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Remove superfluous temporary move

This commit is contained in:
drmortalwombat 2022-04-10 21:54:12 +02:00
parent 6a40fdc75d
commit 7ed7134b53
4 changed files with 167 additions and 70 deletions
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84
oscar64/InterCode.cpp
View File

@ -7046,6 +7046,86 @@ bool InterCodeBasicBlock::MergeCommonPathInstructions(void)
return changed;
}
bool InterCodeBasicBlock::ForwardDiamondMovedTemp(void)
{
bool changed = false;
if (!mVisited)
{
mVisited = true;
if (mTrueJump && mFalseJump)
{
InterCodeBasicBlock* tblock = nullptr, * fblock = nullptr;
if (!mTrueJump->mFalseJump && mTrueJump->mTrueJump == mFalseJump)
{
tblock = mTrueJump;
fblock = mFalseJump;
}
else if (!mFalseJump->mFalseJump && mFalseJump->mTrueJump == mTrueJump)
{
fblock = mTrueJump;
tblock = mFalseJump;
}
if (fblock && tblock)
{
if (tblock->mNumEntries == 1 && fblock->mNumEntries == 2)
{
for (int i = mInstructions.Size() - 1; i >= 0; i--)
{
InterInstruction* mins = mInstructions[i];
if (mins->mCode == IC_LOAD_TEMPORARY)
{
int ttemp = mins->mDst.mTemp;
int stemp = mins->mSrc[0].mTemp;
if (!IsTempModifiedOnPath(ttemp, i + 1) && !IsTempModifiedOnPath(stemp, i + 1))
{
int j = 0;
while (j < tblock->mInstructions.Size() &&
tblock->mInstructions[j]->mDst.mTemp != ttemp &&
tblock->mInstructions[j]->mDst.mTemp != stemp)
{
j++;
}
if (j < tblock->mInstructions.Size() && tblock->mInstructions[j]->mDst.mTemp == ttemp)
{
if (!tblock->IsTempModifiedOnPath(stemp, j + 1))
{
tblock->mInstructions[j]->mDst.mTemp = stemp;
InterInstruction* nins = new InterInstruction();
nins->mCode = IC_LOAD_TEMPORARY;
nins->mDst.mTemp = ttemp;
nins->mDst.mType = mins->mDst.mType;
nins->mSrc[0].mTemp = stemp;
nins->mSrc[0].mType = mins->mDst.mType;
fblock->mInstructions.Insert(0, nins);
changed = true;
}
}
}
}
}
}
}
}
if (mTrueJump && mTrueJump->ForwardDiamondMovedTemp())
changed = true;
if (mFalseJump && mFalseJump->ForwardDiamondMovedTemp())
changed = true;
}
return changed;
}
bool InterCodeBasicBlock::IsTempModifiedOnPath(int temp, int at) const
{
while (at < mInstructions.Size())
@ -10015,6 +10095,10 @@ void InterCodeProcedure::Close(void)
ResetVisited();
mEntryBlock->DropUnreachable();
ResetVisited();
mEntryBlock->ForwardDiamondMovedTemp();
DisassembleDebug("Diamond move forwarding");
ResetEntryBlocks();
ResetVisited();
mEntryBlock->CollectEntryBlocks(nullptr);

2
oscar64/InterCode.h
View File

@ -434,6 +434,8 @@ public:
bool IsLeafProcedure(void);
bool ForwardDiamondMovedTemp(void);
void MarkRelevantStatics(void);
void RemoveNonRelevantStatics(void);

147
oscar64/NativeCodeGenerator.cpp
View File

@ -7457,6 +7457,26 @@ NativeCodeBasicBlock* NativeCodeBasicBlock::BinaryOperator(InterCodeProcedure* p
mIns.Push(NativeCodeInstruction(ASMIT_ROR, ASMIM_ZERO_PAGE, treg));
}
}
else if (shift == 15)
{
