[all-commits] [llvm/llvm-project] a0dde7: [DAG] Remove (dead) legalization for atomic LoadSD...

[Philip Reames via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: a0dde7b8d16842005d6f5247dda6f17c77a5906f
      https://github.com/llvm/llvm-project/commit/a0dde7b8d16842005d6f5247dda6f17c77a5906f
  Author: Philip Reames <preames at rivosinc.com>
  Date:   2023-12-05 (Tue, 05 Dec 2023)

  Changed paths:
    M llvm/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp

  Log Message:
  -----------
  [DAG] Remove (dead) legalization for atomic LoadSDNode and StoreSDNode

This should have been part of 943f3e52 which removed the never completed
migration code which added these.  I left them out because I thought there
was more generic SDAG code to cleanup, but I'd forgotten that SystemZ
relied on custom legalizing ATOMIC_LOAD to (atomic) LoadSDNode.  As a
result, we still need the various legality checks on combines and the
common infrastructure to suport them.