[all-commits] [llvm/llvm-project] 303e64: [X86][NFC] Remove dead code for "_REV" instructions

[Shengchen Kan via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 303e64826b79af0c0e67ba06d5d8e1385adc32b5
      https://github.com/llvm/llvm-project/commit/303e64826b79af0c0e67ba06d5d8e1385adc32b5
  Author: Shengchen Kan <shengchen.kan at intel.com>
  Date:   2024-01-24 (Wed, 24 Jan 2024)

  Changed paths:
    M llvm/lib/Target/X86/X86FlagsCopyLowering.cpp

  Log Message:
  -----------
  [X86][NFC] Remove dead code for "_REV" instructions

ADC/SBB with reverse encoding is never emitted by compiler before
encoding optimization, which is called after flag-copy lowering.

This is a partial reland for 8bbf100799a97f8342bf1a8409c6fb48f03e837f