[all-commits] [llvm/llvm-project] 443825: Recommit "[X86] Simplify some `pternlog` intrinsic...

[goldsteinn via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 443825c517c862920756bc2c797e5426df57ce73
      https://github.com/llvm/llvm-project/commit/443825c517c862920756bc2c797e5426df57ce73
  Author: Noah Goldstein <goldstein.w.n at gmail.com>
  Date:   2023-04-04 (Tue, 04 Apr 2023)

  Changed paths:
    M llvm/lib/Target/X86/X86InstCombineIntrinsic.cpp
    M llvm/test/CodeGen/X86/ternlog.ll
    M llvm/test/Transforms/InstCombine/X86/x86-ternlog.ll
    M llvm/unittests/Target/X86/CMakeLists.txt
    A llvm/unittests/Target/X86/TernlogTest.cpp

  Log Message:
  -----------
  Recommit "[X86] Simplify some `pternlog` intrinsics" (2nd Try)

Original location of the unittests was Transforms/InstCombine/X86
which caused an issue as non-x86 targets ended up with a dependency on
X86 which isn't right.

Moved the unit tests to Target/X86 so should be good now.

Differential Revision: https://reviews.llvm.org/D145220


  Commit: 4b2be144e170504f62362e044a3c4ad3b24da880
      https://github.com/llvm/llvm-project/commit/4b2be144e170504f62362e044a3c4ad3b24da880
  Author: Noah Goldstein <goldstein.w.n at gmail.com>
  Date:   2023-04-04 (Tue, 04 Apr 2023)

  Changed paths:
    M llvm/lib/Target/X86/X86ISelDAGToDAG.cpp
    M llvm/test/CodeGen/X86/avx512-gfni-intrinsics.ll
    M llvm/test/CodeGen/X86/var-permute-256.ll
    M llvm/test/CodeGen/X86/vector-shuffle-v1.ll
    M llvm/test/CodeGen/X86/vselect-avx.ll
    M llvm/test/CodeGen/X86/vselect-pcmp.ll

  Log Message:
  -----------
  [X86] Prefer `vpternlog` instead of `blendv` for `vselect` on masks.

This rarely comes up because most `vselect` are lowered with actually
avx512 mask instructions, but is an improvement in the rare cases.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D145221


Compare: https://github.com/llvm/llvm-project/compare/62bfb0b14ce9...4b2be144e170