1 /* PR rtl-optimization/84872 */
2 /* { dg-do compile { target pthread } } */
3 /* { dg-options "-O1 -floop-parallelize-all -freorder-blocks-and-partition -fschedule-insns2 -fselective-scheduling2 -fsel-sched-pipelining -fno-tree-dce" } */
4 
5 void
foo(int x)6 foo (int x)
7 {
8   int a[2];
9   int b, c = 0;
10 
11   for (b = 0; b < 2; ++b)
12     a[b] = 0;
13   for (b = 0; b < 2; ++b)
14     a[b] = 0;
15 
16   while (c < 1)
17     while (x < 1)
18       ++x;
19 }
20