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6088441f33
llvm-mirror/test/Transforms
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Sanjoy Das 6088441f33 Use a WeakVH for UnknownInstructions in AliasSetTracker 
Summary:
This change solves the same problem as D30726, except that this only
throws out the bathwater.

AST was not correctly tracking and deleting UnknownInstructions via
handles.  The existing code only tracks "pointers" in its
`ASTCallbackVH`, so an UnknownInstruction (that isn't also def'ing a
pointer used by another memory instruction) never gets a
`ASTCallbackVH`.

There are two other ways to solve this problem:

 - Use the `PointerRec` scheme for both known and unknown instructions.
 - Use a `CallbackVH` that erases the offending Instruction from the
   UnknownInstruction list.

Both of the above changes seemed to be significantly (and unnecessarily
IMO) more complex than this.

Reviewers: chandlerc, dberlin, hfinkel, reames

Subscribers: mcrosier, llvm-commits

Differential Revision: https://reviews.llvm.org/D30849

llvm-svn: 297539
2017-03-11 01:15:48 +00:00
..
ADCE
AddDiscriminators Encode duplication factor from loop vectorization and loop unrolling to discriminator. 2017-02-10 21:09:07 +00:00
AlignmentFromAssumptions
ArgumentPromotion Verifier: Disallow a line number without a file in DISubprogram 2017-02-17 23:57:42 +00:00
AtomicExpand
BBVectorize
BDCE
BranchFolding
CodeExtractor
CodeGenPrepare [BypassSlowDivision] Use ValueTracking to simplify run-time checks 2017-03-02 22:12:15 +00:00
ConstantHoisting [Constant Hoisting] Avoid inserting instructions before EH pads 2017-03-01 22:41:12 +00:00
ConstantMerge Don't merge global constants with non-dbg metadata. 2017-03-09 00:03:37 +00:00
ConstProp opt: Rename -default-data-layout flag to -data-layout and make it always override the layout. 2017-02-17 17:36:52 +00:00
Coroutines [coroutines] Add handling for unwind coro.ends 2017-03-07 21:00:54 +00:00
CorrelatedValuePropagation Revert r282872 "CVP. Turn marking adds as no wrap on by default" 2017-02-23 22:29:00 +00:00
CountingFunctionInserter
CrossDSOCFI
DCE
DeadArgElim
DeadStoreElimination [DeadStoreElimination] Check function modref behavior before considering memory clobbered 2017-03-01 14:38:29 +00:00
EarlyCSE
EliminateAvailableExternally
Float2Int
ForcedFunctionAttrs
FunctionAttrs [FunctionAttrs] try to extend nonnull-ness of arguments from a callsite back to its parent function 2017-02-13 23:10:51 +00:00
FunctionImport [ModuleSummaryAnalysis] Don't crash when referencing unnamed globals. 2017-02-22 18:53:38 +00:00
GCOVProfiling
GlobalDCE
GlobalMerge
GlobalOpt Verifier: Disallow a line number without a file in DISubprogram 2017-02-17 23:57:42 +00:00
GlobalSplit Fix one-after-the-end type metadata handling in globalsplit. 2017-03-07 22:18:48 +00:00
GuardWidening
GVN opt: Rename -default-data-layout flag to -data-layout and make it always override the layout. 2017-02-17 17:36:52 +00:00
GVNHoist Handle UnreachableInst in isGuaranteedToTransferExecutionToSuccessor 2017-03-08 01:54:50 +00:00
IndVarSimplify [ValueTracking] Don't do an unchecked shift in ComputeNumSignBits 2017-02-25 20:30:45 +00:00
InferAddressSpaces Bug 31948: Fix assertion when bitcasting constantexpr pointers 2017-02-17 00:32:19 +00:00
InferFunctionAttrs
Inline [PM/Inliner] Make the new PM's inliner process call edges across an 2017-03-09 11:35:40 +00:00
InstCombine AMDGPU: Fix insertion point when reducing load intrinsics 2017-03-10 05:25:49 +00:00
InstMerge
