Merge branch 'Fix-and-Loop-unrolling-'

.gitignore

@@ -7,5 +7,6 @@ build/
 .gnupg
 .bash_history
 .cache/
+*.solution
 compile_commands.json
 llvm/

.vscode/launch.json

@@ -4,6 +4,21 @@
   // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
   "version": "0.2.0",
   "configurations": [
+  {
+      "type": "lldb",
+      "request": "launch",
+      "name": "LLDB Unrolling",
+      "program": "/usr/bin/opt",
+      "args": [
+        "-load-pass-plugin",
+        "${workspaceFolder}/build/libCacheAnalysisPass.so",
+        "-passes=lru-misses",
+        "${workspaceFolder}/test/cnt.ll",
+        "-o",
+        "/dev/null"
+      ],
+      "cwd": "${workspaceFolder}"
+    },
     {
       "type": "lldb",
       "request": "launch",

CacheAnalysisPass/CacheAnalysisPass.cpp

@@ -46,52 +46,6 @@ using namespace llvm;
 // everything in an anonymous namespace.
 namespace {
 
-std::string typeToName(Type::TypeID Id) {
-  switch (Id) {
-  case Type::TypeID::ArrayTyID:
-    return "ArrayTy";
-  case Type::TypeID::BFloatTyID:
-    return "BFloatTy";
-  case Type::TypeID::FloatTyID:
-    return "FloatTy";
-  case Type::TypeID::DoubleTyID:
-    return "DoubleTy";
-  case Type::TypeID::FixedVectorTyID:
-    return "FixedVectorTy";
-  case Type::TypeID::FP128TyID:
-    return "FP128Ty";
-  case Type::TypeID::FunctionTyID:
-    return "FunctionTy";
-  case Type::TypeID::HalfTyID:
-    return "HalfTy";
-  case Type::TypeID::IntegerTyID:
-    return "IntegerTy";
-  case Type::TypeID::LabelTyID:
-    return "LabelTy";
-  case Type::TypeID::MetadataTyID:
-    return "MetadataTy";
-  case Type::TypeID::PointerTyID:
-    return "PointerTy";
-  case Type::TypeID::PPC_FP128TyID:
-    return "PPC_FP128Ty";
-  case Type::TypeID::ScalableVectorTyID:
-    return "ScalableVectorTy";
-  case Type::TypeID::StructTyID:
-    return "StructTy";
-  case Type::TypeID::TokenTyID:
-    return "TokenTy";
-  case Type::TypeID::VoidTyID:
-    return "VoidTy";
-  case Type::TypeID::X86_AMXTyID:
-    return "X86_AMXTy";
-  case Type::TypeID::X86_FP80TyID:
-    return "X86_FP80Ty";
-  case Type::TypeID::X86_MMXTyID:
-    return "X86_MMXTy";
-  }
-  // should not reach here
-  return nullptr;
-}
 // New PM implementation
 
 struct CacheAnalysisPass : PassInfoMixin<CacheAnalysisPass> {
@@ -102,6 +56,7 @@ struct CacheAnalysisPass : PassInfoMixin<CacheAnalysisPass> {
   bool PrintEdgesPost = false;
   bool DumpToDot = false;
   bool DumpNodes = false;
+  bool LoopUnrolling = true;
 
   // Assume a 4kB Cache
   // with 16 Sets, associativity of 4 and Cachelines fitting two
@@ -274,15 +229,17 @@ struct CacheAnalysisPass : PassInfoMixin<CacheAnalysisPass> {
       if (PrintAddresses)
         addressPrinter(F);
     }
+    if(LoopUnrolling)
+      AC.unrollLoops();
+    AC.runMustAnalysis(EntryAddress);
+    if (DumpNodes)
+      AC.dumpNodes();
     if (PrintEdgesPost)
       AC.dumpEdges();
     if (DumpToDot)
       AC.dumpDotFile();
-    AC.fillAbstractCache(EntryAddress);
-    if (DumpNodes)
-      AC.dumpNodes();
     outs() << "MustHits: " << AC.collectHits() << "\n";
-    outs() << "MayMisses: " << AC.collectMisses() << "\n";
+    //outs() << "MayMisses: " << AC.collectMisses() << "\n";
     return PreservedAnalyses::all();
   }
 };

