gcc/testsuite/gcc.dg/Walloca-15.c

   1 /* { dg-do compile } */
   2 /* { dg-require-effective-target alloca } */
   3 /* { dg-options "-Walloca-larger-than=128 -O2" } */
   4
   5 typedef __SIZE_TYPE__ size_t;
   6
   7 void bar (void*);
   8
   9 void foo1 (size_t len)
  10 {
  11   bar (__builtin_alloca_with_align_and_max (len, 8, 128));
  12 }
  13
  14 void foo2 (size_t len)
  15 {
  16   bar (__builtin_alloca_with_align_and_max (len, 8, 256)); /* { dg-warning "may be too large" } */
  17 }