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Fix zero page parameter aliasing

This commit is contained in:
drmortalwombat 2024-09-23 21:27:27 +02:00
parent 21b5e75ddb
commit b1440a9b3f
5 changed files with 158 additions and 30 deletions
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38
oscar64/InterCode.cpp
View File

@ -3889,6 +3889,7 @@ InterInstruction::InterInstruction(const Location& loc, InterCode code)
mSingleAssignment = false;
mNoSideEffects = false;
mConstExpr = false;
mAliasing = false;
}
static bool TypeInteger(InterType t)
@ -5756,6 +5757,8 @@ void InterInstruction::Disassemble(FILE* file, InterCodeProcedure* proc)
fprintf(file, "C");
if (mSingleAssignment)
fprintf(file, "S");
if (mAliasing)
fprintf(file, "A");
fprintf(file, "}\n");
}
}
@ -20901,6 +20904,34 @@ void InterCodeBasicBlock::CheckValueReturn(void)
}
}
void InterCodeBasicBlock::MarkAliasing(const NumberSet& aliasedParams)
{
if (!mVisited)
{
mVisited = true;
for (int i = 0; i < mInstructions.Size(); i++)
{
InterInstruction* ins = mInstructions[i];
if (ins->mCode == IC_LOAD || ins->mCode == IC_COPY)
{
if ((ins->mSrc[0].mMemory == IM_PARAM || ins->mSrc[0].mMemory == IM_FPARAM) && aliasedParams[ins->mSrc[0].mVarIndex])
ins->mAliasing = true;
}
if (ins->mCode == IC_STORE || ins->mCode == IC_FILL || ins->mCode == IC_COPY)
{
if ((ins->mSrc[1].mMemory == IM_PARAM || ins->mSrc[1].mMemory == IM_FPARAM) && aliasedParams[ins->mSrc[1].mVarIndex])
ins->mAliasing = true;
}
}
if (mTrueJump) mTrueJump->MarkAliasing(aliasedParams);
if (mFalseJump) mFalseJump->MarkAliasing(aliasedParams);
}
}
void InterCodeBasicBlock::CollectGlobalReferences(NumberSet& referencedGlobals, NumberSet& modifiedGlobals, bool& storesIndirect, bool& loadsIndirect, bool& globalsChecked)
{
if (!mVisited)
@ -22454,7 +22485,7 @@ void InterCodeProcedure::Close(void)
{
GrowingTypeArray tstack(IT_NONE);
CheckFunc = !strcmp(mIdent->mString, "main");
CheckFunc = !strcmp(mIdent->mString, "testD");
CheckCase = false;
mEntryBlock = mBlocks[0];
@ -23537,6 +23568,11 @@ void InterCodeProcedure::Close(void)
#endif
ResetVisited();
mEntryBlock->CollectGlobalReferences(mReferencedGlobals, mModifiedGlobals, mStoresIndirect, mLoadsIndirect, mGlobalsChecked);
ResetVisited();
mEntryBlock->MarkAliasing(mParamAliasedSet);
DisassembleDebug("Marked Aliasing");
}
void InterCodeProcedure::AddCalledFunction(InterCodeProcedure* proc)

3
oscar64/InterCode.h
View File

@ -317,7 +317,7 @@ public:
InterOperator mOperator;
int mNumOperands;
bool mInUse, mInvariant, mVolatile, mExpensive, mSingleAssignment, mNoSideEffects, mConstExpr, mRemove;
bool mInUse, mInvariant, mVolatile, mExpensive, mSingleAssignment, mNoSideEffects, mConstExpr, mRemove, mAliasing;
InterInstruction(const Location& loc, InterCode code);
@ -671,6 +671,7 @@ public:
