<p dir="ltr">Awesome. I should have nbers in a couple of days. Any interesting change to binary size that you've seen?</p>
<div class="gmail_quote">On Sep 3, 2013 2:37 PM, "Nadav Rotem" <<a href="mailto:nrotem@apple.com">nrotem@apple.com</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Author: nadav<br>
Date: Tue Sep  3 16:33:17 2013<br>
New Revision: 189858<br>
<br>
URL: <a href="http://llvm.org/viewvc/llvm-project?rev=189858&view=rev" target="_blank">http://llvm.org/viewvc/llvm-project?rev=189858&view=rev</a><br>
Log:<br>
Enable late-vectorization by default.<br>
This patch changes the default setting for the LateVectorization flag that controls where the loop-vectorizer is ran.<br>
<br>
Perf gains:<br>
SingleSource/Benchmarks/Shootout/matrix -37.33%<br>
MultiSource/Benchmarks/PAQ8p/paq8p  -22.83%<br>
SingleSource/Benchmarks/Linpack/linpack-pc  -16.22%<br>
SingleSource/Benchmarks/Shootout-C++/ary3 -15.16%<br>
MultiSource/Benchmarks/TSVC/NodeSplitting-flt/NodeSplitting-flt -10.34%<br>
MultiSource/Benchmarks/TSVC/NodeSplitting-dbl/NodeSplitting-dbl -7.12%<br>
<br>
Regressions:<br>
SingleSource/Benchmarks/Misc/lowercase  15.10%<br>
MultiSource/Benchmarks/TSVC/Equivalencing-flt/Equivalencing-flt 13.18%<br>
SingleSource/Benchmarks/Shootout-C++/matrix 8.27%<br>
SingleSource/Benchmarks/CoyoteBench/lpbench 7.30%<br>
<br>
<br>
Modified:<br>
    llvm/trunk/lib/Transforms/IPO/PassManagerBuilder.cpp<br>
<br>
Modified: llvm/trunk/lib/Transforms/IPO/PassManagerBuilder.cpp<br>
URL: <a href="http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/IPO/PassManagerBuilder.cpp?rev=189858&r1=189857&r2=189858&view=diff" target="_blank">http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/IPO/PassManagerBuilder.cpp?rev=189858&r1=189857&r2=189858&view=diff</a><br>

==============================================================================<br>
--- llvm/trunk/lib/Transforms/IPO/PassManagerBuilder.cpp (original)<br>
+++ llvm/trunk/lib/Transforms/IPO/PassManagerBuilder.cpp Tue Sep  3 16:33:17 2013<br>
@@ -33,7 +33,7 @@ RunLoopVectorization("vectorize-loops",<br>
                      cl::desc("Run the Loop vectorization passes"));<br>
<br>
 static cl::opt<bool><br>
-LateVectorization("late-vectorize", cl::init(false), cl::Hidden,<br>
+LateVectorization("late-vectorize", cl::init(true), cl::Hidden,<br>
                   cl::desc("Run the vectorization pasess late in the pass "<br>
                            "pipeline (after the inliner)"));<br>
<br>
<br>
<br>
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</blockquote></div>