X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FCodeGen%2FValueTypes.h;h=be16aa0c60ced2740f8fbf69d39bfaf867d5ea0b;hb=d743f0e8f2c1f878f578a928157dbe75d643b5bb;hp=b523b71a14be030a01167bbf8ae8d35d311dda8a;hpb=d0fde30ce850b78371fd1386338350591f9ff494;p=oota-llvm.git diff --git a/include/llvm/CodeGen/ValueTypes.h b/include/llvm/CodeGen/ValueTypes.h index b523b71a14b..be16aa0c60c 100644 --- a/include/llvm/CodeGen/ValueTypes.h +++ b/include/llvm/CodeGen/ValueTypes.h @@ -1,10 +1,10 @@ //===- CodeGen/ValueTypes.h - Low-Level Target independ. types --*- C++ -*-===// -// +// // The LLVM Compiler Infrastructure // // This file was developed by the LLVM research group and is distributed under // the University of Illinois Open Source License. See LICENSE.TXT for details. -// +// //===----------------------------------------------------------------------===// // // This file defines the set of low-level target independent types which various @@ -16,14 +16,18 @@ #ifndef LLVM_CODEGEN_VALUETYPES_H #define LLVM_CODEGEN_VALUETYPES_H +#include +#include "llvm/Support/DataTypes.h" + namespace llvm { + class Type; /// MVT namespace - This namespace defines the ValueType enum, which contains /// the various low-level value types. /// namespace MVT { // MVT = Machine Value Types enum ValueType { - // If you change this numbering, you must change the values in Target.td as + // If you change this numbering, you must change the values in ValueTypes.td // well! Other = 0, // This is a non-standard value i1 = 1, // This is a 1 bit integer value @@ -33,14 +37,177 @@ namespace MVT { // MVT = Machine Value Types i64 = 5, // This is a 64 bit integer value i128 = 6, // This is a 128 bit integer value - 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 + 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 + Flag = 11, // This is a condition code or machine flag. + + isVoid = 12, // This has no value + + Vector = 13, // This is an abstract vector type, which will + // be expanded into a target vector type, or scalars + // if no matching vector type is available. + + 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 + v4i32 = 20, // 4 x i32 + v2i64 = 21, // 2 x i64 + + v2f32 = 22, // 2 x f32 + v4f32 = 23, // 4 x f32 + v2f64 = 24, // 2 x f64 + FIRST_VECTOR_VALUETYPE = v8i8, + LAST_VECTOR_VALUETYPE = v2f64, - isVoid = 11, // This has no value + LAST_VALUETYPE = 25, // This always remains at the end of the list. + + // iAny - An 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 }; -}; + + /// MVT::isInteger - Return true if this is a simple integer, or a packed + /// vector integer type. + static inline bool isInteger(ValueType VT) { + return (VT >= i1 && VT <= i128) || (VT >= v8i8 && VT <= v2i64); + } + + /// MVT::isFloatingPoint - Return true if this is a simple FP, or a packed + /// vector FP type. + static inline bool isFloatingPoint(ValueType VT) { + return (VT >= f32 && VT <= f128) || (VT >= v2f32 && VT <= v2f64); + } + + /// MVT::isVector - Return true if this is a packed vector type (i.e. not + /// MVT::Vector). + static inline bool isVector(ValueType VT) { + return VT >= FIRST_VECTOR_VALUETYPE && VT <= LAST_VECTOR_VALUETYPE; + } + + /// MVT::getSizeInBits - Return the size of the specified value type in bits. + /// + static inline unsigned getSizeInBits(ValueType VT) { + switch (VT) { + default: assert(0 && "ValueType has no known size!"); + case MVT::i1 : return 1; + case MVT::i8 : return 8; + case MVT::i16 : return 16; + case MVT::f32 : + case MVT::i32 : return 32; + case MVT::f64 : + case MVT::i64 : + case MVT::v8i8: + case MVT::v4i16: + case MVT::v2i32: + case MVT::v1i64: + case MVT::v2f32: return 64; + case MVT::f80 : return 80; + case MVT::f128: + case MVT::i128: + case MVT::v16i8: + case MVT::v8i16: + case MVT::v4i32: + case MVT::v2i64: + case MVT::v4f32: + case MVT::v2f64: return 128; + } + } + + /// MVT::getVectorType - Returns the ValueType that represents a vector + /// NumElements in length, where each element is of type VT. If there is no + /// ValueType that represents this vector, a ValueType of Other is returned. + /// + ValueType getVectorType(ValueType VT, unsigned NumElements); + + /// MVT::getVectorBaseType - Given a packed vector type, return the type of + /// each element. + static inline ValueType getVectorBaseType(ValueType VT) { + switch (VT) { + default: assert(0 && "Invalid vector type!"); + case v8i8 : + case v16i8: return i8; + case v4i16: + case v8i16: return i16; + case v2i32: + case v4i32: return i32; + case v1i64: + case v2i64: return i64; + case v2f32: + case v4f32: return f32; + case v2f64: return f64; + } + } + + /// MVT::getVectorNumElements - Given a packed vector type, return the number + /// of elements it contains. + static inline unsigned getVectorNumElements(ValueType VT) { + switch (VT) { + default: assert(0 && "Invalid vector type!"); + case v16i8: return 16; + case v8i8 : + case v8i16: return 8; + case v4i16: + case v4i32: + case v4f32: return 4; + case v2i32: + case v2i64: + case v2f32: + case v2f64: return 2; + case v1i64: return 1; + } + } + + /// MVT::getIntVectorWithNumElements - Return any integer vector type that has + /// the specified number of elements. + static inline ValueType getIntVectorWithNumElements(unsigned NumElts) { + switch (NumElts) { + default: assert(0 && "Invalid vector type!"); + case 1: return v1i64; + case 2: return v2i32; + case 4: return v4i16; + case 8: return v8i8; + case 16: return v16i8; + } + } + + + /// MVT::getIntVTBitMask - Return an integer with 1's every place there are + /// bits in the specified integer value type. + static inline uint64_t getIntVTBitMask(ValueType VT) { + assert(isInteger(VT) && !isVector(VT) && "Only applies to int scalars!"); + return ~uint64_t(0UL) >> (64-getSizeInBits(VT)); + } + /// MVT::getIntVTSignBit - Return an integer with a 1 in the position of the + /// sign bit for the specified integer value type. + static inline uint64_t getIntVTSignBit(ValueType VT) { + assert(isInteger(VT) && !isVector(VT) && "Only applies to int scalars!"); + return uint64_t(1UL) << (getSizeInBits(VT)-1); + } + + /// MVT::getValueTypeString - This function returns value type as a string, + /// e.g. "i32". + const char *getValueTypeString(ValueType VT); + + /// MVT::getTypeForValueType - This method returns an LLVM type corresponding + /// to the specified ValueType. For integer types, this returns an unsigned + /// type. Note that this will abort for types that cannot be represented. + const Type *getTypeForValueType(ValueType VT); + + /// MVT::getValueType - Return the value type corresponding to the specified + /// type. This returns all vectors as MVT::Vector and all pointers as + /// MVT::iPTR. + ValueType getValueType(const Type *Ty); +} } // End llvm namespace