<div dir="ltr">Put it all together, the following error messages should work for everybody. I'll create a patch to make this change and send it for review. Thank you guys for the inputs!<div><br></div><div><br></div><div><div>Undefined symbol error:</div><div><br></div><div><div><div><font face="monospace, monospace">bin/ld.lld: <font color="#ff0000">error</font>: undefined symbol: lld::elf::EhFrameSection<llvm:<wbr>:object::ELFType<(llvm::<wbr>support::endianness)0, true></font></div><div><font face="monospace, monospace"><b>>>> defined at</b> Writer.cpp:207 (/ssd/llvm-<wbr>project/lld/ELF/Writer.cpp:<wbr>207)</font></div><div><font face="monospace, monospace"><b>>>></b>            Writer.cpp.o in archive lib/liblldELF.a</font></div></div><div><br></div></div><div><br></div><div>Duplicate symbol error:<br></div><div><br></div><div><font face="monospace, monospace">bin/ld.lld: <font color="#ff0000">error</font>: duplicate symbol: lld::elf::MipsGotSection::<wbr>addEntry(lld::elf::SymbolBody&<wbr>, long, lld::elf::RelExpr)</font></div><div><font face="monospace, monospace"><b>>>> defined at</b> Writer.cpp:38 (/home/buildslave/buildslave/<wbr>clang-cmake-aarch64-39vma/<wbr>llvm/tools/lld/ELF/Writer.cpp:<wbr>38)</font></div><div><font face="monospace, monospace"><b>>>></b>            Writer.cpp.o in archive lib/liblldELF.a</font></div><div><font face="monospace, monospace"><b>>>> defined at</b> SyntheticSections.cpp:673 (/home/buildslave/buildslave/<wbr>clang-cmake-aarch64-39vma/<wbr>llvm/tools/lld/ELF/<wbr>SyntheticSections.cpp:673)</font></div><div><font face="monospace, monospace"><b>>>></b>            SyntheticSections.cpp.o in archive lib/liblldELF.a</font></div></div><div><br></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Mar 28, 2017 at 5:58 PM, Michael Spencer via llvm-dev <span dir="ltr"><<a href="mailto:llvm-dev@lists.llvm.org" target="_blank">llvm-dev@lists.llvm.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div class="gmail_extra"><span class="m_2383354865062108342gmail-"><div><div class="m_2383354865062108342gmail-m_748840340857691451gmail_signature">On Sat, Mar 25, 2017 at 6:56 AM, Hal Finkel via llvm-dev <span dir="ltr"><<a href="mailto:llvm-dev@lists.llvm.org" target="_blank">llvm-dev@lists.llvm.org</a>></span> wrote:<br></div></div></span><div class="gmail_quote"><span class="m_2383354865062108342gmail-"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
  
    
  
  <div bgcolor="#FFFFFF"><span class="m_2383354865062108342gmail-m_748840340857691451gmail-">
    <p><br>
    </p>
    <div class="m_2383354865062108342gmail-m_748840340857691451gmail-m_2623436989525052654moz-cite-prefix">On 03/24/2017 11:42 PM, Sean Silva via
      llvm-dev wrote:<br>
    </div>
    <blockquote type="cite">
      
      <div dir="auto">
        <div><br>
          <div class="gmail_extra"><br>
            <div class="gmail_quote">On Mar 24, 2017 5:22 PM, "Reid
              Kleckner" <<a href="mailto:rnk@google.com" target="_blank">rnk@google.com</a>>
              wrote:<br type="attribution">
              <blockquote class="m_2383354865062108342gmail-m_748840340857691451gmail-m_2623436989525052654quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
                <div dir="ltr">I figured you might consider moving the
                  basenames of the filename earlier in the diagnostic,
                  something like:
                  <div><br>
                    <div>
                      <div class="m_2383354865062108342gmail-m_748840340857691451gmail-m_2623436989525052654quoted-text"><span class="m_2383354865062108342gmail-m_748840340857691451gmail-m_2623436989525052654m_-7391039294458279378gmail-im" style="font-family:monospace,monospace;font-size:12.8px">bin/ld.lld: <b style="color:rgb(255,0,0)">error:</b> duplicate
                          symbol: lld::elf::MipsGotSection::addE<wbr>ntry(lld::elf::SymbolBody&,
                          long, lld::elf::RelExpr)</span></div>
                      <div style="font-family:monospace,monospace;font-size:12.8px"><b>>>>
                          defined at</b> Writer.cpp:38 in <span style="font-size:12.8px">/home/buildslave/buildslave<wbr>/</span><span style="font-size:12.8px">clang-cmake-aarch64-39vma/</span><span style="font-size:12.8px">llv<wbr>m/tools/lld/ELF/</span></div>