InstSimplify [InstSimplify] allow folds for bool vector div/rem 2017-03-09 21:56:03 +00:00
InterleavedAccess [ARM/AArch64] Support wide interleaved accesses 2017-03-02 15:11:20 +00:00
Internalize
IPConstantProp
IRCE [IRCE] Add a missing invariant check 2017-02-07 23:59:07 +00:00
JumpThreading [JumpThread] Use AA in SimplifyPartiallyRedundantLoad() 2017-03-08 15:22:30 +00:00
LCSSA
LICM Use a WeakVH for UnknownInstructions in AliasSetTracker 2017-03-11 01:15:48 +00:00
LoadCombine [LoadCombine] Change test to not use instcombine. 2017-02-10 00:44:08 +00:00
LoadStoreVectorizer LoadStoreVectorizer: Split even sized illegal chains properly 2017-02-23 03:58:53 +00:00
LoopDataPrefetch
LoopDeletion
LoopDistribute
LoopIdiom
LoopInterchange
LoopLoadElim
LoopPredication Loop predication expand both sides of the widened condition 2017-02-27 15:44:49 +00:00
LoopReroll
LoopRotate [LoopRotate] Propagate dbg.value intrinsics 2017-03-08 09:56:22 +00:00
LoopSimplify [BasicBlockUtils] Use getFirstNonPHIOrDbg to set debugloc for instructions created in SplitBlockPredecessors 2017-02-14 21:10:40 +00:00
LoopSimplifyCFG
LoopStrengthReduce Set option enabling LSR alternative way to resolve complex solution to false. 2017-03-04 03:14:05 +00:00
LoopUnroll [LoopUnrolling] Fix loop size check for peeling 2017-03-07 06:03:15 +00:00
LoopUnswitch Fix a bug when unswitching on partial LIV for SwitchInst 2017-02-27 18:00:13 +00:00
LoopVectorize AMDGPU/SI: Disable unrolling in the loop vectorizer if the loop is not vectorized. 2017-03-09 00:07:00 +00:00
LoopVersioning
LoopVersioningLICM
LowerAtomic
LowerExpectIntrinsic
LowerGuardIntrinsic
LowerInvoke
LowerSwitch
LowerTypeTests IR: Type ID summary extensions for WPD; thread summary into WPD pass. 2017-02-13 19:26:18 +00:00
Mem2Reg
MemCpyOpt
MergeFunc
MetaRenamer
NameAnonGlobals
NaryReassociate
NewGVN NewGVN: Rewrite DCE during elimination so we do it as well as old GVN did. 2017-03-10 00:32:33 +00:00
ObjCARC
PartiallyInlineLibCalls
PGOProfile [PGO] Directory name stripping in global identifier for static functions 2017-02-25 00:00:36 +00:00
PhaseOrdering
PlaceSafepoints
PreISelIntrinsicLowering
PruneEH
Reassociate [Reassociate] Add negated value of negative constant to the Duplicates list. 2017-02-23 18:49:03 +00:00
Reg2Mem
RewriteStatepointsForGC
SafeStack [Fuchsia] Use thread-pointer ABI slots for stack-protector and safe-stack 2017-02-24 03:10:10 +00:00
SampleProfile Remove the sample pgo annotation heuristic that uses call count to annotate basic block count. 2017-03-06 17:49:59 +00:00
Scalarizer
SCCP opt: Rename -default-data-layout flag to -data-layout and make it always override the layout. 2017-02-17 17:36:52 +00:00
SeparateConstOffsetFromGEP
SimplifyCFG opt: Rename -default-data-layout flag to -data-layout and make it always override the layout. 2017-02-17 17:36:52 +00:00
Sink
SLPVectorizer [SLP] Revert everything that has to do with memory access sorting. 2017-03-10 18:59:07 +00:00
SpeculativeExecution
SROA
StraightLineStrengthReduce
StripDeadPrototypes
StripSymbols
StructurizeCFG Revert "Fix PR 24415 (at least), by making our post-dominator tree behavior sane." 2017-03-02 21:08:37 +00:00
TailCallElim
ThinLTOBitcodeWriter ThinLTOBitcodeWriter: Do not follow operand edges of type GlobalValue when looking for virtual functions. 2017-03-02 23:10:17 +00:00
Util PredicateInfo: Support switch statements 2017-02-22 22:20:58 +00:00
WholeProgramDevirt WholeProgramDevirt: Implement export/import support for VCP. 2017-03-10 20:13:58 +00:00