<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:10pt"><div style="font-family: times new roman, new york, times, serif; font-size: 12pt;"><div id="yiv1832182381"><div><div style="color:#000;background-color:#fff;font-family:times new roman, new york, times, serif;font-size:10pt;"><div><span>Dear All,</span></div><div style="color:rgb(0, 0, 0);font-size:13.3333px;font-family:times new roman, new york, times, serif;background-color:transparent;font-style:normal;"><br><span></span></div><div style="color:rgb(0, 0, 0);font-size:13.3333px;font-family:times new roman, new york, times, serif;background-color:transparent;font-style:normal;"><span>I'm a new bee in using LLVM environment.</span></div><div style="color:rgb(0, 0, 0);font-size:13.3333px;font-family:times new roman, new york, times, serif;background-color:transparent;font-style:normal;"><span>I have certain doubts in using
compiler and profiler. Please, someone explain how and why it is so?</span></div><div style="color:rgb(0, 0, 0);font-size:13.3333px;font-family:times new roman, new york, times, serif;
background-color:transparent;font-style:normal;"><br><span></span></div><div style="color:rgb(0, 0, 0);font-size:13.3333px;font-family:times new roman, new york, times, serif;background-color:transparent;font-style:normal;"><span>compiler:</span><span class="yiv1832182381tab"> What is the default optimization level in llvm-gcc?</span></div><div style="color:rgb(0, 0, 0);font-size:13.3333px;font-family:times new roman, new york, times, serif;background-color:transparent;font-style:normal;"><br><span class="yiv1832182381tab"></span></div><div style="color:rgb(0, 0, 0);font-size:13.3333px;font-family:times new roman, new york, times, serif;background-color:transparent;font-style:normal;"><span class="yiv1832182381tab">profiler: 1. During basic block profiling why all functions are not listed.</span></div><div style="color:rgb(0, 0, 0);font-size:13.3333px;font-family:times new roman, new york,
times, serif;
background-color:transparent;font-style:normal;"><span class="yiv1832182381tab"> 2. In function execution frequencies, why only 6 functions are listed?</span></div><div style="color:rgb(0, 0, 0);font-size:13.3333px;font-family:times new roman, new york, times, serif;background-color:transparent;font-style:normal;"><span class="yiv1832182381tab"> 3. There is no information about main() function in profiling many of the applications. Why is it so?</span></div><div style="color:rgb(0, 0, 0);font-size:13.3333px;font-family:times new roman, new york, times, serif;background-color:transparent;font-style:normal;"><br><span class="yiv1832182381tab"></span></div><div style="color:rgb(0, 0,
0);font-size:13.3333px;font-family:times new roman, new york, times, serif;background-color:transparent;font-style:normal;"><span class="yiv1832182381tab">With Thanks,<br></span></div><div> </div><div>R.D.PATEL<br>Research Scholar,E.C.E. Department<br>MANIT, Bhopal<br>M:(91)8085090402, H:(91)8602677554</div></div></div></div><br><br> </div><div style="font-family: times new roman, new york, times, serif; font-size: 10pt;"> </div> </div></body></html>