use of com.oracle.truffle.dsl.processor.java.model.CodeTree in project graal by oracle.
the class FlatNodeGenFactory method visitSpecializationGroup.
private CodeTree visitSpecializationGroup(CodeTreeBuilder parent, SpecializationGroup group, ExecutableTypeData forType, FrameState frameState, List<SpecializationData> allowedSpecializations, NodeExecutionMode mode) {
CodeTreeBuilder builder = parent.create();
boolean hasFallthrough = false;
boolean hasImplicitCast = false;
List<IfTriple> cachedTriples = new ArrayList<>();
for (TypeGuard guard : group.getTypeGuards()) {
IfTriple triple = createTypeCheckOrCast(frameState, group, guard, mode, false, true);
if (triple != null) {
cachedTriples.add(triple);
}
hasImplicitCast = hasImplicitCast || node.getTypeSystem().hasImplicitSourceTypes(guard.getType());
if (!mode.isGuardFallback()) {
triple = createTypeCheckOrCast(frameState, group, guard, mode, true, true);
if (triple != null) {
cachedTriples.add(triple);
}
}
}
SpecializationData specialization = group.getSpecialization();
SpecializationData[] specializations = group.collectSpecializations().toArray(new SpecializationData[0]);
List<GuardExpression> guardExpressions = new ArrayList<>(group.getGuards());
// out of the loop.
if (specialization != null && specialization.hasMultipleInstances()) {
List<GuardExpression> unboundGuards = new ArrayList<>();
for (GuardExpression guard : guardExpressions) {
if (!specialization.isGuardBoundWithCache(guard)) {
unboundGuards.add(guard);
} else {
// we need to stop as we need to ensure guard execution order
break;
}
}
cachedTriples.addAll(createMethodGuardCheck(frameState, group, unboundGuards, mode));
guardExpressions.removeAll(unboundGuards);
}
boolean useSpecializationClass = specialization != null && useSpecializationClass(specialization);
if (mode.isFastPath()) {
int ifCount = 0;
final boolean stateGuaranteed = group.isLast() && allowedSpecializations != null && allowedSpecializations.size() == 1 && group.getAllSpecializations().size() == allowedSpecializations.size();
if ((!group.isEmpty() || specialization != null)) {
CodeTree stateCheck = state.createContains(frameState, specializations);
CodeTree stateGuard = null;
CodeTree assertCheck = null;
if (stateGuaranteed) {
assertCheck = CodeTreeBuilder.createBuilder().startAssert().tree(stateCheck).end().build();
} else {
stateGuard = stateCheck;
}
cachedTriples.add(0, new IfTriple(null, stateGuard, assertCheck));
}
ifCount += IfTriple.materialize(builder, IfTriple.optimize(cachedTriples), false);
// reset current triples
cachedTriples = new ArrayList<>();
String specializationLocalName = null;
if (useSpecializationClass) {
specializationLocalName = createSpecializationLocalName(specialization);
builder.tree(loadSpecializationClass(frameState, specialization));
if (specialization.getMaximumNumberOfInstances() > 1) {
builder.startWhile();
} else {
builder.startIf();
}
builder.string(specializationLocalName, " != null");
builder.end();
builder.startBlock();
ifCount++;
}
if (specialization != null) {
if (!specialization.getAssumptionExpressions().isEmpty()) {
builder.tree(createFastPathAssumptionCheck(builder, specialization, forType, frameState));
}
}
cachedTriples = createMethodGuardCheck(frameState, group, guardExpressions, mode);
int innerIfCount = IfTriple.materialize(builder, IfTriple.optimize(cachedTriples), false);
SpecializationGroup prev = null;
for (SpecializationGroup child : group.getChildren()) {
if (prev != null && !prev.hasFallthrough()) {
break;
}
builder.tree(visitSpecializationGroup(builder, child, forType, frameState.copy(), allowedSpecializations, mode));
}
if (specialization != null && (prev == null || prev.hasFallthrough())) {
builder.tree(createFastPathExecute(builder, forType, specialization, frameState));
}
builder.end(innerIfCount);
hasFallthrough |= innerIfCount > 0;
if (useSpecializationClass && specialization.getMaximumNumberOfInstances() > 1) {
String name = createSpecializationLocalName(specialization);
builder.startStatement().string(name, " = ", name, ".next_").end();
}
builder.end(ifCount);
hasFallthrough |= ifCount > 0;
} else if (mode.isSlowPath()) {
if (specialization != null && mayBeExcluded(specialization)) {
CodeTree excludeCheck = exclude.createNotContains(frameState, specializations);
cachedTriples.add(0, new IfTriple(null, excludeCheck, null));
}
int outerIfCount = 0;
if (specialization == null) {
cachedTriples.addAll(createMethodGuardCheck(frameState, group, guardExpressions, mode));
outerIfCount += IfTriple.materialize(builder, IfTriple.optimize(cachedTriples), false);
SpecializationGroup prev = null;
for (SpecializationGroup child : group.getChildren()) {
if (prev != null && !prev.hasFallthrough()) {
break;
}
builder.tree(visitSpecializationGroup(builder, child, forType, frameState.copy(), allowedSpecializations, mode));
prev = child;
}
} else {
outerIfCount += IfTriple.materialize(builder, IfTriple.optimize(cachedTriples), false);
String countName = specialization != null ? "count" + specialization.getIndex() + "_" : null;
