Revert the series of commits starting with r166578 which introduced the

[oota-llvm.git] / lib / VMCore / Value.cpp

diff --git a/lib/VMCore/Value.cpp b/lib/VMCore/Value.cpp
index 4006b2c554188d57e70a81a082413cbbb10f86a8..8d0720dc1223d02cf068814adee6961c93bb2eea 100644 (file)
--- a/lib/VMCore/Value.cpp
+++ b/lib/VMCore/Value.cpp
@@ -394,7 +394,7 @@ static bool isDereferenceablePointer(const Value *V,
   // It's also not always safe to follow a bitcast, for example:
   //   bitcast i8* (alloca i8) to i32*
   // would result in a 4-byte load from a 1-byte alloca. Some cases could
-  // be handled using TargetData to check sizes and alignments though.
+  // be handled using DataLayout to check sizes and alignments though.
 
   // These are obviously ok.
   if (isa<AllocaInst>(V)) return true;
@@ -686,6 +686,9 @@ void ValueHandleBase::ValueIsRAUWd(Value *Old, Value *New) {
 #endif
 }
 
-/// ~CallbackVH. Empty, but defined here to avoid emitting the vtable
-/// more than once.
-CallbackVH::~CallbackVH() {}
+// Default implementation for CallbackVH.
+void CallbackVH::allUsesReplacedWith(Value *) {}
+
+void CallbackVH::deleted() {
+  setValPtr(NULL);
+}