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dawn / dawn / a9a685f04aa86252d6b3fd7a3927d2727db5f97e
commita9a685f04aa86252d6b3fd7a3927d2727db5f97e[log] [tgz]
authorNatalie Chouinard <chouinard@google.com>Wed Jul 17 13:45:58 2024 +0000
committerDawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com>Wed Jul 17 13:45:58 2024 +0000
tree843813de5babe446fc7fe3003ed3737cce0db742
parente96e532859be477129bb7015a6ab14fdb39efc30 [diff]
[Tint] Fix const eval of abstract shift right

When the value to shift by is greater than or equal to the bit width of an abstract value to shift, the value will be replaced with all 0s if it was non-negative, and all 1s if it was negative, which signifies the value -1.

With this change the following CTS tests now pass:
webgpu:shader,execution,expression,binary,bitwise_shift:shift_right_abstract:*

Bug: 352768986
Change-Id: I8a80d475762b1a4c0cbe9b59506b300c31c68050
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/198735
Commit-Queue: Natalie Chouinard <chouinard@google.com>
Reviewed-by: dan sinclair <dsinclair@chromium.org>
2 files changed
tree: 843813de5babe446fc7fe3003ed3737cce0db742
  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-tidy
  20. .gitattributes
  21. .gitignore
  22. .gitmodules
  23. .gn
  24. AUTHORS
  25. BUILD.bazel
  26. BUILD.gn
  27. CMakeLists.txt
  28. CMakeSettings.json
  29. CODE_OF_CONDUCT.md
  30. codereview.settings
  31. CONTRIBUTING.md
  32. CPPLINT.cfg
  33. DEPS
  34. DIR_METADATA
  35. go.mod
  36. go.sum
  37. go_presubmit_support.py
  38. LICENSE
  39. OWNERS
  40. PRESUBMIT.py
  41. README.chromium
  42. README.md
  43. 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.