1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
|
#![allow(unused_macros)]
#![allow(unreachable_code)]
#![cfg_attr(f128_enabled, feature(f128))]
use builtins_test::*;
mod float_comparisons {
use super::*;
macro_rules! cmp {
(
$f:ty, $x:ident, $y:ident, $apfloat_ty:ident, $sys_available:meta,
$($unordered_val:expr, $fn:ident);*;
) => {
$(
let cmp0 = if apfloat_fallback!(
$f, $apfloat_ty, $sys_available,
|x: FloatTy| x.is_nan() => no_convert,
$x
) || apfloat_fallback!(
$f, $apfloat_ty, $sys_available,
|y: FloatTy| y.is_nan() => no_convert,
$y
)
{
$unordered_val
} else if apfloat_fallback!(
$f, $apfloat_ty, $sys_available,
|x, y| x < y => no_convert,
$x, $y
) {
-1
} else if apfloat_fallback!(
$f, $apfloat_ty, $sys_available,
|x, y| x == y => no_convert,
$x, $y
) {
0
} else {
1
};
let cmp1 = $fn($x, $y);
if cmp0 != cmp1 {
panic!(
"{}({:?}, {:?}): std: {:?}, builtins: {:?}",
stringify!($fn), $x, $y, cmp0, cmp1
);
}
)*
};
}
#[test]
fn cmp_f32() {
use compiler_builtins::float::cmp::{
__eqsf2, __gesf2, __gtsf2, __lesf2, __ltsf2, __nesf2, __unordsf2,
};
fuzz_float_2(N, |x: f32, y: f32| {
assert_eq!(__unordsf2(x, y) != 0, x.is_nan() || y.is_nan());
cmp!(f32, x, y, Single, all(),
1, __ltsf2;
1, __lesf2;
1, __eqsf2;
-1, __gesf2;
-1, __gtsf2;
1, __nesf2;
);
});
}
#[test]
fn cmp_f64() {
use compiler_builtins::float::cmp::{
__eqdf2, __gedf2, __gtdf2, __ledf2, __ltdf2, __nedf2, __unorddf2,
};
fuzz_float_2(N, |x: f64, y: f64| {
assert_eq!(__unorddf2(x, y) != 0, x.is_nan() || y.is_nan());
cmp!(f64, x, y, Double, all(),
1, __ltdf2;
1, __ledf2;
1, __eqdf2;
-1, __gedf2;
-1, __gtdf2;
1, __nedf2;
);
});
}
#[test]
#[cfg(f128_enabled)]
fn cmp_f128() {
#[cfg(any(target_arch = "powerpc", target_arch = "powerpc64"))]
use compiler_builtins::float::cmp::{
__eqkf2 as __eqtf2, __gekf2 as __getf2, __gtkf2 as __gttf2, __lekf2 as __letf2,
__ltkf2 as __lttf2, __nekf2 as __netf2, __unordkf2 as __unordtf2,
};
#[cfg(not(any(target_arch = "powerpc", target_arch = "powerpc64")))]
use compiler_builtins::float::cmp::{
__eqtf2, __getf2, __gttf2, __letf2, __lttf2, __netf2, __unordtf2,
};
fuzz_float_2(N, |x: f128, y: f128| {
let x_is_nan = apfloat_fallback!(
f128, Quad, not(feature = "no-sys-f128"),
|x: FloatTy| x.is_nan() => no_convert,
x
);
let y_is_nan = apfloat_fallback!(
f128, Quad, not(feature = "no-sys-f128"),
|x: FloatTy| x.is_nan() => no_convert,
y
);
assert_eq!(__unordtf2(x, y) != 0, x_is_nan || y_is_nan);
cmp!(f128, x, y, Quad, not(feature = "no-sys-f128"),
1, __lttf2;
1, __letf2;
1, __eqtf2;
-1, __getf2;
-1, __gttf2;
1, __netf2;
);
});
}
}
#[cfg(target_arch = "arm")]
mod float_comparisons_arm {
use super::*;
macro_rules! cmp2 {
($x:ident, $y:ident, $($unordered_val:expr, $fn_std:expr, $fn_builtins:ident);*;) => {
$(
let cmp0: i32 = if $x.is_nan() || $y.is_nan() {
$unordered_val
} else {
$fn_std as i32
};
let cmp1: i32 = $fn_builtins($x, $y);
if cmp0 != cmp1 {
panic!("{}({}, {}): std: {}, builtins: {}", stringify!($fn_builtins), $x, $y, cmp0, cmp1);
}
)*
};
}
#[test]
fn cmp_f32() {
use compiler_builtins::float::cmp::{
__aeabi_fcmpeq, __aeabi_fcmpge, __aeabi_fcmpgt, __aeabi_fcmple, __aeabi_fcmplt,
};
fuzz_float_2(N, |x: f32, y: f32| {
cmp2!(x, y,
0, x < y, __aeabi_fcmplt;
0, x <= y, __aeabi_fcmple;
0, x == y, __aeabi_fcmpeq;
0, x >= y, __aeabi_fcmpge;
0, x > y, __aeabi_fcmpgt;
);
});
}
#[test]
fn cmp_f64() {
use compiler_builtins::float::cmp::{
__aeabi_dcmpeq, __aeabi_dcmpge, __aeabi_dcmpgt, __aeabi_dcmple, __aeabi_dcmplt,
};
fuzz_float_2(N, |x: f64, y: f64| {
cmp2!(x, y,
0, x < y, __aeabi_dcmplt;
0, x <= y, __aeabi_dcmple;
0, x == y, __aeabi_dcmpeq;
0, x >= y, __aeabi_dcmpge;
0, x > y, __aeabi_dcmpgt;
);
});
}
}
|
