[llvm] r214318 - Rename llvm-uselistorder => verify-uselistorder

[Duncan P. N. Exon Smith]

> On 2014-Jul-31, at 11:39, Sean Silva <chisophugis at gmail.com> wrote:
> 
> Ok, I guess that's not a problem. I guess it's sort of weird to see an option like -num-shuffles being used like this. Why not just test 1 shuffle? or 10? Testing 5 "random" shuffles just so that it tests the same 5 shuffles every time doesn't seem very productive. If it's going to test 5 deterministic shuffles then it should at least check 5 specific shuffles like reverse, pipe organ, interleave, etc.

A given use-list isn't guaranteed to be changed.  Shuffling more times
makes it more likely use-lists get changed.

> At the very least, the number "5" should not be on every RUN line if it is just some arbitrary default number of shuffles to try and has no reason to vary from test to test.

Larger testcases should shuffle more times, so that it's statistically
likely that every use-list actually gets changed at least once.

However, 1 is a pretty bad default (since every other 2-element list
won't et changed).  Since all the testcases are pretty small, I've
changed the default to 5 in r214419.

> This would be great to add to the top-of-file comment in the .cpp file.

Also r214419.