mozilla/rust — pull request #5612 by brson (2013-03-29 00:24:31+00:00)
Title: Upgrade LLVM to support ARM split stacks and unwinding

This branch fixes #5368 and #4489 and supersedes #5327. Since it's so difficult to complete LLVM upgrades and this isn't going to have much time to bake before 0.6 I want to hold off on merging it.