[all-commits] [llvm/llvm-project] 16e61e: [flang][runtime] Fix BACKSPACE over an empty record

[Peter Klausler via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 16e61eb0c4d333fd589f94ddf40a37602d3eae93
      https://github.com/llvm/llvm-project/commit/16e61eb0c4d333fd589f94ddf40a37602d3eae93
  Author: Peter Klausler <pklausler at nvidia.com>
  Date:   2023-07-07 (Fri, 07 Jul 2023)

  Changed paths:
    M flang/runtime/unit.cpp

  Log Message:
  -----------
  [flang][runtime] Fix BACKSPACE over an empty record

The implementation of BACKSPACE on a variable-length sequential formatted
file has a bug that prevents it from working on an empty record.

Differential Revision: https://reviews.llvm.org/D154750