[all-commits] [llvm/llvm-project] e1a702: [GVN] Refactor findDominatingLoad function

[Sergey Kachkov via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: e1a702db2fcd1dfbfe175efe334135d184234970
      https://github.com/llvm/llvm-project/commit/e1a702db2fcd1dfbfe175efe334135d184234970
  Author: Sergey Kachkov <sergey.kachkov at syntacore.com>
  Date:   2023-01-20 (Fri, 20 Jan 2023)

  Changed paths:
    M llvm/lib/Transforms/Scalar/GVN.cpp
    M llvm/test/Transforms/GVN/PRE/pre-load-through-select.ll

  Log Message:
  -----------
  [GVN] Refactor findDominatingLoad function

Improve findDominatingLoad implementation:
1. Result is saved into gvn::AvailableValue struct
2. Search is done in extended BB (while there is a single predecessor or
   limit is reached)

Differential Revision: https://reviews.llvm.org/D141680