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081c34b725
must be called in the pass's constructor. This function uses static dependency declarations to recursively initialize the pass's dependencies. Clients that only create passes through the createFooPass() APIs will require no changes. Clients that want to use the CommandLine options for passes will need to manually call the appropriate initialization functions in PassInitialization.h before parsing commandline arguments. I have tested this with all standard configurations of clang and llvm-gcc on Darwin. It is possible that there are problems with the static dependencies that will only be visible with non-standard options. If you encounter any crash in pass registration/creation, please send the testcase to me directly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116820 91177308-0d34-0410-b5e6-96231b3b80d8
67 lines
1.9 KiB
C++
67 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 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 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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namespace llvm {
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class Type;
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class Value;
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class FindUsedTypes : public ModulePass {
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std::set<const Type *> UsedTypes;
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public:
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static char ID; // Pass identification, replacement for typeid
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FindUsedTypes() : ModulePass(ID) {
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initializeFindUsedTypesPass(*PassRegistry::getPassRegistry());
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}
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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(raw_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 runOnModule(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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};
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} // End llvm namespace
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#endif
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