[llvm] [TableGen][RISCV][GlobalISel] Select G_ICMP, G_SELECT, G_PTR_ADD (PR #67185)

[Nitin John Raj via llvm-commits]

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+# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
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nitinjohnraj wrote:

The tests for constant and copy don't follow this naming structure. We might want to change that in the future.

https://github.com/llvm/llvm-project/pull/67185