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Subject: [Bug fortran/41453] use INTENT(out) for optimization
Date: Sun, 25 Sep 2022 12:48:17 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D41453

--- Comment #10 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Mikael Morin <mikael@gcc.gnu.org>:

https://gcc.gnu.org/g:51c9480f9f0a80ef112ba2aed040b0b2ad0fc2a2

commit r13-2837-g51c9480f9f0a80ef112ba2aed040b0b2ad0fc2a2
Author: Mikael Morin <mikael@gcc.gnu.org>
Date:   Mon Aug 29 13:27:02 2022 +0200

    fortran: Support clobbering of reference variables [PR41453]

    This adds support for clobbering of variables passed by reference,
    when the reference is forwarded to a subroutine as actual argument
    whose associated dummy has the INTENT(OUT) attribute.
    This was explicitly disabled by a condition added with
    r9-3032-gee7fb0588c6361b4d77337ab0f7527be64fcdde2 and removing that
    condition seems to work, as demonstrated by the new testcase.

            PR fortran/41453
            PR fortran/87395

    gcc/fortran/ChangeLog:

            * trans-expr.cc (gfc_conv_procedure_call): Remove condition
            disabling clobber generation for dummy variables.  Remove
            obsolete comment.

    gcc/testsuite/ChangeLog:

            * gfortran.dg/intent_optimize_6.f90: New test.=