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llvm-project/llvm/lib/Transforms/Scalar
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Florian Hahn 1b84acb23a
[LoopDeletion] Consider infinite loops alive, unless mustprogress. 
The current loop or any of its sub-loops may be infinite. Unless the
function or the loops are marked as mustprogress, this in itself makes
the loop *not* dead.

This patch moves the logic to check whether the current loop is finite
or mustprogress to `isLoopDead` and also extends it to check the
sub-loops. This should fix PR50511.

Reviewed By: nikic

Differential Revision: https://reviews.llvm.org/D103382
2021-06-01 13:07:36 +01:00
..
ADCE.cpp
[DebugInfo] Salvage dbg.value() during ADCE
2021-05-21 05:25:59 -07:00
AlignmentFromAssumptions.cpp
[NFCI] Move DEBUG_TYPE definition below #includes
2021-05-30 17:31:01 +08:00
AnnotationRemarks.cpp
[Remarks] Add analysis remarks for memset/memcpy/memmove lengths
2021-05-24 10:10:44 -07:00
BDCE.cpp
[NewPM] Don't mark AA analyses as preserved
2021-05-18 13:49:03 -07:00
CallSiteSplitting.cpp
[Support] Introduce a new InstructionCost class
2020-12-11 08:12:54 +00:00
CMakeLists.txt
[ScalarizeMaskedMemIntrinsic] Move from CodeGen into Transforms
2020-12-08 12:25:58 -05:00
ConstantHoisting.cpp
[TTI] NFC: Change getIntImmCost[Inst|Intrin] to return InstructionCost
2021-04-23 16:06:36 +01:00
ConstraintElimination.cpp
[NewPM] Don't mark AA analyses as preserved
2021-05-18 13:49:03 -07:00
CorrelatedValuePropagation.cpp
[CVP] Guard against poison in common phi value transform (PR50399)
2021-05-25 20:47:17 +02:00
DCE.cpp
[Scalar] Use range-based for loops (NFC)
2021-02-25 19:54:38 -08:00
DeadStoreElimination.cpp
[DSE] Remove stores in the same loop iteration
2021-05-31 10:22:37 +01:00
DivRemPairs.cpp
[NewPM] Don't mark AA analyses as preserved
2021-05-18 13:49:03 -07:00
EarlyCSE.cpp
[FPEnv] EarlyCSE support for constrained intrinsics, default FP environment edition
2021-05-20 14:40:51 -04:00
FlattenCFGPass.cpp
[NFC] Reduce include files dependency and AA header cleanup (part 2).
2020-12-17 14:04:48 +03:00
Float2Int.cpp
[NFCI] Move DEBUG_TYPE definition below #includes
2021-05-30 17:31:01 +08:00
GuardWidening.cpp
[llvm] Use llvm::all_of (NFC)
2021-01-19 20:19:17 -08:00
GVN.cpp
[NewPM] Don't mark AA analyses as preserved
2021-05-18 13:49:03 -07:00
GVNHoist.cpp
[NewPM] Don't mark AA analyses as preserved
2021-05-18 13:49:03 -07:00
GVNSink.cpp
[NewPM] Don't mark AA analyses as preserved
2021-05-18 13:49:03 -07:00
InductiveRangeCheckElimination.cpp
[NFC][NewPM] Remove some AnalysisManager invalidate methods
2021-04-15 16:51:26 -07:00
IndVarSimplify.cpp
[IndVarSimplify][NFC] Removed mayThrow from if-condition in predicateLoopExits of IndVarSimplify
2021-05-03 18:25:07 -07:00
InferAddressSpaces.cpp
[NewPM] Port infer-address-spaces
2020-12-28 19:58:12 -08:00
InstSimplifyPass.cpp
[Bindings] Move LLVMAddInstructionSimplifyPass to Scalar.cpp
2020-09-02 10:35:39 -07:00
IVUsersPrinter.cpp
…
JumpThreading.cpp
[NewPM] Don't mark AA analyses as preserved
2021-05-18 13:49:03 -07:00
LICM.cpp
[LICM] Remove MaybePromotable set (PR50367)
2021-05-18 20:26:01 +02:00
LoopAccessAnalysisPrinter.cpp
…
LoopDataPrefetch.cpp
[NFCI] Move DEBUG_TYPE definition below #includes
2021-05-30 17:31:01 +08:00
LoopDeletion.cpp
[LoopDeletion] Consider infinite loops alive, unless mustprogress.
2021-06-01 13:07:36 +01:00
LoopDistribute.cpp
[NewPM] Don't mark AA analyses as preserved
2021-05-18 13:49:03 -07:00
LoopFlatten.cpp
[LoopNest][LoopFlatten] Change LoopFlattenPass to LoopNest pass
2021-05-28 15:43:12 +00:00
LoopFuse.cpp
[ADT] Remove StatisticBase and make NoopStatistic empty
2021-04-26 16:47:32 -07:00
LoopIdiomRecognize.cpp
[LoopIdiom] 'arithmetic right-shift until zero': don't turn potentially infinite loops into finite ones
2021-05-25 21:02:28 +03:00
LoopInstSimplify.cpp
…
LoopInterchange.cpp
[LoopInterhcange] Handle movement of reduction phis appropriately
2021-05-31 16:27:38 -04:00
LoopLoadElimination.cpp
[LoopLoadElim] Pass ScalarEvolution in old pass manager. PR49141
2021-02-15 18:08:23 +07:00
LoopPassManager.cpp
