1 /* PR target/96176 */
2 /* { dg-do compile { target lp64 } } */
3 /* { dg-options "-O2" } */
4 /* { dg-final { scan-assembler-not "\tmovzbl\t" } } */
5 
6 unsigned char v;
7 
8 void
foo(unsigned char * x,unsigned char y,unsigned char z)9 foo (unsigned char *x, unsigned char y, unsigned char z)
10 {
11   __atomic_compare_exchange_n (x, &y, z, 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
12   v = y;
13 }
14