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David Zarzycki 4d99d51ea2 [lit] Add "early_tests" config option With enough cores, the slowest tests can significantly change the total testing time if they happen to run late. With this change, a test suite can improve performance (for high-end systems) by listing just a few of the slowest tests up front. Reviewed By: jdenny, jhenderson Differential Revision: https://reviews.llvm.org/D96594		2021-02-17 06:32:04 -05:00
..
examples
lit	[lit] Add "early_tests" config option	2021-02-17 06:32:04 -05:00
tests	[lit] Add "early_tests" config option	2021-02-17 06:32:04 -05:00
utils
CMakeLists.txt
LICENSE.TXT	[lit] Ship and bundle license for lit package	2020-10-30 15:34:00 +01:00
lit.py	[lit] Update lit.py shebang for Python3	2021-01-25 17:29:57 -08:00
MANIFEST.in
README.txt
setup.py	[Branch-Rename] Fix some links	2021-02-01 16:43:21 +05:30

README.txt

===============================
 lit - A Software Testing Tool
===============================

lit is a portable tool for executing LLVM and Clang style test suites,
summarizing their results, and providing indication of failures. lit is designed
to be a lightweight testing tool with as simple a user interface as possible.

=====================
 Contributing to lit
=====================

Please browse the Test Suite > lit category in LLVM's Bugzilla for ideas on
what to work on.

Before submitting patches, run the test suite to ensure nothing has regressed:

    # From within your LLVM source directory.
    utils/lit/lit.py \
        --path /path/to/your/llvm/build/bin \
        utils/lit/tests

Note that lit's tests depend on 'not' and 'FileCheck', LLVM utilities.
You will need to have built LLVM tools in order to run lit's test suite
successfully.

You'll also want to confirm that lit continues to work when testing LLVM.
Follow the instructions in http://llvm.org/docs/TestingGuide.html to run the
regression test suite:

    make check-llvm

And be sure to run the llvm-lit wrapper script as well:

    /path/to/your/llvm/build/bin/llvm-lit utils/lit/tests

Finally, make sure lit works when installed via setuptools:

    python utils/lit/setup.py install
    lit --path /path/to/your/llvm/build/bin utils/lit/tests