boolean needsDuplicationCheck = specialization.isGuardBindsCache() || specialization.hasMultipleInstances();
boolean useDuplicateFlag = specialization.isGuardBindsCache() && !specialization.hasMultipleInstances();
String duplicateFoundName = specialization.getId() + "_duplicateFound_";
int innerIfCount = 0;
String specializationLocalName = createSpecializationLocalName(specialization);
if (needsDuplicationCheck) {
builder.tree(createDuplicationCheck(builder, frameState, group, guardExpressions, useDuplicateFlag, countName, duplicateFoundName, specializationLocalName));
builder.startIf();
if (useDuplicateFlag) {
// we reuse the specialization class local name instead of a duplicate found
// name
builder.string("!", duplicateFoundName);
} else {
builder.string(createSpecializationLocalName(specialization), " == null");
}
builder.end().startBlock();
innerIfCount++;
}
List<IfTriple> innerTripples = createMethodGuardCheck(frameState, group, guardExpressions, mode);
List<AssumptionExpression> assumptions = specialization.getAssumptionExpressions();
if (!assumptions.isEmpty()) {
for (AssumptionExpression assumption : assumptions) {
innerTripples.addAll(createAssumptionSlowPathTriples(frameState, group, assumption));
}
}
if (specialization.hasMultipleInstances()) {
DSLExpression limit = specialization.getLimitExpression();
innerTripples.addAll(initializeCaches(frameState, group, specialization.getBoundCaches(limit), NodeExecutionMode.SLOW_PATH, true, false));
CodeTree limitExpression = DSLExpressionGenerator.write(limit, null, castBoundTypes(bindExpressionValues(frameState, limit, specialization)));
CodeTree limitCondition = CodeTreeBuilder.createBuilder().string(countName).string(" < ").tree(limitExpression).build();
innerTripples.add(new IfTriple(null, limitCondition, null));
// assert that specialization is not initialized
// otherwise we have been inserting invalid instances
assertSpecializationClassNotInitialized(frameState, specialization);
} else if (needsDuplicationCheck) {
innerTripples.add(new IfTriple(null, state.createNotContains(frameState, new Object[] { specialization }), null));
}
innerIfCount += IfTriple.materialize(builder, IfTriple.optimize(innerTripples), false);
builder.tree(createSpecialize(builder, frameState, group, specialization));
if (needsDuplicationCheck) {
hasFallthrough = true;
if (useDuplicateFlag) {
builder.startStatement().string(duplicateFoundName, " = true").end();
}
builder.end(innerIfCount);
// need to ensure that we update the implicit cast specializations on duplicates
CodeTree updateImplicitCast = createUpdateImplicitCastState(builder, frameState, specialization);
if (updateImplicitCast != null) {
builder.startElseBlock();
builder.tree(createUpdateImplicitCastState(builder, frameState, specialization));
builder.tree(state.createSet(frameState, new Object[] { specialization }, true, true));
builder.end();
}
builder.startIf();
if (useDuplicateFlag) {
builder.string(duplicateFoundName);
} else {
builder.string(createSpecializationLocalName(specialization), " != null");
}
builder.end().startBlock();
builder.tree(createExecute(builder, frameState, executeAndSpecializeType, specialization, mode));
builder.end();
} else {
builder.tree(createExecute(builder, frameState, executeAndSpecializeType, specialization, mode));
builder.end(innerIfCount);
hasFallthrough |= innerIfCount > 0;
}
}
builder.end(outerIfCount);
hasFallthrough |= outerIfCount > 0;
} else if (mode.isGuardFallback()) {
int ifCount = 0;
if (specialization != null && specialization.getMaximumNumberOfInstances() > 1) {
throw new AssertionError("unsupported path. should be caught by parser..");
}
int innerIfCount = 0;
cachedTriples.addAll(createMethodGuardCheck(frameState, group, guardExpressions, mode));
cachedTriples.addAll(createAssumptionCheckTriples(frameState, specialization));
cachedTriples = IfTriple.optimize(cachedTriples);
if (specialization != null && !hasImplicitCast) {
IfTriple singleCondition = null;
if (cachedTriples.size() == 1) {
singleCondition = cachedTriples.get(0);
}
if (singleCondition != null) {
int index = cachedTriples.indexOf(singleCondition);
CodeTree stateCheck = state.createNotContains(frameState, specializations);
cachedTriples.set(index, new IfTriple(singleCondition.prepare, combineTrees(" && ", stateCheck, singleCondition.condition), singleCondition.statements));
fallbackNeedsState = true;
}
}
innerIfCount += IfTriple.materialize(builder, cachedTriples, false);
SpecializationGroup prev = null;
for (SpecializationGroup child : group.getChildren()) {
if (prev != null && !prev.hasFallthrough()) {
break;
}
builder.tree(visitSpecializationGroup(builder, child, forType, frameState.copy(), allowedSpecializations, mode));
prev = child;
}
if (specialization != null) {
builder.returnFalse();
}
builder.end(innerIfCount);
builder.end(ifCount);
hasFallthrough |= ifCount > 0 || innerIfCount > 0;
} else {
throw new AssertionError("unexpected path");
}
group.setFallthrough(hasFallthrough);
return builder.build();
}
use of com.oracle.truffle.dsl.processor.java.model.CodeTree in project graal by oracle.
