Function *ilist_traits<Function>::createSentinel() {
FunctionType *FTy =
- FunctionType::get(Type::VoidTy, std::vector<const Type*>(), false,
- std::vector<FunctionType::ParameterAttributes>() );
+ FunctionType::get(Type::VoidTy, std::vector<const Type*>(), false);
Function *Ret = new Function(FTy, GlobalValue::ExternalLinkage);
// This should not be garbage monitored.
LeakDetector::removeGarbageObject(Ret);
FunctionList.setParent(this);
GlobalList.setItemParent(this);
GlobalList.setParent(this);
- ValSymTab = new SymbolTable();
+ ValSymTab = new ValueSymbolTable();
TypeSymTab = new TypeSymbolTable();
}
return ret;
}
-void Module::setEndianness(Endianness E) {
- if (!DataLayout.empty() && E != AnyEndianness)
- DataLayout += "-";
-
- if (E == LittleEndian)
- DataLayout += "e";
- else if (E == BigEndian)
- DataLayout += "E";
-}
-
/// Target Pointer Size information...
Module::PointerSize Module::getPointerSize() const {
std::string temp = DataLayout;
return ret;
}
-void Module::setPointerSize(PointerSize PS) {
- if (!DataLayout.empty() && PS != AnyPointerSize)
- DataLayout += "-";
-
- if (PS == Pointer32)
- DataLayout += "p:32:32";
- else if (PS == Pointer64)
- DataLayout += "p:64:64";
-}
-
//===----------------------------------------------------------------------===//
// Methods for easy access to the functions in the module.
//
// it. This is nice because it allows most passes to get away with not handling
// the symbol table directly for this common task.
//
-Function *Module::getOrInsertFunction(const std::string &Name,
+Constant *Module::getOrInsertFunction(const std::string &Name,
const FunctionType *Ty) {
- SymbolTable &SymTab = getValueSymbolTable();
+ ValueSymbolTable &SymTab = getValueSymbolTable();
- // See if we have a definitions for the specified function already...
- if (Value *V = SymTab.lookup(PointerType::get(Ty), Name)) {
- return cast<Function>(V); // Yup, got it
- } else { // Nope, add one
+ // See if we have a definition for the specified function already.
+ GlobalValue *F = dyn_cast_or_null<GlobalValue>(SymTab.lookup(Name));
+ if (F == 0) {
+ // Nope, add it
Function *New = new Function(Ty, GlobalVariable::ExternalLinkage, Name);
FunctionList.push_back(New);
- return New; // Return the new prototype...
+ return New; // Return the new prototype.
+ }
+
+ // Okay, the function exists. Does it have externally visible linkage?
+ if (F->hasInternalLinkage()) {
+ // Rename the function.
+ F->setName(SymTab.getUniqueName(F->getName()));
+ // Retry, now there won't be a conflict.
+ return getOrInsertFunction(Name, Ty);
}
+
+ // If the function exists but has the wrong type, return a bitcast to the
+ // right type.
+ if (F->getType() != PointerType::get(Ty))
+ return ConstantExpr::getBitCast(F, PointerType::get(Ty));
+
+ // Otherwise, we just found the existing function or a prototype.
+ return F;
}
// getOrInsertFunction - Look up the specified function in the module symbol
// This version of the method takes a null terminated list of function
// arguments, which makes it easier for clients to use.
//
-Function *Module::getOrInsertFunction(const std::string &Name,
+Constant *Module::getOrInsertFunction(const std::string &Name,
const Type *RetTy, ...) {
va_list Args;
va_start(Args, RetTy);
// getFunction - Look up the specified function in the module symbol table.
// If it does not exist, return null.
//
-Function *Module::getFunction(const std::string &Name, const FunctionType *Ty) {
- SymbolTable &SymTab = getValueSymbolTable();
- return cast_or_null<Function>(SymTab.lookup(PointerType::get(Ty), Name));
-}
-
-
-/// getMainFunction - This function looks up main efficiently. This is such a
-/// common case, that it is a method in Module. If main cannot be found, a
-/// null pointer is returned.
