diff --git a/llvm/lib/CodeGen/InstrSched/SchedGraph.cpp b/llvm/lib/CodeGen/InstrSched/SchedGraph.cpp
index 2656cd2..4060130 100644
--- a/llvm/lib/CodeGen/InstrSched/SchedGraph.cpp
+++ b/llvm/lib/CodeGen/InstrSched/SchedGraph.cpp
@@ -535,7 +535,7 @@
   if (!val->isInstruction()) return;
   
   const Instruction* thisVMInstr = node->getInstr();
-  const Instruction* defVMInstr  = val->castInstructionAsserting();
+  const Instruction* defVMInstr  = cast<const Instruction>(val);
   
   // Phi instructions are the only ones that produce a value but don't get
   // any non-dummy machine instructions.  Return here as an optimization.