tree 2066ddffa1665b841565f48865a8031e35ddc3c3
parent 41c41fcbc036d75e6b6ea0756857099befbb3313
author Peter Klausler <pklausler@nvidia.com> 1658795235 -0700
committer Peter Klausler <pklausler@nvidia.com> 1659901976 -0700

[flang][runtime] Catch & report attempts at recursive I/O

When an I/O statement contains a function call that attempts
to perform I/O on the same unit, detect the recursive I/O
and terminate with a useful message rather than deadlocking in
the threading library.

Differential Revision: https://reviews.llvm.org/D131097