unittests/Support/TypeBuilderTest.cpp

   1 //===- llvm/unittest/Support/TypeBuilderTest.cpp - TypeBuilder tests -----===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9
  10 #include "llvm/Support/TypeBuilder.h"
  11 #include "llvm/LLVMContext.h"
  12
  13 #include "gtest/gtest.h"
  14
  15 using namespace llvm;
  16
  17 namespace {
  18
  19 TEST(TypeBuilderTest, Void) {
  20   EXPECT_EQ(Type::getVoidTy(getGlobalContext()), (TypeBuilder<void, true>::get(getGlobalContext())));
  21   EXPECT_EQ(Type::getVoidTy(getGlobalContext()), (TypeBuilder<void, false>::get(getGlobalContext())));
  22   // Special case for C compatibility:
  23   EXPECT_EQ(PointerType::getUnqual(Type::getInt8Ty(getGlobalContext())),
  24             (TypeBuilder<void*, false>::get(getGlobalContext())));
  25 }
  26
  27 TEST(TypeBuilderTest, HostIntegers) {
  28   EXPECT_EQ(Type::getInt8Ty(getGlobalContext()), (TypeBuilder<int8_t, false>::get(getGlobalContext())));
  29   EXPECT_EQ(Type::getInt8Ty(getGlobalContext()), (TypeBuilder<uint8_t, false>::get(getGlobalContext())));
  30   EXPECT_EQ(Type::getInt16Ty(getGlobalContext()), (TypeBuilder<int16_t, false>::get(getGlobalContext())));
  31   EXPECT_EQ(Type::getInt16Ty(getGlobalContext()), (TypeBuilder<uint16_t, false>::get(getGlobalContext())));
  32   EXPECT_EQ(Type::getInt32Ty(getGlobalContext()), (TypeBuilder<int32_t, false>::get(getGlobalContext())));
  33   EXPECT_EQ(Type::getInt32Ty(getGlobalContext()), (TypeBuilder<uint32_t, false>::get(getGlobalContext())));
  34   EXPECT_EQ(Type::getInt64Ty(getGlobalContext()), (TypeBuilder<int64_t, false>::get(getGlobalContext())));
  35   EXPECT_EQ(Type::getInt64Ty(getGlobalContext()), (TypeBuilder<uint64_t, false>::get(getGlobalContext())));
  36
  37   EXPECT_EQ(IntegerType::get(getGlobalContext(), sizeof(size_t) * CHAR_BIT),
  38             (TypeBuilder<size_t, false>::get(getGlobalContext())));
  39   EXPECT_EQ(IntegerType::get(getGlobalContext(), sizeof(ptrdiff_t) * CHAR_BIT),
  40             (TypeBuilder<ptrdiff_t, false>::get(getGlobalContext())));
  41 }
  42
  43 TEST(TypeBuilderTest, CrossCompilableIntegers) {
  44   EXPECT_EQ(IntegerType::get(getGlobalContext(), 1), (TypeBuilder<types::i<1>, true>::get(getGlobalContext())));
  45   EXPECT_EQ(IntegerType::get(getGlobalContext(), 1), (TypeBuilder<types::i<1>, false>::get(getGlobalContext())));
  46   EXPECT_EQ(IntegerType::get(getGlobalContext(), 72), (TypeBuilder<types::i<72>, true>::get(getGlobalContext())));
  47   EXPECT_EQ(IntegerType::get(getGlobalContext(), 72), (TypeBuilder<types::i<72>, false>::get(getGlobalContext())));
  48 }
  49
  50 TEST(TypeBuilderTest, Float) {
  51   EXPECT_EQ(Type::getFloatTy(getGlobalContext()), (TypeBuilder<float, false>::get(getGlobalContext())));
  52   EXPECT_EQ(Type::getDoubleTy(getGlobalContext()), (TypeBuilder<double, false>::get(getGlobalContext())));
  53   // long double isn't supported yet.
