[all-commits] [llvm/llvm-project] 655f0f: Reapply "[SystemZ] Bugfix in expansion of memmem o...

[Jonas Paulsson via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 655f0fc4b96d02b1baa075a0bbd8dda936070796
      https://github.com/llvm/llvm-project/commit/655f0fc4b96d02b1baa075a0bbd8dda936070796
  Author: Jonas Paulsson <paulsson at linux.vnet.ibm.com>
  Date:   2023-05-10 (Wed, 10 May 2023)

  Changed paths:
    M llvm/lib/Target/SystemZ/SystemZISelLowering.cpp
    A llvm/test/CodeGen/SystemZ/memmem-exrl-cc.mir

  Log Message:
  -----------
  Reapply "[SystemZ] Bugfix in expansion of memmem operations."

The new test case showed that the NoPHIs flag needs to be cleared.

Original commit message:

[SystemZ] Bugfix in expansion of memmem operations.

Since NC, OC, and XC clobber CC, the EXRL_Pseudo targeting these must also be
marked to do so.

Original patch by uweigand.

Reviewed by: uweigand

Differential Revision: https://reviews.llvm.org/D150251

Fixes: https://github.com/llvm/llvm-project/issues/62572