helper.sh

@@ -111,49 +111,30 @@ case $1 in
     docker run -i -d -v "$(pwd)"/.:/root:rw --name RTSAlab01 rtsalab01cacheanalysis
     ;;
   evaluation | eval)
-    echo "Currently not available!"
+    run "crc"
-    echo "But please continue to implement the must join,"
+    echo "==== Correct crc ===="
-    echo "to the best of your abilities and check for updates!"
+    echo "MustHits: 90"
-    # run "fft1"
+    echo
-    # echo "==== Correct fft1 ===="
+    run "cnt"
-    # echo "MustHits: 16"
+    echo "==== Correct cnt ===="
-    # echo "MayMisses: 280"
+    echo "MustHits: 28"
-    # echo
+    echo
-    # run "bsort100"
+    run "duff"
-    # echo "==== Correct bsort100 ===="
+    echo "==== Correct duff ===="
-    # echo "MustHits: 1"
+    echo "MustHits: 78"
-    # echo "MayMisses: 41"
+    echo
-    # echo
+    run "fft1"
-    # run "lms"
+    echo "==== Correct fft1 ===="
-    # echo "==== Correct lms ===="
+    echo "MustHits: 74"
-    # echo "MustHits: 5"
+    echo
-    # echo "MayMisses: 288"
+    run "insertsort"
-    # echo
+    echo "==== Correct insertsort ===="
-    # run "minver"
+    echo "MustHits: 61"
-    # echo "==== Correct minver ===="
+    echo
-    # echo "MustHits: 6"
+    run "matmult"
-    # echo "MayMisses: 224"
+    echo "==== Correct matmult ===="
-    # echo
+    echo "MustHits: 34"
-    # run "qsort-exam"
+    echo
-    # echo "==== Correct qsort-exam ===="
-    # echo "MustHits: 2"
-    # echo "MayMisses: 152"
-    # echo
-    # run "recursion"
-    # echo "==== Correct recursion ===="
-    # echo "MustHits: 8"
-    # echo "MayMisses: 8"
-    # echo
-    # run "select"
-    # echo "==== Correct select ===="
-    # echo "MustHits: 4"
-    # echo "MayMisses: 108"
-    # echo
-    # run "whet"
-    # echo "==== Correct whet ===="
-    # echo "MustHits: 5"
-    # echo "MayMisses: 265"
-    # echo
     ;;
   a | all)
     clean

include/AbstractCache.h

@@ -6,6 +6,7 @@
 #include <cstddef>
 #include <fstream>
 #include <iostream>
+#include <list>
 #include <map>
 #include <ostream>
 #include <utility>
@@ -44,51 +45,362 @@ public: // everything is public, because IDGAF
     Nodes[Suc].Predecessors.push_back(Pre);
   }
 
-  void addEmptyNode(unsigned int NodeAddr) {
+  /**
-    Nodes[NodeAddr] = AbstractState(NodeAddr);
+   * @brief Add an Edge to the AbstractStateGraph
+   *
+   * @param Pre
+   * @param Suc
+   */
+  void removeEdge(unsigned int Pre, unsigned int Suc) {
+    Edges[Pre].remove(Suc);
+    Nodes[Pre].Successors.remove(Suc);
+    Nodes[Suc].Predecessors.remove(Pre);
   }
 
