29 lines
741 B
C
29 lines
741 B
C
//===-- negvdi2.c - Implement __negvdi2 -----------------------------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file implements __negvdi2 for the compiler_rt library.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "int_lib.h"
|
|
#include <stdlib.h>
|
|
|
|
// Returns: -a
|
|
|
|
// Effects: aborts if -a overflows
|
|
|
|
di_int
|
|
__negvdi2(di_int a)
|
|
{
|
|
const di_int MIN = (di_int)1 << ((int)(sizeof(di_int) * CHAR_BIT)-1);
|
|
if (a == MIN)
|
|
abort();
|
|
return -a;
|
|
}
|