Subzero: Fix the g++ build (e.g. Windows).

src/IceOperand.cpp

Index: src/IceOperand.cpp
diff --git a/src/IceOperand.cpp b/src/IceOperand.cpp
index d7ea10b6b6150c88a8f42ec87cead7676dc8a299..fc2a7caa0b91000c7798428c2365deec4657afe3 100644
--- a/src/IceOperand.cpp
+++ b/src/IceOperand.cpp
@@ -253,6 +253,7 @@ const Inst *VariableTracking::getFirstDefinition() const {
     assert(FirstOrSingleDefinition);
     return FirstOrSingleDefinition;
   }

[Karl, 2014/12/04 21:58:15]

nullptr?

[Jim Stichnoth, 2014/12/04 22:09:15]

I actually meant to keep it NULL to be consistent with the rest of the file.  I
was meaning to do a nullptr pass over the entire code base at some point.

+  return NULL;
 }
 
 const Inst *VariableTracking::getSingleDefinition() const {
@@ -265,6 +266,7 @@ const Inst *VariableTracking::getSingleDefinition() const {
     assert(FirstOrSingleDefinition);
     return FirstOrSingleDefinition;
   }
+  return NULL;

[Karl, 2014/12/04 21:58:15]

nullptr?

 }
 
 void VariablesMetadata::init(MetadataKind TrackingKind) {