Examples with Xid claw.tatsu.xcodeml.xnode.common.Xid used on opensource projects

Example 6 with Xid

use of claw.tatsu.xcodeml.xnode.common.Xid in project claw-compiler by C2SM-RCM.

the class LoopExtraction method transform.

/**
 * Apply the transformation. A loop extraction is applied in the following
 * steps: 1) Duplicate the function targeted by the transformation 2) Extract
 * the loop body in the duplicated function and remove the loop. 3) Adapt
 * function call and demote array references in the duplicated function body. 4)
 * Optional: Add a LoopFusion transformation to the transformations' queue.
 *
 * @param xcodeml        The XcodeML on which the transformations are applied.
 * @param translator     The translator used to applied the transformations.
 * @param transformation Only for dependent transformation. The other
 *                       transformation part of the transformation.
 * @throws IllegalTransformationException if the transformation cannot be
 *                                        applied.
 */
@Override
public void transform(XcodeProgram xcodeml, Translator translator, Transformation transformation) throws Exception {
    ClawTranslator ct = (ClawTranslator) translator;
    final Context context = ct.context();
    /*
         * DUPLICATE THE FUNCTION
         */
    // Duplicate function definition
    FfunctionDefinition clonedFctDef = _fctDefToExtract.cloneNode();
    String newFctTypeHash = xcodeml.getTypeTable().generateHash(FortranType.FUNCTION);
    String newFctName = clonedFctDef.getName() + ClawConstant.EXTRACTION_SUFFIX + translator.getNextTransformationCounter();
    clonedFctDef.name().setValue(newFctName);
    clonedFctDef.name().setType(newFctTypeHash);
    // Update the symbol table in the fct definition
    Xid fctId = clonedFctDef.getSymbolTable().get(_fctDefToExtract.getName());
    fctId.setType(newFctTypeHash);
    fctId.setName(newFctName);
    // Get the fctType in typeTable
    FfunctionType fctType = xcodeml.getTypeTable().getFunctionType(_fctDefToExtract);
    FfunctionType newFctType = fctType.cloneNode();
    newFctType.setType(newFctTypeHash);
    xcodeml.getTypeTable().add(newFctType);
    // Get the id from the global symbols table
    Xid globalFctId = xcodeml.getGlobalSymbolsTable().get(_fctDefToExtract.getName());
    // If the fct is define in the global symbol table, duplicate it
    if (globalFctId != null) {
        Xid newFctId = globalFctId.cloneNode();
        newFctId.setType(newFctTypeHash);
        newFctId.setName(newFctName);
        xcodeml.getGlobalSymbolsTable().add(newFctId);
    }
    // Insert the duplicated function declaration
    _fctDefToExtract.insertAfter(clonedFctDef);
    // Find the loop that will be extracted
    Xnode loopInClonedFct = locateDoStatement(clonedFctDef);
    Message.debug(context, "loop-extract transformation: " + _claw.getPragma().value());
    Message.debug(context, "  created subroutine: " + clonedFctDef.getName());
    /*
         * REMOVE BODY FROM THE LOOP AND DELETE THE LOOP
         */
    // 1. append body into fct body after loop
    Loop.extractBody(loopInClonedFct);
    // 2. delete loop
    loopInClonedFct.delete();
    /*
         * ADAPT FUNCTION CALL AND DEMOTE ARRAY REFERENCES IN THE BODY OF THE FUNCTION
         */
    // Wrap function call with loop
    Xnode extractedLoop = wrapCallWithLoop(xcodeml, _extractedLoop);
    Message.debug(context, "  call wrapped with loop: " + _fctCall.matchDirectDescendant(Xcode.NAME).value() + " --> " + clonedFctDef.getName());
    // Change called fct name
    _fctCall.matchDirectDescendant(Xcode.NAME).setValue(newFctName);
    _fctCall.matchDirectDescendant(Xcode.NAME).setType(newFctTypeHash);
    // Adapt function call parameters and function declaration
    XdeclTable fctDeclarations = clonedFctDef.getDeclarationTable();
    XsymbolTable fctSymbols = clonedFctDef.getSymbolTable();
    Message.debug(context, "  Start to apply mapping: " + _claw.getMappings().size());
    for (ClawMapping mapping : _claw.getMappings()) {
        Message.debug(context, "Apply mapping (" + mapping.getMappedDimensions() + ") ");
        for (ClawMappingVar var : mapping.getMappedVariables()) {
            Message.debug(context, "  Var: " + var);
            Optional<Xnode> argument = _fctCall.findArg(var.getArgMapping());
            if (!argument.isPresent()) {
                continue;
            }
            /*
                 * Case 1: Var --> ArrayRef Var --> ArrayRef transformation 1. Check that the
                 * variable used as array index exists in the current scope (XdeclTable). If so,
                 * get its type value. Create a Var element for the arrayIndex. Create the
                 * arrayIndex element with Var as child.
                 *
                 * 2. Get the reference type of the base variable. 2.1 Create the varRef element
                 * with the type of base variable 2.2 insert clone of base variable in varRef 3.
                 * Create arrayRef element with varRef + arrayIndex
