| Safe Haskell | None |
|---|---|
| Language | Haskell2010 |
Futhark.Analysis.ScalExp
Synopsis
- data RelOp0
- data ScalExp
- = Val PrimValue
- | Id VName PrimType
- | SNeg ScalExp
- | SNot ScalExp
- | SAbs ScalExp
- | SSignum ScalExp
- | SPlus ScalExp ScalExp
- | SMinus ScalExp ScalExp
- | STimes ScalExp ScalExp
- | SPow ScalExp ScalExp
- | SDiv ScalExp ScalExp
- | SMod ScalExp ScalExp
- | SQuot ScalExp ScalExp
- | SRem ScalExp ScalExp
- | MaxMin Bool [ScalExp]
- | RelExp RelOp0 ScalExp
- | SLogAnd ScalExp ScalExp
- | SLogOr ScalExp ScalExp
- scalExpType :: ScalExp -> PrimType
- scalExpSize :: ScalExp -> Int
- subExpToScalExp :: SubExp -> PrimType -> ScalExp
- toScalExp :: (HasScope t f, Monad f) => LookupVar -> Exp lore -> f (Maybe ScalExp)
- expandScalExp :: LookupVar -> ScalExp -> ScalExp
- type LookupVar = VName -> Maybe ScalExp
- data ConvOp
- data CmpOp
- data BinOp
- = Add IntType
- | FAdd FloatType
- | Sub IntType
- | FSub FloatType
- | Mul IntType
- | FMul FloatType
- | UDiv IntType
- | FDiv FloatType
- | UMod IntType
- | SMin IntType
- | UMin IntType
- | FMin FloatType
- | SMax IntType
- | UMax IntType
- | FMax FloatType
- | Shl IntType
- | LShr IntType
- | AShr IntType
- | And IntType
- | Or IntType
- | Xor IntType
- | Pow IntType
- | FPow FloatType
- | LogAnd
- | LogOr
- data UnOp
- data PrimValue
- = IntValue !IntValue
- | FloatValue !FloatValue
- | BoolValue !Bool
- | Checked
- data FloatValue
- data IntValue
- = Int8Value !Int8
- | Int16Value !Int16
- | Int32Value !Int32
- | Int64Value !Int64
- data PrimType
- data FloatType
- data IntType
- allIntTypes :: [IntType]
- allFloatTypes :: [FloatType]
- allPrimTypes :: [PrimType]
- intValue :: Integral int => IntType -> int -> IntValue
- intValueType :: IntValue -> IntType
- valueIntegral :: Integral int => IntValue -> int
- floatValue :: Real num => FloatType -> num -> FloatValue
- floatValueType :: FloatValue -> FloatType
- primValueType :: PrimValue -> PrimType
- blankPrimValue :: PrimType -> PrimValue
- allUnOps :: [UnOp]
- allBinOps :: [BinOp]
- allCmpOps :: [CmpOp]
- allConvOps :: [ConvOp]
- doUnOp :: UnOp -> PrimValue -> Maybe PrimValue
- doComplement :: IntValue -> IntValue
- doAbs :: IntValue -> IntValue
- doFAbs :: FloatValue -> FloatValue
- doSSignum :: IntValue -> IntValue
- doUSignum :: IntValue -> IntValue
- doBinOp :: BinOp -> PrimValue -> PrimValue -> Maybe PrimValue
- doAdd :: IntValue -> IntValue -> IntValue
- doMul :: IntValue -> IntValue -> IntValue
- doSDiv :: IntValue -> IntValue -> Maybe IntValue
- doSMod :: IntValue -> IntValue -> Maybe IntValue
- doPow :: IntValue -> IntValue -> Maybe IntValue
- doConvOp :: ConvOp -> PrimValue -> Maybe PrimValue
- doZExt :: IntValue -> IntType -> IntValue
- doSExt :: IntValue -> IntType -> IntValue
- doFPConv :: FloatValue -> FloatType -> FloatValue
- doFPToUI :: FloatValue -> IntType -> IntValue
- doFPToSI :: FloatValue -> IntType -> IntValue
- doUIToFP :: IntValue -> FloatType -> FloatValue
- doSIToFP :: IntValue -> FloatType -> FloatValue
- doCmpOp :: CmpOp -> PrimValue -> PrimValue -> Maybe Bool
