refactored

.gitignore

@@ -78,3 +78,4 @@ Sapfor/Sapc++/x64/
 
 Sapfor/out/
 Sapfor/_bin/*
+_bin/*

CMakeLists.txt

@@ -161,11 +161,15 @@ set(PARALLEL_REG src/ParallelizationRegions/ParRegions.cpp
         src/ParallelizationRegions/expand_extract_reg.cpp
         src/ParallelizationRegions/expand_extract_reg.h
         src/ParallelizationRegions/resolve_par_reg_conflicts.cpp
-        src/ParallelizationRegions/resolve_par_reg_conflicts.h)
+        src/ParallelizationRegions/resolve_par_reg_conflicts.h
+        src/ParallelizationRegions/uniq_name_creator.cpp
+        src/ParallelizationRegions/uniq_name_creator.h)
 
 set(ARRAY_PROP src/ArrayConstantPropagation/propagation.cpp
 	src/ArrayConstantPropagation/propagation.h	
 )
+set(MERGE_REGIONS src/ParallelizationRegions/merge_regions.cpp
+         src/ParallelizationRegions/merge_regions.h)
 
 set(TR_DEAD_CODE src/Transformations/DeadCodeRemoving/dead_code.cpp
         src/Transformations/DeadCodeRemoving/dead_code.h)
@@ -207,7 +211,9 @@ set(TR_EXPR_TRANSFORM src/Transformations/ExpressionSubstitution/control_flow_gr
 set(TR_INLINER src/Transformations/FunctionInlining/inliner.cpp
         src/Transformations/FunctionInlining/inliner.h)
 set(TR_RENAME_SYMBOLS  src/Transformations/RenameSymbols/rename_symbols.cpp
-                    src/Transformations/RenameSymbols/rename_symbols.h)
+        src/Transformations/RenameSymbols/rename_symbols.h)
+SET(TR_MOVE_OPERATORS src/Transformations/MoveOperators/move_operators.cpp
+        src/Transformations/MoveOperators/move_operators.h)
 
 set(TRANSFORMS 
         ${TR_DEAD_CODE}
@@ -230,7 +236,8 @@ set(TRANSFORMS
         ${TR_REPLACE_ARRAYS_IN_IO}
         ${TR_EXPR_TRANSFORM}
         ${TR_INLINER}
-        ${TR_RENAME_SYMBOLS})
+        ${TR_RENAME_SYMBOLS}
+        ${TR_MOVE_OPERATORS})
         
 set(CFG src/CFGraph/IR.cpp
         src/CFGraph/IR.h
@@ -423,6 +430,7 @@ set(SOURCE_EXE
     ${LOOP_ANALYZER}
     ${TRANSFORMS}
     ${PARALLEL_REG}
+    ${MERGE_REGIONS}
     ${PRIV}
     ${ARRAY_PROP}
     ${FDVM}
@@ -464,6 +472,7 @@ source_group (Transformations\\GlobalVariables FILES ${TR_GV})
 source_group (Transformations\\ConvertToC FILES ${TR_CONV})
 source_group (Transformations\\SetImplicitNone FILES ${TR_IMPLICIT_NONE})
 source_group (Transformations\\ReplaceArraysInIO FILES ${TR_REPLACE_ARRAYS_IN_IO})
+source_group (Transformations\\MoveOperators FILES ${TR_MOVE_OPERATORS})
 
 
 source_group (CreateIntervals FILES ${CREATE_INTER_T})
@@ -475,6 +484,7 @@ source_group (GraphCall FILES ${GR_CALL})
 source_group (GraphLoop FILES ${GR_LOOP})
 source_group (LoopAnalyzer FILES ${LOOP_ANALYZER})
 source_group (ParallelizationRegions FILES ${PARALLEL_REG})
+source_group (MergeRegions FILES ${MERGE_REGIONS})
 source_group (PrivateAnalyzer FILES ${PRIV})      
 source_group (ArrayConstantPropagation FILES ${ARRAY_PROP})      
 source_group (FDVM_Compiler FILES ${FDVM})

src/ArrayConstantPropagation/propagation.cpp

@@ -3,13 +3,35 @@
 #include "../Utils/SgUtils.h"
 
 #include <iostream>
+#include <functional>
 #include <unordered_map>
 #include <unordered_set>
 #include <vector>
 
 using namespace std;
 
-static SgStatement* declPlace = NULL;
+namespace {
+
+    struct MyHash {
+        size_t operator()(const SgSymbol* s) const {
+            return std::hash<std::string_view>{}(s->identifier());
+        }
+    };
+
+    struct MyEq {
+        bool operator()(const SgSymbol* a, const SgSymbol* b) const {
+            return std::strcmp(a->identifier(), b->identifier()) == 0;
+        }
+    };
+
+}
+
+SgStatement* declPlace = NULL;
+unordered_set<SgStatement*> changed;
+unordered_set<SgSymbol*, MyHash, MyEq> variablesToAdd;
+unordered_set<SgStatement*> positionsToAdd;
+unordered_set<SgStatement*> statementsToRemove;
+unordered_map<string, vector<pair<SgStatement*, SgStatement*>>> expToChange;
 
 static bool CheckConstIndexes(SgExpression* exp)
 {
@@ -40,158 +62,148 @@ static SgExpression* CreateVar(int& variableNumber, SgType* type)
     string name = varName + std::to_string(variableNumber) + "__";
     variableNumber++;
 
-    SgSymbol* varSymbol = new SgSymbol(VARIABLE_NAME, name.c_str(), *type, *declPlace->controlParent());
+    SgStatement* funcStart = declPlace->controlParent();
+    SgSymbol* varSymbol = new SgSymbol(VARIABLE_NAME, name.c_str(), *type, *funcStart);
+
+    variablesToAdd.insert(varSymbol);
+    positionsToAdd.insert(declPlace);
+
+    return new SgExpression(VAR_REF, NULL, NULL, varSymbol, type->copyPtr());
+}
+
+static SgStatement* FindLastDeclStatement(SgStatement* funcStart)
+{
+    SgStatement* endSt = funcStart->lastNodeOfStmt();
+    SgStatement* cur = funcStart->lexNext();
+    SgStatement* lastDecl = funcStart;
+    const set<int> declVariants = { VAR_DECL, VAR_DECL_90, ALLOCATABLE_STMT, DIM_STAT,
+                                    EXTERN_STAT, COMM_STAT, HPF_TEMPLATE_STAT, DVM_VAR_DECL, STRUCT_DECL };
+
+    while (cur && cur != endSt)
+    {
+        if (cur->variant() == INTERFACE_STMT)
+            cur = cur->lastNodeOfStmt();
+
+        if (declVariants.find(cur->variant()) != declVariants.end())
+            lastDecl = cur;
+        else if (isSgExecutableStatement(cur))
+            break;
+
+        cur = cur->lexNext();
+    }
+
+    return lastDecl;
+}
+
+static void InsertCommonAndDeclsForFunction(SgStatement* funcStart, const unordered_set<SgSymbol*, MyHash, MyEq>& symbols)
+{
+    if (symbols.empty())
+        return;
 
     const string commonBlockName = "__propagation_common__";
 
-    SgStatement* funcStart = declPlace->controlParent();
+    SgStatement* funcEnd = funcStart->lastNodeOfStmt();
     SgStatement* commonStat = NULL;
     SgExpression* commonList = NULL;
 
-    SgStatement* funcEnd = funcStart->lastNodeOfStmt();
-    SgStatement* current = funcStart->lexNext();
-
-    while (current != funcEnd && current)
+    for (SgStatement* cur = funcStart->lexNext();
+         cur && cur != funcEnd; cur = cur->lexNext())
     {
-        if (current->variant() == COMM_STAT)
+        if (cur->variant() != COMM_STAT)
+            continue;
+
+        for (SgExpression* exp = cur->expr(0); exp; exp = exp->rhs())
         {
-            for (SgExpression* exp = current->expr(0); exp; exp = exp->rhs())
+            if (exp->variant() != COMM_LIST)
+                continue;
+
+            const char* id = exp->symbol() ? exp->symbol()->identifier() : NULL;
+            string existingName = id ? string(id) : string("spf_unnamed");
+            if (existingName == commonBlockName)
             {
-                if (exp->variant() == COMM_LIST)
-                {
-                    string existingName = exp->symbol() ?
-                        string(exp->symbol()->identifier()) :
-                        string("spf_unnamed");
-                    if (existingName == commonBlockName)
-                    {
-                        commonStat = current;
-                        commonList = exp;
-                        break;
-                    }
-                }
-            }
-            if (commonStat)
+                commonStat = cur;
+                commonList = exp;
                 break;
+            }
         }
-        current = current->lexNext();
+        if (commonStat)
+            break;
     }
 
     vector<SgExpression*> varRefs;
-    if (commonList)
+    for (SgSymbol* sym : symbols)
     {
-        SgExpression* varList = commonList->lhs();
-        if (varList)
-        {
-            auto extractSymbol = [](SgExpression* exp) -> SgSymbol* {
-                if (!exp) 
-                    return NULL;
-                if (exp->symbol()) 
-                    return exp->symbol();
-                if (exp->lhs() && exp->lhs()->symbol())
-                    return exp->lhs()->symbol();
-                return NULL;
-                };
-            if (varList->variant() == EXPR_LIST)
-            {
-                for (SgExpression* exp = varList; exp; exp = exp->rhs())
-                {
-                    SgExpression* varExp = exp->lhs();
-                    SgSymbol* sym = extractSymbol(varExp);
-                    if (sym)
-                    {
-                        varRefs.push_back(new SgVarRefExp(sym));
-                    }
-                }
-            }
-            else
-            {
-                for (SgExpression* varExp = varList; varExp; varExp = varExp->rhs())
-                {
-                    SgSymbol* sym = extractSymbol(varExp);
-                    if (sym)
-                    {
-                        varRefs.push_back(new SgVarRefExp(sym));
-                    }
-                }
-            }
-        }
+        if (!sym || sym->variant() != VARIABLE_NAME || string(sym->identifier()) == commonBlockName)
+            continue;
+        SgSymbol* symToAdd = new SgSymbol(VARIABLE_NAME, sym->identifier(), *sym->type(), *funcStart);
+        varRefs.push_back(new SgVarRefExp(symToAdd));
+    }
+    SgExpression* varList = makeExprList(varRefs, false);
+
+    SgStatement* insertAfter = FindLastDeclStatement(funcStart);
+    for (SgSymbol* sym : symbols)
+    {
+        SgStatement* declStmt = sym->makeVarDeclStmt();
+        if (!declStmt)
+            continue;
+
+        if (SgVarDeclStmt* vds = isSgVarDeclStmt(declStmt))
+            vds->setVariant(VAR_DECL_90);
+
+        declStmt->setFileName(funcStart->fileName());
+        declStmt->setFileId(funcStart->getFileId());
+        declStmt->setProject(funcStart->getProject());
+        declStmt->setlineNumber(getNextNegativeLineNumber());
+
+        insertAfter->insertStmtAfter(*declStmt, *funcStart);
+        insertAfter = declStmt;
+        statementsToRemove.insert(declStmt);
     }
 
     if (!commonList)
     {
-        current = funcStart->lexNext();
-        while (current != funcEnd && current)
-        {
-            if (current->variant() == COMM_STAT)
-            {
-                commonStat = current;
-                break;
-            }
-            current = current->lexNext();
-        }
-
         SgSymbol* commonSymbol = new SgSymbol(COMMON_NAME, commonBlockName.c_str());
-        commonList = new SgExpression(COMM_LIST, NULL, NULL, commonSymbol);
+        commonList = new SgExpression(COMM_LIST, varList, NULL, commonSymbol);
 
-        if (commonStat)
-        {
-            SgExpression* lastCommList = commonStat->expr(0);
-            if (lastCommList)
-            {
-                while (lastCommList->rhs())
-                    lastCommList = lastCommList->rhs();
-                lastCommList->setRhs(commonList);
-            }
-            else
-            {
-                commonStat->setExpression(0, commonList);
-            }
-        }
-        else
-        {
-            commonStat = new SgStatement(COMM_STAT);
-            commonStat->setFileName(declPlace->fileName());
-            commonStat->setFileId(declPlace->getFileId());
-            commonStat->setProject(declPlace->getProject());
-            commonStat->setlineNumber(getNextNegativeLineNumber());
-            commonStat->setExpression(0, commonList);
-
-            declPlace->insertStmtBefore(*commonStat, *declPlace->controlParent());
-        }
+        commonStat = new SgStatement(COMM_STAT);
+        commonStat->setFileName(funcStart->fileName());
+        commonStat->setFileId(funcStart->getFileId());
+        commonStat->setProject(funcStart->getProject());
+        commonStat->setlineNumber(getNextNegativeLineNumber());
+        commonStat->setExpression(0, commonList);
 
+        SgStatement* lastDecl = FindLastDeclStatement(funcStart);
+        lastDecl->insertStmtAfter(*commonStat, *funcStart);
+        statementsToRemove.insert(commonStat);
     }
-    varRefs.push_back(new SgVarRefExp(varSymbol));
-
-    if (varRefs.size() > 0)
+    else
     {
-        std::reverse(varRefs.begin(), varRefs.end());
-        SgExpression* varList = makeExprList(varRefs, false);
-
         commonList->setLhs(varList);
     }
 
-    return new SgExpression(VAR_REF, NULL, NULL, varSymbol, type->copyPtr());
 }
 
 static void TransformRightPart(SgStatement* st, SgExpression* exp, unordered_map<string, SgExpression*>& arrayToVariable, int& variableNumber) 
 {
     if (!exp)
-    {
         return;
-    }
-
     vector<SgExpression*> subnodes = { exp->lhs(), exp->rhs() };
 
     string expUnparsed;
     SgExpression* toAdd = NULL;
     if (exp->variant() == ARRAY_REF && CheckConstIndexes(exp->lhs()))
     {
-        cout << st->unparse() << endl;
+        expUnparsed = exp->unparse();
         if (arrayToVariable.find(expUnparsed) == arrayToVariable.end() && exp->symbol()->type()->baseType())
         {
             arrayToVariable[expUnparsed] = CreateVar(variableNumber, exp->symbol()->type()->baseType());  
         }
-        st->setExpression(1, arrayToVariable[expUnparsed]->copyPtr());
+        positionsToAdd.insert(declPlace);
+        SgSymbol* builder = arrayToVariable[expUnparsed]->symbol();
+        auto* sym = new SgSymbol(builder->variant(), builder->identifier(), builder->type(), st->controlParent());
+        auto* newVarExp = new SgVarRefExp(sym);
+        expToChange[st->fileName()].push_back({ st , st->copyPtr() });
+        st->setExpression(1, newVarExp);
         return;
     }
     for (int i = 0; i < 2; i++)
@@ -199,27 +211,30 @@ static void TransformRightPart(SgStatement* st, SgExpression* exp, unordered_map
         if (subnodes[i] && subnodes[i]->variant() == ARRAY_REF && subnodes[i]->symbol()->type()->baseType() && CheckConstIndexes(subnodes[i]->lhs()))
         {
             expUnparsed = subnodes[i]->unparse();
-            if (arrayToVariable.find(expUnparsed) == arrayToVariable.end())
-            {                
-                arrayToVariable[expUnparsed] = CreateVar(variableNumber, subnodes[i]->symbol()->type()->baseType());;
-            }
-            toAdd = arrayToVariable[expUnparsed]->copyPtr();
+            if (arrayToVariable.find(expUnparsed) == arrayToVariable.end())               
+                arrayToVariable[expUnparsed] = CreateVar(variableNumber, subnodes[i]->symbol()->type()->baseType());
+
+            positionsToAdd.insert(declPlace);
+            SgSymbol* builder = arrayToVariable[expUnparsed]->symbol();
+            auto* sym = new SgSymbol(builder->variant(), builder->identifier(), builder->type(), st->controlParent());
+            toAdd = new SgVarRefExp(sym);
             if (toAdd)
             {
                 if (i == 0)
                 {
+                    expToChange[st->fileName()].push_back({ st , st->copyPtr() });;
                     exp->setLhs(toAdd);
                 }
                 else
                 {
+                    expToChange[st->fileName()].push_back({ st , st->copyPtr() });;
                     exp->setRhs(toAdd);
                 }
             }
         }
         else
-        {
             TransformRightPart(st, subnodes[i], arrayToVariable, variableNumber);
-        }
+        
     }
 }
 
@@ -227,11 +242,14 @@ static void TransformLeftPart(SgStatement* st, SgExpression* exp, unordered_map<
 {
     if (exp->symbol()->type()->variant() == T_STRING)
         return;
+    if (changed.find(st) != changed.end())
+        return;
     string expUnparsed = exp->unparse();
     if (arrayToVariable.find(expUnparsed) == arrayToVariable.end() && exp->symbol()->type()->baseType())
     {
         arrayToVariable[expUnparsed] = CreateVar(variableNumber, exp->symbol()->type()->baseType());
     }
+    positionsToAdd.insert(declPlace);
     SgStatement* newStatement = new SgStatement(ASSIGN_STAT, NULL, NULL, arrayToVariable[expUnparsed]->copyPtr(), st->expr(1)->copyPtr(), NULL);
 
     newStatement->setFileId(st->getFileId());
@@ -240,9 +258,62 @@ static void TransformLeftPart(SgStatement* st, SgExpression* exp, unordered_map<
     newStatement->setlineNumber(getNextNegativeLineNumber());
     newStatement->setLocalLineNumber(st->lineNumber());
     st->insertStmtBefore(*newStatement, *st->controlParent());
+    changed.insert(st);
+    statementsToRemove.insert(newStatement);
 }
 
-void ArrayConstantPropagation(SgProject& project) 
+static void TransformBorder(SgStatement* st, SgExpression* exp, unordered_map<string, SgExpression*>& arrayToVariable, int& variableNumber)
+{
+    SgStatement* firstStatement = declPlace->lexPrev();
+    st = st->lexPrev();
+    string array = exp->unparse();
+    if (arrayToVariable.find(array) == arrayToVariable.end())
+        arrayToVariable[array] = CreateVar(variableNumber, exp->symbol()->type()->baseType());
+    while (st != firstStatement)
+    {
+        if (st->variant() == ASSIGN_STAT && arrayToVariable.find(st->expr(0)->unparse()) != arrayToVariable.end())
+        {
+            if (st->expr(1))
+            {
+                TransformRightPart(st, st->expr(1), arrayToVariable, variableNumber);
+            }
+            if (st->expr(0) && st->expr(0)->variant() == ARRAY_REF && CheckConstIndexes(st->expr(0)->lhs()) && arrayToVariable.find(st->expr(0)->unparse()) != arrayToVariable.end())
+                TransformLeftPart(st, st->expr(0), arrayToVariable, variableNumber);
+        }
+        st = st->lexPrev();
+    }
+}
+
+static void CheckVariable(SgStatement* st, SgExpression* exp, unordered_map<string, SgExpression*>& arrayToVariable, int& variableNumber)
+{
+    SgStatement* firstStatement = declPlace->lexPrev();
+    st = st->lexPrev();
+    string varName = exp->unparse();
+    while (st != firstStatement)
+    {
+        if (st->variant() == ASSIGN_STAT && st->expr(0)->symbol() == exp->symbol())
+        {
+            TransformRightPart(st, st->expr(1), arrayToVariable, variableNumber);
+            positionsToAdd.insert(declPlace);
+        }
+        if (st->variant() == ASSIGN_STAT && arrayToVariable.find(st->expr(0)->unparse()) != arrayToVariable.end())
+        {
+            if (st->expr(1))
+            {
+                TransformRightPart(st, st->expr(1), arrayToVariable, variableNumber);
+                positionsToAdd.insert(declPlace);
+            }
+            if (st->expr(0) && st->expr(0)->variant() == ARRAY_REF && CheckConstIndexes(st->expr(0)->lhs()) && arrayToVariable.find(st->expr(0)->unparse()) != arrayToVariable.end())
+            {
+                TransformLeftPart(st, st->expr(0), arrayToVariable, variableNumber);
+                positionsToAdd.insert(declPlace);
+            }
+        }
+        st = st->lexPrev();
+    }
+}
+
+void arrayConstantPropagation(SgProject& project) 
 {
     unordered_map<string, SgExpression*> arrayToVariable;
     int variableNumber = 0;
@@ -252,7 +323,7 @@ void ArrayConstantPropagation(SgProject& project)
 
         if (!file)
             continue;
-
+        SgFile::switchToFile(file->filename());
         const int funcNum = file->numberOfFunctions();
         for (int i = 0; i < funcNum; ++i)
         {
@@ -262,40 +333,48 @@ void ArrayConstantPropagation(SgProject& project)
 
             for (; st != lastNode; st = st->lexNext())
             {
-                if (st->variant() == ASSIGN_STAT)
-                {
-                    if (st->expr(1))
-                    {
-                        TransformRightPart(st, st->expr(1), arrayToVariable, variableNumber);
-                    }
-                    if (st->expr(0) && st->expr(0)->variant() == ARRAY_REF && CheckConstIndexes(st->expr(0)->lhs()))
-                    {
-                        TransformLeftPart(st, st->expr(0), arrayToVariable, variableNumber);
-                    }
-                }
-                else if (st->variant() == FOR_NODE)
+                if (st->variant() == FOR_NODE)
                 {
                     SgExpression* lowerBound = st->expr(0)->lhs();
                     SgExpression* upperBound = st->expr(0)->rhs();
+                    SgStatement* boundCopy = NULL;
                     string lowerBoundUnparsed = lowerBound->unparse(), upperBoundUnparsed = upperBound->unparse();
                     if (upperBound->variant() == ARRAY_REF && upperBound->symbol()->type()->baseType() && CheckConstIndexes(upperBound->lhs()))
                     {
-                        if (arrayToVariable.find(upperBoundUnparsed) == arrayToVariable.end())
-                        {
-                            arrayToVariable[upperBoundUnparsed] = CreateVar(variableNumber, upperBound->symbol()->type()->baseType());
-                        }
+                        boundCopy = st->copyPtr();
+                        TransformBorder(st, upperBound, arrayToVariable, variableNumber);
                         st->expr(0)->setRhs(arrayToVariable[upperBoundUnparsed]->copyPtr());
+                        expToChange[st->fileName()].push_back({ st ,boundCopy });;
+                        positionsToAdd.insert(declPlace);
                     }
+                    else if (upperBound->variant() == VAR_REF)
+                        CheckVariable(st, upperBound, arrayToVariable, variableNumber);
+
                     if (lowerBound->variant() == ARRAY_REF && lowerBound->symbol()->type()->baseType() && CheckConstIndexes(lowerBound->lhs()))
                     {
-                        if (arrayToVariable.find(lowerBoundUnparsed) == arrayToVariable.end())
-                        {
-                            arrayToVariable[lowerBoundUnparsed] = CreateVar(variableNumber, lowerBound->symbol()->type()->baseType());
-                        }
+                        boundCopy = st->copyPtr();
+                        TransformBorder(st, lowerBound, arrayToVariable, variableNumber);
                         st->expr(0)->setLhs(arrayToVariable[lowerBoundUnparsed]->copyPtr());
+                        expToChange[st->fileName()].push_back({ st , boundCopy });;
+                        positionsToAdd.insert(declPlace);
                     }
+                    else if (lowerBound->variant() == VAR_REF)
+                        CheckVariable(st, lowerBound, arrayToVariable, variableNumber);
                 }
             }
         }
     }
+    unordered_set<SgStatement*> funcStarts;
+    for (SgStatement* st : positionsToAdd)
+    {
+        SgFile::switchToFile(st->fileName());
+        SgStatement* scope = st->controlParent();
+        if (scope)
+            funcStarts.insert(scope);
+    }
+    for (const auto& st : funcStarts)
+    {
+        SgFile::switchToFile(st->fileName());
+        InsertCommonAndDeclsForFunction(st, variablesToAdd);
+    }
 }

src/ArrayConstantPropagation/propagation.h

@@ -1,4 +1,20 @@
 #pragma once
 #include "../Utils/SgUtils.h"
 
-void ArrayConstantPropagation(SgProject& project);
+#include <string>
+#include <vector>
+
+using namespace std;
+
+struct ExprRestoreEntry
+{
+    enum Kind { kStatementExpr, kExprChild };
+    Kind kind;
+    SgStatement* stmt;
+    int stmtExprIndex;
+    SgExpression* parent;
+    bool childIsRhs;
+    SgExpression* savedCopy;
+};
+
+void arrayConstantPropagation(SgProject& project);

src/CFGraph/CFGraph.cpp

@@ -1162,8 +1162,9 @@ map<FuncInfo*, vector<BBlock*>> buildCFG(const map<string, CommonBlock*>& common
     if (SgFile::switchToFile(oldFile) == -1)
         printInternalError(convertFileName(__FILE__).c_str(), __LINE__);
 
-    for (auto& [func, blocks] : result)
-        removedUnreachableBlocks(blocks);
+    if (!settings.withUnreachable) 
+        for (auto& [func, blocks] : result)
+            removedUnreachableBlocks(blocks);
 
     return result;
 }

src/CFGraph/CFGraph.h

@@ -105,23 +105,52 @@ namespace SAPFOR
 
     struct CFG_Settings
     {
+        enum setting { CFG_atLeastOneIterInLoop = 1, 
+                       CFG_withRD = 2, 
+                       CFG_withRegisters = 3,  
+                       CFG_withSPF = 4, 
+                       CFG_withDVM = 5, 
+                       CFG_withCallsInBlocks = 6, 
+                       CFG_withCallFrom = 7, 
+                       CFG_withDominators = 8, 
+                       CFG_withUnreachable = 9 };
+
         bool atLeastOneIterInLoop = false;
-        bool withRD = true;
-        bool withRegisters = false;
-        bool withSPF = false;
-        bool withDVM = false;
-        bool withCallsInBlocks = false; // separate each F_CALL to own BasicBlock
-        bool withCallFrom = true;
-        bool withDominators = true;
+        bool withRD =               false;
+        bool withRegisters =        false;
+        bool withSPF =              false;
+        bool withDVM =              false;
+        bool withCallsInBlocks =    false; // separate each F_CALL to own BasicBlock
+        bool withCallFrom =         false;
+        bool withDominators =       false;
+        bool withUnreachable =      false;
 
