From 0db582d142e6c2243add577264558dddce35720a Mon Sep 17 00:00:00 2001
From: Yi Sun <yi.sun@intel.com>
Date: Mon, 29 Jul 2013 23:19:53 +0800
Subject: [PATCH] utest: Add test for built-in function get_local_id.

Signed-off-by: Yi Sun <yi.sun@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>
---
 kernels/builtin_local_id.cl |  6 ++++
 utests/CMakeLists.txt       |  1 +
 utests/builtin_local_id.cpp | 81 +++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 88 insertions(+)
 create mode 100644 kernels/builtin_local_id.cl
 create mode 100644 utests/builtin_local_id.cpp

diff --git a/kernels/builtin_local_id.cl b/kernels/builtin_local_id.cl
new file mode 100644
index 0000000..489833d
--- /dev/null
+++ b/kernels/builtin_local_id.cl
@@ -0,0 +1,6 @@
+kernel void builtin_local_id( __global int *ret) {
+  int id = get_local_id(0) +  get_group_id(0) * 2 + \
+           get_local_id(1) * 4 + get_group_id(1) * 12 +\
+           get_local_id(2) * 36 + get_group_id(2) * 144;
+  ret[id] = id;
+}
diff --git a/utests/CMakeLists.txt b/utests/CMakeLists.txt
index 9e64206..bdc46d6 100644
--- a/utests/CMakeLists.txt
+++ b/utests/CMakeLists.txt
@@ -112,6 +112,7 @@ set (utests_sources
   builtin_global_size.cpp
   builtin_local_size.cpp
   builtin_global_id.cpp
+  builtin_local_id.cpp
   runtime_createcontext.cpp
   runtime_null_kernel_arg.cpp
   compiler_double.cpp
diff --git a/utests/builtin_local_id.cpp b/utests/builtin_local_id.cpp
new file mode 100644
index 0000000..1f07615
--- /dev/null
+++ b/utests/builtin_local_id.cpp
@@ -0,0 +1,81 @@
+/*
+According to the OpenCL v1.1 & v1.2 chapter 6.11.
+Now define local and global size as following:
+  globals[0] = 4;
+  globals[1] = 9;
+  globals[2] = 16;
+  locals[0] = 2;
+  locals[1] = 3;
+  locals[2] = 4;
+
+Kernel:
+int id = get_local_id(0) +  get_group_id(0)*2 + \
+         get_local_id(1) * 4 + get_group_id(1)*12 +\
+         get_local_id(2) *36 + get_group_id(2)*144;
+
+dimension:1
+ 0  1  2  3
+dimension:2
+ 0  1  2  3  4  5  6  7  8  9 10 11
+12 13 14 15 16 17 18 19 20 21 22 23
+24 25 26 27 28 29 30 31 32 33 34 35
+dimension:3
+ 0  1  2  3  4  5  6  7 ... 139 140 141 142 143
+...
+...
+429 430 431 432 433 434 ... 571 572 573 574 575
+*/
+
+#define udebug 0
+#include "utest_helper.hpp"
+static void builtin_local_id(void)
+{
+
+  // Setup kernel and buffers
+  int dim, local_id[576], err, i, buf_len=1;
+  OCL_CREATE_KERNEL("builtin_local_id");
+
+  OCL_CREATE_BUFFER(buf[0], CL_MEM_READ_WRITE, sizeof(int)*576, NULL);
+  OCL_SET_ARG(0, sizeof(cl_mem), &buf[0]);
+
+  for( dim=1; dim <= 3; dim++ )
+  {
+    buf_len = 1;
+    for(i=1; i <= dim; i++)
+    {
+      locals[i - 1] = i + 1;
+      globals[i - 1] = (i + 1) * (i + 1);
+      buf_len *= ((i + 1) * (i + 1));
+    }
+    for(i = dim+1; i <= 3; i++)
+    {
+      globals[i - 1] = 0;
+      locals[i - 1] = 0;
+    }
+
+    // Run the kernel
+    OCL_NDRANGE( dim );
+    clFinish(queue);
+
+    err = clEnqueueReadBuffer( queue, buf[0], CL_TRUE, 0, sizeof(int) * buf_len, &local_id, 0, NULL, NULL);
+
+    if (err != CL_SUCCESS)
+    {
+      printf("Error: Failed to read output array! %d\n", err);
+      exit(1);
+    }
+
+#if udebug
+    for(i = 0; i < buf_len; i++)
+    {
+      printf("%2d ", local_id[i]);
+      if ((i + 1) % 4  == 0) printf("\n");
+    }
+#endif
+
+    for( i = 0; i < buf_len; i++)
+      OCL_ASSERT( local_id[i] == i);
+  }
+}
+
+MAKE_UTEST_FROM_FUNCTION(builtin_local_id);
-- 
2.7.4