[all-commits] [llvm/llvm-project] 808dc6: VirtRegMap: Preserve LiveDebugVariables

[Matt Arsenault via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 808dc6f8663c4c0696fc6eaf998db61a06330266
      https://github.com/llvm/llvm-project/commit/808dc6f8663c4c0696fc6eaf998db61a06330266
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2021-05-27 (Thu, 27 May 2021)

  Changed paths:
    M llvm/lib/CodeGen/VirtRegMap.cpp
    M llvm/test/CodeGen/AMDGPU/debug-value.ll

  Log Message:
  -----------
  VirtRegMap: Preserve LiveDebugVariables

This avoids recomputing it between regalloc runs when allocation is
split, and also avoids a debug info test regression.