//
// The LLVM Compiler Infrastructure
//
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
#include <algorithm>
#include <cstdarg>
#include <cstdlib>
-#include <map>
using namespace llvm;
//===----------------------------------------------------------------------===//
Function *ilist_traits<Function>::createSentinel() {
FunctionType *FTy =
- FunctionType::get(Type::VoidTy, std::vector<const Type*>(), false,
- std::vector<FunctionType::ParameterAttributes>() );
- Function *Ret = new Function(FTy, GlobalValue::ExternalLinkage);
+ FunctionType::get(Type::VoidTy, std::vector<const Type*>(), false);
+ Function *Ret = Function::Create(FTy, GlobalValue::ExternalLinkage);
// This should not be garbage monitored.
LeakDetector::removeGarbageObject(Ret);
return Ret;
LeakDetector::removeGarbageObject(Ret);
return Ret;
}
+GlobalAlias *ilist_traits<GlobalAlias>::createSentinel() {
+ GlobalAlias *Ret = new GlobalAlias(Type::Int32Ty,
+ GlobalValue::ExternalLinkage);
+ // This should not be garbage monitored.
+ LeakDetector::removeGarbageObject(Ret);
+ return Ret;
+}
iplist<Function> &ilist_traits<Function>::getList(Module *M) {
return M->getFunctionList();
iplist<GlobalVariable> &ilist_traits<GlobalVariable>::getList(Module *M) {
return M->getGlobalList();
}
+iplist<GlobalAlias> &ilist_traits<GlobalAlias>::getList(Module *M) {
+ return M->getAliasList();
+}
// Explicit instantiations of SymbolTableListTraits since some of the methods
// are not in the public header file.
-template class SymbolTableListTraits<GlobalVariable, Module, Module>;
-template class SymbolTableListTraits<Function, Module, Module>;
+template class SymbolTableListTraits<GlobalVariable, Module>;
+template class SymbolTableListTraits<Function, Module>;
+template class SymbolTableListTraits<GlobalAlias, Module>;
//===----------------------------------------------------------------------===//
// Primitive Module methods.
Module::Module(const std::string &MID)
: ModuleID(MID), DataLayout("") {
- FunctionList.setItemParent(this);
- FunctionList.setParent(this);
- GlobalList.setItemParent(this);
- GlobalList.setParent(this);
- ValSymTab = new SymbolTable();
+ ValSymTab = new ValueSymbolTable();
TypeSymTab = new TypeSymbolTable();
}
Module::~Module() {
dropAllReferences();
GlobalList.clear();
- GlobalList.setParent(0);
FunctionList.clear();
- FunctionList.setParent(0);
+ AliasList.clear();
LibraryList.clear();
delete ValSymTab;
delete TypeSymTab;
}
-// Module::dump() - Allow printing from debugger
-void Module::dump() const {
- print(*cerr.stream());
-}
-
/// Target endian information...
Module::Endianness Module::getEndianness() const {
std::string temp = DataLayout;
// Methods for easy access to the functions in the module.
//
+// getOrInsertFunction - Look up the specified function in the module symbol
+// table. If it does not exist, add a prototype for the function and return
+// it. This is nice because it allows most passes to get away with not handling
+// the symbol table directly for this common task.
+//
Constant *Module::getOrInsertFunction(const std::string &Name,
- const FunctionType *Ty) {
- SymbolTable &SymTab = getValueSymbolTable();
+ const FunctionType *Ty,
+ AttrListPtr AttributeList) {
+ ValueSymbolTable &SymTab = getValueSymbolTable();
- // See if we have a definitions for the specified function already.
- Function *F =
- dyn_cast_or_null<Function>(SymTab.lookup(PointerType::get(Ty), Name));
+ // 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);
+ // Nope, add it
+ Function *New = Function::Create(Ty, GlobalVariable::ExternalLinkage, Name);
+ if (!New->isIntrinsic()) // Intrinsics get attrs set on construction
+ New->setAttributes(AttributeList);
FunctionList.push_back(New);
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->getType(), F->getName()));
+ if (F->hasLocalLinkage()) {
+ // Clear the function's name.
+ F->setName("");
// Retry, now there won't be a conflict.
- return getOrInsertFunction(Name, Ty);
+ Constant *NewF = getOrInsertFunction(Name, Ty);
+ F->setName(&Name[0], Name.size());
+ return NewF;
}
// If the function exists but has the wrong type, return a bitcast to the
// right type.
- if (F->getFunctionType() != Ty)
- return ConstantExpr::getBitCast(F, PointerType::get(Ty));
+ if (F->getType() != PointerType::getUnqual(Ty))
+ return ConstantExpr::getBitCast(F, PointerType::getUnqual(Ty));
// Otherwise, we just found the existing function or a prototype.
return F;
}
+Constant *Module::getOrInsertTargetIntrinsic(const std::string &Name,
+ const FunctionType *Ty,
+ AttrListPtr AttributeList) {
+ ValueSymbolTable &SymTab = getValueSymbolTable();
+
+ // 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 = Function::Create(Ty, GlobalVariable::ExternalLinkage, Name);
+ New->setAttributes(AttributeList);
+ FunctionList.push_back(New);
+ return New; // Return the new prototype.
