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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Yeah, I found that out, which is why I was hoping some kind of
attribute existed that the compiler knew about.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>We might go the path of modifying llvm-link to only link in
functions that are required as that seems to be the most optimal way of doing
it.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Thanks,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Micah<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
llvmdev-bounces@cs.uiuc.edu [mailto:llvmdev-bounces@cs.uiuc.edu] <b>On Behalf
Of </b>Chris Lattner<br>
<b>Sent:</b> Tuesday, May 05, 2009 7:47 PM<br>
<b>To:</b> LLVM Developers Mailing List<br>
<b>Subject:</b> Re: [LLVMdev] Pass to remove unused functions<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>On May 5, 2009, at 4:50 PM, Villmow, Micah wrote:<o:p></o:p></p>
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<o:p></o:p></p>
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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Is there a way to mark all functions as internal from source via
some sort of attribute?</span><span style='color:black'><o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>"static". However, if you do that, they
won't make it into the bc file.<o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>-Chris<o:p></o:p></p>
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<p class=MsoNormal><br>
<br>
<o:p></o:p></p>
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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> </span><span style='color:black'><o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Thanks for the tips,</span><span style='color:black'><o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Micah</span><span style='color:black'><o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> </span><span style='color:black'><o:p></o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";
color:black'>From:</span></b><span class=apple-converted-space><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'> </span></span><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'><a
href="mailto:llvmdev-bounces@cs.uiuc.edu">llvmdev-bounces@cs.uiuc.edu</a> [<a
href="mailto:llvmdev-bounces@cs.uiuc.edu">mailto:llvmdev-bounces@cs.uiuc.edu</a>]<span
class=apple-converted-space> </span><b>On Behalf Of<span
class=apple-converted-space> </span></b>Chris Lattner<br>
<b>Sent:</b><span class=apple-converted-space> </span>Tuesday, May 05,
2009 4:16 PM<br>
<b>To:</b><span class=apple-converted-space> </span>LLVM Developers
Mailing List<br>
<b>Subject:</b><span class=apple-converted-space> </span>Re: [LLVMdev]
Pass to remove unused functions</span><span style='color:black'><o:p></o:p></span></p>
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<p class=MsoNormal><span style='color:black'> <o:p></o:p></span></p>
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<p class=MsoNormal><span style='color:black'> <o:p></o:p></span></p>
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<p class=MsoNormal><span style='color:black'>On May 5, 2009, at 4:07 PM,
Villmow, Micah wrote:<o:p></o:p></span></p>
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<o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I thought this pass would do it, but when I run it over my bc
file the output file is the same as the input file.</span><span
style='color:black'><o:p></o:p></span></p>
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<p class=MsoNormal><span style='color:black'> <o:p></o:p></span></p>
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<p class=MsoNormal><span style='color:black'>that's probably because your
symbols are not internal.<o:p></o:p></span></p>
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<p class=MsoNormal><span style='color:black'><br>
<br>
<br>
<o:p></o:p></span></p>
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<p class=MsoNormal><span style='color:black'> <o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>The issue I guess is a little different. When I link in
the huge bc file with the tiny bc file, I only want the resulting bc file to
have the function definitions that the tiny bc file requires and not every
function in the huge bc file.</span><span style='color:black'><o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> </span><span style='color:black'><o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Any idea’s how to do this with the current llvm toolset?</span><span
style='color:black'><o:p></o:p></span></p>
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<p class=MsoNormal><span style='color:black'> <o:p></o:p></span></p>
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<p class=MsoNormal><span style='color:black'>You have to roll your own using
the lower level APIs. You can move functions between modules etc.
Alternatively, you can link the two modules and mark the functions you
don't want as internal, then use globaldce.<o:p></o:p></span></p>
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<p class=MsoNormal><span style='color:black'> <o:p></o:p></span></p>
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<p class=MsoNormal><span style='color:black'>-Chris<o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:9.0pt;font-family:"Helvetica","sans-serif";
color:black'>_______________________________________________<br>
LLVM Developers mailing list<br>
<a href="mailto:LLVMdev@cs.uiuc.edu">LLVMdev@cs.uiuc.edu</a>
<a
href="http://llvm.cs.uiuc.edu">http://llvm.cs.uiuc.edu</a><br>
<a href="http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev">http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev</a><o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
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