hanchenye-llvm-project/compiler-rt/lib/cmpdi2.c

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//===-- cmpdi2.c - Implement __cmpdi2 -------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. 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
si_int
__cmpdi2(di_int a, di_int b)
{
dwords x;
x.all = a;
dwords y;
y.all = b;
if (x.high < y.high)
return 0;
if (x.high > y.high)
return 2;
if (x.low < y.low)
return 0;
if (x.low > y.low)
return 2;
return 1;
}