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Improve signed integer compare

This commit is contained in:
drmortalwombat 2024-09-26 12:39:38 +02:00 committed by John Schneiderman
parent bdd25cbb1d
commit 7bd1bdcbd8
1 changed files with 138 additions and 62 deletions
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200
oscar64/NativeCodeGenerator.cpp
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@ -12800,29 +12800,55 @@ void NativeCodeBasicBlock::RelationalOperator(InterCodeProcedure* proc, const In
if (op == IA_CMPLEU || op == IA_CMPGU || op == IA_CMPLES || op == IA_CMPGS)
{
li = 0; ri = 1;
op = MirrorRelational(op);
}
NativeCodeBasicBlock* eblock3 = nproc->AllocateBlock();
NativeCodeBasicBlock* eblock2 = nproc->AllocateBlock();
NativeCodeBasicBlock* eblock1 = nproc->AllocateBlock();
NativeCodeBasicBlock* nblock = nproc->AllocateBlock();
NativeCodeBasicBlock* rblock = nproc->AllocateBlock();
if (op >= IA_CMPGES && op <= IA_CMPLS)
{
if (ins->mSrc[ri].mTemp >= 0)
{
mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_TMP + proc->mTempOffset[ins->mSrc[ri].mTemp] + 3));
mIns.Push(NativeCodeInstruction(ins, ASMIT_EOR, ASMIM_IMMEDIATE, 0x80));
mIns.Push(NativeCodeInstruction(ins, ASMIT_STA, ASMIM_ZERO_PAGE, BC_REG_WORK));
}
NativeCodeBasicBlock* eblock = nproc->AllocateBlock();
if (ins->mSrc[li].mTemp < 0)
mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_IMMEDIATE, ((ins->mSrc[li].mIntConst >> 24) & 0xff) ^ 0x80));
if (ins->mSrc[li].mTemp < 0)
mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_IMMEDIATE, (ins->mSrc[li].mIntConst >> 24) & 0xff));
else
mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_TMP + proc->mTempOffset[ins->mSrc[li].mTemp] + 3));
mIns.Push(NativeCodeInstruction(ins, ASMIT_CMP, ASMIM_ZERO_PAGE, BC_REG_TMP + proc->mTempOffset[ins->mSrc[ri].mTemp] + 3));
this->Close(ins, eblock3, eblock, ASMIT_BEQ);
eblock->mIns.Push(NativeCodeInstruction(ins, ASMIT_EOR, ASMIM_ZERO_PAGE, BC_REG_TMP + proc->mTempOffset[ins->mSrc[ri].mTemp] + 3));
eblock->Close(ins, nblock, rblock, ASMIT_BPL);
}
else
{
mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_TMP + proc->mTempOffset[ins->mSrc[li].mTemp] + 3));
mIns.Push(NativeCodeInstruction(ins, ASMIT_EOR, ASMIM_IMMEDIATE, 0x80));
}
if (ins->mSrc[ri].mTemp >= 0)
{
mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_TMP + proc->mTempOffset[ins->mSrc[ri].mTemp] + 3));
mIns.Push(NativeCodeInstruction(ins, ASMIT_EOR, ASMIM_IMMEDIATE, 0x80));
mIns.Push(NativeCodeInstruction(ins, ASMIT_STA, ASMIM_ZERO_PAGE, BC_REG_WORK));
}
if (ins->mSrc[ri].mTemp < 0)
mIns.Push(NativeCodeInstruction(ins, ASMIT_CMP, ASMIM_IMMEDIATE, ((ins->mSrc[ri].mIntConst >> 24) & 0xff) ^ 0x80));
else
mIns.Push(NativeCodeInstruction(ins, ASMIT_CMP, ASMIM_ZERO_PAGE, BC_REG_WORK));
if (ins->mSrc[li].mTemp < 0)
mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_IMMEDIATE, ((ins->mSrc[li].mIntConst >> 24) & 0xff) ^ 0x80));
else
{
mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_TMP + proc->mTempOffset[ins->mSrc[li].mTemp] + 3));
mIns.Push(NativeCodeInstruction(ins, ASMIT_EOR, ASMIM_IMMEDIATE, 0x80));
}
