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Anna Thomas d63d59a787 [LICM] Hoist loads that are dominated by invariant.start intrinsic, and are invariant in the loop. 
Summary:
We can hoist out loads that are dominated by invariant.start, to the preheader.
We conservatively assume the load is variant, if we see a corresponding
use of invariant.start (it could be an invariant.end or an escaping
call).

Reviewers: mkuper, sanjoy, reames

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D29331

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@293887 91177308-0d34-0410-b5e6-96231b3b80d8
2017-02-02 13:22:03 +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
[PM] Port AlignmentFromAssumptions to the new PM.
2016-06-15 06:18:01 +00:00
ArgumentPromotion
Remove the ScalarReplAggregates pass
2016-06-15 00:19:09 +00:00
AtomicExpand
Support expanding partial-word cmpxchg to full-word cmpxchg in AtomicExpandPass.
2016-06-17 18:11:48 +00:00
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
Move branch folding test to a better location.
2015-12-03 19:41:25 +00:00
CodeExtractor
CodeExtractor : Add ability to preserve profile data.
2016-08-02 02:15:45 +00:00
CodeGenPrepare
[Analysis] Centralize objectsize lowering logic.
2016-12-20 23:46:36 +00:00
ConstantHoisting
This implements a more optimal algorithm for selecting a base constant in
2016-07-14 07:44:20 +00:00
ConstantMerge
[PM] Port ConstantMerge to the new pass manager.
2016-05-05 00:51:09 +00:00
ConstProp
[InstCombiner] Simplify lib calls to round{,f}
2016-12-26 14:29:29 +00:00
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
[PM] Port CrossDSOCFI to the new pass manager.
2016-07-09 03:25:35 +00:00
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
[DSE] Don't remove stores made live by a call which unwinds.
2016-08-12 01:09:53 +00:00
EarlyCSE
[EarlyCSE] Don't DSE across readnone functions that may throw
2017-01-17 20:15:47 +00:00
EliminateAvailableExternally
[PM] Port EliminateAvailableExternally pass to the new pass manager.
2016-05-05 02:37:32 +00:00
Float2Int
[PM] Port float2int to the new pass manager
2016-06-24 23:32:02 +00:00
ForcedFunctionAttrs
[attrs] Split off the forced attributes utility into its own pass that
2015-12-27 08:13:45 +00:00
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
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
[GuardWidening] Fix incorrect use of remove_if
2016-05-21 02:24:44 +00:00
GVN
Do not propagate DebugLoc across basic blocks
2017-01-31 20:57:13 +00:00
GVNHoist
Remove the load hoisting code of MLSM, it is completely subsumed by GVNHoist
2017-01-24 19:55:36 +00:00
IndVarSimplify
[IndVars] Change the order to compute WidenAddRec in widenIVUse.
2016-11-15 17:34:52 +00:00
InferAddressSpaces
InferAddressSpaces: Handle more cases with constant select operands
2017-02-02 03:37:22 +00:00
InferFunctionAttrs
[InferAttributes] Don't access parameters that don't exist.
2016-09-20 23:10:31 +00:00
Inline
[Inliner] Fold analysis remarks into missed remarks
2017-01-30 16:22:45 +00:00
InstCombine
fix typos; NFC
2017-02-01 21:38:32 +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] remove a FIXME for something we don't want to do; NFC
2017-02-01 22:27:34 +00:00
InterleavedAccess
InterleaveAccessPass: Avoid constructing invalid shuffle masks
2017-01-31 18:37:53 +00:00
Internalize
[Internalize] Test that __stack_chk_{guard, fail} are not internalized.
2016-06-05 19:08:54 +00:00
IPConstantProp
[IPSCCP] Restore the old behaviour (pre r293799).
2017-02-02 00:46:54 +00:00
IRCE
[IRCE] Avoid loop optimizations on pre and post loops
2016-12-13 21:05:21 +00:00
JumpThreading
[PM] Replace the hard invalidate in JumpThreading for LVI with correct
2017-01-23 08:33:24 +00:00
LCSSA
Revert "Revert r275883 and r275891. They seem to cause PR28608."
2016-07-20 01:55:27 +00:00
