<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Thu, May 29, 2014 at 11:53 AM, Philip Reames <span dir="ltr"><<a href="mailto:listmail@philipreames.com" target="_blank">listmail@philipreames.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">(Again, this doesn't appear to have gone to the commits list. Anyone have a clue what's I'm doing wrong here?)<br>
</blockquote><div><br></div><div>There was a behavior change when phab moved to <a href="http://reviews.llvm.org">reviews.llvm.org</a>. Now it doesn't send mail when you add a "subscriber" to the issue. This is unfortunate and I'd be happy if it were fixed, but until then I try to make sure I create the issue with llvm-commits in the subscriber field before submitting it. Using 'arc' from the command line makes this easy, but I know it isn't everyone's cup of tea.</div>
<div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Remove dead zero store to calloc initialized memory<br>
<br>
<a href="http://reviews.llvm.org/D3942" target="_blank">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.<span class="HOEnZb"><font color="#888888"><br>
<br>
Philip<br>
<br>
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<br></blockquote></div><br></div></div>