[all-commits] [llvm/llvm-project] e1bb05: [MachineBasicBlock] Fix use after free in SplitCri...

[Carl Ritson via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: e1bb0598b2c0ecb098c7032716e3ae10f10a4da7
      https://github.com/llvm/llvm-project/commit/e1bb0598b2c0ecb098c7032716e3ae10f10a4da7
  Author: Carl Ritson <carl.ritson at amd.com>
  Date:   2023-10-15 (Sun, 15 Oct 2023)

  Changed paths:
    M llvm/lib/CodeGen/MachineBasicBlock.cpp

  Log Message:
  -----------
  [MachineBasicBlock] Fix use after free in SplitCriticalEdge (#68786)

Remove use after free when attempting to update SlotIndexes in
MachineBasicBlock::SplitCriticalEdge.

Use MachineFunction delegate mechanism to capture target specific
manipulations of branch instructions and update SlotIndexes.