Add a note about implementing interprocedural register allocation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14569 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/docs/OpenProjects.html b/docs/OpenProjects.html
index ec29cbe4a9d823518e7484172c2f61a7582fb04c..ebf28abb728f0f5b174b300fd3218f9b7a33cbe7 100644 (file)
--- a/docs/OpenProjects.html
+++ b/docs/OpenProjects.html
@@ -303,6 +303,10 @@ profiling code to work with the generic profiling interfaces.</li>
 <li>Implement a better instruction selector</li>
 <li>Implement support for the "switch" instruction without requiring the 
     lower-switches pass.</li>
+<li>Implement interprocedural register allocation. The CallGraphSCCPass can be
+    used to implement a bottom-up analysis that will determine the *actual* 
+    registers clobbered by a function. Use the pass to fine tune register usage 
+    in callers based on *actual* registers used by the callee.</li>
 </ol>
 
 </div>