[Bug tree-optimization/18031] OR of a bitfield and a constant is not optimized at tree level

[rguenth at gcc dot gnu dot org]

------- Comment #9 from rguenth at gcc dot gnu dot org  2006-10-24 13:07 -------
We should at least fold

  b->bit = (<unnamed type>) (unsigned char) ((signed char) b->bit | 1);

to

  b->bit = (<unnamed type>) ((signed char) b->bit | 1);


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18031