#ifndef LLVM_CODEGEN_VALUETYPES_H
#define LLVM_CODEGEN_VALUETYPES_H
+#include "llvm/Support/DataTypes.h"
+#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/MathExtras.h"
#include <cassert>
#include <string>
-#include "llvm/System/DataTypes.h"
-#include "llvm/Support/MathExtras.h"
namespace llvm {
class Type;
class MVT {
public:
enum SimpleValueType {
+ // INVALID_SIMPLE_VALUE_TYPE - Simple value types less than zero are
+ // considered extended value types.
+ INVALID_SIMPLE_VALUE_TYPE = -1,
+
// If you change this numbering, you must change the values in
// ValueTypes.td as well!
Other = 0, // This is a non-standard value
FIRST_INTEGER_VALUETYPE = i1,
LAST_INTEGER_VALUETYPE = i128,
- f32 = 7, // This is a 32 bit floating point value
- f64 = 8, // This is a 64 bit floating point value
- f80 = 9, // This is a 80 bit floating point value
- f128 = 10, // This is a 128 bit floating point value
- ppcf128 = 11, // This is a PPC 128-bit floating point value
-
- v2i8 = 12, // 2 x i8
- v4i8 = 13, // 4 x i8
- v8i8 = 14, // 8 x i8
- v16i8 = 15, // 16 x i8
- v32i8 = 16, // 32 x i8
- v2i16 = 17, // 2 x i16
- v4i16 = 18, // 4 x i16
- v8i16 = 19, // 8 x i16
- v16i16 = 20, // 16 x i16
- v2i32 = 21, // 2 x i32
- v4i32 = 22, // 4 x i32
- v8i32 = 23, // 8 x i32
- v1i64 = 24, // 1 x i64
- v2i64 = 25, // 2 x i64
- v4i64 = 26, // 4 x i64
- v8i64 = 27, // 8 x i64
-
- v2f32 = 28, // 2 x f32
- v4f32 = 29, // 4 x f32
- v8f32 = 30, // 8 x f32
- v2f64 = 31, // 2 x f64
- v4f64 = 32, // 4 x f64
-
- FIRST_VECTOR_VALUETYPE = v2i8,
- LAST_VECTOR_VALUETYPE = v4f64,
-
- x86mmx = 33, // This is an X86 MMX value
-
- Flag = 34, // This glues nodes together during pre-RA sched
-
- isVoid = 35, // This has no value
-
- LAST_VALUETYPE = 36, // This always remains at the end of the list.
+ f16 = 7, // This is a 16 bit floating point value
+ f32 = 8, // This is a 32 bit floating point value
+ f64 = 9, // This is a 64 bit floating point value
+ f80 = 10, // This is a 80 bit floating point value
+ f128 = 11, // This is a 128 bit floating point value
+ ppcf128 = 12, // This is a PPC 128-bit floating point value
+
+ FIRST_FP_VALUETYPE = f16,
+ LAST_FP_VALUETYPE = ppcf128,
+
+ v2i1 = 13, // 2 x i1
+ v4i1 = 14, // 4 x i1
+ v8i1 = 15, // 8 x i1
+ v16i1 = 16, // 16 x i1
+ v32i1 = 17, // 32 x i1
+ v64i1 = 18, // 64 x i1
+
+ v2i8 = 19, // 2 x i8
+ v4i8 = 20, // 4 x i8
+ v8i8 = 21, // 8 x i8
+ v16i8 = 22, // 16 x i8
+ v32i8 = 23, // 32 x i8
+ v64i8 = 24, // 64 x i8
+ v1i16 = 25, // 1 x i16
+ v2i16 = 26, // 2 x i16
+ v4i16 = 27, // 4 x i16
+ v8i16 = 28, // 8 x i16
+ v16i16 = 29, // 16 x i16
+ v32i16 = 30, // 32 x i16
+ v1i32 = 31, // 1 x i32
+ v2i32 = 32, // 2 x i32
+ v4i32 = 33, // 4 x i32
+ v8i32 = 34, // 8 x i32
+ v16i32 = 35, // 16 x i32
+ v1i64 = 36, // 1 x i64
+ v2i64 = 37, // 2 x i64
+ v4i64 = 38, // 4 x i64
+ v8i64 = 39, // 8 x i64
+ v16i64 = 40, // 16 x i64
+
+ FIRST_INTEGER_VECTOR_VALUETYPE = v2i1,
+ LAST_INTEGER_VECTOR_VALUETYPE = v16i64,
+
+ v2f16 = 41, // 2 x f16
+ v2f32 = 42, // 2 x f32
+ v4f32 = 43, // 4 x f32
+ v8f32 = 44, // 8 x f32
+ v16f32 = 45, // 16 x f32
+ v2f64 = 46, // 2 x f64
+ v4f64 = 47, // 4 x f64
+ v8f64 = 48, // 8 x f64
+
+ FIRST_FP_VECTOR_VALUETYPE = v2f16,
+ LAST_FP_VECTOR_VALUETYPE = v8f64,
+
+ FIRST_VECTOR_VALUETYPE = v2i1,
+ LAST_VECTOR_VALUETYPE = v8f64,
+
+ x86mmx = 49, // This is an X86 MMX value
+
+ Glue = 50, // This glues nodes together during pre-RA sched
+
+ isVoid = 51, // This has no value
+
+ Untyped = 52, // This value takes a register, but has
+ // unspecified type. The register class
+ // will be determined by the opcode.