if (ins->mSrc[ri].mTemp < 0)
mIns.Push(NativeCodeInstruction(ins, ASMIT_CMP, ASMIM_IMMEDIATE, ((ins->mSrc[ri].mIntConst >> 24) & 0xff) ^ 0x80));
else
mIns.Push(NativeCodeInstruction(ins, ASMIT_CMP, ASMIM_ZERO_PAGE, BC_REG_WORK));
this->Close(ins, nblock, eblock3, ASMIT_BNE);
}
}
else
{
@ -12834,14 +12860,9 @@ void NativeCodeBasicBlock::RelationalOperator(InterCodeProcedure* proc, const In
mIns.Push(NativeCodeInstruction(ins, ASMIT_CMP, ASMIM_IMMEDIATE, (ins->mSrc[ri].mIntConst >> 24) & 0xff));
else
mIns.Push(NativeCodeInstruction(ins, ASMIT_CMP, ASMIM_ZERO_PAGE, BC_REG_TMP + proc->mTempOffset[ins->mSrc[ri].mTemp] + 3));
this->Close(ins, nblock, eblock3, ASMIT_BNE);
}
NativeCodeBasicBlock* eblock3 = nproc->AllocateBlock();
NativeCodeBasicBlock* eblock2 = nproc->AllocateBlock();
NativeCodeBasicBlock* eblock1 = nproc->AllocateBlock();
NativeCodeBasicBlock* nblock = nproc->AllocateBlock();
this->Close(ins, nblock, eblock3, ASMIT_BNE);
if (ins->mSrc[li].mTemp < 0)
eblock3->mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_IMMEDIATE, (ins->mSrc[li].mIntConst >> 16) & 0xff));
@ -12878,10 +12899,12 @@ void NativeCodeBasicBlock::RelationalOperator(InterCodeProcedure* proc, const In
{
case IA_CMPEQ:
nblock->Close(ins, falseJump, nullptr, ASMIT_JMP);
rblock->Close(ins, falseJump, nullptr, ASMIT_JMP);
eblock1->Close(ins, trueJump, falseJump, ASMIT_BEQ);
break;
case IA_CMPNE:
nblock->Close(ins, trueJump, nullptr, ASMIT_JMP);
rblock->Close(ins, trueJump, nullptr, ASMIT_JMP);
eblock1->Close(ins, falseJump, trueJump, ASMIT_BEQ);
break;
case IA_CMPLU:
@ -12890,13 +12913,15 @@ void NativeCodeBasicBlock::RelationalOperator(InterCodeProcedure* proc, const In
case IA_CMPGS:
eblock1->Close(ins, nblock, nullptr, ASMIT_JMP);
nblock->Close(ins, trueJump, falseJump, ASMIT_BCC);
rblock->Close(ins, trueJump, falseJump, ASMIT_BCS);
break;
case IA_CMPLEU:
case IA_CMPLES:
case IA_CMPGEU:
case IA_CMPGES:
eblock1->Close(ins, nblock, nullptr, ASMIT_JMP);
nblock->Close(ins, falseJump, trueJump, ASMIT_BCC);
nblock->Close(ins, trueJump, falseJump, ASMIT_BCS);
rblock->Close(ins, trueJump, falseJump, ASMIT_BCC);
break;
}
@ -13005,33 +13030,29 @@ void NativeCodeBasicBlock::RelationalOperator(InterCodeProcedure* proc, const In
scmp && ins->mSrc[0].IsSByte() && ins->mSrc[1].IsSByte() ||
ucmp && ins->mSrc[0].IsUByte() && ins->mSrc[1].IsUByte())
{
NativeCodeBasicBlock* eblock = nproc->AllocateBlock();
NativeCodeBasicBlock* nblock = nproc->AllocateBlock();
int li = 1, ri = 0;
if (op == IA_CMPLEU || op == IA_CMPGU || op == IA_CMPLES || op == IA_CMPGS)
{
li = 0; ri = 1;
op = MirrorRelational(op);
}
int iconst = 0;
bool rconst = false;
if (ins->mSrc[li].mTemp < 0 && (op == IA_CMPGES || op == IA_CMPLS) && int16(ins->mSrc[li].mIntConst) > - 128)
{
iconst = int(ins->mSrc[li].mIntConst) - 1;
rconst = true;
li = ri; ri = 1 - li;
NativeCodeBasicBlock* t = trueJump; trueJump = falseJump; falseJump = t;
}
else if (ins->mSrc[li].mTemp < 0 && (op == IA_CMPLES || op == IA_CMPGS) && int16(ins->mSrc[li].mIntConst) < 127)
if (ins->mSrc[li].mTemp < 0 && op == IA_CMPGES && int16(ins->mSrc[li].mIntConst) < 127)
{
iconst = int(ins->mSrc[li].mIntConst) + 1;
rconst = true;
li = ri; ri = 1 - li;
NativeCodeBasicBlock* t = trueJump; trueJump = falseJump; falseJump = t;
op = IA_CMPLS;
}
else if (ins->mSrc[li].mTemp < 0 && op == IA_CMPLS && int16(ins->mSrc[li].mIntConst) < 127)
{
iconst = int(ins->mSrc[li].mIntConst) + 1;
rconst = true;
li = ri; ri = 1 - li;
op = IA_CMPGES;
}
else if (ins->mSrc[ri].mTemp < 0)
{
@ -13043,23 +13064,54 @@ void NativeCodeBasicBlock::RelationalOperator(InterCodeProcedure* proc, const In
{
if (!rconst)
{
mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_TMP + proc->mTempOffset[ins->mSrc[ri].mTemp]));
mIns.Push(NativeCodeInstruction(ins, ASMIT_EOR, ASMIM_IMMEDIATE, 0x80));
mIns.Push(NativeCodeInstruction(ins, ASMIT_STA, ASMIM_ZERO_PAGE, BC_REG_WORK));
}
NativeCodeBasicBlock* eblock = nproc->AllocateBlock();
NativeCodeBasicBlock* nblock = nproc->AllocateBlock();
NativeCodeBasicBlock* pblock = nproc->AllocateBlock();
if (ins->mSrc[li].mTemp < 0)
mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_IMMEDIATE, (ins->mSrc[li].mIntConst & 0xff) ^ 0x80));
NativeCodeBasicBlock* eqjmp, * gtjmp, * ltjmp;
if (op == IA_CMPGES || op == IA_CMPLES)
eqjmp = trueJump;
else
eqjmp = falseJump;
if (op == IA_CMPGS || op == IA_CMPGES)
{
gtjmp = trueJump;
ltjmp = falseJump;
}
else
{
gtjmp = falseJump;
ltjmp = trueJump;
}
if (ins->mSrc[li].mTemp < 0)
mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_IMMEDIATE, ins->mSrc[li].mIntConst & 0xff));
else
mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_TMP + proc->mTempOffset[ins->mSrc[li].mTemp]));
mIns.Push(NativeCodeInstruction(ins, ASMIT_CMP, ASMIM_ZERO_PAGE, BC_REG_TMP + proc->mTempOffset[ins->mSrc[ri].mTemp]));
this->Close(ins, eqjmp, eblock, ASMIT_BEQ);
eblock->mIns.Push(NativeCodeInstruction(ins, ASMIT_EOR, ASMIM_ZERO_PAGE, BC_REG_TMP + proc->mTempOffset[ins->mSrc[ri].mTemp]));
eblock->Close(ins, pblock, nblock, ASMIT_BCS);
pblock->Close(ins, gtjmp, ltjmp, ASMIT_BPL);
nblock->Close(ins, ltjmp, gtjmp, ASMIT_BPL);
return;
}
else
{
mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_TMP + proc->mTempOffset[ins->mSrc[li].mTemp]));
mIns.Push(NativeCodeInstruction(ins, ASMIT_EOR, ASMIM_IMMEDIATE, 0x80));
}
if (ins->mSrc[li].mTemp < 0)
mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_IMMEDIATE, (ins->mSrc[li].mIntConst & 0xff) ^ 0x80));
else
{
mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_TMP + proc->mTempOffset[ins->mSrc[li].mTemp]));
mIns.Push(NativeCodeInstruction(ins, ASMIT_EOR, ASMIM_IMMEDIATE, 0x80));
}
if (rconst)
mIns.Push(NativeCodeInstruction(ins, ASMIT_CMP, ASMIM_IMMEDIATE, (iconst & 0xff) ^ 0x80));
else
mIns.Push(NativeCodeInstruction(ins, ASMIT_CMP, ASMIM_ZERO_PAGE, BC_REG_WORK));
}
}
else
{
@ -13095,7 +13147,6 @@ void NativeCodeBasicBlock::RelationalOperator(InterCodeProcedure* proc, const In
break;
}
}
#if 1
else if (ins->mSrc[1].mTemp < 0 && ins->mSrc[1].mIntConst < 256 && ins->mSrc[1].mIntConst > 0 || ins->mSrc[0].mTemp < 0 && ins->mSrc[0].mIntConst < 256 && ins->mSrc[0].mIntConst > 0)
@ -13329,6 +13380,7 @@ void NativeCodeBasicBlock::RelationalOperator(InterCodeProcedure* proc, const In