mIns.Push(NativeCodeInstruction(ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_TMP + proc->mTempOffset[ins->mSrc[1].mTemp] + 1));
mIns.Push(NativeCodeInstruction(ASMIT_ASL, ASMIM_IMPLIED));
mIns.Push(NativeCodeInstruction(ASMIT_LDA, ASMIM_IMMEDIATE, 0));
mIns.Push(NativeCodeInstruction(ASMIT_STA, ASMIM_ZERO_PAGE, treg + 1));
mIns.Push(NativeCodeInstruction(ASMIT_ROL, ASMIM_IMPLIED));
mIns.Push(NativeCodeInstruction(ASMIT_STA, ASMIM_ZERO_PAGE, treg + 0));
}
else if (shift == 14)
{
mIns.Push(NativeCodeInstruction(ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_TMP + proc->mTempOffset[ins->mSrc[1].mTemp] + 1));
mIns.Push(NativeCodeInstruction(ASMIT_ASL, ASMIM_IMPLIED));
mIns.Push(NativeCodeInstruction(ASMIT_ROL, ASMIM_IMPLIED));
mIns.Push(NativeCodeInstruction(ASMIT_ROL, ASMIM_IMPLIED));
mIns.Push(NativeCodeInstruction(ASMIT_AND, ASMIM_IMMEDIATE, 3));
mIns.Push(NativeCodeInstruction(ASMIT_STA, ASMIM_ZERO_PAGE, treg + 0));
mIns.Push(NativeCodeInstruction(ASMIT_LDA, ASMIM_IMMEDIATE, 0));
mIns.Push(NativeCodeInstruction(ASMIT_STA, ASMIM_ZERO_PAGE, treg + 1));
}
else if (shift >= 8)
{
mIns.Push(NativeCodeInstruction(ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_TMP + proc->mTempOffset[ins->mSrc[1].mTemp] + 1));
@ -9722,7 +9742,7 @@ bool NativeCodeBasicBlock::ForwardAccuAddSub(void)
mIns[i].mType = ASMIT_NOP; mIns[i].mMode = ASMIM_IMPLIED;
changed = true;
}
else if (mIns[i + 1].mType == ASMIT_CLC && mIns[i + 2].mType == ASMIT_ADC && mIns[i + 2].mMode == ASMIM_IMMEDIATE && !(mIns[i + 2].mLive & LIVE_CPU_REG_C))
else if (i + 2 < mIns.Size() && mIns[i + 1].mType == ASMIT_CLC && mIns[i + 2].mType == ASMIT_ADC && mIns[i + 2].mMode == ASMIM_IMMEDIATE && !(mIns[i + 2].mLive & LIVE_CPU_REG_C))
{
for (int j = apred; j < i; j++)
mIns[j].mLive |= LIVE_CPU_REG_A;
@ -9731,7 +9751,7 @@ bool NativeCodeBasicBlock::ForwardAccuAddSub(void)
mIns[i + 2].mAddress = (mIns[i + 2].mAddress - aoffset) & 0xff;
changed = true;
}
else if (carry == 1 && mIns[i + 1].mType == ASMIT_ADC && mIns[i + 1].mMode == ASMIM_IMMEDIATE && !(mIns[i + 1].mLive & LIVE_CPU_REG_C))
else if (carry == 1 && i + 1 < mIns.Size() && mIns[i + 1].mType == ASMIT_ADC && mIns[i + 1].mMode == ASMIM_IMMEDIATE && !(mIns[i + 1].mLive & LIVE_CPU_REG_C))
{
for (int j = apred; j < i; j++)
mIns[j].mLive |= LIVE_CPU_REG_A;
@ -11257,8 +11277,29 @@ bool NativeCodeBasicBlock::FindImmediateStore(int at, int reg, const NativeCodeI
return false;
}
bool NativeCodeBasicBlock::CheckPatchFail(const NativeCodeBasicBlock* block, int reg)
{
if (mPatched)
return false;
if (!mPatchFail)
{
mPatchFail = true;
if (mTrueJump && !mTrueJump->CheckPatchFail(block, reg))
return false;
if (mFalseJump && !mFalseJump->CheckPatchFail(block, reg))
return false;
}
return true;
}
bool NativeCodeBasicBlock::CheckSingleUseGlobalLoad(const NativeCodeBasicBlock* block, int reg, int at, const NativeCodeInstruction& ains, int cycles)
{
if (mPatchFail)
return false;
if (!mPatched)
{
