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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1595 91177308-0d34-0410-b5e6-96231b3b80d8
63 lines
1.9 KiB
C++
63 lines
1.9 KiB
C++
//===- llvm/Analysis/FindUsedTypes.h - Find all Types in use -----*- C++ -*--=//
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//
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// This pass is used to seek out all of the types in use by the program.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_ANALYSIS_FINDUSEDTYPES_H
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#define LLVM_ANALYSIS_FINDUSEDTYPES_H
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#include "llvm/Pass.h"
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#include <set>
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class SymbolTable;
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class Type;
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class FindUsedTypes : public Pass {
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std::set<const Type *> UsedTypes;
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bool IncludeSymbolTables;
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public:
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// FindUsedTypes ctor - This pass can optionally include types that are
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// referenced only in symbol tables, but the default is not to.
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//
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static AnalysisID ID;
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static AnalysisID IncludeSymbolTableID;
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FindUsedTypes(AnalysisID id) : IncludeSymbolTables(id != ID) {}
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// getTypes - After the pass has been run, return the set containing all of
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// the types used in the module.
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//
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inline const std::set<const Type *> &getTypes() const { return UsedTypes; }
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// Print the types found in the module. If the optional Module parameter is
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// passed in, then the types are printed symbolically if possible, using the
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// symbol table from the module.
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//
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void printTypes(std::ostream &o, const Module *M = 0) const;
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private:
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// IncorporateType - Incorporate one type and all of its subtypes into the
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// collection of used types.
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//
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void IncorporateType(const Type *Ty);
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// IncorporateSymbolTable - Add all types referenced by the specified symtab
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// into the collection of used types.
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//
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void IncorporateSymbolTable(const SymbolTable *ST);
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public:
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// run - This incorporates all types used by the specified module
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//
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bool run(Module *M);
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// getAnalysisUsageInfo - This function needs FindUsedTypes to do its job...
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//
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virtual void getAnalysisUsageInfo(Pass::AnalysisSet &Required,
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Pass::AnalysisSet &Destroyed,
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Pass::AnalysisSet &Provided);
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};
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#endif
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