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//===-- negvsi2.c - Implement __negvsi2 -----------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements __negvsi2 for the compiler_rt library.
//
//===----------------------------------------------------------------------===//
#include "int_lib.h"
#include <stdlib.h>
// Returns: -a
// Effects: aborts if -a overflows
si_int
__negvsi2(si_int a)
{
const si_int MIN = (si_int)1 << ((int)(sizeof(si_int) * CHAR_BIT)-1);
if (a == MIN)
abort();
return -a;
}
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