[PATCH] D28637: [PPC] Inline expansion of memcmp
Zaara Syeda via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Thu Mar 9 08:25:55 PST 2017
syzaara added inline comments.
================
Comment at: lib/CodeGen/CodeGenPrepare.cpp:2233
+ Builder.Insert(NewBr);
+ return;
+ }
----------------
efriedma wrote:
> Hmm... in isOnlyUsedInZeroEqualityComparison mode, it probably makes sense to perform more loads per block, to reduce the number of branches.
I'm not sure what you mean here. We have the branches for doing an early exit so we don't need to continue loading more bytes when we find a difference.
https://reviews.llvm.org/D28637
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