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
|
//===-- floatsisfvfp.S - Implement floatsisfvfp ---------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "../assembly.h"
//
// extern float __floatsisfvfp(int a);
//
// Converts single precision float to a 32-bit int rounding towards zero.
// Uses Darwin calling convention where a single precision result is
// return in a GPR..
//
.syntax unified
.p2align 2
DEFINE_COMPILERRT_FUNCTION(__floatsisfvfp)
#if defined(COMPILER_RT_ARMHF_TARGET)
vmov s0, r0
vcvt.f32.s32 s0, s0
#else
vmov s15, r0 // move int to float register s15
vcvt.f32.s32 s15, s15 // convert 32-bit int in s15 to float in s15
vmov r0, s15 // move s15 to result register
#endif
bx lr
END_COMPILERRT_FUNCTION(__floatsisfvfp)
NO_EXEC_STACK_DIRECTIVE
|
