[all-commits] [llvm/llvm-project] f7deb6: [X86] Disable masked UNPCKLPD/UNPCKHPD -> SHUFPS t...

[Phoebe Wang via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: f7deb69f22b93d7411d08db14b50aae5caf40fcb
      https://github.com/llvm/llvm-project/commit/f7deb69f22b93d7411d08db14b50aae5caf40fcb
  Author: Phoebe Wang <phoebe.wang at intel.com>
  Date:   2023-04-04 (Tue, 04 Apr 2023)

  Changed paths:
    M llvm/lib/Target/X86/X86FixupInstTuning.cpp
    M llvm/test/CodeGen/X86/tuning-shuffle-unpckpd-avx512.ll

  Log Message:
  -----------
  [X86] Disable masked UNPCKLPD/UNPCKHPD -> SHUFPS transformation

UNPCKLPD/UNPCKHPD is a 64-bit element operation. The masked version
doesn't match SHUFPS in lanes.
This reverts part of D144763.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D147507