[flang-dev] Porting F18 tests to use LLVM lit
Luke Ireland via flang-dev
flang-dev at lists.llvm.org
Wed Jan 15 08:45:14 PST 2020
Further to the conversation in llvm-dev<http://lists.llvm.org/pipermail/llvm-dev/2020-January/138282.html>, regarding LLVM testing infrastructure/lit, and the successfully merged patch from Carol<https://github.com/flang-compiler/f18/pull/861/commits/1049aeb81e0195d3fa1050b21e93a3980a0b7245>, we’re continuing development on adding this infrastructure by porting the existing tests to be compatible with lit.
We’d like to propose the following approach:
1. Start off with a new directory, “test-lit” containing lit tests
2. make check-all will run this and the old test directory together
3. port over all old tests to this new directory as lit tests
4. Once all tests are successfully ported, the old directory and test scripts are removed, and “test-lit” becomes “test”.
5. All new tests will be created to be compatible with lit.
During this transition phase, tests can either be written in the old style, and then ported with my script, or preferably, written to work with lit.
My PR has three patches:
1. A script which ports old style tests to new lit tests. At the moment it only handles semantic error tests, i.e. tests run with check_error.sh
2. The output of the porting script on a subset of the tests for verification. The subset of tests should cover all variations of error tests in my script
3. All the remaining error tests from semantics ported to lit.
My next steps:
1. Port remaining semantic test types
2. Port decimal tests
3. Port evaluate tests
4. Port preprocessing tests (They aren’t in CMakeLists.txt, but are easily portable)
Each step will come as a pull request in a similar format:
1. Script change to handle new test type
2. Ported tests added
* Either in 2 commits (verified, remaining – likely for changes with a large number of tests)
* Or all in 1 commit (small number of tests)
3. Old style tests removed
My initial PR is here<https://github.com/flang-compiler/f18/pull/934>.
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