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1//===-- lib/subtf3.c - Quad-precision subtraction -----------------*- 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 quad-precision soft-float subtraction.10//11//===----------------------------------------------------------------------===//12 13#define QUAD_PRECISION14#include "fp_lib.h"15 16#if defined(CRT_HAS_TF_MODE)17COMPILER_RT_ABI fp_t __addtf3(fp_t a, fp_t b);18 19// Subtraction; flip the sign bit of b and add.20COMPILER_RT_ABI fp_t __subtf3(fp_t a, fp_t b) {21 return __addtf3(a, fromRep(toRep(b) ^ signBit));22}23 24#endif25