1 files changed, 6 insertions, 2 deletions
diff --git a/lib/CodeGen/CGVtable.cpp b/lib/CodeGen/CGVtable.cpp
index 6fb70d83c2..8e9e0655e8 100644
--- a/lib/CodeGen/CGVtable.cpp
+++ b/lib/CodeGen/CGVtable.cpp
@@ -1315,8 +1315,12 @@ void VtableBuilder::ComputeThisAdjustments() {
       continue;
     
     uint64_t VtableIndex = MethodInfo.VtableIndex;
-    
-    // Ignore this adjustments for unused function pointers.
+
+    // Ignore adjustments for pure virtual member functions.
+    if (Overrider.Method->isPure())
+      continue;
+
+    // Ignore adjustments for unused function pointers.
     if (Components[VtableIndex].getKind() == 
         VtableComponent::CK_UnusedFunctionPointer)
       continue;