gcc/testsuite/gcc.dg/tree-ssa/stdarg-7.c

   1 /* PR target/64979 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O2 -fdump-tree-stdarg" } */
   4
   5 #include <stdarg.h>
   6
   7 void bar (int x, va_list *ap);
   8
   9 void
  10 foo (int x, ...)
  11 {
  12   va_list ap;
  13   int n;
  14
  15   va_start (ap, x);
  16   n = va_arg (ap, int);
  17   bar (x, (va_list *) ((n == 0) ? ((void *) 0) : &ap));
  18   va_end (ap);
  19 }
  20
  21 /* { dg-final { scan-tree-dump "foo: va_list escapes 1, needs to save all GPR units and all FPR units" "stdarg" } } */