[PATCH] D32140: Global code motion of congruent computations

[Aditya Kumar via Phabricator via llvm-commits]

hiraditya added a comment.

In D32140#1725238 <https://reviews.llvm.org/D32140#1725238>, @xbolva00 wrote:

> GVNHoist was recently reverted maily due to big regressions:
>  http://lists.llvm.org/pipermail/llvm-commits/Week-of-Mon-20181001/591519.html


Thanks for the link, i'll see if we can tune this pass based on the benchmarks posted there. This optimization does have cost model that would reduce register pressure so it shouldn't be worse compared to the current GVNHoist.


Repository:
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  https://reviews.llvm.org/D32140/new/

https://reviews.llvm.org/D32140