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<p class="MsoNormal"><span style="font-size:14.0pt">To whom it may concern,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt">I’m running some testcases(A and B) in Linux LLVM(built in Ubuntu16.04) and Windows LLVM(built by Visual Studio 2015), both of which were LLVM 4.0.0 and built with same source codes, but I got different assembly
files(A_Linux != A_Windows, B_Linux = B_Windows). Privacy reasons prevent me from sharing my testcases here, sorry.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt">I compared debug information and found the root cause in MachinePipliner.cpp that Node orders differed after sort algorithm.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt">There were two `std::sort` in this file and when I replaced them with ‘std::stable_sort’, these two assembly files became the same but other assembly files differed(A_Linux = A_Windows, B_Linux != B_Windows).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt">I cannot figure out the reason and could you give me some advice why this happened and what sort algorithm should I use to get exactly same assembly files?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt">Best regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt">Ruobin<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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