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dawn/dawn/93501f8c5c87a0a2d057ee4147108fd238cdfd93
commit
93501f8c5c87a0a2d057ee4147108fd238cdfd93
[log]
author
Natalie Chouinard <chouinard@google.com>
Fri Feb 27 18:13:53 2026 -0800
committer
Dawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com>
Fri Feb 27 18:13:53 2026 -0800
tree
4d4319e55cb014fe59cd945edad896ac2747fcc4
parent
0e9fde4e362e8e402c7ca3cc3d241775eb80bdb8 [diff]
[tint] Fix swizzle assignment eval order

Fix the order of evaluation for swizzle assignment so the lhs vector
pointer is evaluated before the right hand side.

Note that for the case of a compound swizzle assignment, the lhs is
loaded twice, to account for the fact that the lhs may be modified in
the evaluation of the rhs.

CTS: https://github.com/gpuweb/cts/pull/4608

Fixes: 486839102
Change-Id: I1ca154b23938eebfc02ad8b29e55343aa12bdc01
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/293835
Commit-Queue: Natalie Chouinard <chouinard@google.com>
Reviewed-by: James Price <jrprice@google.com>
3 files changed
tree: 4d4319e55cb014fe59cd945edad896ac2747fcc4
  1. .github/
  2. .vscode/
  3. build_overrides/
  4. docs/
  5. generator/
  6. include/
  7. infra/
  8. scripts/
  9. src/
  10. test/
  11. third_party/
  12. tools/
  13. webgpu-cts/
  14. build
  15. buildtools
  16. testing
  17. .bazelrc
  18. .clang-format
  19. .clang-format-ignore
  20. .clang-tidy
  21. .git-blame-ignore-revs
  22. .gitattributes
  23. .gitignore
  24. .gitmodules
  25. .gn
  26. .style.yapf
  27. .vpython3
  28. AUTHORS
  29. BUILD.bazel
  30. BUILD.gn
  31. CMakeLists.txt
  32. CMakeSettings.json
  33. CODE_OF_CONDUCT.md
  34. codereview.settings
  35. CONTRIBUTING.md
  36. CPPLINT.cfg
  37. DEPS
  38. DIR_METADATA
  39. go.mod
  40. go.sum
  41. go_presubmit_support.py
  42. LICENSE
  43. OWNERS
  44. PRESUBMIT.py
  45. README.chromium
  46. README.md
  47. test_spec_presubmit_support.py
  48. unsafe_buffers_paths.txt
  49. WATCHLISTS
  50. WORKSPACE.bazel
README.md

Build Status Matrix Space

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:

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.