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//===-- addvsi3.c - Implement __addvsi3 -----------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements __addvsi3 for the compiler_rt library.
//
//===----------------------------------------------------------------------===//
#include "int_lib.h"
#include <stdlib.h>
// Returns: a + b
// Effects: aborts if a + b overflows
si_int
__addvsi3(si_int a, si_int b)
{
si_int s = a + b;
if (b >= 0)
{
if (s < a)
abort();
}
else
{
if (s >= a)
abort();
}
return s;
}
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