the class FlatNodeGenFactory method createGetCostMethod.
private Element createGetCostMethod() {
TypeMirror returnType = getType(NodeCost.class);
CodeExecutableElement executable = new CodeExecutableElement(modifiers(PUBLIC), returnType, "getCost");
executable.getAnnotationMirrors().add(new CodeAnnotationMirror(context.getDeclaredType(Override.class)));
CodeTreeBuilder builder = executable.createBuilder();
FrameState frameState = FrameState.load(this);
builder.tree(state.createLoad(frameState));
if (node.needsRewrites(context)) {
builder.startIf().tree(state.createIs(frameState, new Object[0], reachableSpecializationsArray)).end();
builder.startBlock();
builder.startReturn().staticReference(getType(NodeCost.class), "UNINITIALIZED").end();
builder.end();
if (reachableSpecializations.size() == 1 && !reachableSpecializations.iterator().next().hasMultipleInstances()) {
builder.startElseBlock();
builder.startReturn().staticReference(getType(NodeCost.class), "MONOMORPHIC").end();
builder.end();
} else {
builder.startElseIf();
builder.tree(state.createIsOneBitOf(frameState, reachableSpecializationsArray));
builder.end();
builder.startBlock();
List<CodeTree> additionalChecks = new ArrayList<>();
for (SpecializationData specialization : reachableSpecializations) {
if (useSpecializationClass(specialization) && specialization.getMaximumNumberOfInstances() > 1) {
String typeName = createSpecializationTypeName(specialization);
String fieldName = createSpecializationFieldName(specialization);
String localName = createSpecializationLocalName(specialization);
builder.declaration(typeName, localName, "this." + fieldName);
CodeTree check = builder.create().startParantheses().string(localName, " == null || ", localName, ".next_ == null").end().build();
additionalChecks.add(check);
}
}
if (!additionalChecks.isEmpty()) {
builder.startIf().tree(combineTrees(" && ", additionalChecks.toArray(new CodeTree[0]))).end().startBlock();
}
builder.startReturn().staticReference(getType(NodeCost.class), "MONOMORPHIC").end();
if (!additionalChecks.isEmpty()) {
builder.end();
}
builder.end();
builder.startReturn().staticReference(getType(NodeCost.class), "POLYMORPHIC").end();
}
} else {
builder.startReturn().staticReference(getType(NodeCost.class), "MONOMORPHIC").end();
}
return executable;
}
use of com.oracle.truffle.dsl.processor.java.model.CodeTree in project graal by oracle.
the class FlatNodeGenFactory method createExecuteChildImplicitCast.