void CollectGlobalReferences(NumberSet& referencedGlobals, NumberSet& modifiedGlobals, bool & storesIndirect, bool & loadsIndirect, bool & globalsChecked);
void MarkAliasing(const NumberSet& aliasedParams);
};
class InterCodeProcedure

142
oscar64/NativeCodeGenerator.cpp
View File

@ -36,6 +36,7 @@ NativeRegisterData::NativeRegisterData(void)
void NativeRegisterData::Reset(void)
{
mFlags = 0;
mMode = NRDM_UNKNOWN;
mValue = GlobalValueNumber++;
}
@ -45,6 +46,13 @@ void NativeRegisterData::ResetMask(void)
mMask = 0;
}
void NativeRegisterData::ResetAliasing(void)
{
if (mFlags & NCIF_ALIASING)
Reset();
}
bool NativeRegisterData::SameData(const NativeCodeInstruction& ins) const
{
if (ins.mMode == ASMIM_ZERO_PAGE)
@ -139,6 +147,8 @@ void NativeRegisterDataSet::ResetCall(const NativeCodeInstruction& ins, int fast
if (!(ins.mFlags & NCIF_RUNTIME) || (ins.mFlags & NCIF_FEXEC))
{
ResetAliasing();
if (ins.mLinkerObject && ins.mLinkerObject->mProc)
{
for (int i = BC_REG_TMP; i < BC_REG_TMP + ins.mLinkerObject->mProc->mCallerSavedTemps; i++)
@ -175,6 +185,12 @@ void NativeRegisterDataSet::ResetWorkRegs(void)
ResetZeroPageRange(BC_REG_WORK, 8);
}
void NativeRegisterDataSet::ResetAliasing(void)
{
for (int i = 0; i < NUM_REGS; i++)
mRegs[i].ResetAliasing();
}
void NativeRegisterDataSet::ResetWorkMasks(void)
{
mRegs[BC_REG_WORK_Y].ResetMask();
@ -3867,6 +3883,7 @@ bool NativeCodeInstruction::ValueForwarding(NativeRegisterDataSet& data, AsmInsT
{
data.mRegs[CPU_REG_A].mMode = NRDM_ZERO_PAGE;
data.mRegs[CPU_REG_A].mValue = mAddress;
data.mRegs[CPU_REG_A].mFlags = mFlags;
}
}
break;
@ -4058,6 +4075,7 @@ bool NativeCodeInstruction::ValueForwarding(NativeRegisterDataSet& data, AsmInsT
{
data.mRegs[data.mRegs[CPU_REG_A].mValue].mMode = NRDM_ZERO_PAGE;
data.mRegs[data.mRegs[CPU_REG_A].mValue].mValue = mAddress;
data.mRegs[data.mRegs[CPU_REG_A].mValue].mFlags = mFlags;
data.mRegs[mAddress].Reset();
}
else
@ -4065,6 +4083,7 @@ bool NativeCodeInstruction::ValueForwarding(NativeRegisterDataSet& data, AsmInsT
{
data.mRegs[mAddress].mMode = NRDM_ZERO_PAGE;
data.mRegs[mAddress].mValue = data.mRegs[CPU_REG_A].mValue;
data.mRegs[mAddress].mFlags = data.mRegs[CPU_REG_A].mFlags;
}
}
@ -5457,6 +5476,8 @@ void NativeCodeBasicBlock::StoreValue(InterCodeProcedure* proc, const InterInstr
uint32 flags = NCIF_LOWER | NCIF_UPPER;
if (ins->mVolatile)
flags |= NCIF_VOLATILE;
if (ins->mAliasing)
flags |= NCIF_ALIASING;
if (ins->mSrc[0].mType == IT_FLOAT)
{
@ -6338,6 +6359,8 @@ void NativeCodeBasicBlock::LoadByteIndexedValue(InterCodeProcedure* proc, const
uint32 flags = NCIF_LOWER | NCIF_UPPER;
if (rins->mVolatile)
flags |= NCIF_VOLATILE;
if (rins->mAliasing)
flags |= NCIF_ALIASING;
for (int i = 0; i < InterTypeSize[rins->mDst.mType]; i++)
{
