SetVector documentation needs to be updated WRT default data structures used.

[llvmbot]

Bugzilla Link	11103
Resolution	FIXED
Resolved on	Oct 11, 2011 01:34
Version	trunk
OS	All
Attachments	Patch to fix documentation
Reporter	LLVM Bugzilla Contributor

Extended Description

(I tried sending an email to llvm-commits with this patch last month, but I don't know if I was following the right process as I did not hear anything back)

Since r33854, SetVectors have defaulted to size 16 SmallSets, but the
Programmer's Manual still says it uses an std:set.

This brings it to a single malloc for the std::vector, so I'm not sure if it should still be called "quite expensive", but I'll let someone else make the call.

[llvmbot]

Applied with some formatting changes here: r141648

Thanks!