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//===-- llvm/lib/Target/X86/X86CallLowering.h - Call lowering -----===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
///
/// \file
/// This file describes how to lower LLVM calls to machine code calls.
///
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_X86_X86CALLLOWERING
#define LLVM_LIB_TARGET_X86_X86CALLLOWERING
#include "llvm/ADT/ArrayRef.h"
#include "llvm/CodeGen/GlobalISel/CallLowering.h"
namespace llvm {
class Function;
class MachineIRBuilder;
class X86TargetLowering;
class Value;
class X86CallLowering : public CallLowering {
public:
X86CallLowering(const X86TargetLowering &TLI);
bool lowerReturn(MachineIRBuilder &MIRBuiler, const Value *Val,
unsigned VReg) const override;
bool lowerFormalArguments(MachineIRBuilder &MIRBuilder, const Function &F,
ArrayRef<unsigned> VRegs) const override;
private:
/// A function of this type is used to perform value split action.
typedef std::function<void(ArrayRef<unsigned>)> SplitArgTy;
void splitToValueTypes(const ArgInfo &OrigArgInfo,
SmallVectorImpl<ArgInfo> &SplitArgs,
const DataLayout &DL, MachineRegisterInfo &MRI,
SplitArgTy SplitArg) const;
};
} // namespace llvm
#endif
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