namespace llvm {
class Type;
+ class LLVMContext;
struct MVT { // MVT = Machine Value Type
public:
-
enum SimpleValueType {
// If you change this numbering, you must change the values in
- // ValueTypes.td well!
+ // ValueTypes.td as well!
Other = 0, // This is a non-standard value
i1 = 1, // This is a 1 bit integer value
i8 = 2, // This is an 8 bit integer value
isVoid = 13, // This has no value
- v8i8 = 14, // 8 x i8
- v4i16 = 15, // 4 x i16
- v2i32 = 16, // 2 x i32
- v1i64 = 17, // 1 x i64
- v16i8 = 18, // 16 x i8
- v8i16 = 19, // 8 x i16
- v3i32 = 20, // 3 x i32
- v4i32 = 21, // 4 x i32
- v2i64 = 22, // 2 x i64
-
- v2f32 = 23, // 2 x f32
- v3f32 = 24, // 3 x f32
- v4f32 = 25, // 4 x f32
- v2f64 = 26, // 2 x f64
-
- FIRST_VECTOR_VALUETYPE = v8i8,
- LAST_VECTOR_VALUETYPE = v2f64,
-
- LAST_VALUETYPE = 27, // This always remains at the end of the list.
+ v2i8 = 14, // 2 x i8
+ v4i8 = 15, // 4 x i8
+ v8i8 = 16, // 8 x i8
+ v16i8 = 17, // 16 x i8
+ v32i8 = 18, // 32 x i8
+ v2i16 = 19, // 2 x i16
+ v4i16 = 20, // 4 x i16
+ v8i16 = 21, // 8 x i16
+ v16i16 = 22, // 16 x i16
+ v2i32 = 23, // 2 x i32
+ v4i32 = 24, // 4 x i32
+ v8i32 = 25, // 8 x i32
+ v1i64 = 26, // 1 x i64
+ v2i64 = 27, // 2 x i64
+ v4i64 = 28, // 4 x i64
+
+ v2f32 = 29, // 2 x f32
+ v4f32 = 30, // 4 x f32
+ v8f32 = 31, // 8 x f32
+ v2f64 = 32, // 2 x f64
+ v4f64 = 33, // 4 x f64
+
+ FIRST_VECTOR_VALUETYPE = v2i8,
+ LAST_VECTOR_VALUETYPE = v4f64,
+
+ LAST_VALUETYPE = 34, // This always remains at the end of the list.
+
+ // This is the current maximum for LAST_VALUETYPE.
+ // 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,
+
+ // Metadata - This is MDNode or MDString.
+ Metadata = 251,
+
+ // iPTRAny - An int value the size of the pointer of the current
+ // target to any address space. This must only be used internal to
+ // tblgen. Other than for overloading, we treat iPTRAny the same as iPTR.
+ iPTRAny = 252,
// fAny - Any floating-point or vector floating-point value. This is used
// for intrinsics that have overloadings based on floating-point types.
// iPTR - An int value the size of the pointer of the current
// target. This should only be used internal to tblgen!
- iPTR = 255
+ iPTR = 255,
+
+ // LastSimpleValueType - The greatest valid SimpleValueType value.
+ LastSimpleValueType = 255
};
- /// MVT - This type holds low-level value types. Valid values include any of
+ private:
+ /// This union holds low-level value types. Valid values include any of
/// the values in the SimpleValueType enum, or any value returned from one
/// of the MVT methods. Any value type equal to one of the SimpleValueType
/// enum values is a "simple" value type. All others are "extended".
/// All legal value types must be simple, but often there are some simple
/// value types that are not legal.
///
- /// @internal
- /// Extended types are either vector types or arbitrary precision integers.
- /// Arbitrary precision integers have iAny in the first SimpleTypeBits bits,
- /// and the bit-width in the next PrecisionBits bits, offset by minus one.
- /// Vector types are encoded by having the first SimpleTypeBits+PrecisionBits
- /// bits encode the vector element type (which must be a scalar type, possibly
- /// an arbitrary precision integer) and the remaining VectorBits upper bits
- /// encode the vector length, offset by one.
