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bug 122:

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- Module doesn't need to manage ConstantPointerRefs any more.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14931 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Spencer 2004-07-17 23:53:23 +00:00
parent 00dc479613
commit 0f7eea5d04
1 changed files with 0 additions and 45 deletions
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45
lib/VMCore/Module.cpp
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@ -56,17 +56,6 @@ iplist<GlobalVariable> &ilist_traits<GlobalVariable>::getList(Module *M) {
template class SymbolTableListTraits<GlobalVariable, Module, Module>;
template class SymbolTableListTraits<Function, Module, Module>;
// Define the GlobalValueRefMap as a struct that wraps a map so that we don't
// have Module.h depend on <map>
//
namespace llvm {
struct GlobalValueRefMap {
typedef std::map<GlobalValue*, ConstantPointerRef*> MapTy;
typedef MapTy::iterator iterator;
std::map<GlobalValue*, ConstantPointerRef*> Map;
};
}
//===----------------------------------------------------------------------===//
// Primitive Module methods.
//
@ -77,7 +66,6 @@ Module::Module(const std::string &MID)
FunctionList.setParent(this);
GlobalList.setItemParent(this);
GlobalList.setParent(this);
GVRefMap = 0;
SymTab = new SymbolTable();
}
@ -300,38 +288,5 @@ void Module::dropAllReferences() {
for(Module::giterator I = gbegin(), E = gend(); I != E; ++I)
I->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. Note that destroying all of the constant pointer refs will
// eventually cause the GVRefMap field to be set to null (by
// destroyConstantPointerRef, below).
//
while (GVRefMap)
// Delete the ConstantPointerRef node...
GVRefMap->Map.begin()->second->destroyConstant();
}
// 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->Map.find(V);
if (I != GVRefMap->Map.end()) return I->second;
ConstantPointerRef *Ref = new ConstantPointerRef(V);
GVRefMap->Map[V] = Ref;
return Ref;
}
void Module::destroyConstantPointerRef(ConstantPointerRef *CPR) {
assert(GVRefMap && "No map allocated, but we have a CPR?");
if (!GVRefMap->Map.erase(CPR->getValue())) // Remove it from the map...
assert(0 && "ConstantPointerRef not found in module CPR map!");
if (GVRefMap->Map.empty()) { // If the map is empty, delete it.
delete GVRefMap;
GVRefMap = 0;
}
}