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clang-p2996/llvm/test/Transforms
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Nikita Popov d3b86b79fa Reapply "[CodeGen][X86] Expand USUBSAT to UMAX+SUB, also for vectors" 
Related to https://bugs.llvm.org/show_bug.cgi?id=40123.

Rather than scalarizing, expand a vector USUBSAT into UMAX+SUB,
which produces much better code for X86.

Reapplying with updated SLPVectorizer tests.

Differential Revision: https://reviews.llvm.org/D56636

llvm-svn: 351219
2019-01-15 18:43:41 +00:00
..
ADCE
Remove irrelevant references to legacy git repositories from
2019-01-15 16:18:52 +00:00
AddDiscriminators
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AggressiveInstCombine
[AggressiveInstCombine] convert rotate with guard branch into funnel shift (PR34924)
2018-12-17 21:14:51 +00:00
AlignmentFromAssumptions
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ArgumentPromotion
[IPO][AVR] Create new Functions in the default address space specified in the data layout
2018-12-18 09:52:52 +00:00
AtomicExpand
AMDGPU: Expand atomicrmw nand in IR
2018-10-02 03:50:56 +00:00
BDCE
[BDCE] Remove dead uses of arguments
2019-01-04 21:21:43 +00:00
BlockExtractor
[hot-cold-split] Name split functions with ".cold" suffix
2018-10-24 18:53:47 +00:00
BranchFolding
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CalledValuePropagation
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CallSiteSplitting
[CallSiteSplitting] Report edge deletion to DomTreeUpdater
2018-11-29 15:27:04 +00:00
CanonicalizeAliases
[ThinLTO] Handle chains of aliases
2019-01-04 19:04:54 +00:00
CodeExtractor
[CodeExtractor] Do not extract unsafe lifetime markers
2019-01-04 17:43:22 +00:00
CodeGenPrepare
Remove irrelevant references to legacy git repositories from
2019-01-15 16:18:52 +00:00
ConstantHoisting
X86/TargetTransformInfo: Report div/rem constant immediate costs as TCC_Free
2018-10-11 23:14:35 +00:00
ConstantMerge
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ConstProp
[ConstantFolding] Fold undef for integer intrinsics
2019-01-11 21:18:00 +00:00
Coroutines
Remove irrelevant references to legacy git repositories from
2019-01-15 16:18:52 +00:00
CorrelatedValuePropagation
[test] Add a set of test for constant folding deopt operands with CVP
2018-12-13 00:54:05 +00:00
CrossDSOCFI
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DCE
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DeadArgElim
[IPO][AVR] Create new Functions in the default address space specified in the data layout
2018-12-18 09:52:52 +00:00
DeadStoreElimination
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DivRemPairs
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EarlyCSE
[EarlyCSE] If DI can't be salvaged, mark it as unavailable.
2018-12-17 01:42:39 +00:00
EliminateAvailableExternally
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EntryExitInstrumenter
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ExpandMemCmp/X86
Re-land r349731 "[CodeGen][ExpandMemcmp] Add an option for allowing overlapping loads.
2018-12-20 13:01:04 +00:00
Float2Int
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ForcedFunctionAttrs
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FunctionAttrs
[FuncAttrs] Remove "access range attributes" for read-none functions
2018-09-11 11:51:29 +00:00
FunctionImport
[ThinLTO] Allow importing of functions with var args
2018-12-01 05:11:46 +00:00
GCOVProfiling
[DebugInfo] IR/Bitcode changes for DISubprogram flags.
2018-11-28 21:14:32 +00:00
GlobalDCE
GlobalDCE: Teach isEmptyFunction() to ignore debug intrinsics.
2018-11-16 17:47:21 +00:00
GlobalMerge
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GlobalOpt
[DebugInfo][GlobalOpt] Fix -debugify for globalopt shrinking globals to booleans.
