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74 lines
2.6 KiB
C++
74 lines
2.6 KiB
C++
//===-- llvm/CodeGen/PseudoSourceValue.h ------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains the declaration of the PseudoSourceValue class.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CODEGEN_PSEUDOSOURCEVALUE_H
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#define LLVM_CODEGEN_PSEUDOSOURCEVALUE_H
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#include "llvm/Value.h"
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namespace llvm {
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class MachineFrameInfo;
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class raw_ostream;
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/// PseudoSourceValue - Special value supplied for machine level alias
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/// analysis. It indicates that the a memory access references the functions
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/// stack frame (e.g., a spill slot), below the stack frame (e.g., argument
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/// space), or constant pool.
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class PseudoSourceValue : public Value {
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private:
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/// printCustom - Implement printing for PseudoSourceValue. This is called
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/// from Value::print or Value's operator<<.
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///
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virtual void printCustom(raw_ostream &O) const;
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public:
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PseudoSourceValue();
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/// isConstant - Test whether the memory pointed to by this
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/// PseudoSourceValue has a constant value.
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///
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virtual bool isConstant(const MachineFrameInfo *) const;
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/// classof - Methods for support type inquiry through isa, cast, and
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/// dyn_cast:
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///
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static inline bool classof(const PseudoSourceValue *) { return true; }
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static inline bool classof(const Value *V) {
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return V->getValueID() == PseudoSourceValueVal;
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}
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/// A pseudo source value referencing a fixed stack frame entry,
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/// e.g., a spill slot.
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static const PseudoSourceValue *getFixedStack(int FI);
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/// A pseudo source value referencing the area below the stack frame of
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/// a function, e.g., the argument space.
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static const PseudoSourceValue *getStack();
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/// A pseudo source value referencing the global offset table
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/// (or something the like).
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static const PseudoSourceValue *getGOT();
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/// A pseudo source value referencing the constant pool. Since constant
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/// pools are constant, this doesn't need to identify a specific constant
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/// pool entry.
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static const PseudoSourceValue *getConstantPool();
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/// A pseudo source value referencing a jump table. Since jump tables are
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/// constant, this doesn't need to identify a specific jump table.
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static const PseudoSourceValue *getJumpTable();
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};
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} // End llvm namespace
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#endif
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