[pstl] Fix compilation with TBB backend

Some types were not using the right namespace qualification.

llvm-svn: 366208

Author: ldionne

pstl/include/pstl/internal/parallel_backend_tbb.h

@@ -191,7 +191,7 @@ _Tp
 __parallel_transform_reduce(_ExecutionPolicy&&, _Index __first, _Index __last, _Up __u, _Tp __init, _Cp __combine,
                             _Rp __brick_reduce)
 {
-    __par_backend::__par_trans_red_body<_Index, _Up, _Tp, _Cp, _Rp> __body(__u, __init, __combine, __brick_reduce);
+    __tbb_backend::__par_trans_red_body<_Index, _Up, _Tp, _Cp, _Rp> __body(__u, __init, __combine, __brick_reduce);
     // The grain size of 3 is used in order to provide mininum 2 elements for each body
     tbb::this_task_arena::isolate(
         [__first, __last, &__body]() { tbb::parallel_reduce(tbb::blocked_range<_Index>(__first, __last, 3), __body); });
@@ -305,9 +305,9 @@ __upsweep(_Index __i, _Index __m, _Index __tilesize, _Tp* __r, _Index __lastsize
     {
         _Index __k = __split(__m);
         tbb::parallel_invoke(
-            [=] { __par_backend::__upsweep(__i, __k, __tilesize, __r, __tilesize, __reduce, __combine); },
+            [=] { __tbb_backend::__upsweep(__i, __k, __tilesize, __r, __tilesize, __reduce, __combine); },
             [=] {
-                __par_backend::__upsweep(__i + __k, __m - __k, __tilesize, __r + __k, __lastsize, __reduce, __combine);
+                __tbb_backend::__upsweep(__i + __k, __m - __k, __tilesize, __r + __k, __lastsize, __reduce, __combine);
             });
         if (__m == 2 * __k)
             __r[__m - 1] = __combine(__r[__k - 1], __r[__m - 1]);
@@ -325,11 +325,11 @@ __downsweep(_Index __i, _Index __m, _Index __tilesize, _Tp* __r, _Index __lastsi
     {
         const _Index __k = __split(__m);
         tbb::parallel_invoke(
-            [=] { __par_backend::__downsweep(__i, __k, __tilesize, __r, __tilesize, __initial, __combine, __scan); },
+            [=] { __tbb_backend::__downsweep(__i, __k, __tilesize, __r, __tilesize, __initial, __combine, __scan); },
             // Assumes that __combine never throws.
             //TODO: Consider adding a requirement for user functors to be constant.
             [=, &__combine] {
-                __par_backend::__downsweep(__i + __k, __m - __k, __tilesize, __r + __k, __lastsize,
+                __tbb_backend::__downsweep(__i + __k, __m - __k, __tilesize, __r + __k, __lastsize,
                                            __combine(__initial, __r[__k - 1]), __combine, __scan);
             });
     }
@@ -363,7 +363,7 @@ __parallel_strict_scan(_ExecutionPolicy&&, _Index __n, _Tp __initial, _Rp __redu
             _Index __m = (__n - 1) / __tilesize;
             __buffer<_Tp> __buf(__m + 1);
             _Tp* __r = __buf.get();
-            __par_backend::__upsweep(_Index(0), _Index(__m + 1), __tilesize, __r, __n - __m * __tilesize, __reduce,
+            __tbb_backend::__upsweep(_Index(0), _Index(__m + 1), __tilesize, __r, __n - __m * __tilesize, __reduce,
                                      __combine);
 
             // When __apex is a no-op and __combine has no side effects, a good optimizer
@@ -375,7 +375,7 @@ __parallel_strict_scan(_ExecutionPolicy&&, _Index __n, _Tp __initial, _Rp __redu
             while ((__k &= __k - 1))
                 __t = __combine(__r[__k - 1], __t);
             __apex(__combine(__initial, __t));
-            __par_backend::__downsweep(_Index(0), _Index(__m + 1), __tilesize, __r, __n - __m * __tilesize, __initial,
+            __tbb_backend::__downsweep(_Index(0), _Index(__m + 1), __tilesize, __r, __n - __m * __tilesize, __initial,
                                        __combine, __scan);
             return;
         }
@@ -874,7 +874,7 @@ template <typename _RandomAccessIterator1, typename _RandomAccessIterator2, type
 tbb::task*
 __stable_sort_task<_RandomAccessIterator1, _RandomAccessIterator2, _Compare, _LeafSort>::execute()
 {
-    typedef __merge_task<_RandomAccessIterator1, _RandomAccessIterator2, _Compare, __serial_destroy,
+    typedef __merge_task<_RandomAccessIterator1, _RandomAccessIterator2, _Compare, __utils::__serial_destroy,
                          __utils::__serial_move_merge>
         _MergeTaskType;