commit: 8eaef61e9bea8aff513d3479093d55201625e9a2
[log] [tgz]
author: Dawn Autoroller <dawn-autoroll@skia-public.iam.gserviceaccount.com>
Tue Dec 09 00:45:38 2025 -0800
committer: Dawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com>
Tue Dec 09 00:45:38 2025 -0800
tree: 6bee45670daf034085e13b6dde6a606287cb1be7
parent: e4d15e9afdfd0d3cc8fae9837d1f194f48b9aca1 [diff]

Roll DirectX Shader Compiler from ba86cc068a61 to c8a39c7679c8 (4 revisions)

https://chromium.googlesource.com/external/github.com/microsoft/DirectXShaderCompiler.git/+log/ba86cc068a61..c8a39c7679c8

2025-12-09 alexsepkowski@gmail.com Execution Tests: Update tolerances for half precision trig functions (#7992)
2025-12-09 ascoleman@microsoft.com Set latest release to SM6.9 (#7990)
2025-12-08 alexsepkowski@gmail.com Execution Test: Long Vectors - Fix defines for stores on specific lane (#7983)
2025-12-08 groth@nvidia.com Allow derivatives in coalescing nodes (#7942)

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/directx-shader-compiler-dawn
Please CC gman@google.com,webgpu-developers@google.com on the revert to ensure that a human
is aware of the problem.

To file a bug in DirectX Shader Compiler: https://github.com/microsoft/DirectXShaderCompiler/issues/new/choose
To file a bug in Dawn: https://bugs.chromium.org/p/dawn/issues/entry

To report a problem with the AutoRoller itself, please file a bug:
https://issues.skia.org/issues/new?component=1389291&template=1850622

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md

Bug: None
Tbr: gman@google.com
Change-Id: Iabe8094fcf741d069a7f6afee2708416e0ad899c
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/279296
Commit-Queue: Dawn Autoroller <dawn-autoroll@skia-public.iam.gserviceaccount.com>
Bot-Commit: Dawn Autoroller <dawn-autoroll@skia-public.iam.gserviceaccount.com>

DEPS[diff]
third_party/dxc[diff]

2 files changed

tree: 6bee45670daf034085e13b6dde6a606287cb1be7

README.md

Dawn, a WebGPU implementation

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 C/C++ headers that applications and other building blocks use.
- The webgpu.h version that Dawn implements.
- A C++ wrapper for the webgpu.h.
A “native” implementation of WebGPU using platforms' GPU APIs: D3D12, Metal, Vulkan and OpenGL. See per API support for more details.
A client-server implementation of WebGPU for applications that are in a sandbox without access to native drivers
Tint is a compiler for the WebGPU Shader Language (WGSL) that can be used in standalone to convert shaders from and to WGSL.

Helpful links:

Dawn bug tracker if you find issues with Dawn. Create a new issue here.
Tint bug tracker if you find issues with Tint. Create a new issue here.
Dawn's mailing list for other discussions related to Dawn.
Dawn's source code
Dawn's Matrix chatroom for live discussion around contributing or using Dawn.
WebGPU's Matrix chatroom
Tint mirror for standalone usage.

Documentation table of content

Developer documentation:

User documentation: (TODO, figure out what overlaps with the webgpu.h docs)

License

BSD 3-Clause License, please see LICENSE.

Disclaimer

This is not an officially supported Google product.