[PATCH] D35035: [InstCombine] Prevent memcpy generation for small data size

[Sjoerd Meijer via Phabricator via llvm-commits]

SjoerdMeijer added a comment.

I am doing some experiments with a hack that simply comments out the call to InstCombiner::SimplifyAnyMemTransfer. I've ran 3 smaller benchmarks. 2 didn't show any difference. The 3rd shows 1 tiny regression and 1 tiny improvement in a test case, and will probably not even show a difference in the geomean. I am doing this as a background task; tomorrow I will ran bigger benchmarks, on different platforms.  But I guess we need some numbers for non-Arm platforms too.


https://reviews.llvm.org/D35035