llvm/compiler-rt/lib/builtins/arm/sync_fetch_and_add_8.S

//===-- sync_fetch_and_add_8.S - ------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file implements the __sync_fetch_and_add_8 function for the ARM
// architecture.
//
//===----------------------------------------------------------------------===//

#include "sync-ops.h"

#if __ARM_ARCH_PROFILE != 'M'
#define add_8(rD_LO, rD_HI, rN_LO, rN_HI, rM_LO, rM_HI) \
    adds rD_LO, rN_LO, rM_LO ; \
    adc rD_HI, rN_HI, rM_HI

SYNC_OP_8(add_8)
#endif

NO_EXEC_STACK_DIRECTIVE