gcc/testsuite/gcc.dg/tree-ssa/calloc-2.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-optimized" } */
   3
   4 int n, nn;
   5 void* f()
   6 {
   7   char *p = __builtin_calloc (n, 1);
   8   p[42] = '\n';
   9   __builtin_memset (p, 0, nn);
  10   return p;
  11 }
  12
  13 void* g(int m1, int m2)
  14 {
  15   char *p = __builtin_malloc (m2);
  16   while (--m1)
  17   {
  18     __builtin_memset (p, 0, m2);
  19     p[n] = 'b';
  20   }
  21   return p;
  22 }
  23
  24 /* { dg-final { scan-tree-dump-times "malloc" 1 "optimized" } } */
  25 /* { dg-final { scan-tree-dump-times "calloc" 1 "optimized" } } */
  26 /* { dg-final { scan-tree-dump-times "memset" 2 "optimized" } } */