mozilla/rust — pull request #13628 by alexcrichton (2014-04-19 17:35:30+00:00)
Title: rustc: Ensure closures are "split-stack"

In upgrading LLVM, only rust functions had the "split-stack" attribute added.
This commit changes the addition of LLVM's "split-stack" attribute to *always*
occur and then we remove it sometimes if the "no_split_stack" rust attribute is
present.

Closes #13625