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54956
2018 Dec 12
2
The bit pattern after stripPointerCasts()
...re
because the stripPointerCasts function is more restrictive. We might
lose performance though. Solution two will not disturb any existing code
but we might need to revisit the uses of stripPointerCasts to fix
existing bugs.
Suggestions welcome!
Thanks,
Johannes
[0] https://reviews.llvm.org/D54956?vs=on&id=175572&whitespace=ignore-most#inline-485807
[1] LazyValueInfo::getPredicateAt() line ~1714, isKnownNull(...) is used
after the stripPointerCasts() function might have changed the bit
pattern (and thereby the null-ness).
--
Johannes Doerfert
Researcher
Argonne National...