[Webkit-unassigned] [Bug 262076] New: [WGSL] "while elementIndex != 0xFFFFFFFFu && numLayers < maxLayers" does not compile

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=262076

            Bug ID: 262076
           Summary: [WGSL] "while elementIndex != 0xFFFFFFFFu && numLayers
                    < maxLayers" does not compile
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebGPU
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: mwyrzykowski at apple.com

Open A-Buffers: https://webgpu.github.io/webgpu-samples/samples/A-buffer#composite.wsgl

Note the source in composite.wsgl:
while elementIndex != 0xFFFFFFFFu && numLayers < maxLayers {

Shader fails compilation with the error:
55:2: Not a valid statement

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