muldf3vfp.S revision 214152 
1//===-- muldf3vfp.S - Implement muldf3vfp ---------------------------------===//
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 __muldf3vfp(double a, double b);
14//
15// Multiplies two double precision floating point numbers using the Darwin
16// calling convention where double arguments are passsed in GPR pairs
17//
18	.align 2
19DEFINE_COMPILERRT_FUNCTION(__muldf3vfp)
20	fmdrr	d6, r0, r1		// move first param from r0/r1 pair into d6
21	fmdrr	d7, r2, r3		// move second param from r2/r3 pair into d7
22	fmuld	d6, d6, d7
23	fmrrd	r0, r1, d6		// move result back to r0/r1 pair
24	bx	lr
25