On 09/01/12 12:01, Matthew Gretton-Dann wrote: > The attached patch tunes the costs of conditional execution and branches > for Cortex-A15 to be the same as that for Cortex-A5. > > This gives an average improvement of over 6% on a popular embedded > benchmark. > > Note that the tuning parameter structure added for Cortex-A15 is only tuned > for branch costs, and otherwise takes the generic values. Tuning for other > optimisations (notably preload insertion) is still to be done. > > Thanks, > > Matt > > gcc/ChangeLog: > > 2012-01-06 Matthew Gretton-Dann <matthew.gretton-d...@arm.com> > > * config/arm/arm-cores.def (cortex-a15): Use cortex_a15_tune for > tuning parameters. > * config/arm/arm.c (arm_cortex_a15_tune): New static variable. > >
Technically this is too late for 4.7, but the risk is very low and Cortex-A15 tuning is new. So OK, but please check in ASAP. R.
