mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-18 12:29:21 +00:00
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1588 91177308-0d34-0410-b5e6-96231b3b80d8
116 lines
3.8 KiB
C++
116 lines
3.8 KiB
C++
//===-- Module.cpp - Implement the Module class ------------------*- C++ -*--=//
|
|
//
|
|
// This file implements the Module class for the VMCore library.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/Module.h"
|
|
#include "llvm/Method.h"
|
|
#include "llvm/GlobalVariable.h"
|
|
#include "llvm/InstrTypes.h"
|
|
#include "llvm/ValueHolderImpl.h"
|
|
#include "llvm/Type.h"
|
|
#include "llvm/ConstantVals.h"
|
|
#include "Support/STLExtras.h"
|
|
#include <map>
|
|
|
|
// Instantiate Templates - This ugliness is the price we have to pay
|
|
// for having a DefHolderImpl.h file seperate from DefHolder.h! :(
|
|
//
|
|
template class ValueHolder<GlobalVariable, Module, Module>;
|
|
template class ValueHolder<Method, Module, Module>;
|
|
|
|
// Define the GlobalValueRefMap as a struct that wraps a map so that we don't
|
|
// have Module.h depend on <map>
|
|
//
|
|
struct GlobalValueRefMap : public std::map<GlobalValue*, ConstantPointerRef*>{
|
|
};
|
|
|
|
|
|
Module::Module()
|
|
: Value(Type::VoidTy, Value::ModuleVal, ""), SymTabValue(this),
|
|
GlobalList(this, this), MethodList(this, this), GVRefMap(0) {
|
|
}
|
|
|
|
Module::~Module() {
|
|
dropAllReferences();
|
|
GlobalList.delete_all();
|
|
GlobalList.setParent(0);
|
|
MethodList.delete_all();
|
|
MethodList.setParent(0);
|
|
}
|
|
|
|
|
|
// 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
|
|
// references... first all references are dropped, and all use counts go to
|
|
// zero. Then everything is delete'd for real. Note that no operations are
|
|
// valid on an object that has "dropped all references", except operator
|
|
// delete.
|
|
//
|
|
void Module::dropAllReferences() {
|
|
for_each(MethodList.begin(), MethodList.end(),
|
|
std::mem_fun(&Method::dropAllReferences));
|
|
|
|
for_each(GlobalList.begin(), GlobalList.end(),
|
|
std::mem_fun(&GlobalVariable::dropAllReferences));
|
|
|
|
// If there are any GlobalVariable references still out there, nuke them now.
|
|
// Since all references are hereby dropped, nothing could possibly reference
|
|
// them still.
|
|
if (GVRefMap) {
|
|
for (GlobalValueRefMap::iterator I = GVRefMap->begin(), E = GVRefMap->end();
|
|
I != E; ++I) {
|
|
// Delete the ConstantPointerRef node...
|
|
I->second->destroyConstant();
|
|
}
|
|
|
|
// Since the table is empty, we can now delete it...
|
|
delete GVRefMap;
|
|
}
|
|
}
|
|
|
|
// reduceApply - Apply the specified function to all of the methods in this
|
|
// module. The result values are or'd together and the result is returned.
|
|
//
|
|
bool Module::reduceApply(bool (*Func)(GlobalVariable*)) {
|
|
return reduce_apply_bool(gbegin(), gend(), Func);
|
|
}
|
|
bool Module::reduceApply(bool (*Func)(const GlobalVariable*)) const {
|
|
return reduce_apply_bool(gbegin(), gend(), Func);
|
|
}
|
|
bool Module::reduceApply(bool (*Func)(Method*)) {
|
|
return reduce_apply_bool(begin(), end(), Func);
|
|
}
|
|
bool Module::reduceApply(bool (*Func)(const Method*)) const {
|
|
return reduce_apply_bool(begin(), end(), Func);
|
|
}
|
|
|
|
// Accessor for the underlying GlobalValRefMap...
|
|
ConstantPointerRef *Module::getConstantPointerRef(GlobalValue *V){
|
|
// Create ref map lazily on demand...
|
|
if (GVRefMap == 0) GVRefMap = new GlobalValueRefMap();
|
|
|
|
GlobalValueRefMap::iterator I = GVRefMap->find(V);
|
|
if (I != GVRefMap->end()) return I->second;
|
|
|
|
ConstantPointerRef *Ref = new ConstantPointerRef(V);
|
|
GVRefMap->insert(std::make_pair(V, Ref));
|
|
|
|
return Ref;
|
|
}
|
|
|
|
void Module::mutateConstantPointerRef(GlobalValue *OldGV, GlobalValue *NewGV) {
|
|
GlobalValueRefMap::iterator I = GVRefMap->find(OldGV);
|
|
assert(I != GVRefMap->end() &&
|
|
"mutateConstantPointerRef; OldGV not in table!");
|
|
ConstantPointerRef *Ref = I->second;
|
|
|
|
// Remove the old entry...
|
|
GVRefMap->erase(I);
|
|
|
|
// Insert the new entry...
|
|
GVRefMap->insert(std::make_pair(NewGV, Ref));
|
|
}
|