commit: 6fc1a5e0b6e75326ad5db49cec38d3fd3975e7b9
[log]
author: Dawn Autoroller <dawn-autoroll@skia-public.iam.gserviceaccount.com>
Wed Jan 21 01:32:50 2026 -0800
committer: Dawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com>
Wed Jan 21 01:32:50 2026 -0800
tree: 8b642f0f9c9455e8e70ed72cef4316afaf7725c4
parent: f9b1deefd382e1d553d907394a08635ef6216ede [diff]

Roll DirectX Shader Compiler from d6b78b745ec2 to 1866977946e6 (4 revisions)

https://chromium.googlesource.com/external/github.com/microsoft/DirectXShaderCompiler.git/+log/d6b78b745ec2..1866977946e6

2026-01-21 spall@planetbauer.com fix release notes messed up in #8013 (#8081)
2026-01-20 jbatista@microsoft.com [Validation] Add 2025_07_14 release to validation back-compat test rotation (#8067)
2026-01-20 spall@planetbauer.com Implement support for groupshared arg attribute (#8013)
2026-01-20 jackell@microsoft.com Implementation of GroupSharedLimit to allow increased GroupSharedMemory (#7871)

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 cwallez@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: cwallez@google.com
Change-Id: Ie49c85648638e60d4e96619da1d2669fb9571f1e
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/285996
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: 8b642f0f9c9455e8e70ed72cef4316afaf7725c4

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.