1167465Smp//===-- lib/comparesf2.c - Single-precision comparisons -----------*- C -*-===//
259243Sobrien//
359243Sobrien// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
459243Sobrien// See https://llvm.org/LICENSE.txt for license information.
559243Sobrien// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
659243Sobrien//
7//===----------------------------------------------------------------------===//
8//
9// This file implements the following soft-fp_t comparison routines:
10//
11//   __eqsf2   __gesf2   __unordsf2
12//   __lesf2   __gtsf2
13//   __ltsf2
14//   __nesf2
15//
16// The semantics of the routines grouped in each column are identical, so there
17// is a single implementation for each, and wrappers to provide the other names.
18//
19// The main routines behave as follows:
20//
21//   __lesf2(a,b) returns -1 if a < b
22//                         0 if a == b
23//                         1 if a > b
24//                         1 if either a or b is NaN
25//
26//   __gesf2(a,b) returns -1 if a < b
27//                         0 if a == b
28//                         1 if a > b
29//                        -1 if either a or b is NaN
30//
31//   __unordsf2(a,b) returns 0 if both a and b are numbers
32//                           1 if either a or b is NaN
33//
34// Note that __lesf2( ) and __gesf2( ) are identical except in their handling of
35// NaN values.
36//
37//===----------------------------------------------------------------------===//
38
39#define SINGLE_PRECISION
40#include "fp_lib.h"
41
42#include "fp_compare_impl.inc"
43
44COMPILER_RT_ABI CMP_RESULT __lesf2(fp_t a, fp_t b) { return __leXf2__(a, b); }
45
46#if defined(__ELF__)
47// Alias for libgcc compatibility
48COMPILER_RT_ALIAS(__lesf2, __cmpsf2)
49#endif
50COMPILER_RT_ALIAS(__lesf2, __eqsf2)
51COMPILER_RT_ALIAS(__lesf2, __ltsf2)
52COMPILER_RT_ALIAS(__lesf2, __nesf2)
53
54COMPILER_RT_ABI CMP_RESULT __gesf2(fp_t a, fp_t b) { return __geXf2__(a, b); }
55
56COMPILER_RT_ALIAS(__gesf2, __gtsf2)
57
58COMPILER_RT_ABI CMP_RESULT __unordsf2(fp_t a, fp_t b) {
59  return __unordXf2__(a, b);
60}
61
62#if defined(__ARM_EABI__)
63#if defined(COMPILER_RT_ARMHF_TARGET)
64AEABI_RTABI int __aeabi_fcmpun(fp_t a, fp_t b) { return __unordsf2(a, b); }
65#else
66COMPILER_RT_ALIAS(__unordsf2, __aeabi_fcmpun)
67#endif
68#endif
69
70#if defined(_WIN32) && !defined(__MINGW32__)
71// The alias mechanism doesn't work on Windows except for MinGW, so emit
72// wrapper functions.
73int __eqsf2(fp_t a, fp_t b) { return __lesf2(a, b); }
74int __ltsf2(fp_t a, fp_t b) { return __lesf2(a, b); }
75int __nesf2(fp_t a, fp_t b) { return __lesf2(a, b); }
76int __gtsf2(fp_t a, fp_t b) { return __gesf2(a, b); }
77#endif
78