class Module;
class GlobalValue;
+ class TargetMachine;
enum LTOStatus {
LTO_UNKNOWN,
void mayBeNotUsed();
LLVMSymbol (enum LTOLinkageTypes lt, GlobalValue *g, const std::string &n,
- const std::string &m) : linkage(lt), gv(g), name(n),
- mangledName(m) {}
+ const std::string &m, int a) : linkage(lt), gv(g), name(n),
+ mangledName(m), alignment(a) {}
const char *getName() { return name.c_str(); }
const char *getMangledName() { return mangledName.c_str(); }
+ int getAlignment() { return alignment; }
private:
enum LTOLinkageTypes linkage;
GlobalValue *gv;
std::string name;
std::string mangledName;
+ int alignment;
};
class string_compare {
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 &, bool,
+ const char *) = 0;
+ virtual void getTargetTriple(const std::string &, std::string &) = 0;
+ virtual void removeModule (const std::string &InputFilename) = 0;
+ virtual void printVersion () = 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*>,
std::set<std::string> &references);
enum LTOStatus optimizeModules(const std::string &OutputFilename,
std::vector<const char*> &exportList,
- std::string &targetTriple);
- void getTargetTriple(const std::string &InputFilename, std::string &targetTriple);
+ std::string &targetTriple, bool saveTemps,
+ const char *);
+ void getTargetTriple(const std::string &InputFilename,
+ std::string &targetTriple);
+ void removeModule (const std::string &InputFilename);
+ void printVersion();
+
+ // Constructors and destructors
+ LTO() {
+ /// TODO: Use Target info, it is available at this time.
+ Target = NULL;
+ }
+ ~LTO();
private:
Module *getModule (const std::string &InputFilename);
+ enum LTOStatus optimize(Module *, std::ostream &,
+ std::vector<const char *> &);
+ void getTarget(Module *);
private:
std::vector<Module *> modules;
NameToSymbolMap allSymbols;
NameToModuleMap allModules;
+ TargetMachine *Target;
};
} // End llvm namespace