Simon Pilgrim b80ba73702 [X86][CGP] Reduce memcmp() expansion to 2 load pairs (PR33914) ... D35067/rL308322 attempted to support up to 4 load pairs for memcmp inlining which resulted in regressions for some optimized libc memcmp implementations (PR33914). Until we can match these more optimal cases, this patch reduces the memcmp expansion to a maximum of 2 load pairs (which matches what we do for -Os). This patch should be considered for the 5.0.0 release branch as well Differential Revision: https://reviews.llvm.org/D35830 llvm-svn: 308986		2017-07-25 17:04:37 +00:00
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ADCE
AddDiscriminators
AlignmentFromAssumptions
ArgumentPromotion	[ArgumentPromotion] Change use of removed argument in llvm.dbg.value to undef	2017-07-10 06:07:24 +00:00
AtomicExpand
BDCE
BranchFolding
CodeExtractor	Clean up a test case	2017-06-27 21:35:49 +00:00
CodeGenPrepare	[X86][CGP] Reduce memcmp() expansion to 2 load pairs (PR33914)	2017-07-25 17:04:37 +00:00
ConstantHoisting	[ConstantHoisting] Remove dupliate logic in constant hoisting	2017-07-10 20:45:34 +00:00
ConstantMerge
ConstProp	[X86] Replace 'REQUIRES: x86' in tests with 'REQUIRES: x86-registered-target' which seems to be the correct way to make them run on an x86 build.	2017-06-04 08:21:58 +00:00
Coroutines	[coroutines] PR33271: Remove stray coro.save intrinsics during CoroSplit	2017-06-02 02:18:36 +00:00
CorrelatedValuePropagation	[LVI] Teach LVI to reason about ORs of icmps similar to how it reasons about ANDs of icmps	2017-06-23 01:08:16 +00:00
CountingFunctionInserter
CrossDSOCFI	[cfi] CFI-ICall for ThinLTO.	2017-06-16 00:18:29 +00:00
DCE	[InstSimplify] Don't constant fold or DCE calls that are marked nobuiltin	2017-06-09 23:18:11 +00:00
DeadArgElim	Replace hardcoded intrinsic list with speculatable attribute.	2017-05-03 02:26:10 +00:00
DeadStoreElimination
EarlyCSE	[EarlyCSE] Handle calls with no MemorySSA info.	2017-07-14 20:13:21 +00:00
EliminateAvailableExternally
Float2Int
ForcedFunctionAttrs
FunctionAttrs	Support arbitrary address space pointers in masked gather/scatter intrinsics.	2017-05-03 12:28:54 +00:00
FunctionImport	Revert "Restore with fix "[ThinLTO] Ensure we always select the same function copy to import""	2017-07-17 19:25:38 +00:00
GCOVProfiling
GlobalDCE	[PM] Teach the PGO instrumentation pasess to run GlobalDCE before	2017-05-25 07:15:09 +00:00
GlobalMerge	Align definition of DW_OP_plus with DWARF spec [3/3]	2017-06-14 13:14:38 +00:00
GlobalOpt	[GlobalOpt] Autogenerate checks for the test in PR33686.	2017-07-13 15:55:34 +00:00
GlobalSplit
GuardWidening
GVN	Fix DebugLoc propagation for unreachable LoadInst	2017-07-19 01:27:24 +00:00
GVNHoist	Disable GVN Hoist due to still more bugs being found in it. There is	2017-04-27 00:28:03 +00:00
GVNSink	Changed a comparison operator for std::stable_sort to implement strict weak ordering.	2017-06-08 17:27:40 +00:00
IndVarSimplify	Re-enable "[IndVars] Canonicalize comparisons between non-negative values and indvars"	2017-07-08 17:17:30 +00:00
InferAddressSpaces	[InferAddressSpaces] Fix assertion about null pointer	2017-07-07 02:40:13 +00:00
InferFunctionAttrs	Add argmononly attribute to strlen and wcslen, i.e. they only read memory (string) passed to them.	2017-06-18 03:10:26 +00:00
Inline	[TTI] Refine the cost of EXT in getUserCost()	2017-07-15 02:12:16 +00:00
InstCombine	Add element-atomic mem intrinsic canary tests for InstCombine.	2017-07-18 01:06:47 +00:00
InstMerge
InstNamer	Add basic test case for -instnamer	2017-05-08 23:18:46 +00:00
InstSimplify	[InstSimplify] Constant fold the new GEP in SimplifyGEPInst.	2017-06-06 10:17:14 +00:00
InterleavedAccess	Adding base test for interleave store VF16 and expand the test for AVX512	2017-07-24 18:29:56 +00:00
Internalize
IPConstantProp
IRCE	[IRCE] Recognize loops with ne/eq latch conditions	2017-07-18 04:53:48 +00:00
