LLVM  3.7.0
DerivedTypes.h
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1 //===-- llvm/DerivedTypes.h - Classes for handling data types ---*- C++ -*-===//
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 // This file contains the declarations of classes that represent "derived
11 // types". These are things like "arrays of x" or "structure of x, y, z" or
12 // "function returning x taking (y,z) as parameters", etc...
13 //
14 // The implementations of these classes live in the Type.cpp file.
15 //
16 //===----------------------------------------------------------------------===//
17 
18 #ifndef LLVM_IR_DERIVEDTYPES_H
19 #define LLVM_IR_DERIVEDTYPES_H
20 
21 #include "llvm/IR/Type.h"
22 #include "llvm/Support/Compiler.h"
23 #include "llvm/Support/DataTypes.h"
24 
25 namespace llvm {
26 
27 class Value;
28 class APInt;
29 class LLVMContext;
30 template<typename T> class ArrayRef;
31 class StringRef;
32 
33 /// Class to represent integer types. Note that this class is also used to
34 /// represent the built-in integer types: Int1Ty, Int8Ty, Int16Ty, Int32Ty and
35 /// Int64Ty.
36 /// @brief Integer representation type
37 class IntegerType : public Type {
38  friend class LLVMContextImpl;
39 
40 protected:
41  explicit IntegerType(LLVMContext &C, unsigned NumBits) : Type(C, IntegerTyID){
42  setSubclassData(NumBits);
43  }
44 public:
45  /// This enum is just used to hold constants we need for IntegerType.
46  enum {
47  MIN_INT_BITS = 1, ///< Minimum number of bits that can be specified
48  MAX_INT_BITS = (1<<23)-1 ///< Maximum number of bits that can be specified
49  ///< Note that bit width is stored in the Type classes SubclassData field
50  ///< which has 23 bits. This yields a maximum bit width of 8,388,607 bits.
51  };
52 
53  /// This static method is the primary way of constructing an IntegerType.
54  /// If an IntegerType with the same NumBits value was previously instantiated,
55  /// that instance will be returned. Otherwise a new one will be created. Only
56  /// one instance with a given NumBits value is ever created.
57  /// @brief Get or create an IntegerType instance.
58  static IntegerType *get(LLVMContext &C, unsigned NumBits);
59 
60  /// @brief Get the number of bits in this IntegerType
61  unsigned getBitWidth() const { return getSubclassData(); }
62 
63  /// getBitMask - Return a bitmask with ones set for all of the bits
64  /// that can be set by an unsigned version of this type. This is 0xFF for
65  /// i8, 0xFFFF for i16, etc.
66  uint64_t getBitMask() const {
67  return ~uint64_t(0UL) >> (64-getBitWidth());
68  }
69 
70  /// getSignBit - Return a uint64_t with just the most significant bit set (the
71  /// sign bit, if the value is treated as a signed number).
72  uint64_t getSignBit() const {
73  return 1ULL << (getBitWidth()-1);
74  }
75 
76  /// For example, this is 0xFF for an 8 bit integer, 0xFFFF for i16, etc.
77  /// @returns a bit mask with ones set for all the bits of this type.
78  /// @brief Get a bit mask for this type.
79  APInt getMask() const;
80 
81  /// This method determines if the width of this IntegerType is a power-of-2
82  /// in terms of 8 bit bytes.
83  /// @returns true if this is a power-of-2 byte width.
84  /// @brief Is this a power-of-2 byte-width IntegerType ?
85  bool isPowerOf2ByteWidth() const;
86 
87  /// Methods for support type inquiry through isa, cast, and dyn_cast.
88  static inline bool classof(const Type *T) {
89  return T->getTypeID() == IntegerTyID;
90  }
91 };
92 
93 
94 /// FunctionType - Class to represent function types
95 ///
96 class FunctionType : public Type {
97  FunctionType(const FunctionType &) = delete;
98  const FunctionType &operator=(const FunctionType &) = delete;
99  FunctionType(Type *Result, ArrayRef<Type*> Params, bool IsVarArgs);
100 
101 public:
102  /// FunctionType::get - This static method is the primary way of constructing
103  /// a FunctionType.
