10963c9e8ea7f97732b0fce419fa6f2e96d951969Nick Kledzik//===-- floatsisfvfp.S - Implement floatsisfvfp ---------------------------===// 20963c9e8ea7f97732b0fce419fa6f2e96d951969Nick Kledzik// 30963c9e8ea7f97732b0fce419fa6f2e96d951969Nick Kledzik// The LLVM Compiler Infrastructure 40963c9e8ea7f97732b0fce419fa6f2e96d951969Nick Kledzik// 59ad441ffec97db647fee3725b3424284fb913e14Howard Hinnant// This file is dual licensed under the MIT and the University of Illinois Open 69ad441ffec97db647fee3725b3424284fb913e14Howard Hinnant// Source Licenses. See LICENSE.TXT for details. 70963c9e8ea7f97732b0fce419fa6f2e96d951969Nick Kledzik// 80963c9e8ea7f97732b0fce419fa6f2e96d951969Nick Kledzik//===----------------------------------------------------------------------===// 90963c9e8ea7f97732b0fce419fa6f2e96d951969Nick Kledzik 1019336a2d6b9b375ac106125950f4ff09742d1aecDaniel Dunbar#include "../assembly.h" 110963c9e8ea7f97732b0fce419fa6f2e96d951969Nick Kledzik 120963c9e8ea7f97732b0fce419fa6f2e96d951969Nick Kledzik// 130963c9e8ea7f97732b0fce419fa6f2e96d951969Nick Kledzik// extern float __floatsisfvfp(int a); 140963c9e8ea7f97732b0fce419fa6f2e96d951969Nick Kledzik// 150963c9e8ea7f97732b0fce419fa6f2e96d951969Nick Kledzik// Converts single precision float to a 32-bit int rounding towards zero. 160963c9e8ea7f97732b0fce419fa6f2e96d951969Nick Kledzik// Uses Darwin calling convention where a single precision result is 170963c9e8ea7f97732b0fce419fa6f2e96d951969Nick Kledzik// return in a GPR.. 180963c9e8ea7f97732b0fce419fa6f2e96d951969Nick Kledzik// 19c20f862690410045fc8c77879f7e78918d2372e4Bob Wilson .syntax unified 20d016b38b065fbe3e22584728c3b8bc55fc8a5f9cNick Kledzik .align 2 21b4b1e8c5085cf83a50242057775a33ae4323d402Daniel DunbarDEFINE_COMPILERRT_FUNCTION(__floatsisfvfp) 22c20f862690410045fc8c77879f7e78918d2372e4Bob Wilson vmov s15, r0 // move int to float register s15 23c20f862690410045fc8c77879f7e78918d2372e4Bob Wilson vcvt.f32.s32 s15, s15 // convert 32-bit int in s15 to float in s15 24c20f862690410045fc8c77879f7e78918d2372e4Bob Wilson vmov r0, s15 // move s15 to result register 250963c9e8ea7f97732b0fce419fa6f2e96d951969Nick Kledzik bx lr 26