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Optimize native code XY index register usage

This commit is contained in:
drmortalwombat 2021-10-30 22:29:32 +02:00
parent 640477f88d
commit b9cbf525e9
5 changed files with 729 additions and 166 deletions
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53
oscar64/InterCode.cpp
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@ -314,6 +314,42 @@ static void ConversionConstantFold(InterInstruction * ins, InterInstruction * ci
}
}
static void LoadConstantFold(InterInstruction* ins, InterInstruction* ains)
{
const uint8* data;
if (ains)
data = ains->mConst.mLinkerObject->mData + ains->mConst.mIntConst;
else
data = ins->mSrc[0].mLinkerObject->mData + ins->mSrc[0].mIntConst;
switch (ins->mDst.mType)
{
case IT_BOOL:
ins->mConst.mIntConst = data[0] ? 1 : 0;
case IT_INT8:
ins->mConst.mIntConst = data[0];
break;
case IT_INT16:
case IT_POINTER:
ins->mConst.mIntConst = data[0] | (data[1] << 8);
break;
case IT_INT32:
ins->mConst.mIntConst = data[0] | (data[1] << 8) | (data[2] << 16) | (data[3] << 24);
break;
case IT_FLOAT:
{
union { float f; unsigned int v; } cc;
cc.v = data[0] | (data[1] << 8) | (data[2] << 16) | (data[3] << 24);
ins->mConst.mFloatConst = cc.v;
} break;
}
ins->mCode = IC_CONSTANT;
ins->mConst.mType = ins->mDst.mType;
ins->mSrc[0].mTemp = -1;
}
void ValueSet::InsertValue(InterInstruction * ins)
{
InterInstructionPtr* nins;
@ -556,6 +592,11 @@ void ValueSet::UpdateValue(InterInstruction * ins, const GrowingInstructionPtrAr
assert(ins->mSrc[0].mTemp >= 0);
}
}
else if (ins->mSrc[0].mTemp >= 0 && tvalue[ins->mSrc[0].mTemp] && tvalue[ins->mSrc[0].mTemp]->mCode == IC_CONSTANT && tvalue[ins->mSrc[0].mTemp]->mConst.mMemory == IM_GLOBAL && (tvalue[ins->mSrc[0].mTemp]->mConst.mLinkerObject->mFlags & LOBJF_CONST))
{
LoadConstantFold(ins, tvalue[ins->mSrc[0].mTemp]);
InsertValue(ins);
}
else
{
if (!ins->mVolatile)
@ -2100,6 +2141,10 @@ void InterCodeBasicBlock::CheckValueUsage(InterInstruction * ins, const GrowingI
case IC_LOAD:
OptimizeAddress(ins, tvalue, 0);
if (ins->mSrc[0].mTemp < 0 && ins->mSrc[0].mMemory == IM_GLOBAL && (ins->mSrc[0].mLinkerObject->mFlags & LOBJF_CONST))
LoadConstantFold(ins, nullptr);
break;
case IC_STORE:
if (ins->mSrc[0].mTemp >= 0 && tvalue[ins->mSrc[0].mTemp] && tvalue[ins->mSrc[0].mTemp]->mCode == IC_CONSTANT)
@ -2205,6 +2250,14 @@ void InterCodeBasicBlock::CheckValueUsage(InterInstruction * ins, const GrowingI
}
}
break;
case IC_CONVERSION_OPERATOR:
if (ins->mSrc[0].mTemp >= 0 && tvalue[ins->mSrc[0].mTemp] && tvalue[ins->mSrc[0].mTemp]->mCode == IC_CONSTANT)
{
ConversionConstantFold(ins, tvalue[ins->mSrc[0].mTemp]);
}
break;
case IC_RETURN_VALUE:
if (ins->mSrc[0].mTemp >= 0 && tvalue[ins->mSrc[0].mTemp] && tvalue[ins->mSrc[0].mTemp]->mCode == IC_CONSTANT)
{

6
oscar64/InterCodeGenerator.cpp
View File

@ -217,6 +217,12 @@ void InterCodeGenerator::InitGlobalVariable(InterCodeModule * mod, Declaration*
var->mLinkerObject = mLinker->AddObject(dec->mLocation, dec->mIdent, dec->mSection, LOT_DATA);
var->mIdent = dec->mIdent;
Declaration* type = dec->mBase;
while (type->mType == DT_TYPE_ARRAY)
type = type->mBase;
if (type->mFlags & DTF_CONST)
var->mLinkerObject->mFlags |= LOBJF_CONST;
var->mIndex = mod->mGlobalVars.Size();
mod->mGlobalVars.Push(var);

1
oscar64/Linker.h
View File

@ -80,6 +80,7 @@ static const uint32 LOBJF_REFERENCED = 0x00000001;
static const uint32 LOBJF_PLACED = 0x00000002;
static const uint32 LOBJF_NO_FRAME = 0x00000004;
static const uint32 LOBJF_INLINE = 0x00000008;
static const uint32 LOBJF_CONST = 0x00000010;
class LinkerObject
{

829
oscar64/NativeCodeGenerator.cpp
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File diff suppressed because it is too large Load Diff

6
oscar64/NativeCodeGenerator.h
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@ -175,7 +175,7 @@ public:
bool MoveLoadAddImmStoreUp(int at);
bool FindAddressSumY(int at, int reg, int & apos, int& breg, int& ireg);
bool FindGlobalAddress(int at, int reg, int& apos);
bool FindGlobalAddressSumY(int at, int reg, bool direct, int& apos, const NativeCodeInstruction * & ains, int& ireg);
bool FindGlobalAddressSumY(int at, int reg, bool direct, int& apos, const NativeCodeInstruction * & ains, const NativeCodeInstruction*& iins, uint32 & flags);
bool MoveStoreXUp(int at);
bool ValueForwarding(const NativeRegisterDataSet& data);
@ -192,6 +192,10 @@ public:
void CollectZeroPageUsage(NumberSet& used);
void RemapZeroPage(const uint8* remap);
void GlobalRegisterXYCheck(int* xregs, int * yregs);
void GlobalRegisterXMap(int reg);
bool LocalRegisterXYMap(void);
};
class NativeCodeProcedure