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Finish treating the Unsafe APIs as JIT intrinsics #69220
Description
A majority of the APIs on System.Runtime.CompilerServices.Unsafe were converted to be JIT intrinsics as part of #68739 and later more as part of #85562
The remaining unhandled ones are:
NI_SRCS_UNSAFE_CopyBlockNI_SRCS_UNSAFE_CopyBlockUnalignedNI_SRCS_UNSAFE_InitBlockNI_SRCS_UNSAFE_InitBlockUnalignedNI_SRCS_UNSAFE_Unbox
We should ensure these are likewise handled as JIT intrinsics to further improve code quality and JIT throughput where possible
category:implementation
theme:intrinsics
skill-level:intermediate
cost:small
impact:small
Activity
jkotas commentedon May 12, 2022
Once this is done, we can switch these intrinsics onto the same plan as hardware intrinsics, implement them using self-recursive pattern in C# and delete the IL intrinsic expansion in VM/AOT (
getILIntrinsicImplementationForUnsafeandInternal.IL.Stubs.UnsafeIntrinsics).JulieLeeMSFT commentedon May 14, 2022
Cc @dotnet/jit-contrib.
deeprobin commentedon May 24, 2022
Is this easy for JIT-newbies?
Intrinsify more methods in Unsafe
MichalPetryka commentedon Jul 23, 2023
NI_SRCS_UNSAFE_Copy,NI_SRCS_UNSAFE_Read,NI_SRCS_UNSAFE_ReadUnaligned,NI_SRCS_UNSAFE_WriteandNI_SRCS_UNSAFE_WriteUnalignedcan be removed from the list now.