1//===- llvm/unittest/IR/TypesTest.cpp - Type unit tests -------------------===//
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/IR/DerivedTypes.h"
10#include "llvm/IR/LLVMContext.h"
11#include "llvm/IR/TypedPointerType.h"
12#include "gtest/gtest.h"
13using namespace llvm;
14
15namespace {
16
17TEST(TypesTest, StructType) {
18 LLVMContext C;
19
20 // PR13522
21 StructType *Struct = StructType::create(Context&: C, Name: "FooBar");
22 EXPECT_EQ("FooBar", Struct->getName());
23 Struct->setName(Struct->getName().substr(Start: 0, N: 3));
24 EXPECT_EQ("Foo", Struct->getName());
25 Struct->setName("");
26 EXPECT_TRUE(Struct->getName().empty());
27 EXPECT_FALSE(Struct->hasName());
28}
29
30TEST(TypesTest, LayoutIdenticalEmptyStructs) {
31 LLVMContext C;
32
33 StructType *Foo = StructType::create(Context&: C, Name: "Foo");
34 StructType *Bar = StructType::create(Context&: C, Name: "Bar");
35 EXPECT_TRUE(Foo->isLayoutIdentical(Bar));
36}
37
38TEST(TypesTest, TargetExtType) {
39 LLVMContext Context;
40 Type *A = TargetExtType::get(Context, Name: "typea");
41 Type *Aparam = TargetExtType::get(Context, Name: "typea", Types: {}, Ints: {0, 1});
42 Type *Aparam2 = TargetExtType::get(Context, Name: "typea", Types: {}, Ints: {0, 1});
43 // Opaque types with same parameters are identical...
44 EXPECT_EQ(Aparam, Aparam2);
45 // ... but just having the same name is not enough.
46 EXPECT_NE(A, Aparam);
47}
48
49TEST(TypedPointerType, PrintTest) {
50 std::string Buffer;
51 LLVMContext Context;
52 raw_string_ostream OS(Buffer);
53
54 Type *I8Ptr = TypedPointerType::get(ElementType: Type::getInt8Ty(C&: Context), AddressSpace: 0);
55 I8Ptr->print(O&: OS);
56 EXPECT_EQ(StringRef(Buffer), ("typedptr(i8, 0)"));
57}
58
59} // end anonymous namespace
60

source code of llvm/unittests/IR/TypesTest.cpp