if (at == 0)
@ -11300,7 +11341,17 @@ bool NativeCodeBasicBlock::CheckSingleUseGlobalLoad(const NativeCodeBasicBlock*
return false;
}
else
{
if (mExitRequiredRegs[reg])
{
if (mTrueJump && !mTrueJump->CheckPatchFail(block, reg))
return false;
if (mFalseJump && !mFalseJump->CheckPatchFail(block, reg))
return false;
}
return true;
}
}
else
return true;
@ -17058,6 +17109,7 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
}
#endif
#if 1
if (i + 1 < mIns.Size())
{
@ -17166,7 +17218,6 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
mIns[i + 1].mMode = ASMIM_IMPLIED;
progress = true;
}
#if 1
else if (
mIns[i + 0].mType == ASMIT_STA && mIns[i + 0].mMode == ASMIM_ZERO_PAGE && mIns[i + 1].mMode == ASMIM_ZERO_PAGE && mIns[i].mAddress == mIns[i + 1].mAddress &&
(mIns[i + 1].mType == ASMIT_LSR || mIns[i + 1].mType == ASMIT_ASL || mIns[i + 1].mType == ASMIT_ROL || mIns[i + 1].mType == ASMIT_ROR) && !(mIns[i + 0].mLive & LIVE_CPU_REG_A))
@ -17177,7 +17228,6 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
mIns[i + 1].mType = ASMIT_STA;
progress = true;
}
#if 1
else if (
mIns[i + 0].mType == ASMIT_ASL && mIns[i + 0].mMode == ASMIM_ZERO_PAGE &&
mIns[i + 1].mType == ASMIT_LDY && mIns[i + 1].mMode == ASMIM_ZERO_PAGE && mIns[i + 0].mAddress == mIns[i + 1].mAddress && !(mIns[i + 1].mLive & (LIVE_MEM | LIVE_CPU_REG_A)))
@ -17200,7 +17250,6 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
mIns[i + 0].mLive |= LIVE_CPU_REG_A;
progress = true;
}
#endif
else if (
mIns[i + 0].mType == ASMIT_STA &&
mIns[i + 1].mType == ASMIT_LDX && mIns[i + 0].SameEffectiveAddress(mIns[i + 1]))
@ -17210,7 +17259,6 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
mIns[i + 0].mLive |= LIVE_CPU_REG_A;
progress = true;
}
#if 1
else if (
mIns[i + 0].mType == ASMIT_TXA &&
mIns[i + 1].mType == ASMIT_STA && (mIns[i + 1].mMode == ASMIM_ZERO_PAGE || mIns[i + 1].mMode == ASMIM_ABSOLUTE))
@ -17219,7 +17267,6 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
mIns[i + 1].mType = ASMIT_STX;
progress = true;
}
#endif
else if (
mIns[i + 0].mType == ASMIT_TYA &&
mIns[i + 1].mType == ASMIT_STA && (mIns[i + 1].mMode == ASMIM_ZERO_PAGE || mIns[i + 1].mMode == ASMIM_ABSOLUTE))
@ -17337,7 +17384,6 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
mIns[i + 1].mType = ASMIT_NOP; mIns[i + 1].mMode = ASMIM_IMPLIED;
progress = true;
}
#if 1
else if (
mIns[i + 0].mType == ASMIT_TXA &&
mIns[i + 1].mType == ASMIT_CMP && (mIns[i + 1].mMode == ASMIM_IMMEDIATE || mIns[i + 1].mMode == ASMIM_ZERO_PAGE || mIns[i + 1].mMode == ASMIM_ABSOLUTE))
@ -17346,7 +17392,6 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
mIns[i + 0].mLive |= LIVE_CPU_REG_X;
progress = true;
}
#endif
else if (
mIns[i + 0].mType == ASMIT_TYA &&
mIns[i + 1].mType == ASMIT_CMP && (mIns[i + 1].mMode == ASMIM_IMMEDIATE || mIns[i + 1].mMode == ASMIM_ZERO_PAGE || mIns[i + 1].mMode == ASMIM_ABSOLUTE))
