LLVM  9.0.0svn
Type.h
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1 //===- llvm/Type.h - Classes for handling data types ------------*- C++ -*-===//
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 // This file contains the declaration of the Type class. For more "Type"
10 // stuff, look in DerivedTypes.h.
11 //
12 //===----------------------------------------------------------------------===//
13 
14 #ifndef LLVM_IR_TYPE_H
15 #define LLVM_IR_TYPE_H
16 
17 #include "llvm/ADT/APFloat.h"
18 #include "llvm/ADT/ArrayRef.h"
19 #include "llvm/ADT/SmallPtrSet.h"
21 #include "llvm/Support/Casting.h"
22 #include "llvm/Support/Compiler.h"
24 #include <cassert>
25 #include <cstdint>
26 #include <iterator>
27 
28 namespace llvm {
29 
30 template<class GraphType> struct GraphTraits;
31 class IntegerType;
32 class LLVMContext;
33 class PointerType;
34 class raw_ostream;
35 class StringRef;
36 
37 /// The instances of the Type class are immutable: once they are created,
38 /// they are never changed. Also note that only one instance of a particular
39 /// type is ever created. Thus seeing if two types are equal is a matter of
40 /// doing a trivial pointer comparison. To enforce that no two equal instances
41 /// are created, Type instances can only be created via static factory methods
42 /// in class Type and in derived classes. Once allocated, Types are never
43 /// free'd.
44 ///
45 class Type {
46 public:
47  //===--------------------------------------------------------------------===//
48  /// Definitions of all of the base types for the Type system. Based on this
49  /// value, you can cast to a class defined in DerivedTypes.h.
50  /// Note: If you add an element to this, you need to add an element to the
51  /// Type::getPrimitiveType function, or else things will break!
52  /// Also update LLVMTypeKind and LLVMGetTypeKind () in the C binding.
53  ///
54  enum TypeID {
55  // PrimitiveTypes - make sure LastPrimitiveTyID stays up to date.
56  VoidTyID = 0, ///< 0: type with no size
57  HalfTyID, ///< 1: 16-bit floating point type
58  FloatTyID, ///< 2: 32-bit floating point type
59  DoubleTyID, ///< 3: 64-bit floating point type
60  X86_FP80TyID, ///< 4: 80-bit floating point type (X87)
61  FP128TyID, ///< 5: 128-bit floating point type (112-bit mantissa)
62  PPC_FP128TyID, ///< 6: 128-bit floating point type (two 64-bits, PowerPC)
63  LabelTyID, ///< 7: Labels
64  MetadataTyID, ///< 8: Metadata
65  X86_MMXTyID, ///< 9: MMX vectors (64 bits, X86 specific)
66  TokenTyID, ///< 10: Tokens
67 
68  // Derived types... see DerivedTypes.h file.
69  // Make sure FirstDerivedTyID stays up to date!
70  IntegerTyID, ///< 11: Arbitrary bit width integers
71  FunctionTyID, ///< 12: Functions
72  StructTyID, ///< 13: Structures
73  ArrayTyID, ///< 14: Arrays
74  PointerTyID, ///< 15: Pointers
75  VectorTyID ///< 16: SIMD 'packed' format, or other vector type
76  };
77 
78 private:
79  /// This refers to the LLVMContext in which this type was uniqued.
80  LLVMContext &Context;
81 
82  TypeID ID : 8; // The current base type of this type.
83  unsigned SubclassData : 24; // Space for subclasses to store data.
84  // Note that this should be synchronized with
85  // MAX_INT_BITS value in IntegerType class.
86 
87 protected:
88  friend class LLVMContextImpl;
89 
90  explicit Type(LLVMContext &C, TypeID tid)
91  : Context(C), ID(tid), SubclassData(0) {}
92  ~Type() = default;
93 
94  unsigned getSubclassData() const { return SubclassData; }
95 
96  void setSubclassData(unsigned val) {
97  SubclassData = val;
98  // Ensure we don't have any accidental truncation.
99  assert(getSubclassData() == val && "Subclass data too large for field");
100  }
101 
102  /// Keeps track of how many Type*'s there are in the ContainedTys list.
