1 /* { dg-do run } */
2 /* { dg-require-effective-target split_stack } */
3 /* { dg-options "-fsplit-stack" } */
4
5 /* This test is like split-3.c, but tests with a smaller stack frame,
6 since that uses a different prologue. */
7
8 #include <stdarg.h>
9 #include <stdlib.h>
10
11 /* Use a noinline function to ensure that the buffer is not removed
12 from the stack. */
13 static void use_buffer (char *buf) __attribute__ ((noinline));
14 static void
use_buffer(char * buf)15 use_buffer (char *buf)
16 {
17 buf[0] = '\0';
18 }
19
20 /* When using gold, the call to abort will force a stack split. */
21
22 static void
down(int i,...)23 down (int i, ...)
24 {
25 char buf[1];
26 va_list ap;
27
28 va_start (ap, i);
29 if (va_arg (ap, int) != 1
30 || va_arg (ap, int) != 2
31 || va_arg (ap, int) != 3
32 || va_arg (ap, int) != 4
33 || va_arg (ap, int) != 5
34 || va_arg (ap, int) != 6
35 || va_arg (ap, int) != 7
36 || va_arg (ap, int) != 8
37 || va_arg (ap, int) != 9
38 || va_arg (ap, int) != 10)
39 abort ();
40
41 if (i > 0)
42 {
43 use_buffer (buf);
44 down (i - 1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10);
45 }
46 }
47
48 int
main(void)49 main (void)
50 {
51 down (1000, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10);
52 return 0;
53 }
54