[PATCH] D40696: Enable aggressive FMA on T99 and provide AArch64 option for other micro-arch's

Florian Hahn via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Mon Dec 4 08:35:13 PST 2017


fhahn added a comment.

On a related note, the MachineCombiner ignores `enableAggressiveFMAFusion`, so at `-O3`, the example won't be combined. I plan to put up a patch soon that updates the machine combiner to consider combining multiple uses, if profitable.


Repository:
  rL LLVM

https://reviews.llvm.org/D40696





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