forked from OSchip/llvm-project
53 lines
1.7 KiB
C++
53 lines
1.7 KiB
C++
//===- llvm/lib/Target/X86/X86CallLowering.h - Call lowering ----*- C++ -*-===//
|
|
//
|
|
// 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
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
/// \file
|
|
/// This file describes how to lower LLVM calls to machine code calls.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_LIB_TARGET_X86_X86CALLLOWERING_H
|
|
#define LLVM_LIB_TARGET_X86_X86CALLLOWERING_H
|
|
|
|
#include "llvm/ADT/ArrayRef.h"
|
|
#include "llvm/CodeGen/GlobalISel/CallLowering.h"
|
|
#include <functional>
|
|
|
|
namespace llvm {
|
|
|
|
class DataLayout;
|
|
class MachineRegisterInfo;
|
|
class X86TargetLowering;
|
|
|
|
class X86CallLowering : public CallLowering {
|
|
public:
|
|
X86CallLowering(const X86TargetLowering &TLI);
|
|
|
|
bool lowerReturn(MachineIRBuilder &MIRBuilder, const Value *Val,
|
|
ArrayRef<Register> VRegs) const override;
|
|
|
|
bool lowerFormalArguments(MachineIRBuilder &MIRBuilder, const Function &F,
|
|
ArrayRef<ArrayRef<Register>> VRegs) const override;
|
|
|
|
bool lowerCall(MachineIRBuilder &MIRBuilder,
|
|
CallLoweringInfo &Info) const override;
|
|
|
|
private:
|
|
/// A function of this type is used to perform value split action.
|
|
using SplitArgTy = std::function<void(ArrayRef<Register>)>;
|
|
|
|
bool splitToValueTypes(const ArgInfo &OrigArgInfo,
|
|
SmallVectorImpl<ArgInfo> &SplitArgs,
|
|
const DataLayout &DL, MachineRegisterInfo &MRI,
|
|
SplitArgTy SplitArg) const;
|
|
};
|
|
|
|
} // end namespace llvm
|
|
|
|
#endif // LLVM_LIB_TARGET_X86_X86CALLLOWERING_H
|