[Bug target/41081] redundant ZERO_EXTENDs

[amodra at bigpond dot net dot au]

------- Comment #4 from amodra at bigpond dot net dot au  2009-08-16 03:07 -------
Please ignore the RS6000_ALT_REG_ALLOC_ORDER hunk in rs6000-2.diff.  I forgot
to edit that out..


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41081