As requested, a blurb on sub-targets.

llvm-svn: 23769
2005-10-17 12:19:10 +00:00 · 2005-10-17 12:19:10 +00:00 · 87ce5d85bb
parent 721f3ce90f
commit 87ce5d85bb
1 changed files with 5 additions and 1 deletions
--- a/llvm/docs/CodeGenerator.html
+++ b/llvm/docs/CodeGenerator.html
@ -444,7 +444,11 @@ href="TableGenFundamentals.html">TableGen</a> description of the register file.

 <div class="doc_text">
  <p>
-  TODO
+  <p>The <tt>TargetSubtarget</tt> class is used to provide information about the
+  specific chip set being targeted.  A sub-target informs code generation of 
+  which instructions are supported, instruction latencies and instruction 
+  execution itinerary; i.e., which processing units are used, in what order, and
+  for how long.
  </p>
 </div>