|author||Tint team <firstname.lastname@example.org>||Mon Jan 23 09:19:53 2023 +0000|
|committer||Tint LUCI CQ <email@example.com>||Mon Jan 23 09:19:53 2023 +0000|
Import Tint changes from Dawn Changes: - ffe356d558bce8b912890d8080dc7be94c0b0c2d tint/lexer: Add 'diagnostic' keyword by James Price <firstname.lastname@example.org> - 57c0bbc2a5167f6ac63bd2f3b7fe0511c141a195 Move ast/texel_format to type/texel_format. by dan sinclair <email@example.com> - 61c16eb4487e54e0f6b816573b2fe2594b7d8e62 Move ast/access to type/access. by dan sinclair <firstname.lastname@example.org> - e2ff3431f420f4738624e99360f3f502fc15d9b0 Split transforms out to their on source target. by dan sinclair <email@example.com> - 18b2158b4e1431defc212a4b9e16b09ab036523d Move ast/address_space to type/ by dan sinclair <firstname.lastname@example.org> - 3cbf3fc4c520306ab15a54a4e22020fdfd4bb31c Move TextureDimension to type/ by dan sinclair <email@example.com> - d54dabeab522febb901a6567d3b1cd7d063faff8 Split the reader/ and writer/ out of libtint_core_all_src. by dan sinclair <firstname.lastname@example.org> GitOrigin-RevId: ffe356d558bce8b912890d8080dc7be94c0b0c2d Change-Id: I664de48ac60d7f6b49eb040f50e099a75d8e52f7 Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/117524 Kokoro: Kokoro <email@example.com> Commit-Queue: Ben Clayton <firstname.lastname@example.org> Reviewed-by: 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.