private TranslatedSub TranslateTier0(CpuThreadState state, MemoryManager memory, long position)
{
Block block = Decoder.DecodeBasicBlock(state, memory, position);
Block[] graph = new Block[] { block };
string subName = GetSubroutineName(position);
ILEmitterCtx context = new ILEmitterCtx(_cache, graph, block, subName);
do
{
context.EmitOpCode();
}while (context.AdvanceOpCode());
TranslatedSub subroutine = context.GetSubroutine();
subroutine.SetType(TranslatedSubType.SubTier0);
_cache.AddOrUpdate(position, subroutine, block.OpCodes.Count);
OpCode64 lastOp = block.GetLastOp();
return(subroutine);
}
private void TranslateTier1(CpuThreadState state, MemoryManager memory, long position)
{
(Block[] graph, Block root) = Decoder.DecodeSubroutine(_cache, state, memory, position);
string subName = GetSubroutineName(position);
ILEmitterCtx context = new ILEmitterCtx(_cache, graph, root, subName);
if (context.CurrBlock.Position != position)
{
context.Emit(OpCodes.Br, context.GetLabel(position));
}
do
{
context.EmitOpCode();
}while (context.AdvanceOpCode());
//Mark all methods that calls this method for ReJiting,
//since we can now call it directly which is faster.
if (_cache.TryGetSubroutine(position, out TranslatedSub oldSub))
{
foreach (long callerPos in oldSub.GetCallerPositions())
{
if (_cache.TryGetSubroutine(position, out TranslatedSub callerSub))
{
callerSub.MarkForReJit();
}
}
}
TranslatedSub subroutine = context.GetSubroutine();
subroutine.SetType(TranslatedSubType.SubTier1);
_cache.AddOrUpdate(position, subroutine, GetGraphInstCount(graph));
}