Bug 262076

Summary:	[WGSL] "while elementIndex != 0xFFFFFFFFu && numLayers < maxLayers" does not compile
Product:	WebKit	Reporter:	Mike Wyrzykowski <mwyrzykowski>
Component:	WebGPU	Assignee:	Nobody <webkit-unassigned>
Status:	NEW ---
Severity:	Normal	CC:	webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified

Description Mike Wyrzykowski 2023-09-25 15:20:23 PDT

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

Comment 1 Radar WebKit Bug Importer 2023-09-25 15:21:37 PDT

<rdar://problem/116018755>