Hi Bill,
On Mon, Sep 30, 2019 at 08:24:09PM -0500, Bill Schmidt wrote:
> PR91275 observes that __builtin_crypto_vpmsumd fails to work properly
> with -O1 or higher with -mcpu=power8. That combination spells swap
> optimization. Indeed, all vpmsum* instructions were being accepted
> as swappable
Hi,
PR91275 observes that __builtin_crypto_vpmsumd fails to work properly
with -O1 or higher with -mcpu=power8. That combination spells swap
optimization. Indeed, all vpmsum* instructions were being accepted
as swappable operations. This is correct for all of them but vpmsumd,
which creates a