* [wwwdocs] [committed] vectorizer webpage updated
@ 2007-07-25 20:49 Dorit Nuzman
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From: Dorit Nuzman @ 2007-07-25 20:49 UTC (permalink / raw)
To: gcc-patches
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I committed the attached update to the vectorizer webpage
(http://gcc.gnu.org/projects/tree-ssa/vectorization.html).
dorit
(See attached file: wwwdiff.txt)
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Index: vectorization.html
===================================================================
RCS file: /cvs/gcc/wwwdocs/htdocs/projects/tree-ssa/vectorization.html,v
retrieving revision 1.18
diff -c -p -r1.18 vectorization.html
*** vectorization.html 9 May 2007 18:24:37 -0000 1.18
--- vectorization.html 25 Jul 2007 20:25:02 -0000
***************
*** 35,40 ****
--- 35,71 ----
<h2><a name="news">Latest News</a></h2>
<dl>
+ <dt>2007-07-25</dt>
+ <dd>The new vectorization feature that exploits intra-iteration parallelism
+ (to be submitted to GCC 4.3) was presented at the GCC summit last week ("Loop-aware SLP").
+ Also at the summit, we held a BOF on vectorization and other loop optimizations. The summary
+ of the BOF can be found here: <a href="http://gcc.gnu.org/wiki/LoopOptimizationsBOF">
+ http://gcc.gnu.org/wiki/LoopOptimizationsBOF</a>. Following the BOF the vectorizer's todo list
+ was also updated (<a href="http://gcc.gnu.org/wiki/VectorizationTasks">
+ http://gcc.gnu.org/wiki/VectorizationTasks</a>).
+ </dd>
+ <dd>Mainline updates:
+ <ol>
+ <li>SPU specific costs for the cost model committed to mainline (2007-07-12).
+ Tuning for other platforms (PPC, X86) ongoing. </li>
+ <li>Initial cost model implementation committed to mainline (2007-06-08). </li>
+ <li>Vectorization of fp/integer conversions of different sizes (e.g. float/short)
+ committed to mainline (2007-05-17).</li>
+ <li>Data-refs analysis was rewritten and improved (2007-05-13). </li>
+ </ol>
+ </dd>
+ <dd>Autovect-branch updates:
+ <ol>
+ <li>Outer-loop vectorization was enhanced to support aligned and unaligned
+ memory references in the inner-loop, using the optimized realignment
+ scheme when possible. </li>
+ <li>Vectorization that exploits intra-iteration parallelism (ala SLP)
+ was added to the vectorizer (that so far exploited only inter-iteration
+ parallelism). </li>
+ <li>The vectorizer cost model was extended to support the above two new vectorization
+ features (outer-loop and "SLP"). </li>
+ </ol>
+ </dd>
<dt>2007-05-09</dt>
<dd>
<ol>
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2007-07-25 20:49 [wwwdocs] [committed] vectorizer webpage updated Dorit Nuzman
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