1 /* PR tree-optimization/42719 */
2 /* { dg-do compile } */
3 /* { dg-options "-O2 -ftracer -fcompare-debug" } */
4 /* { dg-xfail-if "" { powerpc-ibm-aix* } { "*" } { "" } } */
5 
6 int *v;
7 
8 void
foo(int a)9 foo (int a)
10 {
11   int i, j;
12   for (j = i = a; i != -1; j = i, i = v[i])
13     ;
14   v[j] = v[a];
15 }
16