[all-commits] [llvm/llvm-project] 595ffc: [InstCombine] add tests for add with sub-from-cons...

[Sanjay Patel via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 595ffc56be70d42abeaeac3ee1c47c6eb6c894b3
      https://github.com/llvm/llvm-project/commit/595ffc56be70d42abeaeac3ee1c47c6eb6c894b3
  Author: Sanjay Patel <spatel at rotateright.com>
  Date:   2023-02-20 (Mon, 20 Feb 2023)

  Changed paths:
    M llvm/test/Transforms/InstCombine/addsub-constant-folding.ll

  Log Message:
  -----------
  [InstCombine] add tests for add with sub-from-constant operand; NFC


  Commit: f49d19d50238feabee5364d55db6c40f608530bd
      https://github.com/llvm/llvm-project/commit/f49d19d50238feabee5364d55db6c40f608530bd
  Author: Sanjay Patel <spatel at rotateright.com>
  Date:   2023-02-20 (Mon, 20 Feb 2023)

  Changed paths:
    M llvm/test/Transforms/InstCombine/div.ll

  Log Message:
  -----------
  [InstCombine] add tests for div with muladd operand; NFC

issue #60754


  Commit: 4966d8ebe1bbe5bd6a4d28b36efdbe6dd1659b3f
      https://github.com/llvm/llvm-project/commit/4966d8ebe1bbe5bd6a4d28b36efdbe6dd1659b3f
  Author: Sanjay Patel <spatel at rotateright.com>
  Date:   2023-02-20 (Mon, 20 Feb 2023)

  Changed paths:
    M llvm/lib/Transforms/InstCombine/InstCombineMulDivRem.cpp
    M llvm/test/Transforms/InstCombine/div.ll

  Log Message:
  -----------
  [InstCombine] distribute div over add with matching mul-by-constant

((X * C2) + C1) / C2 --> X + C1/C2
https://alive2.llvm.org/ce/z/P66io8
https://alive2.llvm.org/ce/z/vghegw

This could be made more general -- the multiplier could be a
multiple of the divisor -- but this is the pattern from
issue #60754.


  Commit: 36014a71ebd03fba5ba95c7ac05500240436cad4
      https://github.com/llvm/llvm-project/commit/36014a71ebd03fba5ba95c7ac05500240436cad4
  Author: Sanjay Patel <spatel at rotateright.com>
  Date:   2023-02-20 (Mon, 20 Feb 2023)

  Changed paths:
    M llvm/test/Transforms/InstCombine/2008-01-06-VoidCast.ll

  Log Message:
  -----------
  [InstCombine] auto-generate test CHECK lines; NFC

The check line was not enabled until bfb1559fbe2fb656f3,
and then it was excessive, so the test started failing.


Compare: https://github.com/llvm/llvm-project/compare/bfb1559fbe2f...36014a71ebd0