Initial support for the CMake build system.

[oota-llvm.git] / docs / CodeGenerator.html

diff --git a/docs/CodeGenerator.html b/docs/CodeGenerator.html
index 06c6e9ae04652bafba3262c3ae7454095ed948c1..ad0a5b558826419dd75ee5bec89a89b077175718 100644 (file)
--- a/docs/CodeGenerator.html
+++ b/docs/CodeGenerator.html
@@ -787,7 +787,7 @@ define multiple values.  For example, a combined div/rem operation will define
 both the dividend and the remainder. Many other situations require multiple
 values as well.  Each node also has some number of operands, which are edges 
 to the node defining the used value.  Because nodes may define multiple values,
-edges are represented by instances of the <tt>SDOperand</tt> class, which is 
+edges are represented by instances of the <tt>SDValue</tt> class, which is 
 a <tt>&lt;SDNode, unsigned&gt;</tt> pair, indicating the node and result
 value being used, respectively.  Each value produced by an <tt>SDNode</tt> has
 an associated <tt>MVT</tt> (Machine Value Type) indicating what the type of the
@@ -857,16 +857,27 @@ an illegal DAG into a legal DAG.</p>
 rest of the code generation passes are run.</p>
 
 <p>One great way to visualize what is going on here is to take advantage of a 
-few LLC command line options.  In particular, the <tt>-view-isel-dags</tt>
-option pops up a window with the SelectionDAG input to the Select phase for all
-of the code compiled (if you only get errors printed to the console while using
-this, you probably <a href="ProgrammersManual.html#ViewGraph">need to configure
-your system</a> to add support for it).  The <tt>-view-sched-dags</tt> option
-views the SelectionDAG output from the Select phase and input to the Scheduler
-phase.  The <tt>-view-sunit-dags</tt> option views the ScheduleDAG, which is
-based on the final SelectionDAG, with nodes that must be scheduled as a unit
-bundled together into a single node, and with immediate operands and other
-nodes that aren't relevent for scheduling omitted.
+few LLC command line options.  The following options pop up a window displaying
+the SelectionDAG at specific times (if you only get errors printed to the console
+while using this, you probably
+<a href="ProgrammersManual.html#ViewGraph">need to configure your system</a> to
+add support for it).</p>
+
+<ul>
+<li><tt>-view-dag-combine1-dags</tt> displays the DAG after being built, before
+    the first optimization pass.</li>
+<li><tt>-view-legalize-dags</tt> displays the DAG before Legalization.</li>
+<li><tt>-view-dag-combine2-dags</tt> displays the DAG before the second
+    optimization pass.</li>
+<li><tt>-view-isel-dags</tt> displays the DAG before the Select phase.</li>
+<li><tt>-view-sched-dags</tt> displays the DAG before Scheduling.</li>
+</ul>
+
+<p>The <tt>-view-sunit-dags</tt> displays the Scheduler's dependency graph.
+This graph is based on the final SelectionDAG, with nodes that must be
+scheduled together bundled into a single scheduling-unit node, and with
+immediate operands and other nodes that aren't relevent for scheduling
+omitted.
 </p>
 
 </div>