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lit's test suite calls lit multiple times for various sample test suites. `FILECHECK_OPTS` is safe for FileCheck calls in lit's test suite. It's not safe for FileCheck calls in the sample test suites, whose output affects the results of lit's test suite. Without this patch, only one such sample test suite is protected from `FILECHECK_OPTS`, and I admit I haven't discovered other cases for which I can produce false failures using `FILECHECK_OPTS`. However, it's hard to predict the future, especially false passes. Thus, this patch protects all existing and future sample test suites from `FILECHECK_OPTS` (and the deprecated `FILECHECK_DUMP_INPUT_ON_FAILURE`). Reviewed By: probinson Differential Revision: https://reviews.llvm.org/D65156 llvm-svn: 366980
===============================
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