-        explicit CFG_Settings(int) { }
-
-        explicit CFG_Settings(bool atLeastOneIterInLoop = false, bool withRD = true, bool withRegisters = false, 
-                              bool withDVM = false, bool withSPF = false, bool withCallsInBlocks = false, 
-                              bool withCallFrom = true, bool withDominators = true) :
-            atLeastOneIterInLoop(atLeastOneIterInLoop), withRD(withRD), withRegisters(withRegisters), withDVM(withDVM), withSPF(withSPF), 
-            withCallsInBlocks(withCallsInBlocks), withCallFrom(withCallFrom), withDominators(withDominators)
-        { }
+        explicit CFG_Settings(const std::set<setting> &settings = { CFG_withRD, CFG_withCallFrom, CFG_withDominators })
+        {
+            for (auto& set : settings)
+            {
+                if (set == CFG_atLeastOneIterInLoop)
+                    atLeastOneIterInLoop = true;
+                else if (set == CFG_withRD)
+                    withRD = true;
+                else if (set == CFG_withRegisters)
+                    withRegisters = true;
+                else if (set == CFG_withSPF)
+                    withSPF = true;
+                else if (set == CFG_withDVM)
+                    withDVM = true;
+                else if (set == CFG_withCallsInBlocks)
+                    withCallsInBlocks = true;
+                else if (set == CFG_withCallFrom)
+                    withCallFrom = true;
+                else if (set == CFG_withDominators)
+                    withDominators = true;
+                else if (set == CFG_withUnreachable)
+                    withUnreachable = true;
+                else
+                    printInternalError(convertFileName(__FILE__).c_str(), __LINE__);
+            }
+        }
     };
 }
 

src/CFGraph/private_variables_analysis.cpp

@@ -200,20 +200,46 @@ static void fillOutForFunc(const FuncInfo* func, const vector<SAPFOR::BasicBlock
     outForFunc[func->funcName] = { defined, common_defined };
 }
 
-static void getDefsFromBlock(SAPFOR::BasicBlock* block, set<SAPFOR::Argument*>& res, 
+static bool isInstructionSpfParameter(SAPFOR::Instruction* instr)
+{
+    SgStatement* st = instr->getOperator();
+
+    // check if this operator is SPF(ANALYSIS(PARAMETER( )))
+    if (st && st->variant() == ASSIGN_STAT)
+    {
+        if (st->lineNumber() < 0 && st->numberOfAttributes())
+        {
+            for (int i = 0; i < st->numberOfAttributes(); ++i)
+            {
+                SgAttribute* attr = st->getAttribute(i);
+                SgStatement* attributeStatement = (SgStatement*)(attr->getAttributeData());
+                int type = st->attributeType(i);
+
+                if (type == SPF_PARAMETER_OP)
+                    return true;
+            }
+        }
+    }
+    return false;
+}
+
+static void getDefsFromBlock(SAPFOR::BasicBlock* block, set<SAPFOR::Argument*>& res,
                              const vector<pair<const Variable*, CommonBlock*>>& commonVars,
                              const FuncInfo* func)
 {
     vector<SAPFOR::Argument*> lastParamRef;
 
-    for (auto ir_block : block->getInstructions())
+    for (const auto &ir_block : block->getInstructions())
     {
         SAPFOR::Instruction* instr = ir_block->getInstruction();
+        if (isInstructionSpfParameter(instr))
+            continue;
+
         SAPFOR::CFG_OP instr_operation = instr->getOperation();
         if (instr_operation == SAPFOR::CFG_OP::PARAM)
         {
             SAPFOR::Argument* arg = instr->getArg1();
-            if(arg->getType() == SAPFOR::CFG_ARG_TYPE::VAR)
+            if (arg->getType() == SAPFOR::CFG_ARG_TYPE::VAR)
                 addPlaceWithDef(commonVars, func, arg, instr);
 
             lastParamRef.push_back(arg);
@@ -236,12 +262,20 @@ static void getDefsFromBlock(SAPFOR::BasicBlock* block, set<SAPFOR::Argument*>&
     int last_instr_num = block->getInstructions().back()->getNumber();
 
     for (const auto& def : block->getRD_Out())
+    {
         for (int place : def.second)
+        {
             if (place >= first_instr_num && place <= last_instr_num && def.first->getType() == SAPFOR::CFG_ARG_TYPE::VAR)
             {
+                SAPFOR::Instruction* instr = block->getInstructions()[place - first_instr_num]->getInstruction();
+                if (isInstructionSpfParameter(instr))
+                    continue;
+
                 res.insert(def.first);
-                addPlaceWithDef(commonVars, func, def.first, block->getInstructions()[place - first_instr_num]->getInstruction());
+                addPlaceWithDef(commonVars, func, def.first, instr);
             }
+        }
+    }
 }
 
 // recursively analyze FOR loops 
@@ -266,7 +300,7 @@ static set<SAPFOR::BasicBlock*> analyzeLoop(LoopGraph* loop, const set<SAPFOR::B
     SAPFOR::BasicBlock* head_block = NULL;
 
     int loop_start = loop->lineNum, loop_end = loop->lineNumAfterLoop;
-    for (auto bb : blocks)
+    for (const auto &bb : blocks)
     {
         if (!bb || (bb->getInstructions().size() == 0))
             continue;
@@ -287,6 +321,12 @@ static set<SAPFOR::BasicBlock*> analyzeLoop(LoopGraph* loop, const set<SAPFOR::B
         }
     }
 
+    if (currentLoop.empty()) // can't find loop IR - loop unreachable!
+    {
+        __spf_print(1, "Unreachable loop on %s:%d\n", current_file->filename(), loop_operator->lineNumber());
+        return currentLoop;
+    }
+
     if (!head_block)
         printInternalError(convertFileName(__FILE__).c_str(), __LINE__);
     
@@ -348,7 +388,7 @@ static set<SAPFOR::BasicBlock*> analyzeLoop(LoopGraph* loop, const set<SAPFOR::B
         getDefsFromBlock(*loop_it, changeValueOnExit, commonVars, func);
 
 
-    for (auto bb : currentLoop)
+    for (const auto &bb : currentLoop)
     {
         //fill LiveWhenLoopEnds
         bool has_next_outside_body = false;

src/CreateInterTree/CreateInterTree.cpp

@@ -17,7 +17,7 @@ using std::fstream;
 static long int getNextTag()
 {
     static long int INTERVAL_TAG = 0;
-    return INTERVAL_TAG++;
+    return -(INTERVAL_TAG++);
 }
 
 //Debug funcs
@@ -413,7 +413,7 @@ static void findIntervals(SpfInterval *interval, map<int, int> &labelsRef, map<i
         inter->lineFile = std::make_pair(currentSt->lineNumber(), currentSt->fileName());
         inter->parent = interval;
         inter->exit_levels.push_back(0);
-        inter->tag = getNextTag();
+        inter->tag = currentSt->lineNumber();//getNextTag();
         interval->nested.push_back(inter);
 
         findIntervals(inter, labelsRef, gotoStmts, currentSt);

src/DirectiveProcessing/insert_directive.cpp

@@ -853,12 +853,21 @@ static pair<string, string> getModuleRename(const set<SgStatement*>& allocatable
         return make_pair("", "");
 }
 
+static void doRename(string& str, const pair<string, string>& renamePair)
+{
+    auto it = str.find(renamePair.first);
+    if (it != string::npos)
+        if (str[it + renamePair.first.size()] == '(' && str[it - 1] == ' ')
+            str = str.replace(it, renamePair.first.size(), renamePair.second);
+}
+
 static pair<DIST::Array*, string>
 getNewDirective(const string &fullArrayName, 
                 const vector<string> &distrRules,
                 const vector<string> &alignRules,
                 const DataDirective &dataDir,
-                const set<SgStatement*>& allocatableStmts)
+                const set<SgStatement*>& allocatableStmts,
+                const pair<string, int>& position_decl)
 {
     string out = "";
     DIST::Array* outA = NULL;
@@ -877,7 +886,8 @@ getNewDirective(const string &fullArrayName,
 
     for (int i = 0; i < dataDir.alignRules.size(); ++i)
     {
-        if (dataDir.alignRules[i].alignArray->GetName() == fullArrayName)
+        auto alignArray = dataDir.alignRules[i].alignArray;
+        if (alignArray->GetName() == fullArrayName)
         {
             string rule = alignRules[i];
             if (allocatableStmts.size())
@@ -889,21 +899,21 @@ getNewDirective(const string &fullArrayName,
                     it = rule.find("ALIGN", it + 7);
                 }
                 
-                auto renamePair = getModuleRename(allocatableStmts, dataDir.alignRules[i].alignArray);
-                if (renamePair.first != "")
-                {
-                    it = rule.find(renamePair.first);
-                    if (it != string::npos)
-                        if (rule[it + renamePair.first.size()] == '(' && rule[it - 1] == ' ')
-                            rule = rule.replace(it, renamePair.first.size(), renamePair.second);
-                }
+                auto renamePair = getModuleRename(allocatableStmts, alignArray);
+                doRename(rule, renamePair);
+            }
+            else if (alignArray->GetLocation().first == DIST::l_COMMON)
+            {
+                auto symb = alignArray->GetDeclSymbol(position_decl);
+                if (symb->identifier() != alignArray->GetShortName())
+                    doRename(rule, make_pair(alignArray->GetShortName(), symb->identifier()));
             }
 
             out += "!DVM$ " + rule + "\n";
             if (!out_free_form)
                 out = splitDirective(out);
 
-            return make_pair(dataDir.alignRules[i].alignArray, out);
+            return make_pair(alignArray, out);
         }
     }
     
@@ -1743,7 +1753,7 @@ void insertDistributionToFile(SgFile *file, const char *fin_name, const DataDire
                             if (allocatableStmtsCopy.size())
                                 allocatableStmts = filterAllocateStats(file, allocatableStmtsCopy, currSymb->identifier());
    
-                            pair<DIST::Array*, string> dirWithArray = getNewDirective(fullArrayName, distrRules, alignRules, dataDir, allocatableStmts);
+                            pair<DIST::Array*, string> dirWithArray = getNewDirective(fullArrayName, distrRules, alignRules, dataDir, allocatableStmts, make_pair(st->fileName(), st->lineNumber()));
 
                             string toInsert = dirWithArray.second;
                             if (toInsert != "")
@@ -1975,20 +1985,27 @@ void insertDistributionToFile(SgFile *file, const char *fin_name, const DataDire
                 set<string> toInsertArrays;
                 for (auto &array : dynamicArraysLocal)
                 {
+                    string name = array->GetShortName();
+                    if (array->GetLocation().first == DIST::l_COMMON)
+                    {
+                        auto symb = array->GetDeclSymbol(make_pair(st->fileName(), st->lineNumber()));
+                        name = symb->identifier();
+                    }
+
                     if (extractDir)
                     {
-                        if (dynamicArraysAdded.find(array->GetShortName()) != dynamicArraysAdded.end())
+                        if (dynamicArraysAdded.find(name) != dynamicArraysAdded.end())
                         {
-                            dynamicArraysAdded.erase(array->GetShortName());
-                            toInsertArrays.insert(array->GetShortName());
+                            dynamicArraysAdded.erase(name);
+                            toInsertArrays.insert(name);
                         }
                     }
                     else
                     {
-                        if (dynamicArraysAdded.find(array->GetShortName()) == dynamicArraysAdded.end())
+                        if (dynamicArraysAdded.find(name) == dynamicArraysAdded.end())
                         {
-                            dynamicArraysAdded.insert(array->GetShortName());
-                            toInsertArrays.insert(array->GetShortName());
+                            dynamicArraysAdded.insert(name);
+                            toInsertArrays.insert(name);
                         }
                     }
                 }
@@ -2145,7 +2162,14 @@ void insertShadowSpecToFile(SgFile *file, const char *fin_name, const set<string
 
                     if (needToGen)
                     {
-                        string shadowSpecInsert = "!DVM$ SHADOW " + array->GetShortName() + "(";
+                        string name = array->GetShortName();
+                        if (array->GetLocation().first == DIST::l_COMMON)
+                        {
+                            auto symb = array->GetDeclSymbol(make_pair(st->fileName(), st->lineNumber()));
+                            name = symb->identifier();
+                        }
+
+                        string shadowSpecInsert = "!DVM$ SHADOW " + name + "(";
                         for (int k = 0; k < currSpec.size(); ++k)
                         {
                             char buf[256];
@@ -2157,7 +2181,7 @@ void insertShadowSpecToFile(SgFile *file, const char *fin_name, const set<string
                         shadowSpecInsert += ")\n";
 
                         shadowsSpecsString.push_back(shadowSpecInsert);
-                        pair<SgExpression*, SgExpression*> newSpec = genShadowSpec(file, make_pair(array->GetShortName(), currSpec));
+                        pair<SgExpression*, SgExpression*> newSpec = genShadowSpec(file, make_pair(name, currSpec));
                         if (newSpec.first == NULL || newSpec.second == NULL)
                             printInternalError(convertFileName(__FILE__).c_str(), __LINE__);
                         shadowsSpecs.push_back(newSpec);

src/DirectiveProcessing/shadow.cpp

@@ -26,6 +26,7 @@ using std::string;
 using std::vector;
 using std::pair;
 using std::make_pair;
+using SAPFOR::CFG_Settings;
 
 extern int debSh;
 
@@ -1672,9 +1673,12 @@ void GroupShadow(const map<string, vector<FuncInfo*>>& allFuncs,
         
             SgStatement* func = currF->funcPointer->GetOriginal();
 
-            auto cfg = buildCFGforCurrentFunc(func, SAPFOR::CFG_Settings(true, false, false, true, false, true, false), commonBlocks, allFuncs);
+            const auto settings = CFG_Settings({ CFG_Settings::CFG_atLeastOneIterInLoop, CFG_Settings::CFG_withDVM, 
+                                                 CFG_Settings::CFG_withCallsInBlocks, CFG_Settings::CFG_withUnreachable });
+            auto cfg = buildCFGforCurrentFunc(func, settings, commonBlocks, allFuncs);
             if (cfg.size() != 1)
                 printInternalError(convertFileName(__FILE__).c_str(), __LINE__);
+
             auto& blocks = cfg.begin()->second;
 
             //create reaching blocks

src/Distribution/Array.h

@@ -336,9 +336,24 @@ namespace Distribution
             if (pos != STRING::npos)
             {
                 name.erase(pos, shortName.size());
-                shortName = newName;
                 name += newName;
             }
+            else if (locationPos.first == l_COMMON) // name of array in common may be different
+            {
+                pos = name.rfind("_");
+                if (pos != STRING::npos)
+                {
+                    name.erase(pos + 1, shortName.size());
+                    name += newName;
+                }
+                else
+                {
+#if __SPF
+                    printInternalError(convertFileName(__FILE__).c_str(), __LINE__);
+#endif
+                }
+            }
+            shortName = newName;
             GenUniqKey();
         }
 
@@ -542,6 +557,44 @@ namespace Distribution
             return NULL; 
         }
 
+        Symbol* GetDeclSymbol(const PAIR<STRING, int>& position_decl) const
+        {
+            if (!IsArray() || locationPos.first != l_COMMON)
+                return declSymbol;
+
+            auto it = declPlacesSymbol.find(position_decl);
+            if (it != declPlacesSymbol.end())
+                return it->second;
+            else // find nearest
+            {
+                MAP<PAIR<STRING, int>, Symbol*> currFile;
+                for (auto& [position, symb] : declPlacesSymbol)
+                {
+                    if (position.first == position_decl.first)
+                        currFile[position] = symb;
+                }
+
+                PAIR<int, Symbol*> nearest = { (int)0, NULL };
+                const int needed_pos = position_decl.second;
+
+                for (auto& [position, symb] : currFile)
+                {
+                    if (nearest.second == NULL)
+                        nearest = { abs(position.second - needed_pos), symb };
+
+                    if (abs(position.second - needed_pos) < nearest.first)
+                        nearest = { abs(position.second - needed_pos), symb };
+                }
+
+                if (nearest.second)
+                    return nearest.second;
+#if __SPF
+                printInternalError(convertFileName(__FILE__).c_str(), __LINE__);
+#endif
+            }
+            return NULL;
+        }
+
         Symbol* GetDeclSymbol() const { return declSymbol; }
         void SetDeclSymbol(Symbol *s) { declSymbol = s; }
 

src/DvmhRegions/DvmhRegionInserter.cpp

@@ -1289,6 +1289,9 @@ static set<DIST::Array*>
 
             SgStatement* declStat = NULL;
 
+            if (realArray->GetLocation().first == DIST::l_PARAMETER)
+                continue;
+
             if (realArray->GetLocation().first == DIST::l_COMMON)
             {
                 commonArrays.insert(realArray);

src/GraphCall/graph_calls.cpp

@@ -723,7 +723,7 @@ static void fillIn(FuncInfo *currF, SgExpression *ex, const map<string, int> &pa
 {
     if (ex)
     {
-        if (!isInFuncPar && (ex->variant() == VAR_REF || isArrayRef(ex)))
+        if (!isInFuncPar && (ex->variant() == VAR_REF || ex->variant() == ARRAY_REF))
         {
             const char *name = ex->symbol()->identifier();
             if (name && name != string(""))
@@ -800,29 +800,58 @@ static void fillInOut(FuncInfo *currF, SgStatement *start, SgStatement *last, co
 
     static map<string, vector<int>> supportedKeyWordArg = { {"system_clock", { OUT_BIT, OUT_BIT, OUT_BIT } } };
 
-    map<string, int> parNames;
+    map<string, int> parNamesMain;
+    map<string, int> parNamesContains;
 
     for (int i = 0; i < currF->funcParams.identificators.size(); ++i)
-        parNames[currF->funcParams.identificators[i]] = i;
+        parNamesMain[currF->funcParams.identificators[i]] = i;
 
+    map<string, int>& parNames = parNamesMain;
+
+    bool isContainsFunctions = false;
     for (auto st = start; st != last; st = st->lexNext())
     {
-        if (st->variant() == CONTAINS_STMT)
-            break;
+        if (st->variant() == CONTAINS_STMT) {
+            isContainsFunctions = true;
+            continue;
+        }
+
+        if (isContainsFunctions) {
+            if (st->variant() == PROC_HEDR || st->variant() == FUNC_HEDR) {
+                parNamesContains = parNamesMain;
+                
+                SgProgHedrStmt* hedr = (SgProgHedrStmt*)st;
+
+                int numOfParams = hedr->numberOfParameters();
+                if (numOfParams > 0)
+                {
+                    for (int i = 0; i < numOfParams; ++i)
+                    {
+                        auto it = parNamesContains.find(hedr->parameter(i)->identifier());
+                        if (it != parNamesContains.end())
+                            parNamesContains.erase(it);
+                    }
+                }
+                parNames = parNamesContains;
+            }
+        }
 
         if (st->variant() == ENTRY_STAT)
             continue;
         
         if (isSgExecutableStatement(st) == NULL) {
-            checkInTypeDescription(st->expr(0), currF, parNames);
+            if (!isContainsFunctions)
+                checkInTypeDescription(st->expr(0), currF, parNames);
             continue;
         }
 
         if (st->lineNumber() <= 0)
             continue;
 
-        if (activeOps.size() && activeOps.find(st) == activeOps.end())
-            continue;
+        //XXX: use parameters removing in block ... isContainsFunctions ...
+        //TODO need to use IR for parameters checking
+        /*if (activeOps.size() && activeOps.find(st) == activeOps.end())
+            continue; */
 
         if (st->variant() == ASSIGN_STAT)
         {
@@ -851,7 +880,7 @@ static void fillInOut(FuncInfo *currF, SgStatement *start, SgStatement *last, co
             for (auto ex = read->itemList(); ex; ex = ex->rhs())
             {
                 SgExpression* item = ex->lhs();
-                if (item->variant() == VAR_REF || isArrayRef(item))
+                if (item && (item->variant() == VAR_REF || item->variant() == ARRAY_REF))
                 {
                     string symb = "";
                     if (item->symbol())
@@ -872,7 +901,7 @@ static void fillInOut(FuncInfo *currF, SgStatement *start, SgStatement *last, co
                         if (item->rhs())
                             queue.push(item->rhs());
 
-                        if (item->variant() == VAR_REF || isArrayRef(item))
+                        if (item->variant() == VAR_REF || item->variant() == ARRAY_REF)
                         {
                             string symb = "";
                             if (item->symbol())

src/ParallelizationRegions/ParRegions.cpp

@@ -24,6 +24,7 @@ using std::make_pair;
 using std::map;
 using std::set;
 using std::wstring;
+using std::tuple;
 
 extern void createMapLoopGraph(map<int, LoopGraph*> &sortedLoopGraph, const vector<LoopGraph*> *loopGraph);
 
@@ -954,4 +955,65 @@ void calculateLinesOfCode(vector<ParallelRegion*> &allRegions)
 
         __spf_print(1, "  Count of lines in region '%s' = %d\n", elem->GetName().c_str(), lineCounter);
     }
+}
+
+void propagateRegionInfo(map<tuple<int, string, string>, pair<DIST::Array*, DIST::ArrayAccessInfo*>>& declaredArrays,
+                         const map<DIST::Array*, set<DIST::Array*>>& arrayLinksByFuncCalls,
+                         const vector<ParallelRegion*> &parallelRegions)
+{
+    bool modified = true;
+    while (modified)
+    {
+        modified = false;
+        
+        for (auto &array_pair: declaredArrays)
+        {
+            auto array = array_pair.second.first;
+            if (array->GetLocation().first == DIST::l_PARAMETER)
+            {
+                set<DIST::Array*> realArrayRef;
+                getAllArrayRefs(array, array, realArrayRef, arrayLinksByFuncCalls);
+
+                auto regs = array->GetRegionsName();
+                for (auto& ref : realArrayRef)
+                {
+                    auto regsRef = ref->GetRegionsName();
+                    for (auto& reg : regsRef)
+                    {
+                        if (regs.count(reg) == 0)
+                        {
+                            array->SetRegionPlace(reg);
+                            modified = true;
+                        }
+                    }
+
+                }
+            }
+        }
+    }
+
+    bool hasNonDefaultReg = false;
+    for (auto& elem : parallelRegions)
+    {
+        string regName = elem->GetName();
+        convertToLower(regName);
+        if (regName != "default")
+            hasNonDefaultReg = true;
+    }
+
+    if (hasNonDefaultReg)
+    {
+        for (auto array : declaredArrays)
+        {
+            if (array.second.first->GetRegionsName().size() == 0)
+                array.second.first->SetDistributeFlag(DIST::NO_DISTR);
+            else if (array.second.first->GetRegionsName().size() == 1)
+            {
+                string regName = *array.second.first->GetRegionsName().begin();
+                convertToLower(regName);
+                if (regName == "default")
+                    array.second.first->SetDistributeFlag(DIST::NO_DISTR);
+            }
+        }
+    }
 }

src/ParallelizationRegions/ParRegions_func.h

@@ -10,3 +10,7 @@ int printParalleRegions(const char *fileName, std::vector<ParallelRegion*> &regi
 bool buildGraphFromUserDirectives(const std::vector<Statement*> &userDvmAlignDirs, DIST::GraphCSR<int, double, attrType> &G, DIST::Arrays<int> &allArrays, const std::map<DIST::Array*, std::set<DIST::Array*>> &arrayLinksByFuncCalls, const std::set<DIST::Array*>& alignedArrays, std::set<DIST::Array*>& addedArrays, const std::map<std::string, std::vector<FuncInfo*>>& funcsByFile);
 void clearRegionStaticData();
 void calculateLinesOfCode(std::vector<ParallelRegion*> &allRegions);
+
+void propagateRegionInfo(std::map<std::tuple<int, std::string, std::string>, std::pair<DIST::Array*, DIST::ArrayAccessInfo*>>& declaredArrays,
+                         const std::map<DIST::Array*, std::set<DIST::Array*>>& arrayLinksByFuncCall,
+                         const std::vector<ParallelRegion*>& parallelRegions);

src/ParallelizationRegions/merge_regions.cpp

@@ -0,0 +1,624 @@
+#include "leak_detector.h"
+
+#include <set>
+#include <map>
+#include "merge_regions.h"
+
+using std::map;
+using std::set;
+using std::pair;
+using std::string;
+using std::vector;
+
+//TODO: need to create new clause!!
+static void parseMergeDirective(const char *comment,
+                                vector<pair<string, string>> &parsed_mapping)
+{
+    while (comment)
+    {
+        auto *line_end = strchr(comment, '\n');
+
+        static const char prefix[] = "!!spf transform(merge_arrays(";
+        static const auto compare_chars = sizeof(prefix) - 1;
+
+        if (strlen(comment) >= compare_chars)
+        {
+            std::string comment_cmp(comment, compare_chars);
+            convertToLower(comment_cmp);
+
+            if (comment_cmp == prefix)
+            {
+                auto* pair_start = comment + compare_chars;
+                auto* comma = strchr(pair_start, ',');
+                if (comma)
+                {
+                    auto* close_br = strchr(comma + 1, ')');
+                    if (close_br)
+                    {
+                        parsed_mapping.emplace_back(
+                            string(pair_start, comma - pair_start),
+                            string(comma + 1, close_br - comma - 1));
+                    }
+                }
+            }
+        }
+
+        comment = line_end;
+
+        if (comment)
+            comment++;
+    }
+}
+
+static string getNonDefaultRegion(DIST::Array *a)
+{
+    string result;
+
+    if (!a)
+        return result;
+
+    for (const auto &reg_name : a->GetRegionsName())
+    {
+        if (reg_name != "default")
+        {
+            if (!result.empty())
+                printInternalError(convertFileName(__FILE__).c_str(), __LINE__);
+
+            result = reg_name;
+        }
+    }
+
+    return result;
+}
+
+static bool hasSameSizes(DIST::Array *a, DIST::Array *b)
+{
+    for (auto *array : {a, b})
+    {
+        for (const auto &p : array->GetSizes())
+        {
+            if (p.first < 0 || p.second < 0)
+                return false;
+        }
+    }
+
+    return a->GetSizes() == b->GetSizes() && a->GetTypeSize() == b->GetTypeSize();
+}
+
+static bool checkSimilarTemplates(vector<ParallelRegion *> &regions,
+                                  const map<string, string> &new_region_mapping)
+{
+    // new region -> old regions
+    map<string, set<string>> new_region_inverse_mapping;
+    for (const auto &p : new_region_mapping)
+        new_region_inverse_mapping[p.second].insert(p.first);
+
+    for (const auto &new_reg : new_region_inverse_mapping)
+    {
+        DIST::Array *template_array = nullptr;
+        string first_reg_name;
+
+        for (const auto &old_region_name : new_reg.second)
+        {
+            auto *old_reg = getRegionByName(regions, old_region_name);
+
+            if (!old_reg)
+                printInternalError(convertFileName(__FILE__).c_str(), __LINE__);
+
+            const auto &distr_rules = old_reg->GetDataDir().GetDistrRules();
+            if (distr_rules.size() != 1)
+                printInternalError(convertFileName(__FILE__).c_str(), __LINE__);
+
+            auto *current_template = distr_rules.front().first;
+
+            if (template_array)
+            {
+                if (!hasSameSizes(template_array, current_template))
+                {
+                    __spf_print(1, "Templates of %s and %s has different sizes\n",
+                                first_reg_name.c_str(),
+                                old_region_name.c_str());
+
+                    return false;
+                }
+                // else everything OK
+            }
+            else
+            {
+                template_array = current_template;
+                first_reg_name = old_region_name;
+            }
+        }
+    }
+
+    return true;
+}
+
+static bool hasSameAlignment(const std::set<const AlignRule *> &align_a,
+                             const std::set<const AlignRule *> &align_b)
+{
+    if (align_a.size() != 1 || align_b.size() != 1)
+        return false;
+
+    const auto *rule_a = *align_a.begin();
+    const auto *rule_b = *align_b.begin();
+
+    if (rule_a->alignRule != rule_b->alignRule)
+        return false;
+
+    return true;
+}
+
+static void printExpr(SgExpression *e, string pad)
+{
+    if (!e)
+        return;
+
+    __spf_print(1, "%s%d: %s\n", pad.c_str(), e->variant(), e->unparse());
+
+    printExpr(e->lhs(), pad + "  ");
+    printExpr(e->rhs(), pad + "  ");
+}
+
+static pair<vector<SgStatement *>, SgSymbol *> generateDeclaration(const string &array_name, const string &common_block_name,
+                                                                   const vector<pair<int, int>> &sizes, SgType *type, SgStatement *scope)
+{
+    auto *array_symbol = new SgSymbol(VARIABLE_NAME, array_name.c_str(), new SgType(T_ARRAY), scope);
+
+    auto *decl = new SgDeclarationStatement(VAR_DECL);
+
+    decl->setExpression(1, new SgTypeExp(*type));
+
+    SgExpression *subs = new SgExprListExp();
+
+    auto *array_ref = new SgArrayRefExp(*array_symbol, *subs);
+
+    for (int i = 0; i < sizes.size(); i++)
+    {
+        const auto &p = sizes[i];
+        auto *d = new SgExpression(DDOT, new SgValueExp(p.first), new SgValueExp(p.second));
+        subs->setLhs(d);
+
+        if (i + 1 < sizes.size())
+        {
+            subs->setRhs(new SgExprListExp());
+            subs = subs->rhs();
+        }
+    }
+
+    decl->setExpression(0, array_ref);
+
+    auto comm = new SgStatement(COMM_STAT);
+
+    comm->setExpression(0, new SgExpression(COMM_LIST,
+                                            new SgVarRefExp(array_symbol),
+                                            NULL,
+                                            new SgSymbol(COMMON_NAME, common_block_name.c_str())));
+
+    return {{decl, comm}, array_symbol};
+}
+
+static SgExpression* findExprWithVariant(SgExpression* exp, int variant)
+{
+    if (exp)
+    {
+        if (exp->variant() == variant)
+            return exp;
+
+        auto *l = findExprWithVariant(exp->lhs(), variant);
+        if (l)
+            return l;
+
+        auto *r = findExprWithVariant(exp->rhs(), variant);
+        if (r)
+            return r;
+    }
+
+    return NULL;
+}
+
+SgType* GetArrayType(DIST::Array *array)
+{
+    if (!array)
+        return NULL;
+
+    for (const auto& decl_place : array->GetDeclInfo())
+    {
+        if (SgFile::switchToFile(decl_place.first) != -1)
+        {
+            auto* decl = SgStatement::getStatementByFileAndLine(decl_place.first, decl_place.second);
+            if (decl)
+            {
+                for (int i = 0; i < 3; i++)
+                {
+                    auto* found_type = isSgTypeExp(findExprWithVariant(decl->expr(i), TYPE_OP));
+                    if (found_type)
+                        return found_type->type();
+                }
+            }
+        }
+    }
+
+    return NULL;
+}
+
+SgSymbol *insertDeclIfNeeded(const string &array_name,
+                             const string &common_block_name,
+                             DIST::Array *example_array,
+                             FuncInfo *dest,
+                             map<FuncInfo *, map<string, SgSymbol *>> &inserted_arrays)
+{
+    auto *type = GetArrayType(example_array);
+
+    if (!type)
+        printInternalError(convertFileName(__FILE__).c_str(), __LINE__);
+
+    if (SgFile::switchToFile(dest->fileName) == -1)
+        printInternalError(convertFileName(__FILE__).c_str(), __LINE__);
+
+    auto &by_func = inserted_arrays[dest];
+    auto it = by_func.find(array_name);
+
+    if (it != by_func.end())
+        return it->second;
+
+    SgStatement *st = dest->funcPointer;
+
+    auto *end = st->lastNodeOfStmt();
+
+    st = st->lexNext();
+
+    while (st != end && !isSgExecutableStatement(st))
+    {
+        st = st->lexNext();
+    }
+
+    auto generated = generateDeclaration(array_name, common_block_name,
+                                         example_array->GetSizes(),
+                                         type, dest->funcPointer);
+    for (auto *new_stmt : generated.first)
+        st->insertStmtBefore(*new_stmt, *dest->funcPointer);
+
+    by_func[array_name] = generated.second;
+
+    return generated.second;
+}
+
+static pair<string, string> createNewArray(DIST::Array *example_array, const string &base_name,
+                                           const map<string, vector<FuncInfo *>> &allFuncInfo,
+                                           map<FuncInfo *, map<string, SgSymbol *>> &inserted_arrays)
+{
+    auto common_block_name = base_name + "_merge_r";
+    auto array_name = base_name;
+
+    for (const auto &by_file : allFuncInfo)
+    {
+        for (auto *func_info : by_file.second)
+        {
+            if (func_info->isMain)
+            {
+                insertDeclIfNeeded(
+                    array_name,
+                    common_block_name,
+                    example_array,
+                    func_info,
+                    inserted_arrays);
+            }
+        }
+    }
+
+    return std::make_pair(array_name, common_block_name);
+}
+
+static void replaceArrayRec(SgExpression *e,
+                            const set<string> &arrays_to_replace,
+                            SgSymbol **func_symbol_hint,
+                            const pair<string, string> &replace_by,
+                            DIST::Array *example_array,
+                            FuncInfo *func,
+                            map<FuncInfo *, map<string, SgSymbol *>> &inserted_arrays)
+{
+    if (!e)
+        return;
+
+    if (isArrayRef(e) && arrays_to_replace.find(e->symbol()->identifier()) != arrays_to_replace.end())
+    {
+        if (!(*func_symbol_hint))
+        {
+            *func_symbol_hint = insertDeclIfNeeded(
+                replace_by.first, replace_by.second,
+                example_array,
+                func,
+                inserted_arrays);
+        }
+
+        e->setSymbol(*func_symbol_hint);
+    }
+
+    replaceArrayRec(
+        e->lhs(),
+        arrays_to_replace,
+        func_symbol_hint,
+        replace_by,
+        example_array,
+        func,
+        inserted_arrays);
+
+    replaceArrayRec(
+        e->rhs(),
+        arrays_to_replace,
+        func_symbol_hint,
+        replace_by,
+        example_array,
+        func,
+        inserted_arrays);
+}
+
+static void replaceRegion(SgStatement* st, const map<string, string> &new_region_mapping)
+{
+    if (!st)
+        return;
+
+    if(isSPF_stat(st) && st->variant() == SPF_PARALLEL_REG_DIR)
+    {
+        auto it = new_region_mapping.find(st->symbol()->identifier());
+
+        if (it != new_region_mapping.end())
+            st->setSymbol(*(new SgSymbol(CONST_NAME, it->second.c_str())));
+    }
+}
+
+void mergeRegions(vector<ParallelRegion *> &regions, const map<string, vector<FuncInfo *>> &allFuncInfo)
+{
+    for (const auto *region : regions)
+    {
+        __spf_print(1, "region %s\n", region->GetName().c_str());
+
+        const auto &dirs = region->GetDataDir();
+
+        __spf_print(1, "  distr rules: %d\n", dirs.distrRules.size());
+
+        const auto &currentVariant = region->GetCurrentVariant();
+
+        int distr_idx = 0;
+        for (const auto &distr : dirs.distrRules)
+        {
+            const auto &dist_rule = distr.second.back().distRule;
+
+            string sizes;
+            for (const auto &p : distr.first->GetSizes())
+            {
+                if (!sizes.empty())
+                    sizes.push_back(',');
+
+                sizes += std::to_string(p.first) + ":" + std::to_string(p.second);
+            }
+
+            __spf_print(1, "      DIST %s(%s)", distr.first->GetName().c_str(), sizes.c_str());
+            for (const auto &dim : dist_rule)
+                __spf_print(1, " %c", dim == dist::BLOCK ? 'B' : '*');
+
+            __spf_print(1, "\n");
+            distr_idx++;
+        }
+
+        __spf_print(1, "  align rules: %d\n", dirs.alignRules.size());
+
+        for (const auto &align : dirs.alignRules)
+        {
+            string sub_a, sub_b;
+
+            int i = 0;
+            for (const auto coefs : align.alignRule)
+            {
+                if (!sub_a.empty())
+                    sub_a.push_back(',');
+
+                sub_a += std::to_string(coefs.first) + "*i" +
+                         std::to_string(i) + "+" + std::to_string(coefs.second);
+
+                i++;
+            }
+
+            for (const auto coefs : align.alignRuleWith)
+            {
+                if (!sub_b.empty())
+                    sub_b.push_back(',');
+
+                sub_b += std::to_string(coefs.second.first) + "*i" +
+                         std::to_string(coefs.first) + "+" + std::to_string(coefs.second.second);
+            }
+
+            __spf_print(1, "      ALIGN %s(%s) WITH %s(%s)\n",
+                        align.alignArray->GetName().c_str(), sub_a.c_str(),
+                        align.alignWith->GetName().c_str(), sub_b.c_str());
+        }
+    }
+
+    // parse directives
+
+    // new array name -> current arrays
+    map<string, set<DIST::Array *>> arrays_to_merge;
+    map<DIST::Array *, set<const AlignRule *>> array_alignment;
+
+    for (const auto &by_file : allFuncInfo)
+    {
+        const auto current_file_name = by_file.first;
+
+        if (SgFile::switchToFile(current_file_name) == -1)
+            printInternalError(convertFileName(__FILE__).c_str(), __LINE__);
+
+        for (auto *func_info : by_file.second)
+        {
+            SgStatement *curr_stmt = func_info->funcPointer;
+            if (!curr_stmt)
+                continue;
+
+            auto *stmt_end = curr_stmt->lastDeclaration();
+            if (!stmt_end)
+                continue;
+
+            stmt_end = stmt_end->lexNext();
+
+            for (; curr_stmt && curr_stmt != stmt_end; curr_stmt = curr_stmt->lexNext())
+            {
+                if (curr_stmt->comments())
+                {
+                    vector<pair<string, string>> parsed_mapping;
+                    parseMergeDirective(curr_stmt->comments(), parsed_mapping);
+
+                    for (const auto &p : parsed_mapping)
+                    {
+                        auto *found_array = getArrayFromDeclarated(curr_stmt, p.first);
+                        if (found_array)
+                        {
+                            arrays_to_merge[p.second].insert(found_array);
+                            array_alignment[found_array] = {};
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    // find alignment rules for array
+
+    for (const auto *region : regions)
+    {
+        const auto &dirs = region->GetDataDir();
+
+        for (const auto &align : dirs.alignRules)
+        {
+            auto it = array_alignment.find(align.alignArray);
+
+            if (it != array_alignment.end())
+                it->second.insert(&align);
+        }
+    }
+
+    // old region -> new region
+    map<string, string> new_region_mapping;
+
+    // new array -> new region
+    map<string, string> arrays_new_region_mapping;
+    vector<string> created_region_names;
+
+    for (const auto &by_new_array : arrays_to_merge)
+    {
+        string new_region_name;
+        for (auto *current_array : by_new_array.second)
+        {
+            auto current_array_region = getNonDefaultRegion(current_array);
+            auto it = new_region_mapping.find(current_array_region);
+            if (it != new_region_mapping.end())
+            {
+                if (new_region_name.empty())
+                    new_region_name = it->second;
+                else if (new_region_name != it->second)
+                    printInternalError(convertFileName(__FILE__).c_str(), __LINE__);
+            }
+        }
+
+        if (new_region_name.empty())
+        {
+            new_region_name = "merged_reg_" + std::to_string(created_region_names.size());
+            created_region_names.push_back(new_region_name);
+        }
+
+        for (auto *current_array : by_new_array.second)
+        {
+            auto current_array_region = getNonDefaultRegion(current_array);
+            new_region_mapping[current_array_region] = new_region_name;
+        }
+
+        arrays_new_region_mapping[by_new_array.first] = new_region_name;
+    }
+
+    if (!checkSimilarTemplates(regions, new_region_mapping))
+        printInternalError(convertFileName(__FILE__).c_str(), __LINE__);
+
+    map<FuncInfo *, map<string, SgSymbol *>> inserted_arrays;
+
+    for (const auto &by_dest_array : arrays_to_merge)
+    {
+        const auto &copy_arrays = by_dest_array.second;
+
+        if (copy_arrays.empty())
+            printInternalError(convertFileName(__FILE__).c_str(), __LINE__);
+
+        auto *first_element = *copy_arrays.begin();
+        auto first_elem_rules_it = array_alignment.find(first_element);
+
+        if (first_elem_rules_it == array_alignment.end())
+            continue;
+
+        const auto &first_elem_rules = first_elem_rules_it->second;
+
+        for (auto *array_to_merge : copy_arrays)
+        {
+            auto array_rules_it = array_alignment.find(array_to_merge);
+
+            if (array_rules_it == array_alignment.end())
+                printInternalError(convertFileName(__FILE__).c_str(), __LINE__);
+
+            const auto &array_rules = array_rules_it->second;
+
+            if (!hasSameSizes(array_to_merge, first_element) || !hasSameAlignment(first_elem_rules, array_rules))
+            {
+                __spf_print(1, "Arrays %s and %s has different sizes or align rules\n",
+                            array_to_merge->GetName().c_str(),
+                            first_element->GetName().c_str());
+
+                printInternalError(convertFileName(__FILE__).c_str(), __LINE__);
+            }
+        }
+
+        __spf_print(1, "merge into %s (%s):\n", by_dest_array.first.c_str(), arrays_new_region_mapping[by_dest_array.first].c_str());
+        for (auto *array_to_merge : copy_arrays)
+            __spf_print(1, "%s\n", array_to_merge->GetName().c_str());
+
+        auto created_array_info = createNewArray(first_element, by_dest_array.first, allFuncInfo, inserted_arrays);
+
+        set<string> arrays_to_replace;
+        for (auto *array_to_merge : copy_arrays)
+            arrays_to_replace.insert(array_to_merge->GetShortName());
+
+        for (const auto &by_file : allFuncInfo)
+        {
+            if (SgFile::switchToFile(by_file.first) == -1)
+                printInternalError(convertFileName(__FILE__).c_str(), __LINE__);
+
+            for (auto *func_info : by_file.second)
+            {
+                SgSymbol *func_symbol_hint = nullptr;
+                SgStatement *st = func_info->funcPointer;
+
+                auto *func_end = st->lastNodeOfStmt();
+
+                st = st->lexNext();
+
+                while (st && !isSgExecutableStatement(st) && st != func_end)
+                    st = st->lexNext();
+
+                while (st && st != func_end)
+                {
+                    for (int i = 0; i < 3; i++)
+                    {
+                        replaceArrayRec(
+                            st->expr(i),
+                            arrays_to_replace,
+                            &func_symbol_hint,
+                            created_array_info,
+                            first_element,
+                            func_info,
+                            inserted_arrays);
+                    }
+
+                    replaceRegion(st, new_region_mapping);
+
+                    st = st->lexNext();
+                }
+            }
+        }
+    }
+}

src/ParallelizationRegions/merge_regions.h

@@ -0,0 +1,8 @@
+#include "../GraphCall/graph_calls.h"
+#include "ParRegions.h"
+
+#include <string>
+#include <vector>
+#include <map>
+
+void mergeRegions(std::vector<ParallelRegion*> &regions, const std::map<std::string, std::vector<FuncInfo*>> &allFuncInfo);

src/ParallelizationRegions/resolve_par_reg_conflicts.cpp

@@ -19,6 +19,7 @@
 #include "SgUtils.h"
 #include "expr_transform.h"
 #include "FunctionPurifying/function_purifying.h"
+#include "uniq_name_creator.h"
 
 using std::map;
 using std::pair;
@@ -71,7 +72,7 @@ static bool isSPF_reg(SgStatement *st)
     return st->variant() == SPF_PARALLEL_REG_DIR || st->variant() == SPF_END_PARALLEL_REG_DIR;
 }
 
-static const vector<const Variable*> getArraySynonyms(DIST::Array *array)
+const vector<const Variable*> getArraySynonyms(DIST::Array *array)
 {
     auto arrayBlock = allUsedCommonArrays.find(array);
     if (arrayBlock == allUsedCommonArrays.end())
@@ -127,15 +128,16 @@ static string getStringDeclaration(SgSymbol *symb)
     return decl;
 }
 
-static void insertStringDeclarations(SgStatement *insertPlace, DIST::Array *array)
+static void insertStringDeclarations(SgStatement *insertPlace, DIST::Array *array, UniqueNameCreator& unique_name_creator)
 {
     auto varsOnPos = getArraySynonyms(array);
     if (varsOnPos.size() && varsOnPos[0]->getName() == array->GetShortName())
     {
+        string newArrName, commName;
+        unique_name_creator.GetUniqueName(array, newArrName, commName);
         SgSymbol *varSymb = varsOnPos[0]->getSymbol();
         string varName = varSymb->identifier();
-        string newName = varName + "_c";
-        varSymb->changeName(newName.c_str());
+        varSymb->changeName(newArrName.c_str());
         string decl = getStringDeclaration(varsOnPos[0]->getSymbol());
         varSymb->changeName(varName.c_str());
         insertPlace->addComment(decl.c_str());
@@ -662,12 +664,11 @@ static void replaceFuncCalls(const ParallelRegionLines &lines, const map<string,
 static map<string, map<DIST::Array*, SgStatement*>> createdCommonBlocks; // file -> array -> new common statement
 static map<string, map<DIST::Array*, pair<SgSymbol*, SgSymbol*>>> createdCommonArrays; // file -> array -> (orig, copy)
 
-static SgStatement* createCommonBlock(SgFile *file, DIST::Array *array)
+static SgStatement* createCommonBlock(SgFile *file, DIST::Array *array, UniqueNameCreator& unique_name_creator)
 {
-    auto varsOnPos = getArraySynonyms(array);
-    if (!varsOnPos.size())
-        printInternalError(convertFileName(__FILE__).c_str(), __LINE__);
+    string newArrName, commBlockName;
 
+    unique_name_creator.GetUniqueName(array, newArrName, commBlockName);
     string fileName = file->filename();
 
     if (SgFile::switchToFile(fileName) != -1)
@@ -683,7 +684,6 @@ static SgStatement* createCommonBlock(SgFile *file, DIST::Array *array)
             // creating new common-block statement
             //TODO: consistence with declaration
             //string commBlockName = checkSymbNameAndCorrect(array->GetShortName() + "_r");
-            string commBlockName = array->GetShortName() + "_r";
             SgStatement *commDecl = new SgStatement(COMM_STAT);
 
             SgSymbol *commSymb = new SgSymbol(VARIABLE_NAME, commBlockName.c_str());
@@ -705,7 +705,6 @@ static SgStatement* createCommonBlock(SgFile *file, DIST::Array *array)
             {
                 //TODO: consistence with declaration
                 //string newArrName = checkSymbNameAndCorrect(varsOnPos[0]->getName() + "_c");
-                string newArrName = varsOnPos[0]->getName() + "_c";
 
                 newArrSymb = new SgSymbol(VARIABLE_NAME, newArrName.c_str(), file->firstStatement());
                 SgType *type = new SgType(T_ARRAY);
@@ -751,7 +750,7 @@ static SgStatement* createCommonBlock(SgFile *file, DIST::Array *array)
 // func -> arrays; funcs where new common statement inserted
 static map<FuncInfo*, set<DIST::Array*>> insertedCommonBlocks;
 
-static void insertCommonBlock(FuncInfo *func, DIST::Array *array)
+static void insertCommonBlock(FuncInfo *func, DIST::Array *array, UniqueNameCreator& unique_name_creator)
 {
     SgFile *file = func->funcPointer->GetOriginal()->getFile();
     SgStatement *insertPlace = NULL;
@@ -767,7 +766,7 @@ static void insertCommonBlock(FuncInfo *func, DIST::Array *array)
     if (!insertPlace)
         insertPlace = func->funcPointer->GetOriginal();
 
-    SgStatement *commDecl = createCommonBlock(file, array);
+    SgStatement *commDecl = createCommonBlock(file, array, unique_name_creator);
     SgStatement *copyDecl = commDecl->copyPtr();
 
     auto st = insertPlace->controlParent();
@@ -779,7 +778,7 @@ static void insertCommonBlock(FuncInfo *func, DIST::Array *array)
     insertPlace->lexNext()->setlineNumber(nextLine);
 
     // create declaration via comment
-    insertStringDeclarations(insertPlace->lexNext(), array);
+    insertStringDeclarations(insertPlace->lexNext(), array, unique_name_creator);
 }
 
 // file -> lines -> arrays; lines where arrays copying is inserted
@@ -1097,6 +1096,7 @@ pair<SgSymbol*, SgSymbol*> copyArray(const pair<string, int> &place,
 static void copyFunction(ParallelRegion *region,
                          FuncInfo *func,
                          const map<string, FuncInfo*> &funcMap,
+                         UniqueNameCreator& unique_name_creator,
                          const string &suffix = "")
 {
     if (SgFile::switchToFile(func->fileName) != -1)
@@ -1146,14 +1146,14 @@ static void copyFunction(ParallelRegion *region,
             if (origStat->variant() == COMM_STAT)
             {
                 for (auto &arrayBlock : allUsedCommonArrays)
-                    createCommonBlock(file, arrayBlock.first);
+                    createCommonBlock(file, arrayBlock.first, unique_name_creator);
 
                 auto usedCommonArrays = region->GetUsedCommonArrays().find(func);
                 if (usedCommonArrays != region->GetUsedCommonArrays().end())
                 {
                     for (auto &arrayLines : usedCommonArrays->second)
                     {
-                        SgStatement *commDecl = createCommonBlock(file, arrayLines.first);
+                        SgStatement *commDecl = createCommonBlock(file, arrayLines.first, unique_name_creator);
                         SgStatement *copyDecl = commDecl->copyPtr();
 
                         while (!isSgExecutableStatement(copyStat) || isSPF_stat(copyStat))
@@ -1163,7 +1163,7 @@ static void copyFunction(ParallelRegion *region,
                         copyStat->insertStmtAfter(*copyDecl, *copyStat->controlParent());
 
                         // making declaration of new common array symbol via comment through files
-                        insertStringDeclarations(copyStat->lexNext(), arrayLines.first);
+                        insertStringDeclarations(copyStat->lexNext(), arrayLines.first, unique_name_creator);
                     }
 
                     auto it = createdCommonArrays.find(file->filename());
@@ -1619,6 +1619,8 @@ int resolveParRegions(vector<ParallelRegion*> &regions, const map<string, vector
     map<string, FuncInfo*> funcMap;
     createMapOfFunc(allFuncInfo, funcMap);
 
+    UniqueNameCreator unique_name_creator(allFuncInfo);
+
     if (sharedMemoryParallelization == 0)
     {
         map<string, map<int, set<string>>> copied;
@@ -1688,7 +1690,7 @@ int resolveParRegions(vector<ParallelRegion*> &regions, const map<string, vector
                                 if (itt == it->second.end() && arrayBlock.first->GetShortName() == varsOnPos[0]->getName())
                                 {
                                     // need to insert common-block
-                                    insertCommonBlock(func, arrayBlock.first);
+                                    insertCommonBlock(func, arrayBlock.first, unique_name_creator);
                                     it->second.insert(arrayBlock.first);
                                 }
                             }
@@ -1781,7 +1783,7 @@ int resolveParRegions(vector<ParallelRegion*> &regions, const map<string, vector
                         if (itt == it->second.end() && arrayBlock.first->GetShortName() == varsOnPos[0]->getName())
                         {
                             // need to insert common-block
-                            insertCommonBlock(func, arrayBlock.first);
+                            insertCommonBlock(func, arrayBlock.first, unique_name_creator);
                             it->second.insert(arrayBlock.first);
                         }
                     }
@@ -1813,7 +1815,7 @@ int resolveParRegions(vector<ParallelRegion*> &regions, const map<string, vector
                     if (usedCommonArrays != region->GetUsedCommonArrays().end())
                     {
                         for (auto &arrayBlock : allUsedCommonArrays)
-                            createCommonBlock(file, arrayBlock.first);
+                            createCommonBlock(file, arrayBlock.first, unique_name_creator);
 
                         auto it = insertedCommonBlocks.find(func);
                         if (it == insertedCommonBlocks.end())
@@ -1825,7 +1827,7 @@ int resolveParRegions(vector<ParallelRegion*> &regions, const map<string, vector
                             if (itt == it->second.end())
                             {
                                 // need to insert common-block
-                                insertCommonBlock(func, arrayLines.first);
+                                insertCommonBlock(func, arrayLines.first, unique_name_creator);
                                 it->second.insert(arrayLines.first);
 
                                 // replace common arrays to new common arrays in executable code section
@@ -1858,7 +1860,7 @@ int resolveParRegions(vector<ParallelRegion*> &regions, const map<string, vector
                     // need copy function for every region, the exeption is defalut region
                     for (auto &regionId : func->callRegions)
                         if (regionId)
-                            copyFunction(getRegionById(regions, regionId), func, funcMap, string("_r") + to_string(regionId));
+                            copyFunction(getRegionById(regions, regionId), func, funcMap, unique_name_creator, string("_r") + to_string(regionId));
                 }
             }
         }

src/ParallelizationRegions/resolve_par_reg_conflicts.h

@@ -21,4 +21,6 @@ std::pair<SgSymbol*, SgSymbol*> copyArray(const std::pair<std::string, int>& pla
                                           const std::string& suffix,
                                           std::string& filename,
                                           std::map<std::string, std::map<int, std::set<std::string>>>& newDeclsToInclude,
-                                          std::map<std::string, std::map<int, std::set<std::string>>>& copied);
+                                          std::map<std::string, std::map<int, std::set<std::string>>>& copied);
+
+const std::vector<const Variable*> getArraySynonyms(DIST::Array* array);

src/ParallelizationRegions/uniq_name_creator.cpp

@@ -0,0 +1,98 @@
+#include "leak_detector.h"
+
+#include <set>
+#include <map>
+#include <string>
+
+#include "SgUtils.h"
+#include "uniq_name_creator.h"
+#include "resolve_par_reg_conflicts.h"
+
+using namespace::std;
+
+static const string COMMON_ARRAY_SUFFIX = "_c";
+static const string COMMON_BLOCK_SUFFIX = "_r";
+
+void UniqueNameCreator::GetSymbolsRec(SgExpression* exp, set<string>& add_to)
+{
+    if (!exp)
+        return;
+
+    if (isArrayRef(exp) && exp->symbol() && exp->symbol()->identifier())
+        add_to.emplace(exp->symbol()->identifier());
+
+    GetSymbolsRec(exp->lhs(), add_to);
+    GetSymbolsRec(exp->rhs(), add_to);
+}
+
+void UniqueNameCreator::FillDeclarations()
+{
+    allDeclarations.clear();
+    auto* file_before = current_file;
+
+    for (const auto& by_file : funcInfo)
+    {
+        if (SgFile::switchToFile(by_file.first) != -1)
+        {
+            for (const auto* by_func : by_file.second)
+            {
+                SgStatement* st = by_func->funcPointer;
+
+                if (st)
+                    st = st->lexNext();
+
+                while (st)
+                {
+                    for (int i = 0; i < 3; i++)
+                        GetSymbolsRec(st->expr(i), allDeclarations);
+
+                    st = st->lexNext();
+                }
+            }
+        }
+        else
+            printInternalError(convertFileName(__FILE__).c_str(), __LINE__);
+    }
+
+    SgFile::switchToFile(file_before->filename());
+    declarationsAnalyzed = true;
+}
+
+void UniqueNameCreator::GetUniqueName(DIST::Array* array, string& array_name, string& common_block_name)
+{
+    auto varsOnPos = getArraySynonyms(array);
+    if (!varsOnPos.size())
+        printInternalError(convertFileName(__FILE__).c_str(), __LINE__);
+
+    auto array_plain_name = varsOnPos[0]->getName();
+
+    auto it = generatedNames.find(array);
+    if (it != generatedNames.end())
+    {
+        array_name.assign(it->second.first);
+        common_block_name.assign(it->second.second);
+        return;
+    }
+
+    if (!declarationsAnalyzed)
+        FillDeclarations();
+
+    int v = 1;
+    auto created_array_name = array_plain_name + COMMON_ARRAY_SUFFIX;
+    auto created_common_name = array_plain_name + COMMON_BLOCK_SUFFIX;
+
+    while (allDeclarations.find(created_array_name) != allDeclarations.end() ||
+        allDeclarations.find(created_common_name) != allDeclarations.end())
+    {
+        created_array_name = array_plain_name + "_v" + std::to_string(v) + COMMON_ARRAY_SUFFIX;
+        created_common_name = array_plain_name + "_v" + std::to_string(v) + COMMON_BLOCK_SUFFIX;
+        v++;
+    }
+
+    allDeclarations.insert(created_array_name);
+    allDeclarations.insert(created_common_name);
+    generatedNames.emplace(array, std::make_pair(created_array_name, created_common_name));
+
+    array_name.assign(created_array_name);
+    common_block_name.assign(created_common_name);
+}

src/ParallelizationRegions/uniq_name_creator.h

@@ -0,0 +1,26 @@
+#pragma once
+
+#include <map>
+#include <set>
+#include <string>
+#include "GraphCall/graph_calls.h"
+
+class UniqueNameCreator
+{
+    std::map<std::string, std::vector<FuncInfo*>> funcInfo;
+    std::set<std::string> allDeclarations;
+    bool declarationsAnalyzed = false;
+    std::map<const DIST::Array*, std::pair<std::string, std::string>> generatedNames;
+
+    static void GetSymbolsRec(SgExpression* exp, std::set<std::string>& add_to);
+    void FillDeclarations();
+
+public:
+    UniqueNameCreator(const std::map<std::string, std::vector<FuncInfo*>>& allFuncInfo)
+    {
+        declarationsAnalyzed = false;
+        funcInfo = allFuncInfo;
+    }
+
+    void GetUniqueName(DIST::Array* array, std::string& array_name, std::string& common_block_name);
+};

src/Predictor/PredictScheme.cpp

@@ -33,6 +33,7 @@ using std::set;
 using std::ofstream;
 using std::pair;
 using std::tuple;
+using SAPFOR::CFG_Settings;
 
 using json = nlohmann::json;
 
@@ -507,7 +508,8 @@ static void parallelDir(const map<DIST::Array*, int>& byPos, SgExpression* spec,
     if (currF == NULL)
         printInternalError(convertFileName(__FILE__).c_str(), __LINE__);
 
-    auto cfg = buildCFGforCurrentFunc(func, SAPFOR::CFG_Settings(true, false, false, true, false, false, true), commonBlocks, allFuncInfo);
+    const auto settings = CFG_Settings({ CFG_Settings::CFG_atLeastOneIterInLoop, CFG_Settings::CFG_withSPF, CFG_Settings::CFG_withDominators });
+    auto cfg = buildCFGforCurrentFunc(func, settings, commonBlocks, allFuncInfo);
     //TODO IP analysis
         
     unsigned countOfAccess = 0;

src/PrivateAnalyzer/private_arrays_search.cpp

@@ -1,3 +1,4 @@
+#include <algorithm>
 #include <map>
 #include <unordered_set>
 #include <unordered_map>
@@ -6,16 +7,26 @@
 #include <numeric>
 #include <iostream>
 
+#include "ArrayConstantPropagation/propagation.h"
+#include "CFGraph/CFGraph.h"
+#include "Distribution/Array.h"
+#include "graph_loops.h"
 #include "private_arrays_search.h"
 #include "range_structures.h"
 #include "region.h"
 #include "SgUtils.h"
-#include "graph_loops.h"
-#include "CFGraph/CFGraph.h"
 #include "utils.h"
+#include "Utils/AstWrapper.h"
 
 using namespace std;
 
+extern std::map<std::tuple<int, std::string, std::string>, std::pair<DIST::Array*, DIST::ArrayAccessInfo*>> declaredArrays;
+
+extern unordered_set<SgStatement*> statementsToRemove;
+extern unordered_map<string, vector<pair<SgStatement*, SgStatement*>>> expToChange;
+
+static unordered_set<Region*> collapsed;
+
 static void RemoveEmptyPoints(ArrayAccessingIndexes& container)
 {
     ArrayAccessingIndexes resultContainer;
@@ -30,10 +41,9 @@ static void RemoveEmptyPoints(ArrayAccessingIndexes& container)
                 points.push_back(arrayPoint);
         }
 
-        if (points.size() < accessingSet.GetElements().size() && !points.empty())
+        if (!points.empty())
             resultContainer[arrayName] = points;
-
-        if (points.empty())
+        else
             toRemove.insert(arrayName);
     }
 
@@ -49,41 +59,81 @@ static void Collapse(Region* region)
     if (region->getBasickBlocks().empty())
         return;
 
-    for (auto& [arrayName, arrayRanges] : region->getHeader()->array_out)
+    bool firstRegion = true;
+    for (Region* basickBlock : region->getBasickBlocks())
     {
-        for (Region* byBlock : region->getBasickBlocks())
+        if (basickBlock->getNextRegions().empty())
         {
-            AccessingSet intersection = byBlock->array_def[arrayName].Intersect(arrayRanges);
-            region->array_def[arrayName] = region->array_def[arrayName].Union(intersection);
+            if (firstRegion)
+            {
+                region->array_def = basickBlock->array_out;
+                firstRegion = false;
+            }
+            else
+            {
+                unordered_set<string> toErease;
+                for (auto& [arrayName, arrayRanges] : region->array_def)
+                {
+                    if (basickBlock->array_out.find(arrayName) != basickBlock->array_out.end())
+                        arrayRanges = arrayRanges.Intersect(basickBlock->array_out[arrayName]);
+                    else
+                    {
+                        arrayRanges = AccessingSet();
+                        toErease.insert(arrayName);
+                    }
+                }
+                for (string arrayName : toErease)
+                    region->array_def.erase(arrayName);
+            }
         }
     }
 
-    for (auto& byBlock : region->getBasickBlocks()) 
-    {
-        for (auto& [arrayName, arrayRanges] : byBlock->array_use)
-        {
-            AccessingSet diff = byBlock->array_use[arrayName].Diff(byBlock->array_in[arrayName]);
-            region->array_use[arrayName] = region->array_use[arrayName].Union(diff);
-        }
-    }
+    RegionInstruction instruction;
+    instruction.def = move(region->array_def);
+
 
-    ArrayAccessingIndexes useUnion;
     for (auto& byBlock : region->getBasickBlocks())
-        for (auto& [arrayName, arrayRanges] : byBlock->array_use)
-            useUnion[arrayName] = useUnion[arrayName].Union(byBlock->array_use[arrayName]);
+    {
+        for (auto& instruction : byBlock->instructions)
+        {
+            for (auto& [arrayName, _] : instruction.use)
+            {
+                AccessingSet diff = instruction.use[arrayName].Diff(instruction.in[arrayName]);
+                region->array_use[arrayName] = region->array_use[arrayName].Union(diff);
+            }
+        }
+    }
 
-    region->array_priv = region->array_use;
-    
-    for (Region* prevBlock : region->getHeader()->getPrevRegions()) 
+    ArrayAccessingIndexes useUnionB;
+    for (auto& byBlock : region->getBasickBlocks())
+        for (auto& instruction : byBlock->instructions)
+            for (auto& [arrayName, _] : instruction.use)
+                useUnionB[arrayName] = useUnionB[arrayName].Union(instruction.use[arrayName]);
+
+    for (auto& [arrayName, _] : useUnionB)
+        region->array_priv[arrayName] = useUnionB[arrayName].Diff(region->array_use[arrayName]);
+
+    instruction.use = move(region->array_use);
+
+    for (Region* prevBlock : region->getHeader()->getPrevRegions())
+    {
         prevBlock->replaceInNextRegions(region, region->getHeader());
-    
+        region->addPrevRegion(prevBlock);
+    }
+
     for (Region* nextBlock : region->getHeader()->getNextRegions())
+    {
         nextBlock->replaceInPrevRegions(region, region->getHeader());
+        region->addNextRegion(nextBlock);
+    }
+    region->instructions.push_back(instruction);
+
 }
 
-static void SolveDataFlowIteratively(Region* DFG) 
+static void SolveDataFlowIteratively(Region* DFG)
 {
-    unordered_set<Region*> worklist(DFG->getBasickBlocks());
+    auto blocks = DFG->getBasickBlocks();
+    std::unordered_set<Region*> worklist(blocks.begin(), blocks.end());
     do
     {
         Region* b = *worklist.begin();
@@ -101,13 +151,13 @@ static void SolveDataFlowIteratively(Region* DFG)
                 if (prevBlock->array_out.empty())
                 {
                     newIn.clear();
-                    continue;
+                    break;
                 }
 
                 for (const auto& [arrayName, accessSet] : prevBlock->array_out)
                 {
                     if (newIn.find(arrayName) != newIn.end())
-                        newIn[arrayName] = newIn[arrayName].Intersect(accessSet);                    
+                        newIn[arrayName] = newIn[arrayName].Intersect(accessSet);
                     else
                         newIn[arrayName] = AccessingSet();
                 }
@@ -117,7 +167,7 @@ static void SolveDataFlowIteratively(Region* DFG)
         b->array_in = move(newIn);
         ArrayAccessingIndexes newOut;
 
-        if (b->array_def.empty())        
+        if (b->array_def.empty())
             newOut = b->array_in;
         else if (b->array_in.empty())
             newOut = b->array_def;
@@ -133,25 +183,196 @@ static void SolveDataFlowIteratively(Region* DFG)
         }
 
         /* can not differ */
-        if (newOut != b->array_out) 
+        if (newOut != b->array_out)
             b->array_out = newOut;
         else
             worklist.erase(b);
-    } 
-    while (!worklist.empty());
+    } while (!worklist.empty());
+}
+
+static void SolveForBasickBlock(Region* block)
+{
+    ArrayAccessingIndexes newIn;
+    bool flagFirst = true;
+    for (Region* prevBlock : block->getPrevRegions())
+    {
+        if (flagFirst)
+        {
+            newIn = prevBlock->array_out;
+            flagFirst = false;
+        }
+        else
+        {
+            if (prevBlock->array_out.empty())
+            {
+                newIn.clear();
+                break;
+            }
+
+            for (const auto& [arrayName, accessSet] : prevBlock->array_out)
+            {
+                if (newIn.find(arrayName) != newIn.end())
+                    newIn[arrayName] = newIn[arrayName].Intersect(accessSet);
+                else
+                    newIn[arrayName] = AccessingSet();
+            }
+        }
+    }
+
+    if (block->instructions.empty())
+        block->instructions.push_back(RegionInstruction());
+
+    block->instructions[0].in = move(newIn);
+
+    for (int i = 0; i < block->instructions.size(); i++)
+    {
+        auto& instruction = block->instructions[i];
+
+        if (i > 0)
+            instruction.in = block->instructions[i - 1].out;
+
+        ArrayAccessingIndexes newOut;
+        if (instruction.def.empty())
+            newOut = instruction.in;
+        else if (instruction.in.empty())
+            newOut = instruction.def;
+        else
+        {
+            for (auto& [arrayName, accessSet] : instruction.def)
+            {
+                if (instruction.in.find(arrayName) != instruction.in.end())
+                    newOut[arrayName] = instruction.def[arrayName].Union(instruction.in[arrayName]);
+                else
+                    newOut[arrayName] = accessSet;
+            }
+            for (auto& [arrayName, accessSet] : instruction.in)
+            {
+                if (newOut.find(arrayName) == newOut.end())
+                {
+                    newOut[arrayName] = accessSet;
+                }
+            }
+        }
+
+        instruction.out = move(newOut);
+    }
+    if (!block->instructions.empty())
+        block->array_out = block->instructions.back().out;
+}
+
+static void SolveDataFlowTopologically(Region* DFG)
+{
+    for (Region* b : DFG->getBasickBlocks())
+    {
+        collapsed.insert(b);
+        SolveForBasickBlock(b);
+    }
 }
 
 static void SolveDataFlow(Region* DFG)
 {
     if (!DFG)
         return;
-
-    SolveDataFlowIteratively(DFG);
     for (Region* subRegion : DFG->getSubRegions())
+    {
         SolveDataFlow(subRegion);
+        DFG->addBasickBlocks(subRegion);
+    }
+    vector<Region*>& blocks = DFG->getBasickBlocks();
+    auto pos = remove_if(blocks.begin(), blocks.end(), [](Region* r) { return collapsed.find(r) != collapsed.end(); });
+    blocks.erase(pos, blocks.end());
+    TopologySort(DFG->getBasickBlocks(), DFG->getHeader());
+    SolveDataFlowTopologically(DFG);
     Collapse(DFG);
 }
 
+static bool getArrayDeclaredDimensions(SgArrayRefExp* arrayRef, vector<uint64_t>& declaredDims)
+{
+    if (!arrayRef || !arrayRef->symbol() || !isSgArrayType(arrayRef->symbol()->type()))
+        return false;
+    SgArrayType* arrayType = (SgArrayType*)arrayRef->symbol()->type();
+    int dimCount = arrayType->dimension();
+    for (int i = 0; i < dimCount; i++)
+    {
+        SgExpression* sizeExpr = arrayType->sizeInDim(i);
+        SgConstantSymb* constValSymb = isSgConstantSymb(sizeExpr->symbol());
+        SgSubscriptExp* subscriptExpr = isSgSubscriptExp(sizeExpr);
+        uint64_t dimLength;
+        if (sizeExpr && sizeExpr->variant() == INT_VAL)
+            dimLength = stol(sizeExpr->unparse());
+        else if (constValSymb)
+            dimLength = stol(constValSymb->constantValue()->unparse());
+        else if (subscriptExpr)
+        {
+            dimLength = stol(subscriptExpr->rhs()->unparse()) - stol(subscriptExpr->lhs()->unparse());
+        }
+        else
+            return false;
+
+        if (dimLength == 0)
+            return false;
+        declaredDims.push_back(dimLength);
+    }
+    return true;
+}
+
+static DIST::Array* getDistArrayBySymbol(SgSymbol* arrSym)
+{
+    if (!arrSym)
+        return nullptr;
+    for (auto& [key, val] : declaredArrays)
+    {
+        DIST::Array* distArr = val.first;
+        if (!distArr)
+            continue;
+        Symbol* declSym = distArr->GetDeclSymbol();
+        if (!declSym)
+            continue;
+        SgSymbol* sgDecl = declSym->GetOriginal();
+        if (sgDecl && isEqSymbols(sgDecl, arrSym))
+            return distArr;
+    }
+    return nullptr;
+}
+
+static bool CheckDimensionLength(const AccessingSet& array)
+{
+    if (array.GetElements().empty())
+        return false;
+    size_t dimCount = array.GetElements()[0].size();
+    SgArrayRefExp* arrayRef = array.GetElements()[0][0].array;
+    if (!arrayRef || !arrayRef->symbol())
+        return false;
+
+    vector<uint64_t> declaredDims;
+    declaredDims.reserve(dimCount);
+
+    DIST::Array* distArr = getDistArrayBySymbol(arrayRef->symbol());
+    if (distArr && distArr->GetDimSize() == (int)dimCount)
+    {
+        const auto& sizes = distArr->GetSizes();
+        bool valid = true;
+        for (size_t i = 0; i < dimCount && valid; ++i)
+        {
+            int lo = sizes[i].first;
+            int hi = sizes[i].second;
+            if (lo > hi)
+                valid = false;
+            else
+                declaredDims.push_back((uint64_t)(hi - lo + 1));
+        }
+        if (valid && declaredDims.size() == dimCount)
+        {
+            vector<ArrayDimension> testArray(dimCount);
+            for (size_t i = 0; i < dimCount; i++)
+                testArray[i] = { 1, 1, declaredDims[i], nullptr };
+            return AccessingSet({ testArray }).Diff(array).GetElements().empty();
+        }
+    }
+
+    return false;
+}
+
 static void AddPrivateArraysToLoop(LoopGraph* loop, const ArrayAccessingIndexes& privates, set<SgStatement*>& insertedPrivates)
 {
     SgStatement* spfStat = new SgStatement(SPF_ANALYSIS_DIR);
@@ -159,8 +380,11 @@ static void AddPrivateArraysToLoop(LoopGraph* loop, const ArrayAccessingIndexes&
     spfStat->setFileName(loop->loop->fileName());
     SgExpression* toAdd = new SgExpression(EXPR_LIST, new SgExpression(ACC_PRIVATE_OP), NULL, NULL);
     set<SgSymbol*> arraysToInsert;
+    std::cout << "First bp\n";
     for (const auto& [_, accessingSet] : privates)
     {
+        if (!CheckDimensionLength(accessingSet))
+            continue;
         for (const auto& arrayElement : accessingSet.GetElements())
         {
             if (arrayElement.empty())
@@ -187,16 +411,16 @@ static void AddPrivateArraysToLoop(LoopGraph* loop, const ArrayAccessingIndexes&
         }
         toAdd->setLhs(new SgVarRefExp(elem));
     }
-    
-    if (arraysToInsert.size() == 0)
-        printInternalError(convertFileName(__FILE__).c_str(), __LINE__);
 
-    loop->loop->insertStmtBefore(*spfStat, *loop->loop->controlParent());
-    insertedPrivates.insert(spfStat);
+    if (arraysToInsert.size() != 0)
+    {
+        loop->loop->insertStmtBefore(*spfStat, *loop->loop->controlParent());
+        insertedPrivates.insert(spfStat);
+    }
 }
 
-void FindPrivateArrays(map<string, vector<LoopGraph*>> &loopGraph, map<FuncInfo*, vector<SAPFOR::BasicBlock*>>& FullIR, set<SgStatement*> &insertedPrivates)
-{  
+void findPrivateArrays(map<string, vector<LoopGraph*>>& loopGraph, map<FuncInfo*, vector<SAPFOR::BasicBlock*>>& FullIR, set<SgStatement*>& insertedPrivates)
+{
     map<LoopGraph*, ArrayAccessingIndexes> result;
     for (const auto& [fileName, loops] : loopGraph)
     {
@@ -210,11 +434,19 @@ void FindPrivateArrays(map<string, vector<LoopGraph*>> &loopGraph, map<FuncInfo*
             while (search_func && (!isSgProgHedrStmt(search_func)))
                 search_func = search_func->controlParent();
 
-            for (const auto& [funcInfo, blocks]: FullIR)
-            {   
+            for (const auto& [funcInfo, blocks] : FullIR)
+            {
                 if (funcInfo->fileName == fileName && funcInfo->funcPointer->GetOriginal() == search_func)
                 {
-                    Region* loopRegion = new Region(loop, blocks);
+                    Region* loopRegion;
+                    try
+                    {
+                        loopRegion = new Region(loop, blocks);
+                    }
+                    catch (...)
+                    {
+                        continue;
+                    }
                     if (loopRegion->getBasickBlocks().size() <= 1)
                     {
                         delete(loopRegion);
@@ -226,9 +458,24 @@ void FindPrivateArrays(map<string, vector<LoopGraph*>> &loopGraph, map<FuncInfo*
                     delete(loopRegion);
                 }
             }
-
             if (result.find(loop) != result.end() && !result[loop].empty())
                 AddPrivateArraysToLoop(loop, result[loop], insertedPrivates);
         }
     }
-}
+
+    for (SgStatement* st : statementsToRemove)
+    {
+        SgFile::switchToFile(st->fileName());
+        st->deleteStmt();
+    }
+
+    for (auto& [filename, statements] : expToChange)
+    {
+        SgFile::switchToFile(filename);
+        for (auto& [statement, statementCopy] : statements) 
+        {
+            statement->insertStmtBefore(*statementCopy, *statement->controlParent());
+            statement->deleteStmt();
+        }
+    }
+}

src/PrivateAnalyzer/private_arrays_search.h

@@ -9,5 +9,4 @@
 #include "graph_loops.h"
 #include "CFGraph/CFGraph.h"
 
