#ifndef LLVM_IR_TYPE_H
#define LLVM_IR_TYPE_H
+#include "llvm-c/Core.h"
#include "llvm/ADT/APFloat.h"
+#include "llvm/ADT/SmallPtrSet.h"
+#include "llvm/Support/CBindingWrapping.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/DataTypes.h"
#include "llvm/Support/ErrorHandling.h"
StructTyID, ///< 12: Structures
ArrayTyID, ///< 13: Arrays
PointerTyID, ///< 14: Pointers
- VectorTyID, ///< 15: SIMD 'packed' format, or other vector type
-
- NumTypeIDs, // Must remain as last defined ID
- LastPrimitiveTyID = X86_MMXTyID,
- FirstDerivedTyID = IntegerTyID
+ VectorTyID ///< 15: SIMD 'packed' format, or other vector type
};
private:
friend class LLVMContextImpl;
explicit Type(LLVMContext &C, TypeID tid)
: Context(C), IDAndSubclassData(0),
- NumContainedTys(0), ContainedTys(0) {
+ NumContainedTys(0), ContainedTys(nullptr) {
setTypeID(tid);
}
~Type() {}
/// elements or all its elements are empty.
bool isEmptyTy() const;
- /// Here are some useful little methods to query what type derived types are
- /// Note that all other types can just compare to see if this == Type::xxxTy;
- ///
- bool isPrimitiveType() const { return getTypeID() <= LastPrimitiveTyID; }
- bool isDerivedType() const { return getTypeID() >= FirstDerivedTyID; }
-
/// isFirstClassType - Return true if the type is "first class", meaning it
/// is a valid type for a Value.
///
/// and array types.
///
bool isSingleValueType() const {
- return (getTypeID() != VoidTyID && isPrimitiveType()) ||
- getTypeID() == IntegerTyID || getTypeID() == PointerTyID ||
- getTypeID() == VectorTyID;
+ return isFloatingPointTy() || isX86_MMXTy() || isIntegerTy() ||
+ isPointerTy() || isVectorTy();
}
/// isAggregateType - Return true if the type is an aggregate type. This
/// get the actual size for a particular target, it is reasonable to use the
/// DataLayout subsystem to do this.
///
- bool isSized() const {
+ bool isSized(SmallPtrSet<const Type*, 4> *Visited = nullptr) const {
// If it's a primitive, it is always sized.
if (getTypeID() == IntegerTyID || isFloatingPointTy() ||
getTypeID() == PointerTyID ||
getTypeID() != VectorTyID)
return false;
// Otherwise we have to try harder to decide.
- return isSizedDerivedType();
+ return isSizedDerivedType(Visited);
}
/// getPrimitiveSizeInBits - Return the basic size of this type if it is a
/// instance of the type is stored to memory. The DataLayout class provides
/// additional query functions to provide this information.
///
- unsigned getPrimitiveSizeInBits() const;
+ unsigned getPrimitiveSizeInBits() const LLVM_READONLY;
/// getScalarSizeInBits - If this is a vector type, return the
/// getPrimitiveSizeInBits value for the element type. Otherwise return the
/// getPrimitiveSizeInBits value for this type.
- unsigned getScalarSizeInBits();
+ unsigned getScalarSizeInBits() const LLVM_READONLY;
/// getFPMantissaWidth - Return the width of the mantissa of this type. This
/// is only valid on floating point types. If the FP type does not
/// getScalarType - If this is a vector type, return the element type,
/// otherwise return 'this'.
- const Type *getScalarType() const;
- Type *getScalarType();
+ const Type *getScalarType() const LLVM_READONLY;
+ Type *getScalarType() LLVM_READONLY;
//===--------------------------------------------------------------------===//
// Type Iteration support.
subtype_iterator subtype_begin() const { return ContainedTys; }
subtype_iterator subtype_end() const { return &ContainedTys[NumContainedTys];}
+ typedef std::reverse_iterator<subtype_iterator> subtype_reverse_iterator;
+ subtype_reverse_iterator subtype_rbegin() const {
+ return subtype_reverse_iterator(subtype_end());
+ }
+ subtype_reverse_iterator subtype_rend() const {
+ return subtype_reverse_iterator(subtype_begin());
+ }
+
/// getContainedType - This method is used to implement the type iterator
/// (defined a the end of the file). For derived types, this returns the
/// types 'contained' in the derived type.
/// isSizedDerivedType - Derived types like structures and arrays are sized
/// iff all of the members of the type are sized as well. Since asking for
/// their size is relatively uncommon, move this operation out of line.
- bool isSizedDerivedType() const;
+ bool isSizedDerivedType(SmallPtrSet<const Type*, 4> *Visited = nullptr) const;
};
// Printing of types.
}
};
+// Create wrappers for C Binding types (see CBindingWrapping.h).
+DEFINE_ISA_CONVERSION_FUNCTIONS(Type, LLVMTypeRef)
+
+/* Specialized opaque type conversions.
+ */
+inline Type **unwrap(LLVMTypeRef* Tys) {
+ return reinterpret_cast<Type**>(Tys);
+}
+
+inline LLVMTypeRef *wrap(Type **Tys) {
+ return reinterpret_cast<LLVMTypeRef*>(const_cast<Type**>(Tys));
+}
+
} // End llvm namespace
#endif