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Misc. CPU optimizations (#575)

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* Add optimizations related to caller/callee saved registers, thread synchronization and disable tier 0

* Refactoring

* Add a config entry to enable or disable the reg load/store opt.

* Remove unnecessary register state stores for calls when the callee is know

* Rename IoType to VarType

* Enable tier 0 while fixing some perf issues related to tier 0

* Small tweak -- Compile before adding to the cache, to avoid lags

* Add required config entry
This commit is contained in:
gdkchan 2019-02-27 23:03:31 -03:00 • committed by jduncanator
parent 884b4e5fd3
commit e21ebbf666
28 changed files with 456 additions and 280 deletions
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45
ChocolArm64/Translation/ILMethodBuilder.cs
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@ -8,7 +8,10 @@ namespace ChocolArm64.Translation
{
class ILMethodBuilder
{
public LocalAlloc LocalAlloc { get; private set; }
private const int RegsCount = 32;
private const int RegsMask = RegsCount - 1;
public RegisterUsage RegUsage { get; private set; }
public ILGenerator Generator { get; private set; }
@ -18,29 +21,47 @@ namespace ChocolArm64.Translation
private string _subName;
public bool IsAarch64 { get; }
public bool IsSubComplete { get; }
private int _localsCount;
public ILMethodBuilder(ILBlock[] ilBlocks, string subName)
public ILMethodBuilder(
ILBlock[] ilBlocks,
string subName,
bool isAarch64,
bool isSubComplete = false)
{
_ilBlocks = ilBlocks;
_subName = subName;
_ilBlocks = ilBlocks;
_subName = subName;
IsAarch64 = isAarch64;
IsSubComplete = isSubComplete;
}
public TranslatedSub GetSubroutine(TranslationTier tier)
public TranslatedSub GetSubroutine(TranslationTier tier, bool isWorthOptimizing)
{
LocalAlloc = new LocalAlloc(_ilBlocks, _ilBlocks[0]);
RegUsage = new RegisterUsage();
RegUsage.BuildUses(_ilBlocks[0]);
DynamicMethod method = new DynamicMethod(_subName, typeof(long), TranslatedSub.FixedArgTypes);
Generator = method.GetILGenerator();
long intNiRegsMask = RegUsage.GetIntNotInputs(_ilBlocks[0]);
long vecNiRegsMask = RegUsage.GetVecNotInputs(_ilBlocks[0]);
TranslatedSub subroutine = new TranslatedSub(method, tier);
TranslatedSub subroutine = new TranslatedSub(
method,
intNiRegsMask,
vecNiRegsMask,
tier,
isWorthOptimizing);
_locals = new Dictionary<Register, int>();
_localsCount = 0;
new ILOpCodeLoadState(_ilBlocks[0]).Emit(this);
Generator = method.GetILGenerator();
foreach (ILBlock ilBlock in _ilBlocks)
{
@ -80,13 +101,13 @@ namespace ChocolArm64.Translation
public static Register GetRegFromBit(int bit, RegisterType baseType)
{
if (bit < 32)
if (bit < RegsCount)
{
return new Register(bit, baseType);
}
else if (baseType == RegisterType.Int)
{
return new Register(bit & 0x1f, RegisterType.Flag);
return new Register(bit & RegsMask, RegisterType.Flag);
}
else
{
@ -96,7 +117,7 @@ namespace ChocolArm64.Translation
public static bool IsRegIndex(int index)
{
return (uint)index < 32;
return (uint)index < RegsCount;
}
}
}