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Add a note about implementing interprocedural register allocation.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14569 91177308-0d34-0410-b5e6-96231b3b80d8
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Reid Spencer 2004-07-02 06:27:12 +00:00
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@ -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>