1 /* { dg-do compile } */
2 /* { dg-options "-O3 -fno-tree-vectorize -fdump-tree-cunroll-details" } */
3 
4 int bits;
5 unsigned int size;
6 int max_code;
7 
8 void
test()9 test ()
10 {
11  int code = 0;
12 
13  while (code < max_code)
14    code |= ((unsigned int) (size >> (--bits)));
15 
16  while (bits < (unsigned int)25)
17    bits += 8;
18 }
19 
20 /* { dg-final { scan-tree-dump "Loop 2 iterates at most 3 times" "cunroll"} } */
21