- ///
- /// 31--------------16-----------8-------------0
- /// | Vector length | Precision | Simple type |
- /// | | Vector element |
- ///
-
- private:
-
- static const int SimpleTypeBits = 8;
- static const int PrecisionBits = 8;
- static const int VectorBits = 32 - SimpleTypeBits - PrecisionBits;
-
- static const uint32_t SimpleTypeMask =
- (~uint32_t(0) << (32 - SimpleTypeBits)) >> (32 - SimpleTypeBits);
-
- static const uint32_t PrecisionMask =
- ((~uint32_t(0) << VectorBits) >> (32 - PrecisionBits)) << SimpleTypeBits;
-
- static const uint32_t VectorMask =
- (~uint32_t(0) >> (32 - VectorBits)) << (32 - VectorBits);
-
- static const uint32_t ElementMask =
- (~uint32_t(0) << VectorBits) >> VectorBits;
-
- uint32_t V;
+ union {
+ uintptr_t V;
+ const Type *LLVMTy;
+ };
public:
-
MVT() {}
- MVT(SimpleValueType S) { V = S; }
+ MVT(SimpleValueType S) : V(S) {}
- inline bool operator== (const MVT VT) const { return V == VT.V; }
- inline bool operator!= (const MVT VT) const { return V != VT.V; }
+ bool operator==(const MVT VT) const {
+ return getRawBits() == VT.getRawBits();
+ }
+ bool operator!=(const MVT VT) const {
+ return getRawBits() != VT.getRawBits();
+ }
+
+ /// getFloatingPointVT - Returns the MVT that represents a floating point
+ /// type with the given number of bits. There are two floating point types
+ /// with 128 bits - this returns f128 rather than ppcf128.
+ static MVT getFloatingPointVT(unsigned BitWidth) {
+ switch (BitWidth) {
+ default:
+ assert(false && "Bad bit width!");
+ case 32:
+ return f32;
+ case 64:
+ return f64;
+ case 80:
+ return f80;
+ case 128:
+ return f128;
+ }
+ }
/// getIntegerVT - Returns the MVT that represents an integer with the given
/// number of bits.
- static inline MVT getIntegerVT(unsigned BitWidth) {
+ static MVT getIntegerVT(unsigned BitWidth) {
switch (BitWidth) {
default:
break;
case 128:
return i128;
}
- MVT VT;
- VT.V = iAny | (((BitWidth - 1) << SimpleTypeBits) & PrecisionMask);
- assert(VT.getSizeInBits() == BitWidth && "Bad bit width!");
- return VT;
+ return getExtendedIntegerVT(BitWidth);
}
/// getVectorVT - Returns the MVT that represents a vector NumElements in
/// length, where each element is of type VT.
- static inline MVT getVectorVT(MVT VT, unsigned NumElements) {
+ static MVT getVectorVT(MVT VT, unsigned NumElements) {
switch (VT.V) {
default:
break;
case i8:
+ if (NumElements == 2) return v2i8;
+ if (NumElements == 4) return v4i8;
if (NumElements == 8) return v8i8;
if (NumElements == 16) return v16i8;
+ if (NumElements == 32) return v32i8;
break;
case i16:
+ if (NumElements == 2) return v2i16;
if (NumElements == 4) return v4i16;
if (NumElements == 8) return v8i16;
+ if (NumElements == 16) return v16i16;
break;
case i32:
if (NumElements == 2) return v2i32;
- if (NumElements == 3) return v3i32;
if (NumElements == 4) return v4i32;
+ if (NumElements == 8) return v8i32;
break;
case i64:
if (NumElements == 1) return v1i64;
if (NumElements == 2) return v2i64;
+ if (NumElements == 4) return v4i64;
break;
case f32:
if (NumElements == 2) return v2f32;
- if (NumElements == 3) return v3f32;
if (NumElements == 4) return v4f32;
+ if (NumElements == 8) return v8f32;
break;
case f64:
if (NumElements == 2) return v2f64;
+ if (NumElements == 4) return v4f64;
break;
}
- MVT Result;
- Result.V = VT.V | ((NumElements + 1) << (32 - VectorBits));
- assert(Result.getVectorElementType() == VT &&
- "Bad vector element type!");
- assert(Result.getVectorNumElements() == NumElements &&
- "Bad vector length!");
- return Result;
+ return getExtendedVectorVT(VT, NumElements);
}
/// getIntVectorWithNumElements - Return any integer vector type that has
/// the specified number of elements.