+
+ LAST_VALUETYPE = 53, // This always remains at the end of the list.
// This is the current maximum for LAST_VALUETYPE.
- // EVT::MAX_ALLOWED_VALUETYPE is used for asserts and to size bit vectors
+ // MVT::MAX_ALLOWED_VALUETYPE is used for asserts and to size bit vectors
// This value must be a multiple of 32.
MAX_ALLOWED_VALUETYPE = 64,
// iPTR - An int value the size of the pointer of the current
// target. This should only be used internal to tblgen!
- iPTR = 255,
-
- // LastSimpleValueType - The greatest valid SimpleValueType value.
- LastSimpleValueType = 255,
-
- // INVALID_SIMPLE_VALUE_TYPE - Simple value types greater than or equal
- // to this are considered extended value types.
- INVALID_SIMPLE_VALUE_TYPE = LastSimpleValueType + 1
+ iPTR = 255
};
SimpleValueType SimpleTy;
bool operator>(const MVT& S) const { return SimpleTy > S.SimpleTy; }
bool operator<(const MVT& S) const { return SimpleTy < S.SimpleTy; }
bool operator==(const MVT& S) const { return SimpleTy == S.SimpleTy; }
+ bool operator!=(const MVT& S) const { return SimpleTy != S.SimpleTy; }
bool operator>=(const MVT& S) const { return SimpleTy >= S.SimpleTy; }
bool operator<=(const MVT& S) const { return SimpleTy <= S.SimpleTy; }
/// isFloatingPoint - Return true if this is a FP, or a vector FP type.
bool isFloatingPoint() const {
- return ((SimpleTy >= MVT::f32 && SimpleTy <= MVT::ppcf128) ||
- (SimpleTy >= MVT::v2f32 && SimpleTy <= MVT::v4f64));
+ return ((SimpleTy >= MVT::FIRST_FP_VALUETYPE &&
+ SimpleTy <= MVT::LAST_FP_VALUETYPE) ||
+ (SimpleTy >= MVT::FIRST_FP_VECTOR_VALUETYPE &&
+ SimpleTy <= MVT::LAST_FP_VECTOR_VALUETYPE));
}
/// isInteger - Return true if this is an integer, or a vector integer type.
bool isInteger() const {
return ((SimpleTy >= MVT::FIRST_INTEGER_VALUETYPE &&
SimpleTy <= MVT::LAST_INTEGER_VALUETYPE) ||
- (SimpleTy >= MVT::v2i8 && SimpleTy <= MVT::v8i64));
+ (SimpleTy >= MVT::FIRST_INTEGER_VECTOR_VALUETYPE &&
+ SimpleTy <= MVT::LAST_INTEGER_VECTOR_VALUETYPE));
}
/// isVector - Return true if this is a vector value type.
SimpleTy <= MVT::LAST_VECTOR_VALUETYPE);
}
+ /// is16BitVector - Return true if this is a 16-bit vector type.
+ bool is16BitVector() const {
+ return (SimpleTy == MVT::v2i8 || SimpleTy == MVT::v1i16 ||
+ SimpleTy == MVT::v16i1);
+ }
+
+ /// is32BitVector - Return true if this is a 32-bit vector type.
