Utest: Add double division test.

Signed-off-by: Junyan He <junyan.he@linux.intel.com>
Reviewed-by: Yang Rong <rong.r.yang@intel.com>

1 files changed, 80 insertions, 0 deletions

diff --git a/utests/compiler_double_div.cpp b/utests/compiler_double_div.cpp
new file mode 100644
index 00000000..db763e30
--- /dev/null
+++ b/utests/compiler_double_div.cpp
@@ -0,0 +1,80 @@
+#include <cmath>
+#include "utest_helper.hpp"
+
+void compiler_double_div(void)
+{
+  const size_t n = 16;
+  double cpu_src0[n], cpu_src1[n];
+
+  if (!cl_check_double())
+    return;
+
+  // Setup kernel and buffers
+  OCL_CREATE_KERNEL("compiler_double_div");
+  OCL_CREATE_BUFFER(buf[0], 0, n * sizeof(double), NULL);
+  OCL_CREATE_BUFFER(buf[1], 0, n * sizeof(double), NULL);
+  OCL_CREATE_BUFFER(buf[2], 0, n * sizeof(double), NULL);
+  OCL_SET_ARG(0, sizeof(cl_mem), &buf[0]);
+  OCL_SET_ARG(1, sizeof(cl_mem), &buf[1]);
+  OCL_SET_ARG(2, sizeof(cl_mem), &buf[2]);
+  globals[0] = n;
+  locals[0] = 16;
+
+  // Run random tests
+  OCL_MAP_BUFFER(0);
+  OCL_MAP_BUFFER(1);
+  for (int32_t i = 0; i < (int32_t) n; ++i) {
+    cpu_src0[i] = ((double*)buf_data[0])[i] = ((double)(((i - 5)*1334) * 11105));
+    cpu_src1[i] = ((double*)buf_data[1])[i] = 499.13542123d*(i + 132.43d + 142.32*i);
+  }
+  OCL_UNMAP_BUFFER(0);
+  OCL_UNMAP_BUFFER(1);
+
+  // Run the kernel on GPU
+  OCL_NDRANGE(1);
+
+  // Compare
+  OCL_MAP_BUFFER(2);
+  for (int32_t i = 0; i < (int32_t) n; ++i) {
+    if (i % 3 != 0)
+      OCL_ASSERT(fabs(((double*)buf_data[2])[i] - cpu_src0[i]/cpu_src1[i]) < 1e-32);
+    else
+      OCL_ASSERT(((double*)buf_data[2])[i] == 0.0d);
+
+    //printf("%d :  %f        ref value: %f\n", i, ((double*)buf_data[2])[i], cpu_src0[i]/cpu_src1[i]);
+  }
+  OCL_UNMAP_BUFFER(2);
+}
+
+MAKE_UTEST_FROM_FUNCTION(compiler_double_div);
+
+void compiler_double_div_uniform(void)
+{
+  double src0 = 13234.1438786319d;
+  double src1 = 0.000134123d;
+  double tmp = 25.128d;
+
+  if (!cl_check_double())
+    return;
+
+  // Setup kernel and buffers
+  OCL_CREATE_KERNEL_FROM_FILE("compiler_double_div", "compiler_double_div_uniform");
+  OCL_CREATE_BUFFER(buf[0], 0, sizeof(double), NULL);
+  OCL_SET_ARG(0, sizeof(double), &src0);
+  OCL_SET_ARG(1, sizeof(double), &src1);
+  OCL_SET_ARG(2, sizeof(double), &tmp);
+  OCL_SET_ARG(3, sizeof(cl_mem), &buf[0]);
+  globals[0] = 16;
+  locals[0] = 16;
+
+  // Run the kernel on GPU
+  OCL_NDRANGE(1);
+
+  // Compare
+  OCL_MAP_BUFFER(0);
+  OCL_ASSERT(fabs(((double*)buf_data[0])[0] - src0/src1) < 1e-32);
+  //printf("%f        ref value: %f\n", ((double*)buf_data[0])[0], src0/src1);
+  OCL_UNMAP_BUFFER(0);
+}
+
+MAKE_UTEST_FROM_FUNCTION(compiler_double_div_uniform);