[PATCH] D45330: [IPSCCP] Use PredicateInfo to propagate facts from cmp instructions.

[Florian Hahn via Phabricator via llvm-commits]

fhahn added a comment.

In https://reviews.llvm.org/D45330#1098349, @dberlin wrote:

> I think the numbers are good enough to be worth it perf wise.
>  Did you post compile time numbers?


Thanks for having a look!

I did not post them, but for the tests I run (test-suite, spec2000, spec2006) on AArch64, there were no compile time regressions. One change is that we now compute the dominator trees before IPSCCP. I suppose we should try and preserve them in IPSCCP. I'll try to put a patch together before I submit this change.


https://reviews.llvm.org/D45330