2018-10-23 16:35:51 +00:00
GlobalSplit
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GuardWidening
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GVN
[GVN] Don't perform scalar PRE on GEPs
2018-12-06 16:11:58 +00:00
GVNHoist
[MemorySSAUpdater] Avoid creating self-referencing MemoryDefs
2018-09-11 14:29:59 +00:00
GVNSink
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HotColdSplit
[CodeExtractor] Do not extract unsafe lifetime markers
2019-01-04 17:43:22 +00:00
IndirectBrExpand
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IndVarSimplify
Return "[IndVars] Smart hard uses detection"
2018-11-08 11:54:35 +00:00
InferAddressSpaces
AMDGPU: Fix tests using old number for constant address space
2018-09-10 02:54:25 +00:00
InferFunctionAttrs
Allow norecurse attribute on functions that have debug infos.
2018-12-05 16:48:00 +00:00
Inline
[Inliner] Assert that the computed inline threshold is non-negative.
2019-01-09 19:26:17 +00:00
InstCombine
Remove irrelevant references to legacy git repositories from
2019-01-15 16:18:52 +00:00
InstMerge
[DebugInfo][InstMerge] Fix -debugify for phi node created by -mldst-motion
2018-11-02 18:25:41 +00:00
InstNamer
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InstSimplify
[ConstantFolding] Consolidate and extend bitcount intrinsic tests; NFC
2018-12-20 19:46:52 +00:00
InterleavedAccess
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Internalize
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IPConstantProp
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IRCE
[NFC] Remove obsolete enum RangeCheckKind
2019-01-15 10:48:45 +00:00
JumpThreading
[Jump Threading] Unfold a select insn that feeds a switch via a phi node
2019-01-11 15:52:57 +00:00
LCSSA
[DebugInfo][LCSSA] Rewrite pre-existing debug values outside loop
2018-10-16 08:06:48 +00:00
LICM
Use MemorySSA in LICM to do sinking and hoisting.
2019-01-10 19:29:04 +00:00
LoadStoreVectorizer
[PM] Port LoadStoreVectorizer to the new pass manager.
2018-12-07 08:23:37 +00:00
LoopDataPrefetch
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LoopDeletion
Fix RUN line in test/Transforms/LoopDeletion/crashbc.ll
2019-01-10 09:58:23 +00:00
LoopDistribute
[Unroll/UnrollAndJam/Vectorizer/Distribute] Add followup loop attributes.
2018-12-12 17:32:52 +00:00
LoopIdiom
[LoopIdiomRecognize] Add CTTZ support
2018-12-26 21:59:48 +00:00
LoopInstSimplify
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LoopInterchange
[LoopInterchange] Support reductions across inner and outer loop.
2018-11-08 20:44:19 +00:00
LoopLoadElim
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LoopPredication
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LoopReroll
Remove irrelevant references to legacy git repositories from
2019-01-15 16:18:52 +00:00
LoopRotate
Remove irrelevant references to legacy git repositories from
2019-01-15 16:18:52 +00:00
LoopSimplify
Revert r346810 "Preserve loop metadata when splitting exit blocks"
2018-11-14 01:47:32 +00:00
LoopSimplifyCFG
[NFC] Add failing test on LCSSA form preservation of LoopSimplifyCFG
2018-12-28 10:43:37 +00:00
LoopStrengthReduce
[LoopStrengthReduce] ComplexityLimit as an option
2018-11-29 08:34:22 +00:00
LoopTransformWarning
[TransformWarning] Do not warn missed transformations in optnone functions.
2018-12-14 19:45:43 +00:00
LoopUnroll
[UnrollRuntime] Fix domTree failures in multiexit unrolling
2019-01-08 17:16:25 +00:00
LoopUnrollAndJam
[Unroll/UnrollAndJam/Vectorizer/Distribute] Add followup loop attributes.
2018-12-12 17:32:52 +00:00
LoopUnswitch
Update MemorySSA in LoopUnswitch.
