3f85134d71
On Powerpc fma is faster than fadd + fmul for some types, (PPCTargetLowering::isFMAFasterThanFMulAndFAdd). we should implement target hook isProfitableToHoist to prevent simplifyCFGpass from breaking fma pattern by hoisting fmul to predecessor block. Reviewed By: nemanjai Differential Revision: https://reviews.llvm.org/D76207