[Bug c/91254] New: Wrong generate code with a series of array access

[alebencz at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91254

            Bug ID: 91254
           Summary: Wrong generate code with a series of array access
           Product: gcc
           Version: 8.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: alebencz at gmail dot com
  Target Milestone: ---

Created attachment 46625
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=46625&action=edit
Source that generates the error

The attached program serves to calculate the PI number, after a series of
attempts I found it to be a mistake in GCC, because I tested with other
compilers and the system ran correctly, calculating the PI number, tested with
DMC, VC ++, TCC and OrangeC, I did the same test with GCC on PPC64LE with GCC
version 8.3.0 and on s390x.

The system enters on the first loop, and, never go out.