103  unsigned NumContainedTys = 0;
104 
105  /// A pointer to the array of Types contained by this Type. For example, this
106  /// includes the arguments of a function type, the elements of a structure,
107  /// the pointee of a pointer, the element type of an array, etc. This pointer
108  /// may be 0 for types that don't contain other types (Integer, Double,
109  /// Float).
110  Type * const *ContainedTys = nullptr;
111 
112  static bool isSequentialType(TypeID TyID) {
113  return TyID == ArrayTyID || TyID == VectorTyID;
114  }
115 
116 public:
117  /// Print the current type.
118  /// Omit the type details if \p NoDetails == true.
119  /// E.g., let %st = type { i32, i16 }
120  /// When \p NoDetails is true, we only print %st.
121  /// Put differently, \p NoDetails prints the type as if
122  /// inlined with the operands when printing an instruction.
123  void print(raw_ostream &O, bool IsForDebug = false,
124  bool NoDetails = false) const;
125 
126  void dump() const;
127 
128  /// Return the LLVMContext in which this type was uniqued.
129  LLVMContext &getContext() const { return Context; }
130 
131  //===--------------------------------------------------------------------===//
132  // Accessors for working with types.
133  //
134 
135  /// Return the type id for the type. This will return one of the TypeID enum
136  /// elements defined above.
137  TypeID getTypeID() const { return ID; }
138 
139  /// Return true if this is 'void'.
140  bool isVoidTy() const { return getTypeID() == VoidTyID; }
141 
142  /// Return true if this is 'half', a 16-bit IEEE fp type.
143  bool isHalfTy() const { return getTypeID() == HalfTyID; }
144 
145  /// Return true if this is 'float', a 32-bit IEEE fp type.
146  bool isFloatTy() const { return getTypeID() == FloatTyID; }
147 
148  /// Return true if this is 'double', a 64-bit IEEE fp type.
149  bool isDoubleTy() const { return getTypeID() == DoubleTyID; }
150 
151  /// Return true if this is x86 long double.
152  bool isX86_FP80Ty() const { return getTypeID() == X86_FP80TyID; }
153 
154  /// Return true if this is 'fp128'.
155  bool isFP128Ty() const { return getTypeID() == FP128TyID; }
156 
157  /// Return true if this is powerpc long double.
158  bool isPPC_FP128Ty() const { return getTypeID() == PPC_FP128TyID; }
159 
160  /// Return true if this is one of the six floating-point types
161  bool isFloatingPointTy() const {
162  return getTypeID() == HalfTyID || getTypeID() == FloatTyID ||
163  getTypeID() == DoubleTyID ||
164  getTypeID() == X86_FP80TyID || getTypeID() == FP128TyID ||
166  }
167 
168  const fltSemantics &getFltSemantics() const {
169  switch (getTypeID()) {
170  case HalfTyID: return APFloat::IEEEhalf();
171  case FloatTyID: return APFloat::IEEEsingle();
172  case DoubleTyID: return APFloat::IEEEdouble();
174  case FP128TyID: return APFloat::IEEEquad();
176  default: llvm_unreachable("Invalid floating type");
177  }
178  }
179 
180  /// Return true if this is X86 MMX.
181  bool isX86_MMXTy() const { return getTypeID() == X86_MMXTyID; }
182 
183  /// Return true if this is a FP type or a vector of FP.
184  bool isFPOrFPVectorTy() const { return getScalarType()->isFloatingPointTy(); }
185 
186  /// Return true if this is 'label'.
187  bool isLabelTy() const { return getTypeID() == LabelTyID; }
188 
189  /// Return true if this is 'metadata'.
190  bool isMetadataTy() const { return getTypeID() == MetadataTyID; }
191 
192  /// Return true if this is 'token'.
193  bool isTokenTy() const { return getTypeID() == TokenTyID; }
194 
195  /// True if this is an instance of IntegerType.
196  bool isIntegerTy() const { return getTypeID() == IntegerTyID; }
197 
198  /// Return true if this is an IntegerType of the given width.
199  bool isIntegerTy(unsigned Bitwidth) const;
200 
201  /// Return true if this is an integer type or a vector of integer types.
202  bool isIntOrIntVectorTy() const { return getScalarType()->isIntegerTy(); }
203 
204  /// Return true if this is an integer type or a vector of integer types of
205  /// the given width.
