<div dir="ltr">Hi Andrew,<div><br></div><div style>That seems like a useful clarification. I've updated the docs with your suggested text (with some tweaks) in r172680.</div><div style><br></div><div style>Thanks for the suggestion.</div>
<div style><br></div><div style>Cheers,</div><div style>Lang.</div><div style><br></div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Mon, Jan 14, 2013 at 5:25 AM, Andrew Booker <span dir="ltr"><<a href="mailto:Andrew.Booker@arm.com" target="_blank">Andrew.Booker@arm.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Thanks for all the replies - it pretty much confirmed what I think I'd<br>
worked out about how fmuladd is supposed to behave.<br>
<br>
But my initial query wasn't asking what fmuladd did - it was asking for<br>
the documentation about it to be clarified. Can I suggest that the<br>
Overview section for fmuladd is changed to say the following (the key<br>
point being the removal of the word "legal" in the description, to<br>
avoid confusion with whether the optimisation is legal from the point<br>
of view of the source language):<br>
<br>
The llvm.fmuladd.* intrinsic functions represent multiply-add<br>
expressions that can be fused if the code generator determines that the<br>
target instruction set has support for a fused expression, and that its<br>
use would be efficient.<br>
<div class="im"><br>
Andrew<br>
<br>
--<br>
Andrew Booker, Staff Software Engineer<br>
Media Processing Division<br>
ARM Ltd, 110 Fulbourn Road, Cambridge CB1 9NJ, UK<br>
Tel: <a href="tel:%2B44%201223%20400695" value="+441223400695">+44 1223 400695</a> Fax: <a href="tel:%2B44%201223%20400410" value="+441223400410">+44 1223 400410</a><br>
<br>
<br>
<br>
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