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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">>
</span>I need to see how they look, whether it is ARM, Mips or X86.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The Mips triples you're most likely to need are:<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l1 level1 lfo2"><![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]>mips-linux-gnu – 32-bit big-endian on GNU/Linux<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l1 level1 lfo2"><![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]>mipsel-linux-gnu – 32-bit little-endian on GNU/Linux<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l1 level1 lfo2"><![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]>mips64-linux-gnu – 64-bit big-endian on GNU/Linux<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l1 level1 lfo2"><![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]>mips64el-linux-gnu – 64-bit little-endian on GNU/Linux<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I should mention that Mips has quite a few triple-related bugs but if you're just looking at assembly the one you're most likely to encounter is that mips-*/mipsel-* only work for 32-bit subtargets and mips64-*/mips64el-* only work for
64-bit subtargets. If you don't match them up correctly then you'll either get an assertion from the code generator or a crash. This isn't supposed to be the case but there's been some unfortunate misunderstandings about GNU triples and Clang triples (they're
not quite the same thing) that are difficult to resolve.<o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif""><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> llvm-dev [mailto:llvm-dev-bounces@lists.llvm.org]
<b>On Behalf Of </b>Rail Shafigulin via llvm-dev<br>
<b>Sent:</b> 12 March 2016 19:52<br>
<b>To:</b> Joerg Sonnenberger; llvm-dev<br>
<b>Subject:</b> Re: [llvm-dev] clang triple and clang target<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I assume with target you mean the backend? Consider the x86 backend. It<br>
supports 32bit and 64bit mode, with the GNU x32 ABI in between. There<br>
are three different executable formats support (ELF, PE, MachO) with<br>
different constraints. Some platforms require 32bit alignment of the<br>
stack, others require 128bit alignment. The list goes on. The triple specifies<br>
the combination of target, OS and potentially file format and sub-ABI.<br>
<br>
Joerg<br>
_______________________________________________<br>
LLVM Developers mailing list<br>
<a href="mailto:llvm-dev@lists.llvm.org">llvm-dev@lists.llvm.org</a><br>
<a href="http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev" target="_blank">http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev</a><o:p></o:p></p>
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<p class="MsoNormal"><br>
Thanks for the response. I was trying to generate assembly which would use vector instructions. I need to see how they look, whether it is ARM, Mips or X86. However for some reason clang would generate an error saying that a given target does not exist. Here
is the command line I used:<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 -S test.c -o test.sse2.x86-64.s --target=x86-unknown-linux-eabi -mfloat-abi=hard -mcpu=x86-64 -mfpu=SSE2 -fslp-vectorize-aggressive -fslp-vectorize-aggressive -fslp-vectorize -fvectorize -fno-lax-vector-conversions<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Here is the response I got:<o:p></o:p></p>
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<p class="MsoNormal">clang: warning: argument unused during compilation: '-mfloat-abi=hard'<o:p></o:p></p>
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<p class="MsoNormal">clang: warning: argument unused during compilation: '-mcpu=x86-64'<o:p></o:p></p>
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<p class="MsoNormal">clang: warning: argument unused during compilation: '-mfpu=SSE2'<o:p></o:p></p>
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<p class="MsoNormal">error: unknown target triple 'x86-unknown-linux-eabi', please use -triple or -arch<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I tried every possible combination of --target I could think of but nothing worked. Would you mind helping me out? <o:p></o:p></p>
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<p class="MsoNormal">Any help is appreciated.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">-- <o:p></o:p></p>
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<p class="MsoNormal">Rail Shafigulin<o:p></o:p></p>
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<p class="MsoNormal">Software Engineer <br>
Esencia Technologies<o:p></o:p></p>
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