-  void fillAbstractCache(unsigned int NodeNr) {
+  /**
-    Nodes[NodeNr].Computed = true;
+   * @brief Add an Empty node @NodeAddr
-    for (unsigned int SuccNr : Nodes[NodeNr].Successors) {
+   *
-      Nodes[SuccNr];
+   * @param NodeAddr
-      if (Nodes[SuccNr].Computed) {
+   * @return unsigned int
-        // Join don't call
+   */
-        Nodes[SuccNr].mustJoin(Nodes[NodeNr]);
+  unsigned int addEmptyNode(unsigned int NodeAddr) {
-        Nodes[SuccNr].mustJoin(AbstractState(NodeNr));
+    int I = Nodes.size();
-      } else {
+    Nodes[I] = AbstractState(NodeAddr);
-        // Update and fill Succ
+    return I;
-        Nodes[SuccNr].fill(Nodes[NodeNr], NodeNr);
+  }
-        fillAbstractCache(SuccNr);
+
+  /**
+   * @brief Returns True if a path From -> To exists.
+   *
+   * @param From
+   * @param To
+   * @return true
+   * @return false
+   */
+  bool findPath(unsigned int From, unsigned int To) {
+    std::map<unsigned int, bool> Visited;
+    Visited[From] = false;
+    bool Ret = false;
+    for (auto Visitor : Visited) {
+      if (!Visitor.second) {
+        for (unsigned int Next : Edges[Visitor.first]) {
+          if (Next == To) {
+            return true;
+          }
+          Visited[Next] = false;
+        }
+      }
+      Visited[Visitor.first] = true;
+    }
+    return false;
+  }
+
+  /**
+   * @brief  Removes all Nested loops from the handed LoopBody
+   *
+   * @param LoopBodyIn
+   * @param OrigNodeToUnrolledNode
+   */
+  void removeNestedLoops(
+      std::list<unsigned int> LoopBodyIn,
+      std::map<unsigned int, unsigned int> OrigNodeToUnrolledNode) {
+    unsigned int LoopHead = LoopBodyIn.front();
+    unsigned int LoopTail = LoopBodyIn.back();
+    unsigned int NestLoopTail;
+    for (unsigned int NodeNr : LoopBodyIn) {
+      bool IsLoopHead = false;
+      bool FoundLoopBody = false;
+      unsigned int LoopBodySize = 0;
+      int NestLoopHead = 0;
+      NestLoopHead = NodeNr;
+      if (Nodes[NodeNr].Predecessors.size() > 1) {
+        IsLoopHead = true;
+        FoundLoopBody = false;
+        LoopBodySize++;
+        // is loop head?
+        for (unsigned int Pre : Nodes[NodeNr].Predecessors) {
+          if (Pre > NodeNr) {
+            // Might be loop head.
+            // check if all States between Pre and NodeNr are a coherent set.
+            for (unsigned int I = NodeNr; I < Pre; I++) {
+              // Check if all out going edges are in the set
+              for (unsigned int Succ : Nodes[I].Successors) {
+                if (Succ > Pre) {
+                  //  Set is not coherent
+                  IsLoopHead = false;
+                  break;
+                }
+              }
+              // check if all incoming edges are in the set.
+              if (IsLoopHead && I != NodeNr)
+                for (unsigned int Pred : Nodes[I].Predecessors) {
+                  if (Pred < NodeNr) {
+                    //  Set is not coherent
+                    IsLoopHead = false;
+                    break;
+                  }
+                }
+              FoundLoopBody = true;
+              LoopBodySize++;
+            }
+            NestLoopTail = Pre;
+          } else if (!FoundLoopBody) {
+            // If no coherent Loopbody exist we cannot unroll.
+            NestLoopHead = 0;
+            IsLoopHead = false;
+          }
+          if (FoundLoopBody) {
+            // Check if a Path between Head and Tail exists,
+            // if not its not a loop.
+            if (findPath(NestLoopHead, NestLoopTail))
+              removeEdge(OrigNodeToUnrolledNode[NestLoopTail],
+                         OrigNodeToUnrolledNode[NestLoopHead]);
+          }
+        }
+      }
+    }
+  }
+
+  /**
+   * @brief Unroll Loops.
+   *
+   * @param NodeNr
+   */
+  void unrollLoops() {
+    unsigned int NestedBorder = 0;
+    unsigned int LastNode = Nodes.size();
+    unsigned int IterationCounter = 0;
+    for (std::pair<const unsigned int, AbstractState> NodePair : Nodes) {
+      IterationCounter++;
+      if (NodePair.first == LastNode) {
+        break;
+      }
+      unsigned int NodeNr = NodePair.first;
+      // Don't unroll nested loops
+      if (NodeNr < NestedBorder)
+        continue;
+      bool IsLoopHead = false;
+      bool FoundLoopBody = false;
+      bool Verbose = false;
+      std::list<unsigned int> LoopBody;
+      std::list<unsigned int> AdditionalLoopTails;
+      if (Nodes[NodeNr].Predecessors.size() > 1) {
+        IsLoopHead = true;
+        // is loop head?
+        for (unsigned int Pre : Nodes[NodeNr].Predecessors) {
+          if (Pre > NodeNr) {
+            // Might be loop head.
+            // check if all States between Pre and NodeNr are a coherent set.
+            for (unsigned int I = NodeNr; I < Pre; I++) {
+              // Check if all out going edges are in the set
+              for (unsigned int Succ : Nodes[I].Successors) {
+                for (unsigned int PreI : Nodes[I].Predecessors) {
