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Daniel Berlin 1ea5f324bd NewGVN: Fix bug exposed by PR31761 
Summary:
This does not actually fix the testcase in PR31761 (discussion is
ongoing on the testcase), but does fix a bug it exposes, where stores
were not properly clobbering loads.

We accomplish this by unifying the memory equivalence infratructure
back into the normal congruence infrastructure, and then properly
destroying congruence classes when memory state leaders disappear.

Reviewers: davide

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D29195

llvm-svn: 293216
 		2017-01-26 22:21:48 +00:00
..
ADCE [ADCE] Add code to remove dead branches 2016-12-13 16:42:18 +00:00
AddDiscriminators Introduce updateDiscriminator interface to DILocation to make it cleaner assigning discriminators. 2016-10-26 15:48:45 +00:00
AlignmentFromAssumptions
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ArgumentPromotion
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AtomicExpand
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BBVectorize Introduce -unroll-partial-threshold to separate PartialThreshold from Threshold in loop unorller. 2017-01-17 23:39:33 +00:00
BDCE [BDCE] Skip metadata while replacing uses. 2016-12-07 21:47:32 +00:00
BranchFolding
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CodeExtractor
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CodeGenPrepare [Analysis] Centralize objectsize lowering logic. 2016-12-20 23:46:36 +00:00
ConstProp [InstCombiner] Simplify lib calls to `round{,f}` 2016-12-26 14:29:29 +00:00
ConstantHoisting
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ConstantMerge
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Coroutines [coroutines] Spill the result of the invoke instruction correctly 2017-01-25 02:25:54 +00:00
CorrelatedValuePropagation Revert @llvm.assume with operator bundles (r289755-r289757) 2016-12-19 08:22:17 +00:00
CountingFunctionInserter Add a counter-function insertion pass 2016-09-01 09:42:39 +00:00
CrossDSOCFI
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DCE llvm/test/Transforms/DCE/calls-errno.ll: Suppress checking @pow(+0,-1). 2016-11-04 18:50:45 +00:00
DeadArgElim DeadArgElim: Don't mark swifterror arguments as unused 2016-09-21 15:29:08 +00:00
DeadStoreElimination
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EarlyCSE [EarlyCSE] Don't DSE across readnone functions that may throw 2017-01-17 20:15:47 +00:00
EliminateAvailableExternally
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Float2Int
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ForcedFunctionAttrs
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FunctionAttrs IR, X86: Understand !absolute_symbol metadata on global variables. 2016-12-08 19:01:00 +00:00
FunctionImport [ThinLTO] Ensure callees get hot threshold when first seen on cold path 2016-12-15 18:21:01 +00:00
GCOVProfiling [IR] Remove the DIExpression field from DIGlobalVariable. 2016-12-20 02:09:43 +00:00
GVN [AliasAnalysis] Fences do not modify constant memory location 2017-01-20 00:21:33 +00:00
GVNHoist Remove the load hoisting code of MLSM, it is completely subsumed by GVNHoist 2017-01-24 19:55:36 +00:00
GlobalDCE [PH] Replace uses of AssertingVH from members of analysis results with 2017-01-24 12:55:57 +00:00
GlobalMerge Renumber testcase metadata nodes after r290153. 2016-12-22 00:45:21 +00:00
GlobalOpt Fix some broken CHECK lines. 2017-01-22 20:28:56 +00:00
GlobalSplit [GlobalSplit] Port to the new pass manager. 2016-11-21 00:28:23 +00:00
GuardWidening
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IPConstantProp
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IRCE [IRCE] Avoid loop optimizations on pre and post loops 2016-12-13 21:05:21 +00:00
IndVarSimplify [IndVars] Change the order to compute WidenAddRec in widenIVUse. 2016-11-15 17:34:52 +00:00
InferFunctionAttrs [InferAttributes] Don't access parameters that don't exist. 2016-09-20 23:10:31 +00:00
Inline [PH] Replace uses of AssertingVH from members of analysis results with 2017-01-24 12:55:57 +00:00
InstCombine [InstCombine] fold (X >>u C) << C --> X & (-1 << C) 2017-01-26 22:08:10 +00:00
InstMerge Remove the load hoisting code of MLSM, it is completely subsumed by GVNHoist 2017-01-24 19:55:36 +00:00
InstSimplify [ValueTracking] Implement SignBitMustBeZero correctly for sqrt. 2017-01-26 00:10:26 +00:00
InterleavedAccess/X86 Add a pass to optimize patterns of vectorized interleaved memory accesses for 2016-10-14 18:20:41 +00:00
Internalize
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JumpThreading [PM] Replace the hard invalidate in JumpThreading for LVI with correct 2017-01-23 08:33:24 +00:00
LCSSA
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LICM Mark @llvm.powi.* as safe to speculatively execute. 2017-01-25 09:32:30 +00:00
LoadCombine
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LoadStoreVectorizer [LoadStoreVectorizer] Enable vectorization of stores in the presence of an aliasing load 2016-11-23 17:43:15 +00:00
LoopDataPrefetch [PM] Port LoopDataPrefetch AArch64 tests to new pass manager 2016-08-22 12:59:58 +00:00
