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//===- SerializeToLLVMBitcode.cpp -------------------------------*- C++ -*-===//
//
// This file is licensed 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 "mlir/IR/BuiltinOps.h"
#include "mlir/IR/MLIRContext.h"
#include "mlir/Parser/Parser.h"
#include "mlir/Target/LLVM/ModuleToObject.h"
#include "mlir/Target/LLVMIR/Dialect/Builtin/BuiltinToLLVMIRTranslation.h"
#include "mlir/Target/LLVMIR/Dialect/LLVMIR/LLVMToLLVMIRTranslation.h"
#include "llvm/IRReader/IRReader.h"
#include "llvm/Support/MemoryBufferRef.h"
#include "llvm/Support/TargetSelect.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/TargetParser/Host.h"
#include "gmock/gmock.h"
using namespace mlir;
// Skip the test if the native target was not built.
#if LLVM_NATIVE_TARGET_TEST_ENABLED == 0
#define SKIP_WITHOUT_NATIVE(x) DISABLED_##x
#else
#define SKIP_WITHOUT_NATIVE(x) x
#endif
class MLIRTargetLLVM : public ::testing::Test {
protected:
void SetUp() override {
llvm::InitializeNativeTarget();
llvm::InitializeNativeTargetAsmPrinter();
}
};
TEST_F(MLIRTargetLLVM, SKIP_WITHOUT_NATIVE(SerializeToLLVMBitcode)) {
std::string moduleStr = R"mlir(
llvm.func @foo(%arg0 : i32) {
llvm.return
}
)mlir";
DialectRegistry registry;
registerBuiltinDialectTranslation(registry);
registerLLVMDialectTranslation(registry);
MLIRContext context(registry);
OwningOpRef<ModuleOp> module =
parseSourceString<ModuleOp>(moduleStr, &context);
ASSERT_TRUE(!!module);
// Serialize the module.
std::string targetTriple = llvm::sys::getProcessTriple();
LLVM::ModuleToObject serializer(*(module->getOperation()), targetTriple, "",
"");
std::optional<SmallVector<char, 0>> serializedModule = serializer.run();
ASSERT_TRUE(!!serializedModule);
ASSERT_TRUE(!serializedModule->empty());
// Read the serialized module.
llvm::MemoryBufferRef buffer(
StringRef(serializedModule->data(), serializedModule->size()), "module");
llvm::LLVMContext llvmContext;
llvm::Expected<std::unique_ptr<llvm::Module>> llvmModule =
llvm::getLazyBitcodeModule(buffer, llvmContext);
ASSERT_TRUE(!!llvmModule);
ASSERT_TRUE(!!*llvmModule);
// Check that it has a function named `foo`.
ASSERT_TRUE((*llvmModule)->getFunction("foo") != nullptr);
}
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