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Document the -view-sunit-dags option.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43015 91177308-0d34-0410-b5e6-96231b3b80d8
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Dan Gohman 2007-10-15 21:07:59 +00:00
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@ -862,7 +862,11 @@ 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.</p>
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.
</p>
</div>