Fix an issue where assignments that caused a Sm...
Move some sets and maps to SmallPtrSet and Dens...
Change ValueTable to use a DenseMap for mapping...
Remember to free the heap allocated array if we...
Make val_replace fail early, which reduces the ...
Fix a bug where we were marking GEP expressions...
Have DenseMap auto-shrink itself on clear(). T...
Make the heuristic for shrinking DenseMap smarter.