[all-commits] [llvm/llvm-project] 4ec1b8: [RISCV] Fix invalid kill on callee save

[David Callahan via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 4ec1b8eeac442a44cad329bd28d5c229c227b1f7
      https://github.com/llvm/llvm-project/commit/4ec1b8eeac442a44cad329bd28d5c229c227b1f7
  Author: David Callahan <david.callahan1 at live.com>
  Date:   2021-11-02 (Tue, 02 Nov 2021)

  Changed paths:
    M llvm/lib/Target/RISCV/RISCVFrameLowering.cpp
    A llvm/test/CodeGen/RISCV/live-sp.mir

  Log Message:
  -----------
  [RISCV] Fix invalid kill on callee save

A callee save may be live (specifically X1) on entry and so a spill
should not mark it killed.

Differential Revision: https://reviews.llvm.org/D111285