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//===-- cmpdi2.c - Implement __cmpdi2 -------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// 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
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