1*7c3d14c8STreehugger Robot//===-- negdf2vfp.S - Implement negdf2vfp ---------------------------------===// 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 double __negdf2vfp(double a, double b); 14*7c3d14c8STreehugger Robot// 15*7c3d14c8STreehugger Robot// Returns the negation a double precision floating point numbers using the 16*7c3d14c8STreehugger Robot// Darwin calling convention where double arguments are passsed in GPR pairs. 17*7c3d14c8STreehugger Robot// 18*7c3d14c8STreehugger Robot .syntax unified 19*7c3d14c8STreehugger Robot .p2align 2 20*7c3d14c8STreehugger RobotDEFINE_COMPILERRT_FUNCTION(__negdf2vfp) 21*7c3d14c8STreehugger Robot eor r1, r1, #-2147483648 // flip sign bit on double in r0/r1 pair 22*7c3d14c8STreehugger Robot bx lr 23*7c3d14c8STreehugger RobotEND_COMPILERRT_FUNCTION(__negdf2vfp) 24*7c3d14c8STreehugger Robot 25*7c3d14c8STreehugger RobotNO_EXEC_STACK_DIRECTIVE 26*7c3d14c8STreehugger Robot 27