X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FCodeGen%2FValueTypes.h;h=929eb88a0393d91ce1cb169200319a5eda939a86;hb=HEAD;hp=a77ed50805796f2702b3366efeded612461e937e;hpb=e50ed30282bb5b4a9ed952580523f2dda16215ac;p=oota-llvm.git diff --git a/include/llvm/CodeGen/ValueTypes.h b/include/llvm/CodeGen/ValueTypes.h index a77ed508057..929eb88a039 100644 --- a/include/llvm/CodeGen/ValueTypes.h +++ b/include/llvm/CodeGen/ValueTypes.h @@ -16,223 +16,96 @@ #ifndef LLVM_CODEGEN_VALUETYPES_H #define LLVM_CODEGEN_VALUETYPES_H +#include "llvm/CodeGen/MachineValueType.h" #include #include -#include "llvm/Support/DataTypes.h" -#include "llvm/Support/MathExtras.h" namespace llvm { - class Type; - struct LLVMContext; - struct EVT { // EVT = Machine Value Type - 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 - Flag = 12, // This is a condition code or machine flag. - - isVoid = 13, // This has no value - - 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. - // EVT::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. - // 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 - }; + class LLVMContext; + class Type; + /// EVT - Extended Value Type. Capable of holding value types which are not + /// native for any processor (such as the i12345 type), as well as the types + /// a MVT can represent. + struct EVT { 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 EVT methods. Any value type equal to one of the SimpleValueType - /// enum values is a "simple" value type. All others are "extended". - /// - /// Note that simple doesn't necessary mean legal for the target machine. - /// All legal value types must be simple, but often there are some simple - /// value types that are not legal. - /// - union { - uintptr_t V; - const Type *LLVMTy; - }; + MVT V; + Type *LLVMTy; public: - EVT() {} - EVT(SimpleValueType S) : V(S) {} + LLVM_CONSTEXPR EVT() : V(MVT::INVALID_SIMPLE_VALUE_TYPE), LLVMTy(nullptr) {} + LLVM_CONSTEXPR EVT(MVT::SimpleValueType SVT) : V(SVT), LLVMTy(nullptr) {} + LLVM_CONSTEXPR EVT(MVT S) : V(S), LLVMTy(nullptr) {} - bool operator==(const EVT VT) const { - return getRawBits() == VT.getRawBits(); + bool operator==(EVT VT) const { + return !(*this != VT); } - bool operator!=(const EVT VT) const { - return getRawBits() != VT.getRawBits(); + bool operator!=(EVT VT) const { + if (V.SimpleTy != VT.V.SimpleTy) + return true; + if (V.SimpleTy < 0) + return LLVMTy != VT.LLVMTy; + return false; } /// getFloatingPointVT - Returns the EVT 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 EVT 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; - } + return MVT::getFloatingPointVT(BitWidth); } /// getIntegerVT - Returns the EVT that represents an integer with the given /// number of bits. - static EVT getIntegerVT(unsigned BitWidth) { - switch (BitWidth) { - default: - break; - case 1: - return i1; - case 8: - return i8; - case 16: - return i16; - case 32: - return i32; - case 64: - return i64; - case 128: - return i128; - } - return getExtendedIntegerVT(BitWidth); + static EVT getIntegerVT(LLVMContext &Context, unsigned BitWidth) { + MVT M = MVT::getIntegerVT(BitWidth); + if (M.SimpleTy >= 0) + return M; + return getExtendedIntegerVT(Context, BitWidth); } /// getVectorVT - Returns the EVT that represents a vector NumElements in /// length, where each element is of type VT. - static EVT getVectorVT(EVT 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 == 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 == 4) return v4f32; - if (NumElements == 8) return v8f32; - break; - case f64: - if (NumElements == 2) return v2f64; - if (NumElements == 4) return v4f64; - break; - } - return getExtendedVectorVT(VT, NumElements); - } - - /// getIntVectorWithNumElements - Return any integer vector type that has - /// the specified number of elements. - static EVT getIntVectorWithNumElements(unsigned NumElts) { - switch (NumElts) { - default: return getVectorVT(i8, NumElts); - case 1: return v1i64; - case 2: return v2i32; - case 4: return v4i16; - case 8: return v8i8; - case 16: return v16i8; - } + static EVT getVectorVT(LLVMContext &Context, EVT VT, unsigned NumElements) { + MVT M = MVT::getVectorVT(VT.V, NumElements); + if (M.SimpleTy >= 0) + return M; + return getExtendedVectorVT(Context, VT, NumElements); + } + + /// 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; + } + + /// Return the type converted to an equivalently sized integer or vector + /// with integer element type. Similar to changeVectorElementTypeToInteger, + /// but also handles scalars. + EVT changeTypeToInteger() { + if (isVector()) + return changeVectorElementTypeToInteger(); + + if (isSimple()) + return MVT::getIntegerVT(getSizeInBits()); + + return changeExtendedTypeToInteger(); } /// isSimple - Test if the given EVT is simple (as opposed to being /// extended). bool isSimple() const { - return V <= LastSimpleValueType; + return V.SimpleTy >= 0; } /// isExtended - Test if the given EVT is extended (as opposed to @@ -243,45 +116,62 @@ namespace llvm { /// isFloatingPoint - Return true if this is a FP, or a vector FP type. bool isFloatingPoint() const { - return isSimple() ? - ((V >= f32 && V <= ppcf128) || - (V >= v2f32 && V <= v4f64)) : isExtendedFloatingPoint(); + return isSimple() ? V.isFloatingPoint() : isExtendedFloatingPoint(); } /// isInteger - Return true if this is an integer, or a vector integer type. bool isInteger() const { - return isSimple() ? - ((V >= FIRST_INTEGER_VALUETYPE && V <= LAST_INTEGER_VALUETYPE) || - (V >= v2i8 && V <= v4i64)) : isExtendedInteger(); + return isSimple() ? V.isInteger() : isExtendedInteger(); } /// isVector - Return true if this is a vector value type. bool isVector() const { - return isSimple() ? - (V >= FIRST_VECTOR_VALUETYPE && V <= LAST_VECTOR_VALUETYPE) : - isExtendedVector(); + 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 { - return isSimple() ? - (V==v8i8 || V==v4i16 || V==v2i32 || V==v1i64 || V==v2f32) : - isExtended64BitVector(); + return isSimple() ? V.is64BitVector() : isExtended64BitVector(); } /// is128BitVector - Return true if this is a 128-bit vector type. bool is128BitVector() const { - return isSimple() ? - (V==v16i8 || V==v8i16 || V==v4i32 || - V==v2i64 || V==v4f32 || V==v2f64) : - isExtended128BitVector(); + return isSimple() ? V.is128BitVector() : 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(); + bool is256BitVector() const { + return isSimple() ? V.is256BitVector() : isExtended256BitVector(); + } + + /// is512BitVector - Return true if this is a 512-bit vector type. + 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(); + } + + /// is2048BitVector - Return true if this is a 2048-bit vector type. + bool is2048BitVector() const { + return isSimple() ? V.is2048BitVector() : isExtended2048BitVector(); + } + + /// isOverloaded - Return true if this is an overloaded type for TableGen. + bool isOverloaded() const { + return (V==MVT::iAny || V==MVT::fAny || V==MVT::vAny || V==MVT::iPTRAny); } /// isByteSized - Return true if the bit size is a multiple of 8. @@ -297,161 +187,125 @@ namespace llvm { /// bitsEq - Return true if this has the same number of bits as VT. bool bitsEq(EVT VT) const { + if (EVT::operator==(VT)) return true; return getSizeInBits() == VT.getSizeInBits(); } /// bitsGT - Return true if this has more bits than VT. bool bitsGT(EVT VT) const { + if (EVT::operator==(VT)) return false; return getSizeInBits() > VT.getSizeInBits(); } /// bitsGE - Return true if this has no less bits than VT. bool bitsGE(EVT VT) const { + if (EVT::operator==(VT)) return true; return getSizeInBits() >= VT.getSizeInBits(); } /// bitsLT - Return true if this has less bits than VT. bool bitsLT(EVT VT) const { + if (EVT::operator==(VT)) return false; return getSizeInBits() < VT.getSizeInBits(); } /// bitsLE - Return true if this has no more bits than VT. bool bitsLE(EVT VT) const { + if (EVT::operator==(VT)) return true; return getSizeInBits() <= VT.getSizeInBits(); } /// getSimpleVT - Return the SimpleValueType held in the specified /// simple EVT. - SimpleValueType getSimpleVT() const { + MVT getSimpleVT() const { assert(isSimple() && "Expected a SimpleValueType!"); - return SimpleValueType(V); + return V; + } + + /// getScalarType - If this is a vector type, return the element type, + /// otherwise return this. + EVT getScalarType() const { + return isVector() ? getVectorElementType() : *this; } /// getVectorElementType - Given a vector type, return the type of /// each element. EVT getVectorElementType() const { assert(isVector() && "Invalid vector type!"); - switch (V) { - default: - return getExtendedVectorElementType(); - 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: return i64; - case v2f32: - case v4f32: - case v8f32: return f32; - case v2f64: - case v4f64: return f64; - } + if (isSimple()) + return V.getVectorElementType(); + return getExtendedVectorElementType(); } /// getVectorNumElements - Given a vector type, return the number of /// elements it contains. unsigned getVectorNumElements() const { assert(isVector() && "Invalid vector type!"); - switch (V) { - default: - return getExtendedVectorNumElements(); - case v32i8: return 32; - case v16i8: - case v16i16: return 16; - case v8i8 : - case v8i16: - case v8i32: - 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; - } + if (isSimple()) + return V.getVectorNumElements(); + return getExtendedVectorNumElements(); } /// getSizeInBits - Return the size of the specified value type in bits. 