[Beignet] [PATCH 10/10 OpenCL-2.0] Add test case for work group reduce min.

[junyan.he at inbox.com]

From: Junyan He <junyan.he at linux.intel.com>

Signed-off-by: Junyan He <junyan.he at linux.intel.com>
---
 kernels/compiler_workgroup_reduce.cl |    5 ++++
 utests/CMakeLists.txt                |    1 +
 utests/compiler_workgroup_reduce.cpp |   44 ++++++++++++++++++++++++++++++++++
 3 files changed, 50 insertions(+)
 create mode 100644 kernels/compiler_workgroup_reduce.cl
 create mode 100644 utests/compiler_workgroup_reduce.cpp

diff --git a/kernels/compiler_workgroup_reduce.cl b/kernels/compiler_workgroup_reduce.cl
new file mode 100644
index 0000000..89d30f1
--- /dev/null
+++ b/kernels/compiler_workgroup_reduce.cl
@@ -0,0 +1,5 @@
+kernel void compiler_workgroup_reduce(global uint *src, global uint *dst) {
+    uint val = src[get_local_id(0)];
+    uint min_val = work_group_reduce_min(val);
+    dst[get_local_id(0)] = min_val;
+}
diff --git a/utests/CMakeLists.txt b/utests/CMakeLists.txt
index 93cbffa..559dafa 100644
--- a/utests/CMakeLists.txt
+++ b/utests/CMakeLists.txt
@@ -118,6 +118,7 @@ set (utests_sources
   compiler_atomic_functions.cpp
   compiler_async_copy.cpp
   compiler_workgroup_broadcast.cpp
+  compiler_workgroup_reduce.cpp
   compiler_async_stride_copy.cpp
   compiler_insn_selection_min.cpp
   compiler_insn_selection_max.cpp
diff --git a/utests/compiler_workgroup_reduce.cpp b/utests/compiler_workgroup_reduce.cpp
new file mode 100644
index 0000000..628b439
--- /dev/null
+++ b/utests/compiler_workgroup_reduce.cpp
@@ -0,0 +1,44 @@
+#include <cstdint>
+#include <cstring>
+#include <iostream>
+#include "utest_helper.hpp"
+
+static uint32_t test_array[64] = {23, 34, 12, 91, 5, 133, 7787, 134, 987, 9853, 33, 21, 865, 1441, 9083, 812,
+                                  12, 43435, 63, 44545, 253, 65, 24, 30, 76, 989, 120 ,113 ,12, 41, 18, 91,
+                                  8321, 6712, 881, 911, 5, 788, 8991, 88, 19, 1110, 1231, 1341, 1983, 1983, 91, 212,
+                                  712, 31, 881, 963, 6801, 651, 9810, 77, 98, 13, 16, 1888, 141, 1613, 1771, 16};
+
+void compiler_workgroup_reduce(void)
+{
+  const size_t n = 64;
+  uint32_t* src = test_array;
+
+  // Setup kernel and buffers
+  OCL_CREATE_KERNEL("compiler_workgroup_reduce");
+  OCL_CREATE_BUFFER(buf[0], 0, n * sizeof(uint32_t), NULL);
+  OCL_CREATE_BUFFER(buf[1], 0, n * sizeof(uint32_t), NULL);
+  OCL_SET_ARG(0, sizeof(cl_mem), &buf[0]);
+  OCL_SET_ARG(1, sizeof(cl_mem), &buf[1]);
+  globals[0] = n;
+  locals[0] = n;
+
+//  for (int32_t i = 0; i < (int32_t) n; ++i) {
+//    src[i] = n - i;
+//  }
+  OCL_MAP_BUFFER(0);
+  memcpy(buf_data[0], src, n * sizeof(uint32_t));
+  OCL_UNMAP_BUFFER(0);
+
+  // Run the kernel on GPU
+  OCL_NDRANGE(1);
+
+  // Compare
+  OCL_MAP_BUFFER(1);
+  for (int32_t i = 0; i < (int32_t) n; ++i) {
+    //printf("%u ", ((uint32_t *)buf_data[1])[i]);
+    OCL_ASSERT(((uint32_t *)buf_data[1])[i] == 5);
+  }
+  OCL_UNMAP_BUFFER(1);
+}
+
+MAKE_UTEST_FROM_FUNCTION(compiler_workgroup_reduce);
-- 
1.7.9.5