[NewPM] Don't mark AA analyses as preserved
2021-05-18 13:49:03 -07:00
LoopPredication.cpp
[BPI] Improve static heuristics for "cold" paths.
2020-12-23 22:47:36 +07:00
LoopRerollPass.cpp
[LoopReroll] Fix rerolling loop with extra instructions
2021-04-23 15:14:46 +09:00
LoopRotation.cpp
[LoopRotate] Don't split loop pass manager
2021-04-08 22:05:18 +02:00
LoopSimplifyCFG.cpp
[DominatorTree] Add support for mixed pre/post CFG views.
2021-01-06 14:53:09 -08:00
LoopSink.cpp
[llvm] Use set_is_subset (NFC)
2021-02-28 10:59:20 -08:00
LoopStrengthReduce.cpp
[LSR][DebugInfo] Don't unnecessarily drop DebugLocs
2021-04-26 13:14:42 +01:00
LoopUnrollAndJamPass.cpp
[LoopUnrollAndJam] Change LoopUnrollAndJamPass to LoopNest pass
2021-05-28 01:17:23 +09:00
LoopUnrollPass.cpp
[unroll] Use value domain for symbolic execution based cost model
2021-05-26 08:41:25 -07:00
LoopUnswitch.cpp
Add a subclass of IntrinsicInst for llvm.assume [nfc]
2021-04-06 11:16:22 -07:00
LoopVersioningLICM.cpp
[SCEV] Use isa<> pattern for testing for CouldNotCompute [NFC]
2020-11-24 18:47:49 -08:00
LowerAtomic.cpp
[NVPTX] Enable lowering of atomics on local memory
2021-04-26 20:12:12 -04:00
LowerConstantIntrinsics.cpp
[NewPM] Don't mark AA analyses as preserved
2021-05-18 13:49:03 -07:00
LowerExpectIntrinsic.cpp
[TargetTransformInfo] move branch probability query from TargetLoweringInfo
2021-03-22 15:55:34 -04:00
LowerGuardIntrinsic.cpp
…
LowerMatrixIntrinsics.cpp
[Matrix] Use LLVM_DEBUG for a debug flag
2021-05-25 21:10:19 +02:00
LowerWidenableCondition.cpp
…
MakeGuardsExplicit.cpp
…
MemCpyOptimizer.cpp
[NewPM] Don't mark AA analyses as preserved
2021-05-18 13:49:03 -07:00
MergedLoadStoreMotion.cpp
[NewPM] Don't mark AA analyses as preserved
2021-05-18 13:49:03 -07:00
MergeICmps.cpp
[NewPM] Don't mark AA analyses as preserved
2021-05-18 13:49:03 -07:00
NaryReassociate.cpp
[NARY] Don't optimize min/max if there are side uses (part2)
2021-04-30 19:02:02 +07:00
NewGVN.cpp
[NewPM] Don't mark AA analyses as preserved
2021-05-18 13:49:03 -07:00
PartiallyInlineLibCalls.cpp
[PartiallyInlineLibCalls] Preserve Dominator Tree, if avaliable
2021-01-29 01:11:36 +03:00
PlaceSafepoints.cpp
[Transforms] Use llvm::append_range (NFC)
2020-12-27 09:57:29 -08:00
Reassociate.cpp
[NewPM] Don't mark AA analyses as preserved
2021-05-18 13:49:03 -07:00
Reg2Mem.cpp
[Reg2Mem] add support for the new pass manager
2020-11-08 11:14:05 +00:00
RewriteStatepointsForGC.cpp
[RS4GC] Introduce intrinsics to get base ptr and offset
2021-05-27 09:14:14 +07:00
Scalar.cpp
[ScalarizeMaskedMemIntrin] Add new PM support
2020-12-08 17:15:22 -05:00
ScalarizeMaskedMemIntrin.cpp
Expand masked mem intrinsics correctly wrt big-endian
2021-02-11 08:59:52 +00:00
Scalarizer.cpp
[Scalarizer] Use poison as insertelement's placeholder
2021-01-04 00:35:28 +09:00
SCCP.cpp
[NewPM] Don't mark AA analyses as preserved
2021-05-18 13:49:03 -07:00
SeparateConstOffsetFromGEP.cpp
SeparateConstOffsetFromGEP::lowerToSingleIndexGEPs - don't use dyn_cast_or_null. NFCI.
2020-12-15 17:27:25 +00:00
SimpleLoopUnswitch.cpp
Revert "[SimpleLoopUnswitch] Port partially invariant unswitch from LoopUnswitch to SimpleLoopUnswitch"
2021-05-13 08:40:49 +01:00
SimplifyCFGPass.cpp
[NFCI] SimplifyCFGPass: mergeEmptyReturnBlocks(): use DeleteDeadBlocks()
2021-05-19 11:32:24 +03:00
Sink.cpp
[CSSPGO] Unblock optimizations with pseudo probe instrumentation part 2.
2021-04-26 16:52:33 -07:00
SpeculateAroundPHIs.cpp
NFC: Migrate SpeculateAroundPHIs to work on InstructionCost
2021-02-02 13:32:45 +00:00
SpeculativeExecution.cpp
[NewPM] Don't mark AA analyses as preserved
2021-05-18 13:49:03 -07:00
SROA.cpp
[NewPM] Don't mark AA analyses as preserved
2021-05-18 13:49:03 -07:00
StraightLineStrengthReduce.cpp
[Transforms/Scalar] Use range-based for loops (NFC)
2021-02-04 21:18:05 -08:00
StructurizeCFG.cpp
[Scalar] Use range-based for loops (NFC)
2021-02-25 19:54:38 -08:00
TailRecursionElimination.cpp
[TRE] Reland: allow TRE for non-capturing calls.
2021-05-25 11:35:48 +03:00
WarnMissedTransforms.cpp
[SVE] Add support for scalable vectors with vectorize.scalable.enable loop attribute
2020-12-02 13:23:43 +00:00