------- Comment #2 from rguenth at gcc dot gnu dot org 2010-08-10 08:57 ------- The some reason is that loop header copying is not performed at -Os.
-- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45243
[Bug tree-optimization/45243] Non-volatile variables don't need to be constantly modified at -Os
rguenth at gcc dot gnu dot org Tue, 10 Aug 2010 01:58:11 -0700
- [Bug c++/45243] New: Non-volatil... msharov at users dot sourceforge dot net
- [Bug tree-optimization/45243... pinskia at gcc dot gnu dot org
- [Bug tree-optimization/45243... rguenth at gcc dot gnu dot org
