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//===----------------------------------------------------------------------===//
//
// 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 "Plugin/CodeGenTestPass.h"
#include "llvm/CodeGen/MachineModuleInfo.h"
#include "llvm/CodeGen/Passes.h"
#include "llvm/CodeGen/TargetPassConfig.h"
#include "llvm/Config/config.h"
#include "llvm/IR/LegacyPassManager.h"
#include "llvm/MC/TargetRegistry.h"
#include "llvm/Support/DynamicLibrary.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/Path.h"
#include "llvm/Support/TargetSelect.h"
#include "llvm/Target/RegisterTargetPassConfigCallback.h"
#include "llvm/Target/TargetMachine.h"
#include "gtest/gtest.h"
using namespace llvm;
namespace {
void anchor() {}
std::string libPath(const std::string &Name) {
const auto &Argvs = testing::internal::GetArgvs();
const char *Argv0 = Argvs.size() > 0 ? Argvs[0].c_str() : "CGPluginTest";
void *Ptr = (void *)(intptr_t)anchor;
std::string Path = sys::fs::getMainExecutable(Argv0, Ptr);
SmallString<256> Buf{sys::path::parent_path(Path)};
sys::path::append(Buf, (Name + LLVM_PLUGIN_EXT).c_str());
return std::string(Buf.str());
}
} // namespace
namespace llvm {
class CGPluginTests : public testing::Test {
protected:
static void SetUpTestCase() {
InitializeAllTargetMCs();
InitializeAllTargetInfos();
InitializeAllTargets();
}
};
} // namespace llvm
TEST_F(CGPluginTests, LoadPlugin) {
#if !defined(LLVM_ENABLE_PLUGINS)
// Skip the test if plugins are disabled.
GTEST_SKIP();
#endif
auto PluginPath = libPath("CGTestPlugin");
ASSERT_NE("", PluginPath);
std::string Error;
auto Library = sys::DynamicLibrary::getLibrary(PluginPath.c_str(), &Error);
ASSERT_TRUE(Library.isValid()) << Error;
sys::DynamicLibrary::closeLibrary(Library);
}
TEST_F(CGPluginTests, ExecuteCallback) {
#if !defined(LLVM_ENABLE_PLUGINS)
// Skip the test if plugins are disabled.
GTEST_SKIP();
#endif
volatile bool CallbackExecuted = false;
volatile bool MPassExecuted = false;
RegisterTargetPassConfigCallback X{[&](auto &TM, auto &PM, auto *TPC) {
CallbackExecuted = true;
TPC->insertPass(&GCLoweringID, &CodeGenTest::ID);
}};
CodeGenTest::RunCallback = [&] { MPassExecuted = true; };
TargetOptions Options;
std::unique_ptr<MCContext> MCC;
for (auto T : TargetRegistry::targets()) {
if (!T.hasTargetMachine())
continue;
Triple TT{T.getName(), "", ""};
auto *TM = T.createTargetMachine(TT, "", "", Options, std::nullopt,
std::nullopt, CodeGenOptLevel::Default);
ASSERT_TRUE(TM);
legacy::PassManager PM;
MCC.reset(new MCContext(TT, TM->getMCAsmInfo(), TM->getMCRegisterInfo(),
TM->getMCSubtargetInfo()));
auto *PtrMCC = MCC.get();
CallbackExecuted = false;
MPassExecuted = false;
if (TM->addPassesToEmitMC(PM, PtrMCC, outs()) == true)
continue;
ASSERT_TRUE(CallbackExecuted) << T.getName() << " callback failed";
ASSERT_TRUE(MPassExecuted) << T.getName() << " MachinePass failed";
}
}
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