gcc/testsuite/gcc.dg/fold-stringops-3.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2" } */
   3
   4 typedef __SIZE_TYPE__ size_t;
   5
   6 char dst[1024];
   7
   8 void
   9 safe1 (size_t len)
  10 {
  11   len = len > sizeof (dst) ? sizeof (dst) : len;
  12   len = len < sizeof (dst) / 2 ? sizeof (dst) / 2 : len;
  13
  14   __builtin_snprintf (dst, len, "hello");
  15   __builtin_snprintf (dst + 5, len, "%s", " world");
  16 }
  17
  18 /* { dg-final { scan-assembler-not "snprintf" } } */