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e582594538
llvm-mirror/test/Transforms
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Sanjay Patel e582594538 [x86] avoid code explosion from LoopVectorizer for gather loop (PR27826) 
By making pointer extraction from a vector more expensive in the cost model,
we avoid the vectorization of a loop that is very likely to be memory-bound:
https://llvm.org/bugs/show_bug.cgi?id=27826

There are still bugs related to this, so we may need a more general solution
to avoid vectorizing obviously memory-bound loops when we don't have HW gather
support.

Differential Revision: http://reviews.llvm.org/D20601

llvm-svn: 270729
2016-05-25 17:27:54 +00:00
..
ADCE
AddDiscriminators Revert http://reviews.llvm.org/D19926 as it breaks tests. 2016-05-05 20:47:53 +00:00
AlignmentFromAssumptions
ArgumentPromotion [ArgumentPromotion] Propagate operand bundles to promoted call sites 2016-04-29 04:56:12 +00:00
AtomicExpand
BBVectorize
BDCE [PM] Port BDCE to the new pass manager. 2016-05-25 01:57:04 +00:00
BranchFolding
CodeExtractor
CodeGenPrepare [CodeGenPrepare] Don't sink a cast past its user 2016-04-27 19:36:38 +00:00
ConstantHoisting
ConstantMerge [PM] Port ConstantMerge to the new pass manager. 2016-05-05 00:51:09 +00:00
ConstProp Revert "[SCCP] Partially propagate informations when the input is not fully defined." 2016-05-11 23:06:10 +00:00
CorrelatedValuePropagation Remove extra whitespace. NFC. 2016-05-02 16:45:00 +00:00
CrossDSOCFI
DCE Mark guards on true as "trivially dead" 2016-04-29 22:23:16 +00:00
DeadArgElim [DeadArgumentElimination] Propagate operand bundles to promoted call sites 2016-04-29 07:22:36 +00:00
DeadStoreElimination [PM] Port DSE to the new pass manager 2016-05-17 21:38:13 +00:00
EarlyCSE [EarlyCSE] Simplify guard intrinsics 2016-04-29 21:52:58 +00:00
EliminateAvailableExternally [PM] Port EliminateAvailableExternally pass to the new pass manager. 2016-05-05 02:37:32 +00:00
Float2Int
ForcedFunctionAttrs
FunctionAttrs [FunctionAttrs] Volatile loads should disable readonly 2016-05-25 05:53:04 +00:00
FunctionImport ThinLTO: do not import function whose linkage prevents inlining. 2016-05-03 00:27:28 +00:00
GCOVProfiling DebugInfo: Remove MDString-based type references 2016-04-23 21:08:00 +00:00
GlobalDCE [GlobalDCE, Misc] Don't remove functions referenced by ifuncs 2016-05-04 00:20:48 +00:00
GlobalMerge CodeGen: Make the global-merge pass independently testable, and add a test. 2016-05-19 04:38:56 +00:00
GlobalOpt Make "@name =" mandatory for globals in .ll files. 2016-05-10 18:22:45 +00:00
GuardWidening [GuardWidening] Fix incorrect use of remove_if 2016-05-21 02:24:44 +00:00
GVN [GVN] PRE of unordered loads 2016-05-06 21:43:51 +00:00
IndVarSimplify [LLVM] Remove unwanted --check-prefix=CHECK from unit tests. NFC. 2016-04-19 23:51:52 +00:00
InferFunctionAttrs [InferAttrs] Mark memset_pattern16 params nocapture. 2016-04-27 19:04:43 +00:00
Inline Allow -inline-threshold to override default threshold. 2016-05-19 23:02:09 +00:00
InstCombine [X86] Remove the llvm.x86.sse2.storel.dq intrinsic. It hasn't been used in a long time. 2016-05-25 06:56:32 +00:00
InstMerge
InstSimplify [ValueTracking, InstSimplify] extend isKnownNonZero() to handle vector constants 2016-05-24 14:18:49 +00:00
Internalize PM: Port Internalize to the new pass manager 2016-04-26 20:15:52 +00:00
IPConstantProp [PM] Port Interprocedural SCCP to the new pass manager. 2016-05-05 21:05:36 +00:00
IRCE [IRCE] Optimize "uses" not branches; NFCI 2016-05-23 22:16:45 +00:00
