[spirv] Add workaround for Xclipse bug A certain sequence of bitwise operations followed by two select builtins produces incorrect results on Xclipse GPUs. Guidance from Samsung is that we can avoid the broken optimization by emitting `x < 1u` instead of `x == 0u`. Add a new transform that does this, and add a Dawn E2E test to test it. Guard the workaround on driver version < 25.x, since the issue is fixed in newer drivers. Fixed: 542268656 Change-Id: Ibfe7557a81e9483bcf7be64477e69318b9bc6658 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/330255 Reviewed-by: dan sinclair <dsinclair@chromium.org> Reviewed-by: Brandon Jones <bajones@chromium.org> Commit-Queue: James Price <jrprice@google.com>
Dawn is an open-source and cross-platform implementation of the WebGPU standard. More precisely it implements webgpu.h that is a one-to-one mapping with the WebGPU IDL. Dawn is meant to be integrated as part of a larger system and is the underlying implementation of WebGPU in Chromium.
Dawn provides several WebGPU building blocks:
webgpu.h version that Dawn implements.webgpu.h.Helpful links:
Developer documentation:
User documentation: (TODO, figure out what overlaps with the webgpu.h docs)
BSD 3-Clause License, please see LICENSE.
This is not an officially supported Google product.