[all-commits] [llvm/llvm-project] d3a520: Reapply [MergeICmps] Don't require GEP

[Nikita Popov via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: d3a52089eb3e9d8b41dd8ca08d3d532dee78c4e8
      https://github.com/llvm/llvm-project/commit/d3a52089eb3e9d8b41dd8ca08d3d532dee78c4e8
  Author: Nikita Popov <npopov at redhat.com>
  Date:   2022-03-04 (Fri, 04 Mar 2022)

  Changed paths:
    M llvm/lib/Transforms/Scalar/MergeICmps.cpp
    M llvm/test/Transforms/MergeICmps/X86/no-gep-other-work.ll
    M llvm/test/Transforms/MergeICmps/X86/opaque-ptr.ll

  Log Message:
  -----------
  Reapply [MergeICmps] Don't require GEP

Recommit without changes over 53abe3ff66a54117308352d379837c7d3229f8d6,
which addressed the cause of the reported crash.

-----

With opaque pointers, the zero-offset load will generally not use
a GEP. Allow a direct load without GEP, which is treated the same
way as a zero-offset GEP.