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-rw-r--r--lib/Transforms/Instrumentation/ProfilePaths/ProfilePaths.cpp60
1 files changed, 28 insertions, 32 deletions
diff --git a/lib/Transforms/Instrumentation/ProfilePaths/ProfilePaths.cpp b/lib/Transforms/Instrumentation/ProfilePaths/ProfilePaths.cpp
index 6a4e9e2..cd34192 100644
--- a/lib/Transforms/Instrumentation/ProfilePaths/ProfilePaths.cpp
+++ b/lib/Transforms/Instrumentation/ProfilePaths/ProfilePaths.cpp
@@ -74,14 +74,9 @@ bool ProfilePaths::runOnFunction(Function &F){
return false;
}
- //std::cerr<<"Instrumenting\n-----------------\n";
- //std::cerr<<F;
//increment counter for instrumented functions. mn is now function#
mn++;
- //std::cerr<<"MN = "<<mn<<"\n";;
- //std::cerr<<F;
-
// Transform the cfg s.t. we have just one exit node
BasicBlock *ExitNode = getAnalysis<UnifyFunctionExitNodes>().getExitNode();
@@ -120,10 +115,10 @@ bool ProfilePaths::runOnFunction(Function &F){
Graph g(nodes,edges, startNode, exitNode);
- //#ifdef DEBUG_PATH_PROFILES
- //std::cerr<<"Original graph\n";
- //printGraph(g);
- //#endif
+#ifdef DEBUG_PATH_PROFILES
+ std::cerr<<"Original graph\n";
+ printGraph(g);
+#endif
BasicBlock *fr = &F.front();
@@ -132,19 +127,15 @@ bool ProfilePaths::runOnFunction(Function &F){
vector<Edge> be;
std::map<Node *, int> nodePriority; //it ranks nodes in depth first order traversal
g.getBackEdges(be, nodePriority);
- /*
- std::cerr<<"Node priority--------------\n";
- for(std::map<Node *, int>::iterator MI = nodePriority.begin(),
- ME = nodePriority.end(); MI!=ME; ++MI)
- std::cerr<<MI->first->getElement()->getName()<<"->"<<MI->second<<"\n";
- std::cerr<<"End Node priority--------------\n";
- */
- //std::cerr<<"BackEdges-------------\n";
- // for(vector<Edge>::iterator VI=be.begin(); VI!=be.end(); ++VI){
- //printEdge(*VI);
- //cerr<<"\n";
- //}
- //std::cerr<<"------\n";
+
+#ifdef DEBUG_PATH_PROFILES
+ std::cerr<<"BackEdges-------------\n";
+ for(vector<Edge>::iterator VI=be.begin(); VI!=be.end(); ++VI){
+ printEdge(*VI);
+ cerr<<"\n";
+ }
+ std::cerr<<"------\n";
+#endif
#ifdef DEBUG_PATH_PROFILES
cerr<<"Backedges:"<<be.size()<<endl;
@@ -159,20 +150,25 @@ bool ProfilePaths::runOnFunction(Function &F){
vector<Edge> exDummy;
addDummyEdges(stDummy, exDummy, g, be);
- //std::cerr<<"After adding dummy edges\n";
- //printGraph(g);
-
+#ifdef DEBUG_PATH_PROFILES
+ std::cerr<<"After adding dummy edges\n";
+ printGraph(g);
+#endif
+
// Now, every edge in the graph is assigned a weight
// This weight later adds on to assign path
// numbers to different paths in the graph
// All paths for now are acyclic,
// since no back edges in the graph now
// numPaths is the number of acyclic paths in the graph
- int numPaths=valueAssignmentToEdges(g, nodePriority);
+ int numPaths=valueAssignmentToEdges(g, nodePriority, be);
if(numPaths<=1 || numPaths >5000) return false;
- //std::cerr<<"Numpaths="<<numPaths<<std::endl;
- //printGraph(g);
+
+#ifdef DEBUG_PATH_PROFILES
+ printGraph(g);
+#endif
+
//create instruction allocation r and count
//r is the variable that'll act like an accumulator
//all along the path, we just add edge values to r
@@ -181,13 +177,13 @@ bool ProfilePaths::runOnFunction(Function &F){
//the number of executions of path numbered x
Instruction *rVar=new
- AllocaInst(PointerType::get(Type::IntTy),
+ AllocaInst(Type::IntTy,
ConstantUInt::get(Type::UIntTy,1),"R");
-
+
Instruction *countVar=new
- AllocaInst(PointerType::get(Type::IntTy),
+ AllocaInst(Type::IntTy,
ConstantUInt::get(Type::UIntTy, numPaths), "Count");
-
+
// insert initialization code in first (entry) BB
// this includes initializing r and count
insertInTopBB(&F.getEntryNode(),numPaths, rVar, countVar);