1 //===- lib/Target/AMDGPU/AMDGPUCallLowering.h - Call lowering -*- C++ -*---===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 /// 10 /// \file 11 /// This file describes how to lower LLVM calls to machine code calls. 12 /// 13 //===----------------------------------------------------------------------===// 14 15 #ifndef LLVM_LIB_TARGET_AMDGPU_AMDGPUCALLLOWERING_H 16 #define LLVM_LIB_TARGET_AMDGPU_AMDGPUCALLLOWERING_H 17 18 #include "AMDGPU.h" 19 #include "llvm/CodeGen/GlobalISel/CallLowering.h" 20 21 namespace llvm { 22 23 class AMDGPUTargetLowering; 24 25 class AMDGPUCallLowering: public CallLowering { 26 AMDGPUAS AMDGPUASI; 27 28 unsigned lowerParameterPtr(MachineIRBuilder &MIRBuilder, Type *ParamTy, 29 uint64_t Offset) const; 30 31 void lowerParameter(MachineIRBuilder &MIRBuilder, Type *ParamTy, 32 uint64_t Offset, unsigned Align, 33 unsigned DstReg) const; 34 35 public: 36 AMDGPUCallLowering(const AMDGPUTargetLowering &TLI); 37 38 bool lowerReturn(MachineIRBuilder &MIRBuiler, const Value *Val, 39 unsigned VReg) const override; 40 bool lowerFormalArguments(MachineIRBuilder &MIRBuilder, const Function &F, 41 ArrayRef<unsigned> VRegs) const override; 42 static CCAssignFn *CCAssignFnForCall(CallingConv::ID CC, bool IsVarArg); 43 static CCAssignFn *CCAssignFnForReturn(CallingConv::ID CC, bool IsVarArg); 44 }; 45 } // End of namespace llvm; 46 #endif 47