<div dir="ltr">Hi Philip,<br><div class="gmail_quote"><br></div><div class="gmail_quote">On Wed Feb 18 2015 at 10:11:32 PM Philip Reames <<a href="mailto:listmail@philipreames.com">listmail@philipreames.com</a>> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
  
    
  
  <div bgcolor="#FFFFFF" text="#000000">
    You are mostly likely using a Release build.  -stats only does
    anything with Assertions enabled.</div></blockquote><div><br></div><div>So to use the -stats flag, I must compile LLVM and clang from source, with --enable-assertions ? That seems quite drastic just to see the printout of statistics for each pass applied on my IR.</div><div><br></div><div>--</div><div>Rob</div><div> <br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div bgcolor="#FFFFFF" text="#000000">
    <br>
    <div>On 02/18/2015 08:58 AM, Rob Stewart
      wrote:<br>
    </div>
    </div><div bgcolor="#FFFFFF" text="#000000"><blockquote type="cite">
      <div dir="ltr"><span style="font-size:13.1999998092651px;line-height:19.7999992370605px">Given
          the program:</span>
        <div style="font-size:13.1999998092651px;line-height:19.7999992370605px"><br>
        </div>
        <div style="font-size:13.1999998092651px;line-height:19.7999992370605px">
          <div>int sum(int i,int j)</div>
          <div>{ return i+j; }</div>
          <div><br>
          </div>
          <div>int main()</div>
          <div>{ sum(3,2); }</div>
        </div>
        <div style="font-size:13.1999998092651px;line-height:19.7999992370605px"><br>
        </div>
        <div style="font-size:13.1999998092651px;line-height:19.7999992370605px">$
          clang -S -emit-llvm foo.c<br>
        </div>
        <div style="font-size:13.1999998092651px;line-height:19.7999992370605px"><br>
        </div>
        <div style="font-size:13.1999998092651px;line-height:19.7999992370605px">Now
          I'd like to print all statistics. Unfortunately, the following
          prints nothing:</div>
        <div style="font-size:13.1999998092651px;line-height:19.7999992370605px"><br>
        </div>
        <div style="font-size:13.1999998092651px;line-height:19.7999992370605px">$
          opt -S -O3 -stats < foo.ll > /dev/null<br>
        </div>
        <div style="font-size:13.1999998092651px;line-height:19.7999992370605px"><br>
        </div>
        <div style="font-size:13.1999998092651px;line-height:19.7999992370605px">However,
          running the following prints an IR that is different to the
          contents of foo.ll:</div>
        <div style="font-size:13.1999998092651px;line-height:19.7999992370605px"><br>
        </div>
        <div style="font-size:13.1999998092651px;line-height:19.7999992370605px">$
          opt -S -O3 foo.ll<br>
        </div>
        <div style="font-size:13.1999998092651px;line-height:19.7999992370605px"><br>
        </div>
        <div style="font-size:13.1999998092651px;line-height:19.7999992370605px">I'm
          using LLVM 3.5. <span style="font-size:13.1999998092651px">I'm
            doing something very obviously wrong. What is it?</span></div>
        <div style="font-size:13.1999998092651px;line-height:19.7999992370605px"><br>
        </div>
        <div style="font-size:13.1999998092651px;line-height:19.7999992370605px">--</div>
        <div style="font-size:13.1999998092651px;line-height:19.7999992370605px">Rob</div>
      </div>
      <br>
      <fieldset></fieldset>
      <br>
      </blockquote></div><div bgcolor="#FFFFFF" text="#000000"><blockquote type="cite"><pre>_______________________________________________
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</pre>
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