Add read buffer/image benchmark.

Add there two benchmark to compare the buffer and image performance

V2: init the coord before read image.
V3: Correct the image's width and buffer's read index.
Signed-off-by: Yang Rong <rong.r.yang@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

1 files changed, 15 insertions, 0 deletions

diff --git a/kernels/compiler_read_buffer.cl b/kernels/compiler_read_buffer.cl
new file mode 100644
index 00000000..4d3183a1
--- /dev/null
+++ b/kernels/compiler_read_buffer.cl
@@ -0,0 +1,15 @@
+#define COUNT 16
+
+__kernel void
+compiler_read_buffer(__global float4* src0, __global float4* src1, __global float4* dst)
+{
+  float4 sum = 0;
+  int offset = 0, i = 0;
+  int id = (int)get_global_id(0);
+  int sz = (int)get_global_size(0);
+  for(i=0; i<COUNT; i++) {
+    sum = sum + src0[offset + id] + src1[offset + id];
+    offset += sz;
+  }
+  dst[id] = sum;
+}