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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Hi Jordan,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">You’re right, and the driver -target option works perfectly with the SPIR triples.<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">Thanks<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> Guy Benyei<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><img width="420" height="116" id="Picture_x0020_1" src="cid:image001.png@01CDFA13.036EFB60" alt="email_signature_guy_new2"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
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<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""> Jordan Rose [mailto:jordan_rose@apple.com]
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<b>Sent:</b> Wednesday, January 23, 2013 19:47<br>
<b>To:</b> Benyei, Guy<br>
<b>Cc:</b> ankur deshwal; cfe-dev@cs.uiuc.edu; llvmdev@cs.uiuc.edu<br>
<b>Subject:</b> Re: [cfe-dev] OpenCL SPIR/NVPTX code generation<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Jan 23, 2013, at 4:04 , "Benyei, Guy" <<a href="mailto:guy.benyei@intel.com">guy.benyei@intel.com</a>> wrote:<o:p></o:p></p>
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<o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Hi Ankur,</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Since you use –Xclang, the clang executable passes multiple triples to “clang -cc1”. You can see that if you add the -v option. I’m sure there is someone here
who can explain it better than I…</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Anyhow, I think you better use clang -cc1. Make sure -cc1 is the first command line option you use.</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">$ clang -cc1 -fno-builtin -emit-llvm-bc -triple spir-unknown-unknown Simple_Kernel.cl -o Simple_Kernel.bc</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">should work for you.</span><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">clang -cc1 shouldn't ever be necessary for end users of clang, particularly because cc1 options are not guaranteed to be stable. You also lose all the default options that the driver normally passes down. It's possible this doesn't matter
much for SPIR, at least not right now, but it's not something we should be recommending or supporting.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">-target is the driver version of -triple. This "worked" for me, where by "worked" I mean "generated some output but I don't know enough about SPIR to validate it".<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">% clang -x cl -fno-builtin -target spir -c -emit-llvm<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Jordan<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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