George Burgess IV 0a451a3606 Fix bugs in the MemorySSA walker. ...

There are a few bugs in the walker that this patch addresses.
Primarily:
- Caching can break when we have multiple BBs without phis
- We weren't optimizing some phis properly
- Because of how the DFS iterator works, there were times where we
  wouldn't cache any results of our DFS

I left the test cases with FIXMEs in, because I'm not sure how much
effort it will take to get those to work (read: We'll probably
ultimately have to end up redoing the walker, or we'll have to come up
with some creative caching tricks), and more test coverage = better.

Differential Revision: http://reviews.llvm.org/D18065


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@264180 91177308-0d34-0410-b5e6-96231b3b80d8

2016-03-23 18:31:55 +00:00

..

AddDiscriminators.cpp

Remove llvm::getDISubprogram in favor of Function::getSubprogram

2016-03-11 02:14:16 +00:00

ASanStackFrameLayout.cpp

Update to use new name alignTo().

2016-01-14 21:06:47 +00:00

BasicBlockUtils.cpp

[LV] Preserve LoopInfo when store predication is used

2016-03-15 18:06:20 +00:00

BreakCriticalEdges.cpp

TransformUtils: Remove implicit ilist iterator conversions, NFC

2015-10-13 02:39:05 +00:00

BuildLibCalls.cpp

Fix Clang-tidy readability-redundant-control-flow warnings; other minor fixes.

2016-02-02 18:20:45 +00:00

BypassSlowDivision.cpp

Clarify that the bypassSlowDivision optimization operates on a single BB [v2]

2016-01-04 23:18:58 +00:00

CloneFunction.cpp

Revert revisions 262636, 262643, 262679, and 262682.

2016-03-08 00:36:35 +00:00

CloneModule.cpp

[Cloning] Clone every Function's Debug Info

2016-02-13 02:04:29 +00:00

CMakeLists.txt

[ThinLTO] Move global processing from Linker to TransformUtils (NFC)

2016-02-10 18:11:31 +00:00

CmpInstAnalysis.cpp

[C++] Use 'nullptr'. Transforms edition.

2014-04-25 05:29:35 +00:00

CodeExtractor.cpp

[IR] Reformulate LLVM's EH funclet IR

2015-12-12 05:38:55 +00:00

CtorUtils.cpp

TransformUtils: Remove implicit ilist iterator conversions, NFC

2015-10-13 02:39:05 +00:00

DemoteRegToStack.cpp

TransformUtils: Remove implicit ilist iterator conversions, NFC

2015-10-13 02:39:05 +00:00

Evaluator.cpp

Add #include "llvm/Support/raw_ostream.h" to fix Windows build.

2016-02-03 03:16:37 +00:00

FlattenCFG.cpp

LPM: Stop threading Pass * through all of the loop utility APIs. NFC

2015-12-15 19:40:57 +00:00

FunctionImportUtils.cpp

Rework linkInModule(), making it oblivious to ThinLTO

2016-03-19 00:40:31 +00:00

GlobalStatus.cpp

GlobalOpt does not treat externally_initialized globals correctly

2015-10-12 13:20:52 +00:00

InlineFunction.cpp

Introduce @llvm.experimental.deoptimize

2016-03-11 19:08:34 +00:00

InstructionNamer.cpp

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

IntegerDivision.cpp

TransformUtils: Avoid getNodePtrUnchecked() in integer division, NFC

2016-02-21 20:14:29 +00:00

LCSSA.cpp

[AA] Preserve the AA results wrapper pass as well as BasicAA in a few

2016-02-19 03:12:14 +00:00

LLVMBuild.txt

[PM/AA] Remove the last relics of the separate IPA library from LLVM,

2015-08-18 17:51:53 +00:00

Local.cpp

ADT: Remove == and != comparisons between ilist iterators and pointers

2016-02-21 20:39:50 +00:00

LoopSimplify.cpp

[LoopSimplify] Reuse changeToUnreachable

2016-01-24 19:32:52 +00:00

LoopUnroll.cpp

Use some braces to format this a little better.

2016-03-15 03:01:31 +00:00

LoopUnrollRuntime.cpp

[SCEVExpander] Make findExistingExpansion smarter

2016-02-16 06:46:58 +00:00

LoopUtils.cpp

[LoopUtils, LV] Fix PR26734

2016-03-03 16:12:01 +00:00

LoopVersioning.cpp

[LoopVersioning] Relax an assert for LCSSA PHIs

2016-03-22 18:38:15 +00:00

LowerInvoke.cpp

TransformUtils: Remove implicit ilist iterator conversions, NFC

2015-10-13 02:39:05 +00:00

LowerSwitch.cpp

TransformUtils: Remove implicit ilist iterator conversions, NFC

2015-10-13 02:39:05 +00:00

Mem2Reg.cpp

[Mem2Reg] Respect optnone

2015-12-11 13:36:59 +00:00

MemorySSA.cpp

Fix bugs in the MemorySSA walker.

2016-03-23 18:31:55 +00:00

MetaRenamer.cpp

Whoops, remove trailing whitespace.

2015-08-27 05:37:12 +00:00

ModuleUtils.cpp

[ModuleUtils] Use range-based loop. NFC.

2016-03-23 00:43:35 +00:00

PromoteMemoryToRegister.cpp

Remove uses of builtin comma operator.

2016-02-18 22:09:30 +00:00

SanitizerStats.cpp

Fix Clang-tidy modernize-use-nullptr and modernize-use-override warnings; other minor fixes.

2016-01-26 18:48:36 +00:00

SimplifyCFG.cpp

propagate 'unpredictable' metadata on select instructions

2016-03-17 15:30:52 +00:00

SimplifyIndVar.cpp

[IndVars] Make the fix for PR26973 more obvious; NFCI

2016-03-18 20:37:11 +00:00

SimplifyInstructions.cpp

[Utils] Put includes in correct order. NFC.

2015-11-24 18:57:06 +00:00

SimplifyLibCalls.cpp

[SimplifyLibCalls] Only consider sinpi/cospi functions within the same function

2016-03-19 04:53:02 +00:00

SplitModule.cpp

Avoid overly large SmallPtrSet/SmallSet

2016-01-30 01:24:31 +00:00

SSAUpdater.cpp

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

SymbolRewriter.cpp

Make some headers self-contained, remove unused includes that violate layering.

2016-01-27 16:05:37 +00:00

UnifyFunctionExitNodes.cpp

TransformUtils: Remove implicit ilist iterator conversions, NFC

2015-10-13 02:39:05 +00:00

Utils.cpp

This patch adds MemorySSA to LLVM.

2016-02-02 22:46:49 +00:00

ValueMapper.cpp

Split resolveCycles(bool AllowTemps) into two interfaces and document

2016-01-11 21:37:41 +00:00