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</o:shapelayout></xml><![endif]--></head><body lang=ZH-CN link="#0563C1" vlink="#954F72" style='text-justify-trim:punctuation'><div class=WordSection1><p class=MsoNormal><span lang=EN-US style='font-size:14.0pt;font-family:"Meiryo",sans-serif'>I intend to write a new LLVM Backend for my new instruction set,but I notice that the example in the document “Writing an LLVM Backend” is not suitable for up-to-date version”7.0.1”.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:14.0pt;font-family:"Meiryo",sans-serif'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:14.0pt;font-family:"Meiryo",sans-serif'>That document is in “docs” directory of LLVM source of up-to-date version and LLVM Website.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:14.0pt;font-family:"Meiryo",sans-serif'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:14.0pt;font-family:"Meiryo",sans-serif'>For example,in section “<b>Target Machine</b>”,in “<b>SparcTargetMachine.h</b>”,there is “<b>DataLayout</b>”,”<b>InstrInfo</b>” as class members in class “<b>SparcTargetMachine</b>” but is not in “<b>SparcTargetMachine.h</b>” which is in “LLVM <b>version 7.0.1</b>”,and the argument list of the constructor is also different.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:14.0pt;font-family:"Meiryo",sans-serif'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:14.0pt;font-family:"Meiryo",sans-serif'>I don’t know how to write a new LLVM Backend for me.<b>Do you have new documents suitable for up-to-date version?</b>or,<b>do you know what version of LLVM is for that documents?<o:p></o:p></b></span></p></div></body></html>