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fdced47a40
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
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| .. | ||
| 2002-07-17-CastRef.ll | ||
| 2002-07-17-ConstantRef.ll | ||
| 2002-08-17-FunctionDGE.ll | ||
| 2002-08-17-WorkListTest.ll | ||
| 2002-09-12-Redeletion.ll | ||
| 2003-07-01-SelfReference.ll | ||
| 2003-10-09-PreserveWeakGlobals.ll | ||
| 2009-01-05-DeadAliases.ll | ||
| 2009-02-17-AliasUsesAliasee.ll | ||
| basicvariabletest.ll | ||
| complex-constantexpr.ll | ||
| externally_available.ll | ||
| global_ctors_integration.ll | ||
| global_ctors.ll | ||
| indirectbr.ll | ||