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Add an option to this pass. If it is set, we are allowed to internalize

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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
This commit is contained in:
Chris Lattner 2005-10-18 06:29:22 +00:00
parent f9c6105a78
commit a27ea769eb
1 changed files with 10 additions and 4 deletions
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14
lib/Transforms/IPO/Internalize.cpp
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@ -41,12 +41,16 @@ namespace {
class InternalizePass : public ModulePass { class InternalizePass : public ModulePass {
std::set<std::string> ExternalNames; std::set<std::string> ExternalNames;
bool DontInternalize;
public: public:
InternalizePass() { InternalizePass(bool InternalizeEverything = true) : DontInternalize(false){
if (!APIFile.empty()) // If a filename is specified, use it if (!APIFile.empty()) // If a filename is specified, use it
LoadFile(APIFile.c_str()); LoadFile(APIFile.c_str());
else // Else, if a list is specified, use it. else if (!APIList.empty()) // Else, if a list is specified, use it.
ExternalNames.insert(APIList.begin(), APIList.end()); ExternalNames.insert(APIList.begin(), APIList.end());
else if (!InternalizeEverything)
// Finally, if we're allowed to, internalize all but main.
DontInternalize = true;
} }
void LoadFile(const char *Filename) { void LoadFile(const char *Filename) {
@ -66,6 +70,8 @@ namespace {
} }
virtual bool runOnModule(Module &M) { virtual bool runOnModule(Module &M) {
if (DontInternalize) return false;
// If no list or file of symbols was specified, check to see if there is a // If no list or file of symbols was specified, check to see if there is a
// "main" symbol defined in the module. If so, use it, otherwise do not // "main" symbol defined in the module. If so, use it, otherwise do not
// internalize the module, it must be a library or something. // internalize the module, it must be a library or something.
@ -117,6 +123,6 @@ namespace {
RegisterOpt<InternalizePass> X("internalize", "Internalize Global Symbols"); RegisterOpt<InternalizePass> X("internalize", "Internalize Global Symbols");
} // end anonymous namespace } // end anonymous namespace
ModulePass *llvm::createInternalizePass() { ModulePass *llvm::createInternalizePass(bool InternalizeEverything) {
return new InternalizePass(); return new InternalizePass(InternalizeEverything);
} }