                 */
            if (argument.get().is(Xcode.VAR)) {
                FbasicType type = xcodeml.getTypeTable().getBasicType(argument.get());
                // Demotion cannot be applied as type dimension is smaller
                if (type.getDimensions() < mapping.getMappedDimensions()) {
                    throw new IllegalTransformationException("mapping dimensions too big. Mapping " + mapping.toString() + " is wrong ...", _claw.getPragma().lineNo());
                }
                Xnode newArg = xcodeml.createNode(Xcode.F_ARRAY_REF);
                newArg.setType(type.getRef());
                Xnode varRef = xcodeml.createNode(Xcode.VAR_REF);
                varRef.setType(argument.get().getType());
                varRef.append(argument.get(), true);
                newArg.append(varRef);
                // create arrayIndex
                for (ClawMappingVar mappingVar : mapping.getMappingVariables()) {
                    Xnode arrayIndex = xcodeml.createNode(Xcode.ARRAY_INDEX);
                    // Find the mapping var in the local table (fct scope)
                    Xnode mappingVarDecl = _fctDef.getDeclarationTable().get(mappingVar.getArgMapping());
                    // Add to arrayIndex
                    Xnode newMappingVar = xcodeml.createVar(mappingVarDecl.getType(), mappingVarDecl.matchSeq(Xcode.NAME).value(), Xscope.LOCAL);
                    arrayIndex.append(newMappingVar);
                    newArg.append(arrayIndex);
                }
                argument.get().insertAfter(newArg);
                argument.get().delete();
            }
            // Case 2: ArrayRef (n arrayIndex) --> ArrayRef (n+m arrayIndex)
            // Change variable declaration in extracted fct
            Xnode varDecl = fctDeclarations.get(var.getFctMapping());
            Xid id = fctSymbols.get(var.getFctMapping());
            FbasicType varDeclType = xcodeml.getTypeTable().getBasicType(varDecl);
            // Case 1: variable is demoted to scalar then take the ref type
            if (varDeclType.getDimensions() == mapping.getMappedDimensions()) {
                Xnode newVarDecl = xcodeml.createNode(Xcode.VAR_DECL);
                newVarDecl.append(xcodeml.createName(var.getFctMapping(), varDeclType.getRef()));
                fctDeclarations.replace(newVarDecl, var.getFctMapping());
                id.setType(varDeclType.getRef());
            }
        }
    // Loop mapped variables
    }
    // Loop over mapping clauses
    // Adapt array reference in function body
    List<Xnode> arrayReferences = clonedFctDef.body().matchAll(Xcode.F_ARRAY_REF);
    for (Xnode ref : arrayReferences) {
        if (!Xnode.isOfCode(ref.matchSeq(Xcode.VAR_REF).child(0), Xcode.VAR)) {
            continue;
        }
        String mappedVar = ref.matchSeq(Xcode.VAR_REF, Xcode.VAR).value();
        if (_fctMappingMap.containsKey(mappedVar)) {
            ClawMapping mapping = _fctMappingMap.get(mappedVar);
            boolean changeRef = true;
            int mappingIndex = 0;
            for (Xnode e : ref.children()) {
                if (e.is(Xcode.ARRAY_INDEX)) {
                    List<Xnode> children = e.children();
                    if (!children.isEmpty() && Xnode.isOfCode(children.get(0), Xcode.VAR)) {
                        String varName = e.matchSeq(Xcode.VAR).value();
                        if (varName.equals(mapping.getMappingVariables().get(mappingIndex).getFctMapping())) {
                            ++mappingIndex;
                        } else {
                            changeRef = false;
                        }
                    }
                }
            }
            if (changeRef) {
                // TODO Var ref should be extracted only if the reference can be
                // totally demoted
                ref.insertBefore(ref.matchSeq(Xcode.VAR_REF, Xcode.VAR).cloneNode());
                ref.delete();
            }
        }
    }
    // Generate directive pragmas if needed
    Xnode grip = null;
    if (_claw.hasClause(ClawClause.ACC)) {
        /*
             * TODO see TODO in ExpandNotation OpenACC and OpenMP loop construct are pretty
             * different ... have to look how to do that properly. See issue #22
             */
        grip = Directive.generateAcceleratorClause(xcodeml, extractedLoop, _claw.value(ClawClause.ACC));
    }
    if (_claw.hasClause(ClawClause.PARALLEL)) {
        Directive.generateParallelRegion(xcodeml, (grip == null) ? extractedLoop : grip, extractedLoop);
    }
    // TODO must be triggered by a clause
    // Directive.generateRoutineDirectives(_claw, xcodeml, clonedFctDef);
    // Add any additional transformation defined in the directive clauses
    ct.generateAdditionalTransformation(_claw, xcodeml, extractedLoop);
    removePragma();
    transformed();
}

Example 7 with Xid

use of claw.tatsu.xcodeml.xnode.common.Xid in project claw-compiler by C2SM-RCM.

the class LoopExtraction method insertDeclaration.

