Flush print buffer when destroying the command queue

This ensures all pending prints are flushed, in the case
for instance zeCommandQueueSynchronize() is not called.

Change-Id: I4b50c535e4681eff4708242febc948c21c715055
Signed-off: Jaime Arteaga <jaime.a.arteaga.molina@intel.com>

Author: Jaime Arteaga

level_zero/core/source/cmdqueue/cmdqueue_hw.inl

@@ -42,6 +42,7 @@ ze_result_t CommandQueueHw<gfxCoreFamily>::createFence(const ze_fence_desc_t *de
 
 template <GFXCORE_FAMILY gfxCoreFamily>
 ze_result_t CommandQueueHw<gfxCoreFamily>::destroy() {
+    this->printFunctionsPrintfOutput();
     delete commandStream;
     buffers.destroy(this->getDevice()->getNEODevice()->getMemoryManager());
     delete this;

level_zero/core/test/unit_tests/mocks/mock_cmdqueue.h

@@ -58,6 +58,7 @@ template <GFXCORE_FAMILY gfxCoreFamily>
 struct MockCommandQueueHw : public L0::CommandQueueHw<gfxCoreFamily> {
     using BaseClass = ::L0::CommandQueueHw<gfxCoreFamily>;
     using BaseClass::commandStream;
+    using BaseClass::printfFunctionContainer;
 
     MockCommandQueueHw(L0::Device *device, NEO::CommandStreamReceiver *csr, const ze_command_queue_desc_t *desc) : L0::CommandQueueHw<gfxCoreFamily>(device, csr, desc) {
     }

level_zero/core/test/unit_tests/mocks/mock_kernel.h

@@ -86,8 +86,13 @@ struct Mock<::L0::Kernel> : public ::L0::KernelImp {
         return nullptr;
     }
 
+    void printPrintfOutput() override {
+        printPrintfOutputCalledTimes++;
+    }
+
     WhiteBox<::L0::KernelImmutableData> immutableData;
     NEO::KernelDescriptor descriptor;
+    uint32_t printPrintfOutputCalledTimes = 0;
 };
 
 } // namespace ult

level_zero/core/test/unit_tests/sources/cmdqueue/test_cmdqueue.cpp

@@ -15,6 +15,7 @@
 #include "level_zero/core/source/driver/driver_handle_imp.h"
 #include "level_zero/core/test/unit_tests/fixtures/device_fixture.h"
 #include "level_zero/core/test/unit_tests/mocks/mock_cmdqueue.h"
+#include "level_zero/core/test/unit_tests/mocks/mock_kernel.h"
 #include "level_zero/core/test/unit_tests/mocks/mock_memory_manager.h"
 
 namespace L0 {
@@ -156,5 +157,23 @@ TEST_F(CommandQueueCreate, givenCmdQueueWithBlitCopyWhenExecutingCopyBlitCommand
     commandQueue->destroy();
 }
 
+using CommandQueueDestroySupport = IsAtLeastProduct<IGFX_SKYLAKE>;
+using CommandQueueDestroy = Test<DeviceFixture>;
+
+HWTEST2_F(CommandQueueDestroy, whenCommandQueueDestroyIsCalledPrintPrintfOutputIsCalled, CommandQueueDestroySupport) {
+    ze_command_queue_desc_t desc = {};
+    desc.version = ZE_COMMAND_QUEUE_DESC_VERSION_CURRENT;
+    auto csr = std::unique_ptr<NEO::CommandStreamReceiver>(neoDevice->createCommandStreamReceiver());
+    auto commandQueue = new MockCommandQueueHw<gfxCoreFamily>(device, csr.get(), &desc);
+    commandQueue->initialize(false);
+
+    Mock<Kernel> kernel;
+    commandQueue->printfFunctionContainer.push_back(&kernel);
+
+    EXPECT_EQ(0u, kernel.printPrintfOutputCalledTimes);
+    commandQueue->destroy();
+    EXPECT_EQ(1u, kernel.printPrintfOutputCalledTimes);
+}
+
 } // namespace ult
 } // namespace L0