tree 1a708f5034329cd559b372b1d941d90088b85ffe
parent 8fb02fae9957e828e91b4844bc7514fb319ec5d9
author Peter Klausler <pklausler@nvidia.com> 1758125757 -0700
committer GitHub <noreply@github.com> 1758125757 -0700
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[flang] Allow for equivalent types in non-TBP defined I/O (#158755)

Non-extensible derived type -- those with SEQUENCE or BIND(C) -- are
allowed as monomorphic "dtv" dummy arguments to defined I/O subroutines.
Fortran's type rules admit structural equivalence for these types, and
it's possible that I/O might be attempted in a scope using a
non-extensible type that's equivalent to a non-type-bound generic
interface's specific procedure's "dtv" dummy argument's type, but not
defined in the same place.

Fixes https://github.com/llvm/llvm-project/issues/158673.

This is an IBM Fortran test case that doesn't need to be duplicated in
LLVM.