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Add a small example which shows a vectorizable loop with a non-pow-of-two count 

llvm-svn: 166169
This commit is contained in:
Nadav Rotem 2012-10-18 05:46:16 +00:00
parent d6d9ccca38
commit 00cadb3ed7
1 changed files with 10 additions and 2 deletions
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llvm/docs/ReleaseNotes.html
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@ -466,9 +466,17 @@ Release Notes</a>.</h1>
<p>In addition to many minor performance tweaks and bug fixes, this release <p>In addition to many minor performance tweaks and bug fixes, this release
includes a few major enhancements and additions to the optimizers:</p> includes a few major enhancements and additions to the optimizers:</p>
<p> Loop Vectorizer - We've added a basic loop vectorizer and we are now able <p> Loop Vectorizer - We've added a basic loop vectorizer and we are now able
to vectorize small loops. The loop vectorizer is disabled by default and to vectorize small loops. The loop vectorizer is disabled by default and
can be enabled using the -mllvm -vectorize flags. </p> can be enabled using the -mllvm -vectorize flags. We can vectorize this code:
<pre class="doc_code">
for (i=0; i&lt;n; i++) {
a[i] = b[i+1] + c[i+3] + i;
}
</pre>
</p>
<ul> <ul>
<li>...</li> <li>...</li>