ASM_BUG_FLAGS
#define ASM_BUG() ASM_BUG_FLAGS(0)
asm volatile (__stringify(ASM_BUG_FLAGS(flags)));
#define ASM_BUG() ASM_BUG_FLAGS("", 0)
asm_inline volatile (__stringify(ASM_BUG_FLAGS(cond_str, flags)) extra);