  54   EXPECT_EQ(Type::getFloatTy(getGlobalContext()), (TypeBuilder<types::ieee_float, true>::get(getGlobalContext())));
  55   EXPECT_EQ(Type::getFloatTy(getGlobalContext()), (TypeBuilder<types::ieee_float, false>::get(getGlobalContext())));
  56   EXPECT_EQ(Type::getDoubleTy(getGlobalContext()), (TypeBuilder<types::ieee_double, true>::get(getGlobalContext())));
  57   EXPECT_EQ(Type::getDoubleTy(getGlobalContext()), (TypeBuilder<types::ieee_double, false>::get(getGlobalContext())));
  58   EXPECT_EQ(Type::getX86_FP80Ty(getGlobalContext()), (TypeBuilder<types::x86_fp80, true>::get(getGlobalContext())));
  59   EXPECT_EQ(Type::getX86_FP80Ty(getGlobalContext()), (TypeBuilder<types::x86_fp80, false>::get(getGlobalContext())));
  60   EXPECT_EQ(Type::getFP128Ty(getGlobalContext()), (TypeBuilder<types::fp128, true>::get(getGlobalContext())));
  61   EXPECT_EQ(Type::getFP128Ty(getGlobalContext()), (TypeBuilder<types::fp128, false>::get(getGlobalContext())));
  62   EXPECT_EQ(Type::getPPC_FP128Ty(getGlobalContext()), (TypeBuilder<types::ppc_fp128, true>::get(getGlobalContext())));
  63   EXPECT_EQ(Type::getPPC_FP128Ty(getGlobalContext()), (TypeBuilder<types::ppc_fp128, false>::get(getGlobalContext())));
  64 }
  65
  66 TEST(TypeBuilderTest, Derived) {
  67   EXPECT_EQ(PointerType::getUnqual(PointerType::getUnqual(Type::getInt8Ty(getGlobalContext()))),
  68             (TypeBuilder<int8_t**, false>::get(getGlobalContext())));
  69   EXPECT_EQ(ArrayType::get(Type::getInt8Ty(getGlobalContext()), 7),
  70             (TypeBuilder<int8_t[7], false>::get(getGlobalContext())));
  71   EXPECT_EQ(ArrayType::get(Type::getInt8Ty(getGlobalContext()), 0),
  72             (TypeBuilder<int8_t[], false>::get(getGlobalContext())));
  73
  74   EXPECT_EQ(PointerType::getUnqual(PointerType::getUnqual(Type::getInt8Ty(getGlobalContext()))),
  75             (TypeBuilder<types::i<8>**, false>::get(getGlobalContext())));
  76   EXPECT_EQ(ArrayType::get(Type::getInt8Ty(getGlobalContext()), 7),
  77             (TypeBuilder<types::i<8>[7], false>::get(getGlobalContext())));
  78   EXPECT_EQ(ArrayType::get(Type::getInt8Ty(getGlobalContext()), 0),
  79             (TypeBuilder<types::i<8>[], false>::get(getGlobalContext())));
  80
  81   EXPECT_EQ(PointerType::getUnqual(PointerType::getUnqual(Type::getInt8Ty(getGlobalContext()))),
  82             (TypeBuilder<types::i<8>**, true>::get(getGlobalContext())));
  83   EXPECT_EQ(ArrayType::get(Type::getInt8Ty(getGlobalContext()), 7),
  84             (TypeBuilder<types::i<8>[7], true>::get(getGlobalContext())));
  85   EXPECT_EQ(ArrayType::get(Type::getInt8Ty(getGlobalContext()), 0),
  86             (TypeBuilder<types::i<8>[], true>::get(getGlobalContext())));
  87
  88
  89   EXPECT_EQ(Type::getInt8Ty(getGlobalContext()),
  90             (TypeBuilder<const int8_t, false>::get(getGlobalContext())));
  91   EXPECT_EQ(Type::getInt8Ty(getGlobalContext()),
  92             (TypeBuilder<volatile int8_t, false>::get(getGlobalContext())));
  93   EXPECT_EQ(Type::getInt8Ty(getGlobalContext()),
  94             (TypeBuilder<const volatile int8_t, false>::get(getGlobalContext())));
  95
  96   EXPECT_EQ(Type::getInt8Ty(getGlobalContext()),
  97             (TypeBuilder<const types::i<8>, false>::get(getGlobalContext())));
  98   EXPECT_EQ(Type::getInt8Ty(getGlobalContext()),
  99             (TypeBuilder<volatile types::i<8>, false>::get(getGlobalContext())));
 100   EXPECT_EQ(Type::getInt8Ty(getGlobalContext()),
 101             (TypeBuilder<const volatile types::i<8>, false>::get(getGlobalContext())));
 102
