forked from OSchip/llvm-project
7a6c89427c
When sampleFDO is enabled, people may expect they can use -fno-profile-sample-use to opt-out using sample profile for a certain file. That could be either for debugging purpose or for performance tuning purpose. However, when thinlto is enabled, if a function in file A compiled with -fno-profile-sample-use is imported to another file B compiled with -fprofile-sample-use, the inlined copy of the function in file B may still get its profile annotated. The inconsistency may even introduce profile unused warning because if the target is not compiled with explicit debug information flag, the function in file A won't have its debug information enabled (debug information will be enabled implicitly only when -fprofile-sample-use is used). After it is imported into file B which is compiled with -fprofile-sample-use, profile annotation for the outline copy of the function will fail because the function has no debug information, and that will trigger profile unused warning. We add a new attribute use-sample-profile to control whether a function will use its sample profile no matter for its outline or inline copies. That will make the behavior of -fno-profile-sample-use consistent. Differential Revision: https://reviews.llvm.org/D79959 |
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| ADCE | ||
| AddDiscriminators | ||
| AggressiveInstCombine | ||
| AlignmentFromAssumptions | ||
| ArgumentPromotion | ||
| AtomicExpand | ||
| Attributor | ||
| BDCE | ||
| BlockExtractor | ||
| BranchFolding | ||
| CallSiteSplitting | ||
| CalledValuePropagation | ||
| CanonicalizeAliases | ||
| CanonicalizeFreezeInLoops | ||
| CodeExtractor | ||
| CodeGenPrepare | ||
| ConstProp | ||
| ConstantHoisting | ||
| ConstantMerge | ||
| Coroutines | ||
| CorrelatedValuePropagation | ||
| CrossDSOCFI | ||
| DCE | ||
| DeadArgElim | ||
| DeadStoreElimination | ||
| DivRemPairs | ||
| EarlyCSE | ||
| EliminateAvailableExternally | ||
| EntryExitInstrumenter | ||
| ExpandMemCmp | ||
| FixIrreducible | ||
| Float2Int | ||
| ForcedFunctionAttrs | ||
| FunctionAttrs | ||
| FunctionImport | ||
| GCOVProfiling | ||
| GVN | ||
| GVNHoist | ||
| GVNSink | ||
| GlobalDCE | ||
| GlobalMerge | ||
| GlobalOpt | ||
| GlobalSplit | ||
| GuardWidening | ||
| HardwareLoops | ||
| HotColdSplit | ||
| IPConstantProp | ||
| IRCE | ||
| IndVarSimplify | ||
| IndirectBrExpand | ||
| InferAddressSpaces | ||
| InferFunctionAttrs | ||
| Inline | ||
| InstCombine | ||
| InstMerge | ||
| InstNamer | ||
| InstSimplify | ||
| InterleavedAccess | ||
| Internalize | ||
| JumpThreading | ||
| LCSSA | ||
| LICM | ||
| LoadStoreVectorizer | ||
| LoopDataPrefetch | ||
| LoopDeletion | ||
| LoopDistribute | ||
| LoopFusion | ||
| LoopIdiom | ||
| LoopInstSimplify | ||
| LoopInterchange | ||
| LoopLoadElim | ||
| LoopPredication | ||
| LoopReroll | ||
| LoopRotate | ||
| LoopSimplify | ||
| LoopSimplifyCFG | ||
| LoopStrengthReduce | ||
| LoopTransformWarning | ||
| LoopUnroll | ||
| LoopUnrollAndJam | ||
| LoopUnswitch | ||
| LoopVectorize | ||
| LoopVersioning | ||
| LoopVersioningLICM | ||
| LowerAtomic | ||
| LowerConstantIntrinsics | ||
| LowerExpectIntrinsic | ||
| LowerGuardIntrinsic | ||
| LowerInvoke | ||
| LowerMatrixIntrinsics | ||
| LowerSwitch | ||
| LowerTypeTests | ||
| LowerWidenableCondition | ||
| MakeGuardsExplicit | ||
| Mem2Reg | ||
| MemCpyOpt | ||
| MergeFunc | ||
| MergeICmps | ||
| MetaRenamer | ||
| NameAnonGlobals | ||
| NaryReassociate | ||
| NewGVN | ||
| ObjCARC | ||
| OpenMP | ||
| PGOProfile | ||
| PartiallyInlineLibCalls | ||
| PhaseOrdering | ||
| PlaceSafepoints | ||
| PreISelIntrinsicLowering | ||
| PruneEH | ||
| Reassociate | ||
| Reg2Mem | ||
| RewriteStatepointsForGC | ||
| SCCP | ||
| SLPVectorizer | ||
| SROA | ||
| SafeStack | ||
| SampleProfile | ||
| ScalarizeMaskedMemIntrin/X86 | ||
| Scalarizer | ||
| SeparateConstOffsetFromGEP | ||
| SimpleLoopUnswitch | ||
| SimplifyCFG | ||
| Sink | ||
| SpeculateAroundPHIs | ||
| SpeculativeExecution | ||
| StraightLineStrengthReduce | ||
| StripDeadPrototypes | ||
| StripSymbols | ||
| StructurizeCFG | ||
| SyntheticCountsPropagation | ||
| TailCallElim | ||
| ThinLTOBitcodeWriter | ||
| TypePromotion/ARM | ||
| UnifyLoopExits | ||
| UniqueInternalLinkageNames | ||
| Util | ||
| VectorCombine/X86 | ||
| WholeProgramDevirt | ||