1*7c3d14c8STreehugger Robot//===-- subsf3vfp.S - Implement subsf3vfp ---------------------------------===// 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 float __subsf3vfp(float a, float b); 14*7c3d14c8STreehugger Robot// 15*7c3d14c8STreehugger Robot// Returns the difference between two single precision floating point numbers 16*7c3d14c8STreehugger Robot// using the Darwin calling convention where single 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(__subsf3vfp) 22*7c3d14c8STreehugger Robot vmov s14, r0 // move first param from r0 into float register 23*7c3d14c8STreehugger Robot vmov s15, r1 // move second param from r1 into float register 24*7c3d14c8STreehugger Robot vsub.f32 s14, s14, s15 25*7c3d14c8STreehugger Robot vmov r0, s14 // move result back to r0 26*7c3d14c8STreehugger Robot bx lr 27*7c3d14c8STreehugger RobotEND_COMPILERRT_FUNCTION(__subsf3vfp) 28*7c3d14c8STreehugger Robot 29*7c3d14c8STreehugger RobotNO_EXEC_STACK_DIRECTIVE 30*7c3d14c8STreehugger Robot 31