llvm-project

903f6fce - [RISCV] Prune dead LI in vsetvli coalescing with trivially dead vsetvli (#98647)

[RISCV] Prune dead LI in vsetvli coalescing with trivially dead vsetvli (#98647) This is a follow up to ff8a03a7. On the review for that, I'd suggested a stylistic rework, but after discussion we decided to move forward with the fix as it was. This change is a small part of that suggested rework. Once I sat down and wrote the code, I think I've convinced myself of an entirely different approach (tbd), but for the moment, let's use a lambda to share code so that we can pickup a missed optimization, and reduce some duplication. --------- Co-authored-by: Luke Lau <luke_lau@icloud.com>