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From: "m.hekkelman at cmbi dot ru.nl" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/51731] New: code generation bug in negative indices in arrays on 64-bit targets
Date: Mon, 02 Jan 2012 12:26:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51731

             Bug #: 51731
           Summary: code generation bug in negative indices in arrays on
                    64-bit targets
    Classification: Unclassified
           Product: gcc
           Version: 4.6.1
            Status: UNCONFIRMED
          Severity: major
          Priority: P3
         Component: c++
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: m.hekkelman@cmbi.ru.nl


Created attachment 26217
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=26217
source file containing a fully self contained bug description

When compiling the attached code with -O3 the generated code is incorrect as
can be seen by the output of the program. The problem was introduced in gcc
4.5, earlier versions did not have this problem.