                      <div style="font-family:monospace,monospace;font-size:12.8px"><b>>>></b> 
                                  <span style="font-size:12.8px">Writer.cpp.o
                          in archive </span><span style="font-size:12.8px">lib/liblldELF.a</span></div>
                      <div style="font-family:monospace,monospace;font-size:12.8px"><b>>>>
                          defined at</b> SyntheticSections.cpp:673 in <span style="font-size:12.8px">/home/buildslave/buildslave<wbr>/</span><span style="font-size:12.8px">clang-cmake-aarch64-39vma/</span><span style="font-size:12.8px">llv<wbr>m/tools/lld/ELF/</span></div>
                      <div style="font-family:monospace,monospace;font-size:12.8px"><b>>>></b> 
                                  <span style="font-size:12.8px">SyntheticSections.cpp.o
                          in archive </span><span style="font-size:12.8px">lib/liblldELF.a</span></div>
                    </div>
                  </div>
                </div>
              </blockquote>
            </div>
          </div>
        </div>
      </div>
    </blockquote>
    <br></span>
    Please don't do this (split the base name from the path). Tools that
    match file names, grep, etc. won't be able to locate the files
    easily. I've worked with projects that, especially when all library
    dependencies are included, have lots of files with generic names
    (e.g. Writer.cpp). This is convenient for relatively self-contained
    projects where you can recognize the file names. We work on one such
    project. This is not the general case.<br>
    <br>
    If you'd like to make the base name easier to visually
    differentiate, I recommend just repeating it:<br>
    <br>
    <div><span class="m_2383354865062108342gmail-m_748840340857691451gmail-"><span class="m_2383354865062108342gmail-m_748840340857691451gmail-m_2623436989525052654gmail-im" style="font-family:monospace,monospace;font-size:12.8px">bin/ld.lld: <b style="color:rgb(255,0,0)">error:</b> duplicate symbol:
        lld::elf::MipsGotSection::addE<wbr>ntry(lld::elf::SymbolBody&,
        long, lld::elf::RelExpr)</span>
      </span><div style="font-family:monospace,monospace;font-size:12.8px"><b>>>>
          defined at</b> Writer.cpp:38 (<span style="font-size:12.8px">/home/buildslave/buildslave/</span><span style="font-size:12.8px">c<wbr>lang-cmake-aarch64-39vma/</span><span style="font-size:12.8px">llvm/<wbr>tools/lld/ELF/Writer.cpp:38)</span></div>
      <div style="font-family:monospace,monospace;font-size:12.8px"><b>>>></b> 
                  <span style="font-size:12.8px">Writer.cpp.o in
          archive </span><span style="font-size:12.8px">lib/liblldELF.a</span></div>
      <div style="font-family:monospace,monospace;font-size:12.8px"><b>>>>
          defined at</b> SyntheticSections.cpp:673 (<span style="font-size:12.8px">/home/buildslave/buildslave/</span><span style="font-size:12.8px">c<wbr>lang-cmake-aarch64-39vma/</span><span style="font-size:12.8px">llvm/<wbr>tools/lld/ELF/</span>SyntheticSection<wbr>s.cpp:673)</div>
      <div style="font-family:monospace,monospace;font-size:12.8px"><b>>>></b> 
                  <span style="font-size:12.8px">SyntheticSections.cpp.o
          in archive </span><span style="font-size:12.8px">lib/liblldELF.a</span></div>
    </div>
    <br>
    I'd be happy with that.<br>
    <br>
    Thanks again,<br>
    Hal<div><div class="m_2383354865062108342gmail-m_748840340857691451gmail-h5"><br></div></div></div></blockquote><div><br></div></span><div>+1</div><div><br></div><div>- Michael Spencer<br></div><div><div class="m_2383354865062108342gmail-h5"><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div bgcolor="#FFFFFF"><div><div class="m_2383354865062108342gmail-m_748840340857691451gmail-h5">
    <br>
    <blockquote type="cite">
      <div dir="auto">
        <div>
          <div class="gmail_extra">
            <div class="gmail_quote">
              <blockquote class="m_2383354865062108342gmail-m_748840340857691451gmail-m_2623436989525052654quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
                <div dir="ltr">
                  <div>
                    <div><br>
                    </div>
                  </div>
