gcc/testsuite/gcc.dg/tree-ssa/alias-23.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-optimized" } */
   3
   4 typedef struct A { int i; double d; } A;
   5
   6 void f1 (const char *c)
   7 {
   8   A *s = (A*) __builtin_malloc (sizeof (A));
   9   double *p = &s->d;
  10   s->i = 42;
  11   __builtin_memcpy (p, c, sizeof (double));
  12   int j = s->i;
  13   if (j != 42) __builtin_abort();
  14 }
  15
  16 /* { dg-final { scan-tree-dump-not "abort" "optimized" } } */
  17