Files
clang-p2996/llvm/lib/Transforms/Utils
Nico Weber 4b2acde21a Teach GlobalDCE how to remove empty global_ctor entries.
This moves most of GlobalOpt's constructor optimization
code out of GlobalOpt into Transforms/Utils/CDtorUtils.{h,cpp}. The
public interface is a single function OptimizeGlobalCtorsList() that
takes a predicate returning which constructors to remove.

GlobalOpt calls this with a function that statically evaluates all
constructors, just like it did before. This part of the change is
behavior-preserving.

Also add a call to this from GlobalDCE with a filter that removes global
constructors that contain a "ret" instruction and nothing else – this
fixes PR19590.

llvm-svn: 207856
2014-05-02 18:35:25 +00:00
..
2014-04-29 07:35:33 +00:00
2014-04-28 04:05:08 +00:00
2014-04-28 04:05:08 +00:00