|author||Tint team <email@example.com>||Mon Jun 20 10:53:10 2022 +0000|
|committer||Tint LUCI CQ <firstname.lastname@example.org>||Mon Jun 20 10:53:10 2022 +0000|
Import Tint changes from Dawn Changes: - a05e31b5af60df895c6e88bdeddb4bac0077ec64 tint/resolver: Clean up parameter resolving by Ben Clayton <email@example.com> - 0a4e2a1373a9b58c5e7170063fcb96d8bdbb576c Remove NOLINT lines from c++17 headers by dan sinclair <firstname.lastname@example.org> - c7f7ca3d9ec1bfabb4061d73848a0a9d1568b413 tint: Simplify ++/-- handling in transform by James Price <email@example.com> - d713669329430ccebbf2c0eb1d3667388adddfcb Tint: Fix VectorizeScalarMatrixConstructors to run for re... by Zhaoming Jiang <firstname.lastname@example.org> - 889a499ef471aa16918f701da4988d1c3b38146d Remove test/tint/BUILD.gn. by dan sinclair <email@example.com> - ecb46b33ccf0aa519ee97577bbb494fb6f5b0630 tint/resolver: Move texture validation to the right place by Ben Clayton <firstname.lastname@example.org> - dcdf66ed5b286b8b67bfb633b86f298f8910f344 tint/ast: Derive off `ast::Variable` by Ben Clayton <email@example.com> - be6fb2a8d2f3c574ef0b3ced7b19c3a6541ece35 tint: Fix emitting vector constant in HLSL writer by Zhaoming Jiang <firstname.lastname@example.org> GitOrigin-RevId: a05e31b5af60df895c6e88bdeddb4bac0077ec64 Change-Id: I5a23ae5d86ab4b6ef364995cc86a515b2359928c Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/94180 Kokoro: Kokoro <email@example.com> Reviewed-by: Ben Clayton <firstname.lastname@example.org> Commit-Queue: Ben Clayton <email@example.com>
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.
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)
Tint uses Chromium dependency management so you need to install depot_tools and add it to your PATH.
# 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
mkdir -p out/Debug cd out/Debug cmake -GNinja ../.. ninja # or autoninja
mkdir -p out/Debug cd out/Debug cmake ../.. make # -j N for N-way parallel build
mkdir -p out/Debug gn gen out/Debug autoninja -C out/Debug
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.
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
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
Please file any issues or feature requests at https://bugs.chromium.org/p/tint/issues/entry
Please see the contributing guide in the Dawn repo.