[PATCH] D109953: [X86] Combine the FADD(A, FMA(B, C, 0)) to FMA(B, C, A)

[Dávid Bolvanský via Phabricator via llvm-commits]

xbolva00 added inline comments.


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Comment at: llvm/lib/Target/X86/X86ISelLowering.cpp:47481
 
 //  Try to combine the following nodes
 //  t21: v16f32 = X86ISD::VFMULC/VFCMULC t7, t8
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Do we really need this output here? Simplify it a bit? Something like you wrote "Combine the FADD(A, FMA(B, C, 0)) to FMA(B, C, A)"?


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  https://reviews.llvm.org/D109953/new/

https://reviews.llvm.org/D109953