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Summary: Before this change, personality directives were not emitted if there was no invoke left in the function (of course until recently this also meant that we couldn't know what the personality actually was). This patch forces personality directives to still be emitted, unless it is known to be a noop in the absence of invokes, or the user explicitly specified `nounwind` (and not `uwtable`) on the function. Reviewers: majnemer, rnk Subscribers: rnk, llvm-commits Differential Revision: http://reviews.llvm.org/D10884 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242185 91177308-0d34-0410-b5e6-96231b3b80d8
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