[llvm-branch-commits] [llvm] release/19.x: [AArch64] Add streaming-mode stack hazard optimization remarks (#101695) (PR #102168)

[Hari Limaye via llvm-branch-commits]

hazzlim wrote:

This is useful for users in conjunction with https://github.com/llvm/llvm-project/commit/4b9bcabdf05346fd72db0d1ad88faa9b969a8f13 but requires them to be using the same compiler (so that spills occur in the same places).

It should be safe as it is very much opt-in via `-aarch64-stack-hazard-size` / `-aarch64-stack-hazard-remark-size` flags.

https://github.com/llvm/llvm-project/pull/102168