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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I am working on implementing break/continue and the flow
control graphs that I am seeing are having all sorts of weird flow control that
does not necessarily exist in the IR representation. For, example, a simple
code segment that is a while loop w/ a continue ends up generating a CFG that
is two while loops with one embedded inside each other. I’ve attached the
dot files and the IR code. Any help with figuring out what is causing this craziness
would be greatly appreciated.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>It was compiled with:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>llvm-as < float/test_fc_while_continue_gt.ll | opt
-std-compile-opts -loopsimplify -simplifycfg -print-cfg > float/test_fc_while_continue_gt.bc<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>llc -march=mybackend float/test_fc_while_continue_gt.bc<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Thanks for your time.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Micah Villmow<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Systems Engineer<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Advanced Technology & Performance<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Advanced Micro Devices Inc.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><ns0:Street w:insAuthor="Micah Villmow"
w:insDate="2008-10-13T15:08:00Z" w:endInsAuthor="Micah Villmow"
w:endInsDate="2008-10-13T15:08:00Z"><ns0:address w:insAuthor="Micah Villmow"
w:insDate="2008-10-13T15:08:00Z" w:endInsAuthor="Micah Villmow"
w:endInsDate="2008-10-13T15:08:00Z"><st1:Street w:st="on"><st1:address w:st="on">4555
Great America Pkwy</st1:address></st1:Street></ns0:address></ns0:Street>,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><ns0:place w:insAuthor="Micah Villmow"
w:insDate="2008-10-13T15:08:00Z" w:endInsAuthor="Micah Villmow"
w:endInsDate="2008-10-13T15:08:00Z"><ns0:City w:insAuthor="Micah Villmow"
w:insDate="2008-10-13T15:08:00Z" w:endInsAuthor="Micah Villmow"
w:endInsDate="2008-10-13T15:08:00Z"><st1:City w:st="on"><st1:place w:st="on">Santa
Clara</st1:place></st1:City></ns0:City></ns0:place>, CA. 95054<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>P: 408-572-6219<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>F: 408-572-6596</span></font><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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