negdf2vfp.S revision 77ed6142daed1e068fbda64405d0de9845e40e1a 
1//===-- negdf2vfp.S - Implement negdf2vfp ---------------------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#include "../assembly.h"
11
12//
13// extern double __negdf2vfp(double a, double b);
14//
15// Returns the negation a double precision floating point numbers using the
16// Darwin calling convention where double arguments are passsed in GPR pairs.
17//
18DEFINE_COMPILERRT_FUNCTION(__negdf2vfp)
19	eor	r1, r1, #-2147483648	// flip sign bit on double in r0/r1 pair
20	bx	lr
21