[Bug tree-optimization/41026] invariant address load inside loop with -Os.

[rguenth at gcc dot gnu dot org]

------- Comment #3 from rguenth at gcc dot gnu dot org  2009-08-11 08:35 -------
Well, the issue is that even LIM doesn't move the load because loop header
copying is not run at -Os which usually makes loop analysis hard.
At -O2 -fno-tree-pre it works, but at -Os it doesn't.

We should be better in estimating the loop header copy cost.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41026