gcc/testsuite/gcc.dg/tree-ssa/pr19831-3.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fno-ipa-icf -fdump-tree-optimized" } */
   3
   4 void test2(void)
   5 {
   6   int *p = __builtin_malloc (sizeof (int) * 4);
   7   if (p == (void *)0)
   8     __builtin_abort ();
   9   __builtin_free (p);
  10 }
  11
  12 void test5(int b)
  13 {
  14   int *p = __builtin_malloc (sizeof (int) * 4);
  15   if (p)
  16     __builtin_free (p);
  17 }
  18
  19 void test6(void)
  20 {
  21   int *p = __builtin_malloc (sizeof (int) * 4);
  22   if (p == (void *)0)
  23     __builtin_abort ();
  24   if (p)
  25     __builtin_free (p);
  26 }
  27
  28 /* We should be able to remove all malloc/free pairs with CDDCE.
  29    Assume p was non-NULL for test2.
  30    For test5, it doesn't matter if p is NULL or non-NULL.  */
  31
  32 /* { dg-final { scan-tree-dump-times "free" 0 "optimized" { xfail *-*-* } } } */
  33 /* { dg-final { scan-tree-dump-times "malloc" 0 "optimized" { xfail *-*-* } } } */
  34
  35 /* But make sure we don't partially optimize for now.  */
  36
  37 /* { dg-final { scan-tree-dump-times "free" 3 "optimized" } } */
  38 /* { dg-final { scan-tree-dump-times "malloc" 3 "optimized" } } */