gcc/testsuite/gcc.dg/Walloca-12.c

   1 /* { dg-do compile } */
   2 /* { dg-require-effective-target alloca } */
   3 /* { dg-options "-Walloca-larger-than=128 -O2" } */
   4
   5 void f (void*);
   6
   7 void g (unsigned int n)
   8 {
   9   if (n == 7)
  10     n = 11;
  11   f (__builtin_alloca (n)); /* { dg-warning "may be too large" } */
  12 }