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prog: add a TODO for hints

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This commit is contained in:
Dmitry Vyukov 2017-10-20 12:12:21 +02:00
parent 54ae9c6db3
commit 5044885ca2
1 changed files with 2 additions and 0 deletions
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2
prog/hints.go
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@ -182,6 +182,8 @@ func shrinkExpand(v uint64, compMap CompMap) uint64Set {
// Replace size least significant bits of v with
// corresponding bits of newV. Leave the rest of v as it was.
replacer := (v &^ mask) | (newV & mask)
// TODO(dvyukov): should we try replacing with arg+/-1?
// This could trigger some off-by-ones.
replacers[replacer] = true
}
}