Roman Lebedev 620b3da38f [InstCombine] Simplify 'add' to 'or' if no common bits are set. ... Summary: In order to get the whole fold as specified in [[ https://bugs.llvm.org/show_bug.cgi?id=6773 | PR6773 ]], let's first handle the simple straight-forward things. Let's start with the `and` -> `or` simplification. The one obvious thing missing here: the constant mask is not handled. I have an idea how to handle it, but it will require some thinking, and is not strictly required here, so i've left that for later. https://rise4fun.com/Alive/Pkmg Reviewers: spatel, craig.topper, eli.friedman, jingyue Reviewed By: spatel Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D45631 llvm-svn: 330101		2018-04-15 18:59:33 +00:00
..
ADCE	…
AddDiscriminators	Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1)	2018-01-19 17:13:12 +00:00
AggressiveInstCombine	[AggressiveInstCombine] Fixed TruncCombine class to handle TruncInst leaf node correctly.	2018-01-31 22:39:05 +00:00
AlignmentFromAssumptions	[AlignmentFromAssumptions] Set source and dest alignments of memory intrinsiscs separately	2018-02-22 18:55:59 +00:00
ArgumentPromotion	[ArgumentPromotion] don't break musttail invariant PR36543	2018-03-02 00:59:27 +00:00
AtomicExpand	…
BDCE	[BDCE] Salvage debug info from dying insts	2018-02-21 01:55:33 +00:00
BlockExtractor	BlockExtractor: Don’t delete functions directly	2018-03-12 22:28:18 +00:00
BranchFolding	…
CallSiteSplitting	[CallSiteSplitting] Do not perform callsite splitting inside landing pad	2018-04-05 04:16:23 +00:00
CalledValuePropagation	Add CalledValuePropagation pass	2017-10-25 13:40:08 +00:00
CodeExtractor	[PartialInlining] Use isInlineViable to detect constructs preventing inlining.	2018-03-10 14:53:44 +00:00
CodeGenPrepare	[CGP] Fix the remove of matched phis in complex addressing mode	2018-03-12 03:50:07 +00:00
ConstProp	[TargetLibraryInfo] fix finite mathlib function availability	2018-01-08 17:38:09 +00:00
ConstantHoisting	Fix out-of-order stepping behavior in programs with hoisted constants.	2017-11-09 20:01:31 +00:00
ConstantMerge	…
Coroutines	[coroutines] Respect alloca alignment requirements when building coroutine frame	2018-04-03 20:54:20 +00:00
CorrelatedValuePropagation	[CVP] simplify phi with constant incoming values that match common variable edge values	2018-04-10 20:42:39 +00:00
CrossDSOCFI	…
DCE	[DCE] Salvage debug info from dead insts	2018-02-15 22:26:18 +00:00
DeadArgElim	[DeadArgElim] Remove allocsize attributes on callsites	2018-04-12 02:06:01 +00:00
DeadStoreElimination	[DSE] Add tests for atomic memory intrinsics (NFC)	2018-04-11 19:46:02 +00:00
DivRemPairs	…
EarlyCSE	[EarlyCSE] Don't hide earler invariant.scopes	2018-03-15 18:12:27 +00:00
EliminateAvailableExternally	…
EntryExitInstrumenter	EntryExitInstrumenter: Handle musttail calls	2018-04-06 10:14:09 +00:00
ExpandMemCmp/X86	[x86, MemCmpExpansion] allow 2 pairs of loads per block (PR33325)	2018-01-06 16:16:04 +00:00
Float2Int	…
ForcedFunctionAttrs	…
FunctionAttrs	[PM][FunctionAttrs] add NoUnwind attribute inference to PostOrderFunctionAttrs pass	2018-03-23 21:46:16 +00:00
FunctionImport	[ThinLTO] Add an import cutoff for debugging/triaging	2018-04-01 15:54:40 +00:00
GCOVProfiling	…