                  <div>Oftentimes filenames are unique enough that it
                    tells you where to go immediately. Maybe it's a bad
                    idea for the source location info, though. You want
                    that to be copy-pastable or clickable in an IDE.</div>
                </div>
              </blockquote>
            </div>
          </div>
        </div>
        <div dir="auto"><br>
        </div>
        <div dir="auto">I really like this.</div>
        <div dir="auto"><br>
        </div>
        <div dir="auto">I'm on mobile right now which is a worst case,
          but this is pretty readable even there. I've attached a
          screenshot. One nit is that we want it to be clear that
          Writer.cpp.o is in an archive before reading "Writer.cpp.o".
          Maybe something like "archive member Writer.cpp.o in ...".</div>
        <div dir="auto"><br>
        </div>
        <div dir="auto">I <span style="font-family:sans-serif">also
            think we might want some bold text for the input file lines
            to clarify better what they are. Maybe ">>> <b>from</b>
            <b>input</b> <b>file</b>: archive member ..." instead of
            just a blank ">>> archive member ..."</span></div>
        <div dir="auto"><span style="font-family:sans-serif"><br>
          </span></div>
        <div dir="auto">-- Sean Silva</div>
        <div dir="auto">
          <div class="gmail_extra">
            <div class="gmail_quote">
              <blockquote class="m_2383354865062108342gmail-m_748840340857691451gmail-m_2623436989525052654quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
                <div class="m_2383354865062108342gmail-m_748840340857691451gmail-m_2623436989525052654elided-text">
                  <div class="gmail_extra"><br>
                    <div class="gmail_quote">On Fri, Mar 24, 2017 at
                      4:07 PM, Rui Ueyama via llvm-dev <span dir="ltr"><<a href="mailto:llvm-dev@lists.llvm.org" target="_blank">llvm-dev@lists.llvm.org</a>></span>
                      wrote:<br>
                      <blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
                        <div dir="ltr">
                          <div class="gmail_extra">
                            <div class="gmail_quote"><span>On Fri, Mar
                                24, 2017 at 2:04 PM, Sean Silva <span dir="ltr"><<a href="mailto:chisophugis@gmail.com" target="_blank">chisophugis@gmail.com</a>></span>
                                wrote:<br>
                                <blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
                                  <div dir="auto">
                                    <div>I lile the idea of having it
                                      more structured and I think your
                                      suggested format is the right
                                      direction.</div>
                                    <div dir="auto"><br>
                                    </div>
                                    <div dir="auto">I think one
                                      principle should be that we assume
                                      that file names and symbol names
                                      are "really long" (possibly
                                      wrapped by the terminal etc.).</div>
                                  </div>
                                </blockquote>
                                <div><br>
                                </div>
                              </span>
                              <div>Right. That's what we should expect.</div>
                              <div><br>
                              </div>
                              <div>I believe the current error message
                                format for the existing linkers were set
                                more than 30 years ago when path names
                                and symbol names were much shorter than
                                they are today. If they are short, error
                                messages become something like
                                "src/libfoo/bar.o: undefined symbol:
                                strbar", which is quite easy to read.
