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Diffstat (limited to 'lib/Target/PIC16/PIC16ConstantPoolValue.h')
-rw-r--r-- | lib/Target/PIC16/PIC16ConstantPoolValue.h | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/lib/Target/PIC16/PIC16ConstantPoolValue.h b/lib/Target/PIC16/PIC16ConstantPoolValue.h new file mode 100644 index 0000000..04d4a17 --- /dev/null +++ b/lib/Target/PIC16/PIC16ConstantPoolValue.h @@ -0,0 +1,75 @@ +//===- PIC16ConstantPoolValue.h - PIC16 constantpool value ------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file implements the PIC16 specific constantpool value class. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_TARGET_PIC16_CONSTANTPOOLVALUE_H +#define LLVM_TARGET_PIC16_CONSTANTPOOLVALUE_H + +#include "llvm/CodeGen/MachineConstantPool.h" + +namespace llvm { + +namespace PIC16CP { + enum PIC16CPKind { + CPValue, + CPNonLazyPtr, + CPStub + }; +} + +/// PIC16ConstantPoolValue - PIC16 specific constantpool value. This is used to +/// represent PC relative displacement between the address of the load +/// instruction and the global value being loaded, i.e. (&GV-(LPIC+8)). +class PIC16ConstantPoolValue : public MachineConstantPoolValue { + GlobalValue *GV; // GlobalValue being loaded. + const char *S; // ExtSymbol being loaded. + unsigned LabelId; // Label id of the load. + PIC16CP::PIC16CPKind Kind; // non_lazy_ptr or stub? + unsigned char PCAdjust; // Extra adjustment if constantpool is pc relative. + // 8 for PIC16 + const char *Modifier; // GV modifier i.e. (&GV(modifier)-(LPIC+8)) + bool AddCurrentAddress; + +public: + PIC16ConstantPoolValue(GlobalValue *gv, unsigned id, + PIC16CP::PIC16CPKind Kind = PIC16CP::CPValue, + unsigned char PCAdj = 0, const char *Modifier = NULL, + bool AddCurrentAddress = false); + PIC16ConstantPoolValue(const char *s, unsigned id, + PIC16CP::PIC16CPKind Kind = PIC16CP::CPValue, + unsigned char PCAdj = 0, const char *Modifier = NULL, + bool AddCurrentAddress = false); + PIC16ConstantPoolValue(GlobalValue *GV, PIC16CP::PIC16CPKind Kind, + const char *Modifier); + + + GlobalValue *getGV() const { return GV; } + const char *getSymbol() const { return S; } + const char *getModifier() const { return Modifier; } + bool hasModifier() const { return Modifier != NULL; } + bool mustAddCurrentAddress() const { return AddCurrentAddress; } + unsigned getLabelId() const { return LabelId; } + bool isNonLazyPointer() const { return Kind == PIC16CP::CPNonLazyPtr; } + bool isStub() const { return Kind == PIC16CP::CPStub; } + unsigned char getPCAdjustment() const { return PCAdjust; } + + virtual int getExistingMachineCPValue(MachineConstantPool *CP, + unsigned Alignment); + + virtual void AddSelectionDAGCSEId(FoldingSetNodeID &ID); + + virtual void print(std::ostream &O) const; +}; + +} + +#endif |