tree a76fab99c72109a1b2a159121954ea73f3358fac
parent 45b5c79a31d05edb179efeda9305e6c42be4f818
author Roman Lebedev <lebedev.ri@gmail.com> 1593882268 +0300
committer Roman Lebedev <lebedev.ri@gmail.com> 1593885996 +0300
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[Utils] Make -assume-builder/-assume-simplify actually work on Old-PM

clang w/ old-pm currently would simply crash
when -mllvm  -enable-knowledge-retention=true is specified.

Clearly, these two passes had no Old-PM test coverage,
which would have shown the problem - not requiring AssumptionCacheTracker,
but then trying to always get it.

Also, why try to get domtree only if it's cached,
but at the same time marking it as required?