Re: Simple Value Range Propagation

[Zdenek Dvorak <rakdver at atrey dot karlin dot mff dot cuni dot cz>]

Hello,

> > Josef, could you please try whether there is some change in compile-time
> > performance if you include either my fibheap speedup patch
> > http://gcc.gnu.org/ml/gcc-patches/2003-06/msg00698.html or use the
> > simple heaps from
> > http://gcc.gnu.org/ml/gcc-patches/2003-04/msg01569.html?
> 
>                           insn-attrtab.c   combine.c
> total time (-O2)          ~ 20 s           ~ 5.5 s
> VRP + current fibheap     0.30 s           0.09 s
> VRP + speedup fibheap     0.27 s           0.07 s
> VRP + normal heap         0.23 s           0.06 s

OK, seems that there is still some space for speedup in fibheap, if we
want to have them at least comparable with ordinary heaps.  Daniel, any
idea?

Zdenek