Implement SVE2 ConvertToSingleOdd and ConvertToSingleRoundToOdd

[SwapnilGaikwad]

Contributes to #94018

@dotnet/arm64-contrib @amanasifkhalid @a74nh

Co-authored-by: @jacob-crawley

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[amanasifkhalid]

There are some failures in CI to look at: console log.

[a74nh]

This LGTM to me now. Thanks.

[a74nh]

@jeffhandley jeffhandley added this to the 11.0.0 milestone yesterday

If possible it would be good to get this into .NET10 as it will then finish the FP group.

[JulieLeeMSFT]

cc @dotnet/jit-contrib for code review.

[jeffhandley]

@a74nh we will try. Even though it's a small change, it would need approval for adding new APIs into .NET 10 RC2 so we need to be extra thorough. We have low availability the next couple of weeks to achieve that. But if we do get it merged in next week, we can seek approval to backport it into .NET 10.

/cc @artl93 for heads-up this might be a candidate for RC2 backport next week as it would finish the Floating Point category of Arm intrinsics, and it's all within an [Experimental] class of APIs.

[a74nh]

@a74nh we will try. Even though it's a small change, it would need approval for adding new APIs into .NET 10 RC2 so we need to be extra thorough. We have low availability the next couple of weeks to achieve that. But if we do get it merged in next week, we can seek approval to backport it into .NET 10.

Ok thanks, understood.

#119201 is also waiting, but that one is a new group (scatters), and there will be a follow on to PR to finish the group. So if we can't get both the scatters into .NET 10, then it'll be better to leave those two until 11.

[jeffhandley]

@SwapnilGaikwad Can you resolve the merge conflicts that have arisen please?

[SwapnilGaikwad]

@SwapnilGaikwad Can you resolve the merge conflicts that have arisen please?

Done.