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* Incorporate the contents of SymTabValue into Function and Module

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* Module no longer subclasses Value


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2355 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2002-04-28 04:51:51 +00:00
parent 5240dac674
commit 11aa4770fe
2 changed files with 50 additions and 5 deletions
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28
lib/VMCore/Function.cpp
View File

@ -45,7 +45,8 @@ template class ValueHolder<BasicBlock, Function, Function>;
Function::Function(const FunctionType *Ty, bool isInternal,
const std::string &name)
: GlobalValue(PointerType::get(Ty), Value::FunctionVal, isInternal, name),
SymTabValue(this), BasicBlocks(this), ArgumentList(this, this) {
BasicBlocks(this), ArgumentList(this, this) {
ParentSymTab = SymTab = 0;
}
Function::~Function() {
@ -59,6 +60,7 @@ Function::~Function() {
// Delete all of the method arguments and unlink from symbol table...
ArgumentList.delete_all();
ArgumentList.setParent(0);
delete SymTab;
}
// Specialize setName to take care of symbol table majik
@ -75,7 +77,8 @@ void Function::setParent(Module *parent) {
Parent = parent;
// Relink symbol tables together...
setParentSymTab(Parent ? Parent->getSymbolTableSure() : 0);
ParentSymTab = Parent ? Parent->getSymbolTableSure() : 0;
if (SymTab) SymTab->setParentSymTab(ParentSymTab);
}
const FunctionType *Function::getFunctionType() const {
@ -86,6 +89,27 @@ const Type *Function::getReturnType() const {
return getFunctionType()->getReturnType();
}
SymbolTable *Function::getSymbolTableSure() {
if (!SymTab) SymTab = new SymbolTable(ParentSymTab);
return SymTab;
}
// hasSymbolTable() - Returns true if there is a symbol table allocated to
// this object AND if there is at least one name in it!
//
bool Function::hasSymbolTable() const {
if (!SymTab) return false;
for (SymbolTable::const_iterator I = SymTab->begin();
I != SymTab->end(); ++I) {
if (I->second.begin() != I->second.end())
return true; // Found nonempty type plane!
}
return false;
}
// dropAllReferences() - This function causes all the subinstructions to "let
// go" of all references that they are maintaining. This allows one to
// 'delete' a whole class at a time, even though there may be circular

27
lib/VMCore/Module.cpp
View File

@ -28,9 +28,9 @@ struct GlobalValueRefMap : public std::map<GlobalValue*, ConstantPointerRef*>{
};
Module::Module()
: Value(Type::VoidTy, Value::ModuleVal, ""), SymTabValue(this),
GlobalList(this, this), FunctionList(this, this), GVRefMap(0) {
Module::Module() : GlobalList(this, this), FunctionList(this, this) {
GVRefMap = 0;
SymTab = 0;
}
Module::~Module() {
@ -39,8 +39,29 @@ Module::~Module() {
GlobalList.setParent(0);
FunctionList.delete_all();
FunctionList.setParent(0);
delete SymTab;
}
SymbolTable *Module::getSymbolTableSure() {
if (!SymTab) SymTab = new SymbolTable(0);
return SymTab;
}
// hasSymbolTable() - Returns true if there is a symbol table allocated to
// this object AND if there is at least one name in it!
//
bool Module::hasSymbolTable() const {
if (!SymTab) return false;
for (SymbolTable::const_iterator I = SymTab->begin(), E = SymTab->end();
I != E; ++I)
if (I->second.begin() != I->second.end())
return true; // Found nonempty type plane!
return false;
}
// 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