#define LLVM_CODEGEN_VALUETYPES_H
#include <cassert>
+#include <string>
#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.
+/// MVT namespace - This namespace defines the SimpleValueType enum, which
+/// contains the various low-level value types, and the ValueType typedef.
///
namespace MVT { // MVT = Machine Value Types
- enum ValueType {
+ enum SimpleValueType {
// If you change this numbering, you must change the values in ValueTypes.td
// well!
Other = 0, // This is a non-standard value
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
+ v8i8 = 13, // 8 x i8
+ v4i16 = 14, // 4 x i16
+ v2i32 = 15, // 2 x i32
+ v1i64 = 16, // 1 x i64
v16i8 = 17, // 16 x i8
v8i16 = 18, // 8 x i16
v4i32 = 19, // 4 x i32
FIRST_VECTOR_VALUETYPE = v8i8,
LAST_VECTOR_VALUETYPE = v2f64,
- LAST_VALUETYPE = 24 // This always remains at the end of the list.
+ LAST_VALUETYPE = 24, // 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::ValueType - This type holds low-level value types. Valid values
+ /// include any of the values in the SimpleValueType enum, or any value
+ /// returned from a function in the MVT namespace that has a ValueType
+ /// return type. Any value type equal to one of the SimpleValueType enum
+ /// values is a "simple" value type. All other value types 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.
+ ///
+ /// @internal
+ /// Currently extended types are always vector types. Extended types are
+ /// encoded by having the first SimpleTypeBits bits encode the vector
+ /// element type (which must be a scalar type) and the remaining upper
+ /// bits encode the vector length, offset by one.
+ typedef uint32_t ValueType;
+
+ static const int SimpleTypeBits = 8;
+
+ static const uint32_t SimpleTypeMask =
+ (~uint32_t(0) << (32 - SimpleTypeBits)) >> (32 - SimpleTypeBits);
+
+ /// MVT::isExtendedVT - Test if the given ValueType is extended
+ /// (as opposed to being simple).
+ static inline bool isExtendedVT(ValueType VT) {
+ return VT > SimpleTypeMask;
}
- /// MVT::isFloatingPoint - Return true if this is a simple FP, or a packed
- /// vector FP type.
+ /// MVT::isInteger - Return true if this is an integer, or a vector integer
+ /// type.
+ static inline bool isInteger(ValueType VT) {
+ ValueType SVT = VT & SimpleTypeMask;
+ return (SVT >= i1 && SVT <= i128) || (SVT >= v8i8 && SVT <= v2i64);
+ }
+
+ /// MVT::isFloatingPoint - Return true if this is an FP, or a vector FP type.
static inline bool isFloatingPoint(ValueType VT) {
- return (VT >= f32 && VT <= f128) || (VT >= v4f32 && VT <= v2f64);
+ ValueType SVT = VT & SimpleTypeMask;
+ return (SVT >= f32 && SVT <= f128) || (SVT >= v2f32 && SVT <= v2f64);
}
- /// MVT::isVector - Return true if this is a packed vector type (i.e. not
- /// MVT::Vector).
+ /// MVT::isVector - Return true if this is a vector value type.
static inline bool isVector(ValueType VT) {
- return VT >= FIRST_VECTOR_VALUETYPE && VT <= LAST_VECTOR_VALUETYPE;
+ return (VT >= FIRST_VECTOR_VALUETYPE && VT <= LAST_VECTOR_VALUETYPE) ||
+ isExtendedVT(VT);
+ }
+
+ /// MVT::getVectorElementType - Given a vector type, return the type of
+ /// each element.
+ static inline ValueType getVectorElementType(ValueType VT) {
+ switch (VT) {
+ default:
+ if (isExtendedVT(VT))
+ return VT & SimpleTypeMask;
+ 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 vector type, return the
+ /// number of elements it contains.
+ static inline unsigned getVectorNumElements(ValueType VT) {
+ switch (VT) {
+ default:
+ if (isExtendedVT(VT))
+ return ((VT & ~SimpleTypeMask) >> SimpleTypeBits) - 1;
+ 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::getSizeInBits - Return the size of the specified value type in bits.
+ /// 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!");
+ default:
+ if (isExtendedVT(VT))
+ return getSizeInBits(getVectorElementType(VT)) *
+ getVectorNumElements(VT);
+ assert(0 && "ValueType has no known size!");
case MVT::i1 : return 1;
case MVT::i8 : return 8;
case MVT::i16 : return 16;
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:
}
/// 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.
+ /// NumElements in length, where each element is of type VT.
///
static inline ValueType getVectorType(ValueType VT, unsigned NumElements) {
switch (VT) {
- default:
+ default:
break;
case MVT::i8:
if (NumElements == 8) return MVT::v8i8;
if (NumElements == 16) return MVT::v16i8;
- break;
+ break;
case MVT::i16:
if (NumElements == 4) return MVT::v4i16;
if (NumElements == 8) return MVT::v8i16;
- break;
+ break;
case MVT::i32:
if (NumElements == 2) return MVT::v2i32;
if (NumElements == 4) return MVT::v4i32;
- break;
+ break;
+ case MVT::i64:
+ if (NumElements == 1) return MVT::v1i64;
+ if (NumElements == 2) return MVT::v2i64;
+ break;
case MVT::f32:
if (NumElements == 2) return MVT::v2f32;
if (NumElements == 4) return MVT::v4f32;
- break;
+ break;
case MVT::f64:
if (NumElements == 2) return MVT::v2f64;
break;
}
- return MVT::Other;
+ ValueType Result = VT | ((NumElements + 1) << SimpleTypeBits);
+ assert(getVectorElementType(Result) == VT &&
+ "Bad vector element type!");
+ assert(getVectorNumElements(Result) == NumElements &&
+ "Bad vector length!");
+ return Result;
}
-
- /// 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::getIntVectorWithNumElements - Return any integer vector type that has
+ /// the specified number of elements.
+ static inline ValueType getIntVectorWithNumElements(unsigned NumElts) {
+ switch (NumElts) {
+ default: return getVectorType(i8, NumElts);
+ 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 ~0ULL >> (64-getSizeInBits(VT));
+ 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 1ULL << (getSizeInBits(VT)-1);
+ 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);
+ std::string 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 pointers as MVT::iPTR. If HandleUnknown is true,
+ /// unknown types are returned as Other, otherwise they are invalid.
+ ValueType getValueType(const Type *Ty, bool HandleUnknown = false);
}
} // End llvm namespace
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