[PATCH] D24045: Tail Duplication: Don't denormalize loops when duplicating early.
Kyle Butt via llvm-commits
llvm-commits at lists.llvm.org
Tue Aug 30 10:59:24 PDT 2016
iteratee created this revision.
iteratee added a reviewer: davidxl.
iteratee added subscribers: llvm-commits, echristo, timshen.
iteratee set the repository for this revision to rL LLVM.
Herald added a subscriber: jfb.
Duplicating loop latches, headers, or pre-headers prevents certain loop based
optimizations. Now that we have tail-duplication during placement, it makes
sense to wait to duplicate these blocks until later, to allow other
optimizations to proceed.
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