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James Henderson 83804e2bc6 [lit] Stop using PATH to lookup clang/lld/lldb unless requested This patch stops lit from looking on the PATH for clang, lld and other users of use_llvm_tool (currently only the debuginfo-tests) unless the call explicitly requests to opt into using the PATH. When not opting in, tests will only look in the build directory. See the mailing list thread starting from https://lists.llvm.org/pipermail/llvm-dev/2021-May/150421.html. See the review for details of why decisions were made about when still to use the PATH. Reviewed by: thopre Differential Revision: https://reviews.llvm.org/D102630		2021-05-18 10:43:33 +01:00
..
examples
lit	[lit] Stop using PATH to lookup clang/lld/lldb unless requested	2021-05-18 10:43:33 +01:00
tests	[lit][test] Attempt fix when paths include symlink	2021-05-07 09:21:58 +01:00
utils
CMakeLists.txt
LICENSE.TXT
lit.py
MANIFEST.in
README.txt
setup.py

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