1//===-- gtsf2vfp.S - Implement gtsf2vfp -----------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#include "../assembly.h"
10
11//
12// extern int __gtsf2vfp(float a, float b);
13//
14// Returns one iff a > b and neither is NaN.
15// Uses Darwin calling convention where single precision arguments are passsed
16// like 32-bit ints
17//
18	.syntax unified
19	.p2align 2
20DEFINE_COMPILERRT_FUNCTION(__gtsf2vfp)
21#if defined(COMPILER_RT_ARMHF_TARGET)
22	vcmp.f32 s0, s1
23#else
24	vmov	s14, r0		// move from GPR 0 to float register
25	vmov	s15, r1		// move from GPR 1 to float register
26	vcmp.f32 s14, s15
27#endif
28	vmrs	apsr_nzcv, fpscr
29	ITE(gt)
30	movgt	r0, #1		// set result register to 1 if equal
31	movle	r0, #0
32	bx	lr
33END_COMPILERRT_FUNCTION(__gtsf2vfp)
34
35NO_EXEC_STACK_DIRECTIVE
36
37