+ }
+
+ // Otherwise, we just found the existing function or a prototype.
+ return F;
+}
+
+Constant *Module::getOrInsertFunction(const std::string &Name,
+ const FunctionType *Ty) {
+ AttrListPtr AttributeList = AttrListPtr::get((AttributeWithIndex *)0, 0);
+ return getOrInsertFunction(Name, Ty, AttributeList);
+}
+
// getOrInsertFunction - Look up the specified function in the module symbol
// table. If it does not exist, add a prototype for the function and return it.
// This version of the method takes a null terminated list of function
// arguments, which makes it easier for clients to use.
//
Constant *Module::getOrInsertFunction(const std::string &Name,
+ AttrListPtr AttributeList,
const Type *RetTy, ...) {
va_list Args;
va_start(Args, RetTy);
va_end(Args);
// Build the function type and chain to the other getOrInsertFunction...
- return getOrInsertFunction(Name, FunctionType::get(RetTy, ArgTys, false));
+ return getOrInsertFunction(Name, FunctionType::get(RetTy, ArgTys, false),
+ AttributeList);
}
+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));
-}
+ // Build the list of argument types...
+ std::vector<const Type*> ArgTys;
+ while (const Type *ArgTy = va_arg(Args, const Type*))
+ ArgTys.push_back(ArgTy);
+ va_end(Args);
-/// 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;
- }
+ // Build the function type and chain to the other getOrInsertFunction...
+ return getOrInsertFunction(Name, FunctionType::get(RetTy, ArgTys, false),
+ AttrListPtr::get((AttributeWithIndex *)0, 0));
+}
- // Ok, try to find main the hard way...
- return getNamedFunction("main");
+// 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 {
+ const ValueSymbolTable &SymTab = getValueSymbolTable();
+ return dyn_cast_or_null<Function>(SymTab.lookup(Name));
}
-/// 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->isDeclaration())
- Found = I;
- else
- return const_cast<Function*>(&(*I));
- return const_cast<Function*>(Found); // Non-external function not found...
+Function *Module::getFunction(const char *Name) const {
+ const ValueSymbolTable &SymTab = getValueSymbolTable();
+ return dyn_cast_or_null<Function>(SymTab.lookup(Name, Name+strlen(Name)));
}
//===----------------------------------------------------------------------===//
/// symbol table. If it does not exist, return null. The type argument
/// should be the underlying type of the global, i.e., it should not have
/// the top-level PointerType, which represents the address of the global.
-/// If AllowInternal is set to true, this function will return types that
-/// have InternalLinkage. By default, these types are not returned.
+/// If AllowLocal is set to true, this function will return types that
+/// have an local. 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 AllowLocal) const {
+ if (Value *V = ValSymTab->lookup(Name)) {
+ GlobalVariable *Result = dyn_cast<GlobalVariable>(V);
+ if (Result && (AllowLocal || !Result->hasLocalLinkage()))
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;
+/// getOrInsertGlobal - Look up the specified global in the module symbol table.
+/// 1. If it does not exist, add a declaration of the global and return it.
+/// 2. Else, the global exists but has the wrong type: return the function
+/// with a constantexpr cast to the right type.
+/// 3. Finally, if the existing global is the correct delclaration, return the
+/// existing global.
+Constant *Module::getOrInsertGlobal(const std::string &Name, const Type *Ty) {
+ ValueSymbolTable &SymTab = getValueSymbolTable();
+
+ // See if we have a definition for the specified global already.
+ GlobalVariable *GV = dyn_cast_or_null<GlobalVariable>(SymTab.lookup(Name));
+ if (GV == 0) {
+ // Nope, add it
+ GlobalVariable *New =
+ new GlobalVariable(Ty, false, GlobalVariable::ExternalLinkage, 0, Name);
+ GlobalList.push_back(New);
+ return New; // Return the new declaration.
+ }
+
+ // If the variable exists but has the wrong type, return a bitcast to the
+ // right type.
+ if (GV->getType() != PointerType::getUnqual(Ty))
+ return ConstantExpr::getBitCast(GV, PointerType::getUnqual(Ty));
+
+ // Otherwise, we just found the existing function or a prototype.
+ return GV;
}
+//===----------------------------------------------------------------------===//
+// Methods for easy access to the global variables in the module.
+//
+// getNamedAlias - Look up the specified global in the module symbol table.
+// If it does not exist, return null.
+//
+GlobalAlias *Module::getNamedAlias(const std::string &Name) const {
+ const ValueSymbolTable &SymTab = getValueSymbolTable();
+ return dyn_cast_or_null<GlobalAlias>(SymTab.lookup(Name));
+}
//===----------------------------------------------------------------------===//
// Methods for easy access to the types in the module.
for(Module::global_iterator I = global_begin(), E = global_end(); I != E; ++I)
I->dropAllReferences();
+
+ for(Module::alias_iterator I = alias_begin(), E = alias_end(); I != E; ++I)
+ I->dropAllReferences();
}
void Module::addLibrary(const std::string& Lib) {
return;
}
}
-