@ -6367,6 +6390,8 @@ void NativeCodeBasicBlock::StoreByteIndexedValue(InterCodeProcedure* proc, const
uint32 flags = NCIF_LOWER | NCIF_UPPER;
if (wins->mVolatile)
flags |= NCIF_VOLATILE;
if (wins->mAliasing)
flags |= NCIF_ALIASING;
for (int i = 0; i < InterTypeSize[wins->mSrc[0].mType]; i++)
{
@ -6389,6 +6414,8 @@ void NativeCodeBasicBlock::LoadAbsoluteByteIndexedValue(InterCodeProcedure* proc
uint32 flags = NCIF_LOWER | NCIF_UPPER;
if (rins->mVolatile)
flags |= NCIF_VOLATILE;
if (rins->mAliasing)
flags |= NCIF_ALIASING;
for (int i = 0; i < InterTypeSize[rins->mDst.mType]; i++)
{
@ -6405,6 +6432,8 @@ void NativeCodeBasicBlock::StoreAbsoluteByteIndexedValue(InterCodeProcedure* pro
uint32 flags = NCIF_LOWER | NCIF_UPPER;
if (wins->mVolatile)
flags |= NCIF_VOLATILE;
if (wins->mAliasing)
flags |= NCIF_ALIASING;
for (int i = 0; i < InterTypeSize[wins->mSrc[0].mType]; i++)
{
@ -6427,6 +6456,8 @@ void NativeCodeBasicBlock::StoreByteOffsetIndexedValue(InterCodeProcedure* proc,
uint32 flags = NCIF_LOWER | NCIF_UPPER;
if (wins->mVolatile)
flags |= NCIF_VOLATILE;
if (wins->mAliasing)
flags |= NCIF_ALIASING;
for (int i = 0; i < InterTypeSize[wins->mSrc[0].mType]; i++)
{
@ -6449,12 +6480,16 @@ void NativeCodeBasicBlock::LoadStoreIndirectPair(InterCodeProcedure* proc, const
uint32 wflags0 = NCIF_LOWER | NCIF_UPPER;
if (wins0->mVolatile)
wflags0 |= NCIF_VOLATILE;
if (wins0->mAliasing)
wflags0 |= NCIF_ALIASING;
int ireg1 = BC_REG_TMP + proc->mTempOffset[wins1->mSrc[1].mTemp];
int index1 = int(wins1->mSrc[1].mIntConst);
uint32 wflags1 = NCIF_LOWER | NCIF_UPPER;
if (wins1->mVolatile)
wflags1 |= NCIF_VOLATILE;
if (wins1->mAliasing)
wflags1 |= NCIF_ALIASING;
CheckFrameIndex(wins0, ireg0, index0, 1, BC_REG_ADDR);
CheckFrameIndex(wins1, ireg1, index1, 1, BC_REG_ACCU);
@ -6481,6 +6516,8 @@ void NativeCodeBasicBlock::LoadStoreIndirectValue(InterCodeProcedure* proc, cons
uint32 rflags = NCIF_LOWER | NCIF_UPPER;
if (rins->mVolatile)
rflags |= NCIF_VOLATILE;
if (rins->mAliasing)
rflags |= NCIF_ALIASING;
switch (rins->mSrc[0].mMemory)
{
@ -6523,6 +6560,8 @@ void NativeCodeBasicBlock::LoadStoreIndirectValue(InterCodeProcedure* proc, cons
uint32 wflags = NCIF_LOWER | NCIF_UPPER;
if (wins->mVolatile)
wflags |= NCIF_VOLATILE;
if (wins->mAliasing)
wflags |= NCIF_ALIASING;
switch (wins->mSrc[1].mMemory)
{
@ -6593,10 +6632,14 @@ void NativeCodeBasicBlock::LoadStoreValue(InterCodeProcedure* proc, const InterI
uint32 rflags = NCIF_LOWER | NCIF_UPPER;
if (rins->mVolatile)
rflags |= NCIF_VOLATILE;
if (rins->mAliasing)
rflags |= NCIF_ALIASING;
uint32 wflags = NCIF_LOWER | NCIF_UPPER;
if (wins->mVolatile)
wflags |= NCIF_VOLATILE;
if (wins->mAliasing)
wflags |= NCIF_ALIASING;
if (rins->mDst.mType == IT_FLOAT)
@ -6901,10 +6944,15 @@ bool NativeCodeBasicBlock::LoadUnopStoreIndirectValue(InterCodeProcedure* proc,
