[all-commits] [llvm/llvm-project] c09679: [CodeGen] Prevent nullptr deref in genAlternativeC...

[Felipe de Azevedo Piovezan via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: c0967995d254fd2dd24ba74afa46df5f559f11ba
      https://github.com/llvm/llvm-project/commit/c0967995d254fd2dd24ba74afa46df5f559f11ba
  Author: Felipe de Azevedo Piovezan <fpiovezan at apple.com>
  Date:   2023-03-08 (Wed, 08 Mar 2023)

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

  Log Message:
  -----------
  [CodeGen] Prevent nullptr deref in genAlternativeCodeSequence

A pointer dereference was added (D141302) above an assert that checks
whether the pointer is null. This commit moves the assert above the
dereference and transforms it into an llvm_unreachable to better express
the intent that certain switch cases should never be reached.

Differential Revision: https://reviews.llvm.org/D145599