                                That is unfortunately no longer the case
                                because we are creating significantly
                                larger programs than a few decades ago
                                and C++ name mangling makes symbol names
                                significantly longer than before.</div>
                              <span>
                                <div><br>
                                </div>
                                <blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
                                  <div dir="auto">
                                    <div dir="auto">So I would modify
                                      your suggested format to use the
                                      "note" color for the strings like
                                      "Object 1" so that even if those
                                      lines are wrapped by the terminal
                                      then they can still be easily
                                      visually parsed. We may also want
                                      to do something like ">>>
                                      Object 1:" so that places without
                                      color (like google's internal web
                                      ui for build logs, or if users are
                                      piping the build system's output
                                      into `less` or `tee`) are still a
                                      bit easier to parse in the
                                      presence of wrapped lines.</div>
                                  </div>
                                </blockquote>
                                <div><br>
                                </div>
                              </span>
                              <div>Makes sense. I tried a few different
                                formats based on suggestions from Mehdi,
                                Hans and you, and come up with this one.
                                What do you think?</div>
                              <div><br>
                              </div>
                            </div>
                          </div>
                          <blockquote style="margin:0px 0px 0px 40px;border:none;padding:0px">
                            <div class="gmail_extra">
                              <div class="gmail_quote"><font face="monospace, monospace">
                                  <div>bin/ld.lld: <font color="#ff0000"><b>error:</b></font>
                                    undefined symbol:
                                    lld::elf::EhFrameSection<llvm:<wbr>:object::ELFType<(llvm::suppor<wbr>t::endianness)0,
                                    true>
                                    >::addSection(lld::elf::InputS<wbr>ectionBase*)</div>
                                  <div><b>>>> referenced by</b>
                                    /home/buildslave/buildslave/cl<wbr>ang-cmake-aarch64-39vma/llvm/t<wbr>ools/lld/ELF/Writer.cpp:207</div>
                                  <div><b>>>></b>              
                                    lib/liblldELF.a(Writer.cpp.o)</div>
                                  <span>
                                    <div><br>
                                    </div>
                                    <div><br>
                                    </div>
                                    <div>bin/ld.lld: <b style="color:rgb(255,0,0)">error:</b> duplicate
                                      symbol:
                                      lld::elf::MipsGotSection::addE<wbr>ntry(lld::elf::SymbolBody&,
                                      long, lld::elf::RelExpr)</div>
                                  </span>
                                  <div><b>>>> defined at</b>
                                    /home/buildslave/buildslave/cl<wbr>ang-cmake-aarch64-39vma/llvm/t<wbr>ools/lld/ELF/Writer.cpp:38</div>
                                  <div><b>>>></b>          
                                     lib/liblldELF.a(Writer.cpp.o)</div>
                                  <div><b>>>> defined at</b>
                                    /home/buildslave/buildslave/cl<wbr>ang-cmake-aarch64-39vma/llvm/t<wbr>ools/lld/ELF/SyntheticSections<wbr>.cpp:673</div>
                                  <div><b>>>></b>          
                                     lib/liblldELF.a(SyntheticSect<wbr>ions.cpp.o)</div>
                                </font></div>
                            </div>
                          </blockquote>
                          <div class="gmail_extra">
                            <div class="gmail_quote">
                              <div><br>
                              </div>
                              <div>This format prints out source file
                                names and object file names in different
                                lines. I found that that is easier to
                                read than print them in the same line,
                                as error messages with some amount of
                                whitespace are easier to find in dense
                                build system outputs.</div>
                              <div>
                                <div class="m_2383354865062108342gmail-m_748840340857691451gmail-m_2623436989525052654m_-7391039294458279378h5">
                                  <div><br>
                                  </div>
                                  <blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
                                    <div dir="auto">
                                      <div dir="auto">This principle
                                        also suggests (and your
                                        suggested format does this) that
                                        to avoid having to parse past a
                                        symbol/file name to get to other
                                        information, there should be at
                                        most one symbol/file name on a
                                        given line and there should
                                        never be anything after it on
                                        the line. The ld64 format
                                        violates this, for example.</div>
                                      <div dir="auto"><br>
                                      </div>
                                      <div dir="auto">-- Sean Silva<br>
                                        <div class="gmail_extra" dir="auto"><br>
                                          <div class="gmail_quote">
                                            <div>
                                              <div class="m_2383354865062108342gmail-m_748840340857691451gmail-m_2623436989525052654m_-7391039294458279378m_-7137631181086882753gmail-m_-2039451436578983823gmail-h5">On
