llvm dev - Jul 2018 - RFC: Shall we re-enable GVNHoist by default ?

Hello llvm-dev,


GVNHoist has been disabled for a while due to test breakages.

I have created a revision where I list the fixed bugs.

I am not sure if I am missing something fundamental that still needs addressing
before we flip the switch.

I couldn't dig out the discussion about exactly what we should do prior to
re-enabling it by default.

https://reviews.llvm.org/D49858


Regards,
Alexandros
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