-///
-Function *Module::getMainFunction() {
- std::vector<const Type*> Params;
-
- // int main(void)...
- if (Function *F = getFunction("main", FunctionType::get(Type::Int32Ty,
- Params, false)))
- return F;
-
- // void main(void)...
- if (Function *F = getFunction("main", FunctionType::get(Type::VoidTy,
- Params, false)))
- return F;
-
- Params.push_back(Type::Int32Ty);
-
- // int main(int argc)...
- if (Function *F = getFunction("main", FunctionType::get(Type::Int32Ty,
- Params, false)))
- return F;
-
- // void main(int argc)...
- if (Function *F = getFunction("main", FunctionType::get(Type::VoidTy,
- Params, false)))
- return F;
-
- for (unsigned i = 0; i != 2; ++i) { // Check argv and envp
- Params.push_back(PointerType::get(PointerType::get(Type::Int8Ty)));
-
- // int main(int argc, char **argv)...
- if (Function *F = getFunction("main", FunctionType::get(Type::Int32Ty,
- Params, false)))
- return F;
-
- // void main(int argc, char **argv)...
- if (Function *F = getFunction("main", FunctionType::get(Type::VoidTy,
- Params, false)))
- return F;
- }
-
- // Ok, try to find main the hard way...
- return getNamedFunction("main");
-}
-
-/// getNamedFunction - Return the first function in the module with the
-/// specified name, of arbitrary type. This method returns null if a function
-/// with the specified name is not found.
-///
-Function *Module::getNamedFunction(const std::string &Name) const {
- // Loop over all of the functions, looking for the function desired
- const Function *Found = 0;
- for (const_iterator I = begin(), E = end(); I != E; ++I)
- if (I->getName() == Name)
- if (I->isExternal())
- Found = I;
- else
- return const_cast<Function*>(&(*I));
- return const_cast<Function*>(Found); // Non-external function not found...
+Function *Module::getFunction(const std::string &Name) const {
+ const ValueSymbolTable &SymTab = getValueSymbolTable();
+ return dyn_cast_or_null<Function>(SymTab.lookup(Name));
}
//===----------------------------------------------------------------------===//
/// have InternalLinkage. By default, these types are not returned.
///
GlobalVariable *Module::getGlobalVariable(const std::string &Name,
- const Type *Ty, bool AllowInternal) {
- if (Value *V = getValueSymbolTable().lookup(PointerType::get(Ty), Name)) {
- GlobalVariable *Result = cast<GlobalVariable>(V);
- if (AllowInternal || !Result->hasInternalLinkage())
+ bool AllowInternal) const {
+ if (Value *V = ValSymTab->lookup(Name)) {
+ GlobalVariable *Result = dyn_cast<GlobalVariable>(V);
+ if (Result && (AllowInternal || !Result->hasInternalLinkage()))
return Result;
}
return 0;
}
-/// getNamedGlobal - Return the first global variable in the module with the
-/// specified name, of arbitrary type. This method returns null if a global
-/// with the specified name is not found.
-///
-GlobalVariable *Module::getNamedGlobal(const std::string &Name) const {
- // FIXME: This would be much faster with a symbol table that doesn't
- // discriminate based on type!
- for (const_global_iterator I = global_begin(), E = global_end();
- I != E; ++I)
- if (I->getName() == Name)
- return const_cast<GlobalVariable*>(&(*I));
- return 0;
-}
-
-
-
//===----------------------------------------------------------------------===//
// Methods for easy access to the types in the module.
//
I->dropAllReferences();
}
+void Module::addLibrary(const std::string& Lib) {
+ for (Module::lib_iterator I = lib_begin(), E = lib_end(); I != E; ++I)
+ if (*I == Lib)
+ return;
+ LibraryList.push_back(Lib);
+}
+
+void Module::removeLibrary(const std::string& Lib) {
+ LibraryListType::iterator I = LibraryList.begin();
+ LibraryListType::iterator E = LibraryList.end();
+ for (;I != E; ++I)
+ if (*I == Lib) {
+ LibraryList.erase(I);
+ return;
+ }
+}
+
projects / oota-llvm.git / blobdiff