Ryujinx/ARMeilleure/Translation/RegisterToLocal.cs
gdkchan e5f78fb1d4
Replace LinkedList by IntrusiveList to avoid allocations on JIT (#931)
* Replace LinkedList by IntrusiveList to avoid allocations on JIT

* Fix wrong replacements
2020-02-17 22:30:54 +01:00

52 lines
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1.6 KiB
C#

using ARMeilleure.IntermediateRepresentation;
using System.Collections.Generic;
using static ARMeilleure.IntermediateRepresentation.OperandHelper;
namespace ARMeilleure.Translation
{
static class RegisterToLocal
{
public static void Rename(ControlFlowGraph cfg)
{
Dictionary<Register, Operand> registerToLocalMap = new Dictionary<Register, Operand>();
Operand GetLocal(Operand op)
{
Register register = op.GetRegister();
if (!registerToLocalMap.TryGetValue(register, out Operand local))
{
local = Local(op.Type);
registerToLocalMap.Add(register, local);
}
return local;
}
for (BasicBlock block = cfg.Blocks.First; block != null; block = block.ListNext)
{
for (Node node = block.Operations.First; node != null; node = node.ListNext)
{
Operand dest = node.Destination;
if (dest != null && dest.Kind == OperandKind.Register)
{
node.Destination = GetLocal(dest);
}
for (int index = 0; index < node.SourcesCount; index++)
{
Operand source = node.GetSource(index);
if (source.Kind == OperandKind.Register)
{
node.SetSource(index, GetLocal(source));
}
}
}
}
}
}
}