- doCmpEq :: PrimValue -> PrimValue -> Bool
- doCmpUlt :: IntValue -> IntValue -> Bool
- doCmpUle :: IntValue -> IntValue -> Bool
- doCmpSlt :: IntValue -> IntValue -> Bool
- doCmpSle :: IntValue -> IntValue -> Bool
- doFCmpLt :: FloatValue -> FloatValue -> Bool
- doFCmpLe :: FloatValue -> FloatValue -> Bool
- intToWord64 :: IntValue -> Word64
- intToInt64 :: IntValue -> Int64
- binOpType :: BinOp -> PrimType
- cmpOpType :: CmpOp -> PrimType
- unOpType :: UnOp -> PrimType
- convOpType :: ConvOp -> (PrimType, PrimType)
- primFuns :: Map String ([PrimType], PrimType, [PrimValue] -> Maybe PrimValue)
- zeroIsh :: PrimValue -> Bool
- oneIsh :: PrimValue -> Bool
- negativeIsh :: PrimValue -> Bool
- primBitSize :: PrimType -> Int
- primByteSize :: Num a => PrimType -> a
- intByteSize :: Num a => IntType -> a
- floatByteSize :: Num a => FloatType -> a
- commutativeBinOp :: BinOp -> Bool
- convOpFun :: ConvOp -> String
- prettySigned :: Bool -> PrimType -> String
Documentation
Relational operators.
Representation of a scalar expression, which is:
(i) an algebraic expression, e.g., min(a+b, a*b),
(ii) a relational expression: a+b < 5,
(iii) a logical expression: e1 and (not (a+b>5)
Constructors
scalExpType :: ScalExp -> PrimType Source #
scalExpSize :: ScalExp -> Int Source #
Number of nodes in the scalar expression.
subExpToScalExp :: SubExp -> PrimType -> ScalExp Source #
Non-recursively convert a subexpression to a ScalExp. The
(scalar) type of the subexpression must be given in advance.
expandScalExp :: LookupVar -> ScalExp -> ScalExp Source #
If you have a scalar expression that has been created with
incomplete symbol table information, you can use this function to
grow its Id leaves.
type LookupVar = VName -> Maybe ScalExp Source #
A function that checks whether a variable name corresponds to a scalar expression.
Conversion operators try to generalise the from t0 x to t1
instructions from LLVM.
Constructors
| ZExt IntType IntType | Zero-extend the former integer type to the latter. If the new type is smaller, the result is a truncation. |
| SExt IntType IntType | Sign-extend the former integer type to the latter. If the new type is smaller, the result is a truncation. |
| FPConv FloatType FloatType | Convert value of the former floating-point type to the latter. If the new type is smaller, the result is a truncation. |
| FPToUI FloatType IntType | Convert a floating-point value to the nearest unsigned integer (rounding towards zero). |
| FPToSI FloatType IntType | Convert a floating-point value to the nearest signed integer (rounding towards zero). |
| UIToFP IntType FloatType | Convert an unsigned integer to a floating-point value. |
| SIToFP IntType FloatType | Convert a signed integer to a floating-point value. |
| IToB IntType | Convert an integer to a boolean value. Zero becomes false; anything else is true. |
| BToI IntType | Convert a boolean to an integer. True is converted to 1 and False to 0. |
Comparison operators are like BinOps, but they return PrimTypes.
The somewhat ugly constructor names are straight out of LLVM.
