[PATCH] D106408: Allow rematerialization of virtual reg uses

[Florian Hahn via Phabricator via llvm-commits]

fhahn added a comment.

In D106408#3056901 <https://reviews.llvm.org/D106408#3056901>, @vporpo wrote:

> Just to add that this patch caused a huge compilation time increase in some workloads, with the majority of time spent in `eliminateDeadDefs()` called by `rematerializeAll()`. The compilation time regression was gone after this patch was reverted.

Would it be possible to share a reproducer for the issue? Without a reprocducer, it will be hard to track down the compile-time issue.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D106408/new/

https://reviews.llvm.org/D106408