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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1987 91177308-0d34-0410-b5e6-96231b3b80d8
84 lines
2.6 KiB
C++
84 lines
2.6 KiB
C++
//===-- llvm/Analysis/SlotCalculator.h - Calculate value slots ---*- C++ -*-==//
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//
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// This ModuleAnalyzer subclass calculates the slots that values will land in.
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// This is useful for when writing bytecode or assembly out, because you have
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// to know these things.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_ANALYSIS_SLOTCALCULATOR_H
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#define LLVM_ANALYSIS_SLOTCALCULATOR_H
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#include "llvm/SymTabValue.h"
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#include <vector>
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#include <map>
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class Value;
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class Module;
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class Function;
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class SlotCalculator {
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const Module *TheModule;
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bool IgnoreNamedNodes; // Shall we not count named nodes?
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typedef std::vector<const Value*> TypePlane;
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std::vector<TypePlane> Table;
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std::map<const Value *, unsigned> NodeMap;
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// ModuleLevel - Used to keep track of which values belong to the module,
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// and which values belong to the currently incorporated method.
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//
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std::vector<unsigned> ModuleLevel;
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public:
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SlotCalculator(const Module *M, bool IgnoreNamed);
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// Start out in incorp state
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SlotCalculator(const Function *M, bool IgnoreNamed);
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inline ~SlotCalculator() {}
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// getValSlot returns < 0 on error!
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int getValSlot(const Value *D) const;
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inline unsigned getNumPlanes() const { return Table.size(); }
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inline unsigned getModuleLevel(unsigned Plane) const {
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return Plane < ModuleLevel.size() ? ModuleLevel[Plane] : 0;
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}
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inline const TypePlane &getPlane(unsigned Plane) const {
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return Table[Plane];
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}
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// If you'd like to deal with a method, use these two methods to get its data
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// into the SlotCalculator!
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//
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void incorporateMethod(const Function *F);
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void purgeMethod();
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protected:
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// insertVal - Insert a value into the value table... Return the slot that it
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// occupies, or -1 if the declaration is to be ignored because of the
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// IgnoreNamedNodes flag.
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//
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int insertVal(const Value *D, bool dontIgnore = false);
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// insertValue - Values can be crammed into here at will... if they haven't
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// been inserted already, they get inserted, otherwise they are ignored.
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//
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int insertValue(const Value *D);
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// doInsertVal - Small helper function to be called only be insertVal.
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int doInsertVal(const Value *D);
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// processModule - Process all of the module level method declarations and
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// types that are available.
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//
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void processModule();
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// processSymbolTable - Insert all of the values in the specified symbol table
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// into the values table...
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//
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void processSymbolTable(const SymbolTable *ST);
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void processSymbolTableConstants(const SymbolTable *ST);
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};
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#endif
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