[JIT] ARM64 instructions cmle cmlt fcmle fcmlt are not emitted anywhere

[TIHan]

When doing this work: #64783, I noticed that the ARM64 instructions cmle cmlt fcmle fcmlt are not being emitted anywhere and we have no corresponding HW intrinsic APIs for them. We should find places where we can take advantage of these instructions.

category:cq
theme:emitter
skill-level:beginner
cost:small
impact:small

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Issue Details

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When doing this work: #64783, I noticed that the ARM64 instructions cmle cmlt fcmle fcmlt are not being emitted anywhere and we have no corresponding HW intrinsic APIs to them.

Author:	TIHan
Assignees:	-
Labels:	area-CodeGen-coreclr, untriaged
Milestone:	-

[TIHan]

cc @tannergooding

[tannergooding]

👍. Just capturing what we were discussing offline...

This is one where we probably don't want a new managed intrinsic but rather where we can update lowering to do the containment and codegen to emit this for the existing AdvSimd.CompareLessThanOrEqual intrinsics when op2 is 0.
-- Basically what you did in #64783, but with the "is contained" and instruction change here: https://github.com/dotnet/runtime/blob/main/src/coreclr/jit/hwintrinsiccodegenarm64.cpp#L525-L538