JumpThreading	[SimplifyCFG] Defer folding unconditional branches to LateSimplifyCFG if it can destroy canonical loop structure.	2017-07-19 08:53:34 +00:00
LCSSA
LICM	[AliasSetTracker] Don't drop AA MD so eagerly	2017-06-29 19:13:11 +00:00
LoadStoreVectorizer	Skip bitcasts while looking for GEP in LoadStoreVectorizer	2017-04-25 18:00:08 +00:00
LoopDataPrefetch
LoopDeletion	[LoopDeletion] Update exits correctly when multiple duplicate edges from an exiting block	2017-06-22 20:20:56 +00:00
LoopDistribute
LoopIdiom	[LIR] Teach LIR to avoid extending the BE count prior to adding one to	2017-07-25 10:48:32 +00:00
LoopInterchange	[LoopInterchange] Split up interchange.ll test case (NFC).	2017-07-18 09:47:06 +00:00
LoopLoadElim
LoopPredication
LoopReroll
LoopRotate	[tests] Cleanup vect.omp.persistence.ll test.	2017-07-25 10:35:16 +00:00
LoopSimplify	[LoopSimplify] Re-instate r306081 with a bug fix w.r.t. indirectbr.	2017-06-25 22:45:31 +00:00
LoopSimplifyCFG
LoopStrengthReduce	[LSR] Narrow search space by filtering non-optimal formulae with the same ScaledReg and Scale.	2017-07-06 15:52:14 +00:00
LoopUnroll	[ARM] Enable partial and runtime unrolling	2017-07-25 08:51:30 +00:00
LoopUnswitch	[SimplifyCFG] Defer folding unconditional branches to LateSimplifyCFG if it can destroy canonical loop structure.	2017-07-19 08:53:34 +00:00
LoopVectorize	[tests] Cleanup vect.omp.persistence.ll test.	2017-07-25 10:35:16 +00:00
LoopVersioning
LoopVersioningLICM
LowerAtomic
LowerExpectIntrinsic	Fix builin_expect lowering bug	2017-06-07 18:32:24 +00:00
LowerGuardIntrinsic
LowerInvoke
LowerSwitch	LowerSwitch: Fix producing invalid IR on unreachable code	2017-04-21 23:54:12 +00:00
LowerTypeTests	LowerTypeTests: Drop function type metadata only if we're going to replace it.	2017-07-20 18:02:05 +00:00
Mem2Reg	Add test coverage for mem2reg dbg.declare lowering.	2017-04-21 22:13:55 +00:00
MemCpyOpt
MergeFunc
MetaRenamer
NameAnonGlobals
NaryReassociate
NewGVN	[NewGVN] Check for congruency of memory accesses.	2017-07-11 19:49:12 +00:00
ObjCARC	Replace hardcoded intrinsic list with speculatable attribute.	2017-05-03 02:26:10 +00:00
PartiallyInlineLibCalls
PGOProfile	[PGO] Move the PGOInstrumentation pass to new OptRemark API.	2017-07-20 20:43:05 +00:00
PhaseOrdering
PlaceSafepoints
PreISelIntrinsicLowering
PruneEH
Reassociate	[Reassociate] Make sure EraseInst sets MadeChange	2017-06-27 05:32:13 +00:00
Reg2Mem
RewriteStatepointsForGC	[RS4GC] Drop invalid metadata after pointers are relocated	2017-06-12 21:26:53 +00:00
SafeStack	Align definition of DW_OP_plus with DWARF spec [3/3]	2017-06-14 13:14:38 +00:00
SampleProfile	Do not inline recursive direct calls in sample loader pass.	2017-06-21 17:57:43 +00:00
Scalarizer
SCCP
SeparateConstOffsetFromGEP
SimpleLoopUnswitch	[PM/Unswitch] Fix a bug in the domtree update logic for the new unswitch	2017-05-25 06:33:36 +00:00
SimplifyCFG	[SimplifyCFG] Defer folding unconditional branches to LateSimplifyCFG if it can destroy canonical loop structure.	2017-07-19 08:53:34 +00:00
Sink	Enhance synchscope representation	2017-07-11 22:23:00 +00:00
SLPVectorizer	[SLP] A test for limiting vectorization of instructions, NFC.	2017-06-30 14:37:32 +00:00
SpeculativeExecution	Revert r301950: SpeculativeExecution: Stop using whitelist for costs	2017-05-10 12:30:07 +00:00
SROA	[SROA] Fix APInt size when alloca address space is not 0	2017-06-27 18:26:06 +00:00
StraightLineStrengthReduce
StripDeadPrototypes
StripSymbols
StructurizeCFG	Revert "StructurizeCFG: Directly invert cmp instructions"	2017-04-24 20:25:01 +00:00
TailCallElim	[TRE] Add another test for OptRemark.	2017-07-19 21:39:51 +00:00
ThinLTOBitcodeWriter	ThinLTO Minimized Bitcode File Size Reduction	2017-07-21 17:25:20 +00:00
Util	PredicateInfo: Don't insert conditional info when a conditional branch jumps to the same target regardless of condition	2017-06-14 21:19:52 +00:00
WholeProgramDevirt	Skip CFI for dead functions.	2017-06-02 18:24:23 +00:00