public override void OptimizeOperations(CilMethodInterpreter interpreter)
{
var midRepresentation = interpreter.MidRepresentation;
var useDef = midRepresentation.UseDef;
var loopStarts = LoopDetection.FindLoops(midRepresentation);
foreach (var loopStart in loopStarts)
{
var loopEnd = LoopDetection.GetEndLoop(useDef.GetLocalOperations(), loopStart);
var allDefinedVariables = GetAllDefinedVariables(midRepresentation, loopStart, loopEnd);
var allInvariantInstructions = GetAllInvariantInstructions(midRepresentation, loopStart, loopEnd,
allDefinedVariables);
if (allInvariantInstructions.Count == 0)
{
continue;
}
PerformMoveInstructions(midRepresentation, loopStart, allInvariantInstructions);
Result = true;
return;
}
}
public override bool CheckPreconditions(CilMethodInterpreter midRepresentation, ClosureEntities closure)
{
var loopStarts = LoopDetection.FindLoops(midRepresentation.MidRepresentation);
return(loopStarts.Count != 0);
}