<div dir="ltr">So the warning that you're getting is exactly what's going on. You're trying an old version of the debug information metadata with a newer llvm. You should likely use a newer clang if you're going to work with a newer llvm or an older llvm if you're going to work with an older clang.<div><br></div><div>Thanks!</div><div><br></div><div>-eric</div></div><br><div class="gmail_quote"><div dir="ltr">On Wed, Jun 17, 2015 at 3:25 PM Haopeng Liu <<a href="mailto:hyliuhp@gmail.com">hyliuhp@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div text="#000000" bgcolor="#FFFFFF">
Hi Eric,<br>
<br>
Thanks for your reply. I use CallGraphWrapperPass to traverse the
call graph. <br>
<br>
for (CallGraph::iterator i =...) {<br>
 for (CallGraphNode::iterator j = ...) {<br>
   Function *func = j->second->getFunction();<br>
   //dump all instructions in func<br>
<br>
I tried my pass on a small toy program. It can print dbg info for
each instruction. <br>
<br>
However, when I tried on transmission software, it reports an
warning: "warning: ignoring debug info with an invalid version (1)
in transmissioncli.bc".<br>
And all dbg info was removed. <br>
<br>
I compiled transmission with clang 3.6.1. Any suggestion?<br>
<br>
-haopeng<br>
<br>
When I run my Pass on an example *.c , i</div><div text="#000000" bgcolor="#FFFFFF"><br>
<br>
<div>On 6/17/15 4:43 PM, Eric Christopher
wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">Hmm? Can you be more specific? i.e. things like
inlining are CGSCC passes and handle debug information just
fine.
<div><br>
</div>
<div>-eric</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr">On Wed, Jun 17, 2015 at 2:35 PM Haopeng Liu <<a href="mailto:hyliuhp@gmail.com" target="_blank">hyliuhp@gmail.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi All,<br>
<br>
It seems that functions in callgraph remove all metadata info,
such as dbg.<br>
<br>
Can I keep metadata in callgraph?<br>
<br>
Best,<br>
Haopeng<br>
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</blockquote>
</div>
</blockquote>
<br>
</div></blockquote></div>