[Bug tree-optimization/23818] New: ICE in dominated_by_p, at dominance.c:827

[belyshev at depni dot sinp dot msu dot ru]

// testcase, compile with -O1 -fno-tree-dominator-opts :

void foo (int p[100], int k, ...)
{
  int j, *q;
  __builtin_va_list ap;
  __builtin_va_start (ap, k);
  q = __builtin_va_arg (ap, int *);
  for (j = 0; j < 100; j++)
    p [j] = q [j];
  __builtin_va_end(ap);
}

// compiler output:
capifunc.i: In function 'foo':
capifunc.i:2: internal compiler error: in dominated_by_p, at dominance.c:827

-- 
           Summary: ICE in dominated_by_p, at dominance.c:827
           Product: gcc
           Version: 4.1.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P2
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: belyshev at depni dot sinp dot msu dot ru
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23818