diff options
| author | TSR Berry <20988865+TSRBerry@users.noreply.github.com> | 2023-04-08 01:22:00 +0200 |
|---|---|---|
| committer | Mary <thog@protonmail.com> | 2023-04-27 23:51:14 +0200 |
| commit | cee712105850ac3385cd0091a923438167433f9f (patch) | |
| tree | 4a5274b21d8b7f938c0d0ce18736d3f2993b11b1 /src/ARMeilleure/Translation/RegisterToLocal.cs | |
| parent | cd124bda587ef09668a971fa1cac1c3f0cfc9f21 (diff) | |
Move solution and projects to src
Diffstat (limited to 'src/ARMeilleure/Translation/RegisterToLocal.cs')
| -rw-r--r-- | src/ARMeilleure/Translation/RegisterToLocal.cs | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/src/ARMeilleure/Translation/RegisterToLocal.cs b/src/ARMeilleure/Translation/RegisterToLocal.cs new file mode 100644 index 00000000..abb9b373 --- /dev/null +++ b/src/ARMeilleure/Translation/RegisterToLocal.cs @@ -0,0 +1,52 @@ +using ARMeilleure.IntermediateRepresentation; +using System.Collections.Generic; + +using static ARMeilleure.IntermediateRepresentation.Operand.Factory; + +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 (Operation node = block.Operations.First; node != default; node = node.ListNext) + { + Operand dest = node.Destination; + + if (dest != default && 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)); + } + } + } + } + } + } +}
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