+#if (defined (__x86_64__) || defined (__i386__)) && W_TYPE_SIZE == 64
+#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
+ __asm__ ("add{q} {%5,%1|%1,%5}\n\tadc{q} {%3,%0|%0,%3}" \
+ : "=r" ((UDItype) (sh)), \
+ "=&r" ((UDItype) (sl)) \
+ : "%0" ((UDItype) (ah)), \
+ "rme" ((UDItype) (bh)), \
+ "%1" ((UDItype) (al)), \
+ "rme" ((UDItype) (bl)))
+#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
+ __asm__ ("sub{q} {%5,%1|%1,%5}\n\tsbb{q} {%3,%0|%0,%3}" \
+ : "=r" ((UDItype) (sh)), \
+ "=&r" ((UDItype) (sl)) \
+ : "0" ((UDItype) (ah)), \
+ "rme" ((UDItype) (bh)), \
+ "1" ((UDItype) (al)), \
+ "rme" ((UDItype) (bl)))
+#define umul_ppmm(w1, w0, u, v) \
+ __asm__ ("mul{q} %3" \
+ : "=a" ((UDItype) (w0)), \
+ "=d" ((UDItype) (w1)) \
+ : "%0" ((UDItype) (u)), \
+ "rm" ((UDItype) (v)))
+#define udiv_qrnnd(q, r, n1, n0, dv) \
+ __asm__ ("div{q} %4" \
+ : "=a" ((UDItype) (q)), \
+ "=d" ((UDItype) (r)) \
+ : "0" ((UDItype) (n0)), \
+ "1" ((UDItype) (n1)), \
+ "rm" ((UDItype) (dv)))
+#define count_leading_zeros(count, x) ((count) = __builtin_clzl (x))
+#define count_trailing_zeros(count, x) ((count) = __builtin_ctzl (x))
+#define UMUL_TIME 40
+#define UDIV_TIME 40
+#endif /* x86_64 */
+