Constructors
| CmpEq PrimType | All types equality. |
| CmpUlt IntType | Unsigned less than. |
| CmpUle IntType | Unsigned less than or equal. |
| CmpSlt IntType | Signed less than. |
| CmpSle IntType | Signed less than or equal. |
| FCmpLt FloatType | Floating-point less than. |
| FCmpLe FloatType | Floating-point less than or equal. |
| CmpLlt | Boolean less than. |
| CmpLle | Boolean less than or equal. |
Binary operators. These correspond closely to the binary operators in LLVM. Most are parametrised by their expected input and output types.
Constructors
| Add IntType | Integer addition. |
| FAdd FloatType | Floating-point addition. |
| Sub IntType | Integer subtraction. |
| FSub FloatType | Floating-point subtraction. |
| Mul IntType | Integer multiplication. |
| FMul FloatType | Floating-point multiplication. |
| UDiv IntType | Unsigned integer division. Rounds towards negativity infinity. Note: this is different from LLVM. |
| FDiv FloatType | Floating-point division. |
| UMod IntType | Unsigned integer modulus; the countepart to |
| SMin IntType | Returns the smallest of two signed integers. |
| UMin IntType | Returns the smallest of two unsigned integers. |
| FMin FloatType | Returns the smallest of two floating-point numbers. |
| SMax IntType | Returns the greatest of two signed integers. |
| UMax IntType | Returns the greatest of two unsigned integers. |
| FMax FloatType | Returns the greatest of two floating-point numbers. |
| Shl IntType | Left-shift. |
| LShr IntType | Logical right-shift, zero-extended. |
| AShr IntType | Arithmetic right-shift, sign-extended. |
| And IntType | Bitwise and. |
| Or IntType | Bitwise or. |
| Xor IntType | Bitwise exclusive-or. |
| Pow IntType | Integer exponentiation. |
| FPow FloatType | Floating-point exponentiation. |
| LogAnd | Boolean and - not short-circuiting. |
| LogOr | Boolean or - not short-circuiting. |
Various unary operators. It is a bit ad-hoc what is a unary operator and what is a built-in function. Perhaps these should all go away eventually.
Constructors
| Not | E.g., |
| Complement IntType | E.g., |
| Abs IntType |
|
| FAbs FloatType |
|
| USignum IntType | Unsigned sign function: |
Non-array values.
Constructors
| IntValue !IntValue | |
| FloatValue !FloatValue | |
| BoolValue !Bool | |
| Checked | The only value of type |
Instances
| Eq PrimValue Source # | |
| Ord PrimValue Source # | |
Defined in Futhark.Representation.Primitive | |
| Show PrimValue Source # | |
| ToExp PrimValue Source # | |
| Pretty PrimValue Source # | |
| IsValue PrimValue Source # | |
data FloatValue Source #
A floating-point value.
Constructors
| Float32Value !Float | |
| Float64Value !Double |
Instances
An integer value.
Constructors
| Int8Value !Int8 | |
| Int16Value !Int16 | |
| Int32Value !Int32 | |
| Int64Value !Int64 |
Low-level primitive types.
Instances
| Bounded PrimType Source # | |
| Enum PrimType Source # | |
Defined in Futhark.Representation.Primitive | |
| Eq PrimType Source # | |
| Ord PrimType Source # | |
Defined in Futhark.Representation.Primitive | |
| Show PrimType Source # | |
| Pretty PrimType Source # | |
A floating point type.
Instances
| Bounded FloatType Source # | |
| Enum FloatType Source # | |
Defined in Futhark.Representation.Primitive Methods succ :: FloatType -> FloatType # pred :: FloatType -> FloatType # fromEnum :: FloatType -> Int # enumFrom :: FloatType -> [FloatType] # enumFromThen :: FloatType -> FloatType -> [FloatType] # enumFromTo :: FloatType -> FloatType -> [FloatType] # enumFromThenTo :: FloatType -> FloatType -> FloatType -> [FloatType] # | |
| Eq FloatType Source # | |
| Ord FloatType Source # | |
Defined in Futhark.Representation.Primitive | |
| Show FloatType Source # | |
| Pretty FloatType Source # | |
An integer type, ordered by size. Note that signedness is not a property of the type, but a property of the operations performed on values of these types.
