1//===-- floatunssisfvfp.S - Implement floatunssisfvfp ---------------------===//
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 float __floatunssisfvfp(unsigned int a);
13//
14// Converts single precision float to a 32-bit int rounding towards zero.
15// Uses Darwin calling convention where a single precision result is
16// return in a GPR..
17//
18	.syntax unified
19	.p2align 2
20DEFINE_COMPILERRT_FUNCTION(__floatunssisfvfp)
21#if defined(COMPILER_RT_ARMHF_TARGET)
22	vmov s0, r0
23	vcvt.f32.u32 s0, s0
24#else
25	vmov	s15, r0	       // move int to float register s15
26	vcvt.f32.u32 s15, s15  // convert 32-bit int in s15 to float in s15
27	vmov	r0, s15        // move s15 to result register
28#endif
29	bx	lr
30END_COMPILERRT_FUNCTION(__floatunssisfvfp)
31
32NO_EXEC_STACK_DIRECTIVE
33
34