[webkit-changes] [WebKit/WebKit] e6c30a: [ANGLE] Speculative fix for div-by-zero in Dispatc...

[Dan Glastonbury]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: e6c30af4dc921fc6b5dda474ccc432266ddff306
      https://github.com/WebKit/WebKit/commit/e6c30af4dc921fc6b5dda474ccc432266ddff306
  Author: Dan Glastonbury <djg at apple.com>
  Date:   2023-04-04 (Tue, 04 Apr 2023)

  Changed paths:
    M Source/ThirdParty/ANGLE/changes.diff
    M Source/ThirdParty/ANGLE/src/libANGLE/renderer/metal/mtl_render_utils.mm

  Log Message:
  -----------
  [ANGLE] Speculative fix for div-by-zero in DispatchCompute
https://bugs.webkit.org/show_bug.cgi?id=255002
rdar://problem/106789544

Reviewed by Dean Jackson.

On some CPU configurations, divide-by-zero raises an exception. To avoid
dividing by zero on devices that don't have non-uniform dispatch, clamp
numThreads between 1 and threadExecutionWidth.

* Source/ThirdParty/ANGLE/src/libANGLE/renderer/metal/mtl_render_utils.mm:

Canonical link: https://commits.webkit.org/262609@main