 103   EXPECT_EQ(Type::getInt8Ty(getGlobalContext()),
 104             (TypeBuilder<const types::i<8>, true>::get(getGlobalContext())));
 105   EXPECT_EQ(Type::getInt8Ty(getGlobalContext()),
 106             (TypeBuilder<volatile types::i<8>, true>::get(getGlobalContext())));
 107   EXPECT_EQ(Type::getInt8Ty(getGlobalContext()),
 108             (TypeBuilder<const volatile types::i<8>, true>::get(getGlobalContext())));
 109
 110   EXPECT_EQ(PointerType::getUnqual(Type::getInt8Ty(getGlobalContext())),
 111             (TypeBuilder<const volatile int8_t*const volatile, false>::get(getGlobalContext())));
 112 }
 113
 114 TEST(TypeBuilderTest, Functions) {
 115   std::vector<const Type*> params;
 116   EXPECT_EQ(FunctionType::get(Type::getVoidTy(getGlobalContext()), params, false),
 117             (TypeBuilder<void(), true>::get(getGlobalContext())));
 118   EXPECT_EQ(FunctionType::get(Type::getInt8Ty(getGlobalContext()), params, true),
 119             (TypeBuilder<int8_t(...), false>::get(getGlobalContext())));
 120   params.push_back(TypeBuilder<int32_t*, false>::get(getGlobalContext()));
 121   EXPECT_EQ(FunctionType::get(Type::getInt8Ty(getGlobalContext()), params, false),
 122             (TypeBuilder<int8_t(const int32_t*), false>::get(getGlobalContext())));
 123   EXPECT_EQ(FunctionType::get(Type::getInt8Ty(getGlobalContext()), params, true),
 124             (TypeBuilder<int8_t(const int32_t*, ...), false>::get(getGlobalContext())));
 125   params.push_back(TypeBuilder<char*, false>::get(getGlobalContext()));
 126   EXPECT_EQ(FunctionType::get(Type::getInt8Ty(getGlobalContext()), params, false),
 127             (TypeBuilder<int8_t(int32_t*, void*), false>::get(getGlobalContext())));
 128   EXPECT_EQ(FunctionType::get(Type::getInt8Ty(getGlobalContext()), params, true),
 129             (TypeBuilder<int8_t(int32_t*, char*, ...), false>::get(getGlobalContext())));
 130   params.push_back(TypeBuilder<char, false>::get(getGlobalContext()));
 131   EXPECT_EQ(FunctionType::get(Type::getInt8Ty(getGlobalContext()), params, false),
 132             (TypeBuilder<int8_t(int32_t*, void*, char), false>::get(getGlobalContext())));
 133   EXPECT_EQ(FunctionType::get(Type::getInt8Ty(getGlobalContext()), params, true),
 134             (TypeBuilder<int8_t(int32_t*, char*, char, ...), false>::get(getGlobalContext())));
 135   params.push_back(TypeBuilder<char, false>::get(getGlobalContext()));
 136   EXPECT_EQ(FunctionType::get(Type::getInt8Ty(getGlobalContext()), params, false),
 137             (TypeBuilder<int8_t(int32_t*, void*, char, char), false>::get(getGlobalContext())));
 138   EXPECT_EQ(FunctionType::get(Type::getInt8Ty(getGlobalContext()), params, true),
 139             (TypeBuilder<int8_t(int32_t*, char*, char, char, ...),
 140                          false>::get(getGlobalContext())));
 141   params.push_back(TypeBuilder<char, false>::get(getGlobalContext()));
 142   EXPECT_EQ(FunctionType::get(Type::getInt8Ty(getGlobalContext()), params, false),
 143             (TypeBuilder<int8_t(int32_t*, void*, char, char, char),
 144                          false>::get(getGlobalContext())));
 145   EXPECT_EQ(FunctionType::get(Type::getInt8Ty(getGlobalContext()), params, true),
 146             (TypeBuilder<int8_t(int32_t*, char*, char, char, char, ...),
 147                          false>::get(getGlobalContext())));
 148 }
 149
 150 TEST(TypeBuilderTest, Context) {
 151   // We used to cache TypeBuilder results in static local variables.  This
 152   // produced the same type for different contexts, which of course broke
 153   // things.