/**
 * Insert new declaration in the function definition.
 *
 * @param id The id used for insertion.
 */
private void insertDeclaration(String id) {
    Xid inductionVarId = _fctDef.getSymbolTable().get(id);
    if (inductionVarId == null) {
        Xid copyId = _fctDefToExtract.getSymbolTable().get(id);
        _fctDef.getSymbolTable().add(copyId);
    }
    Xnode inductionVarDecl = _fctDef.getDeclarationTable().get(id);
    if (inductionVarDecl == null) {
        Xnode copyDecl = _fctDefToExtract.getDeclarationTable().get(id);
        _fctDef.getDeclarationTable().add(copyDecl);
    }
}

Example 8 with Xid

use of claw.tatsu.xcodeml.xnode.common.Xid in project claw-compiler by C2SM-RCM.

the class ScaForward method analyzeForward.

/**
 * Analyze the directive when it is used just before a function call.
 *
 * @param xcodeml Current XcodeML file unit.
 * @return True if the analysis succeed. False otherwise.
 */
private boolean analyzeForward(XcodeProgram xcodeml) {
    final Context context = xcodeml.context();
    if (_fCall == null) {
        xcodeml.addError("Directive is not followed by a fct call.", _claw.getPragma());
        return false;
    }
    detectParameterMapping(context, _fCall);
    _calledFctName = _fCall.getFctName();
    FfunctionDefinition fctDef = xcodeml.getGlobalDeclarationsTable().getFunctionDefinition(_calledFctName);
    FfunctionDefinition parentFctDef = _claw.getPragma().findParentFunction();
    if (parentFctDef == null) {
        xcodeml.addError("SCA directive is not nested in a " + "function/subroutine.", _claw.getPragma());
        return false;
    }
    FmoduleDefinition parentModule = parentFctDef.findParentModule();
    if (_fCall.isTbpCall()) {
        /*
             * If type is a FbasicType element for a type-bound procedure, we have to
             * matchSeq the correct function in the typeTable. TODO if there is a rename.
             * TODO generic call
             */
        Xid id = parentModule.getSymbolTable().get(_calledFctName);
        if (id == null) {
            List<Xnode> uses = parentFctDef.getDeclarationTable().uses();
            uses.addAll(parentModule.getDeclarationTable().uses());
            if (!findInModule(context, uses)) {
                xcodeml.addError("Function definition not found in module ", _claw.getPragma());
                return false;
            }
        } else {
            _fctType = xcodeml.getTypeTable().getFunctionType(id);
        }
    } else {
        if (xcodeml.getTypeTable().isFunctionType(_fCall)) {
            _fctType = xcodeml.getTypeTable().getFunctionType(_fCall);
        } else {
            xcodeml.addError("Unsupported type of XcodeML/F element for the function " + _calledFctName, _claw.getPragma());
            return false;
        }
    }
    /*
         * Workaround for a bug in OMNI Compiler. Look at test case claw/abstraction10.
         * In this test case, the XcodeML/F intermediate representation for the function
         * call points to a FfunctionType element with no parameters. Thus, we have to
         * matchSeq the correct FfunctionType for the same function/subroutine with the
         * same name in the module symbol table.
         */
    if (_fctType.getParameters().isEmpty()) {
        /*
             * If not, try to matchSeq the correct FfunctionType in the module definitions
             */
        Xid id = (parentModule == null) ? null : parentModule.getSymbolTable().get(_calledFctName);
        if (id == null) {
            // Function is not located in the current module.
            List<Xnode> uses = parentFctDef.getDeclarationTable().uses();
            if (parentModule != null) {
                uses.addAll(parentModule.getDeclarationTable().uses());
            }
            if (!findInModule(context, uses)) {
                xcodeml.addError(String.format("Function definition %s not found in module.", _calledFctName), _claw.getPragma());
                return false;
            }
        } else {
            _fctType = xcodeml.getTypeTable().getFunctionType(id);
            if (_fctType == null) {
                xcodeml.addError("Called function cannot be found in the same module ", _claw.getPragma());
                return false;
            }
        }
    }
    // end of workaround
    _callingFctName = parentFctDef.getName();
    if (_fctType != null && fctDef != null) {
        _localFct = true;
    } else {
        // Has been found already
        if (_fctType != null && _calledFctName == null) {
            return true;
        }
        // Get all the use statements in the fct and module definitions
        List<Xnode> uses = parentFctDef.getDeclarationTable().uses();
        if (parentModule != null) {
            uses.addAll(parentModule.getDeclarationTable().uses());
        }
        // Try to locate the fct in the modules defined in use statements
        if (findInModule(context, uses)) {
            return true;
        }
        xcodeml.addError("Function signature not found in the current module.", _claw.getPragma());
        return false;
    }
    return true;
}

Example 9 with Xid

use of claw.tatsu.xcodeml.xnode.common.Xid in project claw-compiler by C2SM-RCM.

the class XmlHelper method createXidFromString.

public static Xid createXidFromString(String xml) {
    Xnode n = XmlHelper.getElementFromString(xml);
    assertNotNull(n);
    return new Xid(n);
}