dawn-cmake/test/bug/tint/926.wgsl
Sarah e6cb51e715 validation: compute shader must include 'workgroup_size' in its attributes
Bug: tint:884
Change-Id: If96c6df3247fee142a779117fa26d006afd4f7ef
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/55680
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-06-29 18:39:44 +00:00

15 lines
453 B
WebGPU Shading Language

[[block]] struct DrawIndirectArgs {
vertexCount : atomic<u32>;
};
[[group(0), binding(5)]] var<storage, read_write> drawOut : DrawIndirectArgs;
var<private> cubeVerts : u32 = 0u;
[[stage(compute), workgroup_size(1)]]
fn computeMain([[builtin(global_invocation_id)]] global_id : vec3<u32>) {
// Increment cubeVerts based on some criteria...
// This fails SPIR-V validation
let firstVertex : u32 = atomicAdd(&drawOut.vertexCount, cubeVerts);
}