206  bool isIntOrIntVectorTy(unsigned BitWidth) const {
207  return getScalarType()->isIntegerTy(BitWidth);
208  }
209 
210  /// Return true if this is an integer type or a pointer type.
211  bool isIntOrPtrTy() const { return isIntegerTy() || isPointerTy(); }
212 
213  /// True if this is an instance of FunctionType.
214  bool isFunctionTy() const { return getTypeID() == FunctionTyID; }
215 
216  /// True if this is an instance of StructType.
217  bool isStructTy() const { return getTypeID() == StructTyID; }
218 
219  /// True if this is an instance of ArrayType.
220  bool isArrayTy() const { return getTypeID() == ArrayTyID; }
221 
222  /// True if this is an instance of PointerType.
223  bool isPointerTy() const { return getTypeID() == PointerTyID; }
224 
225  /// Return true if this is a pointer type or a vector of pointer types.
226  bool isPtrOrPtrVectorTy() const { return getScalarType()->isPointerTy(); }
227 
228  /// True if this is an instance of VectorType.
229  bool isVectorTy() const { return getTypeID() == VectorTyID; }
230 
231  /// Return true if this type could be converted with a lossless BitCast to
232  /// type 'Ty'. For example, i8* to i32*. BitCasts are valid for types of the
233  /// same size only where no re-interpretation of the bits is done.
234  /// Determine if this type could be losslessly bitcast to Ty
235  bool canLosslesslyBitCastTo(Type *Ty) const;
236 
237  /// Return true if this type is empty, that is, it has no elements or all of
238  /// its elements are empty.
239  bool isEmptyTy() const;
240 
241  /// Return true if the type is "first class", meaning it is a valid type for a
242  /// Value.
243  bool isFirstClassType() const {
244  return getTypeID() != FunctionTyID && getTypeID() != VoidTyID;
245  }
246 
247  /// Return true if the type is a valid type for a register in codegen. This
248  /// includes all first-class types except struct and array types.
249  bool isSingleValueType() const {
250  return isFloatingPointTy() || isX86_MMXTy() || isIntegerTy() ||
251  isPointerTy() || isVectorTy();
252  }
253 
254  /// Return true if the type is an aggregate type. This means it is valid as
255  /// the first operand of an insertvalue or extractvalue instruction. This
256  /// includes struct and array types, but does not include vector types.
257  bool isAggregateType() const {
258  return getTypeID() == StructTyID || getTypeID() == ArrayTyID;
259  }
260 
261  /// Return true if it makes sense to take the size of this type. To get the
262  /// actual size for a particular target, it is reasonable to use the
263  /// DataLayout subsystem to do this.
264  bool isSized(SmallPtrSetImpl<Type*> *Visited = nullptr) const {
265  // If it's a primitive, it is always sized.
266  if (getTypeID() == IntegerTyID || isFloatingPointTy() ||
267  getTypeID() == PointerTyID ||
268  getTypeID() == X86_MMXTyID)
269  return true;
270  // If it is not something that can have a size (e.g. a function or label),
271  // it doesn't have a size.
272  if (getTypeID() != StructTyID && getTypeID() != ArrayTyID &&
273  getTypeID() != VectorTyID)
274  return false;
275  // Otherwise we have to try harder to decide.
276  return isSizedDerivedType(Visited);
277  }
278 
279  /// Return the basic size of this type if it is a primitive type. These are
280  /// fixed by LLVM and are not target-dependent.
281  /// This will return zero if the type does not have a size or is not a
282  /// primitive type.
283  ///
284  /// Note that this may not reflect the size of memory allocated for an
285  /// instance of the type or the number of bytes that are written when an
286  /// instance of the type is stored to memory. The DataLayout class provides
287  /// additional query functions to provide this information.
288  ///
289  unsigned getPrimitiveSizeInBits() const LLVM_READONLY;
290 
291  /// If this is a vector type, return the getPrimitiveSizeInBits value for the
292  /// element type. Otherwise return the getPrimitiveSizeInBits value for this
293  /// type.
294  unsigned getScalarSizeInBits() const LLVM_READONLY;
295 
296  /// Return the width of the mantissa of this type. This is only valid on
297  /// floating-point types. If the FP type does not have a stable mantissa (e.g.
298  /// ppc long double), this method returns -1.
