Test

perf: HVP with in-place gradient + inner preparation #1868

Job	Run time
1 - DIT (Standard)	9m 7s
1 - DIT (Weird)	9m 6s
1 - DIT (Formalities)	5m 46s
1 - DIT (Zero)	9m 7s
1 - DI (Back/SparsityDetector)	4m 10s
1 - DI (Back/Enzyme)	4m 28s
1 - DI (Core/ZeroBackends)	4m 27s
1 - DI (Core/Internals)	4m 17s
1 - DI (Back/FiniteDiff)	4s
1 - DI (Core/SimpleFiniteDiff)	4m 28s
1 - DI (Back/ForwardDiff)	4m 27s
1 - DI (Back/DifferentiateWith)	4m 28s
1 - DI (Back/GTPSA)	4m 27s
1 - DI (Back/FiniteDifferences)	4m 27s
1 - DI (Back/Mooncake)	4m 27s
1 - DI (Back/Tracker)	4m 27s
1 - DI (Back/SymbolicBackends)	1m 47s
1 - DI (Down/Flux)	4m 29s
1 - DI (Back/ReverseDiff)	4m 27s
1 - DI (Down/Lux)	1s
1 - DI (Back/PolyesterForwardDiff)	4m 14s
1 - DI (Back/Zygote)	4m 26s
	1h 41m 7s

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