[Webkit-unassigned] [Bug 242297] New: Shader fails to link due to Metal internal error

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=242297

            Bug ID: 242297
           Summary: Shader fails to link due to Metal internal error
           Product: WebKit
           Version: Safari 15
          Hardware: iPhone / iPad
                OS: iOS 15
            Status: NEW
          Severity: Blocker
          Priority: P2
         Component: WebGL
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: pedrojrulez at gmail.com
                CC: dino at apple.com, kbr at google.com, kkinnunen at apple.com

Created attachment 460642

  --> https://bugs.webkit.org/attachment.cgi?id=460642&action=review

Shader GLSL source code

A shader that the Godot game engine generates, which compiles and links succesfully on every other platform supporting OpenGL ES 3 or WebGL 2, on Safari running on an iPhone fails to be linked, and the following is logged: 
[Error] Internal error compiling shader with Metal backend.
[Error] Please submit this shader, or website as a bug to https://bugs.webkit.org

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