[llvm] [BOLT] Gadget scanner: detect authentication oracles (PR #135663)

[Anatoly Trosinenko via llvm-commits]

https://github.com/atrosinenko commented:

Sorry for the delay. Finally managed to fix the remaining issue: I simplified the rule to only allow wiping by overwriting with a constant, which is mostly obvious to reason about: f7e1867445c54662be4e25d00a4b3b580060506a.

Added several trivial fixes in 2a43e9b3fecc6e74ef99ceb570a1d873e598ba09.

https://github.com/llvm/llvm-project/pull/135663