18c2ecf20Sopenharmony_ci// SPDX-License-Identifier: GPL-2.0 28c2ecf20Sopenharmony_ci#include <linux/module.h> 38c2ecf20Sopenharmony_ci 48c2ecf20Sopenharmony_ci#include "libgcc.h" 58c2ecf20Sopenharmony_ci 68c2ecf20Sopenharmony_cilong long __ashrdi3(long long u, word_type b) 78c2ecf20Sopenharmony_ci{ 88c2ecf20Sopenharmony_ci DWunion uu, w; 98c2ecf20Sopenharmony_ci word_type bm; 108c2ecf20Sopenharmony_ci 118c2ecf20Sopenharmony_ci if (b == 0) 128c2ecf20Sopenharmony_ci return u; 138c2ecf20Sopenharmony_ci 148c2ecf20Sopenharmony_ci uu.ll = u; 158c2ecf20Sopenharmony_ci bm = 32 - b; 168c2ecf20Sopenharmony_ci 178c2ecf20Sopenharmony_ci if (bm <= 0) { 188c2ecf20Sopenharmony_ci /* w.s.high = 1..1 or 0..0 */ 198c2ecf20Sopenharmony_ci w.s.high = 208c2ecf20Sopenharmony_ci uu.s.high >> 31; 218c2ecf20Sopenharmony_ci w.s.low = uu.s.high >> -bm; 228c2ecf20Sopenharmony_ci } else { 238c2ecf20Sopenharmony_ci const unsigned int carries = (unsigned int) uu.s.high << bm; 248c2ecf20Sopenharmony_ci 258c2ecf20Sopenharmony_ci w.s.high = uu.s.high >> b; 268c2ecf20Sopenharmony_ci w.s.low = ((unsigned int) uu.s.low >> b) | carries; 278c2ecf20Sopenharmony_ci } 288c2ecf20Sopenharmony_ci 298c2ecf20Sopenharmony_ci return w.ll; 308c2ecf20Sopenharmony_ci} 318c2ecf20Sopenharmony_ci 328c2ecf20Sopenharmony_ciEXPORT_SYMBOL(__ashrdi3); 33