Bug 302750 – WGSL compilation: cannot use override value in constant expression

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

WGSL shader don't compiles on macos/safari when declared 2 same arrays.
But it compiles on linux/chrome, android/chrome.

Error message also strange, override keyword not present in wgsl source:

=====
const PTK_HASHDATA   = array<array<u32, 16>, 1>(array<u32, 16>(0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0));
const EAPOL_HASHDATA = array<array<u32, 16>, 1>(array<u32, 16>(0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0));

@group(0) @binding(0) var<storage, read> input: array<u32>;
@group(0) @binding(1) var<storage, read_write> output: array<u32>;

@compute @workgroup_size(64)
fn main(@builtin(global_invocation_id) gid: vec3<u32>) {
  output[gid.x] = gid.x;
}
=====

Quick check:
https://georg95.github.io/wgsl-safari-bug.html

So, actually issue is you can't declare 2-d const arrays.
Can change to const to var<private>, but probably with performance penalty

[Radar WebKit Bug Importer]

<rdar://problem/165093959>

[Tadeu Zagallo]

Pull request: https://github.com/WebKit/WebKit/pull/56885

[EWS]

Committed 306020@main (4f07563c85a8): <https://commits.webkit.org/306020@main>

Reviewed commits have been landed. Closing PR #56885 and removing active labels.