[PATCH] D92745: [LoopIdiomRecognize] Teach detectShiftUntilZeroIdiom to recognize loops where the counter is decrementing.
Roman Lebedev via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Wed Dec 9 02:54:28 PST 2020
lebedev.ri added a comment.
I.e. my comment is - given that nowadays `-indvars` will run right afterwards,
should we really care about trying to do it's job.
Should we not *just* transform the loop into countable,
and let it deal with cleaning the old IV's?
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https://reviews.llvm.org/D92745/new/
https://reviews.llvm.org/D92745
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