uint32 rflags = NCIF_LOWER | NCIF_UPPER;
if (rins->mVolatile)
rflags |= NCIF_VOLATILE;
if (rins->mAliasing)
rflags |= NCIF_ALIASING;
uint32 wflags = NCIF_LOWER | NCIF_UPPER;
if (wins->mVolatile)
wflags |= NCIF_VOLATILE;
if (wins->mAliasing)
wflags |= NCIF_ALIASING;
for (int i = 0; i < size; i++)
@ -7040,10 +7088,14 @@ bool NativeCodeBasicBlock::LoadOpStoreIndirectValue(InterCodeProcedure* proc, co
uint32 rflags = NCIF_LOWER | NCIF_UPPER;
if (rins->mVolatile)
rflags |= NCIF_VOLATILE;
if (rins->mAliasing)
rflags |= NCIF_ALIASING;
uint32 wflags = NCIF_LOWER | NCIF_UPPER;
if (wins->mVolatile)
wflags |= NCIF_VOLATILE;
if (wins->mAliasing)
wflags |= NCIF_ALIASING;
if (ram == ASMIM_INDIRECT_Y && wam == ASMIM_INDIRECT_Y && rareg == wareg && rindex == windex)
{
@ -7128,6 +7180,8 @@ void NativeCodeBasicBlock::LoadValueToReg(InterCodeProcedure* proc, const InterI
uint32 flags = NCIF_LOWER | NCIF_UPPER;
if (ins->mVolatile)
flags |= NCIF_VOLATILE;
if (ins->mAliasing)
flags |= NCIF_ALIASING;
if (ins->mDst.mType == IT_FLOAT)
{
@ -7159,13 +7213,13 @@ void NativeCodeBasicBlock::LoadValueToReg(InterCodeProcedure* proc, const InterI
}
else if (ins->mSrc[0].mMemory == IM_FPARAM)
{
mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_FPARAMS + ins->mSrc[0].mVarIndex + ins->mSrc[0].mIntConst));
mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_FPARAMS + ins->mSrc[0].mVarIndex + ins->mSrc[0].mIntConst, nullptr, flags));
mIns.Push(NativeCodeInstruction(ins, ASMIT_STA, ASMIM_ZERO_PAGE, reg));
mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_FPARAMS + ins->mSrc[0].mVarIndex + ins->mSrc[0].mIntConst + 1));
mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_FPARAMS + ins->mSrc[0].mVarIndex + ins->mSrc[0].mIntConst + 1, nullptr, flags));
mIns.Push(NativeCodeInstruction(ins, ASMIT_STA, ASMIM_ZERO_PAGE, reg + 1));
mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_FPARAMS + ins->mSrc[0].mVarIndex + ins->mSrc[0].mIntConst + 2));
mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_FPARAMS + ins->mSrc[0].mVarIndex + ins->mSrc[0].mIntConst + 2, nullptr, flags));
mIns.Push(NativeCodeInstruction(ins, ASMIT_STA, ASMIM_ZERO_PAGE, reg + 2));
mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_FPARAMS + ins->mSrc[0].mVarIndex + ins->mSrc[0].mIntConst + 3));
mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_FPARAMS + ins->mSrc[0].mVarIndex + ins->mSrc[0].mIntConst + 3, nullptr, flags));
mIns.Push(NativeCodeInstruction(ins, ASMIT_STA, ASMIM_ZERO_PAGE, reg + 3));
}
else if (ins->mSrc[0].mMemory == IM_LOCAL || ins->mSrc[0].mMemory == IM_PARAM)
@ -7268,7 +7322,7 @@ void NativeCodeBasicBlock::LoadValueToReg(InterCodeProcedure* proc, const InterI
}
else if (ins->mSrc[0].mMemory == IM_FPARAM)
{
mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_FPARAMS + ins->mSrc[0].mVarIndex + ins->mSrc[0].mIntConst));
mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_FPARAMS + ins->mSrc[0].mVarIndex + ins->mSrc[0].mIntConst, nullptr, flags));
if (ainsl)
{
if (ainsl->mType == ASMIT_ADC)
@ -7278,7 +7332,7 @@ void NativeCodeBasicBlock::LoadValueToReg(InterCodeProcedure* proc, const InterI
mIns.Push(*ainsl);
}
mIns.Push(NativeCodeInstruction(ins, ASMIT_STA, ASMIM_ZERO_PAGE, reg));
mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_FPARAMS + ins->mSrc[0].mVarIndex + ins->mSrc[0].mIntConst + stride));
mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_FPARAMS + ins->mSrc[0].mVarIndex + ins->mSrc[0].mIntConst + stride, nullptr, flags));
if (ainsh) mIns.Push(*ainsh);
mIns.Push(NativeCodeInstruction(ins, ASMIT_STA, ASMIM_ZERO_PAGE, reg + 1));
}
@ -7362,7 +7416,7 @@ void NativeCodeBasicBlock::LoadValueToReg(InterCodeProcedure* proc, const InterI
}
else if (ins->mSrc[0].mMemory == IM_FPARAM)
{
mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_FPARAMS + ins->mSrc[0].mVarIndex + ins->mSrc[0].mIntConst));
mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_FPARAMS + ins->mSrc[0].mVarIndex + ins->mSrc[0].mIntConst, nullptr, flags));
}
else if (ins->mSrc[0].mMemory == IM_LOCAL || ins->mSrc[0].mMemory == IM_PARAM)
{
@ -7434,7 +7488,7 @@ void NativeCodeBasicBlock::LoadValueToReg(InterCodeProcedure* proc, const InterI
}
else if (ins->mSrc[0].mMemory == IM_FPARAM)
{
mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_FPARAMS + ins->mSrc[0].mVarIndex + ins->mSrc[0].mIntConst));
mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_FPARAMS + ins->mSrc[0].mVarIndex + ins->mSrc[0].mIntConst, nullptr, flags));
if (ainsl)
{
if (ainsl->mType == ASMIT_ADC)
@ -7444,7 +7498,7 @@ void NativeCodeBasicBlock::LoadValueToReg(InterCodeProcedure* proc, const InterI
mIns.Push(*ainsl);
}
mIns.Push(NativeCodeInstruction(ins, ASMIT_STA, ASMIM_ZERO_PAGE, reg));
mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_FPARAMS + ins->mSrc[0].mVarIndex + ins->mSrc[0].mIntConst + 1 * stride));
mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_FPARAMS + ins->mSrc[0].mVarIndex + ins->mSrc[0].mIntConst + 1 * stride, nullptr, flags));
if (ainsh) mIns.Push(*ainsh);
mIns.Push(NativeCodeInstruction(ins, ASMIT_STA, ASMIM_ZERO_PAGE, reg + 1));
}
@ -7504,13 +7558,13 @@ void NativeCodeBasicBlock::LoadValueToReg(InterCodeProcedure* proc, const InterI
}
else if (ins->mSrc[0].mMemory == IM_FPARAM)
{
mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_FPARAMS + ins->mSrc[0].mVarIndex + ins->mSrc[0].mIntConst));
mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_FPARAMS + ins->mSrc[0].mVarIndex + ins->mSrc[0].mIntConst, nullptr, flags));
mIns.Push(NativeCodeInstruction(ins, ASMIT_STA, ASMIM_ZERO_PAGE, reg));
mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_FPARAMS + ins->mSrc[0].mVarIndex + ins->mSrc[0].mIntConst + 1 * stride));
mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_FPARAMS + ins->mSrc[0].mVarIndex + ins->mSrc[0].mIntConst + 1 * stride, nullptr, flags));
mIns.Push(NativeCodeInstruction(ins, ASMIT_STA, ASMIM_ZERO_PAGE, reg + 1));
mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_FPARAMS + ins->mSrc[0].mVarIndex + ins->mSrc[0].mIntConst + 2 * stride));
mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_FPARAMS + ins->mSrc[0].mVarIndex + ins->mSrc[0].mIntConst + 2 * stride, nullptr, flags));
mIns.Push(NativeCodeInstruction(ins, ASMIT_STA, ASMIM_ZERO_PAGE, reg + 2));
mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_FPARAMS + ins->mSrc[0].mVarIndex + ins->mSrc[0].mIntConst + 3 * stride));
mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_FPARAMS + ins->mSrc[0].mVarIndex + ins->mSrc[0].mIntConst + 3 * stride, nullptr, flags));
mIns.Push(NativeCodeInstruction(ins, ASMIT_STA, ASMIM_ZERO_PAGE, reg + 3));
}
else if (ins->mSrc[0].mMemory == IM_LOCAL || ins->mSrc[0].mMemory == IM_PARAM)
@ -7628,6 +7682,8 @@ NativeCodeBasicBlock * NativeCodeBasicBlock::CopyValue(InterCodeProcedure* proc,
uint32 flags = NCIF_LOWER | NCIF_UPPER;
if (ins->mVolatile)
flags |= NCIF_VOLATILE;
if (ins->mAliasing)
flags |= NCIF_ALIASING;
if (sstride > 1 || dstride > 1)
msize = 32;
@ -8122,6 +8178,8 @@ NativeCodeBasicBlock* NativeCodeBasicBlock::FillValue(InterCodeProcedure* proc,
uint32 flags = NCIF_LOWER | NCIF_UPPER;
if (ins->mVolatile)
flags |= NCIF_VOLATILE;
if (ins->mAliasing)
flags |= NCIF_ALIASING;
if (dstride > 1)
msize = 32;
@ -14714,6 +14772,9 @@ void NativeCodeBasicBlock::FindZeroPageAlias(const NumberSet& statics, NumberSet
accu = -1;
else if (mIns[i].ChangesAddress())
invalid += mIns[i].mAddress;
if (mIns[i].mFlags & NCIF_ALIASING)
invalid += mIns[i].mAddress;
}
else if (mIns[i].mType == ASMIT_JSR && (mIns[i].mFlags & NCIF_USE_ZP_32_X))
{
@ -14831,7 +14892,7 @@ void NativeCodeBasicBlock::CollectZeroPageUsage(NumberSet& used, NumberSet &modi
{
case ASMIM_ZERO_PAGE:
used += mIns[i].mAddress;
if (mIns[i].ChangesAddress())
if (mIns[i].ChangesAddress() || (mIns[i].mFlags & NCIF_ALIASING))
modified += mIns[i].mAddress;
break;
case ASMIM_INDIRECT_Y:
@ -28946,7 +29007,7 @@ bool NativeCodeBasicBlock::CheckGlobalAddressSumYPointer(const NativeCodeBasicBl
{
NativeCodeInstruction& ins(mIns[at]);
if (at + 6 < mIns.Size() &&
if (index && at + 6 < mIns.Size() &&
mIns[at + 0].mType == ASMIT_CLC &&
mIns[at + 1].mType == ASMIT_LDA && mIns[at + 1].mMode == ASMIM_ZERO_PAGE && mIns[at + 1].mAddress == reg &&
mIns[at + 2].mMode == ASMIM_IMMEDIATE && (mIns[at + 2].mType == ASMIT_ADC || mIns[at + 2].mType == ASMIT_ORA && mIns[at + 2].mAddress == 0) &&
