1 | //===-- lesf2vfp.S - Implement lesf2vfp -----------------------------------===// |
2 | // |
3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
4 | // See https://llvm.org/LICENSE.txt for license information. |
5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
6 | // |
7 | //===----------------------------------------------------------------------===// |
8 | |
9 | #include "../assembly.h" |
10 | |
11 | // |
12 | // extern int __lesf2vfp(float a, float b); |
13 | // |
14 | // Returns one iff a <= b and neither is NaN. |
15 | // Uses Darwin calling convention where single precision arguments are passsed |
16 | // like 32-bit ints |
17 | // |
18 | .syntax unified |
19 | .p2align 2 |
20 | DEFINE_COMPILERRT_FUNCTION(__lesf2vfp) |
21 | #if defined(COMPILER_RT_ARMHF_TARGET) |
22 | vcmp.f32 s0, s1 |
23 | #else |
24 | vmov s14, r0 // move from GPR 0 to float register |
25 | vmov s15, r1 // move from GPR 1 to float register |
26 | vcmp.f32 s14, s15 |
27 | #endif |
28 | vmrs apsr_nzcv, fpscr |
29 | ITE(ls) |
30 | movls r0, #1 // set result register to 1 if equal |
31 | movhi r0, #0 |
32 | bx lr |
33 | END_COMPILERRT_FUNCTION(__lesf2vfp) |
34 | |
35 | NO_EXEC_STACK_DIRECTIVE |
36 | |
37 | |