https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81978
anlauf at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |wrong-code
Last reconfirmed|2017-09-16 00:00:00 |2022-10-17
CC| |anlauf at gcc dot gnu.org
--- Comment #2 from anlauf at gcc dot gnu.org ---
Several observations:
The dummy argument 'names' of match_word has no specified INTENT, so gfortran
treats it as INTENT(INOUT), does a copy-in/copy-out, and it might be that the
copy-out to non-writable pp causes the crash. Adding INTENT(IN) solves (or
works around) the issue.
Making the actual argument a temporary also helps, e.g. replacing
call match_word(pp%name)
by
call match_word((pp%name))
or
call match_word([pp%name])
If one actually declares 'names' with INTENT(INOUT), an error is reported
(correctly).
As a lot of legacy code does not specify INTENT in similar cases, and NAG
and Intel do generate a temporary here, we should do this, too.
