1156cd587Sjoerg//===-- ltsf2vfp.S - Implement ltsf2vfp -----------------------------------===// 2156cd587Sjoerg// 3156cd587Sjoerg// The LLVM Compiler Infrastructure 4156cd587Sjoerg// 5156cd587Sjoerg// This file is dual licensed under the MIT and the University of Illinois Open 6156cd587Sjoerg// Source Licenses. See LICENSE.TXT for details. 7156cd587Sjoerg// 8156cd587Sjoerg//===----------------------------------------------------------------------===// 9156cd587Sjoerg 10156cd587Sjoerg#include "../assembly.h" 11156cd587Sjoerg 12156cd587Sjoerg// 13156cd587Sjoerg// extern int __ltsf2vfp(float a, float b); 14156cd587Sjoerg// 15156cd587Sjoerg// Returns one iff a < b and neither is NaN. 16156cd587Sjoerg// Uses Darwin calling convention where single precision arguments are passsed 17156cd587Sjoerg// like 32-bit ints 18156cd587Sjoerg// 19156cd587Sjoerg .syntax unified 20*61f2f256Sjoerg .p2align 2 21156cd587SjoergDEFINE_COMPILERRT_FUNCTION(__ltsf2vfp) 22156cd587Sjoerg vmov s14, r0 // move from GPR 0 to float register 23156cd587Sjoerg vmov s15, r1 // move from GPR 1 to float register 24156cd587Sjoerg vcmp.f32 s14, s15 25156cd587Sjoerg vmrs apsr_nzcv, fpscr 26156cd587Sjoerg movmi r0, #1 // set result register to 1 if equal 27156cd587Sjoerg movpl r0, #0 28156cd587Sjoerg bx lr 29156cd587SjoergEND_COMPILERRT_FUNCTION(__ltsf2vfp) 30