[all-commits] [llvm/llvm-project] f43b22: PowerPC: Don't hoist float multiply + add to fused...
Justin Hibbits via All-commits
all-commits at lists.llvm.org
Wed Aug 10 08:05:09 PDT 2022
Author: Justin Hibbits <jrh29 at alumni.cwru.edu>
Date: 2022-08-10 (Wed, 10 Aug 2022)
PowerPC: Don't hoist float multiply + add to fused operation on SPE
SPE doesn't have a fmadd instruction, so don't bother hoisting a
multiply and add sequence to this, as it'd become just a library call.
Hoisting happens too late for the CTR usability test to veto using the
CTR in a loop, and results in an assert "Invalid PPC CTR loop!".
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