|author||Tint team <firstname.lastname@example.org>||Thu Jun 16 10:18:28 2022 +0000|
|committer||Tint LUCI CQ <email@example.com>||Thu Jun 16 10:18:28 2022 +0000|
Import Tint changes from Dawn Changes: - 3e38d7effeae4dc7bceb44b928046a58deb79708 tint: Remove support for smoothStep builtin by James Price <firstname.lastname@example.org> - 446b1a7df14cb98923a688caadf31fefa9daa9ff tint/clone_context.h: Template the vector allocator type by Ben Clayton <email@example.com> - 2032d034002a8002774a996b4707ca6b082949c6 tint/transform: Remove use of StorageClass on parameter by Ben Clayton <firstname.lastname@example.org> - 7bdeb49d641a853b2e7cc07cb2e45a59aa83d82d Fix comment on constructor parameter by David Neto <email@example.com> - 2ae29830db8d1ec4cc0d7fa3e2c8d0bfe8f593fa tint: Add ast::ParameterList, use it by Ben Clayton <firstname.lastname@example.org> - 7164b97272bed8987409c0289690960f5633becd tint: Clean up Func() usage by Ben Clayton <email@example.com> - 93928b0d197e375f877a0c8bc74e063b36feb622 spirv-reader: Don't hoist builtin vars. by David Neto <firstname.lastname@example.org> GitOrigin-RevId: 3e38d7effeae4dc7bceb44b928046a58deb79708 Change-Id: Ifd65b8ea0479c32c64547a092399a3d2d76c4330 Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/93818 Reviewed-by: Ben Clayton <email@example.com> Commit-Queue: Ben Clayton <firstname.lastname@example.org> Kokoro: Kokoro <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.