+ bool is32BitVector() const {
+ return (SimpleTy == MVT::v4i8 || SimpleTy == MVT::v2i16 ||
+ SimpleTy == MVT::v1i32);
+ }
+
+ /// is64BitVector - Return true if this is a 64-bit vector type.
+ bool is64BitVector() const {
+ return (SimpleTy == MVT::v8i8 || SimpleTy == MVT::v4i16 ||
+ SimpleTy == MVT::v2i32 || SimpleTy == MVT::v1i64 ||
+ SimpleTy == MVT::v2f32);
+ }
+
+ /// is128BitVector - Return true if this is a 128-bit vector type.
+ bool is128BitVector() const {
+ return (SimpleTy == MVT::v16i8 || SimpleTy == MVT::v8i16 ||
+ SimpleTy == MVT::v4i32 || SimpleTy == MVT::v2i64 ||
+ SimpleTy == MVT::v4f32 || SimpleTy == MVT::v2f64);
+ }
+
+ /// is256BitVector - Return true if this is a 256-bit vector type.
+ bool is256BitVector() const {
+ return (SimpleTy == MVT::v8f32 || SimpleTy == MVT::v4f64 ||
+ SimpleTy == MVT::v32i8 || SimpleTy == MVT::v16i16 ||
+ SimpleTy == MVT::v8i32 || SimpleTy == MVT::v4i64);
+ }
+
+ /// is512BitVector - Return true if this is a 512-bit vector type.
+ bool is512BitVector() const {
+ return (SimpleTy == MVT::v8f64 || SimpleTy == MVT::v16f32 ||
+ SimpleTy == MVT::v64i8 || SimpleTy == MVT::v32i16 ||
+ SimpleTy == MVT::v8i64 || SimpleTy == MVT::v16i32);
+ }
+
+ /// is1024BitVector - Return true if this is a 1024-bit vector type.
+ bool is1024BitVector() const {
+ return (SimpleTy == MVT::v16i64);
+ }
+
/// isPow2VectorType - Returns true if the given vector is a power of 2.
bool isPow2VectorType() const {
unsigned NElts = getVectorNumElements();
MVT getVectorElementType() const {
switch (SimpleTy) {
default:
- return (MVT::SimpleValueType)(MVT::INVALID_SIMPLE_VALUE_TYPE);
+ llvm_unreachable("Not a vector MVT!");
+ case v2i1 :
+ case v4i1 :
+ case v8i1 :
+ case v16i1 :
+ case v32i1 :
+ case v64i1: return i1;
case v2i8 :
case v4i8 :
case v8i8 :
case v16i8:
- case v32i8: return i8;
+ case v32i8:
+ case v64i8: return i8;
+ case v1i16:
case v2i16:
case v4i16:
case v8i16:
- case v16i16: return i16;
+ case v16i16:
+ case v32i16: return i16;
+ case v1i32:
case v2i32:
case v4i32:
- case v8i32: return i32;
+ case v8i32:
+ case v16i32: return i32;
case v1i64:
case v2i64:
case v4i64:
- case v8i64: return i64;
+ case v8i64:
+ case v16i64: return i64;
+ case v2f16: return f16;
case v2f32:
case v4f32:
- case v8f32: return f32;
+ case v8f32:
+ case v16f32: return f32;
case v2f64:
- case v4f64: return f64;
+ case v4f64:
+ case v8f64: return f64;
}
}
unsigned getVectorNumElements() const {
switch (SimpleTy) {
default:
- return ~0U;
- case v32i8: return 32;
+ llvm_unreachable("Not a vector MVT!");
+ case v32i1:
+ case v32i8:
+ case v32i16: return 32;
+ case v64i1:
+ case v64i8: return 64;
+ case v16i1:
case v16i8:
- case v16i16: return 16;
+ case v16i16:
+ case v16i32:
+ case v16i64:
+ case v16f32: return 16;
+ case v8i1 :
case v8i8 :
case v8i16:
case v8i32:
case v8i64:
- case v8f32: return 8;
+ case v8f32:
+ case v8f64: return 8;
+ case v4i1:
case v4i8:
case v4i16:
case v4i32:
case v4i64:
case v4f32:
case v4f64: return 4;
+ case v2i1:
case v2i8:
case v2i16:
case v2i32:
case v2i64:
+ case v2f16:
case v2f32:
case v2f64: return 2;
+ case v1i16:
+ case v1i32:
case v1i64: return 1;
}
}
unsigned getSizeInBits() const {
switch (SimpleTy) {
case iPTR:
- assert(0 && "Value type size is target-dependent. Ask TLI.");
