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Re: Speed Impact experiment on GCJ
- From: Andrew Pinski <pinskia at physics dot uc dot edu>
- To: pinskia at physics dot uc dot edu (Andrew Pinski)
- Cc: tromey at redhat dot com, aph at redhat dot com (Andrew Haley), thomas at tada dot se (Thomas Hallgren), Rui dot Wang at newcastle dot ac dot uk (Rui Wang), java at gcc dot gnu dot org
- Date: Wed, 15 Feb 2006 14:11:06 -0500 (EST)
- Subject: Re: Speed Impact experiment on GCJ
>
> >
> > >>>>> "Andrew" == Andrew Haley <aph@redhat.com> writes:
> >
> > Andrew> For what it's worth, I was quite suprised that gcj didn't spot the
> > Andrew> same opportunity. Maybe this is part of the value range propagation
> > Andrew> optimizations that aren't yet in core gcc.
> >
> > Yeah, I'm surprised too.
> > Maybe file it in bugzilla for later testing?
>
> Huh? It does produce good code on the mainline
One more data point, ppc-darwin mainline:
__ZN4Impl4pingEJiii:
LFB3:
mullw. r5,r5,r4
li r3,0
ble- cr0,L6
L4:
mr r3,r5
L6:
blr
Thanks,
Andrew Pinski