[all-commits] [llvm/llvm-project] 9520b6: [flang] Fix a crash when cosubscript list is empty

[Pete Steinfeld via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 9520b6c8ab63061e1734deef8614eaa60f704dc9
      https://github.com/llvm/llvm-project/commit/9520b6c8ab63061e1734deef8614eaa60f704dc9
  Author: Pete Steinfeld <psteinfeld at nvidia.com>
  Date:   2020-07-08 (Wed, 08 Jul 2020)

  Changed paths:
    M flang/lib/Semantics/expression.cpp
    M flang/test/Semantics/resolve94.f90

  Log Message:
  -----------
  [flang] Fix a crash when cosubscript list is empty

Summary:
When there are errors in the evaluation of every cosubscript expression in a
coindexed object, the compiler would crash.  I fixed this by just checking to
see if there were errors in the evaluation of the cosubscripts before
constructing the `DataRef` for the coindexed object.

Reviewers: klausler, tskeith, DavidTruby

Subscribers: llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D83410