FYI to out-of-tree target maintainers: patch requiring attention discussed in llvm-commits

Hi,

Following Evan's recommendation, I'd like to notify maintainers of
out-of-tree targets that a patch is currently being discussed on
llvm-commits (http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20130114/162561.html)
that may affect your target, since it requires targets to explicitly
state the size of the stack slot used to save callee-save registers.

Eli