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llvm-project/llvm/test/Transforms
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Sanjay Patel be23a91fcd [InstCombine] try to reduce x86 addcarry to generic uaddo intrinsic 
If we can reduce the x86-specific intrinsic to the generic op, it allows existing 
simplifications and value tracking folds. AFAICT, this always results in identical 
x86 codegen in the non-reduced case...which should be true because we semi-generically 
(too aggressively IMO) convert to llvm.uadd.with.overflow in CGP, so the DAG/isel must 
already combine/lower this intrinsic as expected.

This isn't quite what was requested in:
https://bugs.llvm.org/show_bug.cgi?id=40486
...but we want to have these kinds of folds early for efficiency and to enable greater 
simplifications. For the case in the bug report where we have:
_addcarry_u64(0, ahi, 0, &ahi)
...this gets completely simplified away in IR.

Differential Revision: https://reviews.llvm.org/D57453

llvm-svn: 352870
 		2019-02-01 14:14:47 +00:00
..
ADCE Remove irrelevant references to legacy git repositories from 2019-01-15 16:18:52 +00:00
AddDiscriminators treat invoke like call 2019-01-15 21:26:51 +00:00
AggressiveInstCombine [AggressiveInstCombine] convert rotate with guard branch into funnel shift (PR34924) 2018-12-17 21:14:51 +00:00
AlignmentFromAssumptions
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ArgumentPromotion Only promote args when function attributes are compatible 2019-01-16 05:15:31 +00:00
AtomicExpand Codegen support for atomicrmw fadd/fsub 2019-01-22 18:36:06 +00:00
BDCE [BDCE] Remove dead uses of arguments 2019-01-04 21:21:43 +00:00
BlockExtractor [hot-cold-split] Name split functions with ".cold" suffix 2018-10-24 18:53:47 +00:00
BranchFolding
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CallSiteSplitting [CallSiteSplitting] Report edge deletion to DomTreeUpdater 2018-11-29 15:27:04 +00:00
CalledValuePropagation
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CanonicalizeAliases [ThinLTO] Handle chains of aliases 2019-01-04 19:04:54 +00:00
CodeExtractor [CodeExtractor] Emit lifetime markers around reloads of outputs 2019-01-19 02:37:59 +00:00
CodeGenPrepare Lower widenable_conditions in CGP 2019-01-31 18:45:46 +00:00
ConstProp [ConstantFolding] Fold undef for integer intrinsics 2019-01-11 21:18:00 +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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Coroutines Remove irrelevant references to legacy git repositories from 2019-01-15 16:18:52 +00:00
CorrelatedValuePropagation [CVP] Use LVI to constant fold deopt operands 2019-01-22 01:34:33 +00:00
CrossDSOCFI
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DCE
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DeadArgElim [IPO][AVR] Create new Functions in the default address space specified in the data layout 2018-12-18 09:52:52 +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 [EarlyCSE] If DI can't be salvaged, mark it as unavailable. 2018-12-17 01:42:39 +00:00
EliminateAvailableExternally
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EntryExitInstrumenter
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ExpandMemCmp/X86 Re-land r349731 "[CodeGen][ExpandMemcmp] Add an option for allowing overlapping loads. 2018-12-20 13:01:04 +00:00
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 Recommit "[ThinLTO] Rename COMDATs for COFF when promoting/renaming COMDAT leader" 2019-01-31 17:18:11 +00:00
GCOVProfiling [DebugInfo] IR/Bitcode changes for DISubprogram flags. 2018-11-28 21:14:32 +00:00
GVN [GVN] Don't perform scalar PRE on GEPs 2018-12-06 16:11:58 +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
