1 | //===-- Loader test to check the RPC interface with the loader ------------===// |
2 | // |
3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
4 | // See https://llvm.org/LICENSE.txt for license information. |
5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
6 | // |
7 | //===----------------------------------------------------------------------===// |
8 | |
9 | #include "include/llvm-libc-types/test_rpc_opcodes_t.h" |
10 | #include "src/__support/GPU/utils.h" |
11 | #include "src/__support/RPC/rpc_client.h" |
12 | #include "test/IntegrationTest/test.h" |
13 | |
14 | using namespace LIBC_NAMESPACE; |
15 | |
16 | static void test_add_simple() { |
17 | uint64_t num_additions = |
18 | 10 + 10 * gpu::get_thread_id() + 10 * gpu::get_block_id(); |
19 | uint64_t cnt = 0; |
20 | for (uint32_t i = 0; i < num_additions; ++i) { |
21 | LIBC_NAMESPACE::rpc::Client::Port port = |
22 | LIBC_NAMESPACE::rpc::client.open<RPC_TEST_INCREMENT>(); |
23 | port.send_and_recv( |
24 | [=](LIBC_NAMESPACE::rpc::Buffer *buffer, uint32_t) { |
25 | reinterpret_cast<uint64_t *>(buffer->data)[0] = cnt; |
26 | }, |
27 | [&](LIBC_NAMESPACE::rpc::Buffer *buffer, uint32_t) { |
28 | cnt = reinterpret_cast<uint64_t *>(buffer->data)[0]; |
29 | }); |
30 | port.close(); |
31 | } |
32 | ASSERT_TRUE(cnt == num_additions && "Incorrect sum" ); |
33 | } |
34 | |
35 | // Test to ensure that the RPC mechanism doesn't hang on divergence. |
36 | static void test_noop(uint8_t data) { |
37 | LIBC_NAMESPACE::rpc::Client::Port port = |
38 | LIBC_NAMESPACE::rpc::client.open<LIBC_NOOP>(); |
39 | port.send([=](LIBC_NAMESPACE::rpc::Buffer *buffer, uint32_t) { |
40 | buffer->data[0] = data; |
41 | }); |
42 | port.close(); |
43 | } |
44 | |
45 | TEST_MAIN(int argc, char **argv, char **envp) { |
46 | test_add_simple(); |
47 | |
48 | if (gpu::get_thread_id() % 2) |
49 | test_noop(data: 1); |
50 | else |
51 | test_noop(data: 2); |
52 | |
53 | return 0; |
54 | } |
55 | |