<div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">I believe Crag answered your problem. As for the command line option, usually you can use `-help-hidden` to list developers' option, `-debug-only` is one example.</div></div><div class="gmail_extra"><br><div class="gmail_quote">2017-12-21 23:39 GMT+08:00 Craig Topper via llvm-dev <span dir="ltr"><<a href="mailto:llvm-dev@lists.llvm.org" target="_blank">llvm-dev@lists.llvm.org</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div dir="auto">-debug-only only works on builds with assertions enabled. Your version string says optimized build and doesn’t mention assertions.</div><div><div class="h5"><br><div class="gmail_quote"><div>On Thu, Dec 21, 2017 at 7:15 AM Leslie Zhai via llvm-dev <<a href="mailto:llvm-dev@lists.llvm.org" target="_blank">llvm-dev@lists.llvm.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi LLVM developers,<br>
<br>
llc -march=mips -debug-only=isel was able to work in Nov 8 2017<br>
<a href="https://reviews.llvm.org/D39723" rel="noreferrer" target="_blank">https://reviews.llvm.org/<wbr>D39723</a><br>
<br>
But it doesn't work now:<br>
<br>
$ clang --version<br>
LLVM China clang version 6.0.0 (git@github.com:llvm-mirror/<wbr>clang.git<br>
9b7b03045ee9b5622028537266aafe<wbr>b9ea218ac1)<br>
(git@github.com:llvm-mirror/<wbr>llvm.git<br>
3a26601a88394c02603b8756527c55<wbr>df9ab94d78) (based on LLVM 6.0.0svn)<br>
Target: x86_64-redhat-linux<br>
Thread model: posix<br>
InstalledDir: /data/project/xiangzhai/llvm/<wbr>build/./bin<br>
$ llc --version<br>
LLVM (<a href="http://llvm.org/" rel="noreferrer" target="_blank">http://llvm.org/</a>):<br>
   LLVM version 6.0.0svn<br>
   Optimized build.<br>
   Default target: x86_64-redhat-linux<br>
   Host CPU: broadwell<br>
<br>
llc: Unknown command line argument '-debug-only=isel'.  Try:<br>
'/data/project/xiangzhai/llvm/<wbr>build/bin/llc -help'<br>
llc: Did you mean '-debug-pass=isel'?<br>
<br>
I couldn't grep debug-only command flags or options via git log, please<br>
give me some hint, thanks a lot!<br>
<br>
--<br>
Regards,<br>
Leslie Zhai - <a href="https://reviews.llvm.org/p/xiangzhai/" rel="noreferrer" target="_blank">https://reviews.llvm.org/p/<wbr>xiangzhai/</a><br>
<br>
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</blockquote></div></div></div></div><span class="HOEnZb"><font color="#888888"><div dir="ltr">-- <br></div><div class="m_8823773661113038372gmail_signature" data-smartmail="gmail_signature">~Craig</div>
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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div>Wei-Ren Chen (陳韋任)<br>Homepage: <a href="https://people.cs.nctu.edu.tw/~chenwj" target="_blank">https://people.cs.nctu.edu.tw/~chenwj</a></div></div></div>
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