[all-commits] [llvm/llvm-project] 514686: [RISCV] Add correct Uses, Defs, isReturn to Zcmp (...

[Visoiu Mistrih Francis via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 514686acfda66401869f9599954d731619c12c99
      https://github.com/llvm/llvm-project/commit/514686acfda66401869f9599954d731619c12c99
  Author: Visoiu Mistrih Francis <890283+francisvm at users.noreply.github.com>
  Date:   2024-02-07 (Wed, 07 Feb 2024)

  Changed paths:
    M llvm/lib/Target/RISCV/RISCVInstrInfoZc.td
    M llvm/lib/Target/RISCV/RISCVPushPopOptimizer.cpp
    A llvm/test/CodeGen/RISCV/zcmp-cm-popretz.mir
    M llvm/test/CodeGen/RISCV/zcmp-cm-push-pop.mir

  Log Message:
  -----------
  [RISCV] Add correct Uses, Defs, isReturn to Zcmp (#81039)

* they all do stack adjustments, so they all use and def x2.
* popret and popretz also return
* popretz also defines x10

This adds that to the TD file and updates the PushPopOptimizer to
preserve the extra implicit operands added during frame lowering when
converting to popret(z).