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dawn/dawn/c83c13b07aefea72f566057792d5501cdc47e574
commit
c83c13b07aefea72f566057792d5501cdc47e574
[log]
author
Steven Perron <stevenperron@google.com>
Wed Aug 26 16:12:53 2026 -0700
committer
dawn-scoped@luci-project-accounts.iam.gserviceaccount.com <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com>
Wed Aug 26 16:12:53 2026 -0700
tree
43b76d3430521d4476601da27dad47e79cf212ce
parent
56b65679a2ccd696c8ffd8d0927c0423529c6b27 [diff]
[ir] Validate constexpr_if branch terminators are exit_if

ConstExprIf instructions represent constant/override-evaluated boolean
expressions and must be able to fold to a constant value. A branch with
a terminator other than exit_if (such as return) cannot fold to a
constant value.

This change adds a validation rule that both the true and false blocks
of a constexpr_if must terminate with an exit_if instruction.

Bug: 549364613
Change-Id: Ib13afe0ad586c5b86d4394274aba111e4b0ce952
TAG=agy
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/336715
Reviewed-by: James Price <jrprice@google.com>
Commit-Queue: James Price <jrprice@google.com>
Auto-Submit: Steven Perron <stevenperron@google.com>
Commit-Queue: Steven Perron <stevenperron@google.com>
2 files changed
tree: 43b76d3430521d4476601da27dad47e79cf212ce
  1. .github/
  2. .vscode/
  3. agents/
  4. build_overrides/
  5. docs/
  6. generator/
  7. include/
  8. infra/
  9. scripts/
  10. src/
  11. test/
  12. third_party/
  13. tools/
  14. webgpu-cts/
  15. build
  16. buildtools
  17. testing
  18. .bazelignore
  19. .bazelrc
  20. .bazelversion
  21. .clang-format
  22. .clang-format-ignore
  23. .clang-tidy
  24. .git-blame-ignore-revs
  25. .gitattributes
  26. .gitignore
  27. .gitmodules
  28. .gn
  29. .style.yapf
  30. .vpython3
  31. AUTHORS
  32. BUILD.bazel
  33. BUILD.gn
  34. CMakeLists.txt
  35. CMakeSettings.json
  36. CODE_OF_CONDUCT.md
  37. codereview.settings
  38. CONTRIBUTING.md
  39. CPPLINT.cfg
  40. DEPS
  41. DIR_METADATA
  42. go.mod
  43. go.sum
  44. go_presubmit_support.py
  45. LICENSE
  46. MODULE.bazel
  47. MODULE.bazel.lock
  48. OWNERS
  49. PRESUBMIT.py
  50. PRESUBMIT_test.py
  51. README.chromium
  52. README.md
  53. unsafe_buffers_paths.txt
  54. WATCHLISTS
  55. 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.