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From: "Dimitar.Peikov at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/58943] New: wrong calculation of indirect structure member arithmetic via function call
Date: Thu, 31 Oct 2013 16:00:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58943

            Bug ID: 58943
           Summary: wrong calculation of indirect structure member
                    arithmetic via function call
           Product: gcc
           Version: 4.8.1
            Status: UNCONFIRMED
          Severity: critical
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: Dimitar.Peikov at gmail dot com

Created attachment 31124
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=31124&action=edit
example for failed structure propagation

In attached file there is an example of invalid calculation where, a structure
with integer is manipulated inside a function call which takes struct as
pointer and same integer member is part of arithmetic result operation.
The issue was tested on several compilers 4.6.3, 4.7.2, 4.8.1 on different
platforms Linux and Windows with same result.