aboutsummaryrefslogtreecommitdiffstats
path: root/contrib/libs/cxxsupp/builtins/arm/floatsisfvfp.S
blob: 21dc2df5694cf3d9dffb6413e53fbdb5e5402c40 (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
//===-- 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) 
	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 
	bx	lr 
END_COMPILERRT_FUNCTION(__floatsisfvfp)