@ -17410,9 +17455,6 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
mIns[i + 0].mType = ASMIT_LSR;
progress = true;
}
#endif
#if 1
else if (
(mIns[i + 0].mType == ASMIT_ASL || mIns[i + 0].mType == ASMIT_LSR || mIns[i + 0].mType == ASMIT_ROL || mIns[i + 0].mType == ASMIT_ROR) && mIns[i + 0].mMode == ASMIM_ZERO_PAGE &&
mIns[i + 1].mType == ASMIT_LDA && mIns[i + 1].mMode == ASMIM_ZERO_PAGE && mIns[i + 1].mAddress == mIns[i + 0].mAddress && !(mIns[i + 1].mLive & LIVE_MEM))
@ -17424,9 +17466,6 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
mIns[i + 0].mType = ASMIT_LDA;
progress = true;
}
#endif
#if 1
else if (mIns[i + 0].mType == ASMIT_LDY && mIns[i + 0].mMode == ASMIM_IMMEDIATE && mIns[i + 1].mMode == ASMIM_INDIRECT_Y)
{
const NativeCodeInstruction* ains, *iins;
@ -17535,7 +17574,7 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
}
}
}
#endif
#if 1
if (mIns[i + 0].mType == ASMIT_LDY && mIns[i + 0].mMode == ASMIM_IMMEDIATE &&
mIns[i + 1].mMode == ASMIM_INDIRECT_Y)
@ -17658,6 +17697,7 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
}
#endif
#if 1
if (i + 2 < mIns.Size())
{
@ -17678,6 +17718,7 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
mIns[i + 2].mType = ASMIT_STA;
progress = true;
}
else if (mIns[i + 0].mType == ASMIT_STA && mIns[i + 0].mMode == ASMIM_ZERO_PAGE &&
mIns[i + 1].mType == ASMIT_LDA && mIns[i + 1].mMode != ASMIM_ZERO_PAGE &&
mIns[i + 2].mMode == ASMIM_ZERO_PAGE && mIns[i + 0].mAddress == mIns[i + 2].mAddress &&
@ -18088,7 +18129,6 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
mIns[i + 2].mType = ASMIT_NOP; mIns[i + 2].mMode = ASMIM_IMPLIED;
progress = true;
}
#if 1
else if (
mIns[i + 0].mType == ASMIT_ASL && mIns[i + 0].mMode == ASMIM_ZERO_PAGE &&
mIns[i + 1].mType == ASMIT_ASL && mIns[i + 1].mMode == ASMIM_ZERO_PAGE && mIns[i + 1].mAddress == mIns[i + 0].mAddress &&
@ -18160,8 +18200,6 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
mIns[i + 2].mType = ASMIT_STA;
progress = true;
}
#endif
else if (
mIns[i + 0].mType == ASMIT_TAX &&
mIns[i + 1].mType == ASMIT_TAY &&
@ -18265,7 +18303,6 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
mIns[i + 0].mLive |= LIVE_CPU_REG_A;
progress = true;
}
#if 1
else if (
mIns[i + 0].mType == ASMIT_LDA &&
mIns[i + 1].mType == ASMIT_STA && mIns[i + 1].mMode == ASMIM_ZERO_PAGE && !(mIns[i + 1].mLive & LIVE_CPU_REG_A) &&
@ -18279,8 +18316,6 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
mIns[i + 2].mType = ASMIT_NOP; mIns[i + 2].mMode = ASMIM_IMPLIED;
progress = true;
}
#endif
else if (
mIns[i + 0].mType == ASMIT_LDA && !mIns[i + 0].RequiresXReg() &&
mIns[i + 1].mType == ASMIT_LDX &&
@ -18355,8 +18390,15 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
mIns.Insert(i, ins);
progress = true;
}
else if (
mIns[i + 0].mType == ASMIT_AND && mIns[i + 0].mMode == ASMIT_AND && (mIns[i + 0].mAddress & 0x3f) == 0x3f &&
mIns[i + 1].mType == ASMIT_ASL && mIns[i + 1].mMode == ASMIM_IMPLIED &&
