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::VoidTy, (TypeBuilder<void, true>::get(getGlobalContext())));
  21   EXPECT_EQ(Type::VoidTy, (TypeBuilder<void, false>::get(getGlobalContext())));
  22   // Special case for C compatibility:
  23   EXPECT_EQ(PointerType::getUnqual(Type::Int8Ty),
  24             (TypeBuilder<void*, false>::get(getGlobalContext())));
  25 }
  26
  27 TEST(TypeBuilderTest, HostIntegers) {
  28   EXPECT_EQ(Type::Int8Ty, (TypeBuilder<int8_t, false>::get(getGlobalContext())));
  29   EXPECT_EQ(Type::Int8Ty, (TypeBuilder<uint8_t, false>::get(getGlobalContext())));
  30   EXPECT_EQ(Type::Int16Ty, (TypeBuilder<int16_t, false>::get(getGlobalContext())));
  31   EXPECT_EQ(Type::Int16Ty, (TypeBuilder<uint16_t, false>::get(getGlobalContext())));
  32   EXPECT_EQ(Type::Int32Ty, (TypeBuilder<int32_t, false>::get(getGlobalContext())));
  33   EXPECT_EQ(Type::Int32Ty, (TypeBuilder<uint32_t, false>::get(getGlobalContext())));
  34   EXPECT_EQ(Type::Int64Ty, (TypeBuilder<int64_t, false>::get(getGlobalContext())));
  35   EXPECT_EQ(Type::Int64Ty, (TypeBuilder<uint64_t, false>::get(getGlobalContext())));
  36
  37   EXPECT_EQ(IntegerType::get(sizeof(size_t) * CHAR_BIT),
  38             (TypeBuilder<size_t, false>::get(getGlobalContext())));
  39   EXPECT_EQ(IntegerType::get(sizeof(ptrdiff_t) * CHAR_BIT),
  40             (TypeBuilder<ptrdiff_t, false>::get(getGlobalContext())));
  41 }
  42
  43 TEST(TypeBuilderTest, CrossCompilableIntegers) {
  44   EXPECT_EQ(IntegerType::get(1), (TypeBuilder<types::i<1>, true>::get(getGlobalContext())));
  45   EXPECT_EQ(IntegerType::get(1), (TypeBuilder<types::i<1>, false>::get(getGlobalContext())));
  46   EXPECT_EQ(IntegerType::get(72), (TypeBuilder<types::i<72>, true>::get(getGlobalContext())));
  47   EXPECT_EQ(IntegerType::get(72), (TypeBuilder<types::i<72>, false>::get(getGlobalContext())));
  48 }
  49
  50 TEST(TypeBuilderTest, Float) {
  51   EXPECT_EQ(Type::FloatTy, (TypeBuilder<float, false>::get(getGlobalContext())));
  52   EXPECT_EQ(Type::DoubleTy, (TypeBuilder<double, false>::get(getGlobalContext())));
  53   // long double isn't supported yet.
  54   EXPECT_EQ(Type::FloatTy, (TypeBuilder<types::ieee_float, true>::get(getGlobalContext())));
  55   EXPECT_EQ(Type::FloatTy, (TypeBuilder<types::ieee_float, false>::get(getGlobalContext())));
  56   EXPECT_EQ(Type::DoubleTy, (TypeBuilder<types::ieee_double, true>::get(getGlobalContext())));
  57   EXPECT_EQ(Type::DoubleTy, (TypeBuilder<types::ieee_double, false>::get(getGlobalContext())));
  58   EXPECT_EQ(Type::X86_FP80Ty, (TypeBuilder<types::x86_fp80, true>::get(getGlobalContext())));
  59   EXPECT_EQ(Type::X86_FP80Ty, (TypeBuilder<types::x86_fp80, false>::get(getGlobalContext())));
  60   EXPECT_EQ(Type::FP128Ty, (TypeBuilder<types::fp128, true>::get(getGlobalContext())));
  61   EXPECT_EQ(Type::FP128Ty, (TypeBuilder<types::fp128, false>::get(getGlobalContext())));
  62   EXPECT_EQ(Type::PPC_FP128Ty, (TypeBuilder<types::ppc_fp128, true>::get(getGlobalContext())));
  63   EXPECT_EQ(Type::PPC_FP128Ty, (TypeBuilder<types::ppc_fp128, false>::get(getGlobalContext())));
  64 }
  65
  66 TEST(TypeBuilderTest, Derived) {
  67   EXPECT_EQ(PointerType::getUnqual(PointerType::getUnqual(Type::Int8Ty)),
  68             (TypeBuilder<int8_t**, false>::get(getGlobalContext())));
  69   EXPECT_EQ(ArrayType::get(Type::Int8Ty, 7),
  70             (TypeBuilder<int8_t[7], false>::get(getGlobalContext())));
  71   EXPECT_EQ(ArrayType::get(Type::Int8Ty, 0),
  72             (TypeBuilder<int8_t[], false>::get(getGlobalContext())));
  73
  74   EXPECT_EQ(PointerType::getUnqual(PointerType::getUnqual(Type::Int8Ty)),
  75             (TypeBuilder<types::i<8>**, false>::get(getGlobalContext())));
  76   EXPECT_EQ(ArrayType::get(Type::Int8Ty, 7),