GVN	Mark MergedLoadStoreMotion as not preserving MemDep results	2018-02-23 10:41:57 +00:00
GVNHoist	[NFC] fix trivial typos in documents and comments	2018-04-12 05:53:20 +00:00
GVNSink	Add an @llvm.sideeffect intrinsic	2017-11-08 21:59:51 +00:00
GlobalDCE	…
GlobalMerge	…
GlobalOpt	[GlobalOpt] Fix support for casts in ctors.	2018-04-06 15:54:47 +00:00
GlobalSplit	…
GuardWidening	…
IPConstantProp	[IPSCCP] do not break musttail invariant (PR36485)	2018-03-01 01:19:18 +00:00
IRCE	[IRCE] isKnownNonNegative helper function	2018-04-12 12:49:40 +00:00
IndVarSimplify	[SCEV] Prove implications for SCEVUnknown Phis	2018-04-04 05:46:47 +00:00
IndirectBrExpand	Introduce the "retpoline" x86 mitigation technique for variant #2 of the speculative execution vulnerabilities disclosed today, specifically identified by CVE-2017-5715, "Branch Target Injection", and is one of the two halves to Spectre..	2018-01-22 22:05:25 +00:00
InferAddressSpaces	[AMDGPU] Switch to the new addr space mapping by default	2018-02-02 16:07:16 +00:00
InferFunctionAttrs	…
Inline	Don't inline @llvm.icall.branch.funnel	2018-04-04 21:46:27 +00:00
InstCombine	[InstCombine] Simplify 'add' to 'or' if no common bits are set.	2018-04-15 18:59:33 +00:00
InstMerge	…
InstNamer	…
InstSimplify	[PatternMatch] allow undef elements when matching vector FP +0.0	2018-03-25 21:16:33 +00:00
InterleavedAccess	[X86][LLVM]Expanding Supports lowerInterleaved{store|load}() in X86InterleavedAccess (VF64 stride 3-4)	2017-10-02 07:35:25 +00:00
Internalize	…
JumpThreading	[SSAUpdaterBulk] Handle CFG with unreachable from entry blocks.	2018-04-10 02:16:29 +00:00
LCSSA	[Test] Fix the test to output to /dev/null instead of redirecting.	2018-02-23 19:03:04 +00:00
LICM	[LICM] Salvage DI from dying Instructions	2018-03-18 15:59:19 +00:00
LoadStoreVectorizer	AMDGPU: enable 128-bit for local addr space under an option	2018-04-10 22:48:23 +00:00
LoopDataPrefetch	…
LoopDeletion	[LoopDeletion] Handle users in unreachable block	2018-01-12 07:24:43 +00:00
LoopDistribute	…
LoopIdiom	Adding a width of the GEP index to the Data Layout.	2018-02-14 06:58:08 +00:00
LoopInterchange	[LoopInterchange] Require asserts for test using -stats (NFC)	2018-04-05 13:07:39 +00:00
LoopLoadElim	…
LoopPredication	[LoopPredication] Add profitability check based on BPI	2018-03-22 16:03:59 +00:00
LoopReroll	…
LoopRotate	[LoopRotate] Rotate loops with loop exiting latches	2018-04-01 12:48:24 +00:00
LoopSimplify	[SCEV] Make exact taken count calculation more optimistic	2018-03-27 07:30:38 +00:00
LoopSimplifyCFG	…
LoopStrengthReduce	Revert "[PowerPC] LSR tunings for PowerPC"	2018-03-09 16:08:55 +00:00
LoopUnroll	[LoopUnroll] Make LoopPeeling respect the AllowPeeling preference.	2018-04-06 13:57:21 +00:00
LoopUnswitch	[SimplifyCFG] Re-apply Relax restriction for folding unconditional branches	2018-02-08 07:16:29 +00:00
LoopVectorize	[LV] Introduce TTI::getMinimumVF	2018-04-13 20:16:32 +00:00
LoopVersioning	…
LoopVersioningLICM	…
LowerAtomic	…
LowerExpectIntrinsic	…
LowerGuardIntrinsic	…
LowerInvoke	…
LowerSwitch	…
LowerTypeTests	Use branch funnels for virtual calls when retpoline mitigation is enabled.	2018-03-09 19:11:44 +00:00
