[all-commits] [llvm/llvm-project] 16fecd: Revert "[AArch64] Add `foldCSELOfCSEl` DAG combine"

[Vitaly Buka via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 16fecdfa700c242cfbbb24258729413c73f4db6f
      https://github.com/llvm/llvm-project/commit/16fecdfa700c242cfbbb24258729413c73f4db6f
  Author: Vitaly Buka <vitalybuka at google.com>
  Date:   2022-08-16 (Tue, 16 Aug 2022)

  Changed paths:
    M llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
    M llvm/lib/Target/AArch64/Utils/AArch64BaseInfo.h
    M llvm/test/CodeGen/AArch64/fpclamptosat.ll
    M llvm/test/CodeGen/AArch64/fpclamptosat_vec.ll
    M llvm/test/CodeGen/AArch64/fptosi-sat-scalar.ll
    M llvm/test/CodeGen/AArch64/fptosi-sat-vector.ll
    M llvm/test/CodeGen/AArch64/i128-math.ll
    M llvm/test/CodeGen/AArch64/i256-math.ll
    M llvm/test/CodeGen/AArch64/sadd_sat_vec.ll
    M llvm/test/CodeGen/AArch64/ssub_sat_vec.ll
    M llvm/test/CodeGen/AArch64/uadd_sat_vec.ll
    M llvm/test/CodeGen/AArch64/usub_sat_vec.ll

  Log Message:
  -----------
  Revert "[AArch64] Add `foldCSELOfCSEl` DAG combine"

Breaks ubsan on buildbot, details in D125504

This reverts commit 6f9423ef06926a70af84b77cb290c91214cf791a.