                                                Mar 23, 2017 4:18 PM,
                                                "Rui Ueyama via
                                                llvm-dev" <<a href="mailto:llvm-dev@lists.llvm.org" target="_blank">llvm-dev@lists.llvm.org</a>>
                                                wrote:<br type="attribution">
                                              </div>
                                            </div>
                                            <blockquote class="m_2383354865062108342gmail-m_748840340857691451gmail-m_2623436989525052654m_-7391039294458279378m_-7137631181086882753gmail-m_-2039451436578983823gmail-m_-3086134180091544953m_-5073081004223806894quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
                                              <div>
                                                <div class="m_2383354865062108342gmail-m_748840340857691451gmail-m_2623436989525052654m_-7391039294458279378m_-7137631181086882753gmail-m_-2039451436578983823gmail-h5">
                                                  <div dir="ltr">
                                                    <div>Folks,</div>
                                                    <div><br>
                                                    </div>
                                                    <div>I'd like
                                                      propose a new
                                                      error message
                                                      format for LLD so
                                                      that error message
                                                      for undefined or
                                                      duplicated symbols
                                                      are more
                                                      informative and
                                                      easy to read.</div>
                                                    <div><br>
                                                    </div>
                                                    <div>Below are
                                                      examples of the
                                                      current error
                                                      messages (note
                                                      that characters in
                                                      red are actually
                                                      red on terminal):</div>
                                                    <div>
                                                      <div><br>
                                                      </div>
                                                    </div>
                                                    <blockquote style="margin:0px 0px 0px 40px;border:none;padding:0px">
                                                      <div>
                                                        <div><b>Undefined
                                                          symbols</b></div>
                                                      </div>
                                                      <div>
                                                        <div>/ssd/clang/bin/ld.lld: <font color="#ff0000">error</font>: /ssd/llvm-project/lld/ELF/Writ<wbr>er.cpp:207:
                                                          undefined
                                                          symbol
                                                          'lld::elf::EhFrameSection<llvm<wbr>::object::ELFType<(llvm::suppo<wbr>rt::endianness)0,
                                                          true>
                                                          >::addSection(lld::elf::InputS<wbr>ectionBase*)'</div>
                                                      </div>
                                                      <div>
                                                        <div><br>
                                                        </div>
                                                      </div>
                                                      <div>
                                                        <div><b>Conflicting
                                                          symbols</b></div>
                                                      </div>
                                                      <div>
                                                        <div>/ssd/clang/bin/ld.lld: <span style="color:rgb(255,0,0)">error</span>: /ssd/llvm-project/lld/ELF/Writ<wbr>er.cpp:38:
                                                          duplicate
                                                          symbol
                                                          'lld::elf::MipsGotSection::add<wbr>Entry(lld::elf::SymbolBody&,
                                                          long,
                                                          lld::elf::RelExpr)'</div>
                                                      </div>
                                                      <div>
                                                        <div>/ssd/clang/bin/ld.lld:
                                                          error:
                                                          /ssd/llvm-project/lld/ELF/Synt<wbr>heticSections.cpp:673:
                                                          previous
                                                          definition was
                                                          here</div>
                                                      </div>
                                                    </blockquote>
                                                    <div><br>
                                                    </div>
                                                    <div>
                                                      <div>For each
                                                        error, we want
                                                        to print out
                                                        information
                                                        about 1) symbol
                                                        name, 2) source
                                                        file name(s) and
                                                        source
                                                        location(s) if
                                                        available and 3)
                                                        source object
                                                        file name(s) and
                                                        archive file
                                                        name(s) if
                                                        available.
