gcc/testsuite/gcc.dg/20050105-2.c

   1 /* PR tree-optimization/18828 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O2" } */
   4
   5 #include <stdarg.h>
   6
   7 extern void abort (void);
   8
   9 void foo (int x, ...)
  10 {
  11   va_list ap;
  12   if (x != 21)
  13     abort ();
  14   va_start (ap, x);
  15   va_end (ap);
  16 }
  17
  18 void bar (int x, ...)
  19 {
  20   va_list ap;
  21   x++;
  22   va_start (ap, x);
  23   va_end (ap);
  24 }
  25
  26 void baz (int x, ...)
  27 {
  28   va_list ap;
  29   x = 0;
  30   va_start (ap, x);
  31   va_end (ap);
  32 }