[llvm-commits] [llvm] r90572 - /llvm/trunk/lib/VMCore/AsmWriter.cpp

[Victor Hernandez]

Author: hernande
Date: Fri Dec  4 12:29:23 2009
New Revision: 90572

URL: http://llvm.org/viewvc/llvm-project?rev=90572&view=rev
Log:
Fix crasher when N->getElement(n) is NULL

Modified:
    llvm/trunk/lib/VMCore/AsmWriter.cpp

Modified: llvm/trunk/lib/VMCore/AsmWriter.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/VMCore/AsmWriter.cpp?rev=90572&r1=90571&r2=90572&view=diff

==============================================================================
--- llvm/trunk/lib/VMCore/AsmWriter.cpp (original)
+++ llvm/trunk/lib/VMCore/AsmWriter.cpp Fri Dec  4 12:29:23 2009
@@ -698,7 +698,7 @@
         if (MDNode *N = dyn_cast_or_null<MDNode>(I->getOperand(i))) {
           // Create a metadata slot only if N contains no instructions.
           for (unsigned n = 0, e = N->getNumElements(); n != e; ++n)
-            if (isa<Instruction>(N->getElement(n)))
+            if (N->getElement(n) && isa<Instruction>(N->getElement(n)))
               continue;
           CreateMetadataSlot(N);
         }