+                  // Handle if we have multiple Loopheads.
+                  if (PreI >= Pre && I != NodeNr) {
+                    // I and Pre are Looptail.
+                    {
+                      if (std::find(AdditionalLoopTails.begin(),
+                                    AdditionalLoopTails.end(),
+                                    I) == AdditionalLoopTails.end()) {
+                        AdditionalLoopTails.push_back(I);
+                        break;
+                      }
+                    }
+                  }
+                  if (std::find(LoopBody.begin(), LoopBody.end(), I) ==
+                      LoopBody.end())
+                    LoopBody.push_back(I);
+
+                  if (Succ > Pre) {
+                    //  Set is not coherent
+                    IsLoopHead = false;
+                    break;
+                  }
+                }
+              }
+              // check if all incoming edges are in the set.
+              if (IsLoopHead && I != NodeNr)
+                for (unsigned int Pred : Nodes[I].Predecessors) {
+                  if (Pred < NodeNr) {
+                    //  Set is not coherent
+                    IsLoopHead = false;
+                    break;
+                  }
+                }
+              FoundLoopBody = true;
+            }
+            LoopBody.push_back(Pre);
+          } else if (!FoundLoopBody) {
+            // If no coherent Loopbody exist we cannot unroll.
+            LoopBody.clear();
+            IsLoopHead = false;
+          }
+        }
+      }
+      // Found Loop Head and Body!
+      // Add empty unrolled Nodes
+      // Map points from OrigNode To Unrolled Node.
+      if (FoundLoopBody) {
+        std::map<unsigned int, unsigned int> OrigNodeToUnrolledNode;
+        for (unsigned int Node : LoopBody) {
+          // Node to unroll
+          AbstractState UnrolledNode(Nodes[Node]);
+          UnrolledNode.setUnrolled(1);
+          unsigned int I = Nodes.size();
+          Nodes[I] = UnrolledNode;
+          OrigNodeToUnrolledNode[Node] = I;
+          assert(Nodes[OrigNodeToUnrolledNode[Node]].Unrolled == 1);
+          assert(Nodes[Node].Addr == Nodes[OrigNodeToUnrolledNode[Node]].Addr);
+        }
+
+        // LoopTail and Head have to be processed different
+        unsigned int LoopTail = LoopBody.back();
+        LoopBody.pop_back();
+        NestedBorder = LoopTail;
+        unsigned int LoopHead = LoopBody.front();
+        LoopBody.pop_front();
+
+        // Find State entering to LoopHead ()
+        unsigned int LoopHeadEntry = 0;
+        for (unsigned int Pre : Nodes[LoopHead].Predecessors) {
+          if (Pre < LoopHead) {
+            LoopHeadEntry = Pre;
+            break;
+          }
+        }
+
+        // Make LoopHeadEntry point to unrolled state instead of the loop.
+        addEdge(LoopHeadEntry, OrigNodeToUnrolledNode[LoopHead]);
+        removeEdge(LoopHeadEntry, LoopHead);
+        // Connect unrolled Loop to the the original Loop.
+        if (AdditionalLoopTails.size() == 0)
+          addEdge(OrigNodeToUnrolledNode[LoopTail], LoopHead);
+        for (auto Tail : AdditionalLoopTails)
+          addEdge(OrigNodeToUnrolledNode[Tail], LoopHead);
+
+        // Fix all other states
+        addEdge(OrigNodeToUnrolledNode[LoopBody.back()],
+                OrigNodeToUnrolledNode[LoopTail]);
+        for (unsigned int Node : LoopBody) {
+          for (unsigned int Pre : Nodes[Node].Predecessors) {
+            // if (std::find(LoopBody.begin(), LoopBody.end(), Pre) !=
+            //     LoopBody.end())
+            // Add All predecessors and successors to unrolled Nodes
+            addEdge(OrigNodeToUnrolledNode[Pre], OrigNodeToUnrolledNode[Node]);
+          }
+        }
+
+        // Remove Nested loops in unrolled loop
+        removeNestedLoops(LoopBody, OrigNodeToUnrolledNode);
+
+        if (Verbose && FoundLoopBody) {
+          llvm::outs() << "Found LoopHead @: " << NodeNr << "\n";
+          llvm::outs() << "With LoopTail @: " << LoopTail << "\n";
+          llvm::outs() << "With Body: {\n";
+          int I = 1;
+          for (auto Node : LoopBody) {
+            llvm::outs() << Node << ", ";
+            if (!(I++ % 5)) {
+              llvm::outs() << "\n";
+            }
+          }
+          llvm::outs() << "}\n";
+          llvm::outs() << "Unrolled States: {\n";
+          I = 1;
+          for (auto Node : LoopBody) {
+            llvm::outs() << OrigNodeToUnrolledNode[Node] << ", ";
+            if (!(I++ % 5)) {
+              llvm::outs() << "\n";
+            }
+          }
+          llvm::outs() << "}\n";
+          I = 1;
+          llvm::outs() << "OrigNodeToUnrolledNode: {\n";
+          for (auto Nr : OrigNodeToUnrolledNode) {
+            llvm::outs() << Nr.first << "->" << Nr.second << ", ";
+            if (!(I++ % 3))
+              llvm::outs() << "\n";
+          }
+          llvm::outs() << "}\n";
+        }
       }
     }
     return;
   }
 
