[all-commits] [llvm/llvm-project] 07a6d0: [InstCombine] add tests for srem+abs; NFC

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  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 07a6d07c482706268caa9c4f9e3a13d71f9c7fb9
      https://github.com/llvm/llvm-project/commit/07a6d07c482706268caa9c4f9e3a13d71f9c7fb9
  Author: Sanjay Patel <spatel at rotateright.com>
  Date:   2021-03-31 (Wed, 31 Mar 2021)

  Changed paths:
    M llvm/test/Transforms/InstCombine/abs-intrinsic.ll

  Log Message:
  -----------
  [InstCombine] add tests for srem+abs; NFC


  Commit: 1462bdf1b985256fb52ddccdbbe8fbf5a9ad48b5
      https://github.com/llvm/llvm-project/commit/1462bdf1b985256fb52ddccdbbe8fbf5a9ad48b5
  Author: Sanjay Patel <spatel at rotateright.com>
  Date:   2021-03-31 (Wed, 31 Mar 2021)

  Changed paths:
    M llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp
    M llvm/test/Transforms/InstCombine/abs-intrinsic.ll

  Log Message:
  -----------
  [InstCombine] fold abs(srem X, 2)

This is a missing optimization based on an example in:
https://llvm.org/PR49763

As noted there and the test here, we could add a more
general fold if that is shown useful.

https://alive2.llvm.org/ce/z/xEHdTv
https://alive2.llvm.org/ce/z/97dcY5


Compare: https://github.com/llvm/llvm-project/compare/4e52daa25404...1462bdf1b985