Upgrade LLVM to support ARM split stacks and unwinding#5612

Merged

brson merged 6 commits intorust-lang:incomingfrom brson:llvm

Apr 11, 2013

+95-54

Commits on Apr 11, 2013

Update LLVM for ARM changes
brson
committed
rustllvm: followup latest LLVM

yichoi
authored and
brson
committed
rust morestack assembly for arm

ILyoan
authored and
brson
committed
FIX meta_section_name for macos

ILyoan
authored and
brson
committed
rustllvm: Initialize target analysis passes
brson
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add unwind information on morestack

ILyoan
authored and
brson
committed