return -EFAULT;
{
- register unsigned long r8 __asm ("r8") = 0;
+ register unsigned long r8 __asm ("r8");
unsigned long prev;
__asm__ __volatile__(
" mf;; \n"
- " mov ar.ccv=%3;; \n"
- "[1:] cmpxchg4.acq %0=[%1],%2,ar.ccv \n"
+ " mov %0=r0 \n"
+ " mov ar.ccv=%4;; \n"
+ "[1:] cmpxchg4.acq %1=[%2],%3,ar.ccv \n"
" .xdata4 \"__ex_table\", 1b-., 2f-. \n"
"[2:]"
- : "=r" (prev)
+ : "=r" (r8), "=r" (prev)
: "r" (uaddr), "r" (newval),
"rO" ((long) (unsigned) oldval)
: "memory");