[PATCH] D157499: [IR] Add dead_on_unwind attribute

[Johannes Doerfert via Phabricator via llvm-commits]

jdoerfert added a comment.

In D157499#4589702 <https://reviews.llvm.org/D157499#4589702>, @nikic wrote:

> I think I'll propose a `writable` or so attribute first, and then return back to this.

We have deref and maybe we want to add modifiers instead. We "have"/"need" deref(globally) anyway, and we can do deref(write) as well.


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