{
NativeCodeBasicBlock* eblock = nproc->AllocateBlock();
NativeCodeBasicBlock* nblock = nproc->AllocateBlock();
NativeCodeBasicBlock* rblock = nproc->AllocateBlock();
NativeCodeBasicBlock* cblock = this;
if (op == IA_CMPLU && ins->mSrc[0].mTemp == -1 && ins->mSrc[1].IsUnsigned() && ins->mSrc[1].mRange.mMaxValue == ins->mSrc[0].mIntConst)
@ -13377,6 +13429,7 @@ void NativeCodeBasicBlock::RelationalOperator(InterCodeProcedure* proc, const In
cblock->mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_TMP + proc->mTempOffset[ins->mSrc[li].mTemp] + 1));
cblock->mIns.Push(NativeCodeInstruction(ins, ASMIT_CMP, ASMIM_ZERO_PAGE, BC_REG_TMP + proc->mTempOffset[ins->mSrc[ri].mTemp] + 1));
cblock->Close(ins, nblock, eblock, ASMIT_BNE);
}
else if (ins->mSrc[li].mTemp >= 0 && ins->mSrc[ri].mTemp >= 0 && ins->mSrc[ri].IsPositive() && (op == IA_CMPGES || op == IA_CMPLES))
{
@ -13388,6 +13441,7 @@ void NativeCodeBasicBlock::RelationalOperator(InterCodeProcedure* proc, const In
cblock->mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_TMP + proc->mTempOffset[ins->mSrc[li].mTemp] + 1));
cblock->mIns.Push(NativeCodeInstruction(ins, ASMIT_CMP, ASMIM_ZERO_PAGE, BC_REG_TMP + proc->mTempOffset[ins->mSrc[ri].mTemp] + 1));
cblock->Close(ins, nblock, eblock, ASMIT_BNE);
}
else if (ins->mSrc[li].mTemp >= 0 && ins->mSrc[ri].mTemp >= 0 && ins->mSrc[ri].IsPositive() && (op == IA_CMPGS || op == IA_CMPLS))
{
@ -13399,6 +13453,7 @@ void NativeCodeBasicBlock::RelationalOperator(InterCodeProcedure* proc, const In
cblock->mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_TMP + proc->mTempOffset[ins->mSrc[li].mTemp] + 1));
cblock->mIns.Push(NativeCodeInstruction(ins, ASMIT_CMP, ASMIM_ZERO_PAGE, BC_REG_TMP + proc->mTempOffset[ins->mSrc[ri].mTemp] + 1));
cblock->Close(ins, nblock, eblock, ASMIT_BNE);
}
else if (ins->mSrc[li].mTemp >= 0 && ins->mSrc[ri].mTemp >= 0 && ins->mSrc[li].IsPositive() && (op == IA_CMPGES || op == IA_CMPLES))
{
@ -13410,28 +13465,47 @@ void NativeCodeBasicBlock::RelationalOperator(InterCodeProcedure* proc, const In
cblock->mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_TMP + proc->mTempOffset[ins->mSrc[li].mTemp] + 1));
cblock->mIns.Push(NativeCodeInstruction(ins, ASMIT_CMP, ASMIM_ZERO_PAGE, BC_REG_TMP + proc->mTempOffset[ins->mSrc[ri].mTemp] + 1));
cblock->Close(ins, nblock, eblock, ASMIT_BNE);
}
else
{
if (!rconst)
{
mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_TMP + proc->mTempOffset[ins->mSrc[ri].mTemp] + 1));
mIns.Push(NativeCodeInstruction(ins, ASMIT_EOR, ASMIM_IMMEDIATE, 0x80));
mIns.Push(NativeCodeInstruction(ins, ASMIT_STA, ASMIM_ZERO_PAGE, BC_REG_WORK));
}
NativeCodeBasicBlock* sblock = nproc->AllocateBlock();
if (ins->mSrc[li].mTemp < 0)
mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_IMMEDIATE, ((ins->mSrc[li].mIntConst >> 8) & 0xff) ^ 0x80));
if (ins->mSrc[li].mTemp < 0)
mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_IMMEDIATE, (ins->mSrc[li].mIntConst >> 8) & 0xff));
else
mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_TMP + proc->mTempOffset[ins->mSrc[li].mTemp] + 1));
