1 /* { dg-options "-O2 -fdump-tree-tailc -fdump-tree-optimized" } */
2 __attribute__ ((noinline))
factorial(int x)3 int factorial(int x)
4 {
5    if (x == 1)
6      return 1;
7    else
8      return x*factorial(--x);
9 }
10 int gbl;
11 int
main()12 main()
13 {
14    gbl = factorial(100);
15    return 0;
16 }
17 /* { dg-final-use { scan-tree-dump-not "Invalid sum" "tailc"} } */
18 /* { dg-final-use { scan-tree-dump-not "Invalid sum" "optimized"} } */
19 /* { dg-final-use { cleanup-tree-dump "tailc" } } */
20 /* { dg-final-use { cleanup-tree-dump "optimized" } } */
21