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ignore last. I apparently have review comments I didn't get
notified about.<br>
<br>
Should have checked phabricator and not relied on the commits list
notices. <br>
<br>
Philip<br>
<br>
<div class="moz-cite-prefix">On 06/10/2014 10:55 AM, Philip Reames
wrote:<br>
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<blockquote cite="mid:539746AE.9040507@philipreames.com" type="cite">
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ping.<br>
<br>
<div class="moz-cite-prefix">On 05/29/2014 11:53 AM, Philip Reames
wrote:<br>
</div>
<blockquote cite="mid:5387821E.3010202@philipreames.com"
type="cite">(Again, this doesn't appear to have gone to the
commits list. Anyone have a clue what's I'm doing wrong here?)
<br>
<br>
Remove dead zero store to calloc initialized memory <br>
<br>
<a moz-do-not-send="true" class="moz-txt-link-freetext"
href="http://reviews.llvm.org/D3942">http://reviews.llvm.org/D3942</a>
<br>
<br>
Optimize the following IR: <br>
<br>
%1 = tail call noalias i8* @calloc(i64 1, i64 4) <br>
%2 = bitcast i8* %1 to i32* <br>
; This store is dead and should be removed <br>
store i32 0, i32* %2, align 4 <br>
<br>
Memory returned by calloc is guaranteed to be zero initialized.
If the value being stored is the constant zero (and the store is
not otherwise observable across threads), we can delete the
store. <br>
<br>
Note: I do not have commit rights and will need someone to
commit this change after review. <br>
<br>
Philip <br>
<br>
<br>
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</pre>
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