------- Comment #2 from ubizjak at gmail dot com  2009-09-17 09:50 -------
(In reply to comment #1)

> and in this case the "mov %rdx,%rax" could be "mov %edx,%eax" because of the
> dominating movzbl.

32bit moves and other instructions _SIGN_EXTEND_ results to 64bits on x86_64.


-- 

ubizjak at gmail dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |INVALID


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34653

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