1//===-- adddf3vfp.S - Implement adddf3vfp ---------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#include "../assembly.h"
10
11// double __adddf3vfp(double a, double b) { return a + b; }
12//
13// Adds two double precision floating point numbers using the Darwin
14// calling convention where double arguments are passsed in GPR pairs
15
16	.syntax unified
17	.p2align 2
18DEFINE_COMPILERRT_FUNCTION(__adddf3vfp)
19#if defined(COMPILER_RT_ARMHF_TARGET)
20	vadd.f64 d0, d0, d1
21#else
22	vmov	d6, r0, r1		// move first param from r0/r1 pair into d6
23	vmov	d7, r2, r3		// move second param from r2/r3 pair into d7
24	vadd.f64 d6, d6, d7
25	vmov	r0, r1, d6		// move result back to r0/r1 pair
26#endif
27	bx	lr
28END_COMPILERRT_FUNCTION(__adddf3vfp)
29
30NO_EXEC_STACK_DIRECTIVE
31
32