-void FindPrivateArrays(std::map<std::string, std::vector<LoopGraph*>>& loopGraph, std::map<FuncInfo*, std::vector<SAPFOR::BasicBlock*>>& FullIR, std::set<SgStatement*>& insertedPrivates);
-std::pair<SAPFOR::BasicBlock*, std::unordered_set<SAPFOR::BasicBlock*>> GetBasicBlocksForLoop(const LoopGraph* loop, const std::vector<SAPFOR::BasicBlock*> blocks);
+void findPrivateArrays(std::map<std::string, std::vector<LoopGraph*>>& loopGraph, std::map<FuncInfo*, std::vector<SAPFOR::BasicBlock*>>& FullIR, std::set<SgStatement*>& insertedPrivates);

src/PrivateAnalyzer/range_structures.cpp

@@ -29,7 +29,7 @@ static ArrayDimension* DimensionIntersection(const ArrayDimension& dim1, const A
     vector<uint64_t> partSolution = FindParticularSolution(dim1, dim2);
     if (partSolution.empty())
         return NULL;
-    
+
     int64_t x0 = partSolution[0], y0 = partSolution[1];
     /* x = x_0 + c * t */
     /* y = y_0 + d * t */
@@ -44,10 +44,10 @@ static ArrayDimension* DimensionIntersection(const ArrayDimension& dim1, const A
     uint64_t tMax = min(tXMax, tYMax);
     if (tMin > tMax)
         return NULL;
-    
+
     uint64_t start3 = dim1.start + x0 * dim1.step;
     uint64_t step3 = c * dim1.step;
-    ArrayDimension* result = new(ArrayDimension){ start3, step3, tMax + 1 , dim1.array};
+    ArrayDimension* result = new(ArrayDimension){ start3, step3, tMax + 1 , dim1.array };
     return result;
 }
 
@@ -57,12 +57,12 @@ static vector<ArrayDimension> DimensionDifference(const ArrayDimension& dim1, co
     ArrayDimension* intersection = DimensionIntersection(dim1, dim2);
     if (!intersection)
         return { dim1 };
-    
+
     vector<ArrayDimension> result;
     /* add the part before intersection */
-    if (dim1.start < intersection->start)    
-        result.push_back({ dim1.start, dim1.step, (intersection->start - dim1.start) / dim1.step, dim1.array});
-    
+    if (dim1.start < intersection->start)
+        result.push_back({ dim1.start, dim1.step, (intersection->start - dim1.start) / dim1.step, dim1.array });
+
     /* add the parts between intersection steps */
     if (intersection->step > dim1.step)
     {
@@ -70,7 +70,7 @@ static vector<ArrayDimension> DimensionDifference(const ArrayDimension& dim1, co
         uint64_t interValue = intersection->start;
         for (int64_t i = start; interValue <= intersection->start + intersection->step * (intersection->tripCount - 1); i++)
         {
-            result.push_back({interValue + dim1.step, dim1.step, intersection->step / dim1.step, dim1.array});
+            result.push_back({ interValue + dim1.step, dim1.step, intersection->step / dim1.step, dim1.array });
             interValue += intersection->step;
         }
     }
@@ -109,7 +109,7 @@ static vector<ArrayDimension> ElementsIntersection(const vector<ArrayDimension>&
 {
     if (firstElement.empty() || secondElement.empty())
         return {};
-    
+
     size_t dimAmount = firstElement.size();
     /* check if there is no intersecction */
     for (size_t i = 0; i < dimAmount; i++)
@@ -132,14 +132,16 @@ static vector<ArrayDimension> ElementsIntersection(const vector<ArrayDimension>&
 static vector<vector<ArrayDimension>> ElementsDifference(const vector<ArrayDimension>& firstElement,
     const vector<ArrayDimension>& secondElement)
 {
-    if (firstElement.empty() || secondElement.empty())
+    if (firstElement.empty())
         return {};
-    
+    if (secondElement.empty())
+        return { firstElement };
+
     vector<ArrayDimension> intersection = ElementsIntersection(firstElement, secondElement);
     vector<vector<ArrayDimension>> result;
     if (intersection.empty())
         return { firstElement };
-    
+
     for (int i = 0; i < firstElement.size(); i++)
     {
         auto dimDiff = DimensionDifference(firstElement[i], secondElement[i]);
@@ -188,7 +190,7 @@ bool AccessingSet::ContainsElement(const vector<ArrayDimension>& element) const
 {
     vector<vector<ArrayDimension>> tails;
     FindUncovered(element, tails);
-    return !tails.empty();
+    return tails.empty();
 }
 
 void AccessingSet::FindCoveredBy(const vector<ArrayDimension>& element, vector<vector<ArrayDimension>>& result) const
@@ -252,13 +254,15 @@ AccessingSet AccessingSet::Diff(const AccessingSet& secondSet) const
         return *this;
 
     AccessingSet intersection = this->Intersect(secondSet);
-    AccessingSet uncovered = *this;
-    vector<vector<ArrayDimension>> result;
-    for (const auto& element : intersection.GetElements())
+    vector<vector<ArrayDimension>> uncovered;
+    for (const auto& element : allElements)
     {
         vector<vector<ArrayDimension>> current_uncovered;
-        uncovered.FindUncovered(element, current_uncovered);
-        uncovered = AccessingSet(current_uncovered);
+        intersection.FindUncovered(element, current_uncovered);
+        uncovered.insert(uncovered.end(),
+            std::move_iterator(current_uncovered.begin()),
+            std::move_iterator(current_uncovered.end())
+        );
     }
     return uncovered;
 }
@@ -289,4 +293,4 @@ bool operator!=(const ArrayAccessingIndexes& lhs, const ArrayAccessingIndexes& r
             return true;
 
     return false;
-}
+}

src/PrivateAnalyzer/region.cpp

@@ -1,14 +1,14 @@
-#include<vector>
-#include<map>
-#include<unordered_set>
-#include<unordered_map>
-#include<string>
+#include <algorithm>
+#include <vector>
+#include <map>
+#include <unordered_set>
+#include <unordered_map>
+#include <string>
 #include <numeric>
 #include <iostream>
 
 #include "range_structures.h"
 #include "region.h"
-
 #include "SgUtils.h"
 
 using namespace std;
@@ -23,7 +23,7 @@ static bool isParentStmt(SgStatement* stmt, SgStatement* parent)
 }
 
 /*returns head block and loop*/
-pair<SAPFOR::BasicBlock*, unordered_set<SAPFOR::BasicBlock*>> GetBasicBlocksForLoop(const LoopGraph* loop, const vector<SAPFOR::BasicBlock*> blocks)
+static pair<SAPFOR::BasicBlock*, unordered_set<SAPFOR::BasicBlock*>> GetBasicBlocksForLoop(const LoopGraph* loop, const vector<SAPFOR::BasicBlock*> blocks)
 {
     unordered_set<SAPFOR::BasicBlock*> block_loop;
     SAPFOR::BasicBlock* head_block = nullptr;
@@ -62,14 +62,14 @@ static void BuildLoopIndex(map<string, LoopGraph*>& loopForIndex, LoopGraph* loo
 static string FindIndexName(int pos, SAPFOR::BasicBlock* block, map<string, LoopGraph*>& loopForIndex) {
     unordered_set<SAPFOR::Argument*> args = { block->getInstructions()[pos]->getInstruction()->getArg1() };
 
-    for (int i = pos - 1; i >= 0; i--) 
+    for (int i = pos - 1; i >= 0; i--)
     {
         SAPFOR::Argument* res = block->getInstructions()[i]->getInstruction()->getResult();
-        if (res && args.find(res) != args.end()) 
+        if (res && args.find(res) != args.end())
         {
             SAPFOR::Argument* arg1 = block->getInstructions()[i]->getInstruction()->getArg1();
             SAPFOR::Argument* arg2 = block->getInstructions()[i]->getInstruction()->getArg2();
-            if (arg1) 
+            if (arg1)
             {
                 string name = arg1->getValue();
                 int idx = name.find('%');
@@ -93,7 +93,7 @@ static string FindIndexName(int pos, SAPFOR::BasicBlock* block, map<string, Loop
     return "";
 }
 
-static int GetDefUseArray(SAPFOR::BasicBlock* block, LoopGraph* loop, ArrayAccessingIndexes& def, ArrayAccessingIndexes& use) {
+static int GetDefUseArray(SAPFOR::BasicBlock* block, LoopGraph* loop, ArrayAccessingIndexes& def, ArrayAccessingIndexes& use, Region* region) {
     auto instructions = block->getInstructions();
     map<string, LoopGraph*> loopForIndex;
     BuildLoopIndex(loopForIndex, loop);
@@ -123,7 +123,11 @@ static int GetDefUseArray(SAPFOR::BasicBlock* block, LoopGraph* loop, ArrayAcces
                     }
 
                     if (point.size() == dimCount)
-                        def[instruction->getInstruction()->getResult()->getValue()] = AccessingSet({point});
+                    {
+                        def[instruction->getInstruction()->getResult()->getValue()] = AccessingSet({ point });
+                        RegionInstruction regionInstruction;
+                        regionInstruction.def[instruction->getInstruction()->getResult()->getValue()] = AccessingSet({ point });
+                    }
                 }
             }
         }
@@ -131,7 +135,7 @@ static int GetDefUseArray(SAPFOR::BasicBlock* block, LoopGraph* loop, ArrayAcces
         {
             vector<SAPFOR::Argument*> index_vars;
             vector<int> refPos;
-            string array_name = instruction->getInstruction()->getArg1()->getValue();            
+            string array_name = instruction->getInstruction()->getArg1()->getValue();
 
             int j = i - 1;
             while (j >= 0 && instructions[j]->getInstruction()->getOperation() == SAPFOR::CFG_OP::REF)
@@ -146,61 +150,92 @@ static int GetDefUseArray(SAPFOR::BasicBlock* block, LoopGraph* loop, ArrayAcces
             vector<ArrayDimension> accessPoint(n);
 
             auto* ref = isSgArrayRefExp(instruction->getInstruction()->getExpression());
+            if (!ref)
+                continue;
             int fillCount = 0;
 
-            while (!index_vars.empty() && !refPos.empty())
+            vector<pair<int, int>> coeffsForDims;
+            int subs = ref->numberOfSubscripts();
+            for (int i = 0; ref && i < ref->numberOfSubscripts(); ++i)
+            {
+                const vector<int*>& coeffs = getAttributes<SgExpression*, int*>(ref->subscript(i), set<int>{ INT_VAL });
+                if (coeffs.size() == 1)
+                {
+                    const pair<int, int> coef(coeffs[0][0], coeffs[0][1]);
+                    coeffsForDims.push_back(coef);
+                }
+
+            }
+            coeffsForDims = { coeffsForDims.rbegin(), coeffsForDims.rend() };
+
+            while (!index_vars.empty() && !refPos.empty() && !coeffsForDims.empty())
             {
                 auto var = index_vars.back();
                 int currentVarPos = refPos.back();
                 ArrayDimension current_dim;
                 if (var->getType() == SAPFOR::CFG_ARG_TYPE::CONST)
-                    current_dim = { stoul(var->getValue()), 1, 1, ref};
+                    current_dim = { stoul(var->getValue()), 1, 1, ref };
                 else
                 {
                     string name, full_name = var->getValue();
                     int pos = full_name.find('%');
                     LoopGraph* currentLoop;
-                    if (pos != -1) 
+                    if (pos != -1)
                     {
                         name = full_name.substr(pos + 1);
                         if (loopForIndex.find(name) != loopForIndex.end())
-                            currentLoop = loopForIndex[name];                        
+                            currentLoop = loopForIndex[name];
                         else
                             return -1;
                     }
-                    else 
+                    else
                     {
                         name = FindIndexName(currentVarPos, block, loopForIndex);
                         if (name == "")
                             return -1;
 
                         if (loopForIndex.find(name) != loopForIndex.end())
-                            currentLoop = loopForIndex[name];                        
+                            currentLoop = loopForIndex[name];
                         else
                             return -1;
                     }
 
-                    uint64_t start = currentLoop->startVal;
+                    uint64_t start = coeffsForDims.back().second * currentLoop->startVal + coeffsForDims.back().first;
                     uint64_t step = currentLoop->stepVal;
                     uint64_t iters = currentLoop->calculatedCountOfIters;
                     current_dim = { start, step, iters, ref };
                 }
 
-                if (current_dim.start != 0 && current_dim.step != 0 && current_dim.tripCount != 0)
+                if (current_dim.step != 0 && current_dim.tripCount != 0)
                 {
                     accessPoint[n - index_vars.size()] = current_dim;
                     fillCount++;
                 }
                 index_vars.pop_back();
                 refPos.pop_back();
+                coeffsForDims.pop_back();
             }
 
             if (fillCount == accessPoint.size())
             {
+                RegionInstruction instruction;
                 if (operation == SAPFOR::CFG_OP::STORE)
+                {
                     def[array_name].Insert(accessPoint);
+                    instruction.def[array_name] = { { accessPoint } };
+                }
                 else
-                    use[array_name].Insert(accessPoint);
+                {
+                    instruction.use[array_name] = { { accessPoint } };
+                    if (def.find(array_name) == def.end())
+                        use[array_name].Insert(accessPoint);
+                    else
+                    {
+                        AccessingSet element({ accessPoint });
+                        use[array_name] = use[array_name].Union(element.Diff(def[array_name]));
+                    }
+                }
+                region->instructions.push_back(instruction);
             }
         }
     }
@@ -208,6 +243,58 @@ static int GetDefUseArray(SAPFOR::BasicBlock* block, LoopGraph* loop, ArrayAcces
 
 }
 
+static void RemoveHeaderConnection(SAPFOR::BasicBlock* header, const unordered_set<SAPFOR::BasicBlock*>& blockSet, unordered_map<SAPFOR::BasicBlock*, Region*>& bbToRegion)
+{
+    for (SAPFOR::BasicBlock* block : blockSet)
+    {
+        bool isCycleBlock = false;
+        for (SAPFOR::BasicBlock* prevBlock : block->getPrev())
+            isCycleBlock = isCycleBlock || (blockSet.find(prevBlock) != blockSet.end());
+
+        if (isCycleBlock)
+        {
+            bbToRegion[block]->removeNextRegion(bbToRegion[header]);
+            bbToRegion[header]->removePrevRegion(bbToRegion[block]);
+        }
+    }
+}
+
+static void DFS(Region* block, vector<Region*>& result, unordered_set<Region*> cycleBlocks)
+{
+    for (Region* nextBlock : block->getNextRegions())
+    {
+        if (cycleBlocks.find(nextBlock) != cycleBlocks.end())
+            DFS(nextBlock, result, cycleBlocks);
+    }
+    result.push_back(block);
+}
+
+bool HasCycle(Region* block, const std::unordered_set<Region*>& cycleBlocks, std::unordered_set<Region*>& visitedBlocks)
+{
+    if (visitedBlocks.find(block) != visitedBlocks.end())
+        return true;
+    visitedBlocks.insert(block);
+    for (Region* nextBlock : block->getNextRegions())
+    {
+        if (cycleBlocks.find(nextBlock) != cycleBlocks.end() && HasCycle(nextBlock, cycleBlocks, visitedBlocks))
+            return true;
+    }
+    return false;
+}
+
+bool TopologySort(std::vector<Region*>& basikBlocks, Region* header)
+{
+    unordered_set<Region*> cycleBlocks(basikBlocks.begin(), basikBlocks.end());
+    unordered_set<Region*> visitedBlocks;
+    if (HasCycle(header, cycleBlocks, visitedBlocks))
+        return false;
+    vector<Region*> result;
+    DFS(header, result, cycleBlocks);
+    reverse(result.begin(), result.end());
+    basikBlocks = move(result);
+    return true;
+}
+
 static void SetConnections(unordered_map<SAPFOR::BasicBlock*, Region*>& bbToRegion, const unordered_set<SAPFOR::BasicBlock*>& blockSet)
 {
     for (SAPFOR::BasicBlock* block : blockSet)
@@ -215,25 +302,26 @@ static void SetConnections(unordered_map<SAPFOR::BasicBlock*, Region*>& bbToRegi
         for (SAPFOR::BasicBlock* nextBlock : block->getNext())
             if (bbToRegion.find(nextBlock) != bbToRegion.end())
                 bbToRegion[block]->addNextRegion(bbToRegion[nextBlock]);
-         
+
         for (SAPFOR::BasicBlock* prevBlock : block->getPrev())
             if (bbToRegion.find(prevBlock) != bbToRegion.end())
                 bbToRegion[block]->addPrevRegion(bbToRegion[prevBlock]);
     }
 }
 
-static Region* CreateSubRegion(LoopGraph* loop, const vector<SAPFOR::BasicBlock*>& Blocks, const unordered_map<SAPFOR::BasicBlock*, Region*>& bbToRegion)
+static Region* CreateSubRegion(LoopGraph* loop, const vector<SAPFOR::BasicBlock*>& Blocks, unordered_map<SAPFOR::BasicBlock*, Region*>& bbToRegion)
 {
     Region* region = new Region;
     auto [header, blockSet] = GetBasicBlocksForLoop(loop, Blocks);
+    RemoveHeaderConnection(header, blockSet, bbToRegion);
     if (bbToRegion.find(header) != bbToRegion.end())
-        region->setHeader(bbToRegion.at(header));    
+        region->setHeader(bbToRegion.at(header));
     else
     {
         printInternalError(convertFileName(__FILE__).c_str(), __LINE__);
         return NULL;
     }
-    
+
     for (SAPFOR::BasicBlock* block : blockSet)
         if (bbToRegion.find(block) != bbToRegion.end())
             region->addBasickBlocks(bbToRegion.at(block));
@@ -244,6 +332,8 @@ static Region* CreateSubRegion(LoopGraph* loop, const vector<SAPFOR::BasicBlock*
             continue;
         region->addSubRegions(CreateSubRegion(childLoop, Blocks, bbToRegion));
     }
+    if (!TopologySort(region->getBasickBlocks(), region->getHeader()))
+        throw std::runtime_error("Unnoticed cycle");
     return region;
 }
 
@@ -254,17 +344,20 @@ Region::Region(LoopGraph* loop, const vector<SAPFOR::BasicBlock*>& Blocks)
     for (auto poiner : blockSet)
     {
         bbToRegion[poiner] = new Region(*poiner);
-        this->basickBlocks.insert(bbToRegion[poiner]);
-        GetDefUseArray(poiner, loop, bbToRegion[poiner]->array_def, bbToRegion[poiner]->array_use);
+        this->basickBlocks.push_back(bbToRegion[poiner]);
+        GetDefUseArray(poiner, loop, bbToRegion[poiner]->array_def, bbToRegion[poiner]->array_use, bbToRegion[poiner]);
 
     }
     this->header = bbToRegion[header];
     SetConnections(bbToRegion, blockSet);
+    RemoveHeaderConnection(header, blockSet, bbToRegion);
     //create subRegions
     for (LoopGraph* childLoop : loop->children)
     {
         if (!childLoop->isFor())
             continue;
         subRegions.insert(CreateSubRegion(childLoop, Blocks, bbToRegion));
-    }
-}
+        }
+    if (!TopologySort(basickBlocks, this->header))
+        throw std::runtime_error("Unnoticed cycle");
+}

src/PrivateAnalyzer/region.h

@@ -8,6 +8,11 @@
 #include "graph_loops.h"
 #include "CFGraph/CFGraph.h"
 
+struct RegionInstruction
+{
+    ArrayAccessingIndexes def, use, in, out;
+};
+
 class Region : public SAPFOR::BasicBlock {
 public:
     Region() { header = nullptr; }
@@ -20,13 +25,25 @@ public:
 
     void setHeader(Region* region) { header = region; }
 
-    std::unordered_set<Region*>& getBasickBlocks() { return basickBlocks; }
+    std::vector<Region*>& getBasickBlocks() { return basickBlocks; }
 
-    void addBasickBlocks(Region* region) { basickBlocks.insert(region); }
+    void addBasickBlocks(Region* region) { basickBlocks.push_back(region); }
 
     const std::unordered_set<Region*>& getPrevRegions() { return prevRegions; }
 
-    std::unordered_set<Region*> getNextRegions() { return nextRegions; }
+    std::unordered_set<Region*>& getNextRegions() { return nextRegions; }
+
+    void removeNextRegion(Region* region)
+    {
+        if (nextRegions.find(region) != nextRegions.end())
+            nextRegions.erase(region);
+    }
+
+    void removePrevRegion(Region* region)
+    {
+        if (prevRegions.find(region) != prevRegions.end())
+            prevRegions.erase(region);
+    }
 
     void addPrevRegion(Region* region) { prevRegions.insert(region); }
 
@@ -48,13 +65,20 @@ public:
 
     void addSubRegions(Region* region) { subRegions.insert(region); }
 
+    std::vector<RegionInstruction> instructions;
+
     ArrayAccessingIndexes array_def, array_use, array_out, array_in, array_priv;
 
 private:
-    std::unordered_set<Region*> subRegions, basickBlocks;
+    std::vector<Region*> basickBlocks;
+    std::unordered_set<Region*> subRegions;
     /*next Region which is BB for current BB Region*/
     std::unordered_set<Region*> nextRegions;
     /*prev Regions which is BBs for current BB Region*/
     std::unordered_set<Region*> prevRegions;
     Region* header;
 };
+
+bool HasCycle(Region* block, const std::unordered_set<Region*>& cycleBlocks, std::unordered_set<Region*>& visitedBlocks);
+
+bool TopologySort(std::vector<Region*>& basikBlocks, Region* header);

src/Sapfor.cpp

@@ -23,6 +23,7 @@
 #include "ParallelizationRegions/ParRegions_func.h"
 #include "ParallelizationRegions/resolve_par_reg_conflicts.h"
 #include "ParallelizationRegions/expand_extract_reg.h"
+#include "ParallelizationRegions/merge_regions.h"
 
 #include "Distribution/Distribution.h"
 #include "Distribution/GraphCSR.h"
@@ -90,6 +91,7 @@
 #include "Transformations/DeadCodeRemoving/dead_code.h"
 #include "Transformations/RenameSymbols/rename_symbols.h"
 #include "Transformations/FunctionInlining/inliner.h"
+#include "Transformations/MoveOperators/move_operators.h"
 
 #include "ProjectParameters/projectParameters.h"
 
@@ -740,7 +742,7 @@ static bool runAnalysis(SgProject &project, const int curr_regime, const bool ne
         else if (curr_regime == LOOP_DATA_DEPENDENCIES)
             doDependenceAnalysisOnTheFullFile(file, 1, 1, 1);
         else if (curr_regime == REMOVE_DVM_DIRS || curr_regime == REMOVE_DVM_DIRS_TO_COMMENTS || curr_regime == REMOVE_SPF_DIRS) {
-            bool removeDvm = (curr_regime == REMOVE_DVM_DIRS || curr_regime == REMOVE_DVM_DIRS);
+            bool removeDvm = (curr_regime == REMOVE_DVM_DIRS);
             bool removeSpf = (curr_regime == REMOVE_SPF_DIRS);
             bool toComment = (curr_regime == REMOVE_DVM_DIRS_TO_COMMENTS);
             removeDvmSpfDirectives(file, removeDvm, removeSpf, toComment);
@@ -941,6 +943,8 @@ static bool runAnalysis(SgProject &project, const int curr_regime, const bool ne
                     internalExit = err;
             }
         }
+        else if (curr_regime == MOVE_OPERATORS)        
+            moveOperators(file, fullIR, countOfTransform);
         else if (curr_regime == PRIVATE_REMOVING_ANALYSIS)
         {
             auto itFound = loopGraph.find(file->filename());
@@ -1037,7 +1041,8 @@ static bool runAnalysis(SgProject &project, const int curr_regime, const bool ne
                           PRIVATE_REMOVING,
                           PRIVATE_ARRAYS_EXPANSION, 
                           PRIVATE_ARRAYS_SHRINKING,
-                          REMOVE_DEAD_CODE };
+                          REMOVE_DEAD_CODE,
+                          MOVE_OPERATORS };
 
     if ((countOfTransform == 0 || internalExit > 0) && applyFor.find(curr_regime) != applyFor.end())
     {
@@ -1260,6 +1265,8 @@ static bool runAnalysis(SgProject &project, const int curr_regime, const bool ne
 
         moveAllocatesInterproc(arrayLinksByFuncCalls);
 
+        propagateRegionInfo(declaredArrays, arrayLinksByFuncCalls, subs_parallelRegions);
+
         removeDistrStateFromDeadFunctions(allFuncInfo, declaredArrays);
         propagateArrayFlags(arrayLinksByFuncCalls, declaredArrays, SPF_messages);
     }
@@ -1677,30 +1684,11 @@ static bool runAnalysis(SgProject &project, const int curr_regime, const bool ne
         findDeadFunctionsAndFillCalls(allFuncInfo_IR, SPF_messages, true);
     else if (curr_regime == GET_ALL_ARRAY_DECL)
     {
-        bool hasNonDefaultReg = false;
-        for (auto &elem : subs_parallelRegions)
-            if (elem->GetName() != "DEFAULT")
-                hasNonDefaultReg = true;
-
-        if (hasNonDefaultReg)
+        if (ignoreArrayDistributeState) 
         {
-            for (auto array : declaredArrays)
-            {
-                if (array.second.first->GetRegionsName().size() == 0)
-                    array.second.first->SetDistributeFlag(DIST::NO_DISTR);
-                else if (array.second.first->GetRegionsName().size() == 1)
-                {
-                    string regName = *array.second.first->GetRegionsName().begin();
-                    convertToLower(regName);
-                    if (regName == "default")
-                        array.second.first->SetDistributeFlag(DIST::NO_DISTR);
-                }
-            }
-        }
-
-        if (ignoreArrayDistributeState)
             for (auto array : declaredArrays)
                 array.second.first->SetDistributeFlag(DIST::NO_DISTR);
+        }
     }
     else if (curr_regime == GCOV_PARSER)
     {
@@ -1889,7 +1877,7 @@ static bool runAnalysis(SgProject &project, const int curr_regime, const bool ne
         findParameters(parametersOfProject, fullIR, declaredArrays);
     else if (curr_regime == BUILD_IR)
     {
-        auto CFG_forFile = buildCFG(commonBlocks, allFuncInfo_IR, SAPFOR::CFG_Settings(0));
+        auto CFG_forFile = buildCFG(commonBlocks, allFuncInfo_IR, SAPFOR::CFG_Settings());
         for (auto& byFunc : CFG_forFile)
             fullIR[byFunc.first].insert(fullIR[byFunc.first].end(), byFunc.second.begin(), byFunc.second.end());
 
