tree bcf7842cd27aa0cb07fb4d23bc749f0fb3647d98
parent 2daa7a0d004916d0905eb5b71e8d36b2835382e8
author Daniel McIntosh <Daniel.McIntosh@ibm.com> 1638985983 -0500
committer Copybara-Service <copybara-worker@google.com> 1642027025 -0800

[libcxxabi] Pulled guard byte code out of GuardObject

Right now, GuardObject is in charge of both reading and writing to the guard
byte, and co-ordinating with the InitByte... classes. In order to improve
separation of concerns, create a separate class responsible for managing the
guard byte and use that inside GuardObject.

This is the 3rd of 5 changes to overhaul cxa_guard.
See D108343 for what the final result will be.

Depends on D110088

Reviewed By: ldionne, #libc_abi

Differential Revision: https://reviews.llvm.org/D115367

GitOrigin-RevId: 847ea76219899961a7af6d675c0d5512f9a33dea