1 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
2 | // See https://llvm.org/LICENSE.txt for license information. |
3 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
4 | |
5 | #include "../assembly.h" |
6 | |
7 | // float __floatundisf(du_int a); |
8 | |
9 | #ifdef __x86_64__ |
10 | |
11 | CONST_SECTION |
12 | |
13 | .balign 16 |
14 | two: |
15 | .single 2.0 |
16 | |
17 | #define REL_ADDR(_a) (_a)(%rip) |
18 | |
19 | .text |
20 | .balign 4 |
21 | DEFINE_COMPILERRT_FUNCTION(__floatundisf) |
22 | movq $1, %rsi |
23 | testq %rdi, %rdi |
24 | js 1f |
25 | cvtsi2ssq %rdi, %xmm0 |
26 | ret |
27 | |
28 | 1: andq %rdi, %rsi |
29 | shrq %rdi |
30 | orq %rsi, %rdi |
31 | cvtsi2ssq %rdi, %xmm0 |
32 | mulss REL_ADDR(two), %xmm0 |
33 | ret |
34 | END_COMPILERRT_FUNCTION(__floatundisf) |
35 | |
36 | #endif // __x86_64__ |
37 | |
38 | NO_EXEC_STACK_DIRECTIVE |
39 | |
40 | |