[llvm-commits] [PATCH] Add llvm.fmuladd intrinsic.

[Lang Hames]

>
> Agreed - Legal was a poor choice of terms. I don't know if we want to
> check TLI.isOperationLegal(...) though - an llvm.fma.* call (which is what
> we lower to) will always be legal...
>

Owen pointed out that I'm finding new and interesting ways to abuse the
term 'legal' here. To clarify: If isFMACheap returns true we should
legalize the llvm.fmuladd.* to an llvm.fma.* and leave it to the existing
legalization code to turn the llvm.fma.* into something sane for the target.

- Lang.
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