[Bug fortran/27411] crashes in sra_walk_expr and emit_move_insn

[paul dot thomas at jet dot uk]

------- Comment #2 from paul dot thomas at jet dot uk  2006-05-04 09:50 -------
(In reply to comment #1)
> Confirmed, this is a front-end issue.
> we have:
>             struct calc_signal_type D.904;
>             D.904 = (*(struct calc_signal_type[0:] *)
> outputs->data)[outputs->dim[0].stride * NON_LVALUE_EXPR <S.4>];
>             (*D.896)[(NON_LVALUE_EXPR <S.4> + D.900) * D.903 + D.897].used =
> (*used.0)[D.904 * D.902 + D.895];
> but really D.904 should be an integer and there should be a COMPONET_REF to
> "signal_number" there.
> The parse tree is ok though:
>       ASSIGN activate_gd_calcs:outputs(FULL) % used
> activate_gd_calcs:used(activate_gd_calcs:outputs(FULL) % signal_number)
> So this is a bug in the trans* functions.

I am seeing this problem of incorrect casting in several failing testcases for
the allocatable component patch that Erik and I are working on.  None of them
generate the ICE and this has made the problem very hard to pinpoint.  For
example, several of the varying string testsuite crash because trans-io is
being fed characters, when an integer is expected, or a string comparison is
producing a pointer to one of the strings, instead of a logical.  This case
helps a lot.

Thanks, Richard.

Paul


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27411