Google Git
Sign in
dawn / tint / 67e471d007772e0f780164cb7d83bc55f7ae28e3
commit67e471d007772e0f780164cb7d83bc55f7ae28e3[log] [tgz]
authorTint team <no-reply@google.com>Wed Feb 21 16:27:13 2024 +0000
committerTint LUCI CQ <tint-scoped@luci-project-accounts.iam.gserviceaccount.com>Wed Feb 21 16:27:13 2024 +0000
tree4e92be645f36acd67a0106d0e619f96b81d7953e
parent4e0096399d0864b994825d41981c75b5989886b9 [diff]
Import Tint changes from Dawn

Changes:
  - aed92a6ec9c4f63c389a053c7b923aa291045318 [msl] Fix issue with module scoped private var and modf. by dan sinclair <dsinclair@chromium.org>
  - 6c338006902175648208340178d7eeefa922c83f [tint][core] Remove implicit ctor / conv type overloads by Ben Clayton <bclayton@google.com>
  - e435124ed595cd69548c844b0dd333578f980634 [tint][docs] Move .def documentation to a markdown file by Ben Clayton <bclayton@google.com>
  - 52e6a0f4a91b9b33f685970f5b8caa503fe2dd9a [tint][wgsl] Remove ast::Bitcast, use intrinsic definitio... by Ben Clayton <bclayton@google.com>
  - 86d1ad090e562aa1177ff27fe309b9babe96f383 [tint][wgsl] Add bitcast entries to wgsl.def by Ben Clayton <bclayton@google.com>
  - feb003358b8046c50e0c5db4ca500753ea336098 [tint][intrinsics] Optimize overload matching. by Ben Clayton <bclayton@google.com>
  - 17770f5f1727e1d7ebb6acf68bf51db7b264b2b0 [tint][intrinsics] Add explicit template arguments by Ben Clayton <bclayton@google.com>
  - ae328e657207720048698c82510cbce62b82fdca Fix clang-tidy/checks/misc-include-cleaner warnings by David Neto <dneto@google.com>
  - 7deee4245e564841d4a84ea2fac4ab4e5dd9580b [tint][intrinsics] Change intrinsic template syntax from ... by Ben Clayton <bclayton@google.com>
GitOrigin-RevId: aed92a6ec9c4f63c389a053c7b923aa291045318
Change-Id: Iebe910ca014fb1a9fa15d0989be719a3e9187b76
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/175720
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
76 files changed
tree: 4e92be645f36acd67a0106d0e619f96b81d7953e
  1. .vscode/
  2. build_overrides/
  3. docs/
  4. include/
  5. infra/
  6. kokoro/
  7. scripts/
  8. src/
  9. third_party/
  10. tools/
  11. .clang-format
  12. .gitignore
  13. .gn
  14. AUTHORS
  15. BUILD.gn
  16. CMakeLists.txt
  17. CMakeSettings.json
  18. CODE_OF_CONDUCT.md
  19. CPPLINT.cfg
  20. DEPS
  21. LICENSE
  22. OWNERS
  23. PRESUBMIT.py
  24. README.md
  25. standalone.gclient
README.md

Tint

Note: This repo is read-only, minimized mirror of the Dawn repo.

Tint changes should be made in the Dawn repo.

Tint is a compiler for the WebGPU Shader Language (WGSL).

This is not an officially supported Google product.

Requirements

  • Git
  • CMake (3.10.2 or later)
  • Ninja (or other build tool)
  • Python, for fetching dependencies
  • depot_tools in your path

Build options

  • TINT_BUILD_SPV_READER : enable the SPIR-V input reader (off by default)
  • TINT_BUILD_WGSL_READER : enable the WGSL input reader (on by default)
  • TINT_BUILD_SPV_WRITER : enable the SPIR-V output writer (on by default)
  • TINT_BUILD_WGSL_WRITER : enable the WGSL output writer (on by default)
  • TINT_BUILD_FUZZERS : enable building fuzzzers (off by default)

Building

Tint uses Chromium dependency management so you need to install depot_tools and add it to your PATH.

Getting source & dependencies

# Clone the repo as "tint"
git clone https://dawn.googlesource.com/tint tint
cd tint

# Bootstrap the gclient configuration
cp standalone.gclient .gclient

# Fetch external dependencies and toolchains with gclient
gclient sync

Compiling using CMake + Ninja

mkdir -p out/Debug
cd out/Debug
cmake -GNinja ../..
ninja # or autoninja

Compiling using CMake + make

mkdir -p out/Debug
cd out/Debug
cmake ../..
make # -j N for N-way parallel build

Compiling using gn + ninja

mkdir -p out/Debug
gn gen out/Debug
autoninja -C out/Debug

Fuzzers on MacOS

If you are attempting fuzz, using TINT_BUILD_FUZZERS=ON, the version of llvm in the XCode SDK does not have the needed libfuzzer functionality included.

The build error that you will see from using the XCode SDK will look something like this:

ld: file not found:/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/clang/11.0.0/lib/darwin/libclang_rt.fuzzer_osx.a

The solution to this problem is to use a full version llvm, like what you would get via homebrew, brew install llvm, and use something like CC=<path to full clang> cmake .. to setup a build using that toolchain.

Checking [chromium-style] issues in CMake builds

The gn based work flow uses the Chromium toolchain for building in anticipation of integration of Tint into Chromium based projects. This toolchain has additional plugins for checking for style issues, which are marked with [chromium-style] in log messages. This means that this toolchain is more strict then the default clang toolchain.

In the future we will have a CQ that will build this work flow and flag issues automatically. Until that is in place, to avoid causing breakages you can run the [chromium-style] checks using the CMake based work flows. This requires setting CC to the version of clang checked out by gclient sync and setting the TINT_CHECK_CHROMIUM_STYLE to ON.

mkdir -p out/style
cd out/style
cmake ../..
CC=../../third_party/llvm-build/Release+Asserts/bin/clang cmake -DTINT_CHECK_CHROMIUM_STYLE=ON ../../ # add -GNinja for ninja builds

Issues

Please file any issues or feature requests at https://bugs.chromium.org/p/tint/issues/entry

Contributing

Please see the contributing guide in the Dawn repo.