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[ARM] Sink splats to fma intrinsics

Authored by dmgreen on Apr 17 2020, 10:29 AM.



Similar to fmul/fadd, we can sink a splat into a loop containing a fma in order to use more register instruction variants. For that I had to adjust the sinking code a little to handle more than 2 arguments.

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dmgreen created this revision.Apr 17 2020, 10:29 AM
This revision is now accepted and ready to land.Apr 20 2020, 2:20 AM
dmgreen updated this revision to Diff 260563.Tue, Apr 28, 1:24 AM

I've updated this to not include FMS patterns, same as for fmul. There is also a extra move int one of these new tests I've added, which should hopefully be removed once we convert the type of a vdup in cgp.

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This revision was automatically updated to reflect the committed changes.