On 29 April 2016 at 11:50, Charles Mills <[email protected]> wrote: > What about substituting a branch relative for the branch on base register? > Trivial code change to make.
I was about to suggest that too. All the IBM published material I've seen on this suggests that -- all else being equal (heh), untaken branches are faster than taken ones (even if the prediction is correct), and -- the penalty for misprediction is lower for relative branches than register-based ones. Tony H. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
