| commit | cd200cb73687f5b697d77483771927de6824da56 | [log] [tgz] |
|---|---|---|
| author | Tint team <no-reply@google.com> | Thu Dec 28 23:35:00 2023 +0000 |
| committer | Tint LUCI CQ <tint-scoped@luci-project-accounts.iam.gserviceaccount.com> | Thu Dec 28 23:35:00 2023 +0000 |
| tree | 13ec5a62cdb4717a48c8eb8519e51e4e9bf81646 | |
| parent | f1c2fa9e39b93ca94735dd5eb2d996d2a1d082e1 [diff] |
Import Tint changes from Dawn Changes: - 26dc5f6989a35758ee466e8b2df5cebc983058ab msl ast_writer: Prevent emitted loops from erasure during... by David Neto <dneto@google.com> - 2be279ee795b144ba43171c943c09707eda4480e Fix the comparator used to sort output attributes by David Neto <dneto@google.com> - ece88f74027f2554bc6c98d0194eca9f4de4eb46 spir-v ast writer: Fix order of dpdx and dpdy operands by David Neto <dneto@google.com> GitOrigin-RevId: 26dc5f6989a35758ee466e8b2df5cebc983058ab Change-Id: Iea9f5e89f2f48cf98db233add45846845aa6b03c Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/166980 Reviewed-by: Ben Clayton <bclayton@google.com> Commit-Queue: Copybara Prod <copybara-worker@google.com> Commit-Queue: 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.