[llvm] [RISCV][GlobalISel] Legalize scalable vectorized G_ADD, G_SUB, G_AND, G_OR, and G_XOR (PR #71400)

[Michael Maitland via llvm-commits]

michaelmaitland wrote:

> > Can you update PR description, as that will be used for commit body?
> 
> I thought I have already updated it to "[RISCV][GlobalISel] Legalize scalable vectorized G_ADD, G_SUB, G_AND, G_OR, and G_XOR"

It should be different from the title, providing some more information to the reader. Here is some more info. https://llvm.org/docs/DeveloperPolicy.html#commit-messages

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