import TyCon ( tyConDataConsIfAvailable, isEnumerationTyCon, isNewTyCon )
import DataCon ( dataConTag, dataConTyCon, dataConId, fIRST_TAG )
import CoreUtils ( exprIsValue, cheapEqExpr, exprIsConApp_maybe )
-import Type ( tyConAppTyCon )
+import Type ( tyConAppTyCon, eqType )
import OccName ( occNameUserString)
import PrelNames ( unpackCStringFoldrName, unpackCStringFoldrIdKey, hasKey )
import Name ( Name )
\begin{code}
-primOpRule :: PrimOp -> CoreRule
-primOpRule op
- = BuiltinRule (primop_rule op)
+primOpRule :: PrimOp -> Maybe CoreRule
+primOpRule op = fmap BuiltinRule (primop_rule op)
where
op_name = _PK_ (occNameUserString (primOpOcc op))
op_name_case = op_name _APPEND_ SLIT("->case")
-- ToDo: something for integer-shift ops?
-- NotOp
- primop_rule SeqOp = seqRule
- primop_rule TagToEnumOp = tagToEnumRule
- primop_rule DataToTagOp = dataToTagRule
+ primop_rule SeqOp = Just seqRule
+ primop_rule TagToEnumOp = Just tagToEnumRule
+ primop_rule DataToTagOp = Just dataToTagRule
-- Int operations
- primop_rule IntAddOp = twoLits (intOp2 (+) op_name)
- primop_rule IntSubOp = twoLits (intOp2 (-) op_name)
- primop_rule IntMulOp = twoLits (intOp2 (*) op_name)
- primop_rule IntQuotOp = twoLits (intOp2Z quot op_name)
- primop_rule IntRemOp = twoLits (intOp2Z rem op_name)
- primop_rule IntNegOp = oneLit (negOp op_name)
+ primop_rule IntAddOp = Just (twoLits (intOp2 (+) op_name))
+ primop_rule IntSubOp = Just (twoLits (intOp2 (-) op_name))
+ primop_rule IntMulOp = Just (twoLits (intOp2 (*) op_name))
+ primop_rule IntQuotOp = Just (twoLits (intOp2Z quot op_name))
+ primop_rule IntRemOp = Just (twoLits (intOp2Z rem op_name))
+ primop_rule IntNegOp = Just (oneLit (negOp op_name))
-- Word operations
#if __GLASGOW_HASKELL__ >= 500
- primop_rule WordAddOp = twoLits (wordOp2 (+) op_name)
- primop_rule WordSubOp = twoLits (wordOp2 (-) op_name)
- primop_rule WordMulOp = twoLits (wordOp2 (*) op_name)
+ primop_rule WordAddOp = Just (twoLits (wordOp2 (+) op_name))
+ primop_rule WordSubOp = Just (twoLits (wordOp2 (-) op_name))
+ primop_rule WordMulOp = Just (twoLits (wordOp2 (*) op_name))
#endif
- primop_rule WordQuotOp = twoLits (wordOp2Z quot op_name)
- primop_rule WordRemOp = twoLits (wordOp2Z rem op_name)
+ primop_rule WordQuotOp = Just (twoLits (wordOp2Z quot op_name))
+ primop_rule WordRemOp = Just (twoLits (wordOp2Z rem op_name))
#if __GLASGOW_HASKELL__ >= 407
- primop_rule AndOp = twoLits (wordBitOp2 (.&.) op_name)
- primop_rule OrOp = twoLits (wordBitOp2 (.|.) op_name)
- primop_rule XorOp = twoLits (wordBitOp2 xor op_name)
+ primop_rule AndOp = Just (twoLits (wordBitOp2 (.&.) op_name))
+ primop_rule OrOp = Just (twoLits (wordBitOp2 (.|.) op_name))
+ primop_rule XorOp = Just (twoLits (wordBitOp2 xor op_name))
#endif
-- coercions
- primop_rule Word2IntOp = oneLit (litCoerce word2IntLit op_name)
- primop_rule Int2WordOp = oneLit (litCoerce int2WordLit op_name)
- primop_rule IntToInt8Op = oneLit (litCoerce intToInt8Lit op_name)
- primop_rule IntToInt16Op = oneLit (litCoerce intToInt16Lit op_name)
- primop_rule IntToInt32Op = oneLit (litCoerce intToInt32Lit op_name)
- primop_rule WordToWord8Op = oneLit (litCoerce wordToWord8Lit op_name)
- primop_rule WordToWord16Op = oneLit (litCoerce wordToWord16Lit op_name)
- primop_rule WordToWord32Op = oneLit (litCoerce wordToWord32Lit op_name)
- primop_rule OrdOp = oneLit (litCoerce char2IntLit op_name)
- primop_rule ChrOp = oneLit (litCoerce int2CharLit op_name)
- primop_rule Float2IntOp = oneLit (litCoerce float2IntLit op_name)
