Don Hinton 629daef4ba [llvm] Add isa_and_nonnull ...

Summary:
Add new ``isa_and_nonnull<>`` operator that works just like
the ``isa<>`` operator, except that it allows for a null pointer as an
argument (which it then returns false).

Reviewers: lattner, aaron.ballman, greened

Reviewed By: lattner

Subscribers: hubert.reinterpretcast, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D60291

llvm-svn: 357761

2019-04-05 13:59:24 +00:00

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