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Fix global register forward mixing up x and y in one case

This commit is contained in:
drmortalwombat 2025-05-25 10:15:47 +02:00
parent 6076808f5e
commit f720feebbf
1 changed files with 8 additions and 4 deletions
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12
oscar64/NativeCodeGenerator.cpp
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@ -17465,7 +17465,7 @@ bool NativeCodeBasicBlock::GlobalLoadStoreForwarding(bool zpage, const NativeCod
mYLSIns.mType = ASMIT_INV;
if (mALSIns.mType != ASMIT_INV && mALSIns.mMode == ASMIM_ABSOLUTE_Y)
mALSIns.mType = ASMIT_INV;
if (mXLSIns.mType != ASMIT_INV && mYLSIns.mMode == ASMIM_ABSOLUTE_Y)
if (mXLSIns.mType != ASMIT_INV && mXLSIns.mMode == ASMIM_ABSOLUTE_Y)
mXLSIns.mType = ASMIT_INV;
}
}
@ -45599,6 +45599,8 @@ bool NativeCodeBasicBlock::PeepHoleOptimizerShuffle(int pass)
}
}
CheckLive();
int shifti = -1, shiftr = -1;
for (int i = 0; i + 2 < mIns.Size(); i++)
{
@ -45620,8 +45622,8 @@ bool NativeCodeBasicBlock::PeepHoleOptimizerShuffle(int pass)
!(mIns[i + 1].mLive & (LIVE_MEM | LIVE_CPU_REG_C)))
{
mIns[shifti].mType = ASMIT_NOP; mIns[shifti].mMode = ASMIM_IMPLIED;
mIns[i + 0].mType = ASMIT_LSR; mIns[i + 0].mMode = ASMIM_IMPLIED;
mIns[i + 1].mType = ASMIT_LDA;
mIns[i + 0].mType = ASMIT_LSR; mIns[i + 0].mMode = ASMIM_IMPLIED; mIns[i + 0].mLive |= LIVE_CPU_REG_C;
mIns[i + 1].mType = ASMIT_LDA; mIns[i + 1].mLive |= LIVE_CPU_REG_C;
mIns.Insert(i + 2, NativeCodeInstruction(mIns[i + 0].mIns, ASMIT_ROL));
shiftr = -1;
changed = true;
@ -45629,6 +45631,7 @@ bool NativeCodeBasicBlock::PeepHoleOptimizerShuffle(int pass)
}
}
CheckLive();
#if 1
for (int i = 0; i < mIns.Size(); i++)
@ -45645,6 +45648,7 @@ bool NativeCodeBasicBlock::PeepHoleOptimizerShuffle(int pass)
//
// shorten x/y register lifetime
CheckLive();
#if 1
//
// move ldx/y down
@ -55272,7 +55276,7 @@ void NativeCodeProcedure::Compile(InterCodeProcedure* proc)
mInterProc->mLinkerObject->mNativeProc = this;
CheckFunc = !strcmp(mIdent->mString, "carvedoors");
CheckFunc = !strcmp(mIdent->mString, "floaters_update");
int nblocks = proc->mBlocks.Size();
tblocks = new NativeCodeBasicBlock * [nblocks];