[Bug tree-optimization/37312] -Os significantly faster than -O2 on test case wiht -funroll-all-loops

[pinskia at gcc dot gnu dot org]

------- Comment #6 from pinskia at gcc dot gnu dot org  2008-09-02 20:45 -------
The main difference between -O2 and -Os is that csum_partial is inlined for -Os
and unrolling is disabled for -Os.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37312