[llvm] [RISCV][GlobalISel] Vector Extension vadd Legalizer (PR #71400)

[Jiahan Xie via llvm-commits]

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+# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
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jiahanxie353 wrote:

yes, I will append them there, now it's just easier for me to test 

When I append the tests there, since we have [rv32](https://github.com/llvm/llvm-project/tree/main/llvm/test/CodeGen/RISCV/GlobalISel/legalizer/rv32) and [rv64](https://github.com/llvm/llvm-project/tree/main/llvm/test/CodeGen/RISCV/GlobalISel/legalizer/rv64), should I just keep all the test cases the same but just change `-mtriple=riscv32` and `-mtriple=riscv64`?

https://github.com/llvm/llvm-project/pull/71400