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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">One way, and most likely the easiest, is to write/use a library that does what you want and then write an LLVM IR pass that inserts function calls to execute
at runtime and link in your library.<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>
<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>Jin Huang<br>
<b>Sent:</b> Wednesday, January 01, 2014 9:39 PM<br>
<b>To:</b> llvmdev@cs.uiuc.edu<br>
<b>Subject:</b> [LLVMdev] Tracing values in llvm IR<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"><span style="font-family:"Tahoma","sans-serif"">Hi, everyone.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Tahoma","sans-serif""><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Tahoma","sans-serif"">I want to writing a Pass to get the variable value while the program is running ,the basic idea is to insert an STL map in the program ,and get every value and address a program use ,but whether
it's possible to do this by transforming the llvm IR?<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Tahoma","sans-serif""><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Tahoma","sans-serif"">I didn't find any useful functions to get a variable's address in LLVM IR .It seems that the IR is an SSA form and we can not get a value's address in compiling time.Is that right? But how
can I dynamically get the variable's value in run time by writing a Pass ?<o:p></o:p></span></p>
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