When destroying a cleanup, kill any references to instructions in the entry
block before deleting it.  Fixes PR7575.

This really just a short-term fix before implementing lazy cleanups.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107676 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed