Florian Hahn a80b6c1542 [Local] Handle terminators with users in removeUnreachableBlocks. ...

Terminators like invoke can have users outside the current basic block.
We have to replace those users with undef, before replacing the
terminator.

This fixes a crash exposed by rL373430.

Reviewers: brzycki, asbirlea, davide, spatel

Reviewed By: asbirlea

Differential Revision: https://reviews.llvm.org/D68327

llvm-svn: 373513

2019-10-02 19:38:24 +00:00

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