[Bug fortran/29490] internal compiler error: in fold_binary, at fold-const.c:8239

[pault at gcc dot gnu dot org]

------- Comment #3 from pault at gcc dot gnu dot org  2006-10-18 10:08 -------
(In reply to comment #2)
> Thank you, Richard - thanks to your splendid analysis, I was able to go
> straight to the source of the problem:
> trans-types.c(gfc_get_nodesc_array_type):1038 sets GFC_TYPE_ARRAY_LBOUND to
> NULL_TREE if the arrayspec lower is not constant.  It then feeds through to the
> interfacery that cannot cope with this and the ICE ensues.  There is no reason
> why GFC_TYPE_ARRAY_LBOUND cannot be set; being fortran, gfc_index_one_node is
> an OK choice, although zero does OK too.  This is regtesting as I write.  If
> all is well, I will submit before going to bed.

Hah! Famous last words...  There is one g77 testcase that does not like this
approach: g77/19981119-0.f

Jumping past the offending build2 works fine; in fact the interface is not used
at all, so  I am wondering if there is not a cleaner way to do this.  I will
find a fix that I understand today.

Paul

Setting 


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29490