[PATCH] PR fortran/87737 - ICE tree check: expected ssa_name, have addr_expr in remap_gimple_op_r, at tree-inline.c:923

Paul Richard Thomas paul.richard.thomas@gmail.com
Sat Aug 28 07:41:21 GMT 2021

Hi Harald,

It looks good to me. OK for mainline. You might even consider backporting
to 11-branch.

Best regards


On Fri, 27 Aug 2021 at 21:15, Harald Anlauf via Fortran <fortran@gcc.gnu.org>

> Dear all,
> the ICE in the original testcase does no longer occur but leads to an
> error in a later stage of compilation, and we accepted invalid code.
> (Cross-checked with other compilers, such as Intel and NAG).
> F2018 states:
>  ENTRY statement
> (3) ... If the characteristics of the result of the function named in the
> ENTRY statement are the same as the characteristics of the result of the
> function named in the FUNCTION statement, their result names identify the
> same
> entity, although their names need not be the same. Otherwise, they are
> storage
> associated and shall all be nonpointer, nonallocatable scalar variables
> that
> are default integer, default real, double precision real, default complex,
> or
> default logical.
> We thus better reject the testcase example during resolution with an
> appropriate error message.  (I hope the chosen one is fine enough.)
> Regtested on x86_64-pc-linux-gnu.  OK for mainline?
> Thanks,
> Harald
> Fortran - reject function entries with mismatched characteristics
> gcc/fortran/ChangeLog:
>         PR fortran/87737
>         * resolve.c (resolve_entries): For functions of type CHARACTER
>         tighten the checks for matching characteristics.
> gcc/testsuite/ChangeLog:
>         PR fortran/87737
>         * gfortran.dg/entry_24.f90: New test.

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