+  /**
+   * @brief Perform must analysis in the Graph
+   *
+   * @param NodeNr
+   */
+  void runMustAnalysis(unsigned int NodeNr) {
+    // Join and call until the state converges.
+
+    Nodes[NodeNr].Computed++;
+
+    // fill all Successors, if filled Already join.
+    for (unsigned int SuccNr : Nodes[NodeNr].Successors) {
+      if (Nodes[SuccNr].Filled) {
+        // Join Successor with current State and its Address
+        Nodes[SuccNr].mustJoin(
+            AbstractState(Nodes[NodeNr], Address(Nodes[NodeNr].Addr)));
+      } else {
+        // Fill Successor with current State and its Address
+        Nodes[SuccNr].fill(Nodes[NodeNr], Address(Nodes[NodeNr].Addr));
+        // first Fill, so set Filled
+        Nodes[SuccNr].Filled = true;
+      }
+
+      // Continue Filling CFG on Successors.
+      for (unsigned int SuccNr : Nodes[NodeNr].Successors) {
+        // We can use this as we can safely assume a State has at most two successors.
+        // Due to branch instruction in llvmIR
+        if (Nodes[NodeNr].Computed > 2)
+          continue;
+        runMustAnalysis(SuccNr);
+      }
+    }
+    return;
+  }
+
+  /**
+   * @brief Return number of measured Hits
+   *
+   * @return unsigned int
+   */
   unsigned int collectHits() {
     unsigned int Hits = 0;
     for (auto const &E : Edges) {
       auto Predecessor = Nodes[E.first];
       for (unsigned int SuccessorAddr : E.second) {
         // When successors Address is in predecessor, we have a Hit.
-        Hits += Predecessor.isHit(Address(SuccessorAddr)) ? 1 : 0;
+        Hits += Predecessor.isHit(Address(Nodes[SuccessorAddr].Addr)) ? 1 : 0;
       }
     }
     return Hits;
   }
 