104  ///
105  static FunctionType *get(Type *Result,
106  ArrayRef<Type*> Params, bool isVarArg);
107 
108  /// FunctionType::get - Create a FunctionType taking no parameters.
109  ///
110  static FunctionType *get(Type *Result, bool isVarArg);
111 
112  /// isValidReturnType - Return true if the specified type is valid as a return
113  /// type.
114  static bool isValidReturnType(Type *RetTy);
115 
116  /// isValidArgumentType - Return true if the specified type is valid as an
117  /// argument type.
118  static bool isValidArgumentType(Type *ArgTy);
119 
120  bool isVarArg() const { return getSubclassData()!=0; }
121  Type *getReturnType() const { return ContainedTys[0]; }
122 
124  param_iterator param_begin() const { return ContainedTys + 1; }
127  return makeArrayRef(param_begin(), param_end());
128  }
129 
130  /// Parameter type accessors.
131  Type *getParamType(unsigned i) const { return ContainedTys[i+1]; }
132 
133  /// getNumParams - Return the number of fixed parameters this function type
134  /// requires. This does not consider varargs.
135  ///
136  unsigned getNumParams() const { return NumContainedTys - 1; }
137 
138  /// Methods for support type inquiry through isa, cast, and dyn_cast.
139  static inline bool classof(const Type *T) {
140  return T->getTypeID() == FunctionTyID;
141  }
142 };
143 static_assert(AlignOf<FunctionType>::Alignment >= AlignOf<Type *>::Alignment,
144  "Alignment sufficient for objects appended to FunctionType");
145 
146 /// CompositeType - Common super class of ArrayType, StructType, PointerType
147 /// and VectorType.
148 class CompositeType : public Type {
149 protected:
150  explicit CompositeType(LLVMContext &C, TypeID tid) : Type(C, tid) { }
151 public:
152 
153  /// getTypeAtIndex - Given an index value into the type, return the type of
154  /// the element.
155  ///
156  Type *getTypeAtIndex(const Value *V);
157  Type *getTypeAtIndex(unsigned Idx);
158  bool indexValid(const Value *V) const;
159  bool indexValid(unsigned Idx) const;
160 
161  /// Methods for support type inquiry through isa, cast, and dyn_cast.
162  static inline bool classof(const Type *T) {
163  return T->getTypeID() == ArrayTyID ||
164  T->getTypeID() == StructTyID ||
165  T->getTypeID() == PointerTyID ||
166  T->getTypeID() == VectorTyID;
167  }
168 };
169 
170 
171 /// StructType - Class to represent struct types. There are two different kinds
172 /// of struct types: Literal structs and Identified structs.
173 ///
174 /// Literal struct types (e.g. { i32, i32 }) are uniqued structurally, and must
175 /// always have a body when created. You can get one of these by using one of
176 /// the StructType::get() forms.
177 ///
178 /// Identified structs (e.g. %foo or %42) may optionally have a name and are not
179 /// uniqued. The names for identified structs are managed at the LLVMContext
180 /// level, so there can only be a single identified struct with a given name in
181 /// a particular LLVMContext. Identified structs may also optionally be opaque
182 /// (have no body specified). You get one of these by using one of the
183 /// StructType::create() forms.
184 ///
185 /// Independent of what kind of struct you have, the body of a struct type are
186 /// laid out in memory consequtively with the elements directly one after the
187 /// other (if the struct is packed) or (if not packed) with padding between the
188 /// elements as defined by DataLayout (which is required to match what the code
189 /// generator for a target expects).
190 ///
191 class StructType : public CompositeType {
192  StructType(const StructType &) = delete;
193  const StructType &operator=(const StructType &) = delete;
195  : CompositeType(C, StructTyID), SymbolTableEntry(nullptr) {}
196  enum {
197  /// This is the contents of the SubClassData field.
