[all-commits] [llvm/llvm-project] 084191: [TableGen] Do not construct string from nullptr

[Yuriy Chernyshov via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 0841916e87a39e3c223c986e8da31e4a9a1432e3
      https://github.com/llvm/llvm-project/commit/0841916e87a39e3c223c986e8da31e4a9a1432e3
  Author: Yuriy Chernyshov <georgthegreat at gmail.com>
  Date:   2020-09-10 (Thu, 10 Sep 2020)

  Changed paths:
    M llvm/utils/TableGen/DFAEmitter.cpp

  Log Message:
  -----------
  [TableGen] Do not construct string from nullptr

While I am trying to forbid such usages systematically in
https://reviews.llvm.org/D79427 / P2166R0 to C++ standard,
this PR fixes this (definitelly incorrect) usage in llvm.

Differential Revision: https://reviews.llvm.org/D87185