1//===-- floatsidfvfp.S - Implement floatsidfvfp ---------------------------===// 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 double __floatsidfvfp(int a); 13// 14// Converts a 32-bit int to a double precision float. 15// Uses Darwin calling convention where a double precision result is 16// return in GPR register pair. 17// 18 .syntax unified 19 .p2align 2 20DEFINE_COMPILERRT_FUNCTION(__floatsidfvfp) 21#if defined(COMPILER_RT_ARMHF_TARGET) 22 vmov s0, r0 23 vcvt.f64.s32 d0, s0 24#else 25 vmov s15, r0 // move int to float register s15 26 vcvt.f64.s32 d7, s15 // convert 32-bit int in s15 to double in d7 27 vmov r0, r1, d7 // move d7 to result register pair r0/r1 28#endif 29 bx lr 30END_COMPILERRT_FUNCTION(__floatsidfvfp) 31 32NO_EXEC_STACK_DIRECTIVE 33 34