[llvm] r228854 - Allow DIBuilder::replaceVTableHolder() to work with temporary nodes,

[Adrian Prantl]

Author: adrian
Date: Wed Feb 11 11:45:10 2015
New Revision: 228854

URL: http://llvm.org/viewvc/llvm-project?rev=228854&view=rev
Log:
Allow DIBuilder::replaceVTableHolder() to work with temporary nodes,
tested via the clang test CodeGenCXX/vtable-holder-self-reference.cpp .

Modified:
    llvm/trunk/lib/IR/DIBuilder.cpp

Modified: llvm/trunk/lib/IR/DIBuilder.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/IR/DIBuilder.cpp?rev=228854&r1=228853&r2=228854&view=diff
==============================================================================
--- llvm/trunk/lib/IR/DIBuilder.cpp (original)
+++ llvm/trunk/lib/IR/DIBuilder.cpp Wed Feb 11 11:45:10 2015
@@ -1229,12 +1229,12 @@ void DIBuilder::replaceVTableHolder(DICo
   if (T != VTableHolder)
     return;
 
-  // Look for unresolved operands.  T has dropped RAUW support and is already
-  // marked resolved, orphaning any cycles underneath it.
-  assert(T->isResolved() && "Expected self-reference to be resolved");
-  for (const MDOperand &O : T->operands())
-    if (auto *N = dyn_cast_or_null<MDNode>(O))
-      trackIfUnresolved(N);
+  // Look for unresolved operands.  T will drop RAUW support, orphaning any
+  // cycles underneath it.
+  if (T->isResolved())
+    for (const MDOperand &O : T->operands())
+      if (auto *N = dyn_cast_or_null<MDNode>(O))
+        trackIfUnresolved(N);
 }
 
 void DIBuilder::replaceArrays(DICompositeType &T, DIArray Elements,