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From: "cstankevitz at toyon dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/46806] New: -O3 implies 0 <= 8 <= 7
Date: Sun, 05 Dec 2010 01:55:00 -0000	[thread overview]
Message-ID: <bug-46806-4@http.gcc.gnu.org/bugzilla/> (raw)

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46806

           Summary: -O3 implies 0 <= 8 <= 7
           Product: gcc
           Version: 4.5.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: cstankevitz@toyon.com
              Host: Linux seymour.toyon.corp 2.6.35.6-48.fc14.x86_64 #1
                    SMP Fri Oct 22 15:36:08 UTC 2010 x86_64 x86_64 x86_64
                    GNU/Linux
             Build: g++ (GCC) 4.5.1 20100924 (Red Hat 4.5.1-4)


Created attachment 22636
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=22636
sample program

Linux seymour.toyon.corp 2.6.35.6-48.fc14.x86_64 #1 SMP Fri Oct 22 15:36:08 UTC
2010 x86_64 x86_64 x86_64 GNU/Linux

g++ (GCC) 4.5.1 20100924 (Red Hat 4.5.1-4)

Compile the attached source with "g++ test.cpp -O3" and the executable will
report 0<=8<=7.

To make the strange result go away:

- comment out the do-nothing line gValue = EdgeType (or make a number of other
minor changes)

- compile with -O1


             reply	other threads:[~2010-12-05  1:55 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-12-05  1:55 cstankevitz at toyon dot com [this message]
2010-12-05  2:26 ` [Bug c++/46806] " pinskia at gcc dot gnu.org
2010-12-05  2:48 ` cstankevitz at toyon dot com
2010-12-05  2:53 ` cstankevitz at toyon dot com
2010-12-05  4:16 ` redi at gcc dot gnu.org
2010-12-05  4:19 ` redi at gcc dot gnu.org
2010-12-05 11:32 ` rguenth at gcc dot gnu.org
2010-12-05 18:12 ` cstankevitz at toyon dot com
2010-12-05 19:27 ` redi at gcc dot gnu.org
2010-12-05 22:13 ` rguenth at gcc dot gnu.org
2010-12-05 23:47 ` cstankevitz at toyon dot com
2010-12-05 23:59 ` paolo.carlini at oracle dot com
2010-12-06 12:53 ` rguenth at gcc dot gnu.org
2010-12-06 13:07 ` rguenth at gcc dot gnu.org
2010-12-06 13:08 ` [Bug tree-optimization/46806] " rguenth at gcc dot gnu.org

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