Mem2Reg	[Debugify] Add a pass to test debug info preservation	2017-12-08 21:57:28 +00:00
MemCpyOpt	[MemCpyOpt] Update to new API for memory intrinsic alignment	2018-03-21 14:14:55 +00:00
MergeFunc	Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1)	2018-01-19 17:13:12 +00:00
MergeICmps	[MergeICmp] Split blocks that do other work.	2018-04-09 13:14:06 +00:00
MetaRenamer	Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1)	2018-01-19 17:13:12 +00:00
NameAnonGlobals	…
NaryReassociate	Add early exit on reassociation of 0 expression.	2018-03-07 02:17:08 +00:00
NewGVN	NFC: Update NewGVN invariant.group test	2018-04-08 16:04:09 +00:00
ObjCARC	[ObjCARC] Add funclet token to ARC marker	2018-03-20 20:45:41 +00:00
PGOProfile	[PGO] Fix branch probability remarks assert	2018-03-27 18:55:56 +00:00
PartiallyInlineLibCalls	[PartiallyInlineLibCalls][x86] add TTI hook to allow sqrt inlining to depend on arg rather than result	2017-11-27 21:15:43 +00:00
PhaseOrdering	Adding a width of the GEP index to the Data Layout.	2018-02-14 06:58:08 +00:00
PlaceSafepoints	Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1)	2018-01-19 17:13:12 +00:00
PreISelIntrinsicLowering	…
PruneEH	[PM][FunctionAttrs] add NoUnwind attribute inference to PostOrderFunctionAttrs pass	2018-03-23 21:46:16 +00:00
Reassociate	[InstCombine] Enable Add/Sub simplifications with only 'reassoc' FMF	2018-04-14 19:18:28 +00:00
Reg2Mem	…
RewriteStatepointsForGC	[RewriteStatepoints] Fix stale parse points	2018-03-05 22:27:30 +00:00
SCCP	Revert r328307: [IPSCCP] Use constant range information for comparisons of parameters.	2018-03-23 12:49:39 +00:00
SLPVectorizer	[SLP] update a test case. NFC.	2018-04-11 15:09:49 +00:00
SROA	[SROA] Take advantage of separate alignments for memcpy source and destination	2018-03-13 14:25:33 +00:00
SafeStack	[SafeStack] Use updated CreateMemCpy API to set more accurate source and destination alignments.	2018-02-12 22:39:47 +00:00
SampleProfile	Profiling tests: Endianess XFAIL for powerpc- (32-bit)	2018-01-09 20:09:23 +00:00
Scalarizer	…
SeparateConstOffsetFromGEP	[AMDGPU] Change constant addr space to 4	2018-02-13 18:00:25 +00:00
SimpleLoopUnswitch	[PM/Unswitch] Teach SimpleLoopUnswitch to do non-trivial unswitching,	2017-11-17 19:58:36 +00:00
SimplifyCFG	[DebugInfo] Create merged locations for instructions other than calls	2018-04-12 20:58:24 +00:00
Sink	[Sink] Really really fix predicate in legality check	2018-01-11 21:28:57 +00:00
SpeculateAroundPHIs	Add a new pass to speculate around PHI nodes with constant (integer) operands when profitable.	2017-11-28 11:32:31 +00:00
SpeculativeExecution	…
StraightLineStrengthReduce	…
StripDeadPrototypes	…
StripSymbols	…
StructurizeCFG	StructurizeCFG: Test for branch divergence correctly	2018-04-04 10:58:15 +00:00
SyntheticCountsPropagation	Add a pass to generate synthetic function entry counts.	2018-01-09 19:39:35 +00:00
TailCallElim	Remove this test	2017-11-28 22:39:38 +00:00
ThinLTOBitcodeWriter	[ThinLTO] fix test failure without x86 backend	2018-02-06 07:03:09 +00:00
Util	LowerDbgDeclare: ignore dbg.declares for allocas with volatile access	2018-03-09 00:45:04 +00:00
WholeProgramDevirt	Runtime flag to control branch funnel threshold	2018-04-06 21:32:36 +00:00