198  SCDB_HasBody = 1,
199  SCDB_Packed = 2,
200  SCDB_IsLiteral = 4,
201  SCDB_IsSized = 8
202  };
203 
204  /// SymbolTableEntry - For a named struct that actually has a name, this is a
205  /// pointer to the symbol table entry (maintained by LLVMContext) for the
206  /// struct. This is null if the type is an literal struct or if it is
207  /// a identified type that has an empty name.
208  ///
209  void *SymbolTableEntry;
210 public:
211 
212  /// StructType::create - This creates an identified struct.
213  static StructType *create(LLVMContext &Context, StringRef Name);
214  static StructType *create(LLVMContext &Context);
215 
216  static StructType *create(ArrayRef<Type*> Elements,
217  StringRef Name,
218  bool isPacked = false);
219  static StructType *create(ArrayRef<Type*> Elements);
220  static StructType *create(LLVMContext &Context,
221  ArrayRef<Type*> Elements,
222  StringRef Name,
223  bool isPacked = false);
224  static StructType *create(LLVMContext &Context, ArrayRef<Type*> Elements);
225  static StructType *create(StringRef Name, Type *elt1, ...) LLVM_END_WITH_NULL;
226 
227  /// StructType::get - This static method is the primary way to create a
228  /// literal StructType.
229  static StructType *get(LLVMContext &Context, ArrayRef<Type*> Elements,
230  bool isPacked = false);
231 
232  /// StructType::get - Create an empty structure type.
233  ///
234  static StructType *get(LLVMContext &Context, bool isPacked = false);
235 
236  /// StructType::get - This static method is a convenience method for creating
237  /// structure types by specifying the elements as arguments. Note that this
238  /// method always returns a non-packed struct, and requires at least one
239  /// element type.
240  static StructType *get(Type *elt1, ...) LLVM_END_WITH_NULL;
241 
242  bool isPacked() const { return (getSubclassData() & SCDB_Packed) != 0; }
243 
244  /// isLiteral - Return true if this type is uniqued by structural
245  /// equivalence, false if it is a struct definition.
246  bool isLiteral() const { return (getSubclassData() & SCDB_IsLiteral) != 0; }
247 
248  /// isOpaque - Return true if this is a type with an identity that has no body
249  /// specified yet. These prints as 'opaque' in .ll files.
250  bool isOpaque() const { return (getSubclassData() & SCDB_HasBody) == 0; }
251 
252  /// isSized - Return true if this is a sized type.
253  bool isSized(SmallPtrSetImpl<const Type*> *Visited = nullptr) const;
254 
255  /// hasName - Return true if this is a named struct that has a non-empty name.
256  bool hasName() const { return SymbolTableEntry != nullptr; }
257 
258  /// getName - Return the name for this struct type if it has an identity.
259  /// This may return an empty string for an unnamed struct type. Do not call
260  /// this on an literal type.
261  StringRef getName() const;
262 
263  /// setName - Change the name of this type to the specified name, or to a name
264  /// with a suffix if there is a collision. Do not call this on an literal
265  /// type.
266  void setName(StringRef Name);
267 
268  /// setBody - Specify a body for an opaque identified type.
269  void setBody(ArrayRef<Type*> Elements, bool isPacked = false);
270  void setBody(Type *elt1, ...) LLVM_END_WITH_NULL;
271 
272  /// isValidElementType - Return true if the specified type is valid as a
273  /// element type.
274  static bool isValidElementType(Type *ElemTy);
275 
276 
277  // Iterator access to the elements.
279  element_iterator element_begin() const { return ContainedTys; }
281  ArrayRef<Type *> const elements() const {
282  return makeArrayRef(element_begin(), element_end());
283  }
284 
285  /// isLayoutIdentical - Return true if this is layout identical to the
286  /// specified struct.
287  bool isLayoutIdentical(StructType *Other) const;
288 
289  /// Random access to the elements
290  unsigned getNumElements() const { return NumContainedTys; }
291  Type *getElementType(unsigned N) const {
292  assert(N < NumContainedTys && "Element number out of range!");
293  return ContainedTys[N];
294  }
295 
296  /// Methods for support type inquiry through isa, cast, and dyn_cast.
