forked from OSchip/llvm-project
52 lines
1.1 KiB
C
52 lines
1.1 KiB
C
/* ===-- cmpdi2.c - Implement __cmpdi2 -------------------------------------===
|
|
*
|
|
* 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 __cmpdi2 for the compiler_rt library.
|
|
*
|
|
* ===----------------------------------------------------------------------===
|
|
*/
|
|
|
|
#include "int_lib.h"
|
|
|
|
/* Returns: if (a < b) returns 0
|
|
* if (a == b) returns 1
|
|
* if (a > b) returns 2
|
|
*/
|
|
|
|
COMPILER_RT_ABI si_int
|
|
__cmpdi2(di_int a, di_int b)
|
|
{
|
|
dwords x;
|
|
x.all = a;
|
|
dwords y;
|
|
y.all = b;
|
|
if (x.s.high < y.s.high)
|
|
return 0;
|
|
if (x.s.high > y.s.high)
|
|
return 2;
|
|
if (x.s.low < y.s.low)
|
|
return 0;
|
|
if (x.s.low > y.s.low)
|
|
return 2;
|
|
return 1;
|
|
}
|
|
|
|
#ifdef __ARM_EABI__
|
|
/* Returns: if (a < b) returns -1
|
|
* if (a == b) returns 0
|
|
* if (a > b) returns 1
|
|
*/
|
|
COMPILER_RT_ABI si_int
|
|
__aeabi_lcmp(di_int a, di_int b)
|
|
{
|
|
return __cmpdi2(a, b) - 1;
|
|
}
|
|
#endif
|
|
|