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//===-- subdf3vfp.S - Implement subdf3vfp ---------------------------------===//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
#include "../assembly.h"
// extern double __subdf3vfp(double a, double b);
// Returns difference between two double precision floating point numbers using
// the Darwin calling convention where double arguments are passsed in GPR pairs
.syntax unified
.p2align 2
vsub.f64 d0, d0, d1
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
vsub.f64 d6, d6, d7
vmov r0, r1, d6 // move result back to r0/r1 pair
bx lr