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* Add a link to the pattern-matching codegen docs

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* Tersify wording


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22099 91177308-0d34-0410-b5e6-96231b3b80d8
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Misha Brukman
2005-05-17 02:33:03 +00:00
parent 4937c9db28
commit d985a1ca69
1 changed files with 9 additions and 7 deletions
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docs/WritingAnLLVMBackend.html
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@@ -110,13 +110,15 @@ step can be almost automated.</li>
</ul> </ul>
<p>You also need to write an instruction selector for your platform. The <p>You also need to write an instruction selector for your platform. The
recommended method is the pattern-matching instruction selector. You can see recommended method is the <a
examples in other targets: <tt>lib/Target/*/*ISelPattern.cpp</tt>. The former href="CodeGenerator.html#instselect">pattern-matching instruction selector</a>,
method for writing instruction selectors (<b>not</b> recommended) is examples of which you can see in other targets:
encapsulated in <tt>lib/Target/*/*ISelSimple.cpp</tt>, which are <tt>lib/Target/*/*ISelPattern.cpp</tt>. The former method for writing
<tt>InstVisitor</tt>-based translators, generating code for an LLVM instruction instruction selectors (<b>not</b> recommended for new targets) is evident in
at a time. Creating an instruction selector is perhaps the most time-consuming <tt>lib/Target/*/*ISelSimple.cpp</tt>, which are <tt>InstVisitor</tt>-based
part of creating a back-end.</p> translators, generating code for an LLVM instruction at a time. Creating an
instruction selector is perhaps the most time-consuming part of creating a
back-end.</p>
<p>To create a JIT for your platform:</p> <p>To create a JIT for your platform:</p>