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add rcl/rcr throughput and latency info #111442

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This resolves #110415

More details were discussed in #110415 (comment)

the missing tp/latency info is for INS_rcr_N/INS_rcl_N, which stands for rcr/rcl, r/m, imm8, so as measured in uops.info, latency is 6 cycles and throughput is also 6 cycles.

Plus this PR also added REX2 encoding to the instructions.

@dotnet-issue-labeler dotnet-issue-labeler bot added the area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI label Jan 14, 2025
@dotnet-policy-service dotnet-policy-service bot added the community-contribution Indicates that the PR has been added by a community member label Jan 14, 2025
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[X86] add missing TP and latency information for rcl_N/rcr_N
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