[Bug middle-end/20671] Poor bit-field code generation

pinskia at gcc dot gnu dot org gcc-bugzilla@gcc.gnu.org
Mon Mar 28 22:52:00 GMT 2005

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-03-28 22:52 -------
Don't worry about it, I can reproduce it on PPC:
        lwz r0,0(r12)
        rlwinm r3,r0,0,1,31
        mr r4,r3
        stw r3,0(r12)
        rlwimi r4,r0,0,1,1
        mr r5,r4
        stw r4,0(r12)

Trying to find an equivalent C testcase. Though it is hard.

           What    |Removed                     |Added
OtherBugsDependingO|                            |19466
              nThis|                            |
             Status|UNCONFIRMED                 |NEW
          Component|ada                         |middle-end
     Ever Confirmed|                            |1
           Keywords|                            |missed-optimization
   Last reconfirmed|0000-00-00 00:00:00         |2005-03-28 22:52:30
               date|                            |


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