[llvm-dev] Testing End-To-End Functionality of Specific Optimization

[Eli Davis via llvm-dev]

Ah, thank you, that makes sense.

Is there any chance you can point me toward some documentation for how 
to add tests to the test-suite? I've found a fair bit on how to run the 
tests, but nothing on how to add new ones. Is it just as simple as 
adding testcase.c and testscase.reference_output in the appropriate 
directory?

Thanks!


On 01/02/2018 02:50 PM, Nemanja Ivanovic wrote:
> Typically the "end-to-end" test cases reside in `projects/test-suite`. 
> All the test cases there build executable binaries from source, run 
> those and compare the output (as well as the return code) to what's 
> expected. You should probably put your test cases in there. Please 
> note also that there are subcategories there - there are single source 
> file and multiple source file programs. There are those that are meant 
> as benchmarks, unit tests, full applications, etc. I'm sure you can 
> find an appropriate place to add your test cases to.
>
> On Tue, Jan 2, 2018 at 8:16 PM, Eli Davis via llvm-dev 
> <llvm-dev at lists.llvm.org <mailto:llvm-dev at lists.llvm.org>> wrote:
>
>     Hello!
>
>     I am writing an instrumentation pass using LLVM. I have unit tests
>     using llvm-lit in the style of the tests in llvm/test to make sure
>     the IR changes show up in the correct place. I would also like to
>     have some end-to-end tests that start from a .c file, compile the
>     program, run it, and check the output.
>
>     I imagine I could do this as a test in the same style, but I'm
>     wondering if that's the llvm-correct way of doing it. Can anyone
>     advise?
>
>     Thank you!
>
>     Eli
>
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