[PATCH] D31919: NewGVN: Don't propagate over phi backedges where undef causes us to have >1 value.
Daniel Berlin via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Tue Apr 11 01:03:38 PDT 2017
dberlin updated this revision to Diff 94791.
dberlin added a comment.
- Add SCC finding to discover cycle-free phis
(I'm performance testing a bunch of versions of this patch)
https://reviews.llvm.org/D31919
Files:
lib/Transforms/Scalar/NewGVN.cpp
test/Transforms/NewGVN/basic-cyclic-opt.ll
test/Transforms/NewGVN/pr32607.ll
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