[llvm] r179170 - TMP

[Tim Northover]

> Please make commit messages descriptive.  I have no idea what TMP means in
> the context of this modification.

It was another commit mistake, I'm afraid; I wouldn't intentionally
put a message like that in.

Though perhaps the later revert should have had at least a more
descriptive body. I was trying to get it out of the repository before
it caused any damage.

Sorry.

Tim.