LICM
[LICM] Hoist loads that are dominated by invariant.start intrinsic, and are invariant in the loop.
2017-02-02 13:22:03 +00:00
LoadCombine
[LoadCombine] Combine Loads formed from GEPS with negative indexes
2016-06-19 06:14:56 +00:00
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
[PM] Port LoopLoadElimination to the new pass manager and wire it into
2017-01-27 01:32:26 +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
LPM: Drop require<loops> from these tests, it's redundant. NFC
2016-05-10 18:28:10 +00:00
LoopStrengthReduce
LSR: Don't drop address space when type doesn't match
2017-01-30 19:50:17 +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
Constant fold switch inst when looking for trivial conditions to unswitch on.
2017-01-27 01:42:20 +00:00
LoopVectorize
[LV] Also port failure remarks to new OptimizationRemarkEmitter API
2017-02-02 05:41:51 +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
[PM] Port LowerAtomic to the new pass manager.
2016-05-13 22:52:35 +00:00
LowerExpectIntrinsic
[Profile] handle select instruction in 'expect' lowering
2016-09-02 22:03:40 +00:00
LowerGuardIntrinsic
[PM] Port LowerGuardIntrinsic to the new PM.
2016-07-28 22:08:41 +00:00
LowerInvoke
[PM] Port LowerInvoke to the new pass manager
2016-08-12 17:28:27 +00:00
LowerSwitch
Have a single way for creating unique value names.
2015-11-22 00:16:24 +00:00
LowerTypeTests
LowerTypeTests: Ignore external globals with type metadata.
2017-01-26 00:32:15 +00:00
Mem2Reg
[PM] Port Mem2Reg to the new pass manager.
2016-06-14 03:22:22 +00:00
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
Revert "Change memcpy/memset/memmove to have dest and source alignments."
2015-11-19 05:56:52 +00:00
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
Do not propagate DebugLoc across basic blocks
2017-01-31 20:57:13 +00:00
ObjCARC
[ObjCARC] Traverse chain downwards to replace uses of argument passed to
2016-09-13 23:43:11 +00:00
PartiallyInlineLibCalls
Add positive test for sqrt "partial inlining". NFC.
2017-01-04 21:24:56 +00:00
PGOProfile
Fix some broken CHECK lines.
2017-01-22 20:28:56 +00:00
PhaseOrdering
Mark that SpeculativeExecution preserves Globals Alias Analysis.
2016-05-03 08:33:26 +00:00
PlaceSafepoints
[PlaceSafepoints] Don't call undef in test case; NFC
2016-06-25 01:40:54 +00:00
PreISelIntrinsicLowering
[PM] Port PreISelIntrinsicLowering to the new PM
2016-06-24 20:13:42 +00:00
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
Move the personality function from LandingPadInst to Function
2015-06-17 20:52:32 +00:00
RewriteStatepointsForGC
[RS4GC] Strengthen coverage: add more tests
2016-10-07 20:34:00 +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.
2017-01-31 17:49:37 +00:00
Scalarizer
Scalarizer: Support scalarizing intrinsics
2016-07-25 20:02:54 +00:00
SCCP
[SCCP] Teach the pass how to handle div with overdefined operands.
2017-01-19 23:07:51 +00:00
SeparateConstOffsetFromGEP
[NVPTX] Enable the load-store vectorizer on nvptx.
2016-07-20 22:11:36 +00:00
SimplifyCFG
[InstCombine] Merge DebugLoc when speculatively hoisting store instruction
2017-01-28 07:05:43 +00:00
Sink
Add a testcase for r275581
2016-07-19 17:52:41 +00:00
SLPVectorizer
[SLP] Vectorize loads of consecutive memory accesses, accessed in non-consecutive (jumbled) way.
2017-01-28 17:59:44 +00:00
SpeculativeExecution
SpeculativeExecution: Allow speculating more inst types
2016-10-28 20:00:33 +00:00
SROA
[DIExpression] Introduce a dedicated DW_OP_LLVM_fragment operation
2016-12-05 18:04:47 +00:00
StraightLineStrengthReduce
[SLSR] Call getPointerSizeInBits with the correct address space.
2016-07-11 18:13:28 +00:00
StripDeadPrototypes
[PM] Port StripDeadPrototypes to the new pass manager
2015-10-30 23:28:12 +00:00
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