10b57cec5SDimitry Andric //===- llvm/lib/Target/ARM/ARMCallLowering.h - Call lowering ----*- C++ -*-===// 20b57cec5SDimitry Andric // 30b57cec5SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 40b57cec5SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 50b57cec5SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 60b57cec5SDimitry Andric // 70b57cec5SDimitry Andric //===----------------------------------------------------------------------===// 80b57cec5SDimitry Andric // 90b57cec5SDimitry Andric /// \file 100b57cec5SDimitry Andric /// This file describes how to lower LLVM calls to machine code calls. 110b57cec5SDimitry Andric // 120b57cec5SDimitry Andric //===----------------------------------------------------------------------===// 130b57cec5SDimitry Andric 140b57cec5SDimitry Andric #ifndef LLVM_LIB_TARGET_ARM_ARMCALLLOWERING_H 150b57cec5SDimitry Andric #define LLVM_LIB_TARGET_ARM_ARMCALLLOWERING_H 160b57cec5SDimitry Andric 170b57cec5SDimitry Andric #include "llvm/ADT/ArrayRef.h" 180b57cec5SDimitry Andric #include "llvm/CodeGen/GlobalISel/CallLowering.h" 190b57cec5SDimitry Andric #include "llvm/IR/CallingConv.h" 200b57cec5SDimitry Andric #include <cstdint> 210b57cec5SDimitry Andric #include <functional> 220b57cec5SDimitry Andric 230b57cec5SDimitry Andric namespace llvm { 240b57cec5SDimitry Andric 250b57cec5SDimitry Andric class ARMTargetLowering; 260b57cec5SDimitry Andric class MachineFunction; 270b57cec5SDimitry Andric class MachineInstrBuilder; 280b57cec5SDimitry Andric class MachineIRBuilder; 290b57cec5SDimitry Andric class Value; 300b57cec5SDimitry Andric 310b57cec5SDimitry Andric class ARMCallLowering : public CallLowering { 320b57cec5SDimitry Andric public: 330b57cec5SDimitry Andric ARMCallLowering(const ARMTargetLowering &TLI); 340b57cec5SDimitry Andric 350b57cec5SDimitry Andric bool lowerReturn(MachineIRBuilder &MIRBuilder, const Value *Val, 36*e8d8bef9SDimitry Andric ArrayRef<Register> VRegs, 37*e8d8bef9SDimitry Andric FunctionLoweringInfo &FLI) const override; 380b57cec5SDimitry Andric 390b57cec5SDimitry Andric bool lowerFormalArguments(MachineIRBuilder &MIRBuilder, const Function &F, 40*e8d8bef9SDimitry Andric ArrayRef<ArrayRef<Register>> VRegs, 41*e8d8bef9SDimitry Andric FunctionLoweringInfo &FLI) const override; 420b57cec5SDimitry Andric 438bcb0991SDimitry Andric bool lowerCall(MachineIRBuilder &MIRBuilder, 448bcb0991SDimitry Andric CallLoweringInfo &Info) const override; 450b57cec5SDimitry Andric 460b57cec5SDimitry Andric private: 470b57cec5SDimitry Andric bool lowerReturnVal(MachineIRBuilder &MIRBuilder, const Value *Val, 480b57cec5SDimitry Andric ArrayRef<Register> VRegs, 490b57cec5SDimitry Andric MachineInstrBuilder &Ret) const; 500b57cec5SDimitry Andric 510b57cec5SDimitry Andric /// Split an argument into one or more arguments that the CC lowering can cope 520b57cec5SDimitry Andric /// with. 530b57cec5SDimitry Andric void splitToValueTypes(const ArgInfo &OrigArg, 540b57cec5SDimitry Andric SmallVectorImpl<ArgInfo> &SplitArgs, 550b57cec5SDimitry Andric MachineFunction &MF) const; 560b57cec5SDimitry Andric }; 570b57cec5SDimitry Andric 580b57cec5SDimitry Andric } // end namespace llvm 590b57cec5SDimitry Andric 600b57cec5SDimitry Andric #endif // LLVM_LIB_TARGET_ARM_ARMCALLLOWERING_H 61