1 //===-- divsi3.c - Implement __divsi3 -------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // 9 // This file implements __divsi3 for the compiler_rt library. 10 // 11 //===----------------------------------------------------------------------===// 12 13 #include "int_lib.h" 14 15 // Returns: a / b 16 17 #define fixint_t si_int 18 #define fixuint_t su_int 19 // On CPUs without unsigned hardware division support, 20 // this calls __udivsi3 (notice the cast to su_int). 21 // On CPUs with unsigned hardware division support, 22 // this uses the unsigned division instruction. 23 #define COMPUTE_UDIV(a, b) ((su_int)(a) / (su_int)(b)) 24 #include "int_div_impl.inc" 25 26 COMPILER_RT_ABI si_int __divsi3(si_int a, si_int b) { return __divXi3(a, b); } 27 28 #if defined(__ARM_EABI__) 29 COMPILER_RT_ALIAS(__divsi3, __aeabi_idiv) 30 #endif 31