modernc.org/ccgo/v3@v3.16.14/lib/testdata/gcc-9.1.0/gcc/testsuite/gcc.c-torture/compile/bcopy-1.c (about)

     1  /* PR middle-end/31095, expand_builtin_memmove_args forgot to take into
     2     account that tree folding of builtins can add an extra NOP_EXPR.   */
     3  
     4  struct timeval
     5  {
     6    int tv_sec;
     7    int tv_usec;
     8  };
     9  void
    10  capture_next_packet (void)
    11  {
    12    struct timeval past, now, then;
    13    __builtin_bcopy (&then, &past, sizeof (then));
    14  }