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

[rguenth at gcc dot gnu dot org]

------- Comment #4 from rguenth at gcc dot gnu dot org  2008-09-01 14:36 -------
Well, now -Os -funroll-all-loops doesn't do any unrolling anymore while it did
before.  With -O2 you get what you ask for - unrolled loops.

-funroll-all-loops isn't really a flag to be used in general.


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