mIns.Push(NativeCodeInstruction(ins, ASMIT_CMP, ASMIM_ZERO_PAGE, BC_REG_TMP + proc->mTempOffset[ins->mSrc[ri].mTemp] + 1));
this->Close(ins, eblock, sblock, ASMIT_BEQ);
sblock->mIns.Push(NativeCodeInstruction(ins, ASMIT_EOR, ASMIM_ZERO_PAGE, BC_REG_TMP + proc->mTempOffset[ins->mSrc[ri].mTemp] + 1));
sblock->Close(ins, nblock, rblock, ASMIT_BPL);
}
else
{
mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_TMP + proc->mTempOffset[ins->mSrc[li].mTemp] + 1));
mIns.Push(NativeCodeInstruction(ins, ASMIT_EOR, ASMIM_IMMEDIATE, 0x80));
}
if (!rconst)
{
mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_TMP + proc->mTempOffset[ins->mSrc[ri].mTemp] + 1));
mIns.Push(NativeCodeInstruction(ins, ASMIT_EOR, ASMIM_IMMEDIATE, 0x80));
mIns.Push(NativeCodeInstruction(ins, ASMIT_STA, ASMIM_ZERO_PAGE, BC_REG_WORK));
}
if (rconst)
mIns.Push(NativeCodeInstruction(ins, ASMIT_CMP, ASMIM_IMMEDIATE, ((iconst >> 8) & 0xff) ^ 0x80));
else
mIns.Push(NativeCodeInstruction(ins, ASMIT_CMP, ASMIM_ZERO_PAGE, BC_REG_WORK));
if (ins->mSrc[li].mTemp < 0)
mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_IMMEDIATE, ((ins->mSrc[li].mIntConst >> 8) & 0xff) ^ 0x80));
else
{
mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_ZERO_PAGE, BC_REG_TMP + proc->mTempOffset[ins->mSrc[li].mTemp] + 1));
mIns.Push(NativeCodeInstruction(ins, ASMIT_EOR, ASMIM_IMMEDIATE, 0x80));
}
if (rconst)
mIns.Push(NativeCodeInstruction(ins, ASMIT_CMP, ASMIM_IMMEDIATE, ((iconst >> 8) & 0xff) ^ 0x80));
else
mIns.Push(NativeCodeInstruction(ins, ASMIT_CMP, ASMIM_ZERO_PAGE, BC_REG_WORK));
cblock->Close(ins, nblock, eblock, ASMIT_BNE);
}
}
}
else
@ -13444,9 +13518,9 @@ void NativeCodeBasicBlock::RelationalOperator(InterCodeProcedure* proc, const In
mIns.Push(NativeCodeInstruction(ins, ASMIT_CMP, ASMIM_IMMEDIATE, (iconst >> 8) & 0xff));
else
mIns.Push(NativeCodeInstruction(ins, ASMIT_CMP, ASMIM_ZERO_PAGE, BC_REG_TMP + proc->mTempOffset[ins->mSrc[ri].mTemp] + 1));
cblock->Close(ins, nblock, eblock, ASMIT_BNE);
}
cblock->Close(ins, nblock, eblock, ASMIT_BNE);
if (ins->mSrc[li].mTemp < 0)
eblock->mIns.Push(NativeCodeInstruction(ins, ASMIT_LDA, ASMIM_IMMEDIATE, ins->mSrc[li].mIntConst & 0xff));
@ -13473,6 +13547,7 @@ void NativeCodeBasicBlock::RelationalOperator(InterCodeProcedure* proc, const In
case IA_CMPGS:
eblock->Close(ins, nblock, nullptr, ASMIT_JMP);
nblock->Close(ins, trueJump, falseJump, ASMIT_BCC);
rblock->Close(ins, trueJump, falseJump, ASMIT_BCS);
break;
case IA_CMPLEU:
case IA_CMPLES:
@ -13480,6 +13555,7 @@ void NativeCodeBasicBlock::RelationalOperator(InterCodeProcedure* proc, const In
case IA_CMPGES:
eblock->Close(ins, nblock, nullptr, ASMIT_JMP);
nblock->Close(ins, falseJump, trueJump, ASMIT_BCC);
rblock->Close(ins, falseJump, trueJump, ASMIT_BCS);
break;
}
@ -51098,7 +51174,7 @@ void NativeCodeProcedure::Compile(InterCodeProcedure* proc)
mInterProc = proc;
mInterProc->mLinkerObject->mNativeProc = this;
CheckFunc = !strcmp(mInterProc->mIdent->mString, "particle_add");
CheckFunc = !strcmp(mInterProc->mIdent->mString, "main");
int nblocks = proc->mBlocks.Size();
tblocks = new NativeCodeBasicBlock * [nblocks];