<div style="line-height:1.7;color:#000000;font-size:14px;font-family:arial"><span style="line-height: 1.7; white-space: pre-wrap;">>> (3) About detecting scop regions in bottom-up order.</span><br><pre>>> Detecting scop regions in bottom-up order can significantly speed up the scop detection pass. However, as I have discussed with Sebastian, detecting scops in bottom-up order and up-bottom order will lead to different results. As a result, we should not change the detection order.
>
>Sebastian had a patch for this. Does his patch improve the scop
>detection time.
</pre><pre>LNT testing results for Sebastian's patch file can be seen on <a href="http://188.40.87.11:8000/db_default/v4/nts/recent_activity">http://188.40.87.11:8000/db_default/v4/nts/recent_activity</a> (Run Order: <a href="http://188.40.87.11:8000/db_default/v4/nts/order/6" style="color: rgb(0, 136, 204); text-decoration: none; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; line-height: 20px;">ScopDetect130615</a>). You can compare ScopDetect130615 (Polly with Sebastian's patch) to <a href="http://188.40.87.11:8000/db_default/v4/nts/order/5" style="color: rgb(0, 85, 128); outline: 0px; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; line-height: 20px;">pOpt130615</a> (Polly without Sebastian's patch). The result seems not show significant performance improvements with the bottom-up patch for LLVM test-suite benchmarks.</pre><pre>You are right. I think I should better firstly focus on the some simple examples, such as <span style="line-height: 1.!
7;">oggenc, to understand where scop detection pass spend its time. After that, we can then investigate the scop detection order.</span></pre><pre><span style="line-height: 1.7;">Bests,</span></pre><pre>Star Tan</pre></div>