  77             (TypeBuilder<types::i<8>[7], false>::get(getGlobalContext())));
  78   EXPECT_EQ(ArrayType::get(Type::Int8Ty, 0),
  79             (TypeBuilder<types::i<8>[], false>::get(getGlobalContext())));
  80
  81   EXPECT_EQ(PointerType::getUnqual(PointerType::getUnqual(Type::Int8Ty)),
  82             (TypeBuilder<types::i<8>**, true>::get(getGlobalContext())));
  83   EXPECT_EQ(ArrayType::get(Type::Int8Ty, 7),
  84             (TypeBuilder<types::i<8>[7], true>::get(getGlobalContext())));
  85   EXPECT_EQ(ArrayType::get(Type::Int8Ty, 0),
  86             (TypeBuilder<types::i<8>[], true>::get(getGlobalContext())));
  87
  88
  89   EXPECT_EQ(Type::Int8Ty,
  90             (TypeBuilder<const int8_t, false>::get(getGlobalContext())));
  91   EXPECT_EQ(Type::Int8Ty,
  92             (TypeBuilder<volatile int8_t, false>::get(getGlobalContext())));
  93   EXPECT_EQ(Type::Int8Ty,
  94             (TypeBuilder<const volatile int8_t, false>::get(getGlobalContext())));
  95
  96   EXPECT_EQ(Type::Int8Ty,
  97             (TypeBuilder<const types::i<8>, false>::get(getGlobalContext())));
  98   EXPECT_EQ(Type::Int8Ty,
  99             (TypeBuilder<volatile types::i<8>, false>::get(getGlobalContext())));
 100   EXPECT_EQ(Type::Int8Ty,
 101             (TypeBuilder<const volatile types::i<8>, false>::get(getGlobalContext())));
 102
 103   EXPECT_EQ(Type::Int8Ty,
 104             (TypeBuilder<const types::i<8>, true>::get(getGlobalContext())));
 105   EXPECT_EQ(Type::Int8Ty,
 106             (TypeBuilder<volatile types::i<8>, true>::get(getGlobalContext())));
 107   EXPECT_EQ(Type::Int8Ty,
 108             (TypeBuilder<const volatile types::i<8>, true>::get(getGlobalContext())));
 109
 110   EXPECT_EQ(PointerType::getUnqual(Type::Int8Ty),
 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::VoidTy, params, false),
 117             (TypeBuilder<void(), true>::get(getGlobalContext())));
 118   EXPECT_EQ(FunctionType::get(Type::Int8Ty, 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::Int8Ty, params, false),
 122             (TypeBuilder<int8_t(const int32_t*), false>::get(getGlobalContext())));
 123   EXPECT_EQ(FunctionType::get(Type::Int8Ty, 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::Int8Ty, params, false),
 127             (TypeBuilder<int8_t(int32_t*, void*), false>::get(getGlobalContext())));
 128   EXPECT_EQ(FunctionType::get(Type::Int8Ty, 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::Int8Ty, params, false),
 132             (TypeBuilder<int8_t(int32_t*, void*, char), false>::get(getGlobalContext())));
 133   EXPECT_EQ(FunctionType::get(Type::Int8Ty, 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::Int8Ty, params, false),
 137             (TypeBuilder<int8_t(int32_t*, void*, char, char), false>::get(getGlobalContext())));
 138   EXPECT_EQ(FunctionType::get(Type::Int8Ty, 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::Int8Ty, params, false),
 143             (TypeBuilder<int8_t(int32_t*, void*, char, char, char),
 144                          false>::get(getGlobalContext())));
 145   EXPECT_EQ(FunctionType::get(Type::Int8Ty, params, true),
 146             (TypeBuilder<int8_t(int32_t*, char*, char, char, char, ...),
 147                          false>::get(getGlobalContext())));
 148 }
 149
 150 class MyType {
 151   int a;
 152   int *b;
 153   void *array[1];
 154 };
 155
 156 class MyPortableType {
 157   int32_t a;
 158   int32_t *b;
 159   void *array[1];
 160 };
 161
 162 }  // anonymous namespace
 163
 164 namespace llvm {
 165 template<bool cross> class TypeBuilder<MyType, cross> {
 166 public:
 167   static const StructType *get(LLVMContext &Context) {
 168     // Using the static result variable ensures that the type is
 169     // only looked up once.
