| //===-- lib/adddf3.c - Double-precision subtraction ---------------*- C -*-===// |
| // |
| // 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 double-precision soft-float subtraction. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #define DOUBLE_PRECISION |
| #include "fp_lib.h" |
| |
| // Subtraction; flip the sign bit of b and add. |
| COMPILER_RT_ABI fp_t __subdf3(fp_t a, fp_t b) { |
| return __adddf3(a, fromRep(toRep(b) ^ signBit)); |
| } |
| |
| #if defined(__ARM_EABI__) |
| #if defined(COMPILER_RT_ARMHF_TARGET) |
| AEABI_RTABI fp_t __aeabi_dsub(fp_t a, fp_t b) { return __subdf3(a, b); } |
| #else |
| COMPILER_RT_ALIAS(__subdf3, __aeabi_dsub) |
| #endif |
| #endif |
