support 64bit-integer multiplication

also add test case

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

1 files changed, 49 insertions, 0 deletions

diff --git a/utests/compiler_long_mult.cpp b/utests/compiler_long_mult.cpp
new file mode 100644
index 00000000..06070f7b
--- /dev/null
+++ b/utests/compiler_long_mult.cpp
@@ -0,0 +1,49 @@
+#include <cstdint>
+#include <cstring>
+#include <iostream>
+#include "utest_helper.hpp"
+
+void compiler_long_mult(void)
+{
+  const size_t n = 16;
+  int64_t src1[n], src2[n];
+
+  // Setup kernel and buffers
+  OCL_CREATE_KERNEL("compiler_long_mult");
+  OCL_CREATE_BUFFER(buf[0], 0, n * sizeof(int64_t), NULL);
+  OCL_CREATE_BUFFER(buf[1], 0, n * sizeof(int64_t), NULL);
+  OCL_CREATE_BUFFER(buf[2], 0, n * sizeof(int64_t), 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
+  for (int32_t i = 0; i < (int32_t) n; ++i) {
+    src1[i] = 0x77665544FFEEDDCCLL;
+    src2[i] = ((int64_t)rand() << 32) + rand();
+  }
+  OCL_MAP_BUFFER(0);
+  OCL_MAP_BUFFER(1);
+  memcpy(buf_data[0], src1, sizeof(src1));
+  memcpy(buf_data[1], src2, sizeof(src2));
+  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) {
+    //printf("%lx\n", ((int64_t *)buf_data[2])[i]);
+    if (i < 3)
+      OCL_ASSERT(src1[i] + src2[i] == ((int64_t *)buf_data[2])[i]);
+    else
+      OCL_ASSERT(src1[i] * src2[i] == ((int64_t *)buf_data[2])[i]);
+  }
+  OCL_UNMAP_BUFFER(2);
+}
+
+MAKE_UTEST_FROM_FUNCTION(compiler_long_mult);