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
..
2003-02-26-LoopExitNotDominated.ll
2003-02-27-NestedLoopExitBlocks.ll
2003-02-27-PreheaderExitNodeUpdate.ll
2003-02-27-PreheaderProblem.ll
2003-02-27-StoreSinkPHIs.ll
2003-02-28-PromoteDifferentType.ll
2003-05-02-LoadHoist.ll
2003-12-11-SinkingToPHI.ll
2004-09-14-AliasAnalysisInvalidate.ll
2004-11-17-UndefIndexCrash.ll
2006-09-12-DeadUserOfSunkInstr.ll
2007-05-22-VolatileSink.ll
2007-07-30-AliasSet.ll
2007-09-17-PromoteValue.ll
2007-09-24-PromoteNullValue.ll
2007-10-01-PromoteSafeValue.ll
2008-05-20-AliasSetVAArg.ll
2008-07-22-LoadGlobalConstant.ll
2009-12-10-LICM-Indbr-Crash.ll
2011-04-06-HoistMissedASTUpdate.ll
2011-04-06-PromoteResultOfPromotion.ll	TBAA: handle scalar TBAA format and struct-path aware TBAA format.	2013-09-27 18:34:27 +00:00
2011-04-09-RAUW-AST.ll
2011-07-06-Alignment.ll
2014-09-10-doFinalizationAssert.ll	Fix assertion in LICM doFinalization()	2014-09-24 16:48:31 +00:00
atomics.ll	Catch more CHECK that can be converted to CHECK-LABEL in Transforms for easier debugging. No functionality change.	2013-07-14 01:50:49 +00:00
basictest.ll
crash.ll
debug-value.ll	Revert "Revert "DI: Fold constant arguments into a single MDString""	2014-10-03 20:01:09 +00:00
extra-copies.ll	[LICM] Don't create more than one copy of an instruction per loop exit block when sinking.	2014-06-25 07:54:58 +00:00
hoist-bitcast-load.ll	Look through addrspacecast when checking isDereferenceablePointer	2014-07-14 18:54:12 +00:00
hoist-deref-load.ll	Make Value::isDereferenceablePointer handle offsets to pointer types with dereferenceable attributes	2014-07-19 03:25:16 +00:00
hoist-invariant-load.ll	Revert the test moves from 176733. Use "REQUIRES: asserts" instead.	2013-03-12 16:27:52 +00:00
hoisting.ll	Catch more CHECK that can be converted to CHECK-LABEL in Transforms for easier debugging. No functionality change.	2013-07-14 01:50:49 +00:00
lcssa-ssa-promoter.ll	[LPM] Apply a really big hammer to fix PR18688 by recursively reforming	2014-02-01 13:35:14 +00:00
no-preheader-test.ll
PR19798.ll	LICM: Don't crash when an instruction is used by an unreachable BB	2014-09-02 16:22:00 +00:00
PR21582.ll	AliasSetTracker: UnknownInsts should contribute to the refcount	2014-11-19 09:41:05 +00:00
Preserve-LCSSA.ll
promote-order.ll	TBAA: handle scalar TBAA format and struct-path aware TBAA format.	2013-09-27 18:34:27 +00:00
scalar_promote.ll	[LPM] Make LCSSA a utility with a FunctionPass that applies it to all	2014-01-25 04:07:24 +00:00
scalar-promote-memmodel.ll
sinking.ll	[LPM] Switch LICM to actively use LCSSA in addition to preserving it.	2014-02-11 12:52:27 +00:00
speculate.ll	Analysis: Make isSafeToSpeculativelyExecute fire less for divides	2014-11-04 23:49:08 +00:00
volatile-alias.ll	Fix broken CHECK lines.	2014-01-11 21:06:00 +00:00