[all-commits] [llvm/llvm-project] 6af94d: [cgp] Defer lazy domtree usage to last possible point

[Philip Reames via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 6af94d22f7b0f7f5edd84ad9ae96fd801dbf017d
      https://github.com/llvm/llvm-project/commit/6af94d22f7b0f7f5edd84ad9ae96fd801dbf017d
  Author: Philip Reames <listmail at philipreames.com>
  Date:   2021-03-04 (Thu, 04 Mar 2021)

  Changed paths:
    M llvm/lib/CodeGen/CodeGenPrepare.cpp

  Log Message:
  -----------
  [cgp] Defer lazy domtree usage to last possible point

This is a compile time optimization for d9e93e8e5. Not sure this matters or not, but why not do it just in case.

This does involve querying TLI with a potentially invalid addressing mode for the using instruction, but since we don't actually pass the using instruction to the TLI callback, that should be fine.