299  int getFPMantissaWidth() const;
300 
301  /// If this is a vector type, return the element type, otherwise return
302  /// 'this'.
303  Type *getScalarType() const {
304  if (isVectorTy())
305  return getVectorElementType();
306  return const_cast<Type*>(this);
307  }
308 
309  //===--------------------------------------------------------------------===//
310  // Type Iteration support.
311  //
312  using subtype_iterator = Type * const *;
313 
315  subtype_iterator subtype_end() const { return &ContainedTys[NumContainedTys];}
318  }
319 
320  using subtype_reverse_iterator = std::reverse_iterator<subtype_iterator>;
321 
324  }
327  }
328 
329  /// This method is used to implement the type iterator (defined at the end of
330  /// the file). For derived types, this returns the types 'contained' in the
331  /// derived type.
332  Type *getContainedType(unsigned i) const {
333  assert(i < NumContainedTys && "Index out of range!");
334  return ContainedTys[i];
335  }
336 
337  /// Return the number of types in the derived type.
338  unsigned getNumContainedTypes() const { return NumContainedTys; }
339 
340  //===--------------------------------------------------------------------===//
341  // Helper methods corresponding to subclass methods. This forces a cast to
342  // the specified subclass and calls its accessor. "getVectorNumElements" (for
343  // example) is shorthand for cast<VectorType>(Ty)->getNumElements(). This is
344  // only intended to cover the core methods that are frequently used, helper
345  // methods should not be added here.
346 
347  inline unsigned getIntegerBitWidth() const;
348 
349  inline Type *getFunctionParamType(unsigned i) const;
350  inline unsigned getFunctionNumParams() const;
351  inline bool isFunctionVarArg() const;
352 
353  inline StringRef getStructName() const;
354  inline unsigned getStructNumElements() const;
355  inline Type *getStructElementType(unsigned N) const;
356 
357  inline Type *getSequentialElementType() const {
358  assert(isSequentialType(getTypeID()) && "Not a sequential type!");
359  return ContainedTys[0];
360  }
361 
362  inline uint64_t getArrayNumElements() const;
363 
365  assert(getTypeID() == ArrayTyID);
366  return ContainedTys[0];
367  }
368 
369  inline unsigned getVectorNumElements() const;
372  return ContainedTys[0];
373  }
374 
377  return ContainedTys[0];
378  }
379 
380  /// Get the address space of this pointer or pointer vector type.
381  inline unsigned getPointerAddressSpace() const;
382 
383  //===--------------------------------------------------------------------===//
384  // Static members exported by the Type class itself. Useful for getting
385  // instances of Type.
386  //
387 
388  /// Return a type based on an identifier.
389  static Type *getPrimitiveType(LLVMContext &C, TypeID IDNumber);
390 
391  //===--------------------------------------------------------------------===//
392  // These are the builtin types that are always available.
393  //
394  static Type *getVoidTy(LLVMContext &C);
395  static Type *getLabelTy(LLVMContext &C);
396  static Type *getHalfTy(LLVMContext &C);
397  static Type *getFloatTy(LLVMContext &C);
398  static Type *getDoubleTy(LLVMContext &C);
399  static Type *getMetadataTy(LLVMContext &C);
400  static Type *getX86_FP80Ty(LLVMContext &C);
401  static Type *getFP128Ty(LLVMContext &C);
402  static Type *getPPC_FP128Ty(LLVMContext &C);
403  static Type *getX86_MMXTy(LLVMContext &C);
404  static Type *getTokenTy(LLVMContext &C);
405  static IntegerType *getIntNTy(LLVMContext &C, unsigned N);
406  static IntegerType *getInt1Ty(LLVMContext &C);
407  static IntegerType *getInt8Ty(LLVMContext &C);
408  static IntegerType *getInt16Ty(LLVMContext &C);
409  static IntegerType *getInt32Ty(LLVMContext &C);
410  static IntegerType *getInt64Ty(LLVMContext &C);
411  static IntegerType *getInt128Ty(LLVMContext &C);
412  template <typename ScalarTy> static Type *getScalarTy(LLVMContext &C) {
413  int noOfBits = sizeof(ScalarTy) * CHAR_BIT;
414  if (std::is_integral<ScalarTy>::value) {
415  return (Type*) Type::getIntNTy(C, noOfBits);
416  } else if (std::is_floating_point<ScalarTy>::value) {
417  switch (noOfBits) {
418  case 32:
419  return Type::getFloatTy(C);
420  case 64:
421  return Type::getDoubleTy(C);
422  }
423  }
424  llvm_unreachable("Unsupported type in Type::getScalarTy");
425  }
426 
427  //===--------------------------------------------------------------------===//
428  // Convenience methods for getting pointer types with one of the above builtin
429  // types as pointee.
