| name | lit-to-bazel |
| description | Converts MLIR lit test files to `bazel run` commands. Use when you need to convert a failing MLIR lit test target (containing RUN lines) to a shell command whose flags can be modified for further analysis and debugging. |
Lit To Bazel
Overview
This skill guides the agent in using the lit_to_bazel tool to convert MLIR
test files to executable commands.
Usage
Converting a Test File
To convert a lit test file to a bazel run command, use the following command
recipes:
bazel run //third_party/heir/scripts:lit_to_bazel -- {test_file_path}
Replace {test_file_path} with the absolute path to the test file. The absolute
path is necessary because the bazel run command runs relative to its runfiles
directory, and so a relative path will not be relative to the VCS root of the
project.
Gotchas
- Absolute Paths: The tool replaces
%s in RUN lines with the absolute path
of the test file to ensure it works in the sandbox.
- Piped RUN commands: The tool supports piped RUN lines, such as piping
heir-opt into heir-translate.
- Complex RUN commands: Some very complex RUN lines are not supported, such
as lit test files with multiple RUN lines that interact via writing to and
reading from temporary files. When encountering situations like this, you
should stop and warn the user.
- Non-lit tests: Some test targets are not lit tests, and these do not need
the
lit_to_bazel tool.
Copy this checklist and track progress:
- [ ] Step 1: Identify the test file to convert.
- [ ] Step 2: Run the `lit_to_bazel` tool on the file.
- [ ] Step 3: Inspect the generated command or run it.
- [ ] Step 4: Verify execution results.
