//===- 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
#ifndef LLVM_CODEGEN_VALUETYPES_H
#define LLVM_CODEGEN_VALUETYPES_H
+#include <cassert>
+#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
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
+ v16i8 = 17, // 16 x i8
+ v8i16 = 18, // 8 x i16
+ v4i32 = 19, // 4 x i32
+ v2i64 = 20, // 2 x i64
+
+ v2f32 = 21, // 2 x f32
+ v4f32 = 22, // 4 x f32
+ v2f64 = 23, // 2 x f64
+ FIRST_VECTOR_VALUETYPE = v8i8,
+ LAST_VECTOR_VALUETYPE = v2f64,
- isVoid = 11, // This has no value
+ LAST_VALUETYPE = 24, // This always remains at the end of the list.
+
+ // 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 >= v4f32 && 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::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.
+ ///
+ static inline ValueType getVectorType(ValueType VT, unsigned NumElements) {
+ switch (VT) {
+ default:
+ break;
+ case MVT::i8:
+ if (NumElements == 8) return MVT::v8i8;
+ if (NumElements == 16) return MVT::v16i8;
+ break;
+ case MVT::i16:
+ if (NumElements == 4) return MVT::v4i16;
+ if (NumElements == 8) return MVT::v8i16;
+ break;
+ case MVT::i32:
+ if (NumElements == 2) return MVT::v2i32;
+ if (NumElements == 4) return MVT::v4i32;
+ break;
+ case MVT::i64:
+ if (NumElements == 2) return MVT::v2i64;
+ break;
+ case MVT::f32:
+ if (NumElements == 2) return MVT::v2f32;
+ if (NumElements == 4) return MVT::v4f32;
+ break;
+ case MVT::f64:
+ if (NumElements == 2) return MVT::v2f64;
+ break;
+ }
+ return MVT::Other;
+ }
+
+ /// 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 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;
+ }
+ }
+
+ /// 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 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 ~0ULL >> (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 1ULL << (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);
+}
} // End llvm namespace