297  static inline bool classof(const Type *T) {
298  return T->getTypeID() == StructTyID;
299  }
300 };
301 
302 /// SequentialType - This is the superclass of the array, pointer and vector
303 /// type classes. All of these represent "arrays" in memory. The array type
304 /// represents a specifically sized array, pointer types are unsized/unknown
305 /// size arrays, vector types represent specifically sized arrays that
306 /// allow for use of SIMD instructions. SequentialType holds the common
307 /// features of all, which stem from the fact that all three lay their
308 /// components out in memory identically.
309 ///
311  Type *ContainedType; ///< Storage for the single contained type.
312  SequentialType(const SequentialType &) = delete;
313  const SequentialType &operator=(const SequentialType &) = delete;
314 
315 protected:
316  SequentialType(TypeID TID, Type *ElType)
317  : CompositeType(ElType->getContext(), TID), ContainedType(ElType) {
318  ContainedTys = &ContainedType;
319  NumContainedTys = 1;
320  }
321 
322 public:
323  Type *getElementType() const { return ContainedTys[0]; }
324 
325  /// Methods for support type inquiry through isa, cast, and dyn_cast.
326  static inline bool classof(const Type *T) {
327  return T->getTypeID() == ArrayTyID ||
328  T->getTypeID() == PointerTyID ||
329  T->getTypeID() == VectorTyID;
330  }
331 };
332 
333 
334 /// ArrayType - Class to represent array types.
335 ///
336 class ArrayType : public SequentialType {
337  uint64_t NumElements;
338 
339  ArrayType(const ArrayType &) = delete;
340  const ArrayType &operator=(const ArrayType &) = delete;
341  ArrayType(Type *ElType, uint64_t NumEl);
342 public:
343  /// ArrayType::get - This static method is the primary way to construct an
344  /// ArrayType
345  ///
346  static ArrayType *get(Type *ElementType, uint64_t NumElements);
347 
348  /// isValidElementType - Return true if the specified type is valid as a
349  /// element type.
350  static bool isValidElementType(Type *ElemTy);
351 
352  uint64_t getNumElements() const { return NumElements; }
353 
354  /// Methods for support type inquiry through isa, cast, and dyn_cast.
355  static inline bool classof(const Type *T) {
356  return T->getTypeID() == ArrayTyID;
357  }
358 };
359 
360 /// VectorType - Class to represent vector types.
361 ///
362 class VectorType : public SequentialType {
363  unsigned NumElements;
364 
365  VectorType(const VectorType &) = delete;
366  const VectorType &operator=(const VectorType &) = delete;
367  VectorType(Type *ElType, unsigned NumEl);
368 public:
369  /// VectorType::get - This static method is the primary way to construct an
370  /// VectorType.
371  ///
372  static VectorType *get(Type *ElementType, unsigned NumElements);
373 
374  /// VectorType::getInteger - This static method gets a VectorType with the
375  /// same number of elements as the input type, and the element type is an
376  /// integer type of the same width as the input element type.
377  ///
379  unsigned EltBits = VTy->getElementType()->getPrimitiveSizeInBits();
380  assert(EltBits && "Element size must be of a non-zero size");
381  Type *EltTy = IntegerType::get(VTy->getContext(), EltBits);
382  return VectorType::get(EltTy, VTy->getNumElements());
383  }
384 
385  /// VectorType::getExtendedElementVectorType - This static method is like
386  /// getInteger except that the element types are twice as wide as the
387  /// elements in the input type.
388  ///
390  unsigned EltBits = VTy->getElementType()->getPrimitiveSizeInBits();
391  Type *EltTy = IntegerType::get(VTy->getContext(), EltBits * 2);
392  return VectorType::get(EltTy, VTy->getNumElements());
393  }
394 
395  /// VectorType::getTruncatedElementVectorType - This static method is like
396  /// getInteger except that the element types are half as wide as the
397  /// elements in the input type.
