218 #ifndef BITS_PER_ITER
219 #define BITS_PER_ITER (__LONG_WIDTH__ >= 64 ? 32 : 16)  macro
222 #if BITS_PER_ITER == 32
226 #undef BITS_PER_ITER
227 #define BITS_PER_ITER 16  macro
273 	reps = 64 / BITS_PER_ITER;  in mul_u64_add_u64_div_u64()
276 		reps -= 32 / BITS_PER_ITER;  in mul_u64_add_u64_div_u64()
280 #if BITS_PER_ITER == 16  in mul_u64_add_u64_div_u64()
296 	d_msig = (d >> (64 - BITS_PER_ITER)) + 1;  in mul_u64_add_u64_div_u64()
305 		q_digit = (unsigned long)(~n_hi >> (64 - 2 * BITS_PER_ITER)) / d_msig;  in mul_u64_add_u64_div_u64()
307 		overflow = n_hi >> (64 - BITS_PER_ITER);  in mul_u64_add_u64_div_u64()
308 		n_hi = add_u64_u32(n_hi << BITS_PER_ITER, n_lo >> (64 - BITS_PER_ITER));  in mul_u64_add_u64_div_u64()
309 		n_lo <<= BITS_PER_ITER;  in mul_u64_add_u64_div_u64()
313 		while (overflow < 0xffffffff >> (32 - BITS_PER_ITER)) {  in mul_u64_add_u64_div_u64()
318 		quotient = add_u64_long(quotient << BITS_PER_ITER, q_digit);  in mul_u64_add_u64_div_u64()