2018-09-11 19:19:21 +00:00
LoopVectorize
[LoopVectorizer] give more advice in remark about failure to vectorize call
2019-01-12 15:27:15 +00:00
LoopVersioning
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LoopVersioningLICM
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LowerAtomic
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LowerExpectIntrinsic
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LowerGuardIntrinsic
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LowerInvoke
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LowerSwitch
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LowerTypeTests
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MakeGuardsExplicit
Introduce llvm.experimental.widenable_condition intrinsic
2018-12-07 14:39:46 +00:00
Mem2Reg
[Mem2Reg] Fix nondeterministic corner case
2018-11-30 19:20:02 +00:00
MemCpyOpt
[BasicAA] Fix AA bug on dynamic allocas and stackrestore
2018-12-21 19:59:03 +00:00
MergeFunc
[MergeFunc] Erase unused duplicate functions if they are discardable
2019-01-11 17:56:35 +00:00
MergeICmps
[MergeICmps] Do not perform the transformation if GEP is used outside of block
2018-11-05 18:16:32 +00:00
MetaRenamer
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NameAnonGlobals
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NaryReassociate
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NewGVN
Remove irrelevant references to legacy git repositories from
2019-01-15 16:18:52 +00:00
ObjCARC
Teach ObjCARC optimizer about equivalent PHIs when eliminating autoreleaseRV/retainRV pairs
2019-01-03 01:38:08 +00:00
PartiallyInlineLibCalls
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PGOProfile
[PGO] Exit early if all count values are zero
2018-11-07 23:51:20 +00:00
PhaseOrdering
[InstCombine] canonicalize raw IR rotate patterns to funnel shift
2019-01-01 21:51:39 +00:00
PlaceSafepoints
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PreISelIntrinsicLowering
Preserve the linkage for objc* intrinsics as clang will set them to weak_external in some cases
2018-12-18 22:42:08 +00:00
PruneEH
[Transforms] Preserve metadata when converting invoke to call.
2018-12-14 18:15:11 +00:00
Reassociate
[PatternMatch] Handle undef vectors consistently
2018-11-20 16:08:19 +00:00
Reg2Mem
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RewriteStatepointsForGC
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SafeStack
SafeStack: Prevent OOB reads with mem intrinsics
2018-08-30 20:44:51 +00:00
SampleProfile
[SampleFDO] handle ProfileSampleAccurate when initializing function entry count
2018-12-13 21:51:42 +00:00
ScalarizeMaskedMemIntrin/X86
[ScalarizeMaskedMemIntrin] Use MinAlign to calculate alignment for the scalar load/stores to handle element types that are byte-sized but not powers of 2.
2018-09-28 03:35:37 +00:00
Scalarizer
Introduce llvm.loop.parallel_accesses and llvm.access.group metadata.
2018-12-20 04:58:07 +00:00
SCCP
[ConstantFold] Use getMinSignedBits for APInt in isIndexInRangeOfArrayType.
2018-12-12 18:55:14 +00:00
SeparateConstOffsetFromGEP
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SimpleLoopUnswitch
Update MemorySSA in SimpleLoopUnswitch.
2018-12-04 14:23:37 +00:00
SimplifyCFG
Introduce llvm.loop.parallel_accesses and llvm.access.group metadata.
2018-12-20 04:58:07 +00:00
Sink
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SLPVectorizer
Reapply "[CodeGen][X86] Expand USUBSAT to UMAX+SUB, also for vectors"
2019-01-15 18:43:41 +00:00
SpeculateAroundPHIs
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SpeculativeExecution
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SROA
Introduce llvm.loop.parallel_accesses and llvm.access.group metadata.
2018-12-20 04:58:07 +00:00
StraightLineStrengthReduce
[SLSR] use 'match' to simplify code; NFC
2018-10-23 14:07:39 +00:00
StripDeadPrototypes
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StripSymbols
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StructurizeCFG
StructurizeCFG: Simplify inserted PHI nodes
2018-10-17 15:37:41 +00:00
SyntheticCountsPropagation
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TailCallElim
[TailCallElim] Enable marking of calls with byval as tails
2018-10-08 18:03:40 +00:00
ThinLTOBitcodeWriter
[LTO] Record whether LTOUnit splitting is enabled in index
2019-01-11 18:31:57 +00:00
Util
Remove irrelevant references to legacy git repositories from
2019-01-15 16:18:52 +00:00
WholeProgramDevirt
[ThinLTO] Efficiency fix for writing type id records in per-module indexes
2018-09-25 20:14:40 +00:00