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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal> Hi,<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal> I have couple of questions that those who design
unconventional passes would be interested in.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoListParagraph style='margin-left:20.25pt;text-indent:-.25in;
mso-list:l0 level1 lfo1'><![if !supportLists]><span style='mso-list:Ignore'>1.<span
style='font:7.0pt "Times New Roman"'> </span></span><![endif]>How
to move a virtual register data to another new virtual register?<o:p></o:p></p>
<p class=MsoNormal style='margin-left:20.25pt'>It seems like that there is no
LLVM instruction similar to mov machine instruction.<o:p></o:p></p>
<p class=MsoNormal style='margin-left:20.25pt'>Arithmetic or logical operators
could be used for integer variables<o:p></o:p></p>
<p class=MsoNormal style='margin-left:20.25pt'>but what about pointer variables?<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoListParagraph style='margin-left:20.25pt;text-indent:-.25in;
mso-list:l0 level1 lfo1'><![if !supportLists]><span style='mso-list:Ignore'>2.<span
style='font:7.0pt "Times New Roman"'> </span></span><![endif]>What
is typically IR-level pass execution order? Especially when we separately execute<o:p></o:p></p>
<p class=MsoListParagraph style='margin-left:20.25pt'>the front-end, IR optimizer,
and back-end, this information seems to be needed.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoListParagraph style='margin-left:20.25pt;text-indent:-.25in;
mso-list:l0 level1 lfo1'><![if !supportLists]><span style='mso-list:Ignore'>3.<span
style='font:7.0pt "Times New Roman"'> </span></span><![endif]>In
code generator, how can we add new instruction in a way that back-end consider<o:p></o:p></p>
<p class=MsoListParagraph style='margin-left:20.25pt'>this added instruction for
its instruction scheduling and register allocation?<o:p></o:p></p>
<p class=MsoNormal style='margin-left:20.25pt'> <o:p></o:p></p>
<p class=MsoNormal> Thanks in advance.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal> - Keun Soo<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
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