LayoutTests/fast/webgpu/regression/repro_274713.html

<script>
  globalThis.testRunner?.waitUntilDone();
  const log = console.debug;

  const format = 'bgra8unorm';

  onload = async () => {
    let adapter = await navigator.gpu.requestAdapter({});
    let device = await adapter.requestDevice({});
    device.pushErrorScope('validation');
    let texture = device.createTexture({format, size: [1], usage: GPUTextureUsage.RENDER_ATTACHMENT});
    let view = texture.createView();

    let commandEncoder = device.createCommandEncoder();
    let moduleV = device.createShaderModule({
      code: `
@group(0) @binding(0) var<uniform> b: u32;

@vertex
fn v() -> @builtin(position) vec4f {
    _ = b;
    return vec4();
}
`,
    });
    let moduleF = device.createShaderModule({
      code: `
@group(0) @binding(0) var<storage, read_write> b: u32;

@fragment
fn f() -> @location(0) vec4f {
    b = 1234567890;
    return vec4();
}
`,
    });
    let renderPipeline = device.createRenderPipeline({
      layout: 'auto',
      vertex: {module: moduleV, buffers: []},
      fragment: {module: moduleF, targets: [{format}]},
      primitive: {topology: 'point-list'},
    });
    let uniformBuffer = device.createBuffer({size: 4, usage: GPUBufferUsage.UNIFORM | GPUBufferUsage.COPY_SRC});
    let bindGroup0 = device.createBindGroup({
      layout: renderPipeline.getBindGroupLayout(0),
      entries: [{binding: 0, resource: {buffer: uniformBuffer}}],
    });
    let renderPassEncoder0 = commandEncoder.beginRenderPass({colorAttachments: [{view, loadOp: 'clear', storeOp: 'store'}]});
    renderPassEncoder0.setPipeline(renderPipeline);
    renderPassEncoder0.setBindGroup(0, bindGroup0);
    renderPassEncoder0.draw(1);
    renderPassEncoder0.end();
    let outputBuffer = device.createBuffer({size: 4, usage: GPUBufferUsage.COPY_DST | GPUBufferUsage.MAP_READ});
    commandEncoder.copyBufferToBuffer(uniformBuffer, 0, outputBuffer, 0, 4);
    let commandBuffer = commandEncoder.finish();
    device.queue.submit([commandBuffer]);
    await device.queue.onSubmittedWorkDone();
    await outputBuffer.mapAsync(GPUMapMode.READ);
    let outputU32 = new Uint32Array(outputBuffer.getMappedRange());
    log(outputU32);
    let error = await device.popErrorScope();
    if (error) {
      log(error.message);
    } else {
      log(`no validation error`);
    }
    globalThis.testRunner?.notifyDone();
  };
</script>