1 #include "llvm/ADT/ArrayRef.h"
2 #include "llvm/ADT/DenseMap.h"
3 #include "llvm/ADT/Optional.h"
4 #include "llvm/ADT/PointerIntPair.h"
5 #include "llvm/ADT/PointerUnion.h"
6 #include "llvm/ADT/SmallString.h"
7 #include "llvm/ADT/SmallVector.h"
8 #include "llvm/ADT/StringMap.h"
9 #include "llvm/ADT/Twine.h"
10 #include "llvm/ADT/ilist.h"
11 #include "llvm/Support/Error.h"
12 
13 int Array[] = {1, 2, 3};
14 auto IntPtr = reinterpret_cast<int *>(0xabc);
15 
16 llvm::ArrayRef<int> ArrayRef(Array);
17 llvm::MutableArrayRef<int> MutableArrayRef(Array);
18 llvm::DenseMap<int, int> DenseMap = {{4, 5}, {6, 7}};
19 llvm::StringMap<int> StringMap = {{"foo", 123}, {"bar", 456}};
20 llvm::Expected<int> ExpectedValue(8);
21 llvm::Expected<int> ExpectedError(llvm::createStringError({}, ""));
22 llvm::Optional<int> OptionalValue(9);
23 llvm::Optional<int> OptionalNone(llvm::None);
24 llvm::SmallVector<int, 5> SmallVector = {10, 11, 12};
25 llvm::SmallString<5> SmallString("foo");
26 llvm::StringRef StringRef = "bar";
27 llvm::Twine Twine = llvm::Twine(SmallString) + StringRef;
28 llvm::PointerIntPair<int *, 1> PointerIntPair(IntPtr, 1);
29 
30 struct alignas(8) Z {};
31 llvm::PointerUnion<Z *, int *> PointerUnion(IntPtr);
32 
33 // No members which instantiate PointerUnionUIntTraits<Z *> (e.g. get<T *>())
34 // are called, and this instance will therefore be raw-printed.
35 llvm::PointerUnion<Z *, float *> RawPrintingPointerUnion(nullptr);
36 
37 using IlistTag = llvm::ilist_tag<struct A>;
38 using SimpleIlistTag = llvm::ilist_tag<struct B>;
39 struct IlistNode : llvm::ilist_node<IlistNode, IlistTag>,
40                    llvm::ilist_node<IlistNode, SimpleIlistTag> {
41   int Value;
42 };
43 auto Ilist = [] {
44   llvm::ilist<IlistNode, IlistTag> Result;
45   for (int I : {13, 14, 15}) {
46     Result.push_back(new IlistNode);
47     Result.back().Value = I;
48   }
49   return Result;
50 }();
51 auto SimpleIlist = []() {
52   llvm::simple_ilist<IlistNode, SimpleIlistTag> Result;
53   for (auto &Node : Ilist)
54     Result.push_front(Node);
55   return Result;
56 }();
57 
58 int main() {
59   // Reference symbols that might otherwise be stripped.
60   ArrayRef[0];
61   MutableArrayRef[0];
62   (void)!ExpectedValue;
63   (void)!ExpectedError;
64   *OptionalValue;
65   *OptionalNone;
66   return 0;
67 }
68