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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Thanks, Craig!<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">My main reason for the patch was to accept ‘l’ for si2ss and si2sd. I added the rest for (possibly misguided) completeness.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Matching gas behavior sounds like a good idea to me.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Michael<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Craig Topper [mailto:craig.topper@gmail.com]
<br>
<b>Sent:</b> Sunday, January 06, 2013 05:20<br>
<b>To:</b> Kuperstein, Michael M; Nadav Rotem<br>
<b>Cc:</b> llvm-commits@cs.uiuc.edu<br>
<b>Subject:</b> Re: [PATCH] [X86] Add {l} suffix to cvtsi2ss (and similar) mnemonics.<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt;line-height:115%">I started looking at what gas does here.<br>
<br>
For si2ss/si2sd, gas will treat 'q' at 64-bit and 'l' or no suffix as 32-bit. When disassembling it always prints with the suffix.<br>
For ss2si/sd2si, gas will accept 'l' or 'q' or it will use the size of the destination register if no suffix is supplied. Disassembly doesn't print a suffix.<br>
<br>
I've attached a patch that should match gas behavior. Not sure which way we want to go on this. Nadav, any thoughts?<br>
<br>
~Craig<o:p></o:p></p>
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<p class="MsoNormal" style="line-height:115%">On Tue, Jan 1, 2013 at 4:58 AM, Kuperstein, Michael M <<a href="mailto:michael.m.kuperstein@intel.com" target="_blank">michael.m.kuperstein@intel.com</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Hi,<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">The attached patch adds {l} suffixes to the mnemonics of all 32-bit X86 scalar integer <=> float convert instructions, e.g. cvtsi2ss => cvtsi2ss{l}. The {q} versions were already
present, added by ctopper in r160775. <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I haven’t really touched this area before so I’m not at all sure I’m doing the right thing by adding the suffix, as opposed to having aliases. Can anyone (Craig? :-) ) review?<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Thanks,<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> Michael<o:p></o:p></p>
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<br>
-- <br>
~Craig <o:p></o:p></p>
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