gcc/testsuite/gcc.dg/tree-ssa/ifc-7.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-c -O2 -ftree-vectorize" { target *-*-* } } */
   3
   4 typedef struct eqn_d
   5 {
   6   int *coef;
   7 } *eqn;
   8 typedef struct omega_pb_d
   9 {
  10   eqn subs;
  11 } *omega_pb;
  12
  13 omega_pb omega_solve_problem (omega_pb);
  14
  15 omega_pb
  16 omega_solve_geq (omega_pb pb, int n)
  17 {
  18   int i, e;
  19   int j = 0;
  20
  21   for (e = n - 1; e >= 0; e--)
  22     if (pb->subs[e].coef[i] != pb->subs[e].coef[j])
  23       {
  24         pb->subs[e].coef[i] = j;
  25         pb->subs[e].coef[j] = i;
  26       }
  27
  28   return omega_solve_problem (pb);
  29 }