[PATCH] D17257: New utility class ReachingPhysDefs for post-ra analysis.

[Daniel Berlin via llvm-commits]

dberlin added a subscriber: dberlin.

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Comment at: lib/CodeGen/ReachingPhysDefs.cpp:301
@@ +300,3 @@
+void ReachingPhysDefs::reachingDefAlgorithm() {
+  bool HasChanged;
+  do {
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You should iterate this in the right order to converge faster.

Look at LiveDebugValues.cpp::ExtendRanges

You should be able to copy and reuse the relevant worklist code there.



http://reviews.llvm.org/D17257