|author||Tint team <email@example.com>||Wed Jul 27 09:39:42 2022 +0000|
|committer||Tint LUCI CQ <firstname.lastname@example.org>||Wed Jul 27 09:39:42 2022 +0000|
Import Tint changes from Dawn Changes: - 48085845bddacd3bd7d7146f27646d95a7b6a707 tint/ast: Clean up StorageClass enum by Ben Clayton <email@example.com> - c768e640f429fe19740f5e8d3c7b135dd4dba685 tint/intrinsics.def: Change language for enums by Ben Clayton <firstname.lastname@example.org> - 02e9ce19ecbcf422760fd12b00cefba3cf721945 tint: Make tint::ast::HasAttribute() accept multiple temp... by Ben Clayton <email@example.com> - cde5009be385c506822749eb4f450cb551476678 tools: Shuffle 'intrinsic-gen' tooling by Ben Clayton <firstname.lastname@example.org> - 62c58a076c1a33cae265f77fe54f974bff12f630 Stay at the EOF or Error token. by dan sinclair <email@example.com> - 0fba14e3c6d4bea904c3291de951578dd4a7d2db tint/val: Make DXC validation output stable by Ben Clayton <firstname.lastname@example.org> - e9585f554879effaff9c80dc55bdecfe14b033b9 tint/val: Fix HLSL validation with DXC by Ben Clayton <email@example.com> GitOrigin-RevId: 48085845bddacd3bd7d7146f27646d95a7b6a707 Change-Id: I885c9ac05232f9551aefc230c4334c66f12c284c Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/97320 Kokoro: Kokoro <firstname.lastname@example.org> Commit-Queue: Ben Clayton <email@example.com> Reviewed-by: Ben Clayton <firstname.lastname@example.org>
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.