We have a buildbot setup to uncover such cases of non-determinism:
http://lab.llvm.org:8011/builders/reverse-iteration
The idea is to iterate unordered containers in reverse to weed out
pointer ordering issues.
Another instance of non-determinism is relative ordering of elements
with the same key:
http://lists.llvm.org/pipermail/llvm-dev/2017-October/118639.html
Feel free to reach out to me to discuss more on this :)
--Mandeep
On 11/21/2017 6:30 PM, Devin Coughlin via Phabricator via cfe-commits wrote:
dcoughlin added a comment.
For clang itself I think we also use a stage-2 clang to build the same version
of clang and make sure that it matches the stage-2 clang. This doesn't help for
the analyzer though.
Repository:
rL LLVM
https://reviews.llvm.org/D40073
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