430  //
431  static PointerType *getHalfPtrTy(LLVMContext &C, unsigned AS = 0);
432  static PointerType *getFloatPtrTy(LLVMContext &C, unsigned AS = 0);
433  static PointerType *getDoublePtrTy(LLVMContext &C, unsigned AS = 0);
434  static PointerType *getX86_FP80PtrTy(LLVMContext &C, unsigned AS = 0);
435  static PointerType *getFP128PtrTy(LLVMContext &C, unsigned AS = 0);
436  static PointerType *getPPC_FP128PtrTy(LLVMContext &C, unsigned AS = 0);
437  static PointerType *getX86_MMXPtrTy(LLVMContext &C, unsigned AS = 0);
438  static PointerType *getIntNPtrTy(LLVMContext &C, unsigned N, unsigned AS = 0);
439  static PointerType *getInt1PtrTy(LLVMContext &C, unsigned AS = 0);
440  static PointerType *getInt8PtrTy(LLVMContext &C, unsigned AS = 0);
441  static PointerType *getInt16PtrTy(LLVMContext &C, unsigned AS = 0);
442  static PointerType *getInt32PtrTy(LLVMContext &C, unsigned AS = 0);
443  static PointerType *getInt64PtrTy(LLVMContext &C, unsigned AS = 0);
444 
445  /// Return a pointer to the current type. This is equivalent to
446  /// PointerType::get(Foo, AddrSpace).
447  PointerType *getPointerTo(unsigned AddrSpace = 0) const;
448 
449 private:
450  /// Derived types like structures and arrays are sized iff all of the members
451  /// of the type are sized as well. Since asking for their size is relatively
452  /// uncommon, move this operation out-of-line.
453  bool isSizedDerivedType(SmallPtrSetImpl<Type*> *Visited = nullptr) const;
454 };
455 
456 // Printing of types.
457 inline raw_ostream &operator<<(raw_ostream &OS, const Type &T) {
458  T.print(OS);
459  return OS;
460 }
461 
462 // allow isa<PointerType>(x) to work without DerivedTypes.h included.
463 template <> struct isa_impl<PointerType, Type> {
464  static inline bool doit(const Type &Ty) {
465  return Ty.getTypeID() == Type::PointerTyID;
466  }
467 };
468 
469 // Create wrappers for C Binding types (see CBindingWrapping.h).
471 
472 /* Specialized opaque type conversions.
473  */
475  return reinterpret_cast<Type**>(Tys);
476 }
477 
478 inline LLVMTypeRef *wrap(Type **Tys) {
479  return reinterpret_cast<LLVMTypeRef*>(const_cast<Type**>(Tys));
480 }
481 
482 } // end namespace llvm
483 
484 #endif // LLVM_IR_TYPE_H
Type * getVectorElementType() const
Definition: Type.h:370
uint64_t CallInst * C
static const fltSemantics & IEEEquad() LLVM_READNONE
Definition: APFloat.cpp:125
7: Labels
Definition: Type.h:63
ArrayRef< Type * > subtypes() const
Definition: Type.h:316
static Type * getDoubleTy(LLVMContext &C)
Definition: Type.cpp:164
static IntegerType * getInt1Ty(LLVMContext &C)
Definition: Type.cpp:172
LLVMContext & Context
bool isMetadataTy() const
Return true if this is &#39;metadata&#39;.
Definition: Type.h:190
This class represents lattice values for constants.
Definition: AllocatorList.h:23
subtype_iterator subtype_begin() const
Definition: Type.h:314
unsigned getFunctionNumParams() const
Definition: DerivedTypes.h:156
bool isSized(SmallPtrSetImpl< Type *> *Visited=nullptr) const
Return true if it makes sense to take the size of this type.
Definition: Type.h:264
2: 32-bit floating point type
Definition: Type.h:58
bool isFP128Ty() const
Return true if this is &#39;fp128&#39;.
