Refactor kernel triggering in fuzz tests

- Properly set up and trigger the test kernel within the fuzz test.
- Change the test kernel used from "bar" to "fill".
- Refactor env vars used in test.

Author: PatKamin

test/fuzz/CMakeLists.txt

@@ -1,4 +1,4 @@
-# Copyright (C) 2023 Intel Corporation
+# Copyright (C) 2023-2024 Intel Corporation
 # Part of the Unified-Runtime Project, under the Apache License v2.0 with LLVM Exceptions.
 # See LICENSE.TXT
 # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
@@ -38,7 +38,7 @@ function(add_fuzz_test name label)
         ENVIRONMENT "${ENV_VARS}")
     # TODO: Should we check if this sanitizer flag is available?
     target_compile_options(${TEST_TARGET_NAME} PRIVATE -g -fsanitize=fuzzer)
-    target_compile_definitions(${TEST_TARGET_NAME} PRIVATE -DKERNEL_IL_PATH="${UR_CONFORMANCE_DEVICE_BINARIES_DIR}/bar/sycl_spir641.spv")
+    target_compile_definitions(${TEST_TARGET_NAME} PRIVATE -DKERNEL_IL_PATH="${UR_CONFORMANCE_DEVICE_BINARIES_DIR}/fill/spir64.bin.0")
     target_include_directories(${TEST_TARGET_NAME} PRIVATE ${UR_CONFORMANCE_DEVICE_BINARIES_DIR})
 
     add_dependencies(${TEST_TARGET_NAME} generate_device_binaries)

test/fuzz/urFuzz.cpp

@@ -1,4 +1,4 @@
-// Copyright (C) 2023 Intel Corporation
+// Copyright (C) 2023-2024 Intel Corporation
 // Part of the Unified-Runtime Project, under the Apache License v2.0 with LLVM Exceptions.
 // See LICENSE.TXT
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
@@ -353,36 +353,54 @@ int ur_program_create_with_il(TestState &state) {
     }
 
     std::vector<char> il_bin;
-    ur_program_handle_t program = nullptr;
-    ur_kernel_handle_t kernel = nullptr;
-    ur_queue_handle_t queue = nullptr;
-    ur_event_handle_t event = nullptr;
+    ur_program_handle_t program;
+    ur_kernel_handle_t kernel;
+    ur_queue_handle_t queue;
+    ur_event_handle_t event;
     auto &context = state.contexts[state.context_num]->handle;
     auto &device = state.devices[state.device_num];
+    // TODO: Use some generic utility to retrieve/use kernels
     std::string kernel_name =
-        uur::device_binaries::program_kernel_map["bar"][0];
+        uur::device_binaries::program_kernel_map["fill"][0];
 
     il_bin = state.load_kernel_source();
     if (il_bin.empty()) {
         return -1;
     }
 
+    constexpr int vec_size = 64;
+    std::vector<int> vec(vec_size, 0);
+
     urProgramCreateWithIL(context, il_bin.data(), il_bin.size(), nullptr,
                           &program);
     urProgramBuild(context, program, nullptr);
+
+    ur_mem_handle_t memory_buffer;
+    urMemBufferCreate(context, UR_MEM_FLAG_READ_WRITE, vec_size * sizeof(int),
+                      nullptr, &memory_buffer);
     urKernelCreate(program, kernel_name.data(), &kernel);
+    urKernelSetArgMemObj(kernel, 0, nullptr, memory_buffer);
+
     urQueueCreate(context, device, nullptr, &queue);
 
-    const uint32_t nDim = 3;
-    const size_t gWorkOffset[] = {0, 0, 0};
-    const size_t gWorkSize[] = {128, 128, 128};
+    urEnqueueMemBufferWrite(queue, memory_buffer, true, 0,
+                            vec_size * sizeof(int), vec.data(), 0, nullptr,
+                            &event);
+    urEventWait(1, &event);
+    urEventRelease(event);
 
-    urEnqueueKernelLaunch(queue, kernel, nDim, gWorkOffset, gWorkSize, nullptr,
-                          0, nullptr, &event);
+    constexpr uint32_t nDim = 3;
+    const size_t gWorkOffset[] = {0, 0, 0};
+    const size_t gWorkSize[] = {vec_size * 4, 1, 1};
+    const size_t lWorkSize[] = {1, 1, 1};
 
+    urEnqueueKernelLaunch(queue, kernel, nDim, gWorkOffset, gWorkSize,
+                          lWorkSize, 0, nullptr, &event);
     urEventWait(1, &event);
     urEventRelease(event);
+
     urQueueFinish(queue);
+    urMemRelease(memory_buffer);
     urQueueRelease(queue);
     urKernelRelease(kernel);
     urProgramRelease(program);

test/fuzz/utils.hpp

@@ -1,4 +1,4 @@
-// Copyright (C) 2023 Intel Corporation
+// Copyright (C) 2023-2024 Intel Corporation
 // Part of the Unified-Runtime Project, under the Apache License v2.0 with LLVM Exceptions.
 // See LICENSE.TXT
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
@@ -105,7 +105,11 @@ struct TestState {
     uint8_t context_num;
 
     TestState(std::unique_ptr<FuzzedDataProvider> data_provider)
-        : data_provider(std::move(data_provider)) {}
+        : data_provider(std::move(data_provider)) {
+        num_adapters = 0;
+        num_platforms = 0;
+        num_devices = 0;
+    }
 
     template <typename IntType> int get_next_input_data(IntType *data) {
         if (data_provider->remaining_bytes() < sizeof(IntType)) {