gcc/testsuite/gcc.dg/tree-ssa/calloc-1.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-optimized" } */
   3
   4 extern int a;
   5 extern int *b;
   6 int n;
   7 void* f(long *q)
   8 {
   9   int *p = __builtin_malloc (n);
  10   ++*q;
  11   if (p)
  12   {
  13     ++*q;
  14     a = 2;
  15     __builtin_memset (p, 0, n);
  16     *b = 3;
  17   }
  18   return p;
  19 }
  20 void* g(void)
  21 {
  22   float *p = __builtin_calloc (8, 4);
  23   return __builtin_memset (p, 0, 24); // not 32
  24 }
  25
  26 /* { dg-final { scan-tree-dump-times "calloc" 2 "optimized" } } */
  27 /* { dg-final { scan-tree-dump-not "malloc" "optimized" } } */
  28 /* { dg-final { scan-tree-dump-not "memset" "optimized" } } */