#include "llvm/IR/Value.h"
namespace llvm {
- class MachineFrameInfo;
- class MachineMemOperand;
- class raw_ostream;
-
- raw_ostream &operator<<(raw_ostream &OS, const MachineMemOperand &MMO);
-
- /// PseudoSourceValue - Special value supplied for machine level alias
- /// analysis. It indicates that 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 {
- private:
- friend class MachineMemOperand; // For printCustom().
-
- /// printCustom - Implement printing for PseudoSourceValue. This is called
- /// from Value::print or Value's operator<<.
- ///
- virtual void printCustom(raw_ostream &O) const;
-
- public:
- /// isFixed - Whether this is a FixedStackPseudoSourceValue.
- bool isFixed;
-
- explicit PseudoSourceValue(bool isFixed = false);
-
- virtual ~PseudoSourceValue();
-
- /// isConstant - Test whether the memory pointed to by this
- /// PseudoSourceValue has a constant value.
- ///
- virtual bool isConstant(const MachineFrameInfo *) const;
-
- /// isAliased - Test whether the memory pointed to by this
- /// PseudoSourceValue may also be pointed to by an LLVM IR Value.
- virtual bool isAliased(const MachineFrameInfo *) const;
-
- /// mayAlias - Return true if the memory pointed to by this
- /// PseudoSourceValue can ever alias an LLVM IR Value.
- virtual bool mayAlias(const MachineFrameInfo *) const;
-
- /// A pseudo source value referencing a fixed stack frame entry,
- /// e.g., a spill slot.
- static const PseudoSourceValue *getFixedStack(int FI);
-
- /// A pseudo source value referencing the area below the stack frame of
- /// a function, e.g., the argument space.
- static const PseudoSourceValue *getStack();
-
- /// A pseudo source value referencing the global offset table
- /// (or something the like).
- static const PseudoSourceValue *getGOT();
-
- /// A pseudo source value referencing the constant pool. Since constant
- /// pools are constant, this doesn't need to identify a specific constant
- /// pool entry.
- static const PseudoSourceValue *getConstantPool();
-
- /// A pseudo source value referencing a jump table. Since jump tables are
- /// constant, this doesn't need to identify a specific jump table.
- static const PseudoSourceValue *getJumpTable();
- };
-
- /// FixedStackPseudoSourceValue - A specialized PseudoSourceValue
- /// for holding FixedStack values, which must include a frame
- /// index.
- class FixedStackPseudoSourceValue : public PseudoSourceValue {
- const int FI;
- public:
- explicit FixedStackPseudoSourceValue(int fi) :
- PseudoSourceValue(true), FI(fi) {}
-
- /// classof - Methods for support type inquiry through isa, cast, and
- /// dyn_cast:
- ///
- static inline bool classof(const PseudoSourceValue *V) {
- return V->isFixed == true;
- }
-
- bool isConstant(const MachineFrameInfo *MFI) const override;
-
- bool isAliased(const MachineFrameInfo *MFI) const override;
-
- bool mayAlias(const MachineFrameInfo *) const override;
-
- void printCustom(raw_ostream &OS) const override;
-
- int getFrameIndex() const { return FI; }
- };
+class MachineFrameInfo;
+class MachineMemOperand;
+class raw_ostream;
+
+raw_ostream &operator<<(raw_ostream &OS, const MachineMemOperand &MMO);
+
+/// PseudoSourceValue - Special value supplied for machine level alias
+/// analysis. It indicates that 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 {
+private:
+ friend class MachineMemOperand; // For printCustom().
+
+ /// printCustom - Implement printing for PseudoSourceValue. This is called
+ /// from Value::print or Value's operator<<.
+ ///
+ virtual void printCustom(raw_ostream &O) const;
+
+public:
+ /// isFixed - Whether this is a FixedStackPseudoSourceValue.
+ bool isFixed;
+
+ explicit PseudoSourceValue(bool isFixed = false);
+
+ virtual ~PseudoSourceValue();
+
+ /// isConstant - Test whether the memory pointed to by this
+ /// PseudoSourceValue has a constant value.
+ ///
+ virtual bool isConstant(const MachineFrameInfo *) const;
+
+ /// isAliased - Test whether the memory pointed to by this
+ /// PseudoSourceValue may also be pointed to by an LLVM IR Value.
+ virtual bool isAliased(const MachineFrameInfo *) const;
+
+ /// mayAlias - Return true if the memory pointed to by this
+ /// PseudoSourceValue can ever alias an LLVM IR Value.
+ virtual bool mayAlias(const MachineFrameInfo *) const;
+
+ /// A pseudo source value referencing a fixed stack frame entry,
+ /// e.g., a spill slot.
+ static const PseudoSourceValue *getFixedStack(int FI);
+
+ /// A pseudo source value referencing the area below the stack frame of
+ /// a function, e.g., the argument space.
+ static const PseudoSourceValue *getStack();
+
+ /// A pseudo source value referencing the global offset table
+ /// (or something the like).
+ static const PseudoSourceValue *getGOT();
+
+ /// A pseudo source value referencing the constant pool. Since constant
+ /// pools are constant, this doesn't need to identify a specific constant
+ /// pool entry.
+ static const PseudoSourceValue *getConstantPool();
+
+ /// A pseudo source value referencing a jump table. Since jump tables are
+ /// constant, this doesn't need to identify a specific jump table.
+ static const PseudoSourceValue *getJumpTable();
+};
+
+/// FixedStackPseudoSourceValue - A specialized PseudoSourceValue
+/// for holding FixedStack values, which must include a frame
+/// index.
+class FixedStackPseudoSourceValue : public PseudoSourceValue {
+ const int FI;
+
+public:
+ explicit FixedStackPseudoSourceValue(int fi)
+ : PseudoSourceValue(true), FI(fi) {}
+
+ /// classof - Methods for support type inquiry through isa, cast, and
+ /// dyn_cast:
+ ///
+ static inline bool classof(const PseudoSourceValue *V) {
+ return V->isFixed == true;
+ }
+
+ bool isConstant(const MachineFrameInfo *MFI) const override;
+
+ bool isAliased(const MachineFrameInfo *MFI) const override;
+
+ bool mayAlias(const MachineFrameInfo *) const override;
+
+ void printCustom(raw_ostream &OS) const override;
+
+ int getFrameIndex() const { return FI; }
+};
} // End llvm namespace
#endif
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