public AsyncStateGroupData(
AsyncStateGroup asyncStateGroup,
ContextWrapper context,
LLVMValueRef function,
LLVMBasicBlockRef initialBasicBlock,
LLVMBasicBlockRef continueBasicBlock,
LLVMBasicBlockRef exitBasicBlock,
StateFieldValueSource fireCountStateField)
{
AsyncStateGroup = asyncStateGroup;
Context = context;
Function = function;
InitialBasicBlock = initialBasicBlock;
ContinueBasicBlock = continueBasicBlock;
ExitBasicBlock = exitBasicBlock;
FireCountStateField = fireCountStateField;
}
public void UnconditionalFrameWithNoInteriorAwaits_GroupAsyncStates_AllFrameAsyncStateGroupsInSameFunction()
{
DfirRoot function = DfirRoot.Create();
Frame frame = Frame.Create(function.BlockDiagram);
Tunnel inputTunnel = CreateInputTunnel(frame);
ConnectConstantToInputTerminal(inputTunnel.InputTerminals[0], NITypes.Int32, false);
var output = new FunctionalNode(frame.Diagram, Signatures.OutputType);
Wire.Create(frame.Diagram, inputTunnel.OutputTerminals[0], output.InputTerminals[0]);
IEnumerable <AsyncStateGroup> asyncStateGroups = GroupAsyncStates(function);
AsyncStateGroup firstGroup = asyncStateGroups.First();
var groupFunctionId = firstGroup.FunctionId;
Assert.IsTrue(asyncStateGroups.All(g => g.FunctionId == groupFunctionId));
}
public void LoopFollowedByLoop_GroupAsyncStates_SubsequentLoopStartsInPredecessorLoopTerminalGroup()
{
DfirRoot function = DfirRoot.Create();
Loop firstLoop = new Loop(function.BlockDiagram);
BorrowTunnel firstLoopBorrow = CreateBorrowTunnel(firstLoop, BorrowMode.Immutable);
ConnectConstantToInputTerminal(firstLoopBorrow.InputTerminals[0], NITypes.Int32, false);
TerminateLifetimeTunnel firstLoopTerminate = firstLoopBorrow.TerminateLifetimeTunnel;
Loop secondLoop = new Loop(function.BlockDiagram);
Tunnel loopTunnel = CreateInputTunnel(secondLoop);
Wire.Create(function.BlockDiagram, firstLoopTerminate.OutputTerminals[0], loopTunnel.InputTerminals[0]);
IEnumerable <AsyncStateGroup> asyncStateGroups = GroupAsyncStates(function);
string terminalGroupName = $"loop{firstLoop.UniqueId}_terminalGroup";
AsyncStateGroup firstLoopTerminalGroup = asyncStateGroups.First(g => g.Label == terminalGroupName);
AsyncStateGroup secondLoopInitialGroup = asyncStateGroups.First(g => g.GroupContainsStructureTraversalPoint(secondLoop, secondLoop.Diagram, StructureTraversalPoint.BeforeLeftBorderNodes));
Assert.AreEqual(firstLoopTerminalGroup, secondLoopInitialGroup);
}
public void FrameWithUnwrapOptionTunnelAndNoInteriorAwaits_GroupAsyncStates_AllFrameAsyncStateGroupsInSameFunction()
{
DfirRoot function = DfirRoot.Create();
Frame frame = Frame.Create(function.BlockDiagram);
UnwrapOptionTunnel unwrapTunnel = CreateUnwrapOptionTunnel(frame);
FunctionalNode someConstructor = ConnectSomeConstructorToInputTerminal(unwrapTunnel.InputTerminals[0]);
ConnectConstantToInputTerminal(someConstructor.InputTerminals[0], NITypes.Int32, false);
var output = new FunctionalNode(frame.Diagram, Signatures.OutputType);
Wire.Create(frame.Diagram, unwrapTunnel.OutputTerminals[0], output.InputTerminals[0]);
IEnumerable <AsyncStateGroup> asyncStateGroups = GroupAsyncStates(function);
AsyncStateGroup frameInitialGroup = asyncStateGroups.First(g => g.GroupContainsStructureTraversalPoint(frame, frame.Diagram, StructureTraversalPoint.BeforeLeftBorderNodes)),
frameDiagramInitialGroup = asyncStateGroups.First(g => g.GroupContainsNode(output)),
frameTerminalGroup = asyncStateGroups.First(g => g.GroupContainsStructureTraversalPoint(frame, frame.Diagram, StructureTraversalPoint.AfterRightBorderNodes));
Assert.AreEqual(frameInitialGroup.FunctionId, frameDiagramInitialGroup.FunctionId);
Assert.AreEqual(frameInitialGroup.FunctionId, frameTerminalGroup.FunctionId);
}
protected void CompileAsyncStateGroup(AsyncStateGroup asyncStateGroup, FunctionCompilerState compilerState)
{
FunctionCompilerState previousState = CurrentState;
CurrentGroup = asyncStateGroup;
CurrentState = compilerState;
AsyncStateGroupData groupData = AsyncStateGroups[asyncStateGroup];
LLVMValueRef groupFunction = groupData.Function;
Builder.PositionBuilderAtEnd(groupData.InitialBasicBlock);
// Here we are assuming that the group whose label matches the function name is also the entry group.
