1//===-- subsf3vfp.S - Implement subsf3vfp ---------------------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is dual licensed under the MIT and the University of Illinois Open
6// Source Licenses. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#include "../assembly.h"
11
12//
13// extern float __subsf3vfp(float a, float b);
14//
15// Returns the difference between two single precision floating point numbers
16// using the Darwin calling convention where single arguments are passsed
17// like 32-bit ints.
18//
19	.syntax unified
20	.p2align 2
21DEFINE_COMPILERRT_FUNCTION(__subsf3vfp)
22	vmov	s14, r0		// move first param from r0 into float register
23	vmov	s15, r1		// move second param from r1 into float register
24	vsub.f32 s14, s14, s15
25	vmov	r0, s14		// move result back to r0
26	bx	lr
27END_COMPILERRT_FUNCTION(__subsf3vfp)
28