[all-commits] [llvm/llvm-project] f16196: [flang] Better error recovery for bad submodules

[Peter Klausler via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: f161964e1c00604941f276fe851aafabac7af5b6
      https://github.com/llvm/llvm-project/commit/f161964e1c00604941f276fe851aafabac7af5b6
  Author: Peter Klausler <pklausler at nvidia.com>
  Date:   2022-06-29 (Wed, 29 Jun 2022)

  Changed paths:
    M flang/lib/Semantics/resolve-names.cpp

  Log Message:
  -----------
  [flang] Better error recovery for bad submodules

When a submodule appears in a source file and the compiler can't find the
named ancestor module (and submodule, if one appears), crashes may occur
later due to the absence of a scope.  For better resilience, a dummy
ancestral scope should be generated within which the submodule scope
can be created.

Differential Revision: https://reviews.llvm.org/D128760