Update loaded bin if the same binary is wrapped with different cl_program

Author: sophimao

src/acl_kernel.cpp

@@ -3112,6 +3112,13 @@ int acl_submit_kernel_device_op(cl_event event) {
     // We managed to enqueue everything.
     cl_kernel kernel = event->cmd.info.ndrange_kernel.kernel;
 
+    // If current last bin is loaded on the board and we are going to update
+    // last bin pointer without any reprogram, we should update the loaded bin
+    // to reflect that as well.
+    if (!need_reprogram && device->last_bin == device->loaded_bin &&
+        device->last_bin != event->cmd.info.ndrange_kernel.dev_bin) {
+      device->loaded_bin = event->cmd.info.ndrange_kernel.dev_bin;
+    }
     device->last_bin = event->cmd.info.ndrange_kernel.dev_bin;
     event->last_device_op = last_op;
 

test/acl_kernel_test.cpp

@@ -4651,9 +4651,8 @@ TEST(acl_kernel_reprogram_scheduler, skip_reprogram_on_start) {
   CHECK_EQUAL(CL_SUCCESS, clSetUserEventStatus(ue, CL_COMPLETE));
   CHECK_EQUAL(CL_SUCCESS, clReleaseEvent(ue));
 
-  // Since reprogram didn't occur, only last_bin should be updated
   CHECK_EQUAL(&(dp0->device_binary), m_device->last_bin);
-  CHECK(m_device->loaded_bin == NULL);
+  CHECK_EQUAL(&(dp0->device_binary), m_device->loaded_bin);
 
   // set MEM_MIGRATE 1 to RUNNING +
   // set MEM_MIGRATE 1 to COMPLETE +