398  ///
400  unsigned EltBits = VTy->getElementType()->getPrimitiveSizeInBits();
401  assert((EltBits & 1) == 0 &&
402  "Cannot truncate vector element with odd bit-width");
403  Type *EltTy = IntegerType::get(VTy->getContext(), EltBits / 2);
404  return VectorType::get(EltTy, VTy->getNumElements());
405  }
406 
407  /// VectorType::getHalfElementsVectorType - This static method returns
408  /// a VectorType with half as many elements as the input type and the
409  /// same element type.
410  ///
412  unsigned NumElts = VTy->getNumElements();
413  assert ((NumElts & 1) == 0 &&
414  "Cannot halve vector with odd number of elements.");
415  return VectorType::get(VTy->getElementType(), NumElts/2);
416  }
417 
418  /// VectorType::getDoubleElementsVectorType - This static method returns
419  /// a VectorType with twice as many elements as the input type and the
420  /// same element type.
421  ///
423  unsigned NumElts = VTy->getNumElements();
424  return VectorType::get(VTy->getElementType(), NumElts*2);
425  }
426 
427  /// isValidElementType - Return true if the specified type is valid as a
428  /// element type.
429  static bool isValidElementType(Type *ElemTy);
430 
431  /// @brief Return the number of elements in the Vector type.
432  unsigned getNumElements() const { return NumElements; }
433 
434  /// @brief Return the number of bits in the Vector type.
435  /// Returns zero when the vector is a vector of pointers.
436  unsigned getBitWidth() const {
437  return NumElements * getElementType()->getPrimitiveSizeInBits();
438  }
439 
440  /// Methods for support type inquiry through isa, cast, and dyn_cast.
441  static inline bool classof(const Type *T) {
442  return T->getTypeID() == VectorTyID;
443  }
444 };
445 
446 
447 /// PointerType - Class to represent pointers.
448 ///
449 class PointerType : public SequentialType {
450  PointerType(const PointerType &) = delete;
451  const PointerType &operator=(const PointerType &) = delete;
452  explicit PointerType(Type *ElType, unsigned AddrSpace);
453 public:
454  /// PointerType::get - This constructs a pointer to an object of the specified
455  /// type in a numbered address space.
456  static PointerType *get(Type *ElementType, unsigned AddressSpace);
457 
458  /// PointerType::getUnqual - This constructs a pointer to an object of the
459  /// specified type in the generic address space (address space zero).
460  static PointerType *getUnqual(Type *ElementType) {
461  return PointerType::get(ElementType, 0);
462  }
463 
464  /// isValidElementType - Return true if the specified type is valid as a
465  /// element type.
466  static bool isValidElementType(Type *ElemTy);
467 
468  /// Return true if we can load or store from a pointer to this type.
469  static bool isLoadableOrStorableType(Type *ElemTy);
470 
471  /// @brief Return the address space of the Pointer type.
472  inline unsigned getAddressSpace() const { return getSubclassData(); }
473 
474  /// Implement support type inquiry through isa, cast, and dyn_cast.
475  static inline bool classof(const Type *T) {
476  return T->getTypeID() == PointerTyID;
477  }
478 };
479 
480 } // End llvm namespace
481 
482 #endif
CompositeType(LLVMContext &C, TypeID tid)
Definition: DerivedTypes.h:150
bool isOpaque() const
isOpaque - Return true if this is a type with an identity that has no body specified yet...
Definition: DerivedTypes.h:250
APInt getMask() const
For example, this is 0xFF for an 8 bit integer, 0xFFFF for i16, etc.
Definition: Type.cpp:333
unsigned getNumParams() const
getNumParams - Return the number of fixed parameters this function type requires. ...
Definition: DerivedTypes.h:136
Type::subtype_iterator param_iterator
Definition: DerivedTypes.h:123
static bool classof(const Type *T)
Methods for support type inquiry through isa, cast, and dyn_cast.
Definition: DerivedTypes.h:355
ArrayRef< Type * > params() const
Definition: DerivedTypes.h:126
static PointerType * get(Type *ElementType, unsigned AddressSpace)
PointerType::get - This constructs a pointer to an object of the specified type in a numbered address...
Definition: Type.cpp:738
12: Structures
Definition: Type.h:71
unsigned getAddressSpace() const
Return the address space of the Pointer type.
