gcc/testsuite/gcc.dg/tree-ssa/builtin-free.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-optimized" } */
   3
   4 void bar (void *);
   5 void foo(unsigned n)
   6 {
   7   void *p = __builtin_malloc (n);
   8   if (p)
   9     {
  10       bar (p);
  11       __builtin_free (p);
  12       p = 0;
  13     }
  14   __builtin_free (p);
  15 }
  16
  17 /* We should remove the redundant call to free.  */
  18
  19 /* { dg-final { scan-tree-dump-times "free" 1 "optimized" } } */