[PATCH] Fix s390 as

[Martin Schwidefsky]

>This should fix the bug shown by Jakub's s390 testcase in a way that
>preserves old behaviour regarding subtraction expressions.  Would one
>of you mind committing the testcase?

I'll take care of the testcase.

blue skies,
   Martin

Linux/390 Design & Development, IBM Deutschland Entwicklung GmbH
Schönaicherstr. 220, D-71032 Böblingen, Telefon: 49 - (0)7031 - 16-2247
E-Mail: schwidefsky@de.ibm.com