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: - return getExtendedSizeInBits(); - 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 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; - } + if (isSimple()) + return V.getSizeInBits(); + return getExtendedSizeInBits(); + } + + unsigned getScalarSizeInBits() const { + return getScalarType().getSizeInBits(); + } + + /// 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 (getSizeInBits() + 7)/8*8; + return getStoreSize() * 8; } /// getRoundIntegerType - Rounds the bit-width of the given integer EVT up /// to the nearest power of two (and at least to eight), and returns the /// integer EVT with that number of bits. - EVT getRoundIntegerType() const { + EVT getRoundIntegerType(LLVMContext &Context) const { assert(isInteger() && !isVector() && "Invalid integer type!"); unsigned BitWidth = getSizeInBits(); if (BitWidth <= 8) - return i8; - else - return getIntegerVT(1 << Log2_32_Ceil(BitWidth)); + return EVT(MVT::i8); + return getIntegerVT(Context, 1 << Log2_32_Ceil(BitWidth)); } - /// isPow2VectorType - Retuns true if the given vector is a power of 2. + /// getHalfSizedIntegerVT - Finds the smallest simple value type that is + /// greater than or equal to half the width of this EVT. If no simple + /// value type can be found, an extended integer value type of half the + /// size (rounded up) is returned. + EVT getHalfSizedIntegerVT(LLVMContext &Context) const { + assert(isInteger() && !isVector() && "Invalid integer type!"); + unsigned EVTSize = getSizeInBits(); + for (unsigned IntVT = MVT::FIRST_INTEGER_VALUETYPE; + IntVT <= MVT::LAST_INTEGER_VALUETYPE; ++IntVT) { + EVT HalfVT = EVT((MVT::SimpleValueType)IntVT); + if (HalfVT.getSizeInBits() * 2 >= EVTSize) + return HalfVT; + } + return getIntegerVT(Context, (EVTSize + 1) / 2); + } + + /// \brief Return a VT for an integer vector type with the size of the + /// elements doubled. The typed returned may be an extended type. + EVT widenIntegerVectorElementType(LLVMContext &Context) const { + EVT EltVT = getVectorElementType(); + EltVT = EVT::getIntegerVT(Context, 2 * EltVT.getSizeInBits()); + return EVT::getVectorVT(Context, EltVT, getVectorNumElements()); + } + + /// isPow2VectorType - Returns true if the given vector is a power of 2. bool isPow2VectorType() const { unsigned NElts = getVectorNumElements(); return !(NElts & (NElts - 1)); @@ -459,11 +313,11 @@ namespace llvm { /// getPow2VectorType - Widens the length of the given vector EVT up to /// the nearest power of 2 and returns that type. - EVT getPow2VectorType() const { + EVT getPow2VectorType(LLVMContext &Context) const { if (!isPow2VectorType()) { unsigned NElts = getVectorNumElements(); unsigned Pow2NElts = 1 << Log2_32_Ceil(NElts); - return EVT::getVectorVT(getVectorElementType(), Pow2NElts); + return EVT::getVectorVT(Context, getVectorElementType(), Pow2NElts); } else { return *this; @@ -477,21 +331,28 @@ namespace llvm { /// 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() 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); - /// getRawBits - Represent the type as a bunch of bits. - uintptr_t getRawBits() const { return V; } + intptr_t getRawBits() const { + if (isSimple()) + return V.SimpleTy; + else + return (intptr_t)(LLVMTy); + } /// compareRawBits - A meaningless but well-behaved order, useful for /// constructing containers. struct compareRawBits { bool operator()(EVT L, EVT R) const { - return L.getRawBits() < R.getRawBits(); + if (L.V.SimpleTy == R.V.SimpleTy) + return L.LLVMTy < R.LLVMTy; + else + return L.V.SimpleTy < R.V.SimpleTy; } }; @@ -499,16 +360,24 @@ namespace llvm { // 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 EVT getExtendedIntegerVT(unsigned BitWidth); - static EVT getExtendedVectorVT(EVT VT, unsigned NumElements); - bool isExtendedFloatingPoint() const; - bool isExtendedInteger() const; - bool isExtendedVector() const; - bool isExtended64BitVector() const; - bool isExtended128BitVector() const; - bool isExtended256BitVector() const; + EVT changeExtendedTypeToInteger() const; + EVT changeExtendedVectorElementTypeToInteger() const; + static EVT getExtendedIntegerVT(LLVMContext &C, unsigned BitWidth); + static EVT getExtendedVectorVT(LLVMContext &C, EVT VT, + unsigned NumElements); + bool isExtendedFloatingPoint() const LLVM_READONLY; + bool isExtendedInteger() const LLVM_READONLY; + bool isExtendedVector() const LLVM_READONLY; + bool isExtended16BitVector() const LLVM_READONLY; + bool isExtended32BitVector() const LLVM_READONLY; + bool isExtended64BitVector() const LLVM_READONLY; + bool isExtended128BitVector() const LLVM_READONLY; + bool isExtended256BitVector() const LLVM_READONLY; + bool isExtended512BitVector() const LLVM_READONLY; + bool isExtended1024BitVector() const LLVM_READONLY; + bool isExtended2048BitVector() const LLVM_READONLY; EVT getExtendedVectorElementType() const; - unsigned getExtendedVectorNumElements() const; + unsigned getExtendedVectorNumElements() const LLVM_READONLY; unsigned getExtendedSizeInBits() const; };