Simon Pilgrim a09d4b00f9 [X86][SSE] Use multiplication scale factors for v8i16 SHL on pre-AVX2 targets. ...

Similar to v4i32 SHL, convert v8i16 shift amounts to scale factors instead to improve performance and reduce instruction count. We were already doing this for constant shifts, this adds variable shift support.

Reduces the serial nature of the codegen, which relies on chains of plendvb/pand+pandn+por shifts.

This is a step towards adding support for vXi16 vector rotates.

Differential Revision: https://reviews.llvm.org/D47546

llvm-svn: 334023

2018-06-05 15:17:39 +00:00

..

AliasSet

[AliasSet] Teach the alias set how to handle atomic memcpy/memmove/memset

2018-05-30 14:43:39 +00:00

AssumptionCache

Add files I seem to have dropped in my revert (r290086).

2016-12-19 08:32:13 +00:00

BasicAA

[BasicAA] Teach the analysis about atomic memcpy

2018-05-29 19:23:50 +00:00

BlockFrequencyInfo

Revert part of "Cleanup some GraphTraits iteration code"

2017-12-08 22:42:43 +00:00

BranchProbabilityInfo

[BPI] Detect branches in loops that make themselves not taken

2018-02-23 17:17:31 +00:00

CallGraph

Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1)

2018-01-19 17:13:12 +00:00

CFLAliasAnalysis

Revert r332657: "[AA] cfl-anders-aa with field sensitivity"

2018-05-17 21:56:39 +00:00

ConstantFolding

[ConstantFold] Disallow folding vector geps into bitcasts

2018-06-01 19:34:35 +00:00

CostModel

[X86][SSE] Use multiplication scale factors for v8i16 SHL on pre-AVX2 targets.

2018-06-05 15:17:39 +00:00

Delinearization

[SCEV] Assume parameters coming from function calls contain IVs

2017-05-27 15:17:49 +00:00

DemandedBits

Fix tests after move to utohexstr.

2017-12-28 17:00:37 +00:00

DependenceAnalysis

[DA] Fix direction vectors for weakZeroSrcSIV

2018-05-31 14:55:29 +00:00

DivergenceAnalysis

AMDGPU: Dimension-aware image intrinsics

2018-04-04 10:58:54 +00:00

DominanceFrontier

Another fix the testcase introduced by r261903 - Add the missing matches

2016-02-26 03:41:47 +00:00

Dominators

[Dominators] Don't compute DFS InOut numbers eagerly.

2017-06-30 01:28:21 +00:00

GlobalsModRef

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

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

IVUsers

[SCEV] Add missed Test for rL331949.

2018-05-10 01:42:59 +00:00

LazyCallGraph

[LCG] Spell the printing pass pipeline name for the lazy call graph

2016-03-10 11:24:06 +00:00

LazyValueAnalysis

[JumpThreading] Preservation of DT and LVI across the pass

2018-01-12 21:06:48 +00:00

Lint

[Lint] Upgrade uses of MemoryIntrinic::getAlignment() to new API. (NFCI)

2018-01-31 16:42:15 +00:00

LoopAccessAnalysis

[LAA] Allow more run-time alias checks by coercing pointer expressions to AddRecExprs

2017-09-12 07:48:22 +00:00

LoopInfo

[PM] Port LoopInfo to the new pass manager, adding both a LoopAnalysis

2015-01-20 10:58:50 +00:00

MemoryDependenceAnalysis

[MemDep] Fixed handling of invariant.group

2018-05-18 22:40:34 +00:00

MemorySSA

[MemorySSA] Don't sort IDF blocks.

2018-05-15 18:40:29 +00:00

MustExecute

[LICM] Extend the MustExecute scope

2018-05-18 04:56:28 +00:00

PostDominators

[Dominators] Include infinite loops in PostDominatorTree

2017-08-15 18:14:57 +00:00

ProfileSummary

Reapply r271728 after adding move cobstructor for ProfileSummaryInfo

2016-06-03 22:54:26 +00:00

RegionInfo

[Dominators] Include infinite loops in PostDominatorTree

2017-08-15 18:14:57 +00:00

ScalarEvolution

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

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

ScopedNoAliasAA

[ScopedNoAliasAA] Make test basic.ll less confusing

2016-03-07 17:49:10 +00:00

TypeBasedAliasAnalysis

[Analysis] Support aggregate access types in TBAA

2018-02-02 14:09:22 +00:00

ValueTracking

Fix aliasing of launder.invariant.group

2018-05-23 09:16:44 +00:00

alias-analysis-uses.ll

Add an "addUsedAAAnalyses" helper function

2016-02-09 01:21:57 +00:00