get def use for array

sapfor/experts/Sapfor_2017/CMakeLists.txt

@@ -193,6 +193,8 @@ set(TR_CONV _src/Transformations/convert_to_c.cpp
         _src/Transformations/convert_to_c.h)
 set(TR_IMPLICIT_NONE _src/Transformations/set_implicit_none.cpp
         _src/Transformations/set_implicit_none.h)
+set(FIND_PRIVATE_ARRAYS _src/PrivateArrays/private_arrays_search.cpp
+        _src/PrivateArrays/private_arrays_search.h)
 
 set(TRANSFORMS 
         ${TR_DEAD_CODE}
@@ -419,7 +421,8 @@ set(SOURCE_EXE
     ${ZLIB}
     ${GR_LAYOUT}
     ${PR_PARAM}
-    ${PROJ_MAN})
+    ${PROJ_MAN}
+    ${FIND_PRIVATE_ARRAYS})
 
 add_executable(Sapfor_F ${SOURCE_EXE})
 source_group (CFGraph FILES ${CFG})
@@ -471,6 +474,8 @@ source_group (Predictor FILES ${PREDICTOR})
 source_group (Parser FILES ${PARSER})
 source_group (PPPA\\PPPA FILES ${PPPA})
 source_group (PPPA\\ZLib FILES ${ZLIB})
+
+source_group (PrivateArrays FILES ${FIND_PRIVATE_ARRAYS})
    
 if (MSVC_IDE)   
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /MP /Zc:__cplusplus")

