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 21 namespace llvm { 22 23 class BlockAddress; 24 class GlobalValue; 25 class LLVMContext; 26 27 /// A RISCV-specific constant pool value. 28 class 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 35 private: 36 enum class RISCVCPKind { ExtSymbol, GlobalValue }; 37 RISCVCPKind Kind; 38 39 public: 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