gcc/testsuite/c-c++-common/Wunused-var-6.c

   1 /* PR c/43981 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-Wunused" } */
   4 /* { dg-require-effective-target alloca } */
   5
   6 void g (char *);
   7
   8 char
   9 f (int a)
  10 {
  11   int len = a * 3;
  12   char t[len];
  13
  14   g (t);
  15   return t[0];
  16 }