1*0ba22f51SPetr Hosek //===-- addvti3.c - Implement __addvti3 -----------------------------------===// 2*0ba22f51SPetr Hosek // 3*0ba22f51SPetr Hosek // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4*0ba22f51SPetr Hosek // See https://llvm.org/LICENSE.txt for license information. 5*0ba22f51SPetr Hosek // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6*0ba22f51SPetr Hosek // 7*0ba22f51SPetr Hosek //===----------------------------------------------------------------------===// 8*0ba22f51SPetr Hosek // 9*0ba22f51SPetr Hosek // This file implements __addvti3 for the compiler_rt library. 10*0ba22f51SPetr Hosek // 11*0ba22f51SPetr Hosek //===----------------------------------------------------------------------===// 12a6b264b5SAlexey Samsonov 13a6b264b5SAlexey Samsonov #include "int_lib.h" 14a6b264b5SAlexey Samsonov 15938b0df7SJoerg Sonnenberger #ifdef CRT_HAS_128BIT 16a6b264b5SAlexey Samsonov 17*0ba22f51SPetr Hosek // Returns: a + b 18a6b264b5SAlexey Samsonov 19*0ba22f51SPetr Hosek // Effects: aborts if a + b overflows 20a6b264b5SAlexey Samsonov __addvti3(ti_int a,ti_int b)21082b89b2SPetr HosekCOMPILER_RT_ABI ti_int __addvti3(ti_int a, ti_int b) { 22ec9a8c8bSBob Wilson ti_int s = (tu_int)a + (tu_int)b; 23082b89b2SPetr Hosek if (b >= 0) { 24a6b264b5SAlexey Samsonov if (s < a) 25a6b264b5SAlexey Samsonov compilerrt_abort(); 26082b89b2SPetr Hosek } else { 27a6b264b5SAlexey Samsonov if (s >= a) 28a6b264b5SAlexey Samsonov compilerrt_abort(); 29a6b264b5SAlexey Samsonov } 30a6b264b5SAlexey Samsonov return s; 31a6b264b5SAlexey Samsonov } 32a6b264b5SAlexey Samsonov 33*0ba22f51SPetr Hosek #endif // CRT_HAS_128BIT 34