Subzero: Fold icmp into br/select lowering.

src/IceDefs.h

Index: src/IceDefs.h
diff --git a/src/IceDefs.h b/src/IceDefs.h
index 1ee3d23860e56d700bbbe37b86e9aec9637e4a67..71a23f66072b39e03540c795dc54f7f4b243c51a 100644
--- a/src/IceDefs.h
+++ b/src/IceDefs.h
@@ -172,6 +172,7 @@ enum VerboseItem {
   IceV_Frame = 1 << 8,
   IceV_AddrOpt = 1 << 9,
   IceV_Random = 1 << 10,
+  IceV_Folding = 1 << 11,
   IceV_All = ~IceV_None,
   IceV_Most = IceV_All & ~IceV_LinearScan
 };