[all-commits] [llvm/llvm-project] a98c04: [Attributor][FIX] Use liveness information of the ...

[Johannes Doerfert via All-commits]

  Branch: refs/heads/release/14.x
  Home:   https://github.com/llvm/llvm-project
  Commit: a98c04d58930814f4ff00293ffd14feca57feafa
      https://github.com/llvm/llvm-project/commit/a98c04d58930814f4ff00293ffd14feca57feafa
  Author: Johannes Doerfert <johannes at jdoerfert.de>
  Date:   2022-03-02 (Wed, 02 Mar 2022)

  Changed paths:
    M llvm/lib/Transforms/IPO/AttributorAttributes.cpp
    M llvm/test/Transforms/Attributor/IPConstantProp/return-constant.ll
    M llvm/test/Transforms/Attributor/IPConstantProp/return-constants.ll
    M llvm/test/Transforms/Attributor/align.ll
    M llvm/test/Transforms/Attributor/read_write_returned_arguments_scc.ll
    M llvm/test/Transforms/Attributor/value-simplify.ll

  Log Message:
  -----------
  [Attributor][FIX] Use liveness information of the right function

When we use liveness for edges during the `genericValueTraversal` we
need to make sure to use the AAIsDead of the correct function. This
patch adds the proper logic and some simple caching scheme. We also
add an assertion to the `isEdgeDead` call to make sure future misuse
is detected earlier.

Fixes https://github.com/llvm/llvm-project/issues/53872