Import Tint changes from Dawn

Changes:
  - 837b8042d382e1b0618892bab2aa87fef2500e44 Rename TypeManager to Manager. by dan sinclair <dsinclair@chromium.org>
  - 98705d417ee3f7829493b6089633547d301e14d9 Remove type:: prefix in type/ folder. by dan sinclair <dsinclair@chromium.org>
  - 946858ad5670fcf9134c770ff198ec1036ec1af6 Move array to type/ by dan sinclair <dsinclair@chromium.org>
  - f53b2b5b2e4b478cec3cf2bca85157b7e1f8b4c5 Split sem/struct into sem and type. by dan sinclair <dsinclair@chromium.org>
  - d8a084585f46a381f5847530a663e0ec66a4db76 Move atomic to type/ by dan sinclair <dsinclair@chromium.org>
  - 0e780da882461f4e66f6466aa32f0aa74c09d522 Move vector and matrix to type/. by dan sinclair <dsinclair@chromium.org>
  - 06c1af47bd5c84dcb0c8d8a9d4d083396f871ec6 tint: Fix Renamer transform with type short-names by Ben Clayton <bclayton@google.com>
  - d00663d882df7138e9fb3655b829cdcad78a11c4 tint: Move resolver/type_alias to type/short_name by Ben Clayton <bclayton@google.com>
  - 04f792de9f4977223b1fbd31770167517ae8d727 tint/transform: Use InsertFront to add attribute by James Price <jrprice@google.com>
  - 48802bb9ea335a538d642b7b9e6ec47d628ec3b8 tint/transform: Remove commented out code by James Price <jrprice@google.com>
  - 4d56b48bbf1bc4128a7f630490290660696dc773 Move pointer and ref to type/ by dan sinclair <dsinclair@chromium.org>
  - d37ecf9055948dbdb3dc8ffdfbb579a619f35802 Move scalar types over to type/ folder. by dan sinclair <dsinclair@chromium.org>
  - c223ae26ec19db3a1b3a5ce0c8c19e234037da1d spirv-reader: support SSign extended instruction by David Neto <dneto@google.com>
  - 094ace6f63bddc8de24ae437e5ab462cca9e01d5 Move abstract types to type folder. by dan sinclair <dsinclair@chromium.org>
  - 5ee58b60a845f5bd11c843926495e650b8cbb118 Move sampler to type. by dan sinclair <dsinclair@chromium.org>
  - 4595fb7989093a5a72878f21840737f5fa1655da Move texture types to type/ folder. by dan sinclair <dsinclair@chromium.org>
  - c9949ac59e50cec45f8bfceaef4358fa2e929971 Move type_manager to type/ folder by dan sinclair <dsinclair@chromium.org>
GitOrigin-RevId: 837b8042d382e1b0618892bab2aa87fef2500e44
Change-Id: If0f785f11c104e6cf2ff99928a930c56007e33c0
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/113544
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
219 files changed
tree: bf904ac1b10360ab6455295e9dcda6256f9da8e4
  1. .vscode/
  2. build_overrides/
  3. docs/
  4. include/
  5. infra/
  6. kokoro/
  7. src/
  8. third_party/
  9. tools/
  10. .clang-format
  11. .gitignore
  12. .gn
  13. AUTHORS
  14. BUILD.gn
  15. CMakeLists.txt
  16. CMakeSettings.json
  17. CODE_OF_CONDUCT.md
  18. CPPLINT.cfg
  19. DEPS
  20. Doxyfile
  21. LICENSE
  22. OWNERS
  23. PRESUBMIT.py
  24. README.md
  25. standalone.gclient
  26. tint_overrides_with_defaults.gni
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.