| //===-- lib/comparesf2.c - Single-precision comparisons -----------*- 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 the following soft-fp_t comparison routines: |
| // |
| // __eqsf2 __gesf2 __unordsf2 |
| // __lesf2 __gtsf2 |
| // __ltsf2 |
| // __nesf2 |
| // |
| // The semantics of the routines grouped in each column are identical, so there |
| // is a single implementation for each, and wrappers to provide the other names. |
| // |
| // The main routines behave as follows: |
| // |
| // __lesf2(a,b) returns -1 if a < b |
| // 0 if a == b |
| // 1 if a > b |
| // 1 if either a or b is NaN |
| // |
| // __gesf2(a,b) returns -1 if a < b |
| // 0 if a == b |
| // 1 if a > b |
| // -1 if either a or b is NaN |
| // |
| // __unordsf2(a,b) returns 0 if both a and b are numbers |
| // 1 if either a or b is NaN |
| // |
| // Note that __lesf2( ) and __gesf2( ) are identical except in their handling of |
| // NaN values. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #define SINGLE_PRECISION |
| #include "fp_lib.h" |
| |
| #include "fp_compare_impl.inc" |
| |
| COMPILER_RT_ABI CMP_RESULT __lesf2(fp_t a, fp_t b) { return __leXf2__(a, b); } |
| |
| #if defined(__ELF__) |
| // Alias for libgcc compatibility |
| COMPILER_RT_ALIAS(__lesf2, __cmpsf2) |
| #endif |
| COMPILER_RT_ALIAS(__lesf2, __eqsf2) |
| COMPILER_RT_ALIAS(__lesf2, __ltsf2) |
| COMPILER_RT_ALIAS(__lesf2, __nesf2) |
| |
| COMPILER_RT_ABI CMP_RESULT __gesf2(fp_t a, fp_t b) { return __geXf2__(a, b); } |
| |
| COMPILER_RT_ALIAS(__gesf2, __gtsf2) |
| |
| COMPILER_RT_ABI CMP_RESULT __unordsf2(fp_t a, fp_t b) { |
| return __unordXf2__(a, b); |
| } |
| |
| #if defined(__ARM_EABI__) |
| #if defined(COMPILER_RT_ARMHF_TARGET) |
| AEABI_RTABI int __aeabi_fcmpun(fp_t a, fp_t b) { return __unordsf2(a, b); } |
| #else |
| COMPILER_RT_ALIAS(__unordsf2, __aeabi_fcmpun) |
| #endif |
| #endif |
| |
| #if defined(_WIN32) && !defined(__MINGW32__) |
| // The alias mechanism doesn't work on Windows except for MinGW, so emit |
| // wrapper functions. |
| int __eqsf2(fp_t a, fp_t b) { return __lesf2(a, b); } |
| int __ltsf2(fp_t a, fp_t b) { return __lesf2(a, b); } |
| int __nesf2(fp_t a, fp_t b) { return __lesf2(a, b); } |
| int __gtsf2(fp_t a, fp_t b) { return __gesf2(a, b); } |
| #endif |
