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//===- LLVMContextTest.cpp - LLVMContext unit tests -----------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/IR/LLVMContext.h"
#include "llvm/IR/DebugInfoMetadata.h"
#include "gtest/gtest.h"
using namespace llvm;
namespace {
TEST(LLVMContextTest, enableDebugTypeODRUniquing) {
LLVMContext Context;
EXPECT_FALSE(Context.isODRUniquingDebugTypes());
Context.enableDebugTypeODRUniquing();
EXPECT_TRUE(Context.isODRUniquingDebugTypes());
Context.disableDebugTypeODRUniquing();
EXPECT_FALSE(Context.isODRUniquingDebugTypes());
}
TEST(LLVMContextTest, getOrInsertODRUniquedType) {
LLVMContext Context;
MDString &UUID = *MDString::get(Context, "string");
// Without a type map, this should return null.
EXPECT_FALSE(DICompositeType::getODRType(
Context, UUID, dwarf::DW_TAG_class_type, nullptr, nullptr, 0, nullptr,
nullptr, 0, 0, 0, 0, nullptr, 0, nullptr, nullptr));
// Enable the mapping. There still shouldn't be a type.
Context.enableDebugTypeODRUniquing();
EXPECT_FALSE(DICompositeType::getODRTypeIfExists(Context, UUID));
// Create some ODR-uniqued type.
auto &CT = *DICompositeType::getODRType(
Context, UUID, dwarf::DW_TAG_class_type, nullptr, nullptr, 0, nullptr,
nullptr, 0, 0, 0, 0, nullptr, 0, nullptr, nullptr);
EXPECT_EQ(UUID.getString(), CT.getIdentifier());
// Check that we get it back, even if we change a field.
EXPECT_EQ(&CT, DICompositeType::getODRTypeIfExists(Context, UUID));
EXPECT_EQ(
&CT, DICompositeType::getODRType(Context, UUID, dwarf::DW_TAG_class_type,
nullptr, nullptr, 0, nullptr, nullptr, 0,
0, 0, 0, nullptr, 0, nullptr, nullptr));
EXPECT_EQ(&CT, DICompositeType::getODRType(
Context, UUID, dwarf::DW_TAG_class_type,
MDString::get(Context, "name"), nullptr, 0, nullptr,
nullptr, 0, 0, 0, 0, nullptr, 0, nullptr, nullptr));
// Check that it's discarded with the type map.
Context.disableDebugTypeODRUniquing();
EXPECT_FALSE(DICompositeType::getODRTypeIfExists(Context, UUID));
// And it shouldn't magically reappear...
Context.enableDebugTypeODRUniquing();
EXPECT_FALSE(DICompositeType::getODRTypeIfExists(Context, UUID));
}
} // end namespace
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