gcc/testsuite/gcc.dg/fold-alloca-1.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-fdump-tree-cfg" } */
   3 /* { dg-require-effective-target alloca } */
   4
   5 void *alloca (__SIZE_TYPE__);
   6 void link_error ();
   7
   8 int main (int argc, char *argv[]) {
   9         char *foo;
  10         if ((foo = alloca(argc)) == 0)
  11           link_error ();
  12         return 0;
  13 }
  14 /* { dg-final { scan-tree-dump-times "link_error" 0 "cfg" } } */