- static inline MVT getIntVectorWithNumElements(unsigned NumElts) {
+ static MVT getIntVectorWithNumElements(unsigned NumElts) {
switch (NumElts) {
default: return getVectorVT(i8, NumElts);
case 1: return v1i64;
case 2: return v2i32;
- case 3: return v3i32;
case 4: return v4i16;
case 8: return v8i8;
case 16: return v16i8;
}
}
-
/// isSimple - Test if the given MVT is simple (as opposed to being
/// extended).
- inline bool isSimple() const {
- return V <= SimpleTypeMask;
+ bool isSimple() const {
+ return V <= LastSimpleValueType;
}
/// isExtended - Test if the given MVT is extended (as opposed to
/// being simple).
- inline bool isExtended() const {
+ bool isExtended() const {
return !isSimple();
}
/// isFloatingPoint - Return true if this is a FP, or a vector FP type.
- inline bool isFloatingPoint() const {
- uint32_t SVT = V & SimpleTypeMask;
- return (SVT >= f32 && SVT <= ppcf128) || (SVT >= v2f32 && SVT <= v2f64);
+ bool isFloatingPoint() const {
+ return isSimple() ?
+ ((V >= f32 && V <= ppcf128) ||
+ (V >= v2f32 && V <= v4f64)) : isExtendedFloatingPoint();
}
/// isInteger - Return true if this is an integer, or a vector integer type.
- inline bool isInteger() const {
- uint32_t SVT = V & SimpleTypeMask;
- return (SVT >= FIRST_INTEGER_VALUETYPE && SVT <= LAST_INTEGER_VALUETYPE) ||
- (SVT >= v8i8 && SVT <= v2i64) || (SVT == iAny && (V & PrecisionMask));
+ bool isInteger() const {
+ return isSimple() ?
+ ((V >= FIRST_INTEGER_VALUETYPE && V <= LAST_INTEGER_VALUETYPE) ||
+ (V >= v2i8 && V <= v4i64)) : isExtendedInteger();
}
/// isVector - Return true if this is a vector value type.
- inline bool isVector() const {
- return (V >= FIRST_VECTOR_VALUETYPE && V <= LAST_VECTOR_VALUETYPE) ||
- (V & VectorMask);
+ bool isVector() const {
+ return isSimple() ?
+ (V >= FIRST_VECTOR_VALUETYPE && V <= LAST_VECTOR_VALUETYPE) :
+ isExtendedVector();
}
/// is64BitVector - Return true if this is a 64-bit vector type.
- inline bool is64BitVector() const {
- return (V==v8i8 || V==v4i16 || V==v2i32 || V==v1i64 || V==v2f32 ||
- (isExtended() && isVector() && getSizeInBits()==64));
+ bool is64BitVector() const {
+ return isSimple() ?
+ (V==v8i8 || V==v4i16 || V==v2i32 || V==v1i64 || V==v2f32) :
+ isExtended64BitVector();
}
/// is128BitVector - Return true if this is a 128-bit vector type.
- inline bool is128BitVector() const {
- return (V==v16i8 || V==v8i16 || V==v4i32 || V==v2i64 ||
- V==v4f32 || V==v2f64 ||
- (isExtended() && isVector() && getSizeInBits()==128));
+ bool is128BitVector() const {
+ return isSimple() ?
+ (V==v16i8 || V==v8i16 || V==v4i32 ||
+ V==v2i64 || V==v4f32 || V==v2f64) :
+ isExtended128BitVector();
+ }
+
+ /// is256BitVector - Return true if this is a 256-bit vector type.
+ inline bool is256BitVector() const {
+ return isSimple() ?
+ (V==v8f32 || V==v4f64 || V==v32i8 || V==v16i16 || V==v8i32 ||
+ V==v4i64) : isExtended256BitVector();
}
/// isByteSized - Return true if the bit size is a multiple of 8.
- inline bool isByteSized() const {
+ bool isByteSized() const {
return (getSizeInBits() & 7) == 0;
}
+ /// isRound - Return true if the size is a power-of-two number of bytes.
+ bool isRound() const {
+ unsigned BitSize = getSizeInBits();
+ return BitSize >= 8 && !(BitSize & (BitSize - 1));
+ }
+
+ /// bitsEq - Return true if this has the same number of bits as VT.
