[Bug rtl-optimization/49088] Combine fails to properly handle zero-extension and signed int constant

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49088

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
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  Attachment #24314|0                           |1
        is obsolete|                            |

--- Comment #8 from H.J. Lu <hjl.tools at gmail dot com> 2011-05-21 04:28:51 
UTC ---
Created attachment 24315
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=24315
An updated patch