+ llvm_unreachable("Value type size is target-dependent. Ask TLI.");
case iPTRAny:
case iAny:
case fAny:
- assert(0 && "Value type is overloaded.");
+ case vAny:
+ llvm_unreachable("Value type is overloaded.");
+ case Metadata:
+ llvm_unreachable("Value type is metadata.");
default:
- assert(0 && "getSizeInBits called on extended MVT.");
+ llvm_unreachable("getSizeInBits called on extended MVT.");
case i1 : return 1;
- case i8 : return 8;
+ case v2i1: return 2;
+ case v4i1: return 4;
+ case i8 :
+ case v8i1: return 8;
case i16 :
- case v2i8: return 16;
+ case f16:
+ case v16i1:
+ case v2i8:
+ case v1i16: return 16;
case f32 :
case i32 :
+ case v32i1:
case v4i8:
- case v2i16: return 32;
+ case v2i16:
+ case v2f16:
+ case v1i32: return 32;
case x86mmx:
case f64 :
case i64 :
+ case v64i1:
case v8i8:
case v4i16:
case v2i32:
case v4i64:
case v8f32:
case v4f64: return 256;
- case v8i64: return 512;
+ case v64i8:
+ case v32i16:
+ case v16i32:
+ case v8i64:
+ case v16f32:
+ case v8f64: return 512;
+ case v16i64:return 1024;
}
}
+ /// getStoreSize - Return the number of bytes overwritten by a store
+ /// of the specified value type.
+ unsigned getStoreSize() const {
+ return (getSizeInBits() + 7) / 8;
+ }
+
+ /// getStoreSizeInBits - Return the number of bits overwritten by a store
+ /// of the specified value type.
+ unsigned getStoreSizeInBits() const {
+ return getStoreSize() * 8;
+ }
+
+ /// Return true if this has more bits than VT.
+ bool bitsGT(MVT VT) const {
+ return getSizeInBits() > VT.getSizeInBits();
+ }
+
+ /// Return true if this has no less bits than VT.
+ bool bitsGE(MVT VT) const {
+ return getSizeInBits() >= VT.getSizeInBits();
+ }
+
+ /// Return true if this has less bits than VT.
+ bool bitsLT(MVT VT) const {
+ return getSizeInBits() < VT.getSizeInBits();
+ }
+
+ /// Return true if this has no more bits than VT.
+ bool bitsLE(MVT VT) const {
+ return getSizeInBits() <= VT.getSizeInBits();
+ }
+
+
static MVT getFloatingPointVT(unsigned BitWidth) {
switch (BitWidth) {
default:
- assert(false && "Bad bit width!");
+ llvm_unreachable("Bad bit width!");
+ case 16:
+ return MVT::f16;
case 32:
return MVT::f32;
case 64:
switch (VT.SimpleTy) {
default:
break;
+ case MVT::i1:
+ if (NumElements == 2) return MVT::v2i1;
+ if (NumElements == 4) return MVT::v4i1;
+ if (NumElements == 8) return MVT::v8i1;
+ if (NumElements == 16) return MVT::v16i1;
+ if (NumElements == 32) return MVT::v32i1;
+ if (NumElements == 64) return MVT::v64i1;
+ break;
case MVT::i8:
if (NumElements == 2) return MVT::v2i8;
if (NumElements == 4) return MVT::v4i8;
if (NumElements == 8) return MVT::v8i8;
if (NumElements == 16) return MVT::v16i8;
if (NumElements == 32) return MVT::v32i8;
+ if (NumElements == 64) return MVT::v64i8;
break;
case MVT::i16:
+ if (NumElements == 1) return MVT::v1i16;
if (NumElements == 2) return MVT::v2i16;
if (NumElements == 4) return MVT::v4i16;
if (NumElements == 8) return MVT::v8i16;
if (NumElements == 16) return MVT::v16i16;
+ if (NumElements == 32) return MVT::v32i16;
break;
case MVT::i32:
+ if (NumElements == 1) return MVT::v1i32;
if (NumElements == 2) return MVT::v2i32;
if (NumElements == 4) return MVT::v4i32;
if (NumElements == 8) return MVT::v8i32;
+ if (NumElements == 16) return MVT::v16i32;
break;
case MVT::i64:
if (NumElements == 1) return MVT::v1i64;
