Files
clang-p2996/libc/test/integration/startup/gpu/rpc_test.cpp
Joseph Huber a6ef0debb1 [libc][NFC] Rename RPC opcodes to better reflect their usage
Summary:
RPC_ is a generic prefix here, use LIBC_ to indicate that these are
opcodes used to implement the C library
2024-12-02 15:35:08 -06:00

55 lines
1.7 KiB
C++

//===-- Loader test to check the RPC interface with the loader ------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "include/llvm-libc-types/test_rpc_opcodes_t.h"
#include "src/__support/GPU/utils.h"
#include "src/__support/RPC/rpc_client.h"
#include "test/IntegrationTest/test.h"
using namespace LIBC_NAMESPACE;
static void test_add_simple() {
uint32_t num_additions =
10 + 10 * gpu::get_thread_id() + 10 * gpu::get_block_id();
uint64_t cnt = 0;
for (uint32_t i = 0; i < num_additions; ++i) {
LIBC_NAMESPACE::rpc::Client::Port port =
LIBC_NAMESPACE::rpc::client.open<RPC_TEST_INCREMENT>();
port.send_and_recv(
[=](LIBC_NAMESPACE::rpc::Buffer *buffer, uint32_t) {
reinterpret_cast<uint64_t *>(buffer->data)[0] = cnt;
},
[&](LIBC_NAMESPACE::rpc::Buffer *buffer, uint32_t) {
cnt = reinterpret_cast<uint64_t *>(buffer->data)[0];
});
port.close();
}
ASSERT_TRUE(cnt == num_additions && "Incorrect sum");
}
// Test to ensure that the RPC mechanism doesn't hang on divergence.
static void test_noop(uint8_t data) {
LIBC_NAMESPACE::rpc::Client::Port port =
LIBC_NAMESPACE::rpc::client.open<LIBC_NOOP>();
port.send([=](LIBC_NAMESPACE::rpc::Buffer *buffer, uint32_t) {
buffer->data[0] = data;
});
port.close();
}
TEST_MAIN(int argc, char **argv, char **envp) {
test_add_simple();
if (gpu::get_thread_id() % 2)
test_noop(1);
else
test_noop(2);
return 0;
}