LayoutTests/fast/webgpu/regression/repro_274737.html

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

  onload = async () => {
    try {
      let adapter = await navigator.gpu.requestAdapter({});
      let device = await adapter.requestDevice({});
      device.pushErrorScope('validation');
      let buffer = device.createBuffer({size: 4096, usage: GPUBufferUsage.STORAGE});
      let outputBuffer = device.createBuffer({size: 4, usage: GPUBufferUsage.MAP_READ});
      let bindGroupLayout = device.createBindGroupLayout({
        entries: [{binding: 0, visibility: GPUShaderStage.COMPUTE, buffer: {type: 'storage'}}],
      });
      let bindGroup = device.createBindGroup({
        layout: bindGroupLayout,
        entries: [{binding: 0, resource: {buffer, offset: buffer.size - 256}}],
      });
      let module = device.createShaderModule({
        code: `
@group(0) @binding(0) var<storage, read_write> arr: array<u32>;

@compute @workgroup_size(1)
fn foo() {
  arr[0x40]=1234567890;
}
`,
      });
      let pipelineLayout = device.createPipelineLayout({bindGroupLayouts: [bindGroupLayout]});
      let pipeline = device.createComputePipeline({compute: {module}, layout: pipelineLayout});
      let commandEncoder = device.createCommandEncoder({});
      let computePassEncoder = commandEncoder.beginComputePass({});
      computePassEncoder.setPipeline(pipeline);
      computePassEncoder.setBindGroup(0, bindGroup, []);
      computePassEncoder.dispatchWorkgroups(1);
      computePassEncoder.end();
      let commandBuffer = commandEncoder.finish();
      device.queue.submit([commandBuffer]);
      await device.queue.onSubmittedWorkDone();
      await outputBuffer.mapAsync(GPUMapMode.READ);
      log(new Uint32Array(outputBuffer.getMappedRange()));
      let error = await device.popErrorScope();
      if (error) {
        log(error.message);
      } else {
        log('no validation error');
      }
      log('the end');
    } catch (e) {
      log('error');
      log(e);
    }
    globalThis.testRunner?.notifyDone();
  };
</script>