1 /* The return argument needs a type conversion which on some targets
2    (e.g. s390) needs additional code.  So it is invalid to do tail
3    call optimization here.  */
4 
5 /* { dg-do compile } */
6 /* { dg-options "-O2" } */
7 
8 extern void abort (void);
9 
10 long long __attribute__((noinline))
foo()11 foo ()
12 {
13   return 3;
14 }
15 
16 int __attribute__((noinline))
boo()17 boo ()
18 {
19   return foo ();
20 }
21 
22 int
main()23 main ()
24 {
25   if (boo () != 3)
26     abort ();
27 }
28 
29