[PATCH] PR fortran/103607 - [9/10/11/12 Regression] ICE in do_subscript, at fortran/frontend-passes.c:2927

[Harald Anlauf]

Dear all,

frontend-passes.c(do_subscript) does a check on array subscripts
which failed for the testcase in the PR where the array spec was
foul: the upper bound finally resolves to a REAL instead of an
INTEGER.  (There is another related testcase by Gerhard).

I haven't figured out yet how to kill or fix the array decl in
that case.  Nevertheless it makes sense to catch situations in
do_subscript where we end up with illegal types of the bounds.
This is trivially done by the attached patch.

Regtested on x86_64-pc-linux-gnu.  OK for mainline/backports?

Thanks,
Harald

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