message: [libomptarget-nvptx] reduction: Determine if runtime uninitialized
  Pass in the correct value of isRuntimeUninitialized() which solves
  parallel reductions as reported on the mailing list.
  For reference: r333285 did the same for loop scheduling.
diff: @@ -148,7 +148,7 @@ int32_t nvptx_parallel_reduce_nowait(int32_t global_tid, int32_t num_vars,
  kmp_ShuffleReductFctPtr shflFct,
  kmp_InterWarpCopyFctPtr cpyFct,
  bool isSPMDExecutionMode,
  - bool isRuntimeUninitialized = false) {
  + bool isRuntimeUninitialized) {
  uint32_t BlockThreadId = GetLogicalThreadIdInBlock();
  uint32_t NumThreads = GetNumberOfOmpThreads(
  BlockThreadId, isSPMDExecutionMode, isRuntimeUninitialized);
  @@ -240,9 +240,10 @@ EXTERN
  int32_t __kmpc_nvptx_parallel_reduce_nowait(
  int32_t global_tid, int32_t num_vars, size_t reduce_size, void *reduce_data,
  kmp_ShuffleReductFctPtr shflFct, kmp_InterWarpCopyFctPtr cpyFct) {
  - return nvptx_parallel_reduce_nowait(global_tid, num_vars, reduce_size,
  - reduce_data, shflFct, cpyFct,
  - /*isSPMDExecutionMode=*/isSPMDMode());
  + return nvptx_parallel_reduce_nowait(
  + global_tid, num_vars, reduce_size, reduce_data, shflFct, cpyFct,
  + /*isSPMDExecutionMode=*/isSPMDMode(),
  + /*isRuntimeUninitialized=*/isRuntimeUninitialized());
  }
  EXTERN
  @@ -270,7 +271,7 @@ int32_t nvptx_teams_reduce_nowait(
  int32_t global_tid, int32_t num_vars, size_t reduce_size, void *reduce_data,
  kmp_ShuffleReductFctPtr shflFct, kmp_InterWarpCopyFctPtr cpyFct,
  kmp_CopyToScratchpadFctPtr scratchFct, kmp_LoadReduceFctPtr ldFct,
  - bool isSPMDExecutionMode, bool isRuntimeUninitialized = false) {
  + bool isSPMDExecutionMode, bool isRuntimeUninitialized) {
  uint32_t ThreadId = GetLogicalThreadIdInBlock();
  // In non-generic mode all workers participate in the teams reduction.
  // In generic mode only the team master participates in the teams
  @@ -399,9 +400,10 @@ int32_t __kmpc_nvptx_teams_reduce_nowait(int32_t global_tid, int32_t num_vars,
  kmp_InterWarpCopyFctPtr cpyFct,
  kmp_CopyToScratchpadFctPtr scratchFct,
  kmp_LoadReduceFctPtr ldFct) {
  - return nvptx_teams_reduce_nowait(global_tid, num_vars, reduce_size,
  - reduce_data, shflFct, cpyFct, scratchFct,
  - ldFct, /*isSPMDExecutionMode=*/isSPMDMode());
  + return nvptx_teams_reduce_nowait(
  + global_tid, num_vars, reduce_size, reduce_data, shflFct, cpyFct,
  + scratchFct, ldFct, /*isSPMDExecutionMode=*/isSPMDMode(),
  + /*isRuntimeUninitialized=*/isRuntimeUninitialized());
  }
  EXTERN
  