remove CallGraphNode::replaceCallSite, it is redundant with other APIs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80708 91177308-0d34-0410-b5e6-96231b3b80d8

4 files changed, 7 insertions, 25 deletions

diff --git a/lib/Analysis/IPA/CallGraph.cpp b/lib/Analysis/IPA/CallGraph.cpp
index d70b7ab..645916e 100644
--- a/lib/Analysis/IPA/CallGraph.cpp
+++ b/lib/Analysis/IPA/CallGraph.cpp
@@ -279,27 +279,5 @@ void CallGraphNode::removeOneAbstractEdgeTo(CallGraphNode *Callee) {
   }
 }
 
-/// replaceCallSite - Make the edge in the node for Old CallSite be for
-/// New CallSite instead.  Note that this method takes linear time, so it
-/// should be used sparingly.
-void CallGraphNode::replaceCallSite(CallSite Old, CallSite New,
-                                    CallGraphNode *NewCallee) {
-  for (CalledFunctionsVector::iterator I = CalledFunctions.begin(); ; ++I) {
-    assert(I != CalledFunctions.end() && "Cannot find callsite to replace!");
-    if (I->first != Old.getInstruction()) continue;
-    
-    I->first = New.getInstruction();
-    
-    // If the callee is changing, not just the callsite, then update it as
-    // well.
-    if (NewCallee) {
-      I->second->DropRef();
-      I->second = NewCallee;
-      I->second->AddRef();
-    }
-    return;
-  }
-}
-
 // Enuse that users of CallGraph.h also link with this file
 DEFINING_FILE_FOR(CallGraph)
diff --git a/lib/Analysis/IPA/CallGraphSCCPass.cpp b/lib/Analysis/IPA/CallGraphSCCPass.cpp
index a7d1183..f7c38e2 100644
--- a/lib/Analysis/IPA/CallGraphSCCPass.cpp
+++ b/lib/Analysis/IPA/CallGraphSCCPass.cpp
@@ -228,7 +228,7 @@ void CGPassManager::RefreshCallGraph(std::vector<CallGraphNode*> &CurSCC,
           else
             CalleeNode = CG.getCallsExternalNode();
           
-          CGN->replaceCallSite(CS, CS, CalleeNode);
+          ExistingIt->second = CalleeNode;
           MadeChange = true;
           continue;
         }
diff --git a/lib/Transforms/IPO/ArgumentPromotion.cpp b/lib/Transforms/IPO/ArgumentPromotion.cpp
index b1f7f04..3c584c8 100644
--- a/lib/Transforms/IPO/ArgumentPromotion.cpp
+++ b/lib/Transforms/IPO/ArgumentPromotion.cpp
@@ -728,7 +728,9 @@ CallGraphNode *ArgPromotion::DoPromotion(Function *F,
     AA.replaceWithNewValue(Call, New);
 
     // Update the callgraph to know that the callsite has been transformed.
-    CG[Call->getParent()->getParent()]->replaceCallSite(Call, New, NF_CGN);
+    CallGraphNode *CalleeNode = CG[Call->getParent()->getParent()];
+    CalleeNode->removeCallEdgeFor(Call);
+    CalleeNode->addCalledFunction(New, NF_CGN);
 
     if (!Call->use_empty()) {
       Call->replaceAllUsesWith(New);
diff --git a/lib/Transforms/IPO/StructRetPromotion.cpp b/lib/Transforms/IPO/StructRetPromotion.cpp
index 7cb4c9f..4442820 100644
--- a/lib/Transforms/IPO/StructRetPromotion.cpp
+++ b/lib/Transforms/IPO/StructRetPromotion.cpp
@@ -321,7 +321,9 @@ CallGraphNode *SRETPromotion::updateCallSites(Function *F, Function *NF) {
     New->takeName(Call);
 
     // Update the callgraph to know that the callsite has been transformed.
-    CG[Call->getParent()->getParent()]->replaceCallSite(Call, New, NF_CGN);
+    CallGraphNode *CalleeNode = CG[Call->getParent()->getParent()];
+    CalleeNode->removeCallEdgeFor(Call);
+    CalleeNode->addCalledFunction(New, NF_CGN);
     
     // Update all users of sret parameter to extract value using extractvalue.
     for (Value::use_iterator UI = FirstCArg->use_begin(),