gcc/testsuite/gcc.dg/pr80100.c

/* PR middle-end/80100 */
/* { dg-do compile } */
/* { dg-options "-O2" } */

long int
foo (long int x)
{
  return 2L | ((x - 1L) >> (__SIZEOF_LONG__ * __CHAR_BIT__ - 1));
}