[Bug optimization/12845] [3.4 Regression] missed jump optimization

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-01-13 04:18 -------
Can you test again, I think this patch fixed it:
2004-01-12  Kazu Hirata  <kazu@cs.umass.edu>
        
        PR optimization/12508.
        * combine.c (try_combine): Remove a dead set in a parallel
        even if its destination is a subreg.
        
        Revert: 
        2003-06-03  Kazu Hirata  <kazu@cs.umass.edu>
        * combine.c (simplify_set): Don't move a subreg in SET_SRC to
        SET_DEST if WORD_REGISTER_OPERATIONS is not defined.

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           What    |Removed                     |Added
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           Keywords|                            |pessimizes-code


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12845