<div dir="ltr"><pre>Hello,<br><br>Can you check whether your build includes r<a href="https://llvm.org/svn/llvm-project/llvm/trunk@317710" rel="nofollow" target="_blank">317710</a>?<br><br></pre><pre>Thanks,<br><br></pre><pre>Dan<br></pre></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Jan 11, 2018 at 12:51 AM, Carlo Kok via llvm-dev <span dir="ltr"><<a href="mailto:llvm-dev@lists.llvm.org" target="_blank">llvm-dev@lists.llvm.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">(Currently using a build from november but I didn't see any commit that could fix this for wasm); With the wasm backend,<br>
<br>
<br>
 %2 = icmp sgt i8 %0, -1<br>
<br>
becomes:<br>
        i32.const       $4=, 255<br>
        i32.const       $2=, 255<br>
        i32.and         $3=, $0, $2<br>
        i32.const       $5=, 255<br>
        i32.and         $6=, $4, $5<br>
        i32.gt_s        $7=, $3, $6<br>
<br>
Which essentially does (arg & 0xff) > (0xff & 0xff) (if I read it correctly) and seems to always result in false.<br>
<br>
Full testcase:<br>
<a href="https://gist.github.com/carlokok/579b7793465cd0299cf4c609c569f559" rel="noreferrer" target="_blank">https://gist.github.com/carlok<wbr>ok/579b7793465cd0299cf4c609c56<wbr>9f559</a><br>
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</blockquote></div><br></div>