1*7c3d14c8STreehugger Robot//===-- ltsf2vfp.S - Implement ltsf2vfp -----------------------------------===// 2*7c3d14c8STreehugger Robot// 3*7c3d14c8STreehugger Robot// The LLVM Compiler Infrastructure 4*7c3d14c8STreehugger Robot// 5*7c3d14c8STreehugger Robot// This file is dual licensed under the MIT and the University of Illinois Open 6*7c3d14c8STreehugger Robot// Source Licenses. See LICENSE.TXT for details. 7*7c3d14c8STreehugger Robot// 8*7c3d14c8STreehugger Robot//===----------------------------------------------------------------------===// 9*7c3d14c8STreehugger Robot 10*7c3d14c8STreehugger Robot#include "../assembly.h" 11*7c3d14c8STreehugger Robot 12*7c3d14c8STreehugger Robot// 13*7c3d14c8STreehugger Robot// extern int __ltsf2vfp(float a, float b); 14*7c3d14c8STreehugger Robot// 15*7c3d14c8STreehugger Robot// Returns one iff a < b and neither is NaN. 16*7c3d14c8STreehugger Robot// Uses Darwin calling convention where single precision arguments are passsed 17*7c3d14c8STreehugger Robot// like 32-bit ints 18*7c3d14c8STreehugger Robot// 19*7c3d14c8STreehugger Robot .syntax unified 20*7c3d14c8STreehugger Robot .p2align 2 21*7c3d14c8STreehugger RobotDEFINE_COMPILERRT_FUNCTION(__ltsf2vfp) 22*7c3d14c8STreehugger Robot vmov s14, r0 // move from GPR 0 to float register 23*7c3d14c8STreehugger Robot vmov s15, r1 // move from GPR 1 to float register 24*7c3d14c8STreehugger Robot vcmp.f32 s14, s15 25*7c3d14c8STreehugger Robot vmrs apsr_nzcv, fpscr 26*7c3d14c8STreehugger Robot movmi r0, #1 // set result register to 1 if equal 27*7c3d14c8STreehugger Robot movpl r0, #0 28*7c3d14c8STreehugger Robot bx lr 29*7c3d14c8STreehugger RobotEND_COMPILERRT_FUNCTION(__ltsf2vfp) 30*7c3d14c8STreehugger Robot 31*7c3d14c8STreehugger RobotNO_EXEC_STACK_DIRECTIVE 32*7c3d14c8STreehugger Robot 33