blob: 30b2f3cf9364d31ae9c6145762c19300ab525ad1 (
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
|
//===-- fixsfsivfp.S - Implement fixsfsivfp -----------------------===//
//
// 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"
//
// extern int __fixsfsivfp(float a);
//
// Converts single precision float to a 32-bit int rounding towards zero.
// Uses Darwin calling convention where a single precision parameter is
// passed in a GPR..
//
.syntax unified
.p2align 2
DEFINE_COMPILERRT_FUNCTION(__fixsfsivfp)
#if defined(COMPILER_RT_ARMHF_TARGET)
vcvt.s32.f32 s0, s0
vmov r0, s0
#else
vmov s15, r0 // load float register from R0
vcvt.s32.f32 s15, s15 // convert single to 32-bit int into s15
vmov r0, s15 // move s15 to result register
#endif
bx lr
END_COMPILERRT_FUNCTION(__fixsfsivfp)
NO_EXEC_STACK_DIRECTIVE
|
