mirror of https://github.com/Ryujinx/Ryujinx.git
48 lines
1.5 KiB
C#
48 lines
1.5 KiB
C#
using ARMeilleure.IntermediateRepresentation;
|
|
|
|
using static ARMeilleure.IntermediateRepresentation.Operand.Factory;
|
|
using static ARMeilleure.IntermediateRepresentation.Operation.Factory;
|
|
|
|
namespace ARMeilleure.Translation
|
|
{
|
|
static partial class Ssa
|
|
{
|
|
public static void Deconstruct(ControlFlowGraph cfg)
|
|
{
|
|
for (BasicBlock block = cfg.Blocks.First; block != null; block = block.ListNext)
|
|
{
|
|
Operation operation = block.Operations.First;
|
|
|
|
while (operation != default && operation.Instruction == Instruction.Phi)
|
|
{
|
|
Operation nextNode = operation.ListNext;
|
|
|
|
Operand local = Local(operation.Destination.Type);
|
|
|
|
PhiOperation phi = operation.AsPhi();
|
|
|
|
for (int index = 0; index < phi.SourcesCount; index++)
|
|
{
|
|
BasicBlock predecessor = phi.GetBlock(cfg, index);
|
|
|
|
Operand source = phi.GetSource(index);
|
|
|
|
predecessor.Append(Operation(Instruction.Copy, local, source));
|
|
|
|
phi.SetSource(index, default);
|
|
}
|
|
|
|
Operation copyOp = Operation(Instruction.Copy, operation.Destination, local);
|
|
|
|
block.Operations.AddBefore(operation, copyOp);
|
|
|
|
operation.Destination = default;
|
|
|
|
block.Operations.Remove(operation);
|
|
|
|
operation = nextNode;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
} |