forked from OSchip/llvm-project
65 lines
2.1 KiB
C++
65 lines
2.1 KiB
C++
//===- AArch64CallLowering.h - Call lowering --------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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///
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/// \file
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/// This file describes how to lower LLVM calls to machine code calls.
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///
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_AARCH64_AARCH64CALLLOWERING_H
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#define LLVM_LIB_TARGET_AARCH64_AARCH64CALLLOWERING_H
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#include "llvm/ADT/ArrayRef.h"
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#include "llvm/CodeGen/GlobalISel/CallLowering.h"
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#include "llvm/IR/CallingConv.h"
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#include <cstdint>
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#include <functional>
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namespace llvm {
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class AArch64TargetLowering;
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class CCValAssign;
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class DataLayout;
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class MachineIRBuilder;
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class MachineRegisterInfo;
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class Type;
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class AArch64CallLowering: public CallLowering {
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public:
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AArch64CallLowering(const AArch64TargetLowering &TLI);
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bool lowerReturn(MachineIRBuilder &MIRBuiler, const Value *Val,
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unsigned VReg) const override;
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bool lowerFormalArguments(MachineIRBuilder &MIRBuilder, const Function &F,
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ArrayRef<unsigned> VRegs) const override;
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bool lowerCall(MachineIRBuilder &MIRBuilder, CallingConv::ID CallConv,
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const MachineOperand &Callee, const ArgInfo &OrigRet,
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ArrayRef<ArgInfo> OrigArgs) const override;
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private:
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using RegHandler = std::function<void(MachineIRBuilder &, Type *, unsigned,
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CCValAssign &)>;
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using MemHandler =
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std::function<void(MachineIRBuilder &, int, CCValAssign &)>;
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using SplitArgTy = std::function<void(unsigned, uint64_t)>;
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void splitToValueTypes(const ArgInfo &OrigArgInfo,
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SmallVectorImpl<ArgInfo> &SplitArgs,
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const DataLayout &DL, MachineRegisterInfo &MRI,
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const SplitArgTy &SplitArg) const;
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};
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} // end namespace llvm
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#endif // LLVM_LIB_TARGET_AARCH64_AARCH64CALLLOWERING_H
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