Chandler Carruth 37508bb842 Finish fixing the SSAUpdater-based AllocaPromoter strategy in SROA to cope with ... the more general set of patterns that are now handled by mem2reg and that we can detect quickly while doing SROA's initial analysis. Notably, this allows it to promote through no-op bitcast and GEP sequences. A core part of the SSAUpdater approach is the ability to test whether a particular instruction is part of the set being promoted. Testing this becomes significantly more complex in the world where the operand to every load and store isn't the alloca itself. I ended up using the approach of walking up the def-chain until we find the alloca. I benchmarked this against keeping a set of pointer operands and keeping a set of the loads and stores we care about, and this one seemed faster although the difference was very small. No test case yet because currently the rewriting always "fixes" the inputs to not require this. The next patch which re-enables early promotion of easy cases in SROA will include a test case that specifically exercises this aspect of the alloca promoter. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188145 91177308-0d34-0410-b5e6-96231b3b80d8		2013-08-11 01:56:15 +00:00
..
ADCE.cpp
BasicBlockPlacement.cpp
CMakeLists.txt	Factor FlattenCFG out from SimplifyCFG	2013-08-06 02:43:45 +00:00
CodeGenPrepare.cpp	Remove trailing whitespace	2013-07-15 17:55:02 +00:00
ConstantProp.cpp
CorrelatedValuePropagation.cpp
DCE.cpp
DeadStoreElimination.cpp
EarlyCSE.cpp
FlattenCFGPass.cpp	Factor FlattenCFG out from SimplifyCFG	2013-08-06 02:43:45 +00:00
GlobalMerge.cpp	Change tabs to spaces.	2013-07-22 21:11:30 +00:00
GVN.cpp	Reimplement isPotentiallyReachable to make nocapture deduction much stronger.	2013-07-27 01:24:00 +00:00
IndVarSimplify.cpp
JumpThreading.cpp	JumpThreading: Turn a select instruction into branching if it allows to thread one half of the select.	2013-08-07 10:29:38 +00:00
LICM.cpp
LLVMBuild.txt
LoopDeletion.cpp	Use SmallVectorImpl& instead of SmallVector to avoid repeating small vector size.	2013-07-14 04:42:23 +00:00
LoopIdiomRecognize.cpp	Fix spelling and grammar	2013-07-22 18:59:58 +00:00
LoopInstSimplify.cpp
LoopRotation.cpp
LoopStrengthReduce.cpp
LoopUnrollPass.cpp
LoopUnswitch.cpp	Adjust file to the coding standard.	2013-08-06 17:03:42 +00:00
LowerAtomic.cpp
Makefile
MemCpyOptimizer.cpp
Reassociate.cpp	Use switch instead of if. No functionality change.	2013-07-22 23:38:16 +00:00
Reg2Mem.cpp
Scalar.cpp	Factor FlattenCFG out from SimplifyCFG	2013-08-06 02:43:45 +00:00
ScalarReplAggregates.cpp	Thread DataLayout through the callers and into mem2reg. This will be	2013-07-28 06:43:11 +00:00
SCCP.cpp	Use SmallVectorImpl& instead of SmallVector to avoid repeating small vector size.	2013-07-14 04:42:23 +00:00
SimplifyCFGPass.cpp	Revert r188119 "Kill some duplicated code for removing unreachable BBs."	2013-08-10 20:16:06 +00:00
Sink.cpp
SROA.cpp	Finish fixing the SSAUpdater-based AllocaPromoter strategy in SROA to cope with	2013-08-11 01:56:15 +00:00
StructurizeCFG.cpp	Add 'const' qualifiers to static const char* variables.	2013-07-16 01:17:10 +00:00
TailRecursionElimination.cpp	TRE: Move class into anonymous namespace.	2013-07-24 16:12:08 +00:00