1 //===- AArch64CallLowering.h - Call lowering --------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
11 /// This file describes how to lower LLVM calls to machine code calls.
13 //===----------------------------------------------------------------------===//
15 #ifndef LLVM_LIB_TARGET_AARCH64_AARCH64CALLLOWERING_H
16 #define LLVM_LIB_TARGET_AARCH64_AARCH64CALLLOWERING_H
18 #include "llvm/ADT/ArrayRef.h"
19 #include "llvm/CodeGen/GlobalISel/CallLowering.h"
20 #include "llvm/IR/CallingConv.h"
26 class AArch64TargetLowering;
29 class MachineIRBuilder;
30 class MachineRegisterInfo;
33 class AArch64CallLowering: public CallLowering {
35 AArch64CallLowering(const AArch64TargetLowering &TLI);
37 bool lowerReturn(MachineIRBuilder &MIRBuilder, const Value *Val,
38 ArrayRef<unsigned> VRegs) const override;
40 bool lowerFormalArguments(MachineIRBuilder &MIRBuilder, const Function &F,
41 ArrayRef<unsigned> VRegs) const override;
43 bool lowerCall(MachineIRBuilder &MIRBuilder, CallingConv::ID CallConv,
44 const MachineOperand &Callee, const ArgInfo &OrigRet,
45 ArrayRef<ArgInfo> OrigArgs) const override;
48 using RegHandler = std::function<void(MachineIRBuilder &, Type *, unsigned,
52 std::function<void(MachineIRBuilder &, int, CCValAssign &)>;
54 using SplitArgTy = std::function<void(unsigned, uint64_t)>;
56 void splitToValueTypes(const ArgInfo &OrigArgInfo,
57 SmallVectorImpl<ArgInfo> &SplitArgs,
58 const DataLayout &DL, MachineRegisterInfo &MRI,
59 CallingConv::ID CallConv,
60 const SplitArgTy &SplitArg) const;
63 } // end namespace llvm
65 #endif // LLVM_LIB_TARGET_AARCH64_AARCH64CALLLOWERING_H