@@ -1917,10 +1905,11 @@ static bool runAnalysis(SgProject &project, const int curr_regime, const bool ne
     else if (curr_regime == TRANSFORM_ASSUMED_SIZE_PARAMETERS)
         transformAssumedSizeParameters(allFuncInfo);
     else if (curr_regime == FIND_PRIVATE_ARRAYS_ANALYSIS)
-        FindPrivateArrays(loopGraph, fullIR, insertedPrivates);
-
+        findPrivateArrays(loopGraph, fullIR, insertedPrivates);
+    else if (curr_regime == MERGE_REGIONS)
+        mergeRegions(parallelRegions, allFuncInfo);
     else if (curr_regime == ARRAY_PROPAGATION)
-        ArrayConstantPropagation(project);
+        arrayConstantPropagation(project);
 
     const float elapsed = duration_cast<milliseconds>(high_resolution_clock::now() - timeForPass).count() / 1000.;
     const float elapsedGlobal = duration_cast<milliseconds>(high_resolution_clock::now() - globalTime).count() / 1000.;
@@ -2339,6 +2328,7 @@ void runPass(const int curr_regime, const char *proj_name, const char *folderNam
     case INSERT_NO_DISTR_FLAGS_FROM_GUI:
     case PRIVATE_REMOVING:
     case RENAME_INLCUDES:
+    case MOVE_OPERATORS:
         runAnalysis(*project, curr_regime, true, "", folderName);
         break;
     case INLINE_PROCEDURES:
@@ -2374,6 +2364,7 @@ void runPass(const int curr_regime, const char *proj_name, const char *folderNam
     case FIX_COMMON_BLOCKS:
     case TEST_PASS:
     case SET_IMPLICIT_NONE:
+    case MERGE_REGIONS:
         runAnalysis(*project, curr_regime, false);
     case SUBST_EXPR_RD_AND_UNPARSE:
     case SUBST_EXPR_AND_UNPARSE:
@@ -2519,8 +2510,8 @@ int main(int argc, char **argv)
                     out_free_form = 1;
                     out_line_unlimit = 1;
                 }
-                else if (string(curr_arg) == "-sh")
-                    staticShadowAnalysis = 1;
+                /*else if (string(curr_arg) == "-sh")
+                    staticShadowAnalysis = 1;*/
                 else if (string(curr_arg) == "-shWidth")
                 {
                     i++;

src/Sapfor.h

@@ -88,6 +88,8 @@ enum passes {
     REMOVE_DVM_INTERVALS,
     VERIFY_DVM_DIRS,
 
+    MERGE_REGIONS,
+
     REMOVE_DIST_ARRAYS_FROM_IO,
 
     SUBST_EXPR,
@@ -122,6 +124,8 @@ enum passes {
     CREATE_INTER_TREE,
     INSERT_INTER_TREE,
 
+    MOVE_OPERATORS,
+
     SHADOW_GROUPING,
     INLINE_PROCEDURES,
     FILL_PARALLEL_REG_IR,
@@ -271,6 +275,7 @@ static void setPassValues()
     passNames[VERIFY_DVM_DIRS] = "VERIFY_DVM_DIRS";
     passNames[REMOVE_DVM_DIRS_TO_COMMENTS] = "REMOVE_DVM_DIRS_TO_COMMENTS";
     passNames[REMOVE_SPF_DIRS] = "REMOVE_SPF_DIRS";
+    passNames[MERGE_REGIONS] = "MERGE_REGIONS";
     passNames[REMOVE_DIST_ARRAYS_FROM_IO] = "REMOVE_DIST_ARRAYS_FROM_IO";
     passNames[SUBST_EXPR] = "SUBST_EXPR";
     passNames[SUBST_EXPR_RD] = "SUBST_EXPR_RD";
@@ -321,6 +326,7 @@ static void setPassValues()
     passNames[CHECK_PAR_REG_DIR] = "CHECK_PAR_REG_DIR";
     passNames[CREATE_INTER_TREE] = "CREATE_INTER_TREE";
     passNames[INSERT_INTER_TREE] = "INSERT_INTER_TREE";
+    passNames[MOVE_OPERATORS] = "MOVE_OPERATORS";
     passNames[CREATE_PARALLEL_REGIONS] = "CREATE_PARALLEL_REGIONS";
     passNames[PRIVATE_REMOVING_ANALYSIS] = "PRIVATE_REMOVING_ANALYSIS";
     passNames[PRIVATE_REMOVING] = "PRIVATE_REMOVING";

src/SapforData.h

@@ -19,7 +19,7 @@
 extern std::map<std::string, std::string> shortFileNames;
 static int activeState = 0;
 
-int staticShadowAnalysis = 0;
+int staticShadowAnalysis = 1;
 int staticPrivateAnalysis = 0;
 int keepDvmDirectives = 0;
 int keepFiles = 0;

src/Transformations/DeadCodeRemoving/dead_code.cpp

@@ -12,6 +12,7 @@ using std::map;
 using std::string;
 using std::vector;
 using std::set;
+using  SAPFOR::CFG_Settings;
 
 using std::remove_if;
 
@@ -424,7 +425,8 @@ int removeDeadCode(SgStatement* func,
         if (intervalDelEnd->lineNumber() < prog->lineNumber() || intervalDelEnd->lineNumber() > prog->lastNodeOfStmt()->lineNumber())
             printInternalError(convertFileName(__FILE__).c_str(), __LINE__);
 
-    auto cfg = buildCFGforCurrentFunc(func, SAPFOR::CFG_Settings(true, false, false, false, false, false, false), commonBlocks, allFuncs);
+    const auto settings = CFG_Settings({ CFG_Settings::CFG_atLeastOneIterInLoop });
+    auto cfg = buildCFGforCurrentFunc(func, settings, commonBlocks, allFuncs);
 
     if(cfg.size() != 1)
         printInternalError(convertFileName(__FILE__).c_str(), __LINE__);

src/Transformations/FunctionInlining/inliner.cpp

@@ -1089,6 +1089,8 @@ static int clean(const string& funcName, SgStatement* funcSt, const map<string,
             }
 
             SgGotoStmt* gotoSt = new SgGotoStmt(*contLab);
+            if (st->label())
+                gotoSt->setLabel(*st->label());
             st->insertStmtBefore(*gotoSt, *st->controlParent());
 
             toDelete.push_back(st);

src/Transformations/FunctionPurifying/function_purifying.cpp

@@ -234,9 +234,8 @@ static bool hasDvmParallel(SgStatement *func)
     return false;
 }
 
-void transformAssumedSizeParameters(const map<string, vector<FuncInfo*>>& allFuncInfo)
-{
-    map<string, vector<int>> assumedSizeArraysByFunc;
+static map<FuncInfo*, bool> createDvmParallelInfo(const map<string, vector<FuncInfo*>>& allFuncInfo) {
+    map<FuncInfo*, bool> hasDvmParallelMap;
 
     for (auto& funcByFile : allFuncInfo)
     {
@@ -249,7 +248,63 @@ void transformAssumedSizeParameters(const map<string, vector<FuncInfo*>>& allFun
             if (prog == NULL)
                 continue;
 
-            if (!hasDvmParallel(prog))
+            hasDvmParallelMap[func] = hasDvmParallel(prog);
+        }
+    }
+
+    bool changed = true;
+    while (changed) 
+    {
+        changed = false;
+
+        for (auto& funcByFile : allFuncInfo)
+        {
+            for (auto& func : funcByFile.second)
+            {
+                if (!hasDvmParallelMap[func]) 
+                {
+                    bool hasParallel = false;
+                    for (auto& callF : func->callsFromV)
+                    {
+                        if (hasDvmParallelMap[callF]) 
+                        {
+                            hasParallel = true;
+                            break;
+                        }
+                    }
+
+                    if (hasParallel)
+                    {
+                        changed = true;
+                        hasDvmParallelMap[func] = true;
+                    }
+
+                }
+            }
+        }
+    }
+
+    return hasDvmParallelMap;
+}
+
+
+void transformAssumedSizeParameters(const map<string, vector<FuncInfo*>>& allFuncInfo)
+{
+    map<string, vector<int>> assumedSizeArraysByFunc;
+    const map<FuncInfo*, bool> hasDvmParallelMap = createDvmParallelInfo(allFuncInfo);
+    
+    for (auto& funcByFile : allFuncInfo)
+    {
+        if (SgFile::switchToFile(funcByFile.first) == -1)
+            printInternalError(convertFileName(__FILE__).c_str(), __LINE__);
+
+        for (auto& func : funcByFile.second)
+        {
+            SgProgHedrStmt* prog = isSgProgHedrStmt(func->funcPointer->GetOriginal());
+            if (prog == NULL)
+                continue;
+
+            if (!hasDvmParallelMap.at(func))
                 continue;
 
             vector<SgSymbol*> parNames;
@@ -259,7 +314,8 @@ void transformAssumedSizeParameters(const map<string, vector<FuncInfo*>>& allFun
             bool hasRefs = false;
             for (int z = 0; z < func->funcParams.countOfPars; ++z)
             {
-                if (func->funcParams.parametersT[z] == ARRAY_T)
+                if (func->funcParams.parametersT[z] == ARRAY_T ||
+                    func->funcParams.parametersT[z] == STRING_ARRAY_T)
                 {
                     auto s = prog->parameter(z);
                     const string name = s->identifier();

src/Transformations/GlobalVariables/fix_common_blocks.cpp

@@ -18,69 +18,66 @@ using std::tuple;
 
 /// main function:
 // renew unions for all common blocks in the file
-static void BuildNewCommDecls(SgFile* file, const map<string, CommonBlock*> allCommonBlocks,
-    map<string, deque<CommConstraint>>& newCommonDecls, map<string, map<string, deque<CommConstraint>>>& commDecls,
-    set<string>& badCommon, map<string, set<string>>& notUsedVars, vector<SgStatement*>& programUnits);
+//void BuildNewCommDecls
 
 // get names of variables and array elements, which were referenced in programm unit
-static set<string> getUses(SgStatement* firstSt, const set<string>& commonVarNames);
-static void getUsesFromExpr(SgExpression* expr, const set<string>& commonVarNames, set<string>& used);
+//set<string> getUses
+//void getUsesFromExpr
 
 // splits arrays into elements and replaces not used vars with empty constraints
-static bool splitType(deque<CommConstraint>& d, bool check_use, const set<string>& namesOfUsedVars);
+//bool splitType
+ 
 // create constraits set
-static deque<CommConstraint> makeConstraints(deque<CommConstraint>& constraints, const set<string>& namesOfUsedVars, set<string>& notUsedVars);
+//deque<CommConstraint> makeConstraints
+ 
 // build union
-static bool buildConstraintsUnion(deque<CommConstraint>& U, deque<CommConstraint> B, const set<string>& namesOfUsedVars, pair<CommConstraint, CommConstraint>& problemConstraints);
-static bool docheckUnequalConstraints(deque<CommConstraint>& U, deque<CommConstraint>& B, deque<CommConstraint>& newU, pair<CommConstraint, CommConstraint>& problemConstraints);
-static bool check(deque<CommConstraint>& A, deque<CommConstraint>& B, pair<CommConstraint, CommConstraint>& problemConstraints);
+//bool buildConstraintsUnion
+//bool docheckUnequalConstraints
+//bool check
 
 /// small help functions:
-static string getParentName(const string& name);
-static bool equalDims(const CommConstraint& a, const CommConstraint& b);
-static bool equalConstraints(const CommConstraint& a, const CommConstraint& b);
-static void addElem(deque<CommConstraint>& comm, const CommConstraint& elem);
-//////
+//string getParentName
+//bool equalDims
+//bool equalConstraints
+//void addElem
 
 // change names of variables in 'constraints'
-static void fixNames(deque<CommConstraint>& constraints, const string& commName);
+//void fixNames
 
 ////// step2: transformation
-
 /// main function
 // peform transformation on every program unit in the file
-static void fixFunctions(SgFile* file, vector<SgStatement*> programUnits, map<string, deque<CommConstraint>>& newCommonDecls,
-    map<string, map<string, deque<CommConstraint>>>& commDecls, const set<string>& badCommon, map<string, set<string>>& notUsedVars);
+//void fixFunctions
 
 // get pairs of names (namesOldToNew) for renaming
-static bool getNamesOldToNew(deque<CommConstraint> newDecl, deque<CommConstraint> oldDecl, map<string, string>& namesOldToNew);
+//bool getNamesOldToNew
 
 // create new symbols for new variables in new common declaration (constraints)
-static void makeCommVarSymbs(const deque<CommConstraint>& constraints, SgFile* file, SgStatement* func, string commName,
-    map<string, SgSymbol*>& symbs, vector<SgSymbol*>& needNewDecl);
+//void makeCommVarSymbs
+
 // delete from program unit all references to names in commVarNames
-static void deleteOldVars(SgStatement* firstSt, const set<string>& commVarNames);
+//void deleteOldVars
 
 // calls fixExpression for each statement, replaces names in data statement
-static void renameVariables(SgStatement* firstSt, const map<string, SgSymbol*>& newVarSymbs, const map<string, string>& namesOldToNew);
+//void renameVariables
+
 // replacing variables or array elements in expression expr if their names are in namesOldToNew
-static SgExpression* fixExpression(SgExpression* expr, const map<string, SgSymbol*>& newSymbs, const map<string, string>& namesOldToNew);
+//SgExpression* fixExpression
 
 // make new exprList exprssion for new declaration decl with symbols from newSymbs
-static SgExpression* makeExprListForCommon(const deque<CommConstraint>& decl, const map<string, SgSymbol*>& newSymbs,
-    SgFile* file, SgStatement* firstSt);
+//SgExpression* makeExprListForCommon
+
 // replace old common declarations with new ones
-static void rewriteCommon(SgStatement* firstSt, map<string, SgExpression*>& commListExprs);
+//void rewriteCommon
 
 /// help functions:
-static SgExpression* makeIdxFromStr(const string& str);
+//SgExpression* makeIdxFromStr(const string& str);
+
 // make new expression of array element
-static SgExpression* newArrElemExpr(const string& newName, const map<string, SgSymbol*>& newSymbs);
-static bool variablePositionComp(const Variable* lhs, const Variable* rhs);
+//SgExpression* newArrElemExpr
+//bool variablePositionComp
 //////
 
-
-
 CommConstraint::CommConstraint(const Variable* var, bool u, const string& funcName, const string& fileName)
 {
     used = u;
@@ -125,7 +122,6 @@ CommConstraint::CommConstraint(const Variable* var, bool u, const string& funcNa
     }
 }
 
-
 CommConstraint::CommConstraint(const string& name, SgType* t, bool u) : used(u), type(t), identifier(name)
 {
     typeVariant = type->variant();
@@ -139,8 +135,7 @@ CommConstraint::CommConstraint(const string& name, SgType* t, bool u, vector<Dec
     size = getSizeOfType(type);
 }
 
-
-string getParentName(const string& name)
+static string getParentName(const string& name)
 {
     size_t len = name.find("%");
     size_t posB = name.find("(");
@@ -154,8 +149,7 @@ string getParentName(const string& name)
     return name.substr(0, len);
 }
 
-
-void getUsesFromExpr(SgExpression* expr, const set<string>& commonVarNames, set<string>& used)
+static void getUsesFromExpr(SgExpression* expr, const set<string>& commonVarNames, set<string>& used)
 {
     if (expr == NULL)
         return;
@@ -194,8 +188,7 @@ void getUsesFromExpr(SgExpression* expr, const set<string>& commonVarNames, set<
     getUsesFromExpr(expr->rhs(), commonVarNames, used);
 }
 
-
-set<string> getUses(SgStatement* firstSt, const set<string>& commonVarNames)
+static set<string> getUses(SgStatement* firstSt, const set<string>& commonVarNames)
 {
     set<string> used;
     SgStatement* lastSt = firstSt->lastNodeOfStmt();
@@ -212,8 +205,7 @@ set<string> getUses(SgStatement* firstSt, const set<string>& commonVarNames)
     return used;
 }
 
-
-bool equalDims(const CommConstraint& a, const CommConstraint& b)
+static bool equalDims(const CommConstraint& a, const CommConstraint& b)
 {
     const vector<pair<int, int>>& adim = a.arrayInfo->GetSizes();
     const vector<pair<int, int>>& bdim = b.arrayInfo->GetSizes();
@@ -224,11 +216,12 @@ bool equalDims(const CommConstraint& a, const CommConstraint& b)
         if (adim[i].second - adim[i].first != bdim[i].second - bdim[i].first)
             return false;
     }
+
+    return true;
 }
 
-
 // TODO: add attributes to CommConstraints, check if a and b have equal attributes
-bool equalConstraints(const CommConstraint& a, const CommConstraint& b)
+static bool equalConstraints(const CommConstraint& a, const CommConstraint& b)
 {
     if ((a.arrayInfo != NULL && b.arrayInfo == NULL) || ((a.arrayInfo == NULL && b.arrayInfo != NULL)))
         return false;
@@ -239,8 +232,7 @@ bool equalConstraints(const CommConstraint& a, const CommConstraint& b)
     return true;
 }
 
-
-void addElem(deque<CommConstraint>& comm, const CommConstraint& elem)
+static void addElem(deque<CommConstraint>& comm, const CommConstraint& elem)
 {
     if (elem.typeVariant == 0 && !comm.empty() && comm.back().typeVariant == 0)
         comm.back().size += elem.size;
@@ -248,9 +240,8 @@ void addElem(deque<CommConstraint>& comm, const CommConstraint& elem)
         comm.push_back(elem);
 }
 
-
 // TODO: check attributes: do not split arrays with pointer or target attributes if check_use == true
-bool splitType(deque<CommConstraint>& d, bool check_use, const set<string>& namesOfUsedVars = {})
+static bool splitType(deque<CommConstraint>& d, bool check_use, const set<string>& namesOfUsedVars = {})
 {
     CommConstraint var = d.front();
     string name = var.identifier;
@@ -298,8 +289,7 @@ bool splitType(deque<CommConstraint>& d, bool check_use, const set<string>& name
     }
 }
 
-
-deque<CommConstraint> makeConstraints(deque<CommConstraint>& constraints, const set<string>& namesOfUsedVars, set<string>& notUsedVars)
+static deque<CommConstraint> makeConstraints(deque<CommConstraint>& constraints, const set<string>& namesOfUsedVars, set<string>& notUsedVars)
 {
     deque<CommConstraint> res;
     while (!constraints.empty())
@@ -316,8 +306,7 @@ deque<CommConstraint> makeConstraints(deque<CommConstraint>& constraints, const
     return res;
 }
 
-
-bool check(deque<CommConstraint>& A, deque<CommConstraint>& B, pair<CommConstraint, CommConstraint>& problemConstraints)
+static bool check(deque<CommConstraint>& A, deque<CommConstraint>& B, pair<CommConstraint, CommConstraint>& problemConstraints)
 {
     while (!A.empty() && !B.empty())
     {
@@ -356,8 +345,8 @@ bool check(deque<CommConstraint>& A, deque<CommConstraint>& B, pair<CommConstrai
     return true;
 }
 
-
-bool docheckUnequalConstraints(deque<CommConstraint>& U, deque<CommConstraint>& B, deque<CommConstraint>& newU, pair<CommConstraint, CommConstraint>& problemConstraints)
+static bool docheckUnequalConstraints(deque<CommConstraint>& U, deque<CommConstraint>& B, deque<CommConstraint>& newU, 
+                                      pair<CommConstraint, CommConstraint>& problemConstraints)
 {
     if (U.front().typeVariant == 0)
     {
@@ -380,8 +369,8 @@ bool docheckUnequalConstraints(deque<CommConstraint>& U, deque<CommConstraint>&
     return true;
 }
 
-
-bool buildConstraintsUnion(deque<CommConstraint>& U, deque<CommConstraint> B, const set<string>& namesOfUsedVars, pair<CommConstraint, CommConstraint>& problemConstraints)
+static bool buildConstraintsUnion(deque<CommConstraint>& U, deque<CommConstraint> B, 
+                                  const set<string>& namesOfUsedVars, pair<CommConstraint, CommConstraint>& problemConstraints)
 {
     deque<CommConstraint> newU;
     while (!U.empty() && !B.empty())
@@ -436,8 +425,8 @@ bool buildConstraintsUnion(deque<CommConstraint>& U, deque<CommConstraint> B, co
     return true;
 }
 
-
-bool getNamesOldToNew(deque<CommConstraint> newDecl, deque<CommConstraint> oldDecl, map<string, string>& namesOldToNew)
+//TODO: check this: newDecl and oldDecl => do these variables need references?
+static bool getNamesOldToNew(deque<CommConstraint> newDecl, deque<CommConstraint> oldDecl, map<string, string>& namesOldToNew)
 {
     bool needChange = false;
     map<string, string> rename;
@@ -502,16 +491,18 @@ bool getNamesOldToNew(deque<CommConstraint> newDecl, deque<CommConstraint> oldDe
             newDecl.pop_front();
         }
     }
+
     if (!oldDecl.empty() || !newDecl.empty())
         needChange = true;
+
     if (needChange)
         namesOldToNew.insert(rename.begin(), rename.end());
+
     return needChange;
 }
 
-
-void makeCommVarSymbs(const deque<CommConstraint>& constraints, SgFile* file, SgStatement* func, string commName,
-    map<string, SgSymbol*>& symbs, vector<SgSymbol*>& needNewDecl)
+static void makeCommVarSymbs(const deque<CommConstraint>& constraints, SgFile* file, SgStatement* func, const string& commName,
+                             map<string, SgSymbol*>& symbs, vector<SgSymbol*>& needNewDecl)
 {
     for (const CommConstraint& var : constraints)
     {
@@ -524,8 +515,7 @@ void makeCommVarSymbs(const deque<CommConstraint>& constraints, SgFile* file, Sg
     }
 }
 
-
-void deleteOldVars(SgStatement* firstSt, const set<string>& commVarNames)
+static void deleteOldVars(SgStatement* firstSt, const set<string>& commVarNames)
 {
     SgStatement* lastSt = firstSt->lastNodeOfStmt();
     vector<SgStatement*> stmtsToDelete;
@@ -571,12 +561,12 @@ void deleteOldVars(SgStatement* firstSt, const set<string>& commVarNames)
         }
         // TODO: delete common variables form attributes statements (like DIM_STAT)
     }
+
     for (SgStatement* st : stmtsToDelete)
         st->deleteStmt();
 }
 
-
-SgExpression* makeIdxFromStr(const string& str)
+static SgExpression* makeIdxFromStr(const string& str)
 {
     vector<SgExpression*> items;
     int num = 0;
@@ -591,13 +581,13 @@ SgExpression* makeIdxFromStr(const string& str)
             num = 0;
         }
     }
+
     reverse(items.begin(), items.end());
     SgExpression* exprList = makeExprList(items, false);
     return exprList;
 }
 
-
-SgExpression* newArrElemExpr(const string& newName, const map<string, SgSymbol*>& newSymbs)
+static SgExpression* newArrElemExpr(const string& newName, const map<string, SgSymbol*>& newSymbs)
 {
     size_t pos = newName.find('(');
     SgExpression* newExpr = new SgArrayRefExp(*newSymbs.at(newName.substr(0, pos)));
@@ -605,11 +595,11 @@ SgExpression* newArrElemExpr(const string& newName, const map<string, SgSymbol*>
     return newExpr;
 }
 
-
-SgExpression* fixExpression(SgExpression* expr, const map<string, SgSymbol*>& newSymbs, const map<string, string>& namesOldToNew)
+static SgExpression* fixExpression(SgExpression* expr, const map<string, SgSymbol*>& newSymbs, const map<string, string>& namesOldToNew)
 {
     if (expr == NULL)
         return NULL;
+
     if (expr->variant() == VAR_REF || expr->variant() == ARRAY_REF)
     {
         string name = expr->symbol()->identifier();
@@ -645,17 +635,18 @@ SgExpression* fixExpression(SgExpression* expr, const map<string, SgSymbol*>& ne
             }
         }
     }
+
     SgExpression* lhs = fixExpression(expr->lhs(), newSymbs, namesOldToNew);
     if (lhs != NULL)
         expr->setLhs(lhs);
+
     SgExpression* rhs = fixExpression(expr->rhs(), newSymbs, namesOldToNew);
     if (rhs != NULL)
         expr->setRhs(rhs);
     return NULL;
 }
 
-
-void renameVariables(SgStatement* firstSt, const map<string, SgSymbol*>& newVarSymbs, const map<string, string>& namesOldToNew)
+static void renameVariables(SgStatement* firstSt, const map<string, SgSymbol*>& newVarSymbs, const map<string, string>& namesOldToNew)
 {
     SgStatement* lastSt = firstSt->lastNodeOfStmt();
     for (SgStatement* curSt = firstSt; curSt != NULL && curSt != lastSt; curSt = curSt->lexNext())
@@ -703,8 +694,7 @@ void renameVariables(SgStatement* firstSt, const map<string, SgSymbol*>& newVarS
     }
 }
 
-
-SgExpression* makeExprListForCommon(const deque<CommConstraint>& decl, const map<string, SgSymbol*>& newSymbs,
+static SgExpression* makeExprListForCommon(const deque<CommConstraint>& decl, const map<string, SgSymbol*>& newSymbs,
     SgFile* file, SgStatement* firstSt)
 {
     vector<SgExpression*> items;
@@ -738,8 +728,7 @@ SgExpression* makeExprListForCommon(const deque<CommConstraint>& decl, const map
     return exprList;
 }
 
