1 //===-- addvsi3.c - Implement __addvsi3 -----------------------------------===//
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
7 //===----------------------------------------------------------------------===//
9 // This file implements __addvsi3 for the compiler_rt library.
11 //===----------------------------------------------------------------------===//
17 // Effects: aborts if a + b overflows
19 COMPILER_RT_ABI si_int __addvsi3(si_int a, si_int b) {
20 si_int s = (su_int)a + (su_int)b;