test/builtins/Unit/addvti3_test.c

   1 // RUN: %clang_builtins %s %librt -o %t && %run %t
   2 // REQUIRES: int128
   3 //===-- addvti3_test.c - Test __addvti3 -----------------------------------===//
   4 //
   5 //                     The LLVM Compiler Infrastructure
   6 //
   7 // This file is dual licensed under the MIT and the University of Illinois Open
   8 // Source Licenses. See LICENSE.TXT for details.
   9 //
  10 //===----------------------------------------------------------------------===//
  11 //
  12 // This file tests __addvti3 for the compiler_rt library.
  13 //
  14 //===----------------------------------------------------------------------===//
  15
  16 #include "int_lib.h"
  17 #include <stdio.h>
  18
  19 #ifdef CRT_HAS_128BIT
  20
  21 // Returns: a + b
  22
  23 // Effects: aborts if a + b overflows
  24
  25 COMPILER_RT_ABI ti_int __addvti3(ti_int a, ti_int b);
  26
  27 int test__addvti3(ti_int a, ti_int b)
  28 {
  29     ti_int x = __addvti3(a, b);
  30     ti_int expected = a + b;
  31     if (x != expected)
  32     {
  33         twords at;
  34         at.all = a;
  35         twords bt;
  36         bt.all = b;
  37         twords xt;
  38         xt.all = x;
  39         twords expectedt;
  40         expectedt.all = expected;
  41         printf("error in test__addvti3(0x%llX%.16llX, 0x%llX%.16llX) = "
  42                "0x%llX%.16llX, expected 0x%llX%.16llX\n",
  43                 at.s.high, at.s.low, bt.s.high, bt.s.low, xt.s.high, xt.s.low,
  44                 expectedt.s.high, expectedt.s.low);
  45     }
  46     return x != expected;
  47 }
  48
  49 #endif
  50
  51 int main()
  52 {
  53 #ifdef CRT_HAS_128BIT
  54 // should abort
  55 //     test__addvti3(make_ti(0x8000000000000000LL, 0x0000000000000000LL),
  56 //                   make_ti(0xFFFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFFLL));
  57 // should abort
  58 //     test__addvti3(make_ti(0xFFFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFFLL),
  59 //                   make_ti(0x8000000000000000LL, 0x0000000000000000LL));
  60 // should abort
  61 //     test__addvti3(make_ti(0x0000000000000000LL, 0x0000000000000001LL),
  62 //                   make_ti(0x7FFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFFLL));
  63 // should abort
  64 //     test__addvti3(make_ti(0x7FFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFFLL),
  65 //                   make_ti(0x0000000000000000LL, 0x0000000000000001LL));
  66
  67     if (test__addvti3(make_ti(0x8000000000000000LL, 0x0000000000000000LL),
  68                       make_ti(0x0000000000000000LL, 0x0000000000000001LL)))
  69         return 1;
  70     if (test__addvti3(make_ti(0x0000000000000000LL, 0x0000000000000001LL),
  71                       make_ti(0x8000000000000000LL, 0x0000000000000000LL)))
  72         return 1;
  73     if (test__addvti3(make_ti(0x8000000000000000LL, 0x0000000000000000LL),
  74                       make_ti(0x0000000000000000LL, 0x0000000000000000LL)))
  75         return 1;
  76     if (test__addvti3(make_ti(0x0000000000000000LL, 0x0000000000000000LL),
  77                       make_ti(0x8000000000000000LL, 0x0000000000000000LL)))
  78         return 1;
  79     if (test__addvti3(make_ti(0x7FFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFFLL),
  80                       make_ti(0xFFFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFFLL)))
  81         return 1;
  82     if (test__addvti3(make_ti(0xFFFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFFLL),
  83                       make_ti(0x7FFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFFLL)))
  84         return 1;
  85     if (test__addvti3(make_ti(0x7FFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFFLL),
  86                       make_ti(0x0000000000000000LL, 0x0000000000000000LL)))
  87         return 1;
  88     if (test__addvti3(make_ti(0x0000000000000000LL, 0x0000000000000000LL),
  89                       make_ti(0x7FFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFFLL)))
  90         return 1;
  91
  92 #else
  93     printf("skipped\n");
  94 #endif
  95     return 0;
  96 }