* Eliminate ArgDSNode's completely, now rely on scalar map
* Fold call nodes that are indistinguishable for each other. This is a big
win for external functions like sqrt, which would multiply dramatically
before.
* Global nodes with no edges to or from them are now eliminated from the graph.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2257 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/DataStructure/FunctionRepBuilder.cpp b/lib/Analysis/DataStructure/FunctionRepBuilder.cpp
index eda16bc..2afede5 100644
--- a/lib/Analysis/DataStructure/FunctionRepBuilder.cpp
+++ b/lib/Analysis/DataStructure/FunctionRepBuilder.cpp
@@ -147,19 +147,13 @@
Value *Arg = (Value*)(*I);
// Only process arguments that are of pointer type...
if (PointerType *PT = dyn_cast<PointerType>(Arg->getType())) {
- ArgDSNode *ArgNode = new ArgDSNode(*I);
- ArgNodes.push_back(ArgNode);
-
- // Add a critical shadow value for it to represent what it is pointing
- // to and add this to the value map...
+ // Add a shadow value for it to represent what it is pointing to and add
+ // this to the value map...
ShadowDSNode *Shad = new ShadowDSNode(PT->getElementType(),
Func->getParent(), true);
ShadowNodes.push_back(Shad);
ValueMap[Arg].add(PointerVal(Shad), Arg);
- // The value of the argument is the shadow value...
- ArgNode->getLink(0).add(Shad);
-
// Make sure that all users of the argument are processed...
addAllUsesToWorkList(Arg);
}
@@ -332,7 +326,6 @@
//
FunctionDSGraph::FunctionDSGraph(Function *F) : Func(F) {
FunctionRepBuilder Builder(this);
- ArgNodes = Builder.getArgNodes();
AllocNodes = Builder.getAllocNodes();
ShadowNodes = Builder.getShadowNodes();
GlobalNodes = Builder.getGlobalNodes();
@@ -351,4 +344,3 @@
Changed |= RemoveUnreachableNodes();
}
}
-