X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FIR%2FValue.cpp;h=2c90383edd8c2ecff8e015ac161529f94f216758;hb=ce30a8106d7d33af9c18518c11e808eaeebc2cce;hp=35808a658b411d45b0cbca1b6c290f0702173abe;hpb=59d3ae6cdc4316ad338cd848251f33a236ccb36c;p=oota-llvm.git

diff --git a/lib/IR/Value.cpp b/lib/IR/Value.cpp
index 35808a658b4..2c90383edd8 100644
--- a/lib/IR/Value.cpp
+++ b/lib/IR/Value.cpp
@@ -182,6 +182,8 @@ void Value::setName(const Twine &NewName) {
 
   SmallString<256> NameData;
   StringRef NameRef = NewName.toStringRef(NameData);
+  assert(NameRef.find_first_of(0) == StringRef::npos &&
+         "Null bytes are not allowed in names");
 
   // Name isn't changing?
   if (getName() == NameRef)
@@ -735,9 +737,5 @@ void ValueHandleBase::ValueIsRAUWd(Value *Old, Value *New) {
 #endif
 }
 
-// Default implementation for CallbackVH.
-void CallbackVH::allUsesReplacedWith(Value *) {}
-
-void CallbackVH::deleted() {
-  setValPtr(NULL);
-}
+// Pin the vtable to this file.
+void CallbackVH::anchor() {}