private ChildExecutionResult createExecuteChildImplicitCast(CodeTreeBuilder parent, FrameState originalFrameState, FrameState frameState, NodeExecutionData execution, LocalVariable target) {
CodeTreeBuilder builder = parent.create();
List<TypeMirror> originalSourceTypes = typeSystem.lookupSourceTypes(target.getTypeMirror());
List<TypeMirror> sourceTypes = resolveOptimizedImplicitSourceTypes(execution, target.getTypeMirror());
TypeGuard typeGuard = new TypeGuard(target.getTypeMirror(), execution.getIndex());
boolean throwsUnexpected = false;
boolean elseIf = false;
for (TypeMirror sourceType : sourceTypes) {
ExecutableTypeData executableType = resolveTargetExecutable(execution, sourceType);
elseIf = builder.startIf(elseIf);
throwsUnexpected |= executableType.hasUnexpectedValue(context);
builder.startGroup();
builder.tree(state.createContainsOnly(frameState, originalSourceTypes.indexOf(sourceType), 1, new Object[] { typeGuard }, new Object[] { typeGuard }));
builder.string(" && ");
builder.tree(state.createIsNotAny(frameState, reachableSpecializationsArray));
builder.end();
builder.end();
builder.startBlock();
CodeTree value = callChildExecuteMethod(execution, executableType, frameState);
value = expect(executableType.getReturnType(), sourceType, value);
throwsUnexpected |= needsCastTo(executableType.getReturnType(), sourceType);
ImplicitCastData cast = typeSystem.lookupCast(sourceType, target.getTypeMirror());
if (cast != null) {
// we need to store the original value to restore it in
// case of a deopt
String localName = createSourceTypeLocalName(target, sourceType);
builder.startStatement().string(localName).string(" = ").tree(value).end();
value = callMethod(null, cast.getMethod(), CodeTreeBuilder.singleString(localName));
}
builder.startStatement().string(target.getName()).string(" = ").tree(value).end();
builder.end();
}
if (elseIf) {
builder.startElseBlock();
}
LocalVariable genericValue = target.makeGeneric(context).nextName();
builder.tree(createAssignExecuteChild(originalFrameState, frameState, builder, execution, node.getGenericExecutableType(null), genericValue));
builder.startStatement().string(target.getName()).string(" = ");
CodeTree implicitState = state.createExtractInteger(frameState, typeGuard);
builder.tree(TypeSystemCodeGenerator.implicitExpectFlat(typeSystem, target.getTypeMirror(), genericValue.createReference(), implicitState));
builder.end();
if (!sourceTypes.isEmpty()) {
builder.end();
}
return new ChildExecutionResult(builder.build(), throwsUnexpected);
}
use of com.oracle.truffle.dsl.processor.java.model.CodeTree in project graal by oracle.
the class FlatNodeGenFactory method createAssumptionSlowPathTriples.
private List<IfTriple> createAssumptionSlowPathTriples(FrameState frameState, SpecializationGroup group, AssumptionExpression assumption) throws AssertionError {
List<IfTriple> triples = new ArrayList<>();
LocalVariable var = frameState.get(assumption.getId());
CodeTree declaration = null;
if (var == null) {
triples.addAll(initializeCaches(frameState, group, group.getSpecialization().getBoundCaches(assumption.getExpression()), NodeExecutionMode.SLOW_PATH, true, false));
CodeTree assumptionExpressions = DSLExpressionGenerator.write(assumption.getExpression(), null, castBoundTypes(bindExpressionValues(frameState, assumption.getExpression(), group.getSpecialization())));
String name = createAssumptionFieldName(group.getSpecialization(), assumption);
var = new LocalVariable(assumption.getExpression().getResolvedType(), name.substring(0, name.length() - 1), null);
frameState.set(assumption.getId(), var);
declaration = var.createDeclaration(assumptionExpressions);
}
triples.add(new IfTriple(declaration, createAssumptionGuard(assumption, var.createReference()), null));
return triples;
}
use of com.oracle.truffle.dsl.processor.java.model.CodeTree in project graal by oracle.
the class FlatNodeGenFactory method bindExpressionValues.
private Map<Variable, LocalVariable> bindExpressionValues(FrameState frameState, DSLExpression expression, SpecializationData specialization) throws AssertionError {
Map<Variable, LocalVariable> bindings = new HashMap<>();
Set<Variable> boundVariables = expression.findBoundVariables();
if (specialization == null && !boundVariables.isEmpty()) {
throw new AssertionError("Cannot bind guard variable in non-specialization group. yet.");
}
// resolve bindings for local context
for (Variable variable : boundVariables) {
Parameter resolvedParameter = specialization.findByVariable(variable.getResolvedVariable());
if (resolvedParameter != null) {
LocalVariable localVariable;
if (resolvedParameter.getSpecification().isCached()) {
// bind cached variable
String cachedMemberName = createFieldName(specialization, resolvedParameter);
localVariable = frameState.get(cachedMemberName);
CodeTree ref;
if (localVariable == null) {
ref = createCacheReference(frameState, specialization, resolvedParameter);
} else {
ref = localVariable.createReference();
}
bindings.put(variable, new LocalVariable(resolvedParameter.getType(), cachedMemberName, ref));
} else {
// bind local variable
if (resolvedParameter.getSpecification().isSignature()) {
NodeExecutionData execution = resolvedParameter.getSpecification().getExecution();
localVariable = frameState.getValue(execution);
} else {
localVariable = frameState.get(resolvedParameter.getLocalName());
}
if (localVariable != null) {
bindings.put(variable, localVariable);
}
}
}
}
return bindings;
}
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