1 /* Test case to check if Multiversioning works.  */
2 /* { dg-do run } */
3 /* { dg-require-ifunc "" }  */
4 /* { dg-options "-O2 -fPIC -march=x86-64" } */
5 
6 #include <assert.h>
7 
8 /* Default version.  */
9 int foo (); // Extra declaration that is merged with the second one.
10 int foo () __attribute__ ((target("default")));
11 
12 int foo () __attribute__ ((target("arch=corei7")));
13 
14 int (*p)() = &foo;
main()15 int main ()
16 {
17   int val = foo ();
18   assert (val ==  (*p)());
19 
20   /* Check in the exact same order in which the dispatching
21      is expected to happen.  */
22   if (__builtin_cpu_is ("corei7"))
23     assert (val == 5);
24   else
25     assert (val == 0);
26 
27   return 0;
28 }
29 
30 int __attribute__ ((target("default")))
foo()31 foo ()
32 {
33   return 0;
34 }
35 
36 int __attribute__ ((target("arch=corei7")))
foo()37 foo ()
38 {
39   return 5;
40 }
41