[LLVMdev] bug of tail call optimization on x86 target

[Tim Northover]

Hi Katsuhiro,

> I rewrote my fix and made a test case according to your suggestion.
> All of them are included in the attached file.

Thanks very much for doing that and taking the time in the first place
to make the patch. It looked good to me so I committed it in r187703.

It'll automatically make its way into the 3.4 release later this year.

Cheers.

Tim.