wangtao
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Add a note about registering the backend so it's available in LLC and LLI 

llvm-svn: 19168
This commit is contained in:
Misha Brukman 2004-12-27 19:05:16 +00:00
parent bb3d4a1b64
commit c57b9eb581
1 changed files with 12 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
llvm/docs/WritingAnLLVMBackend.html
View File

@ -91,6 +91,18 @@ implement the following:</p>
href="CodeGenerator.html#targetmachine">TargetMachine</a></tt>, which href="CodeGenerator.html#targetmachine">TargetMachine</a></tt>, which
configures <tt><a href="CodeGenerator.html#targetdata">TargetData</a></tt> configures <tt><a href="CodeGenerator.html#targetdata">TargetData</a></tt>
correctly</li> correctly</li>
<li>Register your new target using the <tt>RegisterTarget</tt>
template:<br><br>
<div class="doc_code"><pre>
RegisterTarget&lt;<em>MyTargetMachine</em>&gt; M("short_name", " Target name");
</pre></div>
<br>Here, <em>MyTargetMachine</em> is the name of your implemented
subclass of <tt><a
href="CodeGenerator.html#targetmachine">TargetMachine</a></tt>,
<em>short_name</em> is the option that will be active following
<tt>-march=</tt> to select a target in llc and lli, and the last string
is the description of your target to appear in <tt>-help</tt>
listing.</li>
</ul></li> </ul></li>
<li>Implement the assembly printer for the architecture. Usually, if you have <li>Implement the assembly printer for the architecture. Usually, if you have
described the instruction set with the assembly printer generator in mind, that described the instruction set with the assembly printer generator in mind, that