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//===- llvm/unittest/IR/TypesTest.cpp - Type unit tests -------------------===//
//
// 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 "llvm/IR/DerivedTypes.h"
#include "llvm/IR/LLVMContext.h"
#include "gtest/gtest.h"
using namespace llvm;
namespace {
TEST(TypesTest, StructType) {
LLVMContext C;
// PR13522
StructType *Struct = StructType::create(C, "FooBar");
EXPECT_EQ("FooBar", Struct->getName());
Struct->setName(Struct->getName().substr(0, 3));
EXPECT_EQ("Foo", Struct->getName());
Struct->setName("");
EXPECT_TRUE(Struct->getName().empty());
EXPECT_FALSE(Struct->hasName());
}
TEST(TypesTest, LayoutIdenticalEmptyStructs) {
LLVMContext C;
StructType *Foo = StructType::create(C, "Foo");
StructType *Bar = StructType::create(C, "Bar");
EXPECT_TRUE(Foo->isLayoutIdentical(Bar));
}
TEST(TypesTest, CopyPointerType) {
LLVMContext COpaquePointers;
COpaquePointers.setOpaquePointers(true);
PointerType *P1 = PointerType::get(COpaquePointers, 1);
EXPECT_TRUE(P1->isOpaque());
PointerType *P1C = PointerType::getWithSamePointeeType(P1, 1);
EXPECT_EQ(P1, P1C);
EXPECT_TRUE(P1C->isOpaque());
PointerType *P1C0 = PointerType::getWithSamePointeeType(P1, 0);
EXPECT_NE(P1, P1C0);
EXPECT_TRUE(P1C0->isOpaque());
LLVMContext CTypedPointers;
CTypedPointers.setOpaquePointers(false);
Type *Int8 = Type::getInt8Ty(CTypedPointers);
PointerType *P2 = PointerType::get(Int8, 1);
EXPECT_FALSE(P2->isOpaque());
PointerType *P2C = PointerType::getWithSamePointeeType(P2, 1);
EXPECT_EQ(P2, P2C);
EXPECT_FALSE(P2C->isOpaque());
PointerType *P2C0 = PointerType::getWithSamePointeeType(P2, 0);
EXPECT_NE(P2, P2C0);
EXPECT_FALSE(P2C0->isOpaque());
}
} // end anonymous namespace
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