[Bug c/37924] [4.2/4.3/4.4 Regression] ice in smallest_mode_for_size, at stor-layout.c:219

pinskia at gcc dot gnu dot org gcc-bugzilla@gcc.gnu.org
Mon Oct 27 18:55:00 GMT 2008



------- Comment #4 from pinskia at gcc dot gnu dot org  2008-10-27 18:54 -------
As an asside, I wonder why we don't optimize:
  D.1576_3 = (int) a.0_2;
  D.1577_4 = ~D.1576_3;
  D.1578_5 = (unsigned int) D.1577_4;

Into just:
D_1 = ~a.0_2;
D_2 = (unsigned int)D_1;

Like it is done for the case were we manually replace b with -1.  Maybe this is
a tree combiner issue again ...


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37924



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