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This pass is very old and quite useless, remove it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23946 91177308-0d34-0410-b5e6-96231b3b80d8
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//===- llvm/Analysis/FindUnsafePointerTypes.h - Unsafe pointers -*- 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 file defines a pass that can be used to determine, interprocedurally,
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// which pointer types are accessed unsafely in a program. If there is an
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// "unsafe" access to a specific pointer type, transformations that depend on
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// type safety cannot be permitted.
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//
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// The result of running this analysis over a program is a set of unsafe pointer
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// types that cannot be transformed. Safe pointer types are not tracked.
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//
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// Additionally, this analysis exports a hidden command line argument that (when
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// enabled) prints out the reasons a type was determined to be unsafe. Just add
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// -printunsafeptrinst to the command line of the tool you want to get it.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_ANALYSIS_UNSAFEPOINTERTYPES_H
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#define LLVM_ANALYSIS_UNSAFEPOINTERTYPES_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 PointerType;
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struct FindUnsafePointerTypes : public ModulePass {
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// UnsafeTypes - Set of types that are not safe to transform.
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std::set<PointerType*> UnsafeTypes;
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public:
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// Accessor for underlying type set...
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inline const std::set<PointerType*> &getUnsafeTypes() const {
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return UnsafeTypes;
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}
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/// run - Inspect the operations that the specified module does on
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/// values of various types. If they are deemed to be 'unsafe' note that the
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/// type is not safe to transform.
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///
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virtual bool runOnModule(Module &M);
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/// print - Loop over the results of the analysis, printing out unsafe types.
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///
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void print(std::ostream &o, const Module *Mod) const;
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/// getAnalysisUsage - Of course, we provide ourself...
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///
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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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@ -17,7 +17,6 @@
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#include "llvm/Analysis/AliasSetTracker.h"
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#include "llvm/Analysis/CallGraph.h"
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#include "llvm/Analysis/FindUnsafePointerTypes.h"
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#include "llvm/Analysis/FindUsedTypes.h"
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#include "llvm/Analysis/IntervalPartition.h"
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#include "llvm/Analysis/PostDominators.h"
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@ -52,7 +51,6 @@ namespace {
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(void)new llvm::PostDominatorSet();
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(void)new llvm::CallGraph();
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(void)new llvm::FindUsedTypes();
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(void)new llvm::FindUnsafePointerTypes();
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(void)new llvm::ScalarEvolution();
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((llvm::Function*)0)->viewCFGOnly();
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llvm::AliasSetTracker X(*(llvm::AliasAnalysis*)0);
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