diff --git a/lib/Target/SparcV9/RegAlloc/PhyRegAlloc.cpp b/lib/Target/SparcV9/RegAlloc/PhyRegAlloc.cpp
index 02f18fc7389..bbbaee8822c 100644
--- a/lib/Target/SparcV9/RegAlloc/PhyRegAlloc.cpp
+++ b/lib/Target/SparcV9/RegAlloc/PhyRegAlloc.cpp
@@ -204,8 +204,9 @@ void PhyRegAlloc::setCallInterferences(const MachineInstr *MInst,
   // That has a call interference because it conflicts with outgoing args.
   if (const Value *AddrVal = argDesc->getIndirectFuncPtr()) {
     LiveRange *AddrValLR = LRI->getLiveRangeForValue( AddrVal );
-    assert( AddrValLR && "No LR for indirect addr val of call");
-    AddrValLR->setCallInterference();
+    // LR can be null if the function pointer is a constant.
+    if (AddrValLR) 
+      AddrValLR->setCallInterference();
   }
 }