gcc/testsuite/gcc.dg/tree-ssa/builtin-snprintf-1.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fprintf-return-value -fdump-tree-optimized" } */
   3 /* { dg-final { scan-tree-dump-not "__builtin_snprintf" "optimized"} } */
   4
   5 int
   6 foo (void)
   7 {
   8   int a = __builtin_snprintf (0, 0, "%s", "abcdefgh");
   9   return a;
  10 }
  11
  12 void
  13 bar (void)
  14 {
  15   __builtin_snprintf (0, 0, "%s", "abcdefgh");
  16 }