Jonathan Roelofs 17673ae0b2 [DAG] Fix PR45049: LegalizeTypes crash
Sometimes LegalizeTypes knows about common subexpressions before SelectionDAG
does, leading to accidental SDValue removal before its reference count was
truly zero.

Fixes: https://bugs.llvm.org/show_bug.cgi?id=45049

https://reviews.llvm.org/D76994
2020-04-04 13:36:22 -06:00
..
2020-04-04 00:07:07 +00:00
2020-03-14 18:08:26 -07:00

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