[Bug target/34304] New: OpenJDK7 b23 is miscompiled with -O3 on amd64

["doko at ubuntu dot com" <gcc-bugzilla at gcc dot gnu dot org>]

This report is incomplete

When building with GCC 4.2 from the 4.2 branch, all the demos in demos/jfc and
the gcjwebplugin crash. Lowering the optimization for the jdk to -O2 results in
working demos and plugin. The build with GCC 4.1 does fail for me on amd64, GCC
4.3 from trunk works fine with -O2 and -O3.

thread on OpenJDK:
http://mail.openjdk.java.net/pipermail/distro-pkg-dev/2007-November/000685.html


-- 
           Summary: OpenJDK7 b23 is miscompiled with -O3 on amd64
           Product: gcc
           Version: 4.2.3
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: doko at ubuntu dot com
GCC target triplet: x86_64-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34304