LoopDeletion [PM] Teach LoopDeletion to correctly update the LPM when loops are 2017-01-18 02:41:26 +00:00
LoopDistribute Move test of lazy BFI with ORE to a generic directory 2017-01-13 00:16:23 +00:00
LoopIdiom Fix some broken CHECK lines. 2017-01-22 20:28:56 +00:00
LoopInterchange [LoopInterchange] Track all dependencies, not just anti dependencies. 2016-09-21 19:16:47 +00:00
LoopLoadElim Fix LoopLoadElimination to keep original alignment on the inital hoisted store 2017-01-06 21:06:51 +00:00
LoopPredication [Guards] Introduce loop-predication pass 2017-01-25 16:00:44 +00:00
LoopReroll [LoopReroll] Make root-finding more aggressive. 2016-11-21 22:35:34 +00:00
LoopRotate Revert @llvm.assume with operator bundles (r289755-r289757) 2016-12-19 08:22:17 +00:00
LoopSimplify Make a test actually test what it set out to test. 2017-01-12 03:49:07 +00:00
LoopSimplifyCFG
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LoopStrengthReduce This test apparently requires an x86 target and is failing on numerous 2017-01-23 08:33:29 +00:00
LoopUnroll [PM] Simplify the new PM interface to the loop unroller and expose two 2017-01-26 02:13:50 +00:00
LoopUnswitch [Loop Unswitch] Patch to selective unswitch only the reachable branch instructions. 2016-11-25 14:07:44 +00:00
LoopVectorize [LV] Fix an issue where forming LCSSA in the place that we did would 2017-01-26 10:41:09 +00:00
LoopVersioning [LDist] Match behavior between invoking via optimization pipeline or opt -loop-distribute 2016-12-21 04:07:40 +00:00
LoopVersioningLICM [Loop Vectorizer] Fixed memory confilict checks. 2016-08-28 08:53:53 +00:00
LowerAtomic
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LowerExpectIntrinsic [Profile] handle select instruction in 'expect' lowering 2016-09-02 22:03:40 +00:00
LowerGuardIntrinsic
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LowerInvoke
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LowerSwitch
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LowerTypeTests LowerTypeTests: Ignore external globals with type metadata. 2017-01-26 00:32:15 +00:00
Mem2Reg
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MemCpyOpt [MemCpyOpt] Don't sink LoadInst below possible clobber. 2016-12-27 17:58:12 +00:00
MergeFunc MergeFunctions: Preserve debug info in thunks, under option -mergefunc-preserve-debug-info 2017-01-21 02:02:56 +00:00
MetaRenamer
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NameAnonGlobals [ThinLTO] Ensure anonymous globals renamed even at -O0 2016-09-17 20:40:16 +00:00
NaryReassociate Revert @llvm.assume with operator bundles (r289755-r289757) 2016-12-19 08:22:17 +00:00
NewGVN NewGVN: Fix bug exposed by PR31761 2017-01-26 22:21:48 +00:00
ObjCARC [ObjCARC] Traverse chain downwards to replace uses of argument passed to 2016-09-13 23:43:11 +00:00
PGOProfile Fix some broken CHECK lines. 2017-01-22 20:28:56 +00:00
PartiallyInlineLibCalls Add positive test for sqrt "partial inlining". NFC. 2017-01-04 21:24:56 +00:00
PhaseOrdering
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PlaceSafepoints
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PreISelIntrinsicLowering
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PruneEH [PruneEH] Be correct in the face IPO 2016-10-03 19:35:30 +00:00
Reassociate Fixed the lost FastMathFlags in Reassociate optimization. 2016-11-22 20:23:04 +00:00
Reg2Mem
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RewriteStatepointsForGC [RS4GC] Strengthen coverage: add more tests 2016-10-07 20:34:00 +00:00
SCCP [SCCP] Teach the pass how to handle `div` with overdefined operands. 2017-01-19 23:07:51 +00:00
SLPVectorizer [SLP] Add one more reduction operation for extra argument test to make 2017-01-26 09:18:41 +00:00
SROA [DIExpression] Introduce a dedicated DW_OP_LLVM_fragment operation 2016-12-05 18:04:47 +00:00
SafeStack [safestack] Use non-thread-local unsafe stack pointer for Contiki OS 2016-10-14 17:56:00 +00:00
SampleProfile Explicitly promote indirect calls before sample profile annotation. 2017-01-24 21:05:51 +00:00
Scalarizer
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SeparateConstOffsetFromGEP
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SimplifyCFG [SimplifyCFG] Do not sink and merge inline-asm instructions. 2017-01-25 06:21:51 +00:00
Sink
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SpeculativeExecution SpeculativeExecution: Allow speculating more inst types 2016-10-28 20:00:33 +00:00
StraightLineStrengthReduce
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StripDeadPrototypes
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StripSymbols Renumber testcase metadata nodes after r290153. 2016-12-22 00:45:21 +00:00
StructurizeCFG [StructurizeCfg] Update dominator info. 2017-01-10 02:50:47 +00:00
TailCallElim Avoid tail recursion elimination across calls with operand bundles 2016-11-07 21:01:49 +00:00
ThinLTOBitcodeWriter ThinLTOBitcodeWriter: Clear comdats on filtered globals. 2017-01-18 20:03:02 +00:00
Util [MemorySSA] Add new tests for invariant.groups 2017-01-23 16:38:10 +00:00
WholeProgramDevirt WholeProgramDevirt: Teach the pass to handle structs of arrays. 2016-12-09 01:10:11 +00:00