[all-commits] [llvm/llvm-project] 2060bf: [ValueTracking] Add support for non-splat vecs in ...

[Yingwei Zheng via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 2060bfcdc7eb704647c64bf925cdceb94c1f535f
      https://github.com/llvm/llvm-project/commit/2060bfcdc7eb704647c64bf925cdceb94c1f535f
  Author: Yingwei Zheng <dtcxzyw2333 at gmail.com>
  Date:   2023-11-15 (Wed, 15 Nov 2023)

  Changed paths:
    M llvm/lib/Analysis/ValueTracking.cpp
    M llvm/test/Transforms/InstCombine/add.ll
    M llvm/test/Transforms/InstCombine/addsub-constant-folding.ll
    M llvm/test/Transforms/InstCombine/saturating-add-sub.ll

  Log Message:
  -----------
  [ValueTracking] Add support for non-splat vecs in computeConstantRange (#72365)

Related patch: https://github.com/llvm/llvm-project/pull/68331
This missed optimization is discovered with the help of
https://github.com/AliveToolkit/alive2/pull/962.