[llvm-branch-commits] [llvm] release/19.x: [RISCV] Use APInt in isSimpleVIDSequence to account for index overflow (#100072) (PR #101124)

[Philip Reames via llvm-branch-commits]

preames wrote:

Talked with Luke about this one offline.  On reflection, both of us are a bit unsure about the balance of risk vs reward here.  The miscompile is not a regression, and occurs in what we think is a pretty unusual configuration.  The fix landed recently, and while there's no known problems, there's always risk in a backport.  This could easily go either way, but I think we can skip backporting this.  

https://github.com/llvm/llvm-project/pull/101124