JumpThreading [ValueTracking] Improve isImpliedCondition when the dominating cond is false. 2016-04-25 17:23:36 +00:00
LCSSA
LICM [ValueTracking] Use guards to prove non-nullness of a value 2016-05-10 02:35:44 +00:00
LoadCombine
LoopDataPrefetch [LoopDataPrefetch] Add optimization remark 2016-05-05 00:08:15 +00:00
LoopDeletion Use all_of instead of a raw loop; NFC 2016-05-03 17:50:06 +00:00
LoopDistribute [LoopDist] Add missing RUN line in test from r268006 2016-04-29 07:16:00 +00:00
LoopIdiom AMDGPU: Other sizes of popcnt are fast 2016-05-18 16:10:19 +00:00
LoopInterchange
LoopLoadElim
LoopReroll Enable loopreroll for sext of loop control only IV 2016-05-10 21:16:49 +00:00
LoopRotate LPM: Drop require<loops> from these tests, it's redundant. NFC 2016-05-10 18:28:10 +00:00
LoopSimplify
LoopSimplifyCFG LPM: Drop require<loops> from these tests, it's redundant. NFC 2016-05-10 18:28:10 +00:00
LoopStrengthReduce AMDGPU: Fix a few slightly broken tests 2016-05-18 15:48:44 +00:00
LoopUnroll Re-enable "[LoopUnroll] Enable advanced unrolling analysis by default" one more time. 2016-05-24 23:00:05 +00:00
LoopUnswitch
LoopVectorize [x86] avoid code explosion from LoopVectorizer for gather loop (PR27826) 2016-05-25 17:27:54 +00:00
LoopVersioning
LoopVersioningLICM [LoopVersioningLICM] Add test coverage for llvm.loop.licm_versioning.disable 2016-04-22 18:34:50 +00:00
LowerAtomic [PM] Port LowerAtomic to the new pass manager. 2016-05-13 22:52:35 +00:00
LowerBitSets
LowerExpectIntrinsic [LowerExpectIntrinsic] make default likely/unlikely ratio bigger 2016-04-26 22:23:38 +00:00
LowerGuardIntrinsic [Guards] Add branch metadata when lowering 2016-05-17 17:51:19 +00:00
LowerInvoke
LowerSwitch
Mem2Reg
MemCpyOpt [MemCpyOpt] Use MaxIntSize in byte instead of bit 2016-05-13 16:52:24 +00:00
MergeFunc Functions with differing phis should not be merged. 2016-05-20 18:39:11 +00:00
MetaRenamer
NameAnonFunctions
NaryReassociate
ObjCARC
PartiallyInlineLibCalls
PGOProfile [PM] Port indirect call promotion pass to new pass manager 2016-05-16 16:31:07 +00:00
PhaseOrdering Mark that SpeculativeExecution preserves Globals Alias Analysis. 2016-05-03 08:33:26 +00:00
PlaceSafepoints
PreISelIntrinsicLowering Introduce llvm.load.relative intrinsic. 2016-04-22 21:18:02 +00:00
PruneEH
Reassociate PM: Port Reassociate to the new pass manager 2016-04-26 23:39:29 +00:00
Reg2Mem
RewriteStatepointsForGC [RewriteStatepointsForGC] Remove obsolete assertion 2016-05-17 13:54:10 +00:00
SafeStack DebugInfo: Remove MDString-based type references 2016-04-23 21:08:00 +00:00
SampleProfile Tune basic block annotation algorithm. 2016-04-26 04:59:11 +00:00
Scalarizer
ScalarRepl
SCCP [PM] Port per-function SCCP to the new pass manager. 2016-05-18 15:18:25 +00:00
SeparateConstOffsetFromGEP
SimplifyCFG [SimplifyCFG] Remove cleanuppads which are empty except for calls to lifetime.end 2016-05-21 05:12:32 +00:00
Sink PM: Port SinkingPass to the new pass manager 2016-04-22 19:54:10 +00:00
SLPVectorizer [SLPVectorizer][X86] Regenerated SEXT/ZEXT cast vectorization tests 2016-05-06 22:22:18 +00:00
SpeculativeExecution
SROA [SROA] Function canConvertValue needs to check whether both NewTy and OldTy pointers are 2016-05-03 19:30:48 +00:00
StraightLineStrengthReduce
StripDeadPrototypes
StripSymbols Refactor stripDebugInfo(Function) to handle intrinsic 2016-05-07 04:10:52 +00:00
StructurizeCFG
TailCallElim
Util [BasicAA] Treat llvm.assume as not accessing memory in getModRefBehavior(Function) 2016-04-29 17:18:28 +00:00
WholeProgramDevirt