[PATCH] D18827: Rework/enhance stack coloring data flow analysis.

Than McIntosh via llvm-commits llvm-commits at lists.llvm.org
Mon Apr 18 08:34:36 PDT 2016


thanm added a comment.

Hi all,
I did some additional testing of this patch over the weekend, and I've discovered (unfortunately) a couple of cases where my new algorithm is not doing as well as the old algorithm (in spite of the fact that the new scheme does fix the case that motivated me to file the bug in the first place). I am still working to understand what the issue is, but it looks as though the degradations are in cases where uses of a stack slot appear outside of regions strictly dominated/post-dominated by markers.
I will post another comment when I have more info.
Thanks, Than


http://reviews.llvm.org/D18827





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