1 //===- llvm/lib/Target/X86/X86CallLowering.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_X86_X86CALLLOWERING_H 15 #define LLVM_LIB_TARGET_X86_X86CALLLOWERING_H 16 17 #include "llvm/CodeGen/GlobalISel/CallLowering.h" 18 #include <functional> 19 20 namespace llvm { 21 22 template <typename T> class ArrayRef; 23 class X86TargetLowering; 24 25 class X86CallLowering : public CallLowering { 26 public: 27 X86CallLowering(const X86TargetLowering &TLI); 28 29 bool lowerReturn(MachineIRBuilder &MIRBuilder, const Value *Val, 30 ArrayRef<Register> VRegs, 31 FunctionLoweringInfo &FLI) const override; 32 33 bool lowerFormalArguments(MachineIRBuilder &MIRBuilder, const Function &F, 34 ArrayRef<ArrayRef<Register>> VRegs, 35 FunctionLoweringInfo &FLI) const override; 36 37 bool lowerCall(MachineIRBuilder &MIRBuilder, 38 CallLoweringInfo &Info) const override; 39 40 bool canLowerReturn(MachineFunction &MF, CallingConv::ID CallConv, 41 SmallVectorImpl<BaseArgInfo> &Outs, 42 bool IsVarArg) const override; 43 }; 44 45 } // end namespace llvm 46 47 #endif // LLVM_LIB_TARGET_X86_X86CALLLOWERING_H 48