[all-commits] [llvm/llvm-project] 292705: [BOLT] Gadget scanner: refine class names and debu...

[Anatoly Trosinenko via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 2927050dd4f9df5ec85c6ecb0ac1450a8695b242
      https://github.com/llvm/llvm-project/commit/2927050dd4f9df5ec85c6ecb0ac1450a8695b242
  Author: Anatoly Trosinenko <atrosinenko at accesssoftek.com>
  Date:   2025-04-10 (Thu, 10 Apr 2025)

  Changed paths:
    M bolt/include/bolt/Passes/PAuthGadgetScanner.h
    M bolt/lib/Passes/PAuthGadgetScanner.cpp
    M bolt/test/binary-analysis/AArch64/gs-pauth-debug-output.s

  Log Message:
  -----------
  [BOLT] Gadget scanner: refine class names and debug output (NFC) (#135073)

Scanning functions without CFG information as well as the detection of
authentication oracles requires introducing more classes related to
register state analysis. To make the future code easier to understand,
rename several classes beforehand.

To detect authentication oracles, one has to query the properties of
*output* operands of authentication instructions *after* the instruction
is executed - this requires adding another analysis that iterates over
the instructions in reverse order, and a corresponding state class.

As the main difference of the existing `State` class is that it stores
the properties of source register operands of the instructions before
the instruction's execution, rename it to `SrcState` and
`PacRetAnalysis` to `SrcSafetyAnalysis`.

Apply minor adjustments to the debug output along the way.



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