[PATCH] D28420: [lit] Limit parallelism of sanitizer tests on Darwin

Kuba (Brecka) Mracek via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Wed Jan 18 11:29:18 PST 2017

kubabrecka added inline comments.

Comment at: utils/lit/lit/run.py:182
+        pg = test.config.parallelism_group
+        if callable(pg): pg = pg(test)
MatzeB wrote:
> kubabrecka wrote:
> > MatzeB wrote:
> > > Supporting callbacks here feels overengineered, but if you have to...
> > I tried really hard not to use a callback, but unfortunately for compiler-rt unittests (gtest-style), we can't just set `config.parallelism_group` at lit launch time -- we only know the architecture after test discovery.  I'm open to suggestions if you can think of a better way of handling this.
> I don't understand exactly what is happening with the gtests here. Do you expect unittests for architectures other than `config.host_os` being present?
> I wouldn't expect us to have infrastructure here to even run tests for targets other than the host...
We have i386 and x86_64 unittests.  Finding which tests are 64-bit can only be done after test discovery.


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