Chandler Carruth cd39f4c2e6 [LCG] Switch the parent SCC tracking from a SmallSetVector to ...

a SmallPtrSet. Currently, there is no need for stable iteration in this
dimension, and I now thing there won't need to be going forward.

If this is ever re-introduced in any form, it needs to not be
a SetVector based solution because removal cannot be linear. There will
be many SCCs with large numbers of parents. When encountering these, the
incremental SCC update for intra-SCC edge removal was quadratic due to
linear removal (kind of).

I'm really hoping we can avoid having an ordering property here at all
though...

llvm-svn: 207091

2014-04-24 09:22:31 +00:00

..

llvm

[LCG] Switch the parent SCC tracking from a SmallSetVector to

2014-04-24 09:22:31 +00:00

llvm-c

Convert getFileOffset to getOffset and move it to its only user.

2014-04-21 13:45:32 +00:00