sapfor/experts/Sapfor_2017/_src/PrivateArrays/private_arrays_search.cpp

@@ -0,0 +1,195 @@
+#include <map>
+#include <unordered_set>
+#include <vector>
+#include <queue>
+#include <iostream>
+
+#include "private_arrays_search.h"
+
+void print_info(LoopGraph* loop)
+{
+    std::cout << "loopSymbol: " << loop->loopSymbol << std::endl;
+    for (const auto ops : loop->writeOpsForLoop)
+    {
+        std::cout << "Array name: " << ops.first->GetShortName() << std::endl;
+        for (const auto i : ops.second)
+        {
+            i.printInfo();
+        }
+    }
+    if (!loop->children.empty())
+    {
+        for (const auto child : loop->children)
+        {
+            print_info(child);
+        }
+    }
+}
+
+static bool isParentStmt(SgStatement* stmt, SgStatement* parent)
+{
+    for (; stmt; stmt = stmt->controlParent())
+        if (stmt == parent)
+            return true;
+
+    return false;
+}
+
+/*returns head block and loop*/
+std::pair<SAPFOR::BasicBlock*, std::unordered_set<SAPFOR::BasicBlock*>> GetBasicBlocksForLoop(LoopGraph* loop, std::vector<SAPFOR::BasicBlock*> blocks)
+{
+    std::unordered_set<SAPFOR::BasicBlock*> block_loop;
+    SAPFOR::BasicBlock* head_block = nullptr;
+    auto loop_operator = loop->loop->GetOriginal();
+    for (auto& block : blocks)
+    {
+        if (!block || (block->getInstructions().size() == 0))
+            continue;
+        SgStatement* first = block->getInstructions().front()->getInstruction()->getOperator();
+        SgStatement* last = block->getInstructions().back()->getInstruction()->getOperator();
+        if (isParentStmt(first, loop_operator) && isParentStmt(last, loop_operator))
+        {
+            block_loop.insert(block);
+
+            if ((!head_block) && (first == loop_operator) && (last == loop_operator) &&
+                (block->getInstructions().size() == 2) &&
+                (block->getInstructions().back()->getInstruction()->getOperation() == SAPFOR::CFG_OP::JUMP_IF))
+            {
+                head_block = block;
+            }
+
+        }
+    }
+    return { head_block, block_loop };
+}
+
+LoopGraph* FindLoopForIndex(std::string var_name, LoopGraph* loop)
+{
+    if (loop->loopSymbol == var_name)
+        return loop;
+    else if (loop->children.empty()) {
+        return nullptr;
+    }
+    else
+    {
+        for (auto& child : loop->children)
+        {
+            LoopGraph* res = FindLoopForIndex(var_name, child);
+            if (res)
+                return res;
+        }
+    }
+}
+
+void GetDefUseArray(SAPFOR::BasicBlock* block, LoopGraph* loop, ArrayAccessingIndexes& def, ArrayAccessingIndexes& use) {
+    
+    auto instructions = block->getInstructions();
+    for(int i = 0; i < instructions.size(); i++)
+    {
+        auto instruction = instructions[i];
+        if ((instruction->getInstruction()->getOperation() == SAPFOR::CFG_OP::STORE && instruction->getInstruction()->getArg1()->getType() == SAPFOR::CFG_ARG_TYPE::ARRAY) ||
+            (instruction->getInstruction()->getOperation() == SAPFOR::CFG_OP::LOAD && instruction->getInstruction()->getArg2()->getType() == SAPFOR::CFG_ARG_TYPE::ARRAY))
+        {
+            SAPFOR::CFG_OP operation = instruction->getInstruction()->getOperation();
+            std::queue<SAPFOR::Argument*> index_vars;
+            std::string array_name;
+            if(operation == SAPFOR::CFG_OP::STORE)
+                array_name = instruction->getInstruction()->getArg1()->getValue();
+            else
+                array_name = instruction->getInstruction()->getArg2()->getValue();
+            int j = i - 1;
+            while (j >= 0 && instructions[j]->getInstruction()->getOperation() == SAPFOR::CFG_OP::REF)
+            {
+                index_vars.push(instructions[j]->getInstruction()->getArg1());
+            }
+            /*to choose correct dimension*/
+            int n = index_vars.size();
+            if (operation == SAPFOR::CFG_OP::STORE)
+            {
+                if (def[array_name].empty())
+                    def[array_name].resize(n);
+            }
+            else
+            {
+                if (use[array_name].empty())
+                    use[array_name].resize(n);
+            }
+            while (!index_vars.empty())
+            {
+                auto var = index_vars.front();
+                ArrayDimension current_dim;
+                if (var->getType() == SAPFOR::CFG_ARG_TYPE::CONST) {
+                    current_dim = { stol(var->getValue()), 0, 1 };
+                }
+                else
+                {
+                    std::string full_name = var->getValue();
+                    int pos = full_name.find('%');
+                    LoopGraph* current_loop = FindLoopForIndex(full_name.substr(pos), loop);
+                    current_dim = { loop->startVal, loop->stepVal, loop->calculatedCountOfIters };
+                }
+                if (operation == SAPFOR::CFG_OP::STORE)
+                    def[array_name][n - index_vars.size()].push_back(current_dim);
+                else
+                    use[array_name][n - index_vars.size()].push_back(current_dim);
+                index_vars.pop();
+            }
+        }
+    }
+
+}
+
+
+
+
+void FindPrivateArrays(std::map<std::string, std::vector<LoopGraph*>> &loopGraph, std::map<FuncInfo*, std::vector<SAPFOR::BasicBlock*>>& FullIR)
+{   
+    for (const auto& curr_graph_pair: loopGraph)
+    {
+        for (const auto& curr_loop : curr_graph_pair.second)
+        {
+            ArrayAccessingIndexes loopDimensionsInfo;
+            //GetDimensionInfo(curr_loop, loopDimensionsInfo, 0);
+            //print_info(curr_loop);
+        }
+    }
+}
+
+void GetDimensionInfo(LoopGraph* loop, std::map<DIST::Array*, std::vector<std::vector<ArrayDimension>>>& loopDimensionsInfo, int level)
+{
+    std::cout << "line_num: " << loop->lineNum << std::endl;
+    for (const auto& writeOpPairs : loop->writeOpsForLoop)
+    {
+        std::vector<std::vector<ArrayDimension>> arrayDimensions(writeOpPairs.first->GetDimSize());
+        loopDimensionsInfo[writeOpPairs.first] = arrayDimensions;
+        for (const auto& writeOp : writeOpPairs.second)
+        {
+            for (const auto& coeficient_pair : writeOp.coefficients)
+            {
+                int64_t start, step, tripCount;
+                start = loop->startVal * coeficient_pair.first.first + coeficient_pair.first.second;
+                step = loop->stepVal * coeficient_pair.first.first;
+                tripCount = (loop->endVal - coeficient_pair.first.second) / step;
+                if (start <= loop->endVal)
+                {
+                    loopDimensionsInfo[writeOpPairs.first][level].push_back({start, step, tripCount});
+                    std::cout << "level: " << level << std::endl;
+                    std::cout << "start: " << start << std::endl;
+                    std::cout << "step: " << step << std::endl;
+                    std::cout << "trip_count: " << tripCount << std::endl;
+                    std::cout << std::endl;
+                }
+                
+                
+            }
+        }
+    }
+    std::cout << "line_num_after: " << loop->lineNumAfterLoop << std::endl;
+    if (!loop->children.empty())
+    {
+        for (const auto& childLoop : loop->children)
+        {
+            GetDimensionInfo(childLoop, loopDimensionsInfo, level+1);
+        }
+    }
+}

