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Remove support for the MultiObject flag, which was fundamentally broken

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6840 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2003-06-22 03:03:52 +00:00
parent 5bb8776ece
commit e0f4b98026
4 changed files with 3 additions and 14 deletions
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11
lib/Analysis/DataStructure/DataStructure.cpp
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@ -68,12 +68,6 @@ void DSNode::assertOK() const {
Ty == Type::VoidTy && (Size == 0 ||
(NodeType & DSNode::Array))) &&
"Node not OK!");
// Check to ensure that the multiobject constraints are met...
unsigned Comp = NodeType & DSNode::Composition;
assert((NodeType & DSNode::MultiObject) ||
Comp == 0 || Comp == DSNode::AllocaNode || Comp == DSNode::HeapNode ||
Comp == DSNode::GlobalNode || Comp == DSNode::UnknownNode);
}
/// forwardNode - Mark this node as being obsolete, and all references to it
@ -103,8 +97,6 @@ void DSNode::addGlobal(GlobalValue *GV) {
if (I == Globals.end() || *I != GV) {
//assert(GV->getType()->getElementType() == Ty);
Globals.insert(I, GV);
if (NodeType & DSNode::Composition)
NodeType |= DSNode::MultiObject;
NodeType |= GlobalNode;
}
}
@ -483,9 +475,6 @@ void DSNode::MergeNodes(DSNodeHandle& CurNodeH, DSNodeHandle& NH) {
assert(!CurNodeH.getNode()->isDeadNode());
// Merge the NodeType information...
if ((CurNodeH.getNode()->NodeType & DSNode::Composition) != 0 &&
(N->NodeType & DSNode::Composition) != 0)
N->NodeType |= DSNode::MultiObject; // Multiple composition -> multiobject
CurNodeH.getNode()->NodeType |= N->NodeType;
// Start forwarding to the new node!

4
lib/Analysis/DataStructure/DataStructureAA.cpp
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@ -96,8 +96,8 @@ AliasAnalysis::AliasResult DSAA::alias(const Value *V1, unsigned V1Size,
// Both point to the same node and same offset, and there is only one
// physical memory object represented in the node, return must alias.
if (O1 == O2 && !N1->isMultiObject())
return MustAlias; // Exactly the same object & offset
//if (O1 == O2 && !N1->isMultiObject())
// return MustAlias; // Exactly the same object & offset
// See if they point to different offsets... if so, we may be able to
// determine that they do not alias...

1
lib/Analysis/DataStructure/Printer.cpp
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@ -47,7 +47,6 @@ static std::string getCaption(const DSNode *N, const DSGraph *G) {
if (NodeType & DSNode::Incomplete ) OS << "I";
if (NodeType & DSNode::Modified ) OS << "M";
if (NodeType & DSNode::Read ) OS << "R";
if (NodeType & DSNode::MultiObject) OS << "m";
#ifndef NDEBUG
if (NodeType & DSNode::DEAD ) OS << "<dead>";
#endif

1
lib/Analysis/DataStructure/TopDownClosure.cpp
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@ -45,6 +45,7 @@ bool TDDataStructures::run(Module &M) {
// has no way to extend the lifetime of the pass, which screws up ds-aa.
//
void TDDataStructures::releaseMyMemory() {
return;
for (hash_map<const Function*, DSGraph*>::iterator I = DSInfo.begin(),
E = DSInfo.end(); I != E; ++I)
delete I->second;