 1)]
void main() {}

[compute shader fail]

    [numthreads]
void main() {}

[compute shader fail]

    [numthreads(1, 1)]
void main() {}

[compute shader fail]

    [numthreads(1, 1, 1, 1)]
void main() {}

[compute shader fail]

    [numthreads(0, 1, 1)]
void main() {}

[compute shader fail]

    [numthreads(1, 0, 1)]
void main() {}

[compute shader fail]

    [numthreads(1, 1, 0)]
void main() {}

[compute shader fail todo]

    [numthreads(-1, 1, 1)]
void main() {}

[compute shader fail todo]

    [numthreads(1, -1, 1)]
void main() {}

[compute shader fail todo]

    [numthreads(1, 1, -1)]
void main() {}

[compute shader fail todo]

    [numthreads(1, -1, -1)]
void main() {}

[compute shader todo]

    [numthreads(uint(1), 1, 1)]
void main() {}

[compute shader todo]

    [numthreads(int(1), 1, 1)]
void main() {}

[compute shader fail]

    [numthreads(float(1), 1, 1)]
void main() {}

[compute shader fail]

    [numthreads(uint1(1), 1, 1)]
void main() {}

[compute shader todo]

    [numthreads(int(1), 1, 1)]
void main() {}

[compute shader todo]

    [numthreads(1 + 1, 1, 1)]
void main() {}

[compute shader fail]

    [numthreads("1", 1, 1)]
void main() {}

[compute shader todo]
static int x = 1;

    [numthreads(x, 1, 1)]
void main() {}

[compute shader fail]

void main() {}

[compute shader fail]

    [NumThreads(1, 1, 1)]
void main() {}

[compute shader]

    [numthreads(1, 1, 1)]
void main();

void main() {}

[compute shader fail]

void main() {}

    [numthreads(1, 1, 1)]
void main();

[compute shader fail]

void main();

    [numthreads(1, 1, 1)]
void main() {}

[compute shader fail todo]

/* Expressions with side effects are forbidden in attributes (but not if the
 * attribute is ignored). */

static int x = 1;

    [numthreads(x++, 1, 1)]
void main() {}

[compute shader fail todo]

static int x = 1;

    [numthreads(++x, 1, 1)]
void main() {}

[compute shader fail todo]

static int x = 1;

    [numthreads((x = 2), 1, 1)]
void main() {}

[compute shader]

static int x = 1;

    [numthreads(++x, 1, 1)]
void func() {}

    [bogus(++x)]
    [numthreads(1, 1, 1)]
void main() { func(); }

[uav 0]
format r32 float
size (2, 2)

1.0 1.0
1.0 1.0

[compute shader]
/* Attributes are taken from the first function, and dropped from the second. */
RWTexture2D<float> u;

    [numthreads(2, 1, 1)]
void main(uint2 id);

    [numthreads(1, 2, 1)]
void main(uint2 id : sv_dispatchthreadid)
{
    u[id] = 2.0;
}

[test]
dispatch 1 1 1
probe uav 0 (0, 0) r (2.0)
probe uav 0 (0, 1) r (1.0)
probe uav 0 (1, 0) r (2.0)
probe uav 0 (1, 1) r (1.0)