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Fix lingering branch in idle loop elimination

This commit is contained in:
drmortalwombat 2022-09-14 08:21:53 +02:00
parent 03b5a0655a
commit 31dfc702ab
1 changed files with 18 additions and 1 deletions
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19
oscar64/NativeCodeGenerator.cpp
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@ -12258,6 +12258,8 @@ bool NativeCodeBasicBlock::MoveAccuTrainDown(int end, int start)
return false;
}
}
return false;
}
bool NativeCodeBasicBlock::MoveAccuTrainsDown(void)
@ -21456,7 +21458,7 @@ bool NativeCodeBasicBlock::OptimizeInnerLoops(NativeCodeProcedure* proc)
NativeCodeBasicBlock* tail = CollectInnerLoop(this, lblocks);
if (tail)
if (tail && this != tail)
changed = OptimizeInnerLoop(proc, this, tail, lblocks);
}
@ -28146,6 +28148,21 @@ bool NativeCodeBasicBlock::PeepHoleOptimizer(NativeCodeProcedure* proc, int pass
changed = true;
}
if (sz == 1 && mBranch == ASMIT_BNE && mTrueJump == this)
{
if (mIns[0].mType == ASMIT_DEX || mIns[0].mType == ASMIT_INX)
{
mIns[0] = NativeCodeInstruction(ASMIT_LDX, ASMIM_IMMEDIATE, 0);
changed = true;
}
else if (mIns[0].mType == ASMIT_DEY || mIns[0].mType == ASMIT_INY)
{
mIns[0] = NativeCodeInstruction(ASMIT_LDY, ASMIM_IMMEDIATE, 0);
changed = true;
}
}
#endif
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