Re: [PATCH V4, rs6000] Disable generation of scalar modulo instructions

[Pat Haugen]

On 9/13/23 3:48 PM, Segher Boessenkool wrote:

-  "TARGET_POWER10 && TARGET_POWERPC64"
+  "TARGET_POWER10 && TARGET_POWERPC64 && !RS6000_DISABLE_SCALAR_MODULO"
    "vmoduq %0,%1,%2"

Did we ever test if this insn in fact is slower as well?  I don't mean
either way, orthogonality is good, but just for my enlightenment.

Yes, I tested quadword too and saw the same result, div/mul/sub is the 
better option.


With improved changelog: okay for trunk.  Okay for all backports as
well (after some soak time).

Thanks, updated changelog and committed to trunk. Will backport after 
burn-in.

-Pat