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//===-- subvti3_test.c - Test __subvti3 -----------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file tests __subvti3 for the compiler_rt library.
//
//===----------------------------------------------------------------------===//
#if __x86_64
#include "int_lib.h"
#include <stdio.h>
#include <stdlib.h>
// Returns: a - b
// Effects: aborts if a - b overflows
ti_int __subvti3(ti_int a, ti_int b);
int test__subvti3(ti_int a, ti_int b)
{
ti_int x = __subvti3(a, b);
ti_int expected = a - b;
if (x != expected)
{
twords at;
at.all = a;
twords bt;
bt.all = b;
twords xt;
xt.all = x;
twords expectedt;
expectedt.all = expected;
printf("error in test__subvsi3(0x%.16llX%.16llX, 0x%.16llX%.16llX) = "
"0x%.16llX%.16llX, expected 0x%.16llX%.16llX\n",
at.s.high, at.s.low, bt.s.high, bt.s.low, xt.s.high, xt.s.low,
expectedt.s.high, expectedt.s.low);
}
return x != expected;
}
#endif
int main()
{
#if __x86_64
// test__subvti3(make_ti(0x8000000000000000LL, 0), 1); // should abort
// test__subvti3(0, make_ti(0x8000000000000000LL, 0)); // should abort
// test__subvti3(1, make_ti(0x8000000000000000LL, 0)); // should abort
// test__subvti3(make_ti(0x7FFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFFLL), -1); // should abort
// test__subvti3(-2, make_ti(0x7FFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFFLL)); // should abort
if (test__subvti3(make_ti(0x8000000000000000LL, 0), -1))
return 1;
if (test__subvti3(make_ti(0x8000000000000000LL, 0), 0))
return 1;
if (test__subvti3(-1, make_ti(0x8000000000000000LL, 0)))
return 1;
if (test__subvti3(make_ti(0x7FFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFFLL), 1))
return 1;
if (test__subvti3(make_ti(0x7FFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFFLL), 0))
return 1;
if (test__subvti3(1, make_ti(0x7FFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFFLL)))
return 1;
if (test__subvti3(0, make_ti(0x7FFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFFLL)))
return 1;
if (test__subvti3(-1, make_ti(0x7FFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFFLL)))
return 1;
#endif
return 0;
}
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