[llvm-dev] How to run single compiler-rt test in monorepo?

[Johan Engelen via llvm-dev]

Thanks Vitaly and Vedant.
Both methods worked for me.
The trick for running llvm-lit directly is to add the arch in the path
(actually part of the directory structure inside the build folder, so I
could have known).

cheers,
  Johan


On Fri, Nov 1, 2019 at 12:30 AM Vedant Kumar <vedant_kumar at apple.com> wrote:

> It's also possible to run lit on a test directory that's constructed
> within the build dir, e.g.:
>
> ~/src/builds/llvm-project-master-RA (0) $ ./bin/llvm-lit
> projects/compiler-rt/test/profile/Profile-x86_64h/instrprof-basic.c
>
> vedant
>
> On Oct 31, 2019, at 3:44 PM, Vitaly Buka via llvm-dev <
> llvm-dev at lists.llvm.org> wrote:
>
> I usually run single tests (compiler-rt and LLVM) as
> LIT_FILTER=<testname> ninja check-<component>
>
> On Thu, Oct 31, 2019 at 3:33 PM Johan Engelen via llvm-dev <
> llvm-dev at lists.llvm.org> wrote:
>
>> Hello all,
>>   I am having trouble running only a single lit-based test of compiler-rt.
>> My folder structure is: inside the llvm monorepo checkout, I have a dir
>> "build" with subdir "buildtrunk". I ran cmake inside "buildtrunk" and also
>> run ninja from there.
>>
>> For LLVM I can do the following:
>> > cd build/buildtrunk/test
>> > ../bin/llvm-lit  --show-tests .
>> And it shows all tests discovered of the llvm main library, but not tests
>> of for example clang or compiler-rt.
>> Running a single test works aswell:
>> > ../bin/llvm-lit -v tools/yaml2obj/versym-section.yaml
>> -- Testing: 1 tests, 1 workers --
>> PASS: LLVM :: tools/yaml2obj/versym-section.yaml (1 of 1)
>> ...
>>
>> However whatever I try, I have not succeeded in having Lit discover the
>> compiler-rt tests, and I didn't manage to run just one compiler-rt test.
>> Information online is sparse, and I didn't find it there either.
>>
>> What is are command / How do I run a single lit-based compiler-rt test?
>>
>> Thanks a lot,
>>   Johan
>>
>>
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