1//===--- RISCVConstantPoolValue.h - RISC-V constantpool value ---*- C++ -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8//
9// This file implements the RISC-V specific constantpool value class.
10//
11//===----------------------------------------------------------------------===//
12
13#ifndef LLVM_LIB_TARGET_RISCV_RISCVCONSTANTPOOLVALUE_H
14#define LLVM_LIB_TARGET_RISCV_RISCVCONSTANTPOOLVALUE_H
15
16#include "llvm/ADT/StringRef.h"
17#include "llvm/CodeGen/MachineConstantPool.h"
18#include "llvm/Support/Casting.h"
19#include "llvm/Support/ErrorHandling.h"
20
21namespace llvm {
22
23class BlockAddress;
24class GlobalValue;
25class LLVMContext;
26
27/// A RISCV-specific constant pool value.
28class RISCVConstantPoolValue : public MachineConstantPoolValue {
29 const GlobalValue *GV;
30 const StringRef S;
31
32 RISCVConstantPoolValue(Type *Ty, const GlobalValue *GV);
33 RISCVConstantPoolValue(LLVMContext &C, StringRef S);
34
35private:
36 enum class RISCVCPKind { ExtSymbol, GlobalValue };
37 RISCVCPKind Kind;
38
39public:
40 ~RISCVConstantPoolValue() = default;
41
42 static RISCVConstantPoolValue *Create(const GlobalValue *GV);
43 static RISCVConstantPoolValue *Create(LLVMContext &C, StringRef S);
44
45 bool isGlobalValue() const { return Kind == RISCVCPKind::GlobalValue; }
46 bool isExtSymbol() const { return Kind == RISCVCPKind::ExtSymbol; }
47
48 const GlobalValue *getGlobalValue() const { return GV; }
49 StringRef getSymbol() const { return S; }
50
51 int getExistingMachineCPValue(MachineConstantPool *CP,
52 Align Alignment) override;
53
54 void addSelectionDAGCSEId(FoldingSetNodeID &ID) override;
55
56 void print(raw_ostream &O) const override;
57
58 bool equals(const RISCVConstantPoolValue *A) const;
59};
60
61} // end namespace llvm
62
63#endif
64