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[Bug rtl-optimization/17935] Two consecutive movzbl are generated



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Bug 17935 depends on bug 21520, which changed state.

Bug 21520 Summary: missing PRE opportunity with operand after operand
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21520

           What    |Old Value                   |New Value
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17935


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