[llvm-commits] patch: x86 vector udiv

[Duncan Sands]

Hi Peter,

> Please review this patch for pr8429 to turn vector udiv into vector shrl instructions when dividing by powers of 2.  This was already done on scalars but not on vectors.

shouldn't the IR level optimizers be doing this?

Ciao, Duncan.

>
> I also found that vector shifts were always scalarised on x86 even with SSE on so i turned these into the equivalent intrinsics.
>
> Thanks,
> Pete
>
>
>
> _______________________________________________
> llvm-commits mailing list
> llvm-commits at cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits