Index: llvm/trunk/lib/Target/NVPTX/NVPTXIntrinsics.td
===================================================================
--- llvm/trunk/lib/Target/NVPTX/NVPTXIntrinsics.td
+++ llvm/trunk/lib/Target/NVPTX/NVPTXIntrinsics.td
@@ -32,6 +32,7 @@
 //-----------------------------------
 // Synchronization Functions
 //-----------------------------------
+let isConvergent = 1 in {
 def INT_CUDA_SYNCTHREADS : NVPTXInst<(outs), (ins),
                   "bar.sync \t0;",
       [(int_cuda_syncthreads)]>;
@@ -63,6 +64,7 @@
       !strconcat("selp.u32 \t$dst, 1, 0, %p2; \n\t",
         !strconcat("}}", ""))))))),
       [(set Int32Regs:$dst, (int_nvvm_barrier0_or Int32Regs:$pred))]>;
+} // isConvergent = 1
 
 
 //-----------------------------------