<div dir="ltr"><br>
</div><div dir="ltr">Actually I want to run some analysis pass only on the user defined functions but not on the library functions. Is there any boolean method that can tell which is a library function and which is not? </div><div class="wps_quotion">On 5 Feb 2020 5:23 a.m., David Blaikie <dblaikie@gmail.com> wrote:<br type="attribution"><blockquote class="quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Generally, you can't - and optimizations/the compiler shouldn't differentiate between them.</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Feb 4, 2020 at 3:25 PM Sunil via llvm-dev <<a href="mailto:llvm-dev@lists.llvm.org">llvm-dev@lists.llvm.org</a>> wrote:<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>
<p>Say, I have the following program:</p>
<div><font face="Courier New, Courier, monospace"> #include
<iostream><br>
int main(){<br>
std::cout << "hello\n";<br>
return 0;</font></div>
<div><font face="Courier New, Courier, monospace"> }</font><br>
</div>
<div><br>
</div>
<div>After generating llvm bitcode using the following command: </div>
<div> $ <font face="Courier New, Courier, monospace">clang++
-c -emit-llvm -O -Xclang -disable-llvm-passes a.cpp</font><br>
</div>
<div>the bitcode has the following function with define.</div>
<div> <font face="Courier New, Courier, monospace">__cxx_global_var_init<br>
main<br>
_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc<br>
_ZNSt9basic_iosIcSt11char_traitsIcEE8setstateESt12_Ios_Iostate<br>
_ZNSt11char_traitsIcE6lengthEPKc<br>
_ZStorSt12_Ios_IostateS_<br>
_ZNKSt9basic_iosIcSt11char_traitsIcEE7rdstateEv<br>
_GLOBAL__sub_I_a.cpp<br>
</font></div>
<div><br>
</div>
<div>In a pass, I want to know what are the functions defined by the
user e.g 'main' and what are not e.g. other than 'main'.</div>
<div><br>
</div>
<div>Regards,</div>
<div> Sunil</div>
</div>
_______________________________________________<br>
LLVM Developers mailing list<br>
<a href="mailto:llvm-dev@lists.llvm.org" target="_blank">llvm-dev@lists.llvm.org</a><br>
<a href="https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev" rel="noreferrer" target="_blank">https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev</a><br>
</blockquote></div>
</blockquote></div>