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README.txt

      1 ===============================
      2  lit - A Software Testing Tool
      3 ===============================
      4 
      5 lit is a portable tool for executing LLVM and Clang style test suites,
      6 summarizing their results, and providing indication of failures. lit is designed
      7 to be a lightweight testing tool with as simple a user interface as possible.
      8 
      9 =====================
     10  Contributing to lit
     11 =====================
     12 
     13 Please browse the Test Suite > lit category in LLVM's Bugzilla for ideas on
     14 what to work on.
     15 
     16 Before submitting patches, run the test suite to ensure nothing has regressed:
     17 
     18     # From within your LLVM source directory.
     19     utils/lit/lit.py \
     20         --path /path/to/your/llvm/build/bin \
     21         utils/lit/tests
     22 
     23 Note that lit's tests depend on 'not' and 'FileCheck', LLVM utilities.
     24 You will need to have built LLVM tools in order to run lit's test suite
     25 successfully.
     26 
     27 You'll also want to confirm that lit continues to work when testing LLVM.
     28 Follow the instructions in http://llvm.org/docs/TestingGuide.html to run the
     29 regression test suite:
     30 
     31     make check-llvm
     32 
     33 And be sure to run the llvm-lit wrapper script as well:
     34 
     35     /path/to/your/llvm/build/bin/llvm-lit utils/lit/tests
     36 
     37 Finally, make sure lit works when installed via setuptools:
     38 
     39     python utils/lit/setup.py install
     40     lit --path /path/to/your/llvm/build/bin utils/lit/tests
     41 
     42