[llvm] [RISCV][GlobalISel] Legalize G_ADD, G_SUB, G_AND, G_OR, G_XOR on RISC-V Vector Extension (PR #71400)

[Jiahan Xie via llvm-commits]

jiahanxie353 wrote:

> Can you update the description of your PR to what you'd like the commit message to be?

Sure! Are you asking this because every patch will be squashed to one commit and the commit message is a summary of the patch?

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