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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">Hi Michihiro,<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">this change needs to get reviewed on hotspot-compiler-dev (added).<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">Also added missing „RFR“.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">The change looks good. I only have very minor requests:<o:p></o:p></span></p>
<pre><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">“</span><span lang="EN-US">_Ex</span><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">” should be removed from the new instruct names. They aren’t expand rules.<o:p></o:p></span></pre>
<pre><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">Please also update the copyright year in the header of the ad file.<o:p></o:p></span></pre>
<pre><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></pre>
<pre><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">Maybe Gustavo can test it, write a 2<sup>nd</sup> review and push it when it’s good.<o:p></o:p></span></pre>
<pre><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></pre>
<pre><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">Best regards,<o:p></o:p></span></pre>
<pre><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">Martin<o:p></o:p></span></pre>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Michihiro Horie <HORIE@jp.ibm.com>
<br>
<b>Sent:</b> Donnerstag, 22. November 2018 06:40<br>
<b>To:</b> ppc-aix-port-dev@openjdk.java.net<br>
<b>Cc:</b> Gustavo Romero <gromero@linux.vnet.ibm.com>; Doerr, Martin <martin.doerr@sap.com><br>
<b>Subject:</b> RFR: 8214205: PPC64: Add instructions for counting trailing zeros<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p><span style="font-size:10.0pt;color:#2F2F2F">Dear all,</span><br>
<br>
<span style="font-size:10.0pt;color:#2F2F2F">Would you please review the following change that enables POWER9’s instructions for counting trailing zeros?</span><br>
<br>
<span style="font-size:10.0pt;color:#2F2F2F">Bug: </span><a href="https://bugs.openjdk.java.net/browse/JDK-8214205"><span style="font-size:10.0pt">https://bugs.openjdk.java.net/browse/JDK-8214205</span></a><br>
<span style="font-size:10.0pt;color:#2F2F2F">Webrev: </span><a href="http://cr.openjdk.java.net/~mhorie/8214205/webrev.00/"><span style="font-size:10.0pt">http://cr.openjdk.java.net/~mhorie/8214205/webrev.00/</span></a><br>
<br>
<span style="font-size:10.0pt;color:#2F2F2F">Simple micro benchmark attached showed improvements by around 30%.</span><br>
<i>(See attached file: CNTTZTest.java)</i><br>
<br>
<span style="font-size:10.0pt">Currently, Gustavo@IBM can test POWER9 specific changes. (Thanks Gustavo!)</span><br>
<br>
<br>
<span style="font-size:10.0pt">Best regards,</span><br>
<span style="font-size:10.0pt">--</span><br>
<span style="font-size:10.0pt">Michihiro,</span><br>
<span style="font-size:10.0pt">IBM Research - Tokyo</span><o:p></o:p></p>
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