Bug 265895 – [WGSL] Error compiling WGSL shader which uses override as an array size

• Status: NEW
• Component: WebGPU

[Mike Wyrzykowski]

The following compute shader:

              override a: u32;
              override b: u32;
              var<workgroup> vec4_data: array<vec4<f32>, a>;
              
              @compute @workgroup_size(1) fn main() {
                _ = vec4_data[0];

              }

generates the error:
  1 error generated while compiling the shader:
  4:45: array count must evaluate to a constant integer expression or override variable

it would seem that 'a' should be able to be used in the array declaration.

[Radar WebKit Bug Importer]

<rdar://problem/119207413>

[Mike Wyrzykowski]

This was observed running https://gpuweb.github.io/cts/standalone/?q=webgpu:api,validation,compute_pipeline:overrides,workgroup_size,limits,workgroup_storage_size:isAsync=false