sapfor/experts/Sapfor_2017/_src/PrivateArrays/private_arrays_search.h

@@ -0,0 +1,15 @@
+#pragma once
+
+#include "../GraphLoop/graph_loops.h"
+#include "../CFGraph/CFGraph.h"
+
+struct ArrayDimension 
+{
+    int64_t start, step, tripCount;
+};
+
+typedef  std::map<std::string, std::vector<std::vector<ArrayDimension>>>  ArrayAccessingIndexes;
+
+void FindPrivateArrays(std::map<std::string, std::vector<LoopGraph*>>& loopGraph, std::map<FuncInfo*, std::vector<SAPFOR::BasicBlock*>>& FullIR);
+void GetDimensionInfo(LoopGraph* loop, std::map<DIST::Array*, std::vector<std::vector<ArrayDimension>>>& loopDimensionsInfo, int level);
+std::set<SAPFOR::BasicBlock> GetBasicBlocksForLoop(LoopGraph* loop, std::vector<SAPFOR::BasicBlock>);

sapfor/experts/Sapfor_2017/_src/Sapfor.cpp

@@ -96,6 +96,8 @@
 
 #include "Inliner/inliner.h"
 
+#include "PrivateArrays/private_arrays_search.h"
+
 #include "dvm.h"
 #include "Sapfor.h"
 #include "Utils/PassManager.h"
@@ -1898,7 +1900,9 @@ static bool runAnalysis(SgProject &project, const int curr_regime, const bool ne
         calculateStatsForPredictor(allFuncInfo, gCovInfo);
         parseDvmDirForPredictor(allFuncInfo, gCovInfo);
     }
-
+    else if (curr_regime == FIND_PRIVATE_ARRAYS) {
+        FindPrivateArrays(loopGraph, fullIR);
+    }
     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.;
     __spf_print(1, "PROFILE: time for this pass = %f sec (total %f sec)\n", elapsed, elapsedGlobal);

sapfor/experts/Sapfor_2017/_src/Sapfor.h

@@ -180,6 +180,8 @@ enum passes {
     SET_IMPLICIT_NONE,
     RENAME_INLCUDES,
 
+    FIND_PRIVATE_ARRAYS,
+
     TEST_PASS,
     EMPTY_PASS
 };
@@ -363,6 +365,8 @@ static void setPassValues()
     passNames[RENAME_INLCUDES] = "RENAME_INLCUDES";
     passNames[INSERT_NO_DISTR_FLAGS_FROM_GUI] = "INSERT_NO_DISTR_FLAGS_FROM_GUI";
 
+    passNames[FIND_PRIVATE_ARRAYS] = "FIND_PRIVATE_ARRAYS";
+
     passNames[TEST_PASS] = "TEST_PASS";
 }
 

sapfor/experts/Sapfor_2017/_src/Utils/PassManager.h

@@ -312,6 +312,8 @@ void InitPassesDependencies(map<passes, vector<passes>> &passDepsIn, set<passes>
 
     list({ VERIFY_INCLUDES, CORRECT_VAR_DECL }) <= Pass(SET_IMPLICIT_NONE);
 
+    list({ CALL_GRAPH2, LOOP_ANALYZER_DATA_DIST_S1 }) <= Pass(FIND_PRIVATE_ARRAYS);
+
     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,