[PATCH] D71145: [InstCombine] Allow to limit the max number of iterations

Craig Topper via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Wed Dec 11 08:03:25 PST 2019


craig.topper added a comment.

In my experience extra iterations are often caused by bad worklist management when updating nodes sometimes. For example https://reviews.llvm.org/D50990 was supposed to fix one case of that, but I never got around to finding the original test where I observed the issue. If that patch still applies does it have any effect on any of the extra iterations in the table?


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D71145/new/

https://reviews.llvm.org/D71145





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