Definition: DerivedTypes.h:472
unsigned getBitWidth() const
Get the number of bits in this IntegerType.
Definition: DerivedTypes.h:61
static bool classof(const Type *T)
Methods for support type inquiry through isa, cast, and dyn_cast.
Definition: DerivedTypes.h:139
14: Pointers
Definition: Type.h:73
static VectorType * getTruncatedElementVectorType(VectorType *VTy)
VectorType::getTruncatedElementVectorType - This static method is like getInteger except that the ele...
Definition: DerivedTypes.h:399
11: Functions
Definition: Type.h:70
Type *const * ContainedTys
ContainedTys - A pointer to the array of Types contained by this Type.
Definition: Type.h:118
SequentialType(TypeID TID, Type *ElType)
Definition: DerivedTypes.h:316
A templated base class for SmallPtrSet which provides the typesafe interface that is common across al...
Definition: SmallPtrSet.h:242
element_iterator element_end() const
Definition: DerivedTypes.h:280
Minimum number of bits that can be specified.
Definition: DerivedTypes.h:47
bool isPacked() const
Definition: DerivedTypes.h:242
Type::subtype_iterator element_iterator
Definition: DerivedTypes.h:278
ArrayRef< T > makeArrayRef(const T &OneElt)
Construct an ArrayRef from a single element.
Definition: ArrayRef.h:308
static bool classof(const Type *T)
Methods for support type inquiry through isa, cast, and dyn_cast.
Definition: DerivedTypes.h:441
StructType - Class to represent struct types.
Definition: DerivedTypes.h:191
param_iterator param_end() const
Definition: DerivedTypes.h:125
uint64_t getSignBit() const
getSignBit - Return a uint64_t with just the most significant bit set (the sign bit, if the value is treated as a signed number).
Definition: DerivedTypes.h:72
unsigned getBitWidth() const
Return the number of bits in the Vector type.
Definition: DerivedTypes.h:436
bool isLiteral() const
isLiteral - Return true if this type is uniqued by structural equivalence, false if it is a struct de...
Definition: DerivedTypes.h:246
static StringRef getName(Value *V)
TypeID
Definitions of all of the base types for the Type system.
Definition: Type.h:54
bool isSized(SmallPtrSetImpl< const Type * > *Visited=nullptr) const
isSized - Return true if it makes sense to take the size of this type.
Definition: Type.h:268
ELFYAML::ELF_STO Other
Definition: ELFYAML.cpp:591
FunctionType - Class to represent function types.
Definition: DerivedTypes.h:96
LLVMContext & getContext() const
getContext - Return the LLVMContext in which this type was uniqued.
Definition: Type.h:125
ArrayRef< Type * > const elements() const
Definition: DerivedTypes.h:281
ArrayType - Class to represent array types.
Definition: DerivedTypes.h:336
ArrayRef - Represent a constant reference to an array (0 or more elements consecutively in memory)...
Definition: ArrayRef.h:31
TypeID getTypeID() const
getTypeID - Return the type id for the type.
Definition: Type.h:134
unsigned getNumElements() const
Return the number of elements in the Vector type.
Definition: DerivedTypes.h:432
unsigned getSubclassData() const
Definition: Type.h:101
Type * getElementType() const
Definition: DerivedTypes.h:323
PointerType - Class to represent pointers.
Definition: DerivedTypes.h:449
10: Arbitrary bit width integers
Definition: Type.h:69
Type * getParamType(unsigned i) const
Parameter type accessors.
Definition: DerivedTypes.h:131
static VectorType * getHalfElementsVectorType(VectorType *VTy)
VectorType::getHalfElementsVectorType - This static method returns a VectorType with half as many ele...
Definition: DerivedTypes.h:411
The instances of the Type class are immutable: once they are created, they are never changed...
Definition: Type.h:45
This is an important class for using LLVM in a threaded context.
Definition: LLVMContext.h:41
Type * getElementType(unsigned N) const
Definition: DerivedTypes.h:291
param_iterator param_begin() const
Definition: DerivedTypes.h:124
static bool classof(const Type *T)
Methods for support type inquiry through isa, cast, and dyn_cast.