if (NumElements == 2) return MVT::v2i64;
if (NumElements == 4) return MVT::v4i64;
if (NumElements == 8) return MVT::v8i64;
+ if (NumElements == 16) return MVT::v16i64;
+ break;
+ case MVT::f16:
+ if (NumElements == 2) return MVT::v2f16;
break;
case MVT::f32:
if (NumElements == 2) return MVT::v2f32;
if (NumElements == 4) return MVT::v4f32;
if (NumElements == 8) return MVT::v8f32;
+ if (NumElements == 16) return MVT::v16f32;
break;
case MVT::f64:
if (NumElements == 2) return MVT::v2f64;
if (NumElements == 4) return MVT::v4f64;
+ if (NumElements == 8) return MVT::v8f64;
break;
}
return (MVT::SimpleValueType)(MVT::INVALID_SIMPLE_VALUE_TYPE);
}
+
+ /// Return the value type corresponding to the specified type. This returns
+ /// all pointers as iPTR. If HandleUnknown is true, unknown types are
+ /// returned as Other, otherwise they are invalid.
+ static MVT getVT(Type *Ty, bool HandleUnknown = false);
+
};
struct EVT {
private:
MVT V;
- const Type *LLVMTy;
+ Type *LLVMTy;
public:
EVT() : V((MVT::SimpleValueType)(MVT::INVALID_SIMPLE_VALUE_TYPE)),
bool operator!=(EVT VT) const {
if (V.SimpleTy != VT.V.SimpleTy)
return true;
- if (V.SimpleTy == MVT::INVALID_SIMPLE_VALUE_TYPE)
+ if (V.SimpleTy < 0)
return LLVMTy != VT.LLVMTy;
return false;
}
/// number of bits.
static EVT getIntegerVT(LLVMContext &Context, unsigned BitWidth) {
MVT M = MVT::getIntegerVT(BitWidth);
- if (M.SimpleTy != MVT::INVALID_SIMPLE_VALUE_TYPE)
+ if (M.SimpleTy >= 0)
return M;
return getExtendedIntegerVT(Context, BitWidth);
}
/// length, where each element is of type VT.
static EVT getVectorVT(LLVMContext &Context, EVT VT, unsigned NumElements) {
MVT M = MVT::getVectorVT(VT.V, NumElements);
- if (M.SimpleTy != MVT::INVALID_SIMPLE_VALUE_TYPE)
+ if (M.SimpleTy >= 0)
return M;
return getExtendedVectorVT(Context, VT, NumElements);
}
- /// getIntVectorWithNumElements - Return any integer vector type that has
- /// the specified number of elements.
- static EVT getIntVectorWithNumElements(LLVMContext &C, unsigned NumElts) {
- switch (NumElts) {
- default: return getVectorVT(C, MVT::i8, NumElts);
- case 1: return MVT::v1i64;
- case 2: return MVT::v2i32;
- case 4: return MVT::v4i16;
- case 8: return MVT::v8i8;
- case 16: return MVT::v16i8;
- }
- return MVT::INVALID_SIMPLE_VALUE_TYPE;
+ /// changeVectorElementTypeToInteger - Return a vector with the same number
+ /// of elements as this vector, but with the element type converted to an
+ /// integer type with the same bitwidth.
+ EVT changeVectorElementTypeToInteger() const {
+ if (!isSimple())
+ return changeExtendedVectorElementTypeToInteger();
+ MVT EltTy = getSimpleVT().getVectorElementType();
+ unsigned BitWidth = EltTy.getSizeInBits();
+ MVT IntTy = MVT::getIntegerVT(BitWidth);
+ MVT VecTy = MVT::getVectorVT(IntTy, getVectorNumElements());
+ assert(VecTy.SimpleTy >= 0 &&
+ "Simple vector VT not representable by simple integer vector VT!");
+ return VecTy;
}
/// isSimple - Test if the given EVT is simple (as opposed to being
/// extended).
bool isSimple() const {
- return V.SimpleTy <= MVT::LastSimpleValueType;
+ return V.SimpleTy >= 0;
}
/// isExtended - Test if the given EVT is extended (as opposed to
return isSimple() ? V.isVector() : isExtendedVector();
}
+ /// is16BitVector - Return true if this is a 16-bit vector type.