- primop_rule Int2FloatOp = oneLit (litCoerce int2FloatLit op_name)
- primop_rule Double2IntOp = oneLit (litCoerce double2IntLit op_name)
- primop_rule Int2DoubleOp = oneLit (litCoerce int2DoubleLit op_name)
- primop_rule Addr2IntOp = oneLit (litCoerce addr2IntLit op_name)
- primop_rule Int2AddrOp = oneLit (litCoerce int2AddrLit op_name)
+ primop_rule Word2IntOp = Just (oneLit (litCoerce word2IntLit op_name))
+ primop_rule Int2WordOp = Just (oneLit (litCoerce int2WordLit op_name))
+ primop_rule IntToInt8Op = Just (oneLit (litCoerce intToInt8Lit op_name))
+ primop_rule IntToInt16Op = Just (oneLit (litCoerce intToInt16Lit op_name))
+ primop_rule IntToInt32Op = Just (oneLit (litCoerce intToInt32Lit op_name))
+ primop_rule WordToWord8Op = Just (oneLit (litCoerce wordToWord8Lit op_name))
+ primop_rule WordToWord16Op = Just (oneLit (litCoerce wordToWord16Lit op_name))
+ primop_rule WordToWord32Op = Just (oneLit (litCoerce wordToWord32Lit op_name))
+ primop_rule OrdOp = Just (oneLit (litCoerce char2IntLit op_name))
+ primop_rule ChrOp = Just (oneLit (litCoerce int2CharLit op_name))
+ primop_rule Float2IntOp = Just (oneLit (litCoerce float2IntLit op_name))
+ primop_rule Int2FloatOp = Just (oneLit (litCoerce int2FloatLit op_name))
+ primop_rule Double2IntOp = Just (oneLit (litCoerce double2IntLit op_name))
+ primop_rule Int2DoubleOp = Just (oneLit (litCoerce int2DoubleLit op_name))
+ primop_rule Addr2IntOp = Just (oneLit (litCoerce addr2IntLit op_name))
+ primop_rule Int2AddrOp = Just (oneLit (litCoerce int2AddrLit op_name))
-- SUP: Not sure what the standard says about precision in the following 2 cases
- primop_rule Float2DoubleOp = oneLit (litCoerce float2DoubleLit op_name)
- primop_rule Double2FloatOp = oneLit (litCoerce double2FloatLit op_name)
+ primop_rule Float2DoubleOp = Just (oneLit (litCoerce float2DoubleLit op_name))
+ primop_rule Double2FloatOp = Just (oneLit (litCoerce double2FloatLit op_name))
-- Float
- primop_rule FloatAddOp = twoLits (floatOp2 (+) op_name)
- primop_rule FloatSubOp = twoLits (floatOp2 (-) op_name)
- primop_rule FloatMulOp = twoLits (floatOp2 (*) op_name)
- primop_rule FloatDivOp = twoLits (floatOp2Z (/) op_name)
- primop_rule FloatNegOp = oneLit (negOp op_name)
+ primop_rule FloatAddOp = Just (twoLits (floatOp2 (+) op_name))
+ primop_rule FloatSubOp = Just (twoLits (floatOp2 (-) op_name))
+ primop_rule FloatMulOp = Just (twoLits (floatOp2 (*) op_name))
+ primop_rule FloatDivOp = Just (twoLits (floatOp2Z (/) op_name))
+ primop_rule FloatNegOp = Just (oneLit (negOp op_name))
-- Double
- primop_rule DoubleAddOp = twoLits (doubleOp2 (+) op_name)
- primop_rule DoubleSubOp = twoLits (doubleOp2 (-) op_name)
- primop_rule DoubleMulOp = twoLits (doubleOp2 (*) op_name)
- primop_rule DoubleDivOp = twoLits (doubleOp2Z (/) op_name)
- primop_rule DoubleNegOp = oneLit (negOp op_name)
+ primop_rule DoubleAddOp = Just (twoLits (doubleOp2 (+) op_name))
+ primop_rule DoubleSubOp = Just (twoLits (doubleOp2 (-) op_name))
+ primop_rule DoubleMulOp = Just (twoLits (doubleOp2 (*) op_name))
+ primop_rule DoubleDivOp = Just (twoLits (doubleOp2Z (/) op_name))
+ primop_rule DoubleNegOp = Just (oneLit (negOp op_name))
-- Relational operators
- primop_rule IntEqOp = relop (==) `or_rule` litEq True op_name_case
- primop_rule IntNeOp = relop (/=) `or_rule` litEq False op_name_case
- primop_rule CharEqOp = relop (==) `or_rule` litEq True op_name_case
- primop_rule CharNeOp = relop (/=) `or_rule` litEq False op_name_case
-
