test case for DW multiplication

This case tests whether a predication bug of DW multiplication
had been fixed.

Signed-off-by: Homer Hsing <homer.xing@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

1 files changed, 64 insertions, 0 deletions

diff --git a/utests/compiler_displacement_map_element.cpp b/utests/compiler_displacement_map_element.cpp
new file mode 100644
index 00000000..98041ec4
--- /dev/null
+++ b/utests/compiler_displacement_map_element.cpp
@@ -0,0 +1,64 @@
+#include "utest_helper.hpp"
+
+typedef unsigned int uint;
+constexpr int W = 16, H = 16;
+constexpr int SIZE = W * H;
+uint in_1[SIZE];
+uint disp_map[SIZE];
+uint out_1[SIZE];
+
+uint cpu(const int cx, const int cy, const uint *in, const uint *disp_map, int w, int h) {
+  uint c = disp_map[cy * w + cx];
+  int x_pos = cx + c;
+  int y_pos = cy + c;
+  if(0 <= x_pos && x_pos < w && 0 <= y_pos && y_pos < h)
+    return in[y_pos * w + x_pos];
+  else
+    return 0;
+}
+
+void test() {
+  OCL_MAP_BUFFER(2);
+  for(int y=0; y<H; y++)
+    for(int x=0; x<W; x++) {
+      uint out = ((uint*)buf_data[2]) [y * W + x];
+      uint wish = cpu(x, y, in_1, disp_map, W, H);
+      if(out != wish)
+        printf("XXX %d %d %x %x\n", x, y, out, wish);
+      OCL_ASSERT(out == wish);
+    }
+  OCL_UNMAP_BUFFER(2);
+}
+
+void displacement_map_element(void) {
+  int i, pass;
+
+  OCL_CREATE_KERNEL("compiler_displacement_map_element");
+  OCL_CREATE_BUFFER(buf[0], 0, SIZE * sizeof(uint), NULL);
+  OCL_CREATE_BUFFER(buf[1], 0, SIZE * sizeof(uint), NULL);
+  OCL_CREATE_BUFFER(buf[2], 0, SIZE * sizeof(uint), NULL);
+  OCL_SET_ARG(0, sizeof(cl_mem), &buf[0]);
+  OCL_SET_ARG(1, sizeof(cl_mem), &buf[1]);
+  OCL_SET_ARG(2, sizeof(W), &W);
+  OCL_SET_ARG(3, sizeof(H), &H);
+  OCL_SET_ARG(4, sizeof(cl_mem), &buf[2]);
+  globals[0] = W;
+  globals[1] = H;
+  locals[0] = 16;
+  locals[1] = 16;
+
+  for (pass = 0; pass < 8; pass ++) {
+    OCL_MAP_BUFFER(0);
+    OCL_MAP_BUFFER(1);
+    for (i = 0; i < SIZE; i ++) {
+      in_1[i] = ((uint*)buf_data[0])[i] = ((rand() & 0xFFFF) << 16) | (rand() & 0xFFFF);
+      disp_map[i] = ((uint*)buf_data[1])[i] = rand() & 3;
+    }
+    OCL_UNMAP_BUFFER(0);
+    OCL_UNMAP_BUFFER(1);
+    OCL_NDRANGE(2);
+    test();
+  }
+}
+
+MAKE_UTEST_FROM_FUNCTION(displacement_map_element);