mIns[i + 2].mType == ASMIT_ASL && mIns[i + 2].mMode == ASMIM_IMPLIED && !(mIns[i + 2].mLive & LIVE_CPU_REG_C))
{
mIns[i + 0].mType = ASMIT_NOP; mIns[i + 0].mMode = ASMIM_IMPLIED;
progress = true;
}
#if 1
if (
mIns[i + 0].mType == ASMIT_LDY && mIns[i + 0].mMode == ASMIM_IMMEDIATE && mIns[i + 0].mAddress <= 1 &&
mIns[i + 1].mType == ASMIT_LDA &&
@ -18403,8 +18445,7 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
progress = true;
}
}
#endif
#if 1
if (
mIns[i + 0].mType == ASMIT_LDY && mIns[i + 0].mMode == ASMIM_IMMEDIATE &&
mIns[i + 1].mType == ASMIT_LDA &&
@ -18429,9 +18470,10 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
progress = true;
}
}
#endif
}
#endif
#if 1
if (i + 3 < mIns.Size())
{
if (mIns[i + 0].mType == ASMIT_LDA && mIns[i + 3].mType == ASMIT_STA && mIns[i + 0].SameEffectiveAddress(mIns[i + 3]) &&
@ -18548,7 +18590,6 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
progress = true;
}
#if 1
else if (
mIns[i + 0].mType == ASMIT_STA && mIns[i + 0].mMode == ASMIM_ZERO_PAGE &&
mIns[i + 1].mType == ASMIT_LDY && mIns[i + 1].mMode == ASMIM_IMMEDIATE &&
@ -18560,8 +18601,6 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
progress = true;
}
#endif
#if 1
else if (
mIns[i + 0].mType == ASMIT_LDA &&
mIns[i + 1].mType == ASMIT_STA && mIns[i + 1].mMode == ASMIM_ZERO_PAGE && !mIns[i + 0].MayBeChangedOnAddress(mIns[i + 1]) &&
@ -18573,8 +18612,6 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
progress = true;
}
#endif
#if 1
else if (
mIns[i + 0].mType == ASMIT_LDA &&
mIns[i + 1].mType == ASMIT_EOR && mIns[i + 1].mMode == ASMIM_IMMEDIATE && mIns[i + 1].mAddress == 0xff &&
@ -18590,8 +18627,6 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
progress = true;
}
#endif
#if 1
else if (
mIns[i + 0].mType == ASMIT_STA && mIns[i + 0].mMode == ASMIM_ZERO_PAGE &&
mIns[i + 1].mType == ASMIT_LDA && mIns[i + 1].mMode == ASMIM_ZERO_PAGE && mIns[i + 0].mAddress != mIns[i + 1].mAddress &&
@ -18609,8 +18644,6 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
progress = true;
}
#endif
#if 1
else if (
mIns[i + 0].mType == ASMIT_STA && mIns[i + 0].mMode == ASMIM_ZERO_PAGE &&
mIns[i + 1].mType == ASMIT_SEC &&
@ -18628,8 +18661,6 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
progress = true;
}
#endif
#if 1
else if (
mIns[i + 0].mType == ASMIT_STA && mIns[i + 0].mMode == ASMIM_ZERO_PAGE &&
mIns[i + 1].mType == ASMIT_LDA && (mIns[i + 1].mMode == ASMIM_ZERO_PAGE && mIns[i + 0].mAddress != mIns[i + 2].mAddress || mIns[i + 1].mMode == ASMIM_ABSOLUTE) &&
@ -18644,8 +18675,6 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
progress = true;
}
#endif
#if 1
else if (
mIns[i + 0].mType == ASMIT_LDA && mIns[i + 0].mMode == ASMIM_IMMEDIATE &&
mIns[i + 1].mType == ASMIT_ADC &&
@ -18659,8 +18688,6 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
progress = true;
}
#endif
#if 1
else if (
mIns[i + 0].mType == ASMIT_LDA && mIns[i + 0].mMode == ASMIM_IMMEDIATE && mIns[i + 0].mAddress == 0x00 &&
