blob: 0f1f924effc77d60870f479e36259f0e6586fa3c (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
|
/* ===-- subvdi3.c - Implement __subvdi3 -----------------------------------===
*
* The LLVM Compiler Infrastructure
*
* This file is dual licensed under the MIT and the University of Illinois Open
* Source Licenses. See LICENSE.TXT for details.
*
* ===----------------------------------------------------------------------===
*
* This file implements __subvdi3 for the compiler_rt library.
*
* ===----------------------------------------------------------------------===
*/
#include "int_lib.h"
/* Returns: a - b */
/* Effects: aborts if a - b overflows */
COMPILER_RT_ABI di_int
__subvdi3(di_int a, di_int b)
{
di_int s = a - b;
if (b >= 0)
{
if (s > a)
compilerrt_abort();
}
else
{
if (s <= a)
compilerrt_abort();
}
return s;
}
|
