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Re: Simple Value Range Propagation



On Tuesday, June 10, 2003, at 01:49 PM, Zdenek Dvorak wrote:


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?

I have a like machine, let me see what i can do. I'll try to do this wednesday and thursday.


Zdenek


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