1 files changed, 5 insertions, 0 deletions
diff --git a/lib/CodeGen/RegAllocBase.h b/lib/CodeGen/RegAllocBase.h
index f4ca972738..fa595fed8b 100644
--- a/lib/CodeGen/RegAllocBase.h
+++ b/lib/CodeGen/RegAllocBase.h
@@ -128,6 +128,11 @@ protected:
   // exists, return the interfering register, which may be preg or an alias.
   unsigned checkPhysRegInterference(LiveInterval& lvr, unsigned preg);
 
+#ifndef NDEBUG
+  // Verify each LiveIntervalUnion.
+  void verify();
+#endif
+  
   // Helper that spills all live virtual registers currently unified under preg
   // that interfere with the most recently queried lvr.
   void spillInterferences(unsigned preg,