Lowering of FailImage statement generates a runtime call and the
unreachable operation. The unreachable operation cannot terminate
a structured operation like the IF operation, hence mark as
unstructured.
Note: This patch is part of upstreaming code from the fir-dev branch of
https://github.com/flang-compiler/f18-llvm-project.
Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
clang-format not found in user’s local PATH; not linting file.