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dawn / dawn / afa5617f6fd288a16b7755aa03dbafe330216ec4
commitafa5617f6fd288a16b7755aa03dbafe330216ec4[log] [tgz]
authorJames Price <jrprice@google.com>Mon Jun 19 16:23:17 2023 +0000
committerDawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com>Mon Jun 19 16:23:17 2023 +0000
tree96224c3862b2f48a758ef18cb9749b98fd42f443
parentaabfc4d85bc39c3ff28670d22cfada276b94860a [diff]
[ir][spirv-writer] Add MergeReturn transform

Each return instruction is replaced with instructions that set a flag
to indicate the function is returning, capture the return value, and
exit from the current block to the nearest merge block. The code in
the merge block is then conditionalized based on that flag. A single
return instructions is then added to the final merge block of the
function.

This is needed to ensure that we adhere to SPIR-V's uniformity
requirements.

Use it in the SPIR-V writer.

Bug: tint:1906
Change-Id: I80edef751acc8e807a78e55549244a61726b462e
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/137340
Reviewed-by: Dan Sinclair <dsinclair@chromium.org>
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: James Price <jrprice@google.com>
10 files changed
tree: 96224c3862b2f48a758ef18cb9749b98fd42f443
  1. .vscode/
  2. build_overrides/
  3. docs/
  4. generator/
  5. include/
  6. infra/
  7. scripts/
  8. src/
  9. test/
  10. third_party/
  11. tools/
  12. webgpu-cts/
  13. .clang-format
  14. .clang-tidy
  15. .gitattributes
  16. .gitignore
  17. .gn
  18. AUTHORS
  19. BUILD.gn
  20. CMakeLists.txt
  21. CMakeSettings.json
  22. CODE_OF_CONDUCT.md
  23. codereview.settings
  24. CONTRIBUTING.md
  25. CPPLINT.cfg
  26. dawn.json
  27. dawn_wire.json
  28. DEPS
  29. DIR_METADATA
  30. Doxyfile
  31. go.mod
  32. go.sum
  33. go_presubmit_support.py
  34. LICENSE
  35. OWNERS
  36. PRESUBMIT.py
  37. README.chromium
  38. README.md
  39. tint_overrides_with_defaults.gni
README.md

Dawn's logo: a sun rising behind a stylized mountain inspired by the WebGPU logo. The text Dawn is written below it.

Dawn, a WebGPU implementation

Dawn is an open-source and cross-platform implementation of the work-in-progress 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)

Status

(TODO)

License

Apache 2.0 Public License, please see LICENSE.

Disclaimer

This is not an officially supported Google product.