if (asyncStateGroup.FunctionId == asyncStateGroup.Label && this is AsynchronousFunctionModuleBuilder)
{
AllocationSet.InitializeFunctionLocalAllocations(asyncStateGroup.FunctionId, Builder);
}
var conditionalContinuation = asyncStateGroup.Continuation as ConditionallyScheduleGroupsContinuation;
if (conditionalContinuation != null)
{
var continuationConditionValueSource = (IInitializableValueSource)SharedData.VariableStorage.GetValueSourceForVariable(asyncStateGroup.ContinuationCondition);
LLVMValueRef initialConditionValue = LLVMSharp.LLVM.ConstNull(SharedData.Context.AsLLVMType(asyncStateGroup.ContinuationCondition.Type));
continuationConditionValueSource.InitializeValue(Builder, initialConditionValue);
}
if (asyncStateGroup.IsSkippable)
{
if (asyncStateGroup.FunctionId == asyncStateGroup.Label && this is SynchronousFunctionModuleBuilder)
{
_localDoneAllocationPtr = Builder.CreateAlloca(FunctionAllocationSet.FunctionCompletionStatusType(SharedData.Context), "donePtr");
Builder.CreateBr(groupData.ContinueBasicBlock);
}
else
{
LLVMValueRef shouldContinue = GenerateContinueStateCheck();
Builder.CreateCondBr(shouldContinue, groupData.ContinueBasicBlock, groupData.ExitBasicBlock);
}
Builder.PositionBuilderAtEnd(groupData.ContinueBasicBlock);
}
groupData.CreateFireCountReset(Builder);
foreach (Visitation visitation in asyncStateGroup.Visitations)
{
visitation.Visit <bool>(SharedData.VisitationHandler);
}
var unconditionalContinuation = asyncStateGroup.Continuation as UnconditionallySchduleGroupsContinuation;
if (unconditionalContinuation != null &&
!unconditionalContinuation.UnconditionalSuccessors.Any() &&
this is AsynchronousFunctionModuleBuilder)
{
GenerateStoreCompletionState(RuntimeConstants.FunctionCompletedNormallyStatus);
}
if (asyncStateGroup.IsSkippable)
{
Builder.CreateBr(groupData.ExitBasicBlock);
Builder.PositionBuilderAtEnd(groupData.ExitBasicBlock);
}
bool returnAfterGroup = true;
if (unconditionalContinuation != null)
{
if (unconditionalContinuation.UnconditionalSuccessors.Any())
{
AsyncStateGroup singleSuccessor;
if (unconditionalContinuation.UnconditionalSuccessors.TryGetSingleElement(out singleSuccessor) && singleSuccessor.FunctionId == asyncStateGroup.FunctionId)
{
Builder.CreateBr(AsyncStateGroups[singleSuccessor].InitialBasicBlock);
returnAfterGroup = false;
}
else
{
CreateInvokeOrScheduleOfSuccessors(unconditionalContinuation.UnconditionalSuccessors);
}
}
else if (this is AsynchronousFunctionModuleBuilder)
{
GenerateFunctionTerminator();
}
}
if (conditionalContinuation != null)
{
LLVMValueRef condition = SharedData.VariableStorage.GetValueSourceForVariable(asyncStateGroup.ContinuationCondition).GetValue(Builder);
bool isBooleanCondition = conditionalContinuation.SuccessorConditionGroups.Count == 2;
bool allSynchronousContinuations = conditionalContinuation.SuccessorConditionGroups.All(group =>
{
AsyncStateGroup singleSuccessor;
return(group.TryGetSingleElement(out singleSuccessor) && singleSuccessor.FunctionId == asyncStateGroup.FunctionId);
});
if (allSynchronousContinuations)
{
LLVMBasicBlockRef[] initialBlocks = conditionalContinuation.SuccessorConditionGroups
.Select(g => AsyncStateGroups[g.First()].InitialBasicBlock)
.ToArray();
if (isBooleanCondition)
{
Builder.CreateCondBr(condition, initialBlocks[1], initialBlocks[0]);
}
else
{
LLVMValueRef conditionSwitch = Builder.CreateSwitch(condition, initialBlocks[0], (uint)(initialBlocks.Length - 1));
for (int i = 1; i < initialBlocks.Length; ++i)
{
conditionSwitch.AddCase(SharedData.Context.AsLLVMValue((byte)i), initialBlocks[i]);
}
}
returnAfterGroup = false;
}
else
{
LLVMBasicBlockRef[] continuationConditionBlocks = Enumerable.Range(0, conditionalContinuation.SuccessorConditionGroups.Count)
.Select(i => groupFunction.AppendBasicBlock($"continuationCondition{i}"))
.ToArray();
LLVMBasicBlockRef exitBlock = groupFunction.AppendBasicBlock("exit");
if (isBooleanCondition)
{
Builder.CreateCondBr(condition, continuationConditionBlocks[1], continuationConditionBlocks[0]);
}
else
{
LLVMValueRef conditionSwitch = Builder.CreateSwitch(condition, continuationConditionBlocks[0], (uint)(conditionalContinuation.SuccessorConditionGroups.Count - 1));
for (int i = 1; i < continuationConditionBlocks.Length; ++i)
{
conditionSwitch.AddCase(SharedData.Context.AsLLVMValue((byte)i), continuationConditionBlocks[i]);
}
}
for (int i = 0; i < continuationConditionBlocks.Length; ++i)
{
Builder.PositionBuilderAtEnd(continuationConditionBlocks[i]);
CreateInvokeOrScheduleOfSuccessors(conditionalContinuation.SuccessorConditionGroups[i]);
Builder.CreateBr(exitBlock);
}
Builder.PositionBuilderAtEnd(exitBlock);
}
}
if (returnAfterGroup)
{
Builder.CreateRetVoid();
}
CurrentGroup = null;
CurrentState = previousState;
}