Mailing Lists: Apple Mailing Lists
Image of Mac OS face in stamp
 
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: loop unrolling and AltiVec register utilization

At 4:15 PM -0400 10/29/04, Stan Jou wrote: 

gcc 3.3 re-ordered the instructions the way it wants.
Since it seems like a direct mapping from the AltiVec C to AltiVec assembly
for what I need to do, I plan to re-write the part in in-line assembly.

There should be no need for assembly here.
Either you need to unroll, or if it's a large data set you need cache hinting (try that after unrolling).


Chris
_______________________________________________
Do not post admin requests to the list. They will be ignored.
PerfOptimization-dev mailing list      (email@hidden)
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/perfoptimization-dev/email@hidden

This email sent to email@hidden
References: 
 >Re: loop unrolling and AltiVec register utilization (From: Stan Jou <email@hidden>)



Visit the Apple Store online or at retail locations.
1-800-MY-APPLE

Contact Apple | Terms of Use | Privacy Policy

Copyright © 2007 Apple Inc. All rights reserved.