[SystemZ] Make operator bool explicit. NFC.

[oota-llvm.git] / lib / Target / SystemZ / SystemZElimCompare.cpp

diff --git a/lib/Target/SystemZ/SystemZElimCompare.cpp b/lib/Target/SystemZ/SystemZElimCompare.cpp
index 1ea02984f3d10e03c06caae12ad979c1817dcc75..ce99ee5bc41270fbabaeaf04a40f186b7f41c333 100644 (file)
--- a/lib/Target/SystemZ/SystemZElimCompare.cpp
+++ b/lib/Target/SystemZ/SystemZElimCompare.cpp
@@ -47,7 +47,7 @@ struct Reference {
     return *this;
   }
 
-  operator bool() const { return Def || Use; }
+  LLVM_EXPLICIT operator bool() const { return Def || Use; }
 
   // True if the register is defined or used in some form, either directly or
   // via a sub- or super-register.