1 //===- lib/Target/AMDGPU/AMDGPUCallLowering.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_AMDGPU_AMDGPUCALLLOWERING_H
16 #define LLVM_LIB_TARGET_AMDGPU_AMDGPUCALLLOWERING_H
19 #include "llvm/CodeGen/GlobalISel/CallLowering.h"
23 class AMDGPUTargetLowering;
25 class AMDGPUCallLowering: public CallLowering {
28 unsigned lowerParameterPtr(MachineIRBuilder &MIRBuilder, Type *ParamTy,
29 unsigned Offset) const;
31 void lowerParameter(MachineIRBuilder &MIRBuilder, Type *ParamTy,
32 unsigned Offset, unsigned DstReg) const;
35 AMDGPUCallLowering(const AMDGPUTargetLowering &TLI);
37 bool lowerReturn(MachineIRBuilder &MIRBuiler, const Value *Val,
38 unsigned VReg) const override;
39 bool lowerFormalArguments(MachineIRBuilder &MIRBuilder, const Function &F,
40 ArrayRef<unsigned> VRegs) const override;
41 static CCAssignFn *CCAssignFnForCall(CallingConv::ID CC, bool IsVarArg);
42 static CCAssignFn *CCAssignFnForReturn(CallingConv::ID CC, bool IsVarArg);
44 } // End of namespace llvm;