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JIT: Coalesce copies on LSRA with simple register preferencing (#6950)

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* JIT: Coalesce copies on LSRA with simple register preferencing

* PPTC version bump
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gdkchan 2024-06-19 09:39:29 -03:00 • committed by GitHub
parent d25a084858
commit 0afa8f2c14
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3 changed files with 56 additions and 6 deletions
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21
src/ARMeilleure/CodeGen/RegisterAllocators/LiveInterval.cs
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@ -19,6 +19,7 @@ namespace ARMeilleure.CodeGen.RegisterAllocators
public LiveRange CurrRange;
public LiveInterval Parent;
public LiveInterval CopySource;
public UseList Uses;
public LiveIntervalList Children;
@ -37,6 +38,7 @@ namespace ARMeilleure.CodeGen.RegisterAllocators
private ref LiveRange CurrRange => ref _data->CurrRange;
private ref LiveRange PrevRange => ref _data->PrevRange;
private ref LiveInterval Parent => ref _data->Parent;
private ref LiveInterval CopySource => ref _data->CopySource;
private ref UseList Uses => ref _data->Uses;
private ref LiveIntervalList Children => ref _data->Children;
@ -78,6 +80,25 @@ namespace ARMeilleure.CodeGen.RegisterAllocators
Register = register;
}
public void SetCopySource(LiveInterval copySource)
{
CopySource = copySource;
}
public bool TryGetCopySourceRegister(out int copySourceRegIndex)
{
if (CopySource._data != null)
{
copySourceRegIndex = CopySource.Register.Index;
return true;
}
copySourceRegIndex = 0;
return false;
}
public void Reset()
{
PrevRange = default;