| //===-- llvm/CodeGen/PseudoSourceValue.h ------------------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file contains the declaration of the PseudoSourceValue class. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_CODEGEN_PSEUDOSOURCEVALUE_H |
| #define LLVM_CODEGEN_PSEUDOSOURCEVALUE_H |
| |
| #include "llvm/Value.h" |
| |
| namespace llvm { |
| class MachineFrameInfo; |
| class raw_ostream; |
| |
| /// PseudoSourceValue - Special value supplied for machine level alias |
| /// analysis. It indicates that the a memory access references the functions |
| /// stack frame (e.g., a spill slot), below the stack frame (e.g., argument |
| /// space), or constant pool. |
| class PseudoSourceValue : public Value { |
| public: |
| PseudoSourceValue(); |
| |
| /// dump - Support for debugging, callable in GDB: V->dump() |
| // |
| virtual void dump() const; |
| |
| /// print - Implement operator<< on PseudoSourceValue. |
| /// |
| virtual void print(raw_ostream &OS) const; |
| |
| /// isConstant - Test whether this PseudoSourceValue has a constant value. |
| /// |
| virtual bool isConstant(const MachineFrameInfo *) const; |
| |
| /// classof - Methods for support type inquiry through isa, cast, and |
| /// dyn_cast: |
| /// |
| static inline bool classof(const PseudoSourceValue *) { return true; } |
| static inline bool classof(const Value *V) { |
| return V->getValueID() == PseudoSourceValueVal; |
| } |
| |
| /// A pseudo source value referencing a fixed stack frame entry, |
| /// e.g., a spill slot. |
| static const PseudoSourceValue *getFixedStack(int FI); |
| |
| /// A source value referencing the area below the stack frame of a function, |
| /// e.g., the argument space. |
| static const PseudoSourceValue *getStack(); |
| |
| /// A source value referencing the global offset table (or something the |
| /// like). |
| static const PseudoSourceValue *getGOT(); |
| |
| /// A SV referencing the constant pool |
| static const PseudoSourceValue *getConstantPool(); |
| |
| /// A SV referencing the jump table |
| static const PseudoSourceValue *getJumpTable(); |
| }; |
| } // End llvm namespace |
| |
| #endif |