David Majnemer f47d325eec AliasSetTracker: UnknownInsts should contribute to the refcount ... AliasSetTracker::addUnknown may create an AliasSet devoid of pointers just to contain an instruction if no suitable AliasSet already exists. It will then AliasSet::addUnknownInst and we will be done. However, it's possible for addUnknown to choose an existing AliasSet to addUnknownInst. If this were to occur, we are in a bit of a pickle: removing pointers from the AliasSet can cause the entire AliasSet to become destroyed, taking our unknown instructions out with them. Instead, keep track whether or not our AliasSet has any unknown instructions. This fixes PR21582. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222338 91177308-0d34-0410-b5e6-96231b3b80d8		2014-11-19 09:41:05 +00:00
..
ADCE
AddDiscriminators
AlignmentFromAssumptions
ArgumentPromotion
AtomicExpand/ARM
BBVectorize
BranchFolding
CodeExtractor
CodeGenPrepare	[CodeGenPrepare][AArch64] Fix a TLI legality check on iPTR to use a lowered instead.	2014-11-12 22:16:55 +00:00
ConstantHoisting
ConstantMerge
ConstProp
CorrelatedValuePropagation
DeadArgElim
DeadStoreElimination
DebugIR
EarlyCSE	Tweak EarlyCSE to recognize series of dead stores	2014-11-18 17:46:32 +00:00
FunctionAttrs	Normally an 'optnone' function goes through fast-isel, which does not	2014-11-03 18:19:26 +00:00
GCOVProfiling	Relax the gcov version.ll test to check '.' instead of '\*'	2014-11-13 23:07:55 +00:00
GlobalDCE
GlobalOpt
GVN	Revert r222039 because of bot failure.	2014-11-19 00:13:26 +00:00
IndVarSimplify	IndVarSimplify: Allow LFTR to fire more often	2014-11-18 02:20:58 +00:00
Inline	Revert "Transforms: reapply SVN r219899"	2014-11-04 02:02:14 +00:00
InstCombine	InstCombine: Fix another infinite loop caused by visitFPTrunc	2014-11-18 22:06:45 +00:00
InstMerge	Use Alias Analysis to hoist 2 loads from diamond to the common predecessor basic block.	2014-11-02 08:03:05 +00:00
InstSimplify	InstSimplify: Exact shifts of X by Y are X if X has the lsb set	2014-11-05 00:59:59 +00:00
Internalize
IPConstantProp
JumpThreading	Fix a somewhat subtle pair of issues with JumpThreading I introduced in	2014-10-20 05:34:36 +00:00
LCSSA
LICM	AliasSetTracker: UnknownInsts should contribute to the refcount	2014-11-19 09:41:05 +00:00
LoadCombine	Use AA in LoadCombine	2014-11-03 23:19:16 +00:00
LoopDeletion
LoopIdiom
LoopReroll
LoopRotate	llvm/test/Transforms/LoopRotate/nosimplifylatch.ll: Fix possibly mis-repeatedly-pasted test.	2014-10-29 23:05:12 +00:00
LoopSimplify
LoopStrengthReduce
LoopUnroll	[SCEV] Improve Scalar Evolution's use of no {un,}signed wrap flags	2014-10-31 11:40:32 +00:00
LoopUnswitch
LoopVectorize	Addition to r216371 (SLP and Loop Vectorization) and r218607 where	2014-11-11 07:39:27 +00:00
LowerAtomic
LowerExpectIntrinsic
LowerInvoke
LowerSwitch
Mem2Reg
MemCpyOpt
MergeFunc
MetaRenamer
ObjCARC	Add back r222061 with a fix.	2014-11-17 02:28:27 +00:00
PartiallyInlineLibCalls
PhaseOrdering
PruneEH
Reassociate	[Reassociate] Use test cases that can actually be optimized to verify optional	2014-11-18 20:34:01 +00:00
Reg2Mem
SampleProfile	llvm/test/Transforms/SampleProfile/syntax.ll: Relax MISSING-FILE not to	2014-10-30 22:28:46 +00:00
Scalarizer
ScalarRepl
SCCP	SCCP: overdefined calls cannot become constant	2014-11-07 08:54:19 +00:00
SeparateConstOffsetFromGEP/NVPTX	[SeparateConstOffsetFromGEP] Fixed a bug related to unsigned modulo	2014-10-25 18:34:03 +00:00
SimplifyCFG	[SimplifyCFG] Make the value type of the hole check bitmask a power-of-2.	2014-11-17 19:39:56 +00:00
Sink
SLPVectorizer
SROA
StripSymbols
StructurizeCFG
TailCallElim	Revert "Transforms: reapply SVN r219899"	2014-11-04 02:02:14 +00:00
TailDup
Util	[SwitchLowering] Fix the "fixPhis" function.	2014-11-10 21:05:27 +00:00