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Add an option to this pass. If it is set, we are allowed to internalize
all but main. If it's not set, we can still internalize, but only if an explicit symbol list is provided. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23783 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -41,12 +41,16 @@ namespace {
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class InternalizePass : public ModulePass {
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std::set<std::string> ExternalNames;
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bool DontInternalize;
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public:
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InternalizePass() {
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InternalizePass(bool InternalizeEverything = true) : DontInternalize(false){
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if (!APIFile.empty()) // If a filename is specified, use it
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LoadFile(APIFile.c_str());
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else // Else, if a list is specified, use it.
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else if (!APIList.empty()) // Else, if a list is specified, use it.
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ExternalNames.insert(APIList.begin(), APIList.end());
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else if (!InternalizeEverything)
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// Finally, if we're allowed to, internalize all but main.
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DontInternalize = true;
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}
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void LoadFile(const char *Filename) {
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@ -66,6 +70,8 @@ namespace {
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}
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virtual bool runOnModule(Module &M) {
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if (DontInternalize) return false;
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// If no list or file of symbols was specified, check to see if there is a
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// "main" symbol defined in the module. If so, use it, otherwise do not
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// internalize the module, it must be a library or something.
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@ -117,6 +123,6 @@ namespace {
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RegisterOpt<InternalizePass> X("internalize", "Internalize Global Symbols");
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} // end anonymous namespace
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ModulePass *llvm::createInternalizePass() {
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return new InternalizePass();
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ModulePass *llvm::createInternalizePass(bool InternalizeEverything) {
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return new InternalizePass(InternalizeEverything);
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}
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