compiler-rt/test/builtins/Unit/addvsi3_test.c

   1 // RUN: %clang_builtins %s %librt -o %t && %run %t
   2 // REQUIRES: librt_has_addvsi3
   3 //===-- addvsi3_test.c - Test __addvsi3 -----------------------------------===//
   4 //
   5 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   6 // See https://llvm.org/LICENSE.txt for license information.
   7 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   8 //
   9 //===----------------------------------------------------------------------===//
  10 //
  11 // This file tests __addvsi3 for the compiler_rt library.
  12 //
  13 //===----------------------------------------------------------------------===//
  14
  15 #include "int_lib.h"
  16 #include <stdio.h>
  17
  18 // Returns: a + b
  19
  20 // Effects: aborts if a + b overflows
  21
  22 COMPILER_RT_ABI si_int __addvsi3(si_int a, si_int b);
  23
  24 int test__addvsi3(si_int a, si_int b)
  25 {
  26     si_int x = __addvsi3(a, b);
  27     si_int expected = a + b;
  28     if (x != expected)
  29         printf("error in test__addvsi3(0x%X, 0x%X) = %d, expected %d\n",
  30                a, b, x, expected);
  31     return x != expected;
  32 }
  33
  34 int main()
  35 {
  36 //     test__addvsi3(0x80000000, -1);  // should abort
  37 //     test__addvsi3(-1, 0x80000000);  // should abort
  38 //     test__addvsi3(1, 0x7FFFFFFF);  // should abort
  39 //     test__addvsi3(0x7FFFFFFF, 1);  // should abort
  40
  41     if (test__addvsi3(0x80000000, 1))
  42         return 1;
  43     if (test__addvsi3(1, 0x80000000))
  44         return 1;
  45     if (test__addvsi3(0x80000000, 0))
  46         return 1;
  47     if (test__addvsi3(0, 0x80000000))
  48         return 1;
  49     if (test__addvsi3(0x7FFFFFFF, -1))
  50         return 1;
  51     if (test__addvsi3(-1, 0x7FFFFFFF))
  52         return 1;
  53     if (test__addvsi3(0x7FFFFFFF, 0))
  54         return 1;
  55     if (test__addvsi3(0, 0x7FFFFFFF))
  56         return 1;
  57
  58     return 0;
  59 }