On 2/27/24 15:56, 钟居哲 wrote:
>> I don't think it's that simple. On some uarchs vsetvls are nearly free
while on others they can be fairly expensive. It's not clear (to me)
yet if one approach or the other is going to be the more common.
That's uarch dependent which is not the stuff I am talking about.
What's I want to say is that this patch breaks those testcases I added
for VSETVL PASS testing.
And those testcases are uarch independent.
No, uarch impacts things like latency, which in turn impacts scheduling,
which in turn impacts vsetvl generation/optimization.
jeff
