[LLVMdev] Continuing PR5680: preserve order of use lists in bitcode

[Duncan P. N. Exon Smith]

> On 2014-Jul-24, at 20:24, Duncan P. N. Exon Smith <dexonsmith at apple.com> wrote:
> 
> 
>> On 2014-Jul-23, at 18:14, Chandler Carruth <chandlerc at google.com> wrote:
>> 
>> I had a long discussion with Nick about this where he changed several of my core assumptions and feelings about the best way to proceed here. I'd rather he provide his perspective rather me try to repeat it, so poking him on this thread....
> 
> Okay, looking forward to hearing what Nick has to say.

*ping*

The bitcode side of this is essentially finished.  My original plan had
more complex reuse of data structures in `ValueEnumerator`, but the
overhead doesn't seem particularly high so I'm planning to leave it as
is and file a couple of follow-up PRs.

I'll send out a proposal for assembly syntax in a moment.