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Simon Pilgrim 775ebccf6b [SLPVectorizer] Add basic support for mul/and/or/xor horizontal reductions

Expand arithmetic reduction to include mul/and/or/xor instructions.

This patch just fixes the SLPVectorizer - the effective reduction costs for AVX1+ are still poor (see rL344846) and will need to be improved before SLP sees this as a valid transform - but we can already see the effect on SSE2 tests.

This partially helps PR37731, but doesn't fix it all as it still falls over on the extraction/reduction order for some reason.

Differential Revision: https://reviews.llvm.org/D53473

llvm-svn: 345037

2018-10-23 15:13:09 +00:00

ADCE

[DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label.

2018-05-09 02:40:45 +00:00

AddDiscriminators

[DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label.

2018-05-09 02:40:45 +00:00

AggressiveInstCombine

[AggressiveInstCombine] avoid crashing on unsimplified code (PR37446)

2018-05-14 13:43:32 +00:00

AlignmentFromAssumptions

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ArgumentPromotion

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AtomicExpand

AMDGPU: Expand atomicrmw nand in IR

2018-10-02 03:50:56 +00:00

BDCE

[DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label.

2018-05-09 02:40:45 +00:00

BlockExtractor

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BranchFolding

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CalledValuePropagation

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CallSiteSplitting

[CallSiteSplitting] Add debug location to created PHI nodes.

2018-09-11 17:55:58 +00:00

CodeExtractor

[CodeExtractor] Use 'normal destination' BB as insert point to store invoke results.

2018-08-21 20:07:46 +00:00

CodeGenPrepare

Fix a use-after-RAUW bug in large GEP splitting

2018-10-19 19:02:16 +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

[X86] Add constant folding for AVX512 versions of scalar floating point to integer conversion intrinsics.

2018-08-12 22:09:54 +00:00

Coroutines

[Coroutines] PR34897: Fix incorrect elisions

2018-05-11 03:12:28 +00:00

CorrelatedValuePropagation

[CVP] Extend tests to illustrate an old patch isn't needed

2018-08-24 21:56:43 +00:00

CrossDSOCFI

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DCE

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DeadArgElim

[deadargelim] Update dbg.value of 'unused' parameters

2018-09-24 10:01:24 +00:00

DeadStoreElimination

[BasicAA] Don't assume tail calls with byval don't alias allocas

2018-08-14 01:24:35 +00:00

DivRemPairs

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EarlyCSE

[EarlyCSEwMemorySSA] Add MSSA verification and tests to make EarlyCSE failures easier to track.

2018-09-17 22:35:21 +00:00

EliminateAvailableExternally

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EntryExitInstrumenter

[DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label.

2018-05-09 02:40:45 +00:00

ExpandMemCmp/X86

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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

New test requires x86-registered-target

2018-10-17 00:59:14 +00:00

GCOVProfiling

[DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label.

2018-05-09 02:40:45 +00:00

GlobalDCE

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GlobalMerge

[GlobalMerge] Allow merging globals with explicit section markings.

2018-08-02 23:54:16 +00:00

GlobalOpt

[PPC] Remove Darwin support from POWER backend.

2018-08-28 01:18:29 +00:00

GlobalSplit

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GuardWidening

[GuardWidening] Ignore guards with trivial conditions

2018-08-22 02:40:49 +00:00

GVN

Make YAML quote forward slashes.

2018-10-12 16:31:20 +00:00

GVNHoist

[MemorySSAUpdater] Avoid creating self-referencing MemoryDefs

2018-09-11 14:29:59 +00:00

GVNSink

[Local] Make DoesKMove required for combineMetadata.

2018-08-24 11:40:04 +00:00

HotColdSplit

[hot-cold-split] Add opt remark on success

2018-10-22 19:06:42 +00:00

IndirectBrExpand

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IndVarSimplify

[IndVars] Drop "exact" flag from lshr and udiv when substituting their args

2018-10-11 07:22:26 +00:00

InferAddressSpaces

AMDGPU: Fix tests using old number for constant address space

2018-09-10 02:54:25 +00:00

InferFunctionAttrs

[LibCalls] Added returned attribute to libcalls

2018-08-23 05:18:23 +00:00

Inline

Make YAML quote forward slashes.

2018-10-12 16:31:20 +00:00

InstCombine

[InstCombine] use 'match' to handle vectors and simplify code

2018-10-23 15:05:12 +00:00

InstMerge

[MergedLoadStoreMotion] Fix a debug invariant bug in mergeStores

2018-05-09 06:52:12 +00:00

InstNamer

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InstSimplify

[InstCombine] InstCombine and InstSimplify for minimum and maximum

2018-10-19 19:01:26 +00:00

InterleavedAccess

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Internalize

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IPConstantProp

Recommit r333268: [IPSCCP] Use PredicateInfo to propagate facts from cmp instructions.

2018-08-23 11:04:00 +00:00

IRCE

Revert "[SCEV][NFC] Check NoWrap flags before lexicographical comparison of SCEVs"

2018-08-27 21:41:37 +00:00

JumpThreading

[Local] Make DoesKMove required for combineMetadata.

