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Implement speculative translation on the CPU (#515)

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* Implement speculative translation on the cpu, and change the way how branches to unknown or untranslated addresses works

* Port t0opt changes and other cleanups

* Change namespace from translation related classes to ChocolArm64.Translation, other minor tweaks

* Fix typo

* Translate higher quality code for indirect jumps aswell, and on some cases that were missed when lower quality (tier 0) code was available

* Remove debug print

* Remove direct argument passing optimization, and enable tail calls for BR instructions

* Call delegates directly with Callvirt rather than calling Execute, do not emit calls for tier 0 code

* Remove unused property

* Rename argument on ArmSubroutine delegate
This commit is contained in:
gdkchan 2019-02-04 18:26:05 -03:00 • committed by GitHub
parent f5b4f6ccc4
commit a694420d11
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21 changed files with 656 additions and 376 deletions
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54
ChocolArm64/Translation/ILMethodBuilder.cs
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@ -26,74 +26,32 @@ namespace ChocolArm64.Translation
_subName = subName;
}
public TranslatedSub GetSubroutine()
public TranslatedSub GetSubroutine(TranslationTier tier)
{
LocalAlloc = new LocalAlloc(_ilBlocks, _ilBlocks[0]);
List<Register> subArgs = new List<Register>();
void SetArgs(long inputs, RegisterType baseType)
{
for (int bit = 0; bit < 64; bit++)
{
long mask = 1L << bit;
if ((inputs & mask) != 0)
{
subArgs.Add(GetRegFromBit(bit, baseType));
}
}
}
SetArgs(LocalAlloc.GetIntInputs(_ilBlocks[0]), RegisterType.Int);
SetArgs(LocalAlloc.GetVecInputs(_ilBlocks[0]), RegisterType.Vector);
DynamicMethod method = new DynamicMethod(_subName, typeof(long), GetArgumentTypes(subArgs));
DynamicMethod method = new DynamicMethod(_subName, typeof(long), TranslatedSub.FixedArgTypes);
Generator = method.GetILGenerator();
TranslatedSub subroutine = new TranslatedSub(method, subArgs);
int argsStart = TranslatedSub.FixedArgTypes.Length;
TranslatedSub subroutine = new TranslatedSub(method, tier);
_locals = new Dictionary<Register, int>();
_localsCount = 0;
for (int index = 0; index < subroutine.SubArgs.Count; index++)
{
Register reg = subroutine.SubArgs[index];
Generator.EmitLdarg(index + argsStart);
Generator.EmitStloc(GetLocalIndex(reg));
}
new ILOpCodeLoadState(_ilBlocks[0]).Emit(this);
foreach (ILBlock ilBlock in _ilBlocks)
{
ilBlock.Emit(this);
}
subroutine.PrepareMethod();
return subroutine;
}
private Type[] GetArgumentTypes(IList<Register> Params)
{
Type[] fixedArgs = TranslatedSub.FixedArgTypes;
Type[] output = new Type[Params.Count + fixedArgs.Length];
fixedArgs.CopyTo(output, 0);
int typeIdx = fixedArgs.Length;
for (int index = 0; index < Params.Count; index++)
{
output[typeIdx++] = GetFieldType(Params[index].Type);
}
return output;
}
public int GetLocalIndex(Register reg)
{
if (!_locals.TryGetValue(reg, out int index))