1 /* { dg-do assemble } */ 2 /* { dg-options "-O2" } */ 3 4 /* Checking that the "b" constraint is accepted, for all target variants. */ 5 sys_ipc(void)6long sys_ipc (void) 7 { 8 long __gu_err = -14; 9 long dummy_for_get_user_asm_64_; 10 __asm__ __volatile__( "move.d [%1+],%0\n" 11 : "=r" (__gu_err), "=b" (dummy_for_get_user_asm_64_) 12 : "0" (__gu_err)); 13 14 return __gu_err; 15 } 16