2018-08-24 11:40:04 +00:00

LCSSA

[DebugInfo][LCSSA] Rewrite pre-existing debug values outside loop

2018-10-16 08:06:48 +00:00

LICM

[InstCombine] InstCombine and InstSimplify for minimum and maximum

2018-10-19 19:01:26 +00:00

LoadStoreVectorizer

AMDGPU: Fix private handling for allowsMisalignedMemoryAccesses

2018-09-24 13:18:15 +00:00

LoopDataPrefetch

[DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label.

2018-05-09 02:40:45 +00:00

LoopDeletion

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LoopDistribute

[DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label.

2018-05-09 02:40:45 +00:00

LoopIdiom

SCEV should forget all loops containing a deleted block.

2018-08-09 17:53:26 +00:00

LoopInstSimplify

Update MemorySSA in LoopInstSimplify.

2018-08-22 20:05:21 +00:00

LoopInterchange

[LoopInterchange] Preserve LCSSA.

2018-09-26 19:34:25 +00:00

LoopLoadElim

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LoopPredication

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LoopReroll

[LoopReroll] Rewrite induction variable rewriting.

2018-06-22 22:58:55 +00:00

LoopRotate

[New PM] Introducing PassInstrumentation framework

2018-09-20 17:08:45 +00:00

LoopSimplify

[DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label.

2018-05-09 02:40:45 +00:00

LoopSimplifyCFG

Update MemorySSA in LoopSimplifyCFG.

2018-08-22 20:10:21 +00:00

LoopStrengthReduce

AMDGPU: Fix some outdated datalayouts in tests

2018-09-13 11:56:28 +00:00

LoopUnroll

Remove LoopID metadata from the branch instruction

2018-09-26 01:03:21 +00:00

LoopUnrollAndJam

[UnJ] Improve explicit loop count checks

2018-08-11 07:37:31 +00:00

LoopUnswitch

Update MemorySSA in LoopUnswitch.

2018-09-11 19:19:21 +00:00

LoopVectorize

[InstCombine] use 'match' to handle vectors and simplify code

2018-10-23 15:05:12 +00:00

LoopVersioning

Re-apply "[SCEV] Strengthen StrengthenNoWrapFlags (reapply r334428)."

2018-07-13 23:58:46 +00:00

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

[LowerTypeTests] Limit when icall jumptable entries are emitted

2018-07-13 19:57:39 +00:00

Mem2Reg

Improve ConvertDebugDeclareToDebugValue

2018-06-26 06:17:00 +00:00

MemCpyOpt

Merge clang's isRepeatedBytePattern with LLVM's isBytewiseValue

2018-09-21 05:17:42 +00:00

MergeFunc

[MergeFunctions] Fix merging of small weak functions

2018-05-15 11:31:07 +00:00

MergeICmps

Re-submitting changes in D51550 because it failed to patch.

2018-09-24 20:47:12 +00:00

MetaRenamer

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NameAnonGlobals

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NaryReassociate

[NaryReassociate] Detect deleted instr with WeakVH

2018-05-24 06:09:02 +00:00

NewGVN

[NewGVN] Mark function as changed if we erase instructions.

2018-09-07 11:41:34 +00:00

ObjCARC

[ObjCARC] Prevent code motion into a catchswitch

2018-05-16 04:52:18 +00:00

PartiallyInlineLibCalls

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PGOProfile

Add a flag to remap manglings when reading profile data information.

2018-10-10 23:13:47 +00:00

PhaseOrdering

[PhaseOrdering] remove stale comments; NFC

2018-05-09 23:10:46 +00:00

PlaceSafepoints

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PreISelIntrinsicLowering

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PruneEH

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Reassociate

[Reassociate] remove bogus tests; NFC

2018-10-22 22:50:27 +00:00

Reg2Mem

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RewriteStatepointsForGC

NFC - Various typo fixes in tests

2018-07-04 13:28:39 +00:00

SafeStack

SafeStack: Prevent OOB reads with mem intrinsics

2018-08-30 20:44:51 +00:00

SampleProfile

Add a flag to remap manglings when reading profile data information.

2018-10-10 23:13:47 +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

[LoopVectorize] Loop vectorization for minimum and maximum

2018-10-19 21:11:43 +00:00

SCCP

SCCP: avoid caching DenseMap entry that might be invalidated.

2018-10-12 09:01:59 +00:00

SeparateConstOffsetFromGEP

[Split GEP] handle trunc() in separate-const-offset-from-gep pass.

2018-05-11 21:13:19 +00:00

SimpleLoopUnswitch

[SimpleLoopUnswitch] remove a chain of dead blocks at once

2018-09-04 20:19:41 +00:00

SimplifyCFG

[InstCombine] InstCombine and InstSimplify for minimum and maximum

2018-10-19 19:01:26 +00:00

Sink

…

SLPVectorizer

[SLPVectorizer] Add basic support for mul/and/or/xor horizontal reductions

2018-10-23 15:13:09 +00:00

SpeculateAroundPHIs

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SpeculativeExecution

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SROA

[SROA] Fix alignment for uses of PHI nodes.

2018-08-30 18:59:24 +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

[ThinLTOBitcodeWriter] Emit summaries for regular LTO modules

2018-06-01 15:20:47 +00:00

Util

Relax trivial cast requirements in CallPromotionUtils

2018-10-10 16:35:47 +00:00

WholeProgramDevirt

[ThinLTO] Efficiency fix for writing type id records in per-module indexes

2018-09-25 20:14:40 +00:00