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Fix integer range loss in loop index reduction

This commit is contained in:
drmortalwombat 2025-03-15 17:59:45 +01:00
parent bedafe7b6f
commit fefb511404
1 changed files with 5 additions and 0 deletions
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5
oscar64/InterCode.cpp
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@ -15915,6 +15915,11 @@ bool InterCodeBasicBlock::SingleTailLoopOptimization(const NumberSet& aliasedPar
ains->mSrc[0].mIntConst = s; ains->mSrc[0].mIntConst = s;
tail->AppendBeforeBranch(ains); tail->AppendBeforeBranch(ains);
if (s > 0)
ains->mDst.mRange.mMaxValue += s;
else
ains->mDst.mRange.mMinValue += s;
indexScale[ains->mDst.mTemp] = s; indexScale[ains->mDst.mTemp] = s;
modified = true; modified = true;