+ bool bitsEq(MVT VT) const {
+ return getSizeInBits() == VT.getSizeInBits();
+ }
+
/// bitsGT - Return true if this has more bits than VT.
- inline bool bitsGT(MVT VT) const {
+ bool bitsGT(MVT VT) const {
return getSizeInBits() > VT.getSizeInBits();
}
/// bitsGE - Return true if this has no less bits than VT.
- inline bool bitsGE(MVT VT) const {
+ bool bitsGE(MVT VT) const {
return getSizeInBits() >= VT.getSizeInBits();
}
/// bitsLT - Return true if this has less bits than VT.
- inline bool bitsLT(MVT VT) const {
+ bool bitsLT(MVT VT) const {
return getSizeInBits() < VT.getSizeInBits();
}
/// bitsLE - Return true if this has no more bits than VT.
- inline bool bitsLE(MVT VT) const {
+ bool bitsLE(MVT VT) const {
return getSizeInBits() <= VT.getSizeInBits();
}
/// getSimpleVT - Return the SimpleValueType held in the specified
/// simple MVT.
- inline SimpleValueType getSimpleVT() const {
+ SimpleValueType getSimpleVT() const {
assert(isSimple() && "Expected a SimpleValueType!");
- return (SimpleValueType)V;
+ return SimpleValueType(V);
}
/// getVectorElementType - Given a vector type, return the type of
/// each element.
- inline MVT getVectorElementType() const {
+ MVT getVectorElementType() const {
assert(isVector() && "Invalid vector type!");
switch (V) {
- default: {
- assert(isExtended() && "Unknown simple vector type!");
- MVT VT;
- VT.V = V & ElementMask;
- return VT;
- }
+ default:
+ return getExtendedVectorElementType();
+ case v2i8 :
+ case v4i8 :
case v8i8 :
- case v16i8: return i8;
+ case v16i8:
+ case v32i8: return i8;
+ case v2i16:
case v4i16:
- case v8i16: return i16;
+ case v8i16:
+ case v16i16: return i16;
case v2i32:
- case v3i32:
- case v4i32: return i32;
+ case v4i32:
+ case v8i32: return i32;
case v1i64:
- case v2i64: return i64;
+ case v2i64:
+ case v4i64: return i64;
case v2f32:
- case v3f32:
- case v4f32: return f32;
- case v2f64: return f64;
+ case v4f32:
+ case v8f32: return f32;
+ case v2f64:
+ case v4f64: return f64;
}
}
/// getVectorNumElements - Given a vector type, return the number of
/// elements it contains.
- inline unsigned getVectorNumElements() const {
+ unsigned getVectorNumElements() const {
assert(isVector() && "Invalid vector type!");
switch (V) {
default:
- assert(isExtended() && "Unknown simple vector type!");
- return ((V & VectorMask) >> (32 - VectorBits)) - 1;
- case v16i8: return 16;
+ return getExtendedVectorNumElements();
+ case v32i8: return 32;
+ case v16i8:
+ case v16i16: return 16;
case v8i8 :
- case v8i16: return 8;
+ case v8i16:
+ case v8i32:
+ case v8f32: return 8;
+ case v4i8:
case v4i16:
case v4i32:
- case v4f32: return 4;
- case v3i32:
- case v3f32: return 3;
+ case v4i64:
+ case v4f32:
+ case v4f64: return 4;
+ case v2i8:
+ case v2i16:
case v2i32:
case v2i64:
case v2f32:
}
/// getSizeInBits - Return the size of the specified value type in bits.
