minix/sys/external/bsd/compiler_rt/dist/lib/arm/muldf3vfp.S
Lionel Sambuc 4684ddb6aa LLVM Minix changes
- import libcxx
 - reduce targets to the one when compiled as a tools

Change-Id: Iabb8427f80ff8e89463559a28bcb8b4f2bdbc496
2014-07-28 17:05:59 +02:00

25 lines
885 B
ArmAsm

//===-- muldf3vfp.S - Implement muldf3vfp ---------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "../assembly.h"
//
// extern double __muldf3vfp(double a, double b);
//
// Multiplies two double precision floating point numbers using the Darwin
// calling convention where double arguments are passsed in GPR pairs
//
.syntax unified
.align 2
DEFINE_COMPILERRT_FUNCTION(__muldf3vfp)
vmov d6, r0, r1 // move first param from r0/r1 pair into d6
vmov d7, r2, r3 // move second param from r2/r3 pair into d7
vmul.f64 d6, d6, d7
vmov r0, r1, d6 // move result back to r0/r1 pair
bx lr