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<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Nevermind, I think this is exactly why passes may require passes. A modification pass would invalidate the program and must therefore not be placed between a required pass and the pass that requires
it.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Christoph<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="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";mso-fareast-language:DE">Von:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-fareast-language:DE"> llvmdev-bounces@cs.uiuc.edu [mailto:llvmdev-bounces@cs.uiuc.edu]
<b>Im Auftrag von </b>Czurda Christoph<br>
<b>Gesendet:</b> Dienstag, 16. Juni 2015 15:28<br>
<b>An:</b> llvmdev@cs.uiuc.edu<br>
<b>Betreff:</b> [LLVMdev] Scheduling of machine passes<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-US">Hello,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I have a question about the execution order of machine passes:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I have written 2 machine function passes. The first is read-only ( analysisUsage.setPreservesAll() ). The second depends on the first and modifies the program based on the results of the first one ( analysisUsage.setPreservesCFG()
). I would appreciate it if the program did not change between those 2. <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Can I assume that the pass manager does not insert any other modification passes in front of my modification pass?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Best regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Christoph<o:p></o:p></span></p>
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