GlobalDCE GlobalDCE: Teach isEmptyFunction() to ignore debug intrinsics. 2018-11-16 17:47:21 +00:00
GlobalMerge [GlobalMerge] Allow merging globals with explicit section markings. 2018-08-02 23:54:16 +00:00
GlobalOpt [DebugInfo][GlobalOpt] Fix -debugify for globalopt shrinking globals to booleans. 2018-10-23 16:35:51 +00:00
GlobalSplit
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GuardWidening [GuardWidening] Ignore guards with trivial conditions 2018-08-22 02:40:49 +00:00
HotColdSplit [CodeExtractor] Add support for the `swifterror` attribute 2019-01-28 19:13:37 +00:00
IPConstantProp [IPCP] Don't crash due to arg count/type mismatch between caller/callee 2019-01-29 10:19:44 +00:00
IRCE [IRCE] Support narrow latch condition for wide range checks 2019-01-23 07:20:56 +00:00
IndVarSimplify Return "[IndVars] Smart hard uses detection" 2018-11-08 11:54:35 +00:00
IndirectBrExpand
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InferAddressSpaces Add a 'dynamic' parameter to the objectsize intrinsic 2019-01-30 20:34:35 +00:00
InferFunctionAttrs Allow norecurse attribute on functions that have debug infos. 2018-12-05 16:48:00 +00:00
Inline Provide reason messages for unviable inlining 2019-02-01 10:44:43 +00:00
InstCombine [InstCombine] try to reduce x86 addcarry to generic uaddo intrinsic 2019-02-01 14:14:47 +00:00
InstMerge [DebugInfo][InstMerge] Fix -debugify for phi node created by -mldst-motion 2018-11-02 18:25:41 +00:00
InstNamer
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InstSimplify Commit tests for changes in revision D41940 2019-01-31 07:38:19 +00:00
InterleavedAccess
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Internalize
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JumpThreading [Jump Threading] Unfold a select insn that feeds a switch via a phi node 2019-01-11 15:52:57 +00:00
LCSSA [EH] Rename llvm.x86.seh.recoverfp intrinsic to llvm.eh.recoverfp 2019-01-16 00:37:13 +00:00
LICM [MemorySSA +LICM CFHoist] Solve PR40317. 2019-01-24 19:48:35 +00:00
LoadStoreVectorizer [PM] Port LoadStoreVectorizer to the new pass manager. 2018-12-07 08:23:37 +00:00
LoopDataPrefetch
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LoopDeletion Fix RUN line in test/Transforms/LoopDeletion/crashbc.ll 2019-01-10 09:58:23 +00:00
LoopDistribute [Unroll/UnrollAndJam/Vectorizer/Distribute] Add followup loop attributes. 2018-12-12 17:32:52 +00:00
LoopIdiom [LoopIdiomRecognize] Add CTTZ support 2018-12-26 21:59:48 +00:00
LoopInstSimplify Update MemorySSA in LoopInstSimplify. 2018-08-22 20:05:21 +00:00
LoopInterchange [LoopInterchange] Support reductions across inner and outer loop. 2018-11-08 20:44:19 +00:00
LoopLoadElim
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LoopPredication [LoopPredication] Support guards expressed as branches by widenable condition 2019-01-22 11:49:06 +00:00
LoopReroll Remove irrelevant references to legacy git repositories from 2019-01-15 16:18:52 +00:00
LoopRotate Remove irrelevant references to legacy git repositories from 2019-01-15 16:18:52 +00:00
LoopSimplify Revert r346810 "Preserve loop metadata when splitting exit blocks" 2018-11-14 01:47:32 +00:00
LoopSimplifyCFG [NFC] One more crashing test on LoopSimplifyCFG 2019-01-25 11:47:16 +00:00
LoopStrengthReduce [SCEV] Prohibit SCEV transformations for huge SCEVs 2019-01-31 06:19:25 +00:00
LoopTransformWarning [TransformWarning] Do not warn missed transformations in optnone functions. 2018-12-14 19:45:43 +00:00
LoopUnroll [UnrollRuntime] Fix domTree failures in multiexit unrolling 2019-01-08 17:16:25 +00:00
LoopUnrollAndJam [Unroll/UnrollAndJam/Vectorizer/Distribute] Add followup loop attributes. 2018-12-12 17:32:52 +00:00