+  /**
+   * @brief Return number of measured Misses
+   *
+   * @return unsigned int
+   */
   unsigned int collectMisses() {
     unsigned int Misses = 0;
     for (auto const &E : Edges) {
       auto Predecessor = Nodes[E.first];
       for (unsigned int SuccessorAddr : E.second) {
         // When successors Address is in predecessor, we have a Hit.
-        Misses += Predecessor.isHit(Address(SuccessorAddr)) ? 0 : 1;
+        Misses += Predecessor.isHit(Address(Nodes[SuccessorAddr].Addr)) ? 0 : 1;
       }
     }
     return Misses;
   }
 
+  /**
+   * @brief Prints all Edges to Console
+   *
+   */
   void dumpEdges() {
     llvm::outs() << "Dumping Edges:\n";
     for (auto const &E : Edges) {
@@ -106,20 +418,38 @@ public: // everything is public, because IDGAF
     }
   }
 
+  /**
+   * @brief Dumps the Graph to a out.dot file
+   *
+   */
   void dumpDotFile() {
+    bool PrintOld = true;
     std::ofstream DotFile;
     DotFile.open("out.dot");
     DotFile << "digraph g {"
             << "\n";
     for (auto const &E : Edges) {
       for (unsigned int To : E.second) {
+        if (PrintOld) {
           DotFile << E.first << " -> " << To << "\n";
+          if (Nodes[E.first].Unrolled) {
+            DotFile << E.first << " [color = red]\n";
+          }
+        } else {
+          DotFile << Nodes[E.first].Addr << "." << Nodes[E.first].Unrolled
+                  << " -> " << Nodes[To].Addr << "." << Nodes[To].Unrolled
+                  << "\n";
+        }
       }
     }
     DotFile << "}\n";
     DotFile.close();
   }
 
+  /**
+   * @brief Prints all nodes to Console
+   *
+   */
   void dumpNodes() {
     for (auto const &E : Edges) {
       Nodes[E.first].dump();

include/AbstractState.h

@@ -1,6 +1,7 @@
 #ifndef ABSSTATE_H
 #define ABSSTATE_H
 
+#include <algorithm>
 #include <cassert>
 #include <cstddef>
 #include <cstdlib>
@@ -27,8 +28,10 @@ public: // everything is public, because IDGAF
   std::list<unsigned int> Predecessors;
 
   unsigned int Addr;
+  unsigned int Unrolled;
 
-  bool Computed = false;
+  int Computed = 0;
+  bool Filled = false;
 
   // Only entries below this comment are needed for the exercise.
 
@@ -57,6 +60,8 @@ public: // everything is public, because IDGAF
   std::map<unsigned int, Set> Sets;
 
   AbstractState(AbstractState const &Copy) {
+    Addr = Copy.Addr;
+    Unrolled = Copy.Unrolled;
     for (auto S : Copy.Sets) {
       unsigned int SetNr = S.first;
       for (auto E : S.second.Associativity) {
@@ -68,12 +73,61 @@ public: // everything is public, because IDGAF
     }
   }
 
