1276789Sdim//===-- ltdf2vfp.S - Implement ltdf2vfp -----------------------------------===// 2276789Sdim// 3276789Sdim// The LLVM Compiler Infrastructure 4276789Sdim// 5276789Sdim// This file is dual licensed under the MIT and the University of Illinois Open 6276789Sdim// Source Licenses. See LICENSE.TXT for details. 7276789Sdim// 8276789Sdim//===----------------------------------------------------------------------===// 9276789Sdim 10276789Sdim#include "../assembly.h" 11276789Sdim 12276789Sdim// 13276789Sdim// extern double __ltdf2vfp(double a, double b); 14276789Sdim// 15276789Sdim// Returns one iff a < b and neither is NaN. 16276789Sdim// Uses Darwin calling convention where double precision arguments are passsed 17276789Sdim// like in GPR pairs. 18276789Sdim// 19276789Sdim .syntax unified 20276789Sdim .p2align 2 21276789SdimDEFINE_COMPILERRT_FUNCTION(__ltdf2vfp) 22276789Sdim vmov d6, r0, r1 // load r0/r1 pair in double register 23276789Sdim vmov d7, r2, r3 // load r2/r3 pair in double register 24276789Sdim vcmp.f64 d6, d7 25276789Sdim vmrs apsr_nzcv, fpscr 26276789Sdim movmi r0, #1 // set result register to 1 if equal 27276789Sdim movpl r0, #0 28276789Sdim bx lr 29276789SdimEND_COMPILERRT_FUNCTION(__ltdf2vfp) 30