+ bool is16BitVector() const {
+ return isSimple() ? V.is16BitVector() : isExtended16BitVector();
+ }
+
+ /// is32BitVector - Return true if this is a 32-bit vector type.
+ bool is32BitVector() const {
+ return isSimple() ? V.is32BitVector() : isExtended32BitVector();
+ }
+
/// is64BitVector - Return true if this is a 64-bit vector type.
bool is64BitVector() const {
- if (!isSimple())
- return isExtended64BitVector();
-
- return (V == MVT::v8i8 || V==MVT::v4i16 || V==MVT::v2i32 ||
- V == MVT::v1i64 || V==MVT::v2f32);
+ return isSimple() ? V.is64BitVector() : isExtended64BitVector();
}
/// is128BitVector - Return true if this is a 128-bit vector type.
bool is128BitVector() const {
- if (!isSimple())
- return isExtended128BitVector();
- return (V==MVT::v16i8 || V==MVT::v8i16 || V==MVT::v4i32 ||
- V==MVT::v2i64 || V==MVT::v4f32 || V==MVT::v2f64);
+ return isSimple() ? V.is128BitVector() : isExtended128BitVector();
}
/// is256BitVector - Return true if this is a 256-bit vector type.
- inline bool is256BitVector() const {
- if (!isSimple())
- return isExtended256BitVector();
- return (V == MVT::v8f32 || V == MVT::v4f64 || V == MVT::v32i8 ||
- V == MVT::v16i16 || V == MVT::v8i32 || V == MVT::v4i64);
+ bool is256BitVector() const {
+ return isSimple() ? V.is256BitVector() : isExtended256BitVector();
}
/// is512BitVector - Return true if this is a 512-bit vector type.
- inline bool is512BitVector() const {
- return isSimple() ? (V == MVT::v8i64) : isExtended512BitVector();
+ bool is512BitVector() const {
+ return isSimple() ? V.is512BitVector() : isExtended512BitVector();
+ }
+
+ /// is1024BitVector - Return true if this is a 1024-bit vector type.
+ bool is1024BitVector() const {
+ return isSimple() ? V.is1024BitVector() : isExtended1024BitVector();
}
/// isOverloaded - Return true if this is an overloaded type for TableGen.
/// getTypeForEVT - This method returns an LLVM type corresponding to the
/// specified EVT. For integer types, this returns an unsigned type. Note
/// that this will abort for types that cannot be represented.
- const Type *getTypeForEVT(LLVMContext &Context) const;
+ Type *getTypeForEVT(LLVMContext &Context) const;
/// getEVT - Return the value type corresponding to the specified type.
/// This returns all pointers as iPTR. If HandleUnknown is true, unknown
/// types are returned as Other, otherwise they are invalid.
- static EVT getEVT(const Type *Ty, bool HandleUnknown = false);
+ static EVT getEVT(Type *Ty, bool HandleUnknown = false);
- intptr_t getRawBits() {
+ intptr_t getRawBits() const {
if (isSimple())
return V.SimpleTy;
else
// Methods for handling the Extended-type case in functions above.
// These are all out-of-line to prevent users of this header file
// from having a dependency on Type.h.
+ EVT changeExtendedVectorElementTypeToInteger() const;
static EVT getExtendedIntegerVT(LLVMContext &C, unsigned BitWidth);
static EVT getExtendedVectorVT(LLVMContext &C, EVT VT,
unsigned NumElements);
bool isExtendedFloatingPoint() const;
bool isExtendedInteger() const;
bool isExtendedVector() const;
+ bool isExtended16BitVector() const;
+ bool isExtended32BitVector() const;
bool isExtended64BitVector() const;
bool isExtended128BitVector() const;
bool isExtended256BitVector() const;
bool isExtended512BitVector() const;
+ bool isExtended1024BitVector() const;
EVT getExtendedVectorElementType() const;
unsigned getExtendedVectorNumElements() const;
unsigned getExtendedSizeInBits() const;
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