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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 2262 : 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
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