[Bug target/38306] [4.4/4.5 Regression] 15% slowdown w.r.t. 4.3 of computational kernel on some architectures

[jv244 at cam dot ac dot uk]

------- Comment #17 from jv244 at cam dot ac dot uk  2009-09-01 09:17 -------
(In reply to comment #16)
> All numbers with trunk:
with 4.3 there is no difference between -O2 and -O3

-O2 -march=native -funroll-loops  -ffast-math: 4.388
-O2 -march=native -funroll-loops  -ffast-math -fschedule-insns: 3.352
-O3 -march=native -funroll-loops  -ffast-math: 4.380
-O3 -march=native -funroll-loops  -ffast-math -fschedule-insns: 3.372


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38306