 170     std::vector<const Type*> st;
 171     st.push_back(TypeBuilder<int, cross>::get(Context));
 172     st.push_back(TypeBuilder<int*, cross>::get(Context));
 173     st.push_back(TypeBuilder<void*[], cross>::get(Context));
 174     static const StructType *const result = Context.getStructType(st);
 175     return result;
 176   }
 177
 178   // You may find this a convenient place to put some constants
 179   // to help with getelementptr.  They don't have any effect on
 180   // the operation of TypeBuilder.
 181   enum Fields {
 182     FIELD_A,
 183     FIELD_B,
 184     FIELD_ARRAY
 185   };
 186 };
 187
 188 template<bool cross> class TypeBuilder<MyPortableType, cross> {
 189 public:
 190   static const StructType *get(LLVMContext &Context) {
 191     // Using the static result variable ensures that the type is
 192     // only looked up once.
 193     std::vector<const Type*> st;
 194     st.push_back(TypeBuilder<types::i<32>, cross>::get(Context));
 195     st.push_back(TypeBuilder<types::i<32>*, cross>::get(Context));
 196     st.push_back(TypeBuilder<types::i<8>*[], cross>::get(Context));
 197     static const StructType *const result = Context.getStructType(st);
 198     return result;
 199   }
 200
 201   // You may find this a convenient place to put some constants
 202   // to help with getelementptr.  They don't have any effect on
 203   // the operation of TypeBuilder.
 204   enum Fields {
 205     FIELD_A,
 206     FIELD_B,
 207     FIELD_ARRAY
 208   };
 209 };
 210 }  // namespace llvm
 211 namespace {
 212
 213 TEST(TypeBuilderTest, Extensions) {
 214   EXPECT_EQ(PointerType::getUnqual(StructType::get(
 215                                      TypeBuilder<int, false>::get(getGlobalContext()),
 216                                      TypeBuilder<int*, false>::get(getGlobalContext()),
 217                                      TypeBuilder<void*[], false>::get(getGlobalContext()),
 218                                      NULL)),
 219             (TypeBuilder<MyType*, false>::get(getGlobalContext())));
 220   EXPECT_EQ(PointerType::getUnqual(StructType::get(
 221                                      TypeBuilder<types::i<32>, false>::get(getGlobalContext()),
 222                                      TypeBuilder<types::i<32>*, false>::get(getGlobalContext()),
 223                                      TypeBuilder<types::i<8>*[], false>::get(getGlobalContext()),
 224                                      NULL)),
 225             (TypeBuilder<MyPortableType*, false>::get(getGlobalContext())));
 226   EXPECT_EQ(PointerType::getUnqual(StructType::get(
 227                                      TypeBuilder<types::i<32>, false>::get(getGlobalContext()),
 228                                      TypeBuilder<types::i<32>*, false>::get(getGlobalContext()),
 229                                      TypeBuilder<types::i<8>*[], false>::get(getGlobalContext()),
 230                                      NULL)),
 231             (TypeBuilder<MyPortableType*, true>::get(getGlobalContext())));
 232 }
 233
 234 }  // anonymous namespace