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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Hello	[Modules] Fix potential ODR violations by sinking the DEBUG_TYPE	2014-04-22 02:55:47 +00:00
InstCombine	Also handle ConstantAggregateZero when optimizing vpermilvar*.	2014-04-29 22:20:40 +00:00
Instrumentation	[C++] Use 'nullptr'.	2014-04-28 04:05:08 +00:00
IPO	Teach GlobalDCE how to remove empty global_ctor entries.	2014-05-02 18:35:25 +00:00
ObjCARC	[C++] Use 'nullptr'.	2014-04-28 04:05:08 +00:00
Scalar	[GVN] Pass the phi-translated address of a load instead of the untranslated	2014-05-02 17:59:17 +00:00
Utils	Teach GlobalDCE how to remove empty global_ctor entries.	2014-05-02 18:35:25 +00:00
Vectorize	Revert r205965, which essentially reverts r205018 for the second time.	2014-05-01 11:24:11 +00:00
CMakeLists.txt	Extracted ObjCARC.cpp into its own library libLLVMObjCARCOpts in preparation for refactoring the ARC Optimizer.	2013-01-28 01:35:51 +00:00
LLVMBuild.txt	Extracted ObjCARC.cpp into its own library libLLVMObjCARCOpts in preparation for refactoring the ARC Optimizer.	2013-01-28 01:35:51 +00:00
Makefile	Extracted ObjCARC.cpp into its own library libLLVMObjCARCOpts in preparation for refactoring the ARC Optimizer.	2013-01-28 01:35:51 +00:00