1 //===-- muldf3vfp.S - Implement muldf3vfp ---------------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #include "../assembly.h"
13 // extern double __muldf3vfp(double a, double b);
15 // Multiplies two double precision floating point numbers using the Darwin
16 // calling convention where double arguments are passsed in GPR pairs
19 DEFINE_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
23 fmrrd r0, r1, d6 // move result back to r0/r1 pair