1 //===---------------- SimpleExecutorMemoryManagerTest.cpp -----------------===//
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 "llvm/ExecutionEngine/Orc/TargetProcess/SimpleExecutorMemoryManager.h"
10 #include "llvm/Testing/Support/Error.h"
11 #include "gtest/gtest.h"
12 
13 #include <limits>
14 #include <vector>
15 
16 using namespace llvm;
17 using namespace llvm::orc;
18 using namespace llvm::orc::shared;
19 using namespace llvm::orc::rt_bootstrap;
20 
21 namespace {
22 
23 orc::shared::CWrapperFunctionResult incrementWrapper(const char *ArgData,
24                                                      size_t ArgSize) {
25   return WrapperFunction<SPSError(SPSExecutorAddr)>::handle(
26              ArgData, ArgSize,
27              [](ExecutorAddr A) -> Error {
28                *A.toPtr<int *>() += 1;
29                return Error::success();
30              })
31       .release();
32 }
33 
34 TEST(SimpleExecutorMemoryManagerTest, AllocFinalizeFree) {
35   SimpleExecutorMemoryManager MemMgr;
36 
37   constexpr unsigned AllocSize = 16384;
38   auto Mem = MemMgr.allocate(AllocSize);
39   EXPECT_THAT_ERROR(Mem.takeError(), Succeeded());
40 
41   std::string HW = "Hello, world!";
42 
43   int FinalizeCounter = 0;
44   int DeallocateCounter = 0;
45 
46   tpctypes::FinalizeRequest FR;
47   FR.Segments.push_back(
48       tpctypes::SegFinalizeRequest{tpctypes::WPF_Read | tpctypes::WPF_Write,
49                                    *Mem,
50                                    AllocSize,
51                                    {HW.data(), HW.size() + 1}});
52   FR.Actions.push_back(
53       {/* Finalize: */
54        cantFail(WrapperFunctionCall::Create<SPSArgList<SPSExecutorAddr>>(
55            ExecutorAddr::fromPtr(incrementWrapper),
56            ExecutorAddr::fromPtr(&FinalizeCounter))),
57        /*  Deallocate: */
58        cantFail(WrapperFunctionCall::Create<SPSArgList<SPSExecutorAddr>>(
59            ExecutorAddr::fromPtr(incrementWrapper),
60            ExecutorAddr::fromPtr(&DeallocateCounter)))});
61 
62   EXPECT_EQ(FinalizeCounter, 0);
63   EXPECT_EQ(DeallocateCounter, 0);
64 
65   auto FinalizeErr = MemMgr.finalize(FR);
66   EXPECT_THAT_ERROR(std::move(FinalizeErr), Succeeded());
67 
68   EXPECT_EQ(FinalizeCounter, 1);
69   EXPECT_EQ(DeallocateCounter, 0);
70 
71   EXPECT_EQ(HW, std::string(Mem->toPtr<const char *>()));
72 
73   auto DeallocateErr = MemMgr.deallocate({*Mem});
74   EXPECT_THAT_ERROR(std::move(DeallocateErr), Succeeded());
75 
76   EXPECT_EQ(FinalizeCounter, 1);
77   EXPECT_EQ(DeallocateCounter, 1);
78 }
79 
80 } // namespace
81