Instances
| Bounded IntType Source # | |
| Enum IntType Source # | |
| Eq IntType Source # | |
| Ord IntType Source # | |
Defined in Futhark.Representation.Primitive | |
| Show IntType Source # | |
| Pretty IntType Source # | |
allIntTypes :: [IntType] Source #
A list of all integer types.
allFloatTypes :: [FloatType] Source #
A list of all floating-point types.
allPrimTypes :: [PrimType] Source #
A list of all primitive types.
intValueType :: IntValue -> IntType Source #
floatValue :: Real num => FloatType -> num -> FloatValue Source #
Create a FloatValue from a type and a Rational.
floatValueType :: FloatValue -> FloatType Source #
primValueType :: PrimValue -> PrimType Source #
The type of a basic value.
blankPrimValue :: PrimType -> PrimValue Source #
A "blank" value of the given primitive type - this is zero, or whatever is close to it. Don't depend on this value, but use it for e.g. creating arrays to be populated by do-loops.
allConvOps :: [ConvOp] Source #
A list of all conversion operators for all types.
doComplement :: IntValue -> IntValue Source #
E.g., ~(~1) = 1.
doFAbs :: FloatValue -> FloatValue Source #
abs(-2.0) = 2.0.
doSDiv :: IntValue -> IntValue -> Maybe IntValue Source #
Signed integer division. Rounds towards negativity infinity. Note: this is different from LLVM.
doSMod :: IntValue -> IntValue -> Maybe IntValue Source #
Signed integer modulus; the countepart to SDiv.
doZExt :: IntValue -> IntType -> IntValue Source #
Zero-extend the given integer value to the size of the given type. If the type is smaller than the given value, the result is a truncation.
doSExt :: IntValue -> IntType -> IntValue Source #
Sign-extend the given integer value to the size of the given type. If the type is smaller than the given value, the result is a truncation.
doFPConv :: FloatValue -> FloatType -> FloatValue Source #
Convert the former floating-point type to the latter.
doFPToUI :: FloatValue -> IntType -> IntValue Source #
Convert a floating-point value to the nearest unsigned integer (rounding towards zero).
doFPToSI :: FloatValue -> IntType -> IntValue Source #
Convert a floating-point value to the nearest signed integer (rounding towards zero).
doUIToFP :: IntValue -> FloatType -> FloatValue Source #
Convert an unsigned integer to a floating-point value.
doSIToFP :: IntValue -> FloatType -> FloatValue Source #
Convert a signed integer to a floating-point value.
doCmpEq :: PrimValue -> PrimValue -> Bool Source #
Compare any two primtive values for exact equality.
doFCmpLt :: FloatValue -> FloatValue -> Bool Source #
Floating-point less than.
doFCmpLe :: FloatValue -> FloatValue -> Bool Source #
Floating-point less than or equal.
intToWord64 :: IntValue -> Word64 Source #
intToInt64 :: IntValue -> Int64 Source #
convOpType :: ConvOp -> (PrimType, PrimType) Source #
The input and output types of a conversion operator.
primFuns :: Map String ([PrimType], PrimType, [PrimValue] -> Maybe PrimValue) Source #
A mapping from names of primitive functions to their parameter types, their result type, and a function for evaluating them.
negativeIsh :: PrimValue -> Bool Source #
Is the given value kind of negative?
primBitSize :: PrimType -> Int Source #
The size of a value of a given primitive type in bites.
primByteSize :: Num a => PrimType -> a Source #
The size of a value of a given primitive type in eight-bit bytes.
intByteSize :: Num a => IntType -> a Source #
The size of a value of a given integer type in eight-bit bytes.
floatByteSize :: Num a => FloatType -> a Source #
The size of a value of a given floating-point type in eight-bit bytes.
commutativeBinOp :: BinOp -> Bool Source #
True if the given binary operator is commutative.