- inline unsigned getSizeInBits() const {
+ unsigned getSizeInBits() const {
switch (V) {
+ case iPTR:
+ assert(0 && "Value type size is target-dependent. Ask TLI.");
+ case iPTRAny:
+ case iAny:
+ case fAny:
+ assert(0 && "Value type is overloaded.");
default:
- assert(isExtended() && "MVT has no known size!");
- if (isVector())
- return getVectorElementType().getSizeInBits()*getVectorNumElements();
- if (isInteger())
- return ((V & PrecisionMask) >> SimpleTypeBits) + 1;
- assert(false && "Unknown value type!");
- return 0;
+ return getExtendedSizeInBits();
case i1 : return 1;
case i8 : return 8;
- case i16 : return 16;
+ case i16 :
+ case v2i8: return 16;
case f32 :
- case i32 : return 32;
+ case i32 :
+ case v4i8:
+ case v2i16: return 32;
case f64 :
case i64 :
case v8i8:
case v1i64:
case v2f32: return 64;
case f80 : return 80;
- case v3i32:
- case v3f32: return 96;
case f128:
case ppcf128:
case i128:
case v2i64:
case v4f32:
case v2f64: return 128;
+ case v32i8:
+ case v16i16:
+ case v8i32:
+ case v4i64:
+ case v8f32:
+ case v4f64: return 256;
}
}
/// getStoreSizeInBits - Return the number of bits overwritten by a store
/// of the specified value type.
- inline unsigned getStoreSizeInBits() const {
+ unsigned getStoreSizeInBits() const {
return (getSizeInBits() + 7)/8*8;
}
/// getRoundIntegerType - Rounds the bit-width of the given integer MVT up
/// to the nearest power of two (and at least to eight), and returns the
/// integer MVT with that number of bits.
- inline MVT getRoundIntegerType() const {
+ MVT getRoundIntegerType() const {
assert(isInteger() && !isVector() && "Invalid integer type!");
unsigned BitWidth = getSizeInBits();
if (BitWidth <= 8)
return getIntegerVT(1 << Log2_32_Ceil(BitWidth));
}
- /// getIntegerVTBitMask - Return an integer with 1's every place there are
- /// bits in the specified integer value type. FIXME: Should return an apint.
- inline uint64_t getIntegerVTBitMask() const {
- assert(isInteger() && !isVector() && "Only applies to int scalars!");
- return ~uint64_t(0UL) >> (64-getSizeInBits());
+ /// isPow2VectorType - Retuns true if the given vector is a power of 2.
+ bool isPow2VectorType() const {
+ unsigned NElts = getVectorNumElements();
+ return !(NElts & (NElts - 1));
}
- /// getIntegerVTSignBit - Return an integer with a 1 in the position of the
- /// sign bit for the specified integer value type. FIXME: Should return an
- /// apint.
- inline uint64_t getIntegerVTSignBit() const {
- assert(isInteger() && !isVector() && "Only applies to int scalars!");
- return uint64_t(1UL) << (getSizeInBits()-1);
+ /// getPow2VectorType - Widens the length of the given vector MVT up to
+ /// the nearest power of 2 and returns that type.
+ MVT getPow2VectorType() const {
+ if (!isPow2VectorType()) {
+ unsigned NElts = getVectorNumElements();
+ unsigned Pow2NElts = 1 << Log2_32_Ceil(NElts);
+ return MVT::getVectorVT(getVectorElementType(), Pow2NElts);
+ }
+ else {
+ return *this;
+ }
}
/// getMVTString - This function returns value type as a string,
/// getTypeForMVT - This method returns an LLVM type corresponding to the
/// specified MVT. For integer types, this returns an unsigned type. Note
/// that this will abort for types that cannot be represented.
- const Type *getTypeForMVT() const;
+ const Type *getTypeForMVT(LLVMContext &Context) const;
/// getMVT - Return the value type corresponding to the specified type.
/// This returns all pointers as iPTR. If HandleUnknown is true, unknown
static MVT getMVT(const Type *Ty, bool HandleUnknown = false);
/// getRawBits - Represent the type as a bunch of bits.
- uint32_t getRawBits() const { return V; }
+ uintptr_t getRawBits() const { return V; }
/// compareRawBits - A meaningless but well-behaved order, useful for
/// constructing containers.
return L.getRawBits() < R.getRawBits();
}
};
+
+ private:
+ // 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.
+ static MVT getExtendedIntegerVT(unsigned BitWidth);
+ static MVT getExtendedVectorVT(MVT VT, unsigned NumElements);
+ bool isExtendedFloatingPoint() const;
+ bool isExtendedInteger() const;
+ bool isExtendedVector() const;
+ bool isExtended64BitVector() const;
+ bool isExtended128BitVector() const;
+ bool isExtended256BitVector() const;
+ MVT getExtendedVectorElementType() const;
+ unsigned getExtendedVectorNumElements() const;
+ unsigned getExtendedSizeInBits() const;
};
} // End llvm namespace
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