-
-void rewriteCommon(SgStatement* firstSt, map<string, SgExpression*>& commListExprs)
+static void rewriteCommon(SgStatement* firstSt, map<string, SgExpression*>& commListExprs)
 {
     vector<SgStatement*> commonStmtsToDelete;
     for (SgStatement* st = firstSt; st != firstSt->lastDeclaration()->lexNext(); st = st->lexNext())
@@ -790,12 +779,12 @@ void rewriteCommon(SgStatement* firstSt, map<string, SgExpression*>& commListExp
                 commonStmtsToDelete.push_back(st);
         }
     }
+
     for (SgStatement* st : commonStmtsToDelete)
         st->deleteStmt();
 }
 
-
-void fixNames(deque<CommConstraint>& constraints, const string& commName)
+static void fixNames(deque<CommConstraint>& constraints, const string& commName)
 {
     for (auto& var : constraints)
     {
@@ -810,26 +799,26 @@ void fixNames(deque<CommConstraint>& constraints, const string& commName)
     }
 }
 
-
-bool variablePositionComp(const Variable* lhs, const Variable* rhs)
+static bool variablePositionComp(const Variable* lhs, const Variable* rhs)
 {
     return lhs->getPosition() < rhs->getPosition();
 }
 
-
-void fixFunctions(SgFile* file, vector<SgStatement*> programUnits, map<string, deque<CommConstraint>>& newCommonDecls,
-    map<string, map<string, deque<CommConstraint>>>& commDecls, const set<string>& badCommon, map<string, set<string>>& notUsedVars)
+static void fixFunctions(SgFile* file, const vector<SgStatement*>& programUnits, map<string, deque<CommConstraint>>& newCommonDecls,
+                         map<string, map<string, deque<CommConstraint>>>& commDecls, const set<string>& badCommon, map<string, set<string>>& notUsedVars)
 {
     for (SgStatement* unitSt : programUnits)
     {
         string funcName = unitSt->symbol()->identifier();
         if (commDecls.find(funcName) == commDecls.end())
             continue;
+
         SgStatement* firstSt = unitSt;
         map<string, SgExpression*> commListExprs;
         map<string, SgSymbol*> newVarSymbs; // new symbols for new variables
         map<string, string> namesOldToNew; // for ranaming: old name -> new name
         vector<SgSymbol*> needNewDecl;
+
         for (auto& common : commDecls[funcName])
         {
             string commName = common.first;
@@ -840,9 +829,11 @@ void fixFunctions(SgFile* file, vector<SgStatement*> programUnits, map<string, d
             bool needChange = getNamesOldToNew(newDecl, common.second, namesOldToNew);
             if (!needChange)
                 continue;
+
             makeCommVarSymbs(newDecl, file, firstSt, commName, newVarSymbs, needNewDecl);
             commListExprs[commName] = makeExprListForCommon(newDecl, newVarSymbs, file, firstSt);
         }
+
         if (!commListExprs.empty())
         {
             for (const auto& item : commListExprs)
@@ -856,10 +847,9 @@ void fixFunctions(SgFile* file, vector<SgStatement*> programUnits, map<string, d
     }
 }
 
-
-void BuildNewCommDecls(SgFile* file, const map<string, CommonBlock*> allCommonBlocks,
-        map<string, deque<CommConstraint>>& newCommonDecls, map<string, map<string, deque<CommConstraint>>>& commDecls,
-        set<string>& badCommon, map<string, set<string>>& notUsedVars, vector<SgStatement*>& programUnits)
+static void buildNewCommDecls(SgFile* file, const map<string, CommonBlock*>& allCommonBlocks,
+                              map<string, deque<CommConstraint>>& newCommonDecls, map<string, map<string, deque<CommConstraint>>>& commDecls,
+                              set<string>& badCommon, map<string, set<string>>& notUsedVars, vector<SgStatement*>& programUnits)
 {
     string fileName = file->filename();
     SgStatement* curSt = file->firstStatement();
@@ -898,7 +888,8 @@ void BuildNewCommDecls(SgFile* file, const map<string, CommonBlock*> allCommonBl
                     constraints.push_back(newConstr);
                 }
                 if (hasChar && hasNotChar)  // TDOO: make proper warning message or separate such common blocks
-                    __spf_print(1, "common block '%s' ('%s':%d) contains variables of symbolic and numeric types. It is required to divide\n", commName.c_str(), fileName.c_str(), constraints.back().uses.back().lineNum);
+                    __spf_print(1, "common block '%s' ('%s':%d) contains variables of symbolic and numeric types. It is required to divide\n", 
+                                    commName.c_str(), fileName.c_str(), constraints.back().uses.back().getLineNum());
                 if (hasChar)
                 {
                     badCommon.insert(commName);
@@ -915,7 +906,7 @@ void BuildNewCommDecls(SgFile* file, const map<string, CommonBlock*> allCommonBl
                     for (auto x : problemConstraints.first.uses)         // TODO: make proper warning message
                         for (auto y : problemConstraints.second.uses)
                             __spf_print(1, "variables '%s' and '%s' in one storage association (common block '%s') have different types (files - %s:%d and %s:%d)\n",
-                                x.varName.c_str(), y.varName.c_str(), commName.c_str(), x.fileName.c_str(), x.lineNum, y.fileName.c_str(), y.lineNum);
+                                            x.getVarName(), y.getVarName(), commName.c_str(), x.getFileName(), x.getLineNum(), y.getFileName(), y.getLineNum());
                 }
             }
             curSt = curSt->lastNodeOfStmt();
@@ -927,7 +918,7 @@ void BuildNewCommDecls(SgFile* file, const map<string, CommonBlock*> allCommonBl
 
 
 // main function
-void fixCommonBlocks(const map<string, vector<FuncInfo*>> allFuncInfo, const map<string, CommonBlock*> allCommonBlocks, SgProject* project)  // TODO: separate into 2 steps?
+void fixCommonBlocks(const map<string, vector<FuncInfo*>>& allFuncInfo, const map<string, CommonBlock*>& allCommonBlocks, SgProject* project)  // TODO: separate into 2 steps?
 {
     int filesNum = project->numberOfFiles();
     map<string, map<string, map<string, deque<CommConstraint>>>> commDecls; // file_name -> function_name -> common block name -> old declaration of common block
@@ -941,10 +932,12 @@ void fixCommonBlocks(const map<string, vector<FuncInfo*>> allFuncInfo, const map
         SgFile* file = &project->file(i);
         string fileName = file->filename();
         file->switchToFile(fileName);
-        BuildNewCommDecls(file, allCommonBlocks, newCommonDecls, commDecls[fileName], badCommon, notUsedVars, programUnitsInFile[fileName]);
+        buildNewCommDecls(file, allCommonBlocks, newCommonDecls, commDecls[fileName], badCommon, notUsedVars, programUnitsInFile[fileName]);
     }
+
     for (auto& elem : newCommonDecls)
         fixNames(elem.second, elem.first);
+
     for (int i = 0; i < filesNum; i++)  // second step
     {
         SgFile* file = &project->file(i);

src/Transformations/GlobalVariables/fix_common_blocks.h

@@ -16,12 +16,18 @@
 
 struct DeclInfo // for error messages
 {
+private:
     std::string varName;
     std::string fileName;
     int lineNum;
 
+public:
     DeclInfo() : varName(""), fileName(""), lineNum(0) {};
     DeclInfo(const std::string& vn, const std::string& fn, int ln) : varName(vn), fileName(fn), lineNum(ln) {};
+
+    const char* getVarName() const { return varName.c_str(); }
+    const char* getFileName() const { return fileName.c_str(); }
+    int getLineNum() const { return lineNum; }
 };
 
 struct CommConstraint  // TODO: add variable attributes
@@ -42,4 +48,4 @@ struct CommConstraint  // TODO: add variable attributes
 };
 
 
-void fixCommonBlocks(const std::map<std::string, std::vector<FuncInfo*>> allFuncInfo, const std::map<std::string, CommonBlock*> allCommonBlocks, SgProject* project);
+void fixCommonBlocks(const std::map<std::string, std::vector<FuncInfo*>>& allFuncInfo, const std::map<std::string, CommonBlock*>& allCommonBlocks, SgProject* project);

src/Transformations/LoopSplitting/loops_splitter.cpp

@@ -19,6 +19,7 @@ using std::pair;
 using std::make_pair;
 using std::wstring;
 using std::stack;
+using SAPFOR::CFG_Settings;
 
 #define PRINT_SPLITTED_FRAGMENTS 0
 
@@ -315,7 +316,7 @@ static map<SgStatement*, pair<set<SgStatement*>, set<SgStatement*>>>
                 printInternalError(convertFileName(__FILE__).c_str(), __LINE__);
 
             map<SAPFOR::Argument*, set<int>> outForCurr;
-            buildGenKillForCFG(itCFG->second, funcByName, outForFunc, gen, kill, &genForIR, &killForIR, notInitedGlobals, SAPFOR::CFG_Settings(0));
+            buildGenKillForCFG(itCFG->second, funcByName, outForFunc, gen, kill, &genForIR, &killForIR, notInitedGlobals, SAPFOR::CFG_Settings());
             
             if (outForFunc.count(byFunc))
                 printInternalError(convertFileName(__FILE__).c_str(), __LINE__);
@@ -1051,7 +1052,8 @@ int splitLoops(SgFile *file, vector<LoopGraph*> &loopGraphs, vector<Messages> &m
                 checkNull(listExp, convertFileName(__FILE__).c_str(), __LINE__);
                 int deep = listExp->length();
                 
-                currIR = buildCFGforCurrentFunc(loop->loop, SAPFOR::CFG_Settings(true, true), commonBlocks, allFuncInfo);
+                const auto settings = CFG_Settings({ CFG_Settings::CFG_atLeastOneIterInLoop, CFG_Settings::CFG_withRD, CFG_Settings::CFG_withCallFrom, CFG_Settings::CFG_withDominators });
+                currIR = buildCFGforCurrentFunc(loop->loop, settings, commonBlocks, allFuncInfo);
                 totalErr = splitLoop(loop, messages, deep, depInfoForLoopGraph);
 
                 if (totalErr > 0)

src/Transformations/MoveOperators/move_operators.cpp

@@ -0,0 +1,602 @@
+#include <map>
+#include <set>
+#include <vector>
+#include <iostream>
+#include <algorithm>
+#include <cstring>
+#include <cstdlib>
+
+#include "../../Utils/errors.h"
+#include "../../Utils/SgUtils.h"
+#include "../../GraphCall/graph_calls.h"
+#include "../../GraphCall/graph_calls_func.h"
+#include "../../CFGraph/CFGraph.h"
+#include "../../CFGraph/IR.h"
+#include "../../GraphLoop/graph_loops.h"
+#include "move_operators.h"
+
+using namespace std;
+
+set<int> loop_tags = {FOR_NODE};
+set<int> control_tags = {IF_NODE, ELSEIF_NODE, DO_WHILE_NODE, WHILE_NODE, LOGIF_NODE};
+set<int> control_end_tags = {CONTROL_END};
+
+
+static vector<SAPFOR::IR_Block*> findInstructionsFromStatement(SgStatement* st, const vector<SAPFOR::BasicBlock*>& blocks)
+{
+    vector<SAPFOR::IR_Block*> result;
+    if (!st)
+        return result;
+
+    const int stmtId = st->id();
+    for (auto* bb : blocks)
+    {
+        if (!bb)
+            continue;
+
+        for (auto* ir : bb->getInstructions())
+        {
+            if (!ir || !ir->getInstruction())
+                continue;
+
+            SgStatement* op = ir->getInstruction()->getOperator();
+            if (op && op->id() == stmtId)
+                result.push_back(ir);
+        }
+    }
+
+    sort(result.begin(), result.end(),
+         [](const SAPFOR::IR_Block* a, const SAPFOR::IR_Block* b) { return a->getNumber() < b->getNumber(); });
+    return result;
+}
+
+vector<SAPFOR::BasicBlock*> findFuncBlocksByFuncStatement(SgStatement *st, const map<FuncInfo*, vector<SAPFOR::BasicBlock*>>& FullIR) {
+    vector<SAPFOR::BasicBlock*> result;
+    if (!st)
+        return result;
+
+    Statement* forSt = (Statement*)st;
+    const string stmtFile = st->fileName();
+    const int stmtLine = st->lineNumber();
+
+    for (auto& func: FullIR) {
+        if (!func.first || !func.first->funcPointer)
+            continue;
+
+        const string funcFile = func.first->fileName;
+        const int funcLine = func.first->funcPointer->lineNumber();
+
+        // Important: select CFG blocks only for the same file and function header.
+        if (funcFile == stmtFile && funcLine == stmtLine)
+        {
+            result = func.second;
+            break;
+        }
+    }
+    return result;
+}
+
+map<SgForStmt*, vector<SAPFOR::BasicBlock*>> findAndAnalyzeLoops(SgStatement *st, const vector<SAPFOR::BasicBlock*>& blocks) {
+    map<SgForStmt*, vector<SAPFOR::BasicBlock*>> result;
+    SgStatement *lastNode = st->lastNodeOfStmt();
+    
+    while (st && st != lastNode) {
+        if (loop_tags.find(st -> variant()) != loop_tags.end()) {
+            SgForStmt *forSt = (SgForStmt*)st;
+            SgStatement *loopBody = forSt -> body();
+            SgStatement *lastLoopNode = st->lastNodeOfStmt();
+            set<int> blocks_nums;
+            
+            while (loopBody && loopBody != lastLoopNode) {
+                vector<SAPFOR::IR_Block*> irBlocks = findInstructionsFromStatement(loopBody, blocks);
+                if (!irBlocks.empty()) {
+                    SAPFOR::IR_Block* IR = irBlocks.front();
+                    if (IR && IR->getBasicBlock()) {
+                        if (blocks_nums.find(IR -> getBasicBlock() -> getNumber()) == blocks_nums.end()) {
+                            result[forSt].push_back(IR -> getBasicBlock());
+                            blocks_nums.insert(IR -> getBasicBlock() -> getNumber());
+                        }
+                    }
+                }
+                loopBody = loopBody -> lexNext();
+            }
+            sort(result[forSt].begin(), result[forSt].end());
+        }
+        st = st -> lexNext();
+    }
+    return result;
+}
+
+
+vector<SAPFOR::BasicBlock*> findBlocksInLoopsByFullIR(
+    SgStatement* funcStmt,
+    const map<FuncInfo*, vector<SAPFOR::BasicBlock*>>& FullIR)
+{
+    vector<SAPFOR::BasicBlock*> result;
+    if (!funcStmt)
+        return result;
+
+    const vector<SAPFOR::BasicBlock*> funcBlocks = findFuncBlocksByFuncStatement(funcStmt, FullIR);
+    const auto loopsMapping = findAndAnalyzeLoops(funcStmt, funcBlocks);
+
+    set<SAPFOR::BasicBlock*> uniq;
+    for (const auto& kv : loopsMapping)
+        for (auto* bb : kv.second)
+            if (bb)
+                uniq.insert(bb);
+
+    result.assign(uniq.begin(), uniq.end());
+    sort(result.begin(), result.end(),
+         [](const SAPFOR::BasicBlock* a, const SAPFOR::BasicBlock* b)
+         {
+             if (!a || !b)
+                 return a < b;
+             return a->getNumber() < b->getNumber();
+         });
+
+    return result;
+}
+
+static map<SgStatement*, vector<SgStatement*>> analyzeBasicBlockIntraDependencies(const SAPFOR::BasicBlock* bb)
+{
+    map<SgStatement*, vector<SgStatement*>> result;
+    if (!bb)
+        return result;
+
+    auto isCompoundStmt = [](SgStatement* st) -> bool
+    {
+        if (!st)
+            return true;
+        const int v = st->variant();
+        return loop_tags.count(v) || control_tags.count(v) || control_end_tags.count(v);
+    };
+
+    auto isTrackable = [](const SAPFOR::Argument* a) -> bool
+    {
+        if (!a)
+            return false;
+        const auto t = a->getType();
+        return t == SAPFOR::CFG_ARG_TYPE::VAR || t == SAPFOR::CFG_ARG_TYPE::REG;
+    };
+
+    auto argKey = [&](const SAPFOR::Argument* a) -> string
+    {
+        if (!a)
+            return string();
+        return to_string((int)a->getType()) + "#" + to_string((int)a->getMemType()) + "#" + a->getValue();
+    };
+
+    auto memKeyFromInstr = [&](const SAPFOR::Instruction* instr) -> string
+    {
+        if (!instr)
+            return string();
+        SgExpression* ex = instr->getExpression();
+        if (!ex)
+            return string();
+
+        auto exprKey = [&](auto&& self, SgExpression* e) -> string
+        {
+            if (!e)
+                return string("_");
+
+            if (auto* ar = isSgArrayRefExp(e))
+            {
+                SgSymbol* sym = ar->symbol() ? OriginalSymbol(ar->symbol()) : nullptr;
+                string key = string("A(") + (sym ? sym->identifier() : "?");
+                const int n = ar->numberOfSubscripts();
+                for (int i = 0; i < n; ++i)
+                {
+                    key += ",";
+                    key += self(self, ar->subscript(i));
+                }
+                key += ")";
+                return key;
+            }
+
+            if (e->variant() == VAR_REF || e->variant() == CONST_REF)
+            {
+                SgSymbol* sym = e->symbol() ? OriginalSymbol(e->symbol()) : nullptr;
+                return string((e->variant() == VAR_REF) ? "V(" : "C(") + (sym ? sym->identifier() : "?") + ")";
+            }
+
+            if (auto* v = isSgValueExp(e))
+            {
+                if (e->variant() == INT_VAL)
+                    return string("I(") + to_string(v->intValue()) + ")";
+                if (e->variant() == BOOL_VAL)
+                    return string("B(") + (v->boolValue() ? "1" : "0") + ")";
+                if (e->variant() == CHAR_VAL)
+                    return string("CH(") + string(1, v->charValue()) + ")";
+                if (e->variant() == FLOAT_VAL)
+                    return string("F(") + (v->floatValue() ? v->floatValue() : "") + ")";
+                if (e->variant() == DOUBLE_VAL)
+                    return string("D(") + (v->doubleValue() ? v->doubleValue() : "") + ")";
+                if (e->variant() == STRING_VAL)
+                    return string("S(") + (v->stringValue() ? v->stringValue() : "") + ")";
+            }
+
+            string key = string("N(") + to_string(e->variant());
+            if (e->lhs())
+                key += ",L=" + self(self, e->lhs());
+            if (e->rhs())
+                key += ",R=" + self(self, e->rhs());
+            key += ")";
+            return key;
+        };
+
+        return "MEMEX#" + exprKey(exprKey, ex);
+    };
+
+    auto isBarrier = [&](const SAPFOR::Instruction* instr) -> bool
+    {
+        if (!instr)
+            return true;
+        const auto op = instr->getOperation();
+        switch (op)
+        {
+        case SAPFOR::CFG_OP::F_CALL:
+        case SAPFOR::CFG_OP::IO_PARAM:
+        case SAPFOR::CFG_OP::DVM_DIR:
+        case SAPFOR::CFG_OP::SPF_DIR:
+        case SAPFOR::CFG_OP::POINTER_ASS:
+        case SAPFOR::CFG_OP::EXIT:
+            return true;
+        default:
+            return false;
+        }
+    };
+
+    auto isDef = [&](const SAPFOR::Instruction* instr) -> bool
+    {
+        if (!instr)
+            return false;
+        SAPFOR::Argument* r = instr->getResult();
+        if (!isTrackable(r))
+            return false;
+
+        const auto op = instr->getOperation();
+        if (op == SAPFOR::CFG_OP::STORE || op == SAPFOR::CFG_OP::REC_REF_STORE)
+            return false;
+
+        return true;
+    };
+
+    // Reaching definitions inside the BasicBlock in straight-line order:
+    // lastDef[var] = last operator in this block that defined it.
+    map<string, pair<SgStatement*, const SAPFOR::Argument*>> lastDef;
+    map<string, pair<SgStatement*, const SAPFOR::Argument*>> lastMemDef;
+    map<SgStatement*, set<SgStatement*>> depsSets;
+
+    for (auto* ir : bb->getInstructions())
+    {
+        if (!ir || !ir->getInstruction())
+            continue;
+
+        const SAPFOR::Instruction* instr = ir->getInstruction();
+        SgStatement* opStmt = instr->getOperator();
+        if (!opStmt)
+            continue;
+        if (isCompoundStmt(opStmt))
+            continue;
+
+        if (isBarrier(instr))
+        {
+            for (auto it = lastDef.begin(); it != lastDef.end();)
+            {
+                const SAPFOR::Argument* a = it->second.second;
+                if (!a || a->isMemGlobal() || a->isParameter())
+                    it = lastDef.erase(it);
+                else
+                    ++it;
+            }
+            for (auto it = lastMemDef.begin(); it != lastMemDef.end();)
+            {
+                const SAPFOR::Argument* a = it->second.second;
+                if (!a || a->isMemGlobal() || a->isParameter())
+                    it = lastMemDef.erase(it);
+                else
+                    ++it;
+            }
+        }
+
+        if (!result.count(opStmt))
+            result[opStmt] = {};
+
+        auto addDep = [&](SAPFOR::Argument* use)
+        {
+            if (!isTrackable(use))
+                return;
+            const string k = argKey(use);
+            auto it = lastDef.find(k);
+            if (it == lastDef.end())
+                return;
+            if (it->second.first && it->second.first != opStmt)
+                depsSets[opStmt].insert(it->second.first);
+        };
+
+        auto addMemDep = [&](const string& key)
+        {
+            if (key.empty())
+                return;
+            auto it = lastMemDef.find(key);
+            if (it == lastMemDef.end())
+                return;
+            if (it->second.first && it->second.first != opStmt)
+                depsSets[opStmt].insert(it->second.first);
+        };
+
+        addDep(instr->getArg1());
+        addDep(instr->getArg2());
+        if (instr->getOperation() == SAPFOR::CFG_OP::RANGE)
+            addDep(instr->getResult());
+
+        if (instr->getOperation() == SAPFOR::CFG_OP::STORE || instr->getOperation() == SAPFOR::CFG_OP::REC_REF_STORE)
+            addDep(instr->getResult());
+
+        if (instr->getOperation() == SAPFOR::CFG_OP::LOAD || instr->getOperation() == SAPFOR::CFG_OP::REC_REF_LOAD)
+        {
+            const string memKey = memKeyFromInstr(instr);
+            addMemDep(memKey);
+        }
+
+        if (isDef(instr))
+        {
+            const string dk = argKey(instr->getResult());
+            lastDef[dk] = { opStmt, instr->getResult() };
+        }
+
+        if (instr->getOperation() == SAPFOR::CFG_OP::STORE || instr->getOperation() == SAPFOR::CFG_OP::REC_REF_STORE)
+        {
+            const string k = memKeyFromInstr(instr);
+            SAPFOR::Argument* base = instr->getArg1();
+            if (!k.empty() && base)
+                lastMemDef[k] = { opStmt, base };
+            addMemDep(k);
+        }
+    }
+
+    for (auto& kv : result)
+    {
+        SgStatement* op = kv.first;
+        auto it = depsSets.find(op);
+        if (it == depsSets.end())
+            continue;
+
+        kv.second.assign(it->second.begin(), it->second.end());
+        sort(kv.second.begin(), kv.second.end(),
+             [](SgStatement* a, SgStatement* b)
+             {
+                 const int la = a ? a->lineNumber() : -1;
+                 const int lb = b ? b->lineNumber() : -1;
+                 if (la != lb)
+                     return la < lb;
+                 return a < b;
+             });
+    }
+
+    return result;
+}
+
+static bool reorderOperatorsInBasicBlockUsingDeps(SAPFOR::BasicBlock* bb, const char* expectedFile)
+{
+    if (!bb)
+        return false;
+
+    auto isCompoundStmt = [](SgStatement* st) -> bool
+    {
+        if (!st)
+            return true;
+        const int v = st->variant();
+        return loop_tags.count(v) || control_tags.count(v) || control_end_tags.count(v);
+    };
+
+    vector<SgStatement*> ops;
+    ops.reserve(bb->getInstructions().size());
+    set<SgStatement*> seen;
+    for (auto* ir : bb->getInstructions())
+    {
+        if (!ir || !ir->getInstruction())
+            continue;
+        SgStatement* st = ir->getInstruction()->getOperator();
+        if (!st || isCompoundStmt(st))
+            continue;
+        if (seen.insert(st).second)
+            ops.push_back(st);
+    }
+
+    if (ops.size() < 2)
+        return false;
+
+    // Check that analyzed BB is in the same file as the expected file
+    const char* bbFile = ops.front()->fileName();
+    if (!bbFile)
+        bbFile = "(unknown)";
+    if (expectedFile && strcmp(expectedFile, bbFile) != 0)
+        return false;
+    for (auto* st : ops)
+    {
+        if (!st || !st->fileName() || strcmp(st->fileName(), bbFile) != 0)
+            return false;
+    }
+
+    SgStatement* parent = ops.front()->controlParent();
+    if (!parent)
+        return false;
+    for (auto* st : ops)
+        if (!st || st->controlParent() != parent)
+            return false;
+
+    set<SgStatement*> opSet(ops.begin(), ops.end());
+    {
+        SgStatement* lastNode = parent->lastNodeOfStmt();
+        SgStatement* cur = ops.front();
+        size_t idx = 0;
+
+        {
+            SgStatement* scan = parent->lexNext();
+            SgStatement* end = lastNode;
+            bool found = false;
+            set<SgStatement*> visited;
+            while (scan && scan != end)
+            {
+                if (!visited.insert(scan).second)
+                    return false;
+                if (scan == ops.front())
+                {
+                    found = true;
+                    break;
+                }
+                scan = scan->lexNext();
+            }
+            if (!found)
+                return false;
+        }
+
+        while (cur && cur != lastNode && idx < ops.size())
+        {
+            if (cur == ops[idx])
+                ++idx;
+            else if (isSgExecutableStatement(cur) && !opSet.count(cur))
+                return false;
+            if (idx == ops.size())
+                break;
+            cur = cur->lexNext();
+        }
+        if (idx != ops.size())
+            return false;
+    }
+
+    // Compute dependencies (inside BB) and build a new order by moving each statement
+    // as close as possible after its last dependency (if any).
+    const auto depsMap = analyzeBasicBlockIntraDependencies(bb);
+    vector<SgStatement*> order = ops;
+
+    auto indexIn = [](const vector<SgStatement*>& v, SgStatement* s) -> int
+    {
+        for (int i = 0; i < (int)v.size(); ++i)
+            if (v[i] == s)
+                return i;
+        return -1;
+    };
+
+    for (SgStatement* s : ops)
+    {
+        auto itDeps = depsMap.find(s);
+        if (itDeps == depsMap.end() || itDeps->second.empty())
+            continue;
+
+        int posS = indexIn(order, s);
+        if (posS < 0)
+            continue;
+
+        int lastDepIdx = -1;
+        for (SgStatement* dep : itDeps->second)
+        {
+            const int j = indexIn(order, dep);
+            if (j >= 0)
+                lastDepIdx = max(lastDepIdx, j);
+        }
+        if (lastDepIdx < 0)
+            continue;
+
+        if (posS == lastDepIdx + 1)
+            continue;
+
+        order.erase(order.begin() + posS);
+
+        int lp = lastDepIdx;
+        if (posS < lastDepIdx)
+            lp = lastDepIdx - 1;
+
+        const int insertAt = lp + 1;
+        order.insert(order.begin() + insertAt, s);
+    }
+
+    bool changed = false;
+    for (size_t i = 0; i < ops.size(); ++i)
+        if (ops[i] != order[i])
+        {
+            changed = true;
+            break;
+        }
+    if (!changed)
+        return false;
+
+    SgStatement* anchor = parent;
+    {
+        SgStatement* scan = parent->lexNext();
+        SgStatement* end = parent->lastNodeOfStmt();
+        while (scan && scan != end)
+        {
+            if (scan == ops.front())
+                break;
+            anchor = scan;
+            scan = scan->lexNext();
+        }
+    }
+
+    // apply AST reordering
+    map<SgStatement*, int> savedLine;
+    map<SgStatement*, char*> savedComments;
+    map<SgStatement*, SgStatement*> extracted;
+
+    for (SgStatement* st : ops)
+    {
+        if (!st)
+            return false;
+
+        savedLine[st] = st->lineNumber();
+        savedComments[st] = st->comments() ? strdup(st->comments()) : nullptr;
+
+        SgStatement* ex = st->extractStmt();
+        if (!ex)
+            return false;
+        extracted[st] = ex;
+    }
+
+    SgStatement* insertAfter = anchor;
+    for (SgStatement* st : order)
+    {
+        SgStatement* ex = extracted[st];
+        if (!ex)
+            continue;
+
+        auto itC = savedComments.find(st);
+        if (itC != savedComments.end() && itC->second)
+            ex->setComments(itC->second);
+
+        auto itL = savedLine.find(st);
+        if (itL != savedLine.end())
+            ex->setlineNumber(itL->second);
+
+        insertAfter->insertStmtAfter(*ex, *parent);
+        insertAfter = ex;
+    }
+
+    for (auto& kv : savedComments)
+        if (kv.second)
+            free(kv.second);
+
+    return true;
+}
+
+void moveOperators(SgFile* file, const map<FuncInfo*, vector<SAPFOR::BasicBlock*>>& FullIR, int& countOfTransform) {
+    if (!file)
+        return;
+    if (SgFile::switchToFile(file->filename()) == -1)
+        printInternalError(convertFileName(__FILE__).c_str(), __LINE__);
+    const int funcNum = file->numberOfFunctions();
+    for (int i = 0; i < funcNum; ++i)
+    {
+        SgStatement* st = file->functions(i);
+
+        const auto loopBlocks = findBlocksInLoopsByFullIR(st, FullIR);
+        for (auto* bb : loopBlocks)
+        {
+            if (!bb)
+                continue;
+            if (reorderOperatorsInBasicBlockUsingDeps(bb, file->filename()))
+                countOfTransform += 1;
+        }
+    }
+}

