[Bug middle-end/36154] [4.3 Regression] internal compiler error: in get_constraint_for_component_ref, at tree-ssa-structalias.c:2727

[rguenth at gcc dot gnu dot org]

------- Comment #3 from rguenth at gcc dot gnu dot org  2008-05-07 20:04 -------
Reduced testcase, fails at -O:

struct eth_test_pkt {
  unsigned short len;
  unsigned short ctr;
  unsigned char packet[];
} __attribute__ ((packed));
struct eth_test_pkt pkt_unaligned = { .packet = { 0xFC } };
int cmd_unaligned(const void *p)
{
  return memcmp(p, pkt_unaligned.packet, 1);
}


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
  GCC build triplet|x86_64-unknown-linux-gnu    |
   GCC host triplet|x86_64-unknown-linux-gnu    |
 GCC target triplet|powerpc-eabispe             |
           Keywords|                            |ice-on-valid-code
      Known to fail|                            |4.3.0
      Known to work|                            |4.2.3 4.4.0
   Last reconfirmed|0000-00-00 00:00:00         |2008-05-07 20:04:30
               date|                            |
            Summary|internal compiler error: in |[4.3 Regression] internal
                   |get_constraint_for_component|compiler error: in
                   |_ref, at tree-ssa-          |get_constraint_for_component
                   |structalias.c:2727          |_ref, at tree-ssa-
                   |                            |structalias.c:2727
   Target Milestone|---                         |4.3.1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36154