On 23/01/17 23:35, Andrew Pinski wrote: > Hi, > On ThunderX 2, the logical shifts that are part of the address cause > a 1 cycle extra and this is not modeled correctly. For induction > variables we don't want to do the shift. When I change the cost for > the shift of the addresses, I get a 12% improvement on HMMER; all over > benchmarks in SPEC CPU 2006 were neutral. > > OK? Bootstrapped and tested on aarch64-linux-gnu with no regressions. > > Thanks, > Andrew Pinski > > ChangeLog: > * config/aarch64/aarch64.c (thunderx2t99_addrcost_table): Improve cost table. >
OK. R.