Definition: Type.h:155
static PointerType * getInt32PtrTy(LLVMContext &C, unsigned AS=0)
Definition: Type.cpp:227
bool isIntOrIntVectorTy(unsigned BitWidth) const
Return true if this is an integer type or a vector of integer types of the given width.
Definition: Type.h:206
13: Structures
Definition: Type.h:72
4: 80-bit floating point type (X87)
Definition: Type.h:60
Type * getStructElementType(unsigned N) const
Definition: DerivedTypes.h:364
unsigned getPointerAddressSpace() const
Get the address space of this pointer or pointer vector type.
Definition: DerivedTypes.h:534
1: 16-bit floating point type
Definition: Type.h:57
static IntegerType * getInt64Ty(LLVMContext &C)
Definition: Type.cpp:176
static Type * getMetadataTy(LLVMContext &C)
Definition: Type.cpp:165
bool isVectorTy() const
True if this is an instance of VectorType.
Definition: Type.h:229
15: Pointers
Definition: Type.h:74
static IntegerType * getInt16Ty(LLVMContext &C)
Definition: Type.cpp:174
static Type * getX86_MMXTy(LLVMContext &C)
Definition: Type.cpp:170
static PointerType * getX86_MMXPtrTy(LLVMContext &C, unsigned AS=0)
Definition: Type.cpp:207
12: Functions
Definition: Type.h:71
bool isPPC_FP128Ty() const
Return true if this is powerpc long double.
Definition: Type.h:158
static PointerType * getInt64PtrTy(LLVMContext &C, unsigned AS=0)
Definition: Type.cpp:231
static Type * getX86_FP80Ty(LLVMContext &C)
Definition: Type.cpp:167
Type *const * ContainedTys
A pointer to the array of Types contained by this Type.
Definition: Type.h:110
LLVMContext & getContext() const
Return the LLVMContext in which this type was uniqued.
Definition: Type.h:129
static bool isSequentialType(TypeID TyID)
Definition: Type.h:112
A templated base class for SmallPtrSet which provides the typesafe interface that is common across al...
Definition: SmallPtrSet.h:343
static Type * getTokenTy(LLVMContext &C)
Definition: Type.cpp:166
Type * getPointerElementType() const
Definition: Type.h:375
Attribute unwrap(LLVMAttributeRef Attr)
Definition: Attributes.h:194
static Type * getFloatTy(LLVMContext &C)
Definition: Type.cpp:163
ArrayRef< T > makeArrayRef(const T &OneElt)
Construct an ArrayRef from a single element.
Definition: ArrayRef.h:450
TypeID getTypeID() const
Return the type id for the type.
Definition: Type.h:137
bool isFloatingPointTy() const
Return true if this is one of the six floating-point types.
Definition: Type.h:161
uint64_t getArrayNumElements() const
Definition: DerivedTypes.h:419
PointerType * getPointerTo(unsigned AddrSpace=0) const
Return a pointer to the current type.
Definition: Type.cpp:651
bool isIntegerTy() const
True if this is an instance of IntegerType.
Definition: Type.h:196
TypeID
Definitions of all of the base types for the Type system.
Definition: Type.h:54
static PointerType * getInt16PtrTy(LLVMContext &C, unsigned AS=0)
Definition: Type.cpp:223
Type * getFunctionParamType(unsigned i) const
Definition: DerivedTypes.h:152
static Type * getPPC_FP128Ty(LLVMContext &C)
Definition: Type.cpp:169
#define DEFINE_ISA_CONVERSION_FUNCTIONS(ty, ref)
struct LLVMOpaqueType * LLVMTypeRef
Each value in the LLVM IR has a type, an LLVMTypeRef.
Definition: Types.h:69
static Type * getLabelTy(LLVMContext &C)
Definition: Type.cpp:161
bool isFirstClassType() const
Return true if the type is "first class", meaning it is a valid type for a Value. ...
Definition: Type.h:243
static bool doit(const Type &Ty)
Definition: Type.h:464
~Type()=default
static PointerType * getDoublePtrTy(LLVMContext &C, unsigned AS=0)
Definition: Type.cpp:191
bool isIntOrPtrTy() const
Return true if this is an integer type or a pointer type.
