This is a stacked PR. See other PRs below:

[padipiee]

This is a stacked PR. See other PRs below:

1. 👉 [AArch64][SME] Implement the SME ABI (ZA state management) in Machine IR #149062
2. [AArch64][SME] Support Windows/stack probes in MachineSMEABIPass #149063
3. [AArch64][SME] Support agnostic ZA functions in the MachineSMEABIPass #149064
4. [AArch64][SME] Avoid ZA save state changes in loops in MachineSMEABIPass #149065

Originally posted by @MacDue in #149062 (comment)

[llvmbot]

@llvm/issue-subscribers-backend-aarch64

Author: None (padipiee)

This is a stacked PR. See other PRs below:

1. 👉 [AArch64][SME] Implement the SME ABI (ZA state management) in Machine IR #149062
2. [AArch64][SME] Support Windows/stack probes in MachineSMEABIPass #149063
3. [AArch64][SME] Support agnostic ZA functions in the MachineSMEABIPass #149064
4. [AArch64][SME] Avoid ZA save state changes in loops in MachineSMEABIPass #149065

Originally posted by @MacDue in #149062 (comment)

[MacDue]

I don't know why this has been created?