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Add initial support for a globals graph

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4656 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2002-11-09 20:01:01 +00:00
parent d888893a54
commit 2e4f9bf86e
6 changed files with 40 additions and 50 deletions
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26
lib/Analysis/DataStructure/DataStructure.cpp
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@ -501,14 +501,14 @@ Function &DSCallSite::getCaller() const {
// DSGraph Implementation
//===----------------------------------------------------------------------===//
DSGraph::DSGraph(const DSGraph &G) : Func(G.Func) {
DSGraph::DSGraph(const DSGraph &G) : Func(G.Func), GlobalsGraph(0) {
std::map<const DSNode*, DSNodeHandle> NodeMap;
RetNode = cloneInto(G, ScalarMap, NodeMap);
}
DSGraph::DSGraph(const DSGraph &G,
std::map<const DSNode*, DSNodeHandle> &NodeMap)
: Func(G.Func) {
: Func(G.Func), GlobalsGraph(0) {
RetNode = cloneInto(G, ScalarMap, NodeMap);
}
@ -1056,28 +1056,6 @@ void DSGraph::maskNodeTypes(unsigned char Mask) {
// GlobalDSGraph Implementation
//===----------------------------------------------------------------------===//
GlobalDSGraph::GlobalDSGraph() : DSGraph(*(Function*)0, this) {
}
GlobalDSGraph::~GlobalDSGraph() {
assert(Referrers.size() == 0 &&
"Deleting global graph while references from other graphs exist");
}
void GlobalDSGraph::addReference(const DSGraph* referrer) {
if (referrer != this)
Referrers.insert(referrer);
}
void GlobalDSGraph::removeReference(const DSGraph* referrer) {
if (referrer != this) {
assert(Referrers.find(referrer) != Referrers.end() && "This is very bad!");
Referrers.erase(referrer);
if (Referrers.size() == 0)
delete this;
}
}
#if 0
// Bits used in the next function
static const char ExternalTypeBits = DSNode::GlobalNode | DSNode::HeapNode;