1 //===- llvm/lib/Target/ARM/ARMCallLowering.h - Call lowering ----*- C++ -*-===// 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 /// \file 10 /// This file describes how to lower LLVM calls to machine code calls. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #ifndef LLVM_LIB_TARGET_ARM_ARMCALLLOWERING_H 15 #define LLVM_LIB_TARGET_ARM_ARMCALLLOWERING_H 16 17 #include "llvm/ADT/ArrayRef.h" 18 #include "llvm/CodeGen/GlobalISel/CallLowering.h" 19 #include "llvm/IR/CallingConv.h" 20 #include <cstdint> 21 #include <functional> 22 23 namespace llvm { 24 25 class ARMTargetLowering; 26 class MachineInstrBuilder; 27 class MachineIRBuilder; 28 class Value; 29 30 class ARMCallLowering : public CallLowering { 31 public: 32 ARMCallLowering(const ARMTargetLowering &TLI); 33 34 bool lowerReturn(MachineIRBuilder &MIRBuilder, const Value *Val, 35 ArrayRef<Register> VRegs, 36 FunctionLoweringInfo &FLI) const override; 37 38 bool lowerFormalArguments(MachineIRBuilder &MIRBuilder, const Function &F, 39 ArrayRef<ArrayRef<Register>> VRegs, 40 FunctionLoweringInfo &FLI) const override; 41 42 bool lowerCall(MachineIRBuilder &MIRBuilder, 43 CallLoweringInfo &Info) const override; 44 45 private: 46 bool lowerReturnVal(MachineIRBuilder &MIRBuilder, const Value *Val, 47 ArrayRef<Register> VRegs, 48 MachineInstrBuilder &Ret) const; 49 }; 50 51 } // end namespace llvm 52 53 #endif // LLVM_LIB_TARGET_ARM_ARMCALLLOWERING_H 54