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Make data structure acurately get ALL edges, even loads of null fields of

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nodes that are not shadow nodes


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2273 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2002-04-17 03:24:47 +00:00
parent 4a94a70250
commit a146183c21
2 changed files with 24 additions and 20 deletions
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22
include/llvm/Analysis/DataStructure.h
View File

@ -20,6 +20,7 @@ class GlobalValue;
class FunctionDSGraph;
class DataStructure;
class DSNodeIterator;
class ShadowDSNode;
// FIXME: move this somewhere private
unsigned countPointerFields(const Type *Ty);
@ -113,6 +114,8 @@ class DSNode {
std::vector<PointerValSet> FieldLinks;
std::vector<Value*> Pointers; // Values pointing to me...
std::vector<PointerValSet*> Referrers;
std::vector<std::pair<const Type *, ShadowDSNode *> > SynthNodes;
DSNode(const DSNode &); // DO NOT IMPLEMENT
void operator=(const DSNode &); // DO NOT IMPLEMENT
@ -186,6 +189,10 @@ public:
return New;
}
// synthesizeNode - Create a new shadow node that is to be linked into this
// chain..
//
ShadowDSNode *synthesizeNode(const Type *Ty, FunctionRepBuilder *Rep);
virtual void dropAllReferences() {
FieldLinks.clear();
@ -320,30 +327,25 @@ private:
//
class ShadowDSNode : public DSNode {
friend class FunctionDSGraph;
friend class FunctionRepBuilder;
Module *Mod;
ShadowDSNode *ShadowParent; // Nonnull if this is a synthesized node...
std::vector<std::pair<const Type *, ShadowDSNode *> > SynthNodes;
DSNode *ShadowParent; // Nonnull if this is a synthesized node...
public:
ShadowDSNode(const Type *Ty, Module *M);
virtual std::string getCaption() const;
// synthesizeNode - Create a new shadow node that is to be linked into this
// chain..
//
ShadowDSNode *synthesizeNode(const Type *Ty, FunctionRepBuilder *Rep);
// isEquivalentTo - Return true if the nodes should be merged...
virtual bool isEquivalentTo(DSNode *Node) const;
DSNode *getShadowParent() const { return ShadowParent; }
// Support type inquiry through isa, cast, and dyn_cast...
static bool classof(const ShadowDSNode *) { return true; }
static bool classof(const DSNode *N) { return N->NodeType == ShadowNode; }
private:
ShadowDSNode(const Type *Ty, Module *M, ShadowDSNode *ShadParent);
ShadowDSNode(const Type *Ty, Module *M, DSNode *ShadParent);
protected:
virtual void mapNode(std::map<const DSNode*, DSNode*> &NodeMap,
const DSNode *Old);
virtual ShadowDSNode *cloneImpl() const {
if (ShadowParent)
return new ShadowDSNode(getType(), Mod, ShadowParent);

22
include/llvm/Analysis/DataStructure/DataStructure.h
View File

@ -20,6 +20,7 @@ class GlobalValue;
class FunctionDSGraph;
class DataStructure;
class DSNodeIterator;
class ShadowDSNode;
// FIXME: move this somewhere private
unsigned countPointerFields(const Type *Ty);
@ -113,6 +114,8 @@ class DSNode {
std::vector<PointerValSet> FieldLinks;
std::vector<Value*> Pointers; // Values pointing to me...
std::vector<PointerValSet*> Referrers;
std::vector<std::pair<const Type *, ShadowDSNode *> > SynthNodes;
DSNode(const DSNode &); // DO NOT IMPLEMENT
void operator=(const DSNode &); // DO NOT IMPLEMENT
@ -186,6 +189,10 @@ public:
return New;
}
// synthesizeNode - Create a new shadow node that is to be linked into this
// chain..
//
ShadowDSNode *synthesizeNode(const Type *Ty, FunctionRepBuilder *Rep);
virtual void dropAllReferences() {
FieldLinks.clear();
@ -320,30 +327,25 @@ private:
//
class ShadowDSNode : public DSNode {
friend class FunctionDSGraph;
friend class FunctionRepBuilder;
Module *Mod;
ShadowDSNode *ShadowParent; // Nonnull if this is a synthesized node...
std::vector<std::pair<const Type *, ShadowDSNode *> > SynthNodes;
DSNode *ShadowParent; // Nonnull if this is a synthesized node...
public:
ShadowDSNode(const Type *Ty, Module *M);
virtual std::string getCaption() const;
// synthesizeNode - Create a new shadow node that is to be linked into this
// chain..
//
ShadowDSNode *synthesizeNode(const Type *Ty, FunctionRepBuilder *Rep);
// isEquivalentTo - Return true if the nodes should be merged...
virtual bool isEquivalentTo(DSNode *Node) const;
DSNode *getShadowParent() const { return ShadowParent; }
// Support type inquiry through isa, cast, and dyn_cast...
static bool classof(const ShadowDSNode *) { return true; }
static bool classof(const DSNode *N) { return N->NodeType == ShadowNode; }
private:
ShadowDSNode(const Type *Ty, Module *M, ShadowDSNode *ShadParent);
ShadowDSNode(const Type *Ty, Module *M, DSNode *ShadParent);
protected:
virtual void mapNode(std::map<const DSNode*, DSNode*> &NodeMap,
const DSNode *Old);
virtual ShadowDSNode *cloneImpl() const {
if (ShadowParent)
return new ShadowDSNode(getType(), Mod, ShadowParent);