@ -28964,7 +29025,7 @@ bool NativeCodeBasicBlock::CheckGlobalAddressSumYPointer(const NativeCodeBasicBl
;
else if (ins.mMode == ASMIM_ZERO_PAGE)
{
if (ins.mAddress == index && ins.ChangesAddress())
if (index && ins.mAddress == index && ins.ChangesAddress())
return false;
else if (ins.mAddress == reg || ins.mAddress == reg + 1)
{
@ -28991,7 +29052,7 @@ bool NativeCodeBasicBlock::CheckGlobalAddressSumYPointer(const NativeCodeBasicBl
yval = (yval - 1) & 255;
else if (ins.mType == ASMIT_JSR || ins.mType == ASMIT_RTS)
{
if (ins.UsesZeroPage(reg) || ins.UsesZeroPage(reg + 1) || ins.ChangesZeroPage(index))
if (ins.UsesZeroPage(reg) || ins.UsesZeroPage(reg + 1) || (index && ins.ChangesZeroPage(index)))
return false;
yval = -1;
}
@ -29026,7 +29087,7 @@ bool NativeCodeBasicBlock::PatchGlobalAddressSumYPointer(const NativeCodeBasicBl
// assert(!(ins.mMode == ASMIM_ZERO_PAGE && (ins.mAddress == reg || ins.mAddress == reg + 1) && reg == index));
if (at + 6 < mIns.Size() &&
if (index && at + 6 < mIns.Size() &&
mIns[at + 0].mType == ASMIT_CLC &&
mIns[at + 1].mType == ASMIT_LDA && mIns[at + 1].mMode == ASMIM_ZERO_PAGE && mIns[at + 1].mAddress == reg &&
mIns[at + 2].mMode == ASMIM_IMMEDIATE && (mIns[at + 2].mType == ASMIT_ADC || mIns[at + 2].mType == ASMIT_ORA && mIns[at + 2].mAddress == 0) &&
@ -29076,20 +29137,28 @@ bool NativeCodeBasicBlock::PatchGlobalAddressSumYPointer(const NativeCodeBasicBl
const InterInstruction* iins = ins.mIns;
ins.mMode = ASMIM_ABSOLUTE_Y;
if (index)
ins.mMode = ASMIM_ABSOLUTE_Y;
else if (ins.mLinkerObject || address >= 256)
ins.mMode = ASMIM_ABSOLUTE;
else
ins.mMode = ASMIM_ZERO_PAGE;
ins.mLinkerObject = lobj;
ins.mAddress = address + yval;
ins.mFlags = (ins.mFlags & ~(NCIF_LOWER | NCIF_UPPER)) | flags;
if (ins.mLive & LIVE_CPU_REG_Y)
if (index)
{
mIns.Insert(at + 1, NativeCodeInstruction(iins, ASMIT_LDY, ASMIM_IMMEDIATE, yval));
if (ins.mLive & LIVE_CPU_REG_Z)
if (ins.mLive & LIVE_CPU_REG_Y)
{
mIns.Insert(at + 2, NativeCodeInstruction(iins, ASMIT_ORA, ASMIM_IMMEDIATE, 0));
ins.mLive |= LIVE_CPU_REG_A;
mIns.Insert(at + 1, NativeCodeInstruction(iins, ASMIT_LDY, ASMIM_IMMEDIATE, yval));
if (ins.mLive & LIVE_CPU_REG_Z)
{
mIns.Insert(at + 2, NativeCodeInstruction(iins, ASMIT_ORA, ASMIM_IMMEDIATE, 0));
ins.mLive |= LIVE_CPU_REG_A;
}
}
mIns.Insert(at, NativeCodeInstruction(iins, ASMIT_LDY, ASMIM_ZERO_PAGE, index));
}
mIns.Insert(at, NativeCodeInstruction(iins, ASMIT_LDY, ASMIM_ZERO_PAGE, index));
at++;
changed = true;
@ -29110,7 +29179,7 @@ bool NativeCodeBasicBlock::PatchGlobalAddressSumYPointer(const NativeCodeBasicBl
}
else if (ins.ChangesYReg())
yval = -1;
else if (at + 6 < mIns.Size() &&
else if (index && at + 6 < mIns.Size() &&
mIns[at + 0].mType == ASMIT_CLC &&
mIns[at + 1].mType == ASMIT_LDA && mIns[at + 1].mMode == ASMIM_ZERO_PAGE && mIns[at + 1].mAddress == reg + 0 &&
