blob: 30b4d9f4b96c21c9a18b32d098dc3204a6103770 (
plain) (
blame)
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
|
// 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
#include "../assembly.h"
// long double __floatundixf(du_int a);16
#ifdef __i386__
CONST_SECTION
.balign 16
twop52:
.quad 0x4330000000000000
.balign 16
twop84_plus_twop52_neg:
.quad 0xc530000000100000
.balign 16
twop84:
.quad 0x4530000000000000
#define REL_ADDR(_a) (_a)-0b(%eax)
.text
.balign 4
DEFINE_COMPILERRT_FUNCTION(__floatundixf)
calll 0f
0: popl %eax
movss 8(%esp), %xmm0 // hi 32 bits of input
movss 4(%esp), %xmm1 // lo 32 bits of input
orpd REL_ADDR(twop84), %xmm0 // 2^84 + hi (as a double)
orpd REL_ADDR(twop52), %xmm1 // 2^52 + lo (as a double)
addsd REL_ADDR(twop84_plus_twop52_neg), %xmm0 // hi - 2^52 (no rounding occurs)
movsd %xmm1, 4(%esp)
fldl 4(%esp)
movsd %xmm0, 4(%esp)
faddl 4(%esp)
ret
END_COMPILERRT_FUNCTION(__floatundixf)
#endif // __i386__
NO_EXEC_STACK_DIRECTIVE
|
