Index: llvm/trunk/lib/Target/NVPTX/NVPTXTargetTransformInfo.h
===================================================================
--- llvm/trunk/lib/Target/NVPTX/NVPTXTargetTransformInfo.h
+++ llvm/trunk/lib/Target/NVPTX/NVPTXTargetTransformInfo.h
@@ -52,6 +52,10 @@
 
   bool isSourceOfDivergence(const Value *V);
 
+  // Increase the inlining cost threshold by a factor of 5, reflecting that
+  // calls are particularly expensive in NVPTX.
+  unsigned getInliningThresholdMultiplier() { return 5; }
+
   int getArithmeticInstrCost(
       unsigned Opcode, Type *Ty,
       TTI::OperandValueKind Opd1Info = TTI::OK_AnyValue,