mIns[at + 2].mType == ASMIT_ADC && mIns[at + 2].mMode == ASMIM_IMMEDIATE &&
@ -49023,6 +49092,23 @@ bool NativeCodeBasicBlock::PeepHoleOptimizerIterate(int pass)
if (i + 5 < mIns.Size() && PeepHoleOptimizerIterate6(i, pass)) progress = true;
CheckLive();
#if 1
if (i + 3 < mIns.Size() && pass == 0 &&
mIns[i + 0].mType == ASMIT_LDA && mIns[i + 0].mMode == ASMIM_IMMEDIATE &&
mIns[i + 1].mType == ASMIT_STA && mIns[i + 1].mMode == ASMIM_ZERO_PAGE &&
mIns[i + 2].mType == ASMIT_LDA && mIns[i + 2].mMode == ASMIM_IMMEDIATE &&
mIns[i + 3].mType == ASMIT_STA && mIns[i + 3].mMode == ASMIM_ZERO_PAGE && mIns[i + 3].mAddress == mIns[i + 1].mAddress + 1 &&
!(mIns[i + 3].mLive & LIVE_CPU_REG_A))
{
mProc->ResetPatched();
if (CheckGlobalAddressSumYPointer(this, mIns[i + 1].mAddress, 0, i + 4, -1))
{
mProc->ResetPatched();
if (PatchGlobalAddressSumYPointer(this, mIns[i + 1].mAddress, 0, i + 4, -1, nullptr, 256 * mIns[i + 2].mAddress + mIns[i + 0].mAddress))
progress = true;
}
}
#endif
if (i + 2 < mIns.Size() && pass == 0 &&
mIns[i + 0].mType == ASMIT_STA && mIns[i + 0].mMode == ASMIM_ZERO_PAGE &&
mIns[i + 1].mType == ASMIT_LDA && mIns[i + 1].mMode == ASMIM_IMMEDIATE &&
@ -50857,7 +50943,7 @@ void NativeCodeProcedure::Compile(InterCodeProcedure* proc)
mInterProc = proc;
mInterProc->mLinkerObject->mNativeProc = this;
CheckFunc = !strcmp(mInterProc->mIdent->mString, "main");
CheckFunc = !strcmp(mInterProc->mIdent->mString, "a");
int nblocks = proc->mBlocks.Size();
tblocks = new NativeCodeBasicBlock * [nblocks];
@ -51718,6 +51804,8 @@ void NativeCodeProcedure::Optimize(void)
ResetVisited();
mEntryBlock->CheckAsmCode();
#endif
int t = 0;
#if 1
do

3
oscar64/NativeCodeGenerator.h
View File

@ -32,6 +32,7 @@ struct NativeRegisterData
void Reset(void);
void ResetMask(void);
void ResetAliasing(void);
bool SameData(const NativeRegisterData& d) const;
bool SameData(const NativeCodeInstruction& ins) const;
@ -57,6 +58,7 @@ struct NativeRegisterDataSet
void ResetWorkMasks(void);
void Intersect(const NativeRegisterDataSet& set);
void IntersectMask(const NativeRegisterDataSet& set);
void ResetAliasing(void);
};
struct ValueNumberingData
@ -123,6 +125,7 @@ static const uint32 NCIF_JSRFLAGS = 0x00000080;
static const uint32 NICT_INDEXFLIPPED = 0x00000100;
static const uint32 NICT_ZPFLIPPED = 0x00000200;
static const uint32 NICF_TMPREF = 0x00000400;
static const uint32 NCIF_ALIASING = 0x00000800;
static const uint32 NCIF_USE_CPU_REG_A = 0x00001000;
static const uint32 NCIF_USE_CPU_REG_X = 0x00002000;

2
oscar64/Parser.cpp
View File

@ -478,7 +478,7 @@ Declaration* Parser::ParseStructDeclaration(uint64 flags, DecType dt, Declaratio
mdec->mOffset--;
mdec->mShift = 8 - bitsleft;
bitsleft = bitsleft + 24 - mdec->mBits;
offset+=2;
offset+=3;
}
else
{