+  AbstractState(AbstractState const &Copy, Address Update) {
+    Addr = Copy.Addr;
+    Unrolled = Copy.Unrolled;
+    for (auto S : Copy.Sets) {
+      unsigned int SetNr = S.first;
+      for (auto E : S.second.Associativity) {
+        unsigned int Age = E.first;
+        for (auto B : E.second.Blocks) {
+          Sets[SetNr].Associativity[Age].Blocks.push_back(B);
+        }
+      }
+    }
+    this->update(Update);
+  }
+
   AbstractState() {}
 
-  AbstractState(unsigned int AddressIn) { Addr = AddressIn; }
+  AbstractState(unsigned int AddressIn) {
+    Addr = AddressIn;
+    Unrolled = 0;
+  }
 
-  AbstractState(Address Addr) {
+  AbstractState(unsigned int AddressIn, unsigned int UnrolledIn) {
-    Sets[Addr.Index].Associativity[0] = {{Addr.Tag}};
+    Addr = AddressIn;
+    Unrolled = UnrolledIn;
+  }
+
+  // AbstractState(Address Addr) {
+  //   Sets[Addr.Index].Associativity[0] = {{Addr.Tag}};
+  // }
+
+  void setUnrolled(unsigned int In) { Unrolled = In; }
+
+  bool operator==(AbstractState In) {
+    for (int Index; Index < 16; Index++) {
+      for (int Age; Age < 4; Age++) {
+        for (auto E1 : Sets[Index].Associativity[Age].Blocks) {
+          // find E1 in In States Set and Age.
+          if (std::find(In.Sets[Index].Associativity[Age].Blocks.begin(),
+                        In.Sets[Index].Associativity[Age].Blocks.end(),
+                        E1) == In.Sets[Index].Associativity[Age].Blocks.end()) {
+            return false;
+          }
+        }
+        for (auto E2 : In.Sets[Index].Associativity[Age].Blocks) {
+          // find E2 in This Set and Age.
+          if (std::find(Sets[Index].Associativity[Age].Blocks.begin(),
+                        Sets[Index].Associativity[Age].Blocks.end(),
+                        E2) == Sets[Index].Associativity[Age].Blocks.end()) {
+            return false;
+          }
+        }
+      }
+    }
+    return true;
   }
 
   /**
@@ -111,45 +165,34 @@ public: // everything is public, because IDGAF
    * @param Addr , Address
    */
   void update(Address Addr) {
+    // If Updated Address is of Age 0 do nothing
+    if (std::find(Sets[Addr.Index].Associativity[0].Blocks.begin(),
+                  Sets[Addr.Index].Associativity[0].Blocks.end(),
+                  Addr.Tag) != Sets[Addr.Index].Associativity[0].Blocks.end())
+      return;
+    // This loopages all entries by one. 3 <-2, 2<-1, 1<-0
     for (int I = 3; I > 0; I--) {
       Sets[Addr.Index].Associativity[I] = Sets[Addr.Index].Associativity[I - 1];
+      Sets[Addr.Index].Associativity[I].Blocks.remove(Addr.Tag);
     }
+    // entry at age 0 is updated with current address.
     Sets[Addr.Index].Associativity[0].Blocks = {Addr.Tag};
   }
 