Definition: DerivedTypes.h:162
static VectorType * getInteger(VectorType *VTy)
VectorType::getInteger - This static method gets a VectorType with the same number of elements as the...
Definition: DerivedTypes.h:378
uint64_t getNumElements() const
Definition: DerivedTypes.h:352
static bool classof(const Type *T)
Methods for support type inquiry through isa, cast, and dyn_cast.
Definition: DerivedTypes.h:326
Class to represent integer types.
Definition: DerivedTypes.h:37
static VectorType * getDoubleElementsVectorType(VectorType *VTy)
VectorType::getDoubleElementsVectorType - This static method returns a VectorType with twice as many ...
Definition: DerivedTypes.h:422
#define LLVM_END_WITH_NULL
Definition: Compiler.h:116
13: Arrays
Definition: Type.h:72
SequentialType - This is the superclass of the array, pointer and vector type classes.
Definition: DerivedTypes.h:310
static IntegerType * get(LLVMContext &C, unsigned NumBits)
This static method is the primary way of constructing an IntegerType.
Definition: Type.cpp:304
static PointerType * getUnqual(Type *ElementType)
PointerType::getUnqual - This constructs a pointer to an object of the specified type in the generic ...
Definition: DerivedTypes.h:460
15: SIMD 'packed' format, or other vector type
Definition: Type.h:74
Type *const * subtype_iterator
Definition: Type.h:313
bool hasName() const
hasName - Return true if this is a named struct that has a non-empty name.
Definition: DerivedTypes.h:256
static bool classof(const Type *T)
Methods for support type inquiry through isa, cast, and dyn_cast.
Definition: DerivedTypes.h:297
AddressSpace
Definition: NVPTXBaseInfo.h:22
Maximum number of bits that can be specified.
Definition: DerivedTypes.h:48
static VectorType * getExtendedElementVectorType(VectorType *VTy)
VectorType::getExtendedElementVectorType - This static method is like getInteger except that the elem...
Definition: DerivedTypes.h:389
Symbol info for RuntimeDyld.
VectorType - Class to represent vector types.
Definition: DerivedTypes.h:362
Class for arbitrary precision integers.
Definition: APInt.h:73
CompositeType - Common super class of ArrayType, StructType, PointerType and VectorType.
Definition: DerivedTypes.h:148
uint64_t getBitMask() const
getBitMask - Return a bitmask with ones set for all of the bits that can be set by an unsigned versio...
Definition: DerivedTypes.h:66
static bool classof(const Type *T)
Methods for support type inquiry through isa, cast, and dyn_cast.
Definition: DerivedTypes.h:88
#define N
bool isPowerOf2ByteWidth() const
This method determines if the width of this IntegerType is a power-of-2 in terms of 8 bit bytes...
Definition: Type.cpp:328
static bool classof(const Type *T)
Implement support type inquiry through isa, cast, and dyn_cast.
Definition: DerivedTypes.h:475
IntegerType(LLVMContext &C, unsigned NumBits)
Definition: DerivedTypes.h:41
bool isVarArg() const
Definition: DerivedTypes.h:120
void setSubclassData(unsigned val)
Definition: Type.h:103
Type * getReturnType() const
Definition: DerivedTypes.h:121
unsigned getPrimitiveSizeInBits() const LLVM_READONLY
getPrimitiveSizeInBits - Return the basic size of this type if it is a primitive type.
Definition: Type.cpp:121
LLVM Value Representation.
Definition: Value.h:69
static VectorType * get(Type *ElementType, unsigned NumElements)
VectorType::get - This static method is the primary way to construct an VectorType.
Definition: Type.cpp:713
StringRef - Represent a constant reference to a string, i.e.
Definition: StringRef.h:40
unsigned getNumElements() const
Random access to the elements.
Definition: DerivedTypes.h:290
unsigned NumContainedTys
NumContainedTys - Keeps track of how many Type*'s there are in the ContainedTys list.
Definition: Type.h:111