[AArch64] Redundant AllOne/AllZero patterns?

Tim Northover t.p.northover at gmail.com
Thu Nov 14 10:42:39 PST 2013

> def Neon_AllZero : PatFrag<(ops), (Neon_movi (i32 0), (i32 14))>;
> def Neon_AllOne : PatFrag<(ops), (Neon_movi (i32 255), (i32 14))>;
> Are these redundant?  If so, which should we prefer?

They look it. Personally, I prefer these newer ones, though some
comment on these special numbers might be in order.



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