                                                        Currently, these
                                                        messages lack
                                                        object file
                                                        names, and I
                                                        think the above
                                                        error messages
                                                        are a bit hard
                                                        to grasp because
                                                        too much
                                                        information is
                                                        packed into each
                                                        line.</div>
                                                      <div><br>
                                                      </div>
                                                    </div>
                                                    <div>I'm thinking of
                                                      changing the
                                                      format to
                                                      something like the
                                                      following:</div>
                                                    <div><br>
                                                    </div>
                                                    <blockquote style="margin:0px 0px 0px 40px;border:none;padding:0px">
                                                      <div>
                                                        <div><b>Undefined
                                                          symbols</b></div>
                                                      </div>
                                                      <div>
                                                        <div>/ssd/clang/bin/ld.lld: <span style="color:rgb(255,0,0)">error</span>: undefined symbol:
                                                          lld::elf::EhFrameSection<llvm:<wbr>:object::ELFType<(llvm::suppor<wbr>t::endianness)0,
                                                          true>
                                                          >::addSection(lld::elf::InputS<wbr>ectionBase*)</div>
                                                      </div>
                                                      <div>
                                                        <div>  Source:
                                                          /ssd/llvm-project/lld/ELF/Writ<wbr>er.cpp:207</div>
                                                      </div>
                                                      <div>
                                                        <div>  Object:
                                                          lib/liblldELF.a(Writer.cpp.o)</div>
                                                      </div>
                                                      <div>
                                                        <div><br>
                                                        </div>
                                                      </div>
                                                      <div>
                                                        <div><b>Conflicting
                                                          symbols</b></div>
                                                      </div>
                                                      <div>
                                                        <div>/ssd/clang/bin/ld.lld: <span style="color:rgb(255,0,0)">error</span>: duplicate symbol:
                                                          lld::elf::MipsGotSection::addE<wbr>ntry(lld::elf::SymbolBody&,
                                                          long,
                                                          lld::elf::RelExpr)</div>
                                                      </div>
                                                      <div>
                                                        <div>  Source 1:
/ssd/llvm-project/lld/ELF/Writ<wbr>er.cpp:38</div>
                                                      </div>
                                                      <div>
                                                        <div>  Source 2:
/ssd/llvm-project/lld/ELF/Synt<wbr>heticSections.cpp:673</div>
                                                      </div>
                                                      <div>
                                                        <div>  Object 1:
lib/liblldELF.a(Writer.cpp.o)</div>
                                                      </div>
                                                      <div>
                                                        <div>  Object 2
                                                          :
                                                          lib/liblldELF.a(SyntheticSecti<wbr>ons.cpp.o)</div>
                                                      </div>
                                                    </blockquote>
                                                    <div><br>
                                                    </div>
                                                    <div>The new error
                                                      messages contain
                                                      complete
                                                      information that
                                                      the linker is able
                                                      to gather, and it
                                                      uses more vertical
                                                      space to improve
                                                      readability.</div>
                                                    <div><br>
                                                    </div>
                                                    <div>Thoughts?</div>
                                                  </div>
                                                  <br>
                                                </div>
                                              </div>
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                                              <br>
                                            </blockquote>
                                          </div>
                                          <br>
                                        </div>
                                      </div>
                                    </div>
                                  </blockquote>
                                </div>
                              </div>
                            </div>
                            <br>
                          </div>
                        </div>
                        <br>
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                        <br>
                      </blockquote>
                    </div>
                    <br>
                  </div>
                </div>
              </blockquote>
            </div>
            <br>
          </div>
        </div>
      </div>
      <br>
      <fieldset class="m_2383354865062108342gmail-m_748840340857691451gmail-m_2623436989525052654mimeAttachmentHeader"></fieldset>
      <br>
      <pre>______________________________<wbr>_________________
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</pre>
    </blockquote>
    <br>
    </div></div><span class="m_2383354865062108342gmail-m_748840340857691451gmail-HOEnZb"><font color="#888888"><pre class="m_2383354865062108342gmail-m_748840340857691451gmail-m_2623436989525052654moz-signature" cols="72">-- 
Hal Finkel
Lead, Compiler Technology and Programming Languages
Leadership Computing Facility
Argonne National Laboratory</pre>
  </font></span></div>

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