1 //===-- floatunssisfvfp.S - Implement floatunssisfvfp ---------------------===//
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
7 //===----------------------------------------------------------------------===//
9 #include "../assembly.h"
12 // extern float __floatunssisfvfp(unsigned int a);
14 // Converts single precision float to a 32-bit int rounding towards zero.
15 // Uses Darwin calling convention where a single precision result is
20 DEFINE_COMPILERRT_FUNCTION(__floatunssisfvfp)
21 #if defined(COMPILER_RT_ARMHF_TARGET)
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
30 END_COMPILERRT_FUNCTION(__floatunssisfvfp)
32 NO_EXEC_STACK_DIRECTIVE