llvm-project

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//===-- ucmpti2.c - Implement __ucmpti2 -----------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements __ucmpti2 for the compiler_rt library.
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//
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//===----------------------------------------------------------------------===//
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#include "int_lib.h"
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#ifdef CRT_HAS_128BIT
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// Returns:  if (a <  b) returns 0
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//           if (a == b) returns 1
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//           if (a >  b) returns 2
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COMPILER_RT_ABI si_int __ucmpti2(tu_int a, tu_int b) {
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  utwords x;
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  x.all = a;
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  utwords y;
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  y.all = b;
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  if (x.s.high < y.s.high)
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    return 0;
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  if (x.s.high > y.s.high)
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    return 2;
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  if (x.s.low < y.s.low)
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    return 0;
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  if (x.s.low > y.s.low)
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    return 2;
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  return 1;
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}
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#endif // CRT_HAS_128BIT
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