mIns[i + 1].mType == ASMIT_ADC && mIns[i + 1].mMode == ASMIM_IMMEDIATE && mIns[i + 1].mAddress == 0xff &&
@ -18673,7 +18700,6 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
progress = true;
}
#endif
else if (
mIns[i + 0].mType == ASMIT_LDA &&
mIns[i + 3].mType == ASMIT_STA && mIns[i + 0].SameEffectiveAddress(mIns[i + 3]) &&
@ -18705,7 +18731,6 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
mIns[i + 3].mFlags = mIns[i + 0].mFlags;
progress = true;
}
#if 1
else if (
mIns[i + 0].mType == ASMIT_LDA && mIns[i + 0].mMode == ASMIM_IMMEDIATE && mIns[i + 0].mAddress == 0 &&
mIns[i + 1].mType == ASMIT_ADC && mIns[i + 1].mMode == ASMIM_IMMEDIATE && mIns[i + 1].mAddress == 0xff &&
@ -18718,8 +18743,6 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
mIns[i + 3].mType = ASMIT_NOP; mIns[i + 3].mMode = ASMIM_IMPLIED;
progress = true;
}
#endif
#if 1
else if (
mIns[i + 0].mType == ASMIT_CLC &&
mIns[i + 1].mType == ASMIT_LDA && mIns[i + 1].mMode == ASMIM_ZERO_PAGE &&
@ -18736,8 +18759,6 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
mIns[i + 3].mMode = ASMIM_IMPLIED;
progress = true;
}
#endif
#if 1
else if (
mIns[i + 0].mType == ASMIT_SEC &&
mIns[i + 1].mType == ASMIT_LDA && mIns[i + 1].mMode == ASMIM_ZERO_PAGE &&
@ -18754,8 +18775,6 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
mIns[i + 3].mMode = ASMIM_IMPLIED;
progress = true;
}
#endif
#if 1
else if (
mIns[i + 0].mType == ASMIT_CLC &&
mIns[i + 1].mType == ASMIT_LDA && mIns[i + 1].mMode == ASMIM_ZERO_PAGE &&
@ -18772,8 +18791,6 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
mIns[i + 3].mMode = ASMIM_IMPLIED;
progress = true;
}
#endif
#if 1
else if (
mIns[i + 0].mType == ASMIT_SEC &&
mIns[i + 1].mType == ASMIT_LDA && mIns[i + 1].mMode == ASMIM_ZERO_PAGE &&
@ -18790,7 +18807,6 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
mIns[i + 3].mMode = ASMIM_IMPLIED;
progress = true;
}
#endif
else if (
mIns[i + 0].mType == ASMIT_TXA &&
mIns[i + 1].mType == ASMIT_CLC &&
@ -18942,7 +18958,6 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
progress = true;
}
#if 1
else if (
mIns[i + 0].mType == ASMIT_LDY && mIns[i + 0].mMode == ASMIM_ZERO_PAGE &&
!(mIns[i + 1].ChangesYReg() || mIns[i + 1].mMode == ASMIM_INDIRECT_Y || mIns[i + 1].RequiresXReg()) &&
@ -18956,8 +18971,6 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
mIns[i + 3].mType = ASMIT_NOP; mIns[i + 3].mMode = ASMIM_IMPLIED;
progress = true;
}
#endif
#if 1
else if (
mIns[i + 0].IsShift() && mIns[i + 0].mMode == ASMIM_ZERO_PAGE &&
mIns[i + 1].mType == ASMIT_CLC &&
@ -18976,8 +18989,7 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
mIns[i + 2].mLive |= LIVE_CPU_REG_A;
progress = true;
}
#endif
#if 1
if (
mIns[i + 0].mType == ASMIT_LDY && mIns[i + 0].mMode == ASMIM_IMMEDIATE && mIns[i + 0].mAddress == 0 &&
mIns[i + 1].mType == ASMIT_LDA && mIns[i + 1].mMode == ASMIM_INDIRECT_Y &&
