On Fri, Apr 4, 2014 at 1:35 PM, Kyrill Tkachov <kyrylo.tkac...@arm.com> wrote: > Hi all, > > In PR 60743 it is noted that the genautomata computation has increased a lot > in both size and time due to my recently added a53 scheduling additions. > This patch attempts to mitigate that by reducing the large reservation > duration of the dividers that is causing a state-space explosion in the > automaton. > Without this patch I've observed a memory usage of around 750MB on my host > machine while running genautomata. With this patch, it is about 410MB and > much faster. > > Bernd, can you try this out and see if the genautomata behaviour is > acceptable on your system now? > > Bootstrapped and tested on aarch64-linux-gnu and arm-none-linux-gnueabihf. > Looked at various testcases involving the dividers to make sure that codegen > is not affected. > > Ok for trunk?
This is ok. Thanks for fixing this so promptly. Ramana > Thanks, > Kyrill > > 2014-04-04 Kyrylo Tkachov <kyrylo.tkac...@arm.com> > > PR bootstrap/60743 > * config/arm/cortex-a53.md (cortex_a53_fdivs): Reduce reservation > duration. > (cortex_a53_fdivd): Likewise.
