162306a36Sopenharmony_ci// SPDX-License-Identifier: GPL-2.0 262306a36Sopenharmony_ci#include <linux/export.h> 362306a36Sopenharmony_ci 462306a36Sopenharmony_ci#include "libgcc.h" 562306a36Sopenharmony_ci 662306a36Sopenharmony_cilong long __ashrdi3(long long u, word_type b) 762306a36Sopenharmony_ci{ 862306a36Sopenharmony_ci DWunion uu, w; 962306a36Sopenharmony_ci word_type bm; 1062306a36Sopenharmony_ci 1162306a36Sopenharmony_ci if (b == 0) 1262306a36Sopenharmony_ci return u; 1362306a36Sopenharmony_ci 1462306a36Sopenharmony_ci uu.ll = u; 1562306a36Sopenharmony_ci bm = 32 - b; 1662306a36Sopenharmony_ci 1762306a36Sopenharmony_ci if (bm <= 0) { 1862306a36Sopenharmony_ci /* w.s.high = 1..1 or 0..0 */ 1962306a36Sopenharmony_ci w.s.high = 2062306a36Sopenharmony_ci uu.s.high >> 31; 2162306a36Sopenharmony_ci w.s.low = uu.s.high >> -bm; 2262306a36Sopenharmony_ci } else { 2362306a36Sopenharmony_ci const unsigned int carries = (unsigned int) uu.s.high << bm; 2462306a36Sopenharmony_ci 2562306a36Sopenharmony_ci w.s.high = uu.s.high >> b; 2662306a36Sopenharmony_ci w.s.low = ((unsigned int) uu.s.low >> b) | carries; 2762306a36Sopenharmony_ci } 2862306a36Sopenharmony_ci 2962306a36Sopenharmony_ci return w.ll; 3062306a36Sopenharmony_ci} 3162306a36Sopenharmony_ciEXPORT_SYMBOL(__ashrdi3); 32