1e80e978d6aa211056beddf4582390e374d1935abNick Kledzik//===-- negdf2vfp.S - Implement negdf2vfp ---------------------------------===// 2e80e978d6aa211056beddf4582390e374d1935abNick Kledzik// 3e80e978d6aa211056beddf4582390e374d1935abNick Kledzik// The LLVM Compiler Infrastructure 4e80e978d6aa211056beddf4582390e374d1935abNick Kledzik// 59ad441ffec97db647fee3725b3424284fb913e14Howard Hinnant// This file is dual licensed under the MIT and the University of Illinois Open 69ad441ffec97db647fee3725b3424284fb913e14Howard Hinnant// Source Licenses. See LICENSE.TXT for details. 7e80e978d6aa211056beddf4582390e374d1935abNick Kledzik// 8e80e978d6aa211056beddf4582390e374d1935abNick Kledzik//===----------------------------------------------------------------------===// 9e80e978d6aa211056beddf4582390e374d1935abNick Kledzik 1019336a2d6b9b375ac106125950f4ff09742d1aecDaniel Dunbar#include "../assembly.h" 11e80e978d6aa211056beddf4582390e374d1935abNick Kledzik 12e80e978d6aa211056beddf4582390e374d1935abNick Kledzik// 13e80e978d6aa211056beddf4582390e374d1935abNick Kledzik// extern double __negdf2vfp(double a, double b); 14e80e978d6aa211056beddf4582390e374d1935abNick Kledzik// 15e80e978d6aa211056beddf4582390e374d1935abNick Kledzik// Returns the negation a double precision floating point numbers using the 16e80e978d6aa211056beddf4582390e374d1935abNick Kledzik// Darwin calling convention where double arguments are passsed in GPR pairs. 17e80e978d6aa211056beddf4582390e374d1935abNick Kledzik// 18c20f862690410045fc8c77879f7e78918d2372e4Bob Wilson .syntax unified 192d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines .p2align 2 20b4b1e8c5085cf83a50242057775a33ae4323d402Daniel DunbarDEFINE_COMPILERRT_FUNCTION(__negdf2vfp) 21e80e978d6aa211056beddf4582390e374d1935abNick Kledzik eor r1, r1, #-2147483648 // flip sign bit on double in r0/r1 pair 22e80e978d6aa211056beddf4582390e374d1935abNick Kledzik bx lr 232d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen HinesEND_COMPILERRT_FUNCTION(__negdf2vfp) 24