@ -19005,11 +19017,11 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
progress = true;
}
}
}
#endif
}
#if 1
if (i + 4 < mIns.Size())
{
if (mIns[i + 0].mType == ASMIT_STA && mIns[i + 0].mMode == ASMIM_ZERO_PAGE &&
@ -19018,13 +19030,12 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
{
// Flip arguments of ADC if second parameter in accu at entry
mIns[i + 3] = mIns[i + 2];
mIns[i + 3].mType = ASMIT_ADC;
mIns[i + 3].CopyMode(mIns[i + 2]);
mIns[i + 2].mMode = ASMIM_ZERO_PAGE;
mIns[i + 2].mAddress = mIns[i + 0].mAddress;
progress = true;
}
#if 1
else if (
mIns[i + 0].mType == ASMIT_STA && mIns[i + 0].mMode == ASMIM_ZERO_PAGE &&
mIns[i + 3].mType == ASMIT_SBC && mIns[i + 3].mMode == ASMIM_ZERO_PAGE && mIns[i + 0].mAddress == mIns[i + 3].mAddress &&
@ -19057,8 +19068,6 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
progress = true;
}
#endif
#if 1
else if (
mIns[i + 0].mType == ASMIT_CLC &&
mIns[i + 1].mType == ASMIT_LDA && mIns[i + 1].mMode == ASMIM_ZERO_PAGE &&
@ -19078,7 +19087,6 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
progress = true;
}
#endif
else if (
mIns[i + 0].mType == ASMIT_LDA && mIns[i + 0].mMode != ASMIM_ZERO_PAGE &&
mIns[i + 1].mType == ASMIT_STA && mIns[i + 1].mMode == ASMIM_ZERO_PAGE &&
@ -19143,7 +19151,6 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
mIns[i + 4].mType = ASMIT_STA;
progress = true;
}
#if 1
else if (
mIns[i + 0].mType == ASMIT_LDY && mIns[i + 0].mMode == ASMIM_IMMEDIATE && mIns[i + 0].mAddress == 0 &&
mIns[i + 1].mType == ASMIT_LDA && mIns[i + 1].mMode == ASMIM_INDIRECT_Y &&
@ -19172,11 +19179,10 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
progress = true;
}
}
#endif
}
#endif
#if 1
if (i + 3 < mIns.Size())
{
if (
@ -20816,7 +20822,10 @@ void NativeCodeProcedure::ResetEntryBlocks(void)
void NativeCodeProcedure::ResetPatched(void)
{
for (int i = 0; i < mBlocks.Size(); i++)
{
mBlocks[i]->mPatched = false;
mBlocks[i]->mPatchFail = false;
}
}
void NativeCodeProcedure::ResetVisited(void)

4
oscar64/NativeCodeGenerator.h
View File

@ -136,7 +136,7 @@ public:
GrowingArray<NativeCodeBasicBlock*> mEntryBlocks;
int mOffset, mSize, mPlace, mNumEntries, mNumEntered, mFrameOffset;
bool mPlaced, mCopied, mKnownShortBranch, mBypassed, mAssembled, mNoFrame, mVisited, mLoopHead, mVisiting, mLocked, mPatched;
bool mPlaced, mCopied, mKnownShortBranch, mBypassed, mAssembled, mNoFrame, mVisited, mLoopHead, mVisiting, mLocked, mPatched, mPatchFail;
NativeCodeBasicBlock * mDominator;
NativeCodeBasicBlock* mLoopHeadBlock;
@ -311,6 +311,8 @@ public:
bool AlternateXYUsage(void);
bool ForwardAbsoluteLoadStores(void);
bool CheckPatchFail(const NativeCodeBasicBlock* block, int reg);
bool CheckGlobalAddressSumYPointer(const NativeCodeBasicBlock * block, int reg, int at, int yval);
bool PatchGlobalAddressSumYPointer(const NativeCodeBasicBlock* block, int reg, int at, int yval, LinkerObject * lobj, int address);