return (strcmp(left, right) == 0);
}
};
-
+
+ /// This is abstract class to facilitate dlopen() interface.
+ /// See LTO below for more info.
+ class LinkTimeOptimizer {
+ public:
+ typedef hash_map<const char*, LLVMSymbol*, hash<const char*>,
+ string_compare> NameToSymbolMap;
+ typedef hash_map<const char*, Module*, hash<const char*>,
+ string_compare> NameToModuleMap;
+ virtual enum LTOStatus readLLVMObjectFile(const std::string &,
+ NameToSymbolMap &,
+ std::set<std::string> &) = 0;
+ virtual enum LTOStatus optimizeModules(const std::string &,
+ std::vector<const char*> &,
+ std::string &) = 0;
+ virtual void getTargetTriple(const std::string &, std::string &) = 0;
+ virtual ~LinkTimeOptimizer() = 0;
+ };
+
/// This is the main link time optimization class. It exposes simple API
/// to perform link time optimization using LLVM intermodular optimizer.
- class LinkTimeOptimizer {
+ class LTO : public LinkTimeOptimizer {
public:
typedef hash_map<const char*, LLVMSymbol*, hash<const char*>,
extern "C"
llvm::LinkTimeOptimizer *createLLVMOptimizer()
{
- llvm::LinkTimeOptimizer *l = new llvm::LinkTimeOptimizer();
+ llvm::LTO *l = new llvm::LTO();
return l;
}
/// InputFilename is a LLVM bytecode file. If Module with InputFilename is
/// available then return it. Otherwise parseInputFilename.
Module *
-LinkTimeOptimizer::getModule(const std::string &InputFilename)
+LTO::getModule(const std::string &InputFilename)
{
Module *m = NULL;
/// InputFilename is a LLVM bytecode file. Reade this bytecode file and
/// set corresponding target triplet string.
void
-LinkTimeOptimizer::getTargetTriple(const std::string &InputFilename,
+LTO::getTargetTriple(const std::string &InputFilename,
std::string &targetTriple)
{
Module *m = getModule(InputFilename);
/// Collect external references in references vector.
/// Return LTO_READ_SUCCESS if there is no error.
enum LTOStatus
-LinkTimeOptimizer::readLLVMObjectFile(const std::string &InputFilename,
+LTO::readLLVMObjectFile(const std::string &InputFilename,
NameToSymbolMap &symbols,
std::set<std::string> &references)
{
/// native object file using OutputFilename
/// Return appropriate LTOStatus.
enum LTOStatus
-LinkTimeOptimizer::optimizeModules(const std::string &OutputFilename,
+LTO::optimizeModules(const std::string &OutputFilename,
std::vector<const char *> &exportList,
std::string &targetTriple)
{