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llvm/include/llvm/Analysis/TargetTransformInfo.h
| Show First 20 Lines • Show All 539 Lines • ▼ Show 20 Lines | public: | ||||
| /// vector loop, which can avoid the need to emit a scalar epilogue loop. | /// vector loop, which can avoid the need to emit a scalar epilogue loop. | ||||
| bool preferPredicateOverEpilogue(Loop *L, LoopInfo *LI, ScalarEvolution &SE, | bool preferPredicateOverEpilogue(Loop *L, LoopInfo *LI, ScalarEvolution &SE, | ||||
| AssumptionCache &AC, TargetLibraryInfo *TLI, | AssumptionCache &AC, TargetLibraryInfo *TLI, | ||||
| DominatorTree *DT, | DominatorTree *DT, | ||||
| LoopVectorizationLegality *LVL, | LoopVectorizationLegality *LVL, | ||||
| InterleavedAccessInfo *IAI) const; | InterleavedAccessInfo *IAI) const; | ||||
| /// Query the target what the preferred style of tail folding is. | /// Query the target what the preferred style of tail folding is. | ||||
| TailFoldingStyle getPreferredTailFoldingStyle() const; | /// \param IVUpdateMayOverflow Tells whether it is known if the IV update | ||||
| /// may (or will never) overflow for the suggested VF/UF in the given loop. | |||||
| /// Targets can use this information to select a more optimal tail folding | |||||
| /// style. The value conservatively defaults to true, such that no assumptions | |||||
| /// are made on overflow. | |||||
| TailFoldingStyle | |||||
| getPreferredTailFoldingStyle(bool IVUpdateMayOverflow = true) const; | |||||
| // Parameters that control the loop peeling transformation | // Parameters that control the loop peeling transformation | ||||
| struct PeelingPreferences { | struct PeelingPreferences { | ||||
| /// A forced peeling factor (the number of bodied of the original loop | /// A forced peeling factor (the number of bodied of the original loop | ||||
| /// that should be peeled off before the loop body). When set to 0, the | /// that should be peeled off before the loop body). When set to 0, the | ||||
| /// a peeling factor based on profile information and other factors. | /// a peeling factor based on profile information and other factors. | ||||
| unsigned PeelCount; | unsigned PeelCount; | ||||
| /// Allow peeling off loop iterations. | /// Allow peeling off loop iterations. | ||||
| ▲ Show 20 Lines • Show All 1,088 Lines • ▼ Show 20 Lines | virtual bool isHardwareLoopProfitable(Loop *L, ScalarEvolution &SE, | ||||
| AssumptionCache &AC, | AssumptionCache &AC, | ||||
| TargetLibraryInfo *LibInfo, | TargetLibraryInfo *LibInfo, | ||||
| HardwareLoopInfo &HWLoopInfo) = 0; | HardwareLoopInfo &HWLoopInfo) = 0; | ||||
| virtual bool | virtual bool | ||||
| preferPredicateOverEpilogue(Loop *L, LoopInfo *LI, ScalarEvolution &SE, | preferPredicateOverEpilogue(Loop *L, LoopInfo *LI, ScalarEvolution &SE, | ||||
| AssumptionCache &AC, TargetLibraryInfo *TLI, | AssumptionCache &AC, TargetLibraryInfo *TLI, | ||||
| DominatorTree *DT, LoopVectorizationLegality *LVL, | DominatorTree *DT, LoopVectorizationLegality *LVL, | ||||
| InterleavedAccessInfo *IAI) = 0; | InterleavedAccessInfo *IAI) = 0; | ||||
| virtual TailFoldingStyle getPreferredTailFoldingStyle() = 0; | virtual TailFoldingStyle | ||||
| getPreferredTailFoldingStyle(bool IVUpdateMayOverflow = true) = 0; | |||||
| virtual std::optional<Instruction *> instCombineIntrinsic( | virtual std::optional<Instruction *> instCombineIntrinsic( | ||||
| InstCombiner &IC, IntrinsicInst &II) = 0; | InstCombiner &IC, IntrinsicInst &II) = 0; | ||||
| virtual std::optional<Value *> simplifyDemandedUseBitsIntrinsic( | virtual std::optional<Value *> simplifyDemandedUseBitsIntrinsic( | ||||
| InstCombiner &IC, IntrinsicInst &II, APInt DemandedMask, | InstCombiner &IC, IntrinsicInst &II, APInt DemandedMask, | ||||
| KnownBits & Known, bool &KnownBitsComputed) = 0; | KnownBits & Known, bool &KnownBitsComputed) = 0; | ||||
| virtual std::optional<Value *> simplifyDemandedVectorEltsIntrinsic( | virtual std::optional<Value *> simplifyDemandedVectorEltsIntrinsic( | ||||
| InstCombiner &IC, IntrinsicInst &II, APInt DemandedElts, | InstCombiner &IC, IntrinsicInst &II, APInt DemandedElts, | ||||
| APInt &UndefElts, APInt &UndefElts2, APInt &UndefElts3, | APInt &UndefElts, APInt &UndefElts2, APInt &UndefElts3, | ||||
| ▲ Show 20 Lines • Show All 384 Lines • ▼ Show 20 Lines | public: | ||||
| } | } | ||||
| bool preferPredicateOverEpilogue(Loop *L, LoopInfo *LI, ScalarEvolution &SE, | bool preferPredicateOverEpilogue(Loop *L, LoopInfo *LI, ScalarEvolution &SE, | ||||
| AssumptionCache &AC, TargetLibraryInfo *TLI, | AssumptionCache &AC, TargetLibraryInfo *TLI, | ||||
| DominatorTree *DT, | DominatorTree *DT, | ||||
| LoopVectorizationLegality *LVL, | LoopVectorizationLegality *LVL, | ||||
| InterleavedAccessInfo *IAI) override { | InterleavedAccessInfo *IAI) override { | ||||
| return Impl.preferPredicateOverEpilogue(L, LI, SE, AC, TLI, DT, LVL, IAI); | return Impl.preferPredicateOverEpilogue(L, LI, SE, AC, TLI, DT, LVL, IAI); | ||||
| } | } | ||||
| TailFoldingStyle getPreferredTailFoldingStyle() override { | TailFoldingStyle | ||||
| return Impl.getPreferredTailFoldingStyle(); | getPreferredTailFoldingStyle(bool IVUpdateMayOverflow = true) override { | ||||
| return Impl.getPreferredTailFoldingStyle(IVUpdateMayOverflow); | |||||
| } | } | ||||
| std::optional<Instruction *> | std::optional<Instruction *> | ||||
| instCombineIntrinsic(InstCombiner &IC, IntrinsicInst &II) override { | instCombineIntrinsic(InstCombiner &IC, IntrinsicInst &II) override { | ||||
| return Impl.instCombineIntrinsic(IC, II); | return Impl.instCombineIntrinsic(IC, II); | ||||
| } | } | ||||
| std::optional<Value *> | std::optional<Value *> | ||||
| simplifyDemandedUseBitsIntrinsic(InstCombiner &IC, IntrinsicInst &II, | simplifyDemandedUseBitsIntrinsic(InstCombiner &IC, IntrinsicInst &II, | ||||
| APInt DemandedMask, KnownBits &Known, | APInt DemandedMask, KnownBits &Known, | ||||
| ▲ Show 20 Lines • Show All 667 Lines • Show Last 20 Lines | |||||