   /**
-   * @brief Updates the AbstractState with given AbstractState
+   * @brief Fills the AbstractState PreState and updates with PreAddress.
-   *
-   * @param UpdateState, State that gets merged into State with Age+1.
-   */
-  void update(AbstractState UpdateState) {
-    for (auto S : UpdateState.Sets) {
-      unsigned int Index = S.first;
-      for (auto E : S.second.Associativity) {
-        unsigned int Age = E.first + 1;
-        // If updated age is greater 4 The Tag is no longer in Cache.
-        // Due to associativity of 4 per set.
-        if (Age >= 4)
-          break;
-        for (auto B : E.second.Blocks) {
-          Sets[Index].Associativity[Age].Blocks.push_back(B);
-        }
-      }
-    }
-  }
-
-  /**
-   * @brief Fills the AbstractState PreState and PreAddress.
    *
    * @param PreState, State that fills this state.
    *
    * @param PreAddr Address of PreState
    */
   void fill(AbstractState PreState, Address PreAddr) {
+    bool Verbose = false;
+    // copy Pre State into this.
     for (auto S : PreState.Sets) {
       unsigned int Index = S.first;
       for (auto E : S.second.Associativity) {
-        unsigned int Age = E.first + 1;
+        unsigned int Age = E.first;
         // If updated age is greater 4 The Tag is no longer in Cache.
         // Due to associativity of 4 per set.
         if (Age >= 4)
@@ -159,11 +202,24 @@ public: // everything is public, because IDGAF
         }
       }
     }
-    Sets[PreAddr.Index].Associativity[0].Blocks.push_back(PreAddr.Tag);
+    if (Verbose) {
+      llvm::outs() << "Before:\n";
+      this->dump();
+    }
+    // update this with PreAddr
+    this->update(PreAddr);
+    if (Verbose) {
+      llvm::outs() << "Update Tag: " << PreAddr.Tag << "\n";
+      llvm::outs() << "Update Set: " << PreAddr.Index << "\n";
+      llvm::outs() << "After:\n";
+      this->dump();
+    }
   }
 
   void dump() {
     llvm::outs() << Addr << " {\n";
+    llvm::outs() << "Unrolled: " << Unrolled << "\n";
+    llvm::outs() << "Computed: " << Computed << "\n";
     llvm::outs() << "Predecessors: ";
     for (auto PreNr : Predecessors) {
       llvm::outs() << PreNr << " ";

poolhelper.sh

@@ -145,49 +145,30 @@ case $1 in
     docker run -i -d -v "$(pwd)"/.:/root:rw --name RTSAlab01 rtsalab01cacheanalysis
     ;;
   evaluation | eval)
-    echo "Currently not available!"
+    run "crc"
-    echo "But please continue to implement the must join,"
+    echo "==== Correct crc ===="
-    echo "to the best of your abilities and check for updates!"
+    echo "MustHits: 90"
-    # run "fft1"
+    echo
-    # echo "==== Correct fft1 ===="
+    run "cnt"
-    # echo "MustHits: 16"
+    echo "==== Correct cnt ===="
-    # echo "MayMisses: 280"
+    echo "MustHits: 28"
-    # echo
+    echo
-    # run "bsort100"
+    run "duff"
-    # echo "==== Correct bsort100 ===="
+    echo "==== Correct duff ===="
-    # echo "MustHits: 1"
+    echo "MustHits: 78"
-    # echo "MayMisses: 41"
+    echo
-    # echo
+    run "fft1"
-    # run "lms"
+    echo "==== Correct fft1 ===="
-    # echo "==== Correct lms ===="
+    echo "MustHits: 74"
-    # echo "MustHits: 5"
+    echo
-    # echo "MayMisses: 288"
+    run "insertsort"
-    # echo
+    echo "==== Correct insertsort ===="
-    # run "minver"
+    echo "MustHits: 61"
-    # echo "==== Correct minver ===="
+    echo
-    # echo "MustHits: 6"
+    run "matmult"
-    # echo "MayMisses: 224"
+    echo "==== Correct matmult ===="
-    # echo
+    echo "MustHits: 34"
-    # run "qsort-exam"
+    echo
-    # echo "==== Correct qsort-exam ===="
-    # echo "MustHits: 2"
-    # echo "MayMisses: 152"
-    # echo
-    # run "recursion"
-    # echo "==== Correct recursion ===="
-    # echo "MustHits: 8"
-    # echo "MayMisses: 8"
-    # echo
-    # run "select"
-    # echo "==== Correct select ===="
-    # echo "MustHits: 4"
-    # echo "MayMisses: 108"
-    # echo
-    # run "whet"
-    # echo "==== Correct whet ===="
-    # echo "MustHits: 5"
-    # echo "MayMisses: 265"
-    # echo
     ;;
   a | all)
     clean