Nico Weber 3a5b1043d0 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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207856 91177308-0d34-0410-b5e6-96231b3b80d8		2014-05-02 18:35:25 +00:00
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IPO	PMBuilder: Expose an option to disable tail calls	2014-04-18 01:05:15 +00:00
Utils	Teach GlobalDCE how to remove empty global_ctor entries.	2014-05-02 18:35:25 +00:00
Instrumentation.h	[C++] Use 'nullptr'. Transforms edition.	2014-04-25 05:29:35 +00:00
IPO.h	Revert "Reapply "LTO: add API to set strategy for -internalize""	2014-04-02 22:05:57 +00:00
ObjCARC.h	Extracted ObjCARC.cpp into its own library libLLVMObjCARCOpts in preparation for refactoring the ARC Optimizer.	2013-01-28 01:35:51 +00:00
Scalar.h	Add an optimization that does CSE in a group of similar GEPs.	2014-05-01 18:38:36 +00:00
Vectorize.h	Allow vectorization of bit intrinsics in BB Vectorizer.	2014-04-25 03:33:48 +00:00