[PATCH] D148048: ValueTracking: Fix backwards handling of fpclass assumes

[Matt Arsenault via Phabricator via llvm-commits]

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This was a bit confused because nofpclass expresses the opposite
from what an assume of class expresses. We need to assume
the intersection of assumed classes, which also needs to be inverted
to convert to nofpclass.


https://reviews.llvm.org/D148048

Files:
  llvm/lib/Analysis/ValueTracking.cpp
  llvm/test/Transforms/Attributor/nofpclass.ll

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