Definition: Type.h:211
ArrayRef - Represent a constant reference to an array (0 or more elements consecutively in memory)...
Definition: APInt.h:32
bool isIntOrIntVectorTy() const
Return true if this is an integer type or a vector of integer types.
Definition: Type.h:202
int getFPMantissaWidth() const
Return the width of the mantissa of this type.
Definition: Type.cpp:133
static const fltSemantics & IEEEdouble() LLVM_READNONE
Definition: APFloat.cpp:122
subtype_iterator subtype_end() const
Definition: Type.h:315
Type(LLVMContext &C, TypeID tid)
Definition: Type.h:90
Type *const * subtype_iterator
Definition: Type.h:312
Class to represent pointers.
Definition: DerivedTypes.h:498
Type * getScalarType() const
If this is a vector type, return the element type, otherwise return &#39;this&#39;.
Definition: Type.h:303
11: Arbitrary bit width integers
Definition: Type.h:70
bool isVoidTy() const
Return true if this is &#39;void&#39;.
Definition: Type.h:140
bool isFloatTy() const
Return true if this is &#39;float&#39;, a 32-bit IEEE fp type.
Definition: Type.h:146
0: type with no size
Definition: Type.h:56
static IntegerType * getInt128Ty(LLVMContext &C)
Definition: Type.cpp:177
bool isLabelTy() const
Return true if this is &#39;label&#39;.
Definition: Type.h:187
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:64
unsigned getNumContainedTypes() const
Return the number of types in the derived type.
Definition: Type.h:338
bool isPointerTy() const
True if this is an instance of PointerType.
Definition: Type.h:223
10: Tokens
Definition: Type.h:66
amdgpu inline
std::reverse_iterator< subtype_iterator > subtype_reverse_iterator
Definition: Type.h:320
This file declares a class to represent arbitrary precision floating point values and provide a varie...
static Type * getVoidTy(LLVMContext &C)
Definition: Type.cpp:160
bool isHalfTy() const
Return true if this is &#39;half&#39;, a 16-bit IEEE fp type.
Definition: Type.h:143
6: 128-bit floating point type (two 64-bits, PowerPC)
Definition: Type.h:62
unsigned getStructNumElements() const
Definition: DerivedTypes.h:360
bool isX86_MMXTy() const
Return true if this is X86 MMX.
Definition: Type.h:181
static const fltSemantics & x87DoubleExtended() LLVM_READNONE
Definition: APFloat.cpp:128
Class to represent integer types.
Definition: DerivedTypes.h:39
static PointerType * getPPC_FP128PtrTy(LLVMContext &C, unsigned AS=0)
Definition: Type.cpp:203
bool isFunctionVarArg() const
Definition: DerivedTypes.h:148
static PointerType * getFloatPtrTy(LLVMContext &C, unsigned AS=0)
Definition: Type.cpp:187
static PointerType * getInt8PtrTy(LLVMContext &C, unsigned AS=0)
Definition: Type.cpp:219
#define llvm_unreachable(msg)
Marks that the current location is not supposed to be reachable.
static Type * getFP128Ty(LLVMContext &C)
Definition: Type.cpp:168
static PointerType * getX86_FP80PtrTy(LLVMContext &C, unsigned AS=0)
Definition: Type.cpp:195
void dump() const
Definition: AsmWriter.cpp:4365
subtype_reverse_iterator subtype_rbegin() const
Definition: Type.h:322
14: Arrays
Definition: Type.h:73
static Type * getHalfTy(LLVMContext &C)
Definition: Type.cpp:162
bool isPtrOrPtrVectorTy() const
Return true if this is a pointer type or a vector of pointer types.
Definition: Type.h:226
Type * getSequentialElementType() const
Definition: Type.h:357
static const fltSemantics & IEEEsingle() LLVM_READNONE
Definition: APFloat.cpp:119
static PointerType * getInt1PtrTy(LLVMContext &C, unsigned AS=0)
Definition: Type.cpp:215
static const fltSemantics & IEEEhalf() LLVM_READNONE
Definition: APFloat.cpp:116
16: SIMD &#39;packed&#39; format, or other vector type
Definition: Type.h:75
unsigned getScalarSizeInBits() const LLVM_READONLY
If this is a vector type, return the getPrimitiveSizeInBits value for the element type...
