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
..
Analysis
Assembler
Bindings
Bitcode
BugPoint
CodeGen	DAGCombine: prevent formation of illegal ConstantFP nodes.	2014-05-02 17:25:02 +00:00
DebugInfo	DebugInfo: Correct the attribute type kind.	2014-05-01 18:31:21 +00:00
ExecutionEngine
Feature	[IR] Make {extract,insert}element accept an index of any integer type.	2014-05-01 22:12:39 +00:00
FileCheck
Instrumentation
Integer
JitListener
Linker
LTO
MC	MC: place .file records into the correct section	2014-05-02 17:45:24 +00:00
Object	[llvm-readobj] Add support for Mips specific ELF header e_flags.	2014-05-01 11:07:19 +00:00
Other
TableGen
tools
Transforms	Teach GlobalDCE how to remove empty global_ctor entries.	2014-05-02 18:35:25 +00:00
Unit
Verifier
YAMLParser
.clang-format
CMakeLists.txt
lit.cfg	Don't expect to find fpcmp and PerfectShuffle when running lit tests	2014-04-30 21:26:35 +00:00
lit.site.cfg.in
Makefile
Makefile.tests
TestRunner.sh