gcc/testsuite/gcc.target/i386/pr65217.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O" } */
   3 /* { dg-final { scan-assembler-not "negl" } } */
   4 /* { dg-final { scan-assembler-not "andl" } } */
   5
   6 int
   7 test(int n)
   8 {
   9   if ((n & -n) != n)
  10     __builtin_unreachable();
  11   return n;
  12 }