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