Bug 300732 – [WebGPU Swift] 1 crash and 3 text failures with Swift backend

• Status: RESOLVED
• Resolution: FIXED
• Component: WebGPU

[Mike Wyrzykowski]

With the latest Swift compiler, running:

  ./Tools/Scripts/run-webkit-tests --release --no-build http/tests/webgpu/webgpu

results in:

[1/4] http/tests/webgpu/webgpu/api/operation/adapter/requestDevice.html failed unexpectedly (com.apple.WebKit.GPU.Development crashed [pid=81974])
[2/4] http/tests/webgpu/webgpu/api/validation/encoding/cmds/render/dynamic_state.html failed unexpectedly (text diff)
[3/4] http/tests/webgpu/webgpu/api/validation/encoding/queries/resolveQuerySet.html failed unexpectedly (text diff)
[4/4] http/tests/webgpu/webgpu/api/validation/queue/destroyed/query_set.html failed unexpectedly (text diff)

[Geoffrey Garen]

Thread 10  name: WebGPU work queue Crashed:: :
0   com.apple.WebGPU              	       0x102a7c3c0 WebGPU.CommandEncoder.beginRenderPass(descriptor:)
1   com.apple.WebGPU              	       0x102a78d3c CommandEncoder_beginRenderPass_thunk(commandEncoder:descriptor:)
2   com.apple.WebGPU              	       0x102a00db4 WebGPU::CommandEncoder::beginRenderPass(WGPURenderPassDescriptor const&)
3   com.apple.WebGPU              	       0x102a0aa28 wgpuCommandEncoderBeginRenderPass(WGPUCommandEncoderImpl*, WGPURenderPassDescriptor const*)
4   com.apple.WebCore             	       0x115ef1bfc WebCore::WebGPU::CommandEncoderImpl::beginRenderPass(WebCore::WebGPU::RenderPassDescriptor const&)
...

[Geoffrey Garen]

Exception Type:    EXC_BREAKPOINT (SIGTRAP)

[Geoffrey Garen]

Seems like this must a Swift precondition failure of some sort.

[Mike Wyrzykowski]

missing nil check is the reason for the crash

[Radar WebKit Bug Importer]

<rdar://problem/162639798>

[Geoffrey Garen]

Pull request: https://github.com/WebKit/WebKit/pull/52363

[EWS]

Committed 301553@main (71e9079abf4a): <https://commits.webkit.org/301553@main>

Reviewed commits have been landed. Closing PR #52363 and removing active labels.