rsmith accepted this revision.
================
Comment at: include/clang/Basic/DiagnosticSemaKinds.td:5369
@@ -5368,1 +5368,3 @@
+def warn_binding_null_to_reference : Warning<
+ "binding null pointer to reference has undefined behavior">,
InGroup<NullDereference>;
def note_indirection_through_null : Note<
----------------
Maybe "binding dereferenced null pointer [...]"?
================
Comment at: lib/Sema/SemaInit.cpp:6203
@@ +6202,3 @@
+ UO->getSubExpr()->IgnoreParenCasts()->
+ isNullPointerConstant(S.Context, Expr::NPC_ValueDependentIsNotNull)) {
+ S.DiagRuntimeBehavior(UO->getOperatorLoc(), UO,
----------------
Something fishy in the indentation here?
http://reviews.llvm.org/D19851
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