1//===-- ltsf2vfp.S - Implement ltsf2vfp -----------------------------------===//
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 int __ltsf2vfp(float a, float b);
14//
15// Returns one iff a < b and neither is NaN.
16// Uses Darwin calling convention where single precision arguments are passsed
17// like 32-bit ints
18//
19	.syntax unified
20	.p2align 2
21DEFINE_COMPILERRT_FUNCTION(__ltsf2vfp)
22	vmov	s14, r0     // move from GPR 0 to float register
23	vmov	s15, r1     // move from GPR 1 to float register
24	vcmp.f32 s14, s15
25	vmrs	apsr_nzcv, fpscr
26	movmi	r0, #1      // set result register to 1 if equal
27	movpl	r0, #0
28	bx	lr
29END_COMPILERRT_FUNCTION(__ltsf2vfp)
30