commit | 9bd7c4192066adaf3a6baea1c7ae56835f92c2ab | [log] [tgz] |
---|---|---|
author | Tint team <no-reply@google.com> | Fri Jan 13 11:52:55 2023 +0000 |
committer | Tint LUCI CQ <tint-scoped@luci-project-accounts.iam.gserviceaccount.com> | Fri Jan 13 11:52:55 2023 +0000 |
tree | f19fb71ea5fed86d39e89551b23afe265020bb3d | |
parent | bc3cf0e9d8ad2e8ddb8eaecd97fcd63699cf128a [diff] |
Import Tint changes from Dawn Changes: - 884f95258d50845d4ea28e901599750099040c8c tint/utils: Add TINT_LIKELY / TINT_UNLIKELY macros by Ben Clayton <bclayton@google.com> - 91d39a7639030d8664fa66dfda79ea159d3801dc tint/resolver: Reduce Hashmap fixed sizes for UA by Ben Clayton <bclayton@google.com> - 42363a5b18b0174f7565f7c2acd6e4410e5ed0ee tint/transform: Skip SimplifyPointers if possible by Ben Clayton <bclayton@google.com> - 3d6c263446502ff72cf11bcd281529d7f2a512f7 tint/utils: Add Log2 and NextPowerOfTwo by Ben Clayton <bclayton@google.com> - 1f9e50edd4d4536d227dd37063b3cf77749c3eef Add another const to arrays of strings in renamer.cc by Brandon Jones <bajones@chromium.org> - 7a41bf1e2f9b24325430d924f2e8c539c1987f79 tint/transform: Skip Unshadow if possible by Ben Clayton <bclayton@google.com> GitOrigin-RevId: 884f95258d50845d4ea28e901599750099040c8c Change-Id: Ie89235b05e7892b40c7279b437f747f704f4ca3f Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/116856 Commit-Queue: Ben Clayton <bclayton@google.com> Reviewed-by: Ben Clayton <bclayton@google.com> Kokoro: Kokoro <noreply+kokoro@google.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 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
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.