Index: openmp/trunk/libomptarget/deviceRTLs/nvptx/src/interface.h
===================================================================
--- openmp/trunk/libomptarget/deviceRTLs/nvptx/src/interface.h
+++ openmp/trunk/libomptarget/deviceRTLs/nvptx/src/interface.h
@@ -516,4 +516,7 @@
 EXTERN void *
 __kmpc_get_data_sharing_environment_frame(int32_t SourceThreadID,
                                           int16_t IsOMPRuntimeInitialized);
+
+// SPMD execution mode interrogation function.
+EXTERN int8_t __kmpc_is_spmd_exec_mode();
 #endif
Index: openmp/trunk/libomptarget/deviceRTLs/nvptx/src/omptarget-nvptx.cu
===================================================================
--- openmp/trunk/libomptarget/deviceRTLs/nvptx/src/omptarget-nvptx.cu
+++ openmp/trunk/libomptarget/deviceRTLs/nvptx/src/omptarget-nvptx.cu
@@ -187,3 +187,8 @@
         omptarget_nvptx_threadPrivateContext);
   }
 }
+
+// Return true if the current target region is executed in SPMD mode.
+EXTERN int8_t __kmpc_is_spmd_exec_mode() {
+  return isSPMDMode();
+}