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Use abstract class to facilitate dlopen() interface. 

llvm-svn: 30569
This commit is contained in:
Devang Patel 2006-09-21 17:22:55 +00:00
parent 5d19d59017
commit 5af1651f7d
2 changed files with 25 additions and 7 deletions
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22
llvm/include/llvm/LinkTimeOptimizer.h
View File

@ -75,10 +75,28 @@ namespace llvm {
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*>,

10
llvm/tools/lto/lto.cpp
View File

@ -44,7 +44,7 @@ using namespace llvm;
extern "C"
llvm::LinkTimeOptimizer *createLLVMOptimizer()
{
llvm::LinkTimeOptimizer *l = new llvm::LinkTimeOptimizer();
llvm::LTO *l = new llvm::LTO();
return l;
}
@ -105,7 +105,7 @@ findExternalRefs(Value *value, std::set<std::string> &references,
/// 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;
@ -122,7 +122,7 @@ LinkTimeOptimizer::getModule(const std::string &InputFilename)
/// 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);
@ -135,7 +135,7 @@ LinkTimeOptimizer::getTargetTriple(const std::string &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)
{
@ -310,7 +310,7 @@ static enum LTOStatus lto_optimize(Module *M, std::ostream &Out,
/// 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)
{