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<div class="moz-cite-prefix">On 1/15/16 9:44 AM, Mohammad Norouzi
via llvm-dev wrote:<br>
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cite="mid:CAFVz=BVPQ11dBj8ERmHqgFsQhpm9W5xkTv2x5DHjN=3JewDS2w@mail.gmail.com"
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<div>Hi all,<br>
<br>
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Is it possible to have phi nodes as an operand to an
instruction?<br>
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Yes, you can use a phi node as an operand to an instruction.
However, the phi-node must dominate any instruction that uses it as
an operand.<br>
<br>
Regards,<br>
<br>
John Criswell<br>
<br>
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cite="mid:CAFVz=BVPQ11dBj8ERmHqgFsQhpm9W5xkTv2x5DHjN=3JewDS2w@mail.gmail.com"
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For example, instead of <br>
<br>
<pre><font size="2">%input = phi <ty> [ <val0>, <label0>] [<val1>, <label1>]
%2 = .....
</font></pre>
<pre><font size="2">%add = add i32 %2, %input</font>
</pre>
<pre>we have sth like this:
<font size="2">
%add = add i32 %2, %phi <ty> [ <val0>, <label0>] [<val1>, <label1>]</font></pre>
<pre>
Best,
</pre>
<pre>Mo
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<br>
<pre class="moz-signature" cols="72">--
John Criswell
Assistant Professor
Department of Computer Science, University of Rochester
<a class="moz-txt-link-freetext" href="http://www.cs.rochester.edu/u/criswell">http://www.cs.rochester.edu/u/criswell</a></pre>
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