- class Type;
- class LLVMContext;
- struct EVT;
-
- /// MVT - Machine Value Type. Every type that is supported natively by some
- /// processor targeted by LLVM occurs here. This means that any legal value
- /// type can be represented by a MVT.
- class MVT {
- public:
- enum SimpleValueType {
- // If you change this numbering, you must change the values in
- // 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
- i16 = 3, // This is a 16 bit integer value
- i32 = 4, // This is a 32 bit integer value
- i64 = 5, // This is a 64 bit integer value
- i128 = 6, // This is a 128 bit integer 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
-
- Glue = 34, // This glues nodes together during pre-RA sched
-
- isVoid = 35, // This has no value
-
- untyped = 36, // This value takes a register, but has
- // unspecified type. The register class
- // will be determined by the opcode.
-
- LAST_VALUETYPE = 37, // 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 = 250,
-
- // 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 = 251,
-
- // vAny - A vector with any length and element size. This is used
- // for intrinsics that have overloadings based on vector types.
- // This is only for tblgen's consumption!
- vAny = 252,
-
- // fAny - Any floating-point or vector floating-point value. This is used
- // for intrinsics that have overloadings based on floating-point types.
- // This is only for tblgen's consumption!
- fAny = 253,
-
- // iAny - An integer or vector integer value of any bit width. This is
- // used for intrinsics that have overloadings based on integer bit widths.
- // This is only for tblgen's consumption!
- iAny = 254,
-
- // 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
- };
-
- SimpleValueType SimpleTy;
-
- MVT() : SimpleTy((SimpleValueType)(INVALID_SIMPLE_VALUE_TYPE)) {}
- MVT(SimpleValueType SVT) : SimpleTy(SVT) { }
-
- 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));
- }
-
- /// 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));
- }
-
- /// isVector - Return true if this is a vector value type.
- bool isVector() const {
- return (SimpleTy >= MVT::FIRST_VECTOR_VALUETYPE &&
- SimpleTy <= MVT::LAST_VECTOR_VALUETYPE);
- }
-
- /// isPow2VectorType - Returns true if the given vector is a power of 2.
- bool isPow2VectorType() const {
- unsigned NElts = getVectorNumElements();
- return !(NElts & (NElts - 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())
- return *this;
-
- unsigned NElts = getVectorNumElements();
- unsigned Pow2NElts = 1 << Log2_32_Ceil(NElts);
- return MVT::getVectorVT(getVectorElementType(), Pow2NElts);
- }
-
- /// getScalarType - If this is a vector type, return the element type,
- /// otherwise return this.
- MVT getScalarType() const {
- return isVector() ? getVectorElementType() : *this;
- }
-
- MVT getVectorElementType() const {
- switch (SimpleTy) {
- default:
- return (MVT::SimpleValueType)(MVT::INVALID_SIMPLE_VALUE_TYPE);
- case v2i8 :
- case v4i8 :
- case v8i8 :
- case v16i8:
- case v32i8: return i8;
- case v2i16:
- case v4i16:
- case v8i16:
- case v16i16: return i16;
- case v2i32:
- case v4i32:
- case v8i32: return i32;
- case v1i64:
- case v2i64:
- case v4i64:
- case v8i64: return i64;
- case v2f32:
- case v4f32:
- case v8f32: return f32;
- case v2f64:
- case v4f64: return f64;
- }
- }
-
- unsigned getVectorNumElements() const {
- switch (SimpleTy) {
- default:
- return ~0U;
- case v32i8: return 32;
- case v16i8:
- case v16i16: return 16;
- case v8i8 :
- case v8i16:
- case v8i32:
- case v8i64:
- case v8f32: return 8;
- case v4i8:
- case v4i16:
- case v4i32:
- case v4i64:
- case v4f32:
- case v4f64: return 4;
- case v2i8:
- case v2i16:
- case v2i32:
- case v2i64:
- case v2f32:
- case v2f64: return 2;
- case v1i64: return 1;
- }
- }
-
- unsigned getSizeInBits() const {
- switch (SimpleTy) {
- 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(0 && "getSizeInBits called on extended MVT.");
- case i1 : return 1;
- case i8 : return 8;
- case i16 :
- case v2i8: return 16;
- case f32 :
- case i32 :
- case v4i8:
- case v2i16: return 32;
- case x86mmx:
- case f64 :
- case i64 :
- case v8i8:
- case v4i16:
- case v2i32:
- case v1i64:
- case v2f32: return 64;
- case f80 : return 80;
- case f128:
- case ppcf128:
- case i128:
- case v16i8:
- case v8i16:
- case v4i32:
- case v2i64:
- case v4f32:
- case v2f64: return 128;
- case v32i8:
- case v16i16:
- case v8i32:
- case v4i64:
- case v8f32:
- case v4f64: return 256;
- case v8i64: return 512;
- }
- }
-
- /// 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;
- }
-
- static MVT getFloatingPointVT(unsigned BitWidth) {
- switch (BitWidth) {
- default:
- assert(false && "Bad bit width!");
- case 32:
- return MVT::f32;
- case 64:
- return MVT::f64;
- case 80:
- return MVT::f80;
- case 128:
- return MVT::f128;
- }
- }
-
- static MVT getIntegerVT(unsigned BitWidth) {
- switch (BitWidth) {
- default:
- return (MVT::SimpleValueType)(MVT::INVALID_SIMPLE_VALUE_TYPE);
- case 1:
- return MVT::i1;
- case 8:
- return MVT::i8;
- case 16:
- return MVT::i16;
- case 32:
- return MVT::i32;
- case 64:
- return MVT::i64;
- case 128:
- return MVT::i128;
- }
- }
-
- static MVT getVectorVT(MVT VT, unsigned NumElements) {
- switch (VT.SimpleTy) {
- default:
- 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;
- break;
- case MVT::i16:
- if (NumElements == 2) return MVT::v2i16;
- if (NumElements == 4) return MVT::v4i16;
- if (NumElements == 8) return MVT::v8i16;
- if (NumElements == 16) return MVT::v16i16;
- break;
- case MVT::i32:
- if (NumElements == 2) return MVT::v2i32;
- if (NumElements == 4) return MVT::v4i32;
- if (NumElements == 8) return MVT::v8i32;
- 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;
- break;
- case MVT::f32:
- if (NumElements == 2) return MVT::v2f32;
- if (NumElements == 4) return MVT::v4f32;
- if (NumElements == 8) return MVT::v8f32;
- break;
- case MVT::f64:
- if (NumElements == 2) return MVT::v2f64;
- if (NumElements == 4) return MVT::v4f64;
- break;
- }
- return (MVT::SimpleValueType)(MVT::INVALID_SIMPLE_VALUE_TYPE);
- }
- };