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From: "anlauf at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug fortran/103472] ICE in gfc_conv_ss_startstride, at
 fortran/trans-array.c:4527
Date: Sun, 12 Dec 2021 20:22:20 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D103472

anlauf at gcc dot gnu.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2021-12-12
             Status|UNCONFIRMED                 |NEW
           Priority|P3                          |P4
     Ever confirmed|0                           |1
                 CC|                            |anlauf at gcc dot gnu.org

--- Comment #2 from anlauf at gcc dot gnu.org ---
(In reply to Mikael Morin from comment #1)
> We could workaround it by replacing warnings with errors.
> Are there cases where we do want warnings, not errors?

I would consider the testcase as invalid, so an error appears ok.
But technically the lower bound of a is 1 and upper bound is 0,
so the error message is a bit misleading.

E.g. NAG gives:

Error: pr103472-z1.f90, line 2: First subscript (1) is greater than upper b=
ound
(0) for array A=