- primop_rule IntGtOp = relop (>)
- primop_rule IntGeOp = relop (>=)
- primop_rule IntLeOp = relop (<=)
- primop_rule IntLtOp = relop (<)
-
- primop_rule CharGtOp = relop (>)
- primop_rule CharGeOp = relop (>=)
- primop_rule CharLeOp = relop (<=)
- primop_rule CharLtOp = relop (<)
-
- primop_rule FloatGtOp = relop (>)
- primop_rule FloatGeOp = relop (>=)
- primop_rule FloatLeOp = relop (<=)
- primop_rule FloatLtOp = relop (<)
- primop_rule FloatEqOp = relop (==)
- primop_rule FloatNeOp = relop (/=)
-
- primop_rule DoubleGtOp = relop (>)
- primop_rule DoubleGeOp = relop (>=)
- primop_rule DoubleLeOp = relop (<=)
- primop_rule DoubleLtOp = relop (<)
- primop_rule DoubleEqOp = relop (==)
- primop_rule DoubleNeOp = relop (/=)
-
- primop_rule WordGtOp = relop (>)
- primop_rule WordGeOp = relop (>=)
- primop_rule WordLeOp = relop (<=)
- primop_rule WordLtOp = relop (<)
- primop_rule WordEqOp = relop (==)
- primop_rule WordNeOp = relop (/=)
-
- primop_rule other = \args -> Nothing
+ primop_rule IntEqOp = Just (relop (==) `or_rule` litEq True op_name_case)
+ primop_rule IntNeOp = Just (relop (/=) `or_rule` litEq False op_name_case)
+ primop_rule CharEqOp = Just (relop (==) `or_rule` litEq True op_name_case)
+ primop_rule CharNeOp = Just (relop (/=) `or_rule` litEq False op_name_case)
+
+ primop_rule IntGtOp = Just (relop (>))
+ primop_rule IntGeOp = Just (relop (>=))
+ primop_rule IntLeOp = Just (relop (<=))
+ primop_rule IntLtOp = Just (relop (<))
+
+ primop_rule CharGtOp = Just (relop (>))
+ primop_rule CharGeOp = Just (relop (>=))
+ primop_rule CharLeOp = Just (relop (<=))
+ primop_rule CharLtOp = Just (relop (<))
+
+ primop_rule FloatGtOp = Just (relop (>))
+ primop_rule FloatGeOp = Just (relop (>=))
+ primop_rule FloatLeOp = Just (relop (<=))
+ primop_rule FloatLtOp = Just (relop (<))
+ primop_rule FloatEqOp = Just (relop (==))
+ primop_rule FloatNeOp = Just (relop (/=))
+
+ primop_rule DoubleGtOp = Just (relop (>))
+ primop_rule DoubleGeOp = Just (relop (>=))
+ primop_rule DoubleLeOp = Just (relop (<=))
+ primop_rule DoubleLtOp = Just (relop (<))
+ primop_rule DoubleEqOp = Just (relop (==))
+ primop_rule DoubleNeOp = Just (relop (/=))
+
+ primop_rule WordGtOp = Just (relop (>))
+ primop_rule WordGeOp = Just (relop (>=))
+ primop_rule WordLeOp = Just (relop (<=))
+ primop_rule WordLtOp = Just (relop (<))
+ primop_rule WordEqOp = Just (relop (==))
+ primop_rule WordNeOp = Just (relop (/=))
+
+ primop_rule other = Nothing
relop cmp = twoLits (cmpOp (\ord -> ord `cmp` EQ) op_name)
do_lit_eq is_eq name lit expr
= Just (name, Case expr (mkWildId (literalType lit))
- [(LitAlt lit, [], val_if_eq),
- (DEFAULT, [], val_if_neq)])
+ [(DEFAULT, [], val_if_neq),
+ (LitAlt lit, [], val_if_eq)])
where
val_if_eq | is_eq = trueVal
| otherwise = falseVal
twoLits :: (Literal -> Literal -> Maybe (RuleName, CoreExpr)) -> RuleFun
twoLits rule [Lit l1, Lit l2] = rule (convFloating l1) (convFloating l2)
-twoLits rule other = Nothing
+twoLits rule _ = Nothing
oneLit :: (Literal -> Maybe (RuleName, CoreExpr)) -> RuleFun
oneLit rule [Lit l1] = rule (convFloating l1)
-oneLit rule other = Nothing
+oneLit rule _ = Nothing
-- When excess precision is not requested, cut down the precision of the
-- Rational value to that of Float/Double. We confuse host architecture
]
| unpk `hasKey` unpackCStringFoldrIdKey &&
c1 `cheapEqExpr` c2
- = ASSERT( ty1 == ty2 )
+ = ASSERT( ty1 `eqType` ty2 )
Just (SLIT("AppendLitString"),
Var unpk `App` Type ty1
`App` Lit (MachStr (s1 _APPEND_ s2))