------- Comment #17 from pinskia at gcc dot gnu dot org  2006-09-18 01:45 
-------
(In reply to comment #13)
> Notice in the tektester.386.s testcase, you have an xor instruction on ebx,
> when all what's needed to clear out al/ax/eax is a
> mov  $0, al/ax/eax
xor is both faster and has a smaller encoding than mov does.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23605

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