[all-commits] [llvm/llvm-project] 943f3e: [X86] Remove x86-experimental-unordered-atomic-ise...

[Philip Reames via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 943f3e52a0532d1d2b5c743635e1aed15033154b
      https://github.com/llvm/llvm-project/commit/943f3e52a0532d1d2b5c743635e1aed15033154b
  Author: Philip Reames <preames at rivosinc.com>
  Date:   2023-12-04 (Mon, 04 Dec 2023)

  Changed paths:
    M llvm/include/llvm/CodeGen/TargetLowering.h
    M llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
    M llvm/lib/Target/X86/X86ISelLowering.cpp
    M llvm/lib/Target/X86/X86ISelLowering.h
    M llvm/test/CodeGen/X86/atomic-unordered.ll

  Log Message:
  -----------
  [X86] Remove x86-experimental-unordered-atomic-isel option and associated code

This option enables an experimental lowering for unordered atomics I worked
on a few years back.  It never reached production quality, and hasn't been
worked on in years.  So let's rip it out.

This wasn't a crazy idea, but I hit some stumbling block which prevented me
from pushing it across the finish line.  From the look of 027aa27, that
change description is probably a good summary.  I don't remember the
details any longer.