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to fix test/Regression/CBackend/2003-10-23-UnusedType.ll. This completely neutered the deadtypeelim pass. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9646 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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// The LLVM Compiler Infrastructure
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//
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// This file was developed by the LLVM research group and is distributed under
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// the University of Illinois Open Source License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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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 Type;
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class FindUsedTypes : public Pass {
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std::set<const Type *> UsedTypes;
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public:
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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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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 print(std::ostream &o, const Module *M) 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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/// IncorporateValue - Incorporate all of the types used by this value.
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///
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void IncorporateValue(const Value *V);
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public:
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/// run - This incorporates all types used by the specified module
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bool run(Module &M);
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/// getAnalysisUsage - We do not modify anything.
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virtual void getAnalysisUsage(AnalysisUsage &AU) const {
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AU.setPreservesAll();
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}
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// stub - dummy function, just ignore it
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static void stub();
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};
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// Make sure that any clients of this file link in PostDominators.cpp
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static IncludeFile
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FIND_USED_TYPES_INCLUDE_FILE((void*)&FindUsedTypes::stub);
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#endif
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