Definition: Type.cpp:129
bool isAggregateType() const
Return true if the type is an aggregate type.
Definition: Type.h:257
static IntegerType * getIntNTy(LLVMContext &C, unsigned N)
Definition: Type.cpp:179
static PointerType * getHalfPtrTy(LLVMContext &C, unsigned AS=0)
Definition: Type.cpp:183
static Type * getPrimitiveType(LLVMContext &C, TypeID IDNumber)
Return a type based on an identifier.
Definition: Type.cpp:38
static PointerType * getFP128PtrTy(LLVMContext &C, unsigned AS=0)
Definition: Type.cpp:199
8: Metadata
Definition: Type.h:64
unsigned getVectorNumElements() const
Definition: DerivedTypes.h:493
bool isX86_FP80Ty() const
Return true if this is x86 long double.
Definition: Type.h:152
static const fltSemantics & PPCDoubleDouble() LLVM_READNONE
Definition: APFloat.cpp:134
unsigned getSubclassData() const
Definition: Type.h:94
bool isFunctionTy() const
True if this is an instance of FunctionType.
Definition: Type.h:214
LLVMAttributeRef wrap(Attribute Attr)
Definition: Attributes.h:189
static IntegerType * getInt32Ty(LLVMContext &C)
Definition: Type.cpp:175
unsigned getIntegerBitWidth() const
Definition: DerivedTypes.h:96
void print(raw_ostream &O, bool IsForDebug=false, bool NoDetails=false) const
Print the current type.
Definition: AsmWriter.cpp:4185
bool isTokenTy() const
Return true if this is &#39;token&#39;.
Definition: Type.h:193
subtype_reverse_iterator subtype_rend() const
Definition: Type.h:325
bool canLosslesslyBitCastTo(Type *Ty) const
Return true if this type could be converted with a lossless BitCast to type &#39;Ty&#39;. ...
Definition: Type.cpp:60
#define N
#define LLVM_READONLY
Definition: Compiler.h:183
raw_ostream & operator<<(raw_ostream &OS, const APInt &I)
Definition: APInt.h:2038
static PointerType * getIntNPtrTy(LLVMContext &C, unsigned N, unsigned AS=0)
Definition: Type.cpp:211
bool isFPOrFPVectorTy() const
Return true if this is a FP type or a vector of FP.
Definition: Type.h:184
3: 64-bit floating point type
Definition: Type.h:59
void setSubclassData(unsigned val)
Definition: Type.h:96
assert(ImpDefSCC.getReg()==AMDGPU::SCC &&ImpDefSCC.isDef())
static Type * getScalarTy(LLVMContext &C)
Definition: Type.h:412
bool isSingleValueType() const
Return true if the type is a valid type for a register in codegen.
Definition: Type.h:249
unsigned getPrimitiveSizeInBits() const LLVM_READONLY
Return the basic size of this type if it is a primitive type.
Definition: Type.cpp:114
This class implements an extremely fast bulk output stream that can only output to a stream...
Definition: raw_ostream.h:45
StringRef - Represent a constant reference to a string, i.e.
Definition: StringRef.h:48
Type * getArrayElementType() const
Definition: Type.h:364
bool isEmptyTy() const
Return true if this type is empty, that is, it has no elements or all of its elements are empty...
Definition: Type.cpp:97
9: MMX vectors (64 bits, X86 specific)
Definition: Type.h:65
bool isDoubleTy() const
Return true if this is &#39;double&#39;, a 64-bit IEEE fp type.
Definition: Type.h:149
static IntegerType * getInt8Ty(LLVMContext &C)
Definition: Type.cpp:173
unsigned NumContainedTys
Keeps track of how many Type*&#39;s there are in the ContainedTys list.
Definition: Type.h:103
bool isStructTy() const
True if this is an instance of StructType.
Definition: Type.h:217
bool isArrayTy() const
True if this is an instance of ArrayType.
Definition: Type.h:220
Type * getContainedType(unsigned i) const
This method is used to implement the type iterator (defined at the end of the file).
Definition: Type.h:332
const fltSemantics & getFltSemantics() const
Definition: Type.h:168
5: 128-bit floating point type (112-bit mantissa)
Definition: Type.h:61
StringRef getStructName() const
Definition: DerivedTypes.h:356