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dawn / tint / 0c0084b9f89333c0400e57e9f2fbf47a758840b7
commit0c0084b9f89333c0400e57e9f2fbf47a758840b7[log] [tgz]
authorTint team <no-reply@google.com>Tue Sep 26 16:00:10 2023 +0000
committerTint LUCI CQ <tint-scoped@luci-project-accounts.iam.gserviceaccount.com>Tue Sep 26 16:00:10 2023 +0000
tree13c3a2be808fd54222cd49d2e2a94a8aa8310128
parentae9d62071e4ffc4a00f3271531e78d5a51179e5a [diff]
Import Tint changes from Dawn

Changes:
  - b133c649c15f4936922804a4ece255559231f5ff [ir] Make root block always exist by dan sinclair <dsinclair@chromium.org>
  - 1d76252ce6b75860749fec957f0772823f752554 Remove `access_controls` from generic remapper options. by dan sinclair <dsinclair@chromium.org>
  - 707a5720ce5449d4ff495e1f56bfa587ee93fae5 [ir] Add ZeroInitWorkgroupMemory transform by James Price <jrprice@google.com>
  - 244cac957b325a8123bc162e1fc36162bca81dc7 Reorder options structures. by dan sinclair <dsinclair@chromium.org>
  - 16ce253b81aad7e36fed7cd1126949eb1501f3f1 OpenGL: fix multiplanar external textures. by Stephen White <senorblanco@chromium.org>
  - d0dfa74b4547dc250015b051d8bc3bfb5f341f00 [tint][ir] Add more validation by Ben Clayton <bclayton@google.com>
  - 5021631259fce929a3417909cc9fd70506f19602 [tint][ir] Make type construction and conversion unsequen... by Ben Clayton <bclayton@google.com>
  - dfc815c4ed2b85cc3a7b33895b823f58af24e8e5 [tint] Fork core builtin functions from core -> WGSL by Ben Clayton <bclayton@google.com>
  - c511ffb3fa4187b68aba998e30e12752639c5d95 dawn: Add install command to CMakeLists files by munoza <aura.munoz@autodesk.com>
  - eb44794b36a6cbb865a333057c770ef16cd166d5 [tint][ir] Remove BuiltinCall::IntrinsicName() by Ben Clayton <bclayton@google.com>
  - 30c31a99f0cfb54e1946e6ac8483c22ba378d2b6 [tint][ir] Pass ir::Module by reference, not pointer by Ben Clayton <bclayton@google.com>
  - 16fb254dc3083711a1da6a2a5118cc4eb3f59b03 [tint] Add a diag::List to tint::Failure by Ben Clayton <bclayton@google.com>
GitOrigin-RevId: b133c649c15f4936922804a4ece255559231f5ff
Change-Id: Ibeb3da4099bda48fab9f14bf44981b988c092b76
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/153501
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
318 files changed
tree: 13c3a2be808fd54222cd49d2e2a94a8aa8310128
  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. Doxyfile
  22. LICENSE
  23. OWNERS
  24. PRESUBMIT.py
  25. README.md
  26. 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.