Subzero: Fix address mode optimization involving phi temporaries.

src/IceDefs.h

Index: src/IceDefs.h
diff --git a/src/IceDefs.h b/src/IceDefs.h
index cf9052cdfec40d8d53aab3b09220da5d63bf5fe9..d156a6066fb2b22aedbd493e18f71a71b2da8cca 100644
--- a/src/IceDefs.h
+++ b/src/IceDefs.h
@@ -101,6 +101,7 @@ enum VerboseItem {
   IceV_LinearScan = 1 << 8,
   IceV_Frame = 1 << 9,
   IceV_Timing = 1 << 10,
+  IceV_AddrOpt = 1 << 11,
   IceV_All = ~IceV_None
 };
 typedef uint32_t VerboseMask;