src/Transformations/MoveOperators/move_operators.h

@@ -0,0 +1,6 @@
+#pragma once
+
+#include "../../GraphLoop/graph_loops.h"
+#include "../../CFGraph/CFGraph.h"
+
+void moveOperators(SgFile* file, const std::map<FuncInfo*, std::vector<SAPFOR::BasicBlock*>>& FullIR, int& countOfTransform);

src/Transformations/PrivateArrayRemoving/private_removing.cpp

@@ -13,6 +13,7 @@ using std::set;
 using std::string;
 using std::vector;
 using std::wstring;
+using SAPFOR::CFG_Settings;
 
 using CFG_Type = map<FuncInfo*, vector<SAPFOR::BasicBlock*>>;
 using UsersDirectives = map<pair<string, int>, set<SgStatement*>>;
@@ -2207,8 +2208,8 @@ static void removePrivateAnalyze(Context *ctx)
         makeDeclaration(ctx->loopStmt, vector<SgSymbol*> {receiverVar}, nullptr)
     ));
 
-    CFG_Type CFG_ForFunc = buildCFGforCurrentFunc(ctx->loopStmt,
-                                                  SAPFOR::CFG_Settings(true, true),
+    const auto settings = CFG_Settings({ CFG_Settings::CFG_atLeastOneIterInLoop, CFG_Settings::CFG_withRD, CFG_Settings::CFG_withCallFrom, CFG_Settings::CFG_withDominators });
+    CFG_Type CFG_ForFunc = buildCFGforCurrentFunc(ctx->loopStmt, settings,
                                                   ctx->commonBlocks, ctx->allFuncInfo);
     if (CFG_ForFunc.empty())
         printInternalError(convertFileName(__FILE__).c_str(), __LINE__);

src/Transformations/ReplaceArraysInIO/replace_dist_arrays_in_io.cpp

@@ -504,7 +504,7 @@ static void replaceArrayInFragment(SgSymbol* replace_symb,
     }
 }
 
-static bool ioReginBorder(SgStatement* stat, SgStatement* last_io_bound)
+static bool ioRegionBorder(SgStatement* stat, SgStatement* last_io_bound)
 {
     auto var = stat->variant();
 
@@ -535,14 +535,24 @@ static bool ioReginBorder(SgStatement* stat, SgStatement* last_io_bound)
     if (last_io_bound && last_io_bound->lastNodeOfStmt() && last_io_bound->lastNodeOfStmt() == stat)
         return true;
 
-    int parent_var;
-
     if (var == CONTROL_END && border_stats.find(stat->controlParent()->variant()) != border_stats.end())
         return true;
 
     return false;
 }
 
+FuncInfo* getCurrentFuncInfo(const vector<FuncInfo*>& fileFuncInfo, int line)
+{
+    for (auto* func : fileFuncInfo)
+    {
+        if (func->linesNum.first <= line && line <= func->linesNum.second)
+            return func;
+    }
+
+    printInternalError(convertFileName(__FILE__).c_str(), __LINE__);
+    return NULL;
+}
+
 void replaceDistributedArraysInIO(vector<ParallelRegion*>& regions,
                                   const map<string, vector<FuncInfo*>>& allFuncInfo,
                                   map<string, vector<Messages>>& SPF_messages,
@@ -562,6 +572,8 @@ void replaceDistributedArraysInIO(vector<ParallelRegion*>& regions,
             if (SgFile::switchToFile(current_file_name) == -1)
                 printInternalError(convertFileName(__FILE__).c_str(), __LINE__);
 
+            FuncInfo *current_func_info = NULL;
+
             auto func_info_it = allFuncInfo.find(current_file_name);
             if (func_info_it == allFuncInfo.end())
                 printInternalError(convertFileName(__FILE__).c_str(), __LINE__);
@@ -588,13 +600,12 @@ void replaceDistributedArraysInIO(vector<ParallelRegion*>& regions,
                 {
                     curr_stmt = lines.stats.first->GetOriginal();
                     end = lines.stats.second->GetOriginal()->lexNext();
+                    current_func_info = getCurrentFuncInfo(func_info_it->second, curr_stmt->lineNumber());
                 }
 
                 map<SgSymbol*, set<SgStatement*>> need_replace;
                 SgStatement* last_io_bound = NULL;
 
-                FuncInfo *current_func_info = NULL;
-
                 while (curr_stmt != end)
                 {
                     if (!curr_stmt)
@@ -604,18 +615,7 @@ void replaceDistributedArraysInIO(vector<ParallelRegion*>& regions,
 
                     if (var == PROC_HEDR || var == PROG_HEDR || var == FUNC_HEDR)
                     {
-                        current_func_info = NULL;
-                        for (auto *func_info : func_info_it->second)
-                        {
-                            if (func_info->funcName == curr_stmt->symbol()->identifier())
-                            {
-                                current_func_info = func_info;
-                                break;
-                            }
-                        }
-
-                        if (!current_func_info)
-                            printInternalError(convertFileName(__FILE__).c_str(), __LINE__);
+                        current_func_info = getCurrentFuncInfo(func_info_it->second, curr_stmt->lineNumber());
 
                         curr_stmt = curr_stmt->lexNext();
                         while (curr_stmt && !isSgExecutableStatement(curr_stmt))
@@ -628,7 +628,7 @@ void replaceDistributedArraysInIO(vector<ParallelRegion*>& regions,
                             break;
                     }
 
-                    if (ioReginBorder(curr_stmt, last_io_bound))
+                    if (ioRegionBorder(curr_stmt, last_io_bound))
                     {
                         for (const auto& by_array_to_copy : need_replace)
                         {

src/Utils/PassManager.h

@@ -206,7 +206,9 @@ void InitPassesDependencies(map<passes, vector<passes>> &passDepsIn, set<passes>
 
     Pass(DEF_USE_STAGE1) <= Pass(DEF_USE_STAGE2);
 
-    list({ VERIFY_DVM_DIRS, PRIVATE_CALL_GRAPH_STAGE1, PRIVATE_CALL_GRAPH_STAGE2, MACRO_EXPANSION, CONVERT_ASSIGN_TO_LOOP, DEF_USE_STAGE1, DEF_USE_STAGE2, FILL_PARALLEL_REG_IR, VERIFY_COMMON, FILL_COMMON_BLOCKS, CALL_GRAPH_IR }) <= list({ SUBST_EXPR, SUBST_EXPR_RD, BUILD_IR });
+    list({ VERIFY_DVM_DIRS, VERIFY_COMMON, FILL_COMMON_BLOCKS, PRIVATE_CALL_GRAPH_STAGE1, PRIVATE_CALL_GRAPH_STAGE2, MACRO_EXPANSION, CONVERT_ASSIGN_TO_LOOP, DEF_USE_STAGE1, DEF_USE_STAGE2, FILL_PARALLEL_REG_IR, CALL_GRAPH_IR }) <= list({ SUBST_EXPR, SUBST_EXPR_RD, BUILD_IR });
+
+    Pass(VERIFY_COMMON) <= Pass(FILL_COMMON_BLOCKS);
 
     Pass(BUILD_IR) <= Pass(SUBST_EXPR) <= Pass(SUBST_EXPR_AND_UNPARSE);
 
@@ -217,7 +219,7 @@ void InitPassesDependencies(map<passes, vector<passes>> &passDepsIn, set<passes>
 
     Pass(RESTORE_LOOP_FROM_ASSIGN) <= list({ SUBST_EXPR_AND_UNPARSE, SUBST_EXPR_RD_AND_UNPARSE });
 
-    Pass(GET_ALL_ARRAY_DECL) <= list({ CALL_GRAPH_IR, INSERT_NO_DISTR_FLAGS_FROM_GUI });
+    Pass(FILL_COMMON_BLOCKS) <= Pass(GET_ALL_ARRAY_DECL) <= list({ CALL_GRAPH_IR, INSERT_NO_DISTR_FLAGS_FROM_GUI });
 
     Pass(LOOP_GRAPH) <= Pass(PRIVATE_CALL_GRAPH_STAGE3) <= list(FIND_FUNC_TO_INCLUDE, PRIVATE_ANALYSIS_IR) <= list({ LOOP_ANALYZER_DATA_DIST_S0, LOOP_ANALYZER_DATA_DIST_S1, ONLY_ARRAY_GRAPH, LOOP_ANALYZER_ALIGNS });
 
@@ -227,7 +229,7 @@ void InitPassesDependencies(map<passes, vector<passes>> &passDepsIn, set<passes>
 
     list({ VERIFY_OPERATORS, VERIFY_ENDDO, VERIFY_INCLUDES, PREPROC_SPF, PREPROC_ALLOCATES, GET_ALL_ARRAY_DECL, GCOV_PARSER }) <= list({ CALL_GRAPH, MACRO_EXPANSION, DEF_USE_STAGE1 });
 
-    list({ VERIFY_OPERATORS, VERIFY_ENDDO, VERIFY_INCLUDES, PREPROC_ALLOCATES, FILL_PARALLEL_REG_IR }) <= list({ GET_ALL_ARRAY_DECL, FILL_COMMON_BLOCKS, PARSE_OMP_DIRS }) <= Pass(PREPROC_SPF);
+    list({ VERIFY_OPERATORS, VERIFY_ENDDO, VERIFY_INCLUDES, PREPROC_ALLOCATES, FILL_PARALLEL_REG_IR }) <= list({ FILL_COMMON_BLOCKS, GET_ALL_ARRAY_DECL, PARSE_OMP_DIRS }) <= Pass(PREPROC_SPF);
 
     Pass(CHECK_PAR_REG_DIR) <= Pass(FILL_PARALLEL_REG_IR);
 
@@ -316,9 +318,12 @@ void InitPassesDependencies(map<passes, vector<passes>> &passDepsIn, set<passes>
 
     list({ VERIFY_INCLUDES, CORRECT_VAR_DECL }) <= Pass(SET_IMPLICIT_NONE);
 
-    list({ CALL_GRAPH2, CALL_GRAPH, BUILD_IR, LOOP_GRAPH, LOOP_ANALYZER_DATA_DIST_S2 }) <= Pass(FIND_PRIVATE_ARRAYS_ANALYSIS);
+    list({ ARRAY_PROPAGATION, CALL_GRAPH2, CALL_GRAPH, BUILD_IR, LOOP_GRAPH, LOOP_ANALYZER_DATA_DIST_S2 }) <= Pass(FIND_PRIVATE_ARRAYS_ANALYSIS);
     list({ FIND_PRIVATE_ARRAYS_ANALYSIS, CONVERT_LOOP_TO_ASSIGN, RESTORE_LOOP_FROM_ASSIGN, REVERT_SUBST_EXPR_RD }) <= Pass(FIND_PRIVATE_ARRAYS);
 
+    list({ BUILD_IR, CALL_GRAPH2, RESTORE_LOOP_FROM_ASSIGN, REVERT_SUBST_EXPR_RD }) <= Pass(MOVE_OPERATORS);
+    Pass(CREATE_TEMPLATE_LINKS) <= Pass(MERGE_REGIONS);
+
     passesIgnoreStateDone.insert({ CREATE_PARALLEL_DIRS, INSERT_PARALLEL_DIRS, INSERT_SHADOW_DIRS, EXTRACT_PARALLEL_DIRS, 
                                    EXTRACT_SHADOW_DIRS, CREATE_REMOTES, UNPARSE_FILE, REMOVE_AND_CALC_SHADOW,
                                    REVERSE_CREATED_NESTED_LOOPS, PREDICT_SCHEME, CALCULATE_STATS_SCHEME, REVERT_SPF_DIRS, CLEAR_SPF_DIRS, TRANSFORM_SHADOW_IF_FULL,

src/Utils/SgUtils.cpp

@@ -577,10 +577,20 @@ string removeIncludeStatsAndUnparse(SgFile *file, const char *fileName, const ch
                 for (auto& incl : inclByPos.second)
                     inlcude += (renameIncludes ? renameInclude(incl) : incl);
 
-            if (st->comments())
-                st->setComments((inlcude + st->comments()).c_str());
+            //check inserted operators
+            SgStatement* toInsert = st;
+            do {
+                auto lexPrev = toInsert->lexPrev();
+                if (lexPrev && lexPrev->variant() > 0 && lexPrev->lineNumber() < 0)
+                    toInsert = lexPrev;
+                else
+                    break;                
+            } while (true);
+
+            if (toInsert->comments())
+                toInsert->setComments((inlcude + toInsert->comments()).c_str());
             else
-                st->addComment(inlcude.c_str());
+                toInsert->addComment(inlcude.c_str());
         }
     }
 
@@ -648,7 +658,7 @@ string removeIncludeStatsAndUnparse(SgFile *file, const char *fileName, const ch
 
                 if (wasDeleted)
                 {
-                    if (str.size() || str.back() != '\n')
+                    if (str.size() && str.back() != '\n')
                         str += '\n';
                     st->setComments(str.c_str());
                 }
@@ -934,8 +944,14 @@ void fillNonDistrArraysAsPrivate(SgStatement *st,
         {
             auto itD = declaredArrays.find(*itSet);
             if (itD != declaredArrays.end())
-                if (itD->second.first->IsNotDistribute())
-                    privatesVars.insert(itD->second.first->GetShortName());
+            {
+                const auto array = itD->second.first;
+                if (array->IsNotDistribute())
+                {
+                    auto symb = array->GetDeclSymbol(make_pair(st->fileName(), st->lineNumber()));
+                    privatesVars.insert(symb->identifier());
+                }
+            }
         }
     }
 }
@@ -953,9 +969,21 @@ DIST::Array* getArrayFromDeclarated(SgStatement *st, const string &arrayName)
         for (auto itSet = it->second.begin(); itSet != it->second.end() && !found; ++itSet)
         {
             auto itD = declaredArrays.find(*itSet);
-            if (itD != declaredArrays.end())
-                if (itD->second.first->GetShortName() == arrayName)
-                    found = itD->second.first;
+            if (itD != declaredArrays.end()) 
+            {
+                DIST::Array* array = itD->second.first;
+                if (array->GetLocation().first == DIST::l_COMMON)
+                {
+                    auto symb = array->GetDeclSymbol(make_pair(st->fileName(), st->lineNumber()));
+                    if (symb && symb->identifier() == arrayName)
+                        found = array;
+                }
+                else
+                {
+                    if (array->GetShortName() == arrayName)
+                        found = array;
+                }
+            }
         }
     }
     return found;
@@ -1264,6 +1292,32 @@ static SgExpression* isInCommon(const vector<SgExpression*> &commonBlocks, const
     return NULL;
 }
 
+//all common block in project
+extern map<string, CommonBlock*> commonBlocks;
+static string getCommonNameOnPos(const string& name, const int commonPos)
+{
+    if (commonBlocks.size() == 0)
+        printInternalError(convertFileName(__FILE__).c_str(), __LINE__);
+
+    auto it = commonBlocks.find(name);
+    if (it == commonBlocks.end())
+        printInternalError(convertFileName(__FILE__).c_str(), __LINE__);
+
+    auto inPos = it->second->getGroupedVars().find(commonPos);
+    if (inPos == it->second->getGroupedVars().end())
+        printInternalError(convertFileName(__FILE__).c_str(), __LINE__);
+
+    set<string> namesOnPos;
+
+    for (auto& var : inPos->second)
+        namesOnPos.insert(var->getName());
+
+    if (namesOnPos.size() == 0)
+        printInternalError(convertFileName(__FILE__).c_str(), __LINE__);
+
+    return *namesOnPos.begin();
+}
+
 static map<tuple<string, string, int>, tuple<int, string, string>> tableOfUniqNames;
 tuple<int, string, string> getUniqName(const map<string, vector<SgExpression*>> &commonBlocks, SgStatement *decl, SgSymbol *symb)
 {
@@ -1272,6 +1326,7 @@ tuple<int, string, string> getUniqName(const map<string, vector<SgExpression*>>
     int commonPos = 0;
 
     SgExpression *foundCommon = NULL;
+    string symbCommn = "";
 
     SgStatement *declCP = decl->controlParent();
     // find symbol in parameter list of functions
@@ -1307,6 +1362,7 @@ tuple<int, string, string> getUniqName(const map<string, vector<SgExpression*>>
             if (foundCommon)
             {
                 inCommon = true;
+                symbCommn = getCommonNameOnPos(common.first, commonPos);
                 break;
             }
         }
@@ -1314,7 +1370,7 @@ tuple<int, string, string> getUniqName(const map<string, vector<SgExpression*>>
 
     tuple<int, string, string> retVal;
     if (inCommon)
-        retVal = make_tuple(commonPos, string("common_") + getCommonName(foundCommon), string(symb->identifier()));
+        retVal = make_tuple(commonPos, string("common_") + getCommonName(foundCommon), symbCommn);
     else
         retVal = make_tuple(decl->lineNumber(), string(decl->fileName()), string(symb->identifier()));
 

src/Utils/module_utils.cpp

@@ -337,10 +337,15 @@ const set<SgSymbol*>& getModuleSymbols(SgStatement *func)
     //if function or module in contains
     auto cp = func->controlParent();
     if (isSgProgHedrStmt(cp) || cp->variant() == MODULE_STMT)
+    {
         getModuleSymbols(cp, symbs);
 
+        if (func->variant() == FUNC_HEDR)
+            symbs.insert(func->symbol());
+    }
+
     symbolsForFunc[func->symbol()->identifier()] = symbs;
-    return symbs;
+    return symbolsForFunc[func->symbol()->identifier()];
 }
 
 static void findSymbol(SgStatement* func, const string& varName, const string& locName,
@@ -349,9 +354,19 @@ static void findSymbol(SgStatement* func, const string& varName, const string& l
     for (const auto& s : getModuleSymbols(func))
     {
         SgSymbol* orig = OriginalSymbol(s);
+        printf("%s == %s\n", orig->identifier(), s->identifier());
         //any suitable symbol can be used
-        if (orig->identifier() == varName && orig->scope()->symbol()->identifier() == locName)
-            altNames[s->identifier()] = s;
+
+        if (orig->variant() == FUNCTION_NAME)
+        {
+            if (orig->identifier() == varName)
+                altNames[s->identifier()] = s;
+        }
+        else
+        {
+            if (orig->identifier() == varName && orig->scope()->symbol()->identifier() == locName)
+                altNames[s->identifier()] = s;
+        }
     }
 }
 
@@ -369,6 +384,7 @@ SgSymbol* getNameInLocation(SgStatement* func, const string& varName, const stri
         return altNames.begin()->second;
     else {
         __spf_print(1, "%s (%s %s) %s\n", func->symbol()->identifier(), clearName.c_str(), varName.c_str(), locName.c_str());
+        findSymbol(func, varName, locName, altNames);
         printInternalError(convertFileName(__FILE__).c_str(), __LINE__);
     }
 

src/Utils/utils.cpp

@@ -569,8 +569,8 @@ void copyIncludes(const set<string> &allIncludeFiles, const map<string, map<int,
 
             while (!feof(oldFile))
             {
-                char buf[8192];
-                char *res = fgets(buf, 16384, oldFile);
+                char buf[16384];
+                char *res = fgets(buf, sizeof(buf), oldFile);
                 if (res == NULL)
                     break;
 

src/Utils/version.h

@@ -1,3 +1,3 @@
 #pragma once
 
-#define VERSION_SPF "2450"
+#define VERSION_SPF "2480"

src/VisualizerCalls/get_information.cpp

@@ -152,7 +152,7 @@ static void setOptions(const short* options, bool isBuildParallel = false, const
             intOptions[z] = -1;
     }
 
-    staticShadowAnalysis = intOptions[STATIC_SHADOW_ANALYSIS];
+    //staticShadowAnalysis = intOptions[STATIC_SHADOW_ANALYSIS];
     staticPrivateAnalysis = intOptions[STATIC_PRIVATE_ANALYSIS];
     out_free_form = intOptions[FREE_FORM];
     if (out_free_form == 1)
@@ -1802,6 +1802,13 @@ int SPF_InsertPrivateArrayDirectives(void*& context, int winHandler, short* opti
     return simpleTransformPass(FIND_PRIVATE_ARRAYS, options, projName, folderName, output, outputMessage);
 }
 
+int SPF_MoveOperators(void*& context, int winHandler, short* options, short* projName, short* folderName, string& output, string& outputMessage)
+{
+    MessageManager::clearCache();
+    MessageManager::setWinHandler(winHandler);
+    return simpleTransformPass(MOVE_OPERATORS, options, projName, folderName, output, outputMessage);
+}
+
 static inline void convertBackSlash(char *str, int strL)
 {
     for (int z = 0; z < strL; ++z)
@@ -2510,6 +2517,8 @@ const wstring Sapfor_RunTransformation(const char* transformName_c, const char*
         retCode = SPF_RenameIncludes(context, winHandler, optSh, projSh, fold, output, outputMessage);
     else if (whichRun == "SPF_InsertPrivateArrayDirectives")
         retCode = SPF_InsertPrivateArrayDirectives(context, winHandler, optSh, projSh, fold, output, outputMessage);
+    else if (whichRun == "SPF_MoveOperators")
+        retCode = SPF_MoveOperators(context, winHandler, optSh, projSh, fold, output, outputMessage);
     else if (whichRun == "SPF_CreateParallelVariant")
     {
         vector<string> splited;