LoopUnswitch Update MemorySSA in LoopUnswitch. 2018-09-11 19:19:21 +00:00
LoopVectorize Check bool attribute value in getOptionalBoolLoopAttribute. 2019-01-29 22:33:20 +00:00
LoopVersioning
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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
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LowerWidenableCondition Default lowering for experimental.widenable.condition 2019-01-31 09:10:17 +00:00
MakeGuardsExplicit Introduce llvm.experimental.widenable_condition intrinsic 2018-12-07 14:39:46 +00:00
Mem2Reg [Mem2Reg] Fix nondeterministic corner case 2018-11-30 19:20:02 +00:00
MemCpyOpt [ValueTracking] Look through casts when determining non-nullness 2019-01-26 23:40:35 +00:00
MergeFunc [MergeFunc] Allow merging identical vararg functions using aliases 2019-01-19 02:46:22 +00:00
MergeICmps [MergeICmps] Do not perform the transformation if GEP is used outside of block 2018-11-05 18:16:32 +00:00
MetaRenamer
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NameAnonGlobals
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NaryReassociate
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NewGVN Remove irrelevant references to legacy git repositories from 2019-01-15 16:18:52 +00:00
ObjCARC Teach ObjCARC optimizer about equivalent PHIs when eliminating autoreleaseRV/retainRV pairs 2019-01-03 01:38:08 +00:00
PGOProfile [PGO] Make pgo related options in opt more consistent. 2019-01-16 23:19:02 +00:00
PartiallyInlineLibCalls
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PhaseOrdering [InstCombine] canonicalize raw IR rotate patterns to funnel shift 2019-01-01 21:51:39 +00:00
PlaceSafepoints
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PreISelIntrinsicLowering Preserve the linkage for objc* intrinsics as clang will set them to weak_external in some cases 2018-12-18 22:42:08 +00:00
PruneEH [Transforms] Preserve metadata when converting invoke to call. 2018-12-14 18:15:11 +00:00
Reassociate [PatternMatch] Handle undef vectors consistently 2018-11-20 16:08:19 +00:00
Reg2Mem
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RewriteStatepointsForGC [RS4GC] Expand/standardize tests introduced in rL352059 2019-01-24 16:45:23 +00:00
SCCP [ConstantFold] Use getMinSignedBits for APInt in isIndexInRangeOfArrayType. 2018-12-12 18:55:14 +00:00
SLPVectorizer [TTI] Add generic SADDSAT/SSUBSAT costs 2019-01-27 13:51:59 +00:00
SROA [Analysis] Fix isSafeToLoadUnconditionally handling of volatile. 2019-01-24 21:31:13 +00:00
SafeStack SafeStack: Prevent OOB reads with mem intrinsics 2018-08-30 20:44:51 +00:00
SampleProfile Update entry count for cold calls 2019-01-24 00:55:23 +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 Introduce llvm.loop.parallel_accesses and llvm.access.group metadata. 2018-12-20 04:58:07 +00:00
SeparateConstOffsetFromGEP
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SimpleLoopUnswitch Update MemorySSA in SimpleLoopUnswitch. 2018-12-04 14:23:37 +00:00
SimplifyCFG Introduce llvm.loop.parallel_accesses and llvm.access.group metadata. 2018-12-20 04:58:07 +00:00
Sink
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SpeculateAroundPHIs
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SpeculativeExecution
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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 [LTO] Record whether LTOUnit splitting is enabled in index 2019-01-11 18:31:57 +00:00
Util Remove irrelevant references to legacy git repositories from 2019-01-15 16:18:52 +00:00
WholeProgramDevirt [ThinLTO] Efficiency fix for writing type id records in per-module indexes 2018-09-25 20:14:40 +00:00