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1//===-- lib/comparetf2.c - Quad-precision comparisons -------------*- C -*-===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8//9// // This file implements the following soft-float comparison routines:10//11// __eqtf2 __getf2 __unordtf212// __letf2 __gttf213// __lttf214// __netf215//16// The semantics of the routines grouped in each column are identical, so there17// is a single implementation for each, and wrappers to provide the other names.18//19// The main routines behave as follows:20//21// __letf2(a,b) returns -1 if a < b22// 0 if a == b23// 1 if a > b24// 1 if either a or b is NaN25//26// __getf2(a,b) returns -1 if a < b27// 0 if a == b28// 1 if a > b29// -1 if either a or b is NaN30//31// __unordtf2(a,b) returns 0 if both a and b are numbers32// 1 if either a or b is NaN33//34// Note that __letf2( ) and __getf2( ) are identical except in their handling of35// NaN values.36//37//===----------------------------------------------------------------------===//38 39#define QUAD_PRECISION40#include "fp_lib.h"41 42#if defined(CRT_HAS_TF_MODE)43#include "fp_compare_impl.inc"44 45COMPILER_RT_ABI CMP_RESULT __letf2(fp_t a, fp_t b) { return __leXf2__(a, b); }46 47#if defined(__ELF__)48// Alias for libgcc compatibility49COMPILER_RT_ALIAS(__letf2, __cmptf2)50#endif51COMPILER_RT_ALIAS(__letf2, __eqtf2)52COMPILER_RT_ALIAS(__letf2, __lttf2)53COMPILER_RT_ALIAS(__letf2, __netf2)54 55COMPILER_RT_ABI CMP_RESULT __getf2(fp_t a, fp_t b) { return __geXf2__(a, b); }56 57COMPILER_RT_ALIAS(__getf2, __gttf2)58 59COMPILER_RT_ABI CMP_RESULT __unordtf2(fp_t a, fp_t b) {60 return __unordXf2__(a, b);61}62 63#endif64