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RE: -freduce-all-givs code slowdown
- From: Matt Luckett <wmluck02 at uofl dot edu>
- To: gcc at gcc dot gnu dot org
- Date: Sat, 11 Oct 2003 00:56:28 -0400
- Subject: RE: -freduce-all-givs code slowdown
-freduce-all-givs slows down most of the code in freebench 1.03.
www.freebench.org
Results without -freduce-all-givs
Score: 0.935339 times a Sun Ultra 10
Score: 1.685400 times a Sun Ultra 10
Score: 6.633980 times a Sun Ultra 10
Score: 3.211702 times a Sun Ultra 10
Score: 1.377262 times a Sun Ultra 10
Score: 2.055189 times a Sun Ultra 10
Score: 2.775163 times a Sun Ultra 10
Results with -freduce-all-givs
Score: 0.927564 times a Sun Ultra 10
Score: 1.559817 times a Sun Ultra 10
Score: 6.634531 times a Sun Ultra 10
Score: 3.204423 times a Sun Ultra 10
Score: 1.367992 times a Sun Ultra 10
Score: 2.054944 times a Sun Ultra 10
Score: 2.776413 times a Sun Ultra 10
Results with -fmove-all-movables (slightly faster)
Score: 0.938339 times a Sun Ultra 10
Score: 1.685068 times a Sun Ultra 10
Score: 6.634500 times a Sun Ultra 10
Score: 3.213488 times a Sun Ultra 10
Score: 1.382798 times a Sun Ultra 10
Score: 2.055562 times a Sun Ultra 10
Score: 2.775545 times a Sun Ultra 10
These results are from the benchmarks it runs in order...