 154   LLVMContext context1;
 155   EXPECT_EQ(&context1,
 156             &(TypeBuilder<types::i<1>, true>::get(context1))->getContext());
 157   LLVMContext context2;
 158   EXPECT_EQ(&context2,
 159             &(TypeBuilder<types::i<1>, true>::get(context2))->getContext());
 160 }
 161
 162 class MyType {
 163   int a;
 164   int *b;
 165   void *array[1];
 166 };
 167
 168 class MyPortableType {
 169   int32_t a;
 170   int32_t *b;
 171   void *array[1];
 172 };
 173
 174 }  // anonymous namespace
 175
 176 namespace llvm {
 177 template<bool cross> class TypeBuilder<MyType, cross> {
 178 public:
 179   static const StructType *get(LLVMContext &Context) {
 180     // Using the static result variable ensures that the type is
 181     // only looked up once.
 182     std::vector<const Type*> st;
 183     st.push_back(TypeBuilder<int, cross>::get(Context));
 184     st.push_back(TypeBuilder<int*, cross>::get(Context));
 185     st.push_back(TypeBuilder<void*[], cross>::get(Context));
 186     static const StructType *const result = StructType::get(Context, st);
 187     return result;
 188   }
 189
 190   // You may find this a convenient place to put some constants
 191   // to help with getelementptr.  They don't have any effect on
 192   // the operation of TypeBuilder.
 193   enum Fields {
 194     FIELD_A,
 195     FIELD_B,
 196     FIELD_ARRAY
 197   };
 198 };
 199
 200 template<bool cross> class TypeBuilder<MyPortableType, cross> {
 201 public:
 202   static const StructType *get(LLVMContext &Context) {
 203     // Using the static result variable ensures that the type is
 204     // only looked up once.
 205     std::vector<const Type*> st;
 206     st.push_back(TypeBuilder<types::i<32>, cross>::get(Context));
 207     st.push_back(TypeBuilder<types::i<32>*, cross>::get(Context));
 208     st.push_back(TypeBuilder<types::i<8>*[], cross>::get(Context));
 209     static const StructType *const result = StructType::get(Context, st);
 210     return result;
 211   }
 212
 213   // You may find this a convenient place to put some constants
 214   // to help with getelementptr.  They don't have any effect on
 215   // the operation of TypeBuilder.
 216   enum Fields {
 217     FIELD_A,
 218     FIELD_B,
 219     FIELD_ARRAY
 220   };
 221 };
 222 }  // namespace llvm
 223 namespace {
 224
 225 TEST(TypeBuilderTest, Extensions) {
 226   EXPECT_EQ(PointerType::getUnqual(StructType::get(getGlobalContext(),
 227                                      TypeBuilder<int, false>::get(getGlobalContext()),
 228                                      TypeBuilder<int*, false>::get(getGlobalContext()),
 229                                      TypeBuilder<void*[], false>::get(getGlobalContext()),
 230                                      NULL)),
 231             (TypeBuilder<MyType*, false>::get(getGlobalContext())));
 232   EXPECT_EQ(PointerType::getUnqual(StructType::get(getGlobalContext(),
 233                                      TypeBuilder<types::i<32>, false>::get(getGlobalContext()),
 234                                      TypeBuilder<types::i<32>*, false>::get(getGlobalContext()),
 235                                      TypeBuilder<types::i<8>*[], false>::get(getGlobalContext()),
 236                                      NULL)),
 237             (TypeBuilder<MyPortableType*, false>::get(getGlobalContext())));
 238   EXPECT_EQ(PointerType::getUnqual(StructType::get(getGlobalContext(),
 239                                      TypeBuilder<types::i<32>, false>::get(getGlobalContext()),
 240                                      TypeBuilder<types::i<32>*, false>::get(getGlobalContext()),
 241                                      TypeBuilder<types::i<8>*[], false>::get(getGlobalContext()),
 242                                      NULL)),
 243             (TypeBuilder<MyPortableType*, true>::get(getGlobalContext())));
 244 }
 245
 246 }  // anonymous namespace