[GR-44099] Optimize card table scanning. #5963
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...m.core.genscavenge/src/com/oracle/svm/core/genscavenge/remset/AlignedChunkRememberedSet.java
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| cardPos = cardPos.subtract(wordSize()); | ||
| while (cardPos.aboveOrEqual(cardTableStart) && ((UnsignedWord) cardPos.readWord(0)).equal(CardTable.CLEAN_WORD)) { | ||
| cardPos = cardPos.subtract(wordSize()); | ||
| } |
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A do-while loop would be incorrect because there is no guarantee that the whole word is clean.
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