GHC.Cmm.MachOp

Documentation

data MachOp

Machine-level primops; ones which we can reasonably delegate to the native code generators to handle.

Most operations are parameterised by the Width that they operate on. Some operations have separate signed and unsigned versions, and float and integer versions.

Note that there are variety of places in the native code generator where we assume that the code produced for a MachOp does not introduce new blocks.

Constructors

MO_Add Width

MO_Sub Width

MO_Eq Width

MO_Ne Width

MO_Mul Width

MO_S_MulMayOflo Width

MO_S_Quot Width

MO_S_Rem Width

MO_S_Neg Width

MO_U_MulMayOflo Width

MO_U_Quot Width

MO_U_Rem Width

MO_S_Ge Width

MO_S_Le Width

MO_S_Gt Width

MO_S_Lt Width

MO_U_Ge Width

MO_U_Le Width

MO_U_Gt Width

MO_U_Lt Width

MO_F_Add Width

MO_F_Sub Width

MO_F_Neg Width

MO_F_Mul Width

MO_F_Quot Width

MO_F_Eq Width

MO_F_Ne Width

MO_F_Ge Width

MO_F_Le Width

MO_F_Gt Width

MO_F_Lt Width

MO_And Width

MO_Or Width

MO_Xor Width

MO_Not Width

MO_Shl Width

MO_U_Shr Width

MO_S_Shr Width

MO_SF_Conv Width Width

MO_FS_Conv Width Width

MO_SS_Conv Width Width

MO_UU_Conv Width Width

MO_XX_Conv Width Width

MO_FF_Conv Width Width

MO_V_Insert Length Width

MO_V_Extract Length Width

MO_V_Add Length Width

MO_V_Sub Length Width

MO_V_Mul Length Width

MO_VS_Quot Length Width

MO_VS_Rem Length Width

MO_VS_Neg Length Width

MO_VU_Quot Length Width

MO_VU_Rem Length Width

MO_VF_Insert Length Width

MO_VF_Extract Length Width

MO_VF_Add Length Width

MO_VF_Sub Length Width

MO_VF_Neg Length Width

MO_VF_Mul Length Width

MO_VF_Quot Length Width

MO_AlignmentCheck Int Width

Instances

Show MachOp

Defined in GHC.Cmm.MachOp

Methods

showsPrec :: Int -> MachOp -> ShowS

show :: MachOp -> String

showList :: [MachOp] -> ShowS

Eq MachOp

Defined in GHC.Cmm.MachOp

Methods

(==) :: MachOp -> MachOp -> Bool

(/=) :: MachOp -> MachOp -> Bool

pprMachOp :: MachOp -> SDoc

isCommutableMachOp :: MachOp -> Bool

Returns True if the MachOp has commutable arguments. This is used in the platform-independent Cmm optimisations.

If in doubt, return False. This generates worse code on the native routes, but is otherwise harmless.

isAssociativeMachOp :: MachOp -> Bool

Returns True if the MachOp is associative (i.e. (x+y)+z == x+(y+z)) This is used in the platform-independent Cmm optimisations.

If in doubt, return False. This generates worse code on the native routes, but is otherwise harmless.

isComparisonMachOp :: MachOp -> Bool

Returns True if the MachOp is a comparison.

If in doubt, return False. This generates worse code on the native routes, but is otherwise harmless.

maybeIntComparison :: MachOp -> Maybe Width

Returns Just w if the operation is an integer comparison with width w, or Nothing otherwise.

machOpResultType :: Platform -> MachOp -> [CmmType] -> CmmType

Returns the MachRep of the result of a MachOp.

machOpArgReps :: Platform -> MachOp -> [Width]

This function is used for debugging only: we can check whether an application of a MachOp is "type-correct" by checking that the MachReps of its arguments are the same as the MachOp expects. This is used when linting a CmmExpr.

maybeInvertComparison :: MachOp -> Maybe MachOp

isFloatComparison :: MachOp -> Bool

mo_wordAdd :: Platform -> MachOp

mo_wordSub :: Platform -> MachOp

mo_wordEq :: Platform -> MachOp

mo_wordNe :: Platform -> MachOp

mo_wordMul :: Platform -> MachOp

mo_wordSQuot :: Platform -> MachOp

mo_wordSRem :: Platform -> MachOp

mo_wordSNeg :: Platform -> MachOp

mo_wordUQuot :: Platform -> MachOp

mo_wordURem :: Platform -> MachOp

mo_wordSGe :: Platform -> MachOp

mo_wordSLe :: Platform -> MachOp

mo_wordSGt :: Platform -> MachOp

mo_wordSLt :: Platform -> MachOp

mo_wordUGe :: Platform -> MachOp

mo_wordULe :: Platform -> MachOp

mo_wordUGt :: Platform -> MachOp

mo_wordULt :: Platform -> MachOp

mo_wordAnd :: Platform -> MachOp

mo_wordOr :: Platform -> MachOp

mo_wordXor :: Platform -> MachOp

mo_wordNot :: Platform -> MachOp

mo_wordShl :: Platform -> MachOp

mo_wordSShr :: Platform -> MachOp

mo_wordUShr :: Platform -> MachOp

mo_u_8To32 :: MachOp

mo_s_8To32 :: MachOp

mo_u_16To32 :: MachOp

mo_s_16To32 :: MachOp

mo_u_8ToWord :: Platform -> MachOp

mo_s_8ToWord :: Platform -> MachOp

mo_u_16ToWord :: Platform -> MachOp

mo_s_16ToWord :: Platform -> MachOp

mo_u_32ToWord :: Platform -> MachOp

mo_s_32ToWord :: Platform -> MachOp

mo_32To8 :: MachOp

mo_32To16 :: MachOp

mo_WordTo8 :: Platform -> MachOp

mo_WordTo16 :: Platform -> MachOp

mo_WordTo32 :: Platform -> MachOp

mo_WordTo64 :: Platform -> MachOp

data CallishMachOp

Constructors

MO_F64_Pwr

MO_F64_Sin

MO_F64_Cos

MO_F64_Tan

MO_F64_Sinh

MO_F64_Cosh

MO_F64_Tanh

MO_F64_Asin

MO_F64_Acos

MO_F64_Atan

MO_F64_Asinh

MO_F64_Acosh

MO_F64_Atanh

MO_F64_Log

MO_F64_Log1P

MO_F64_Exp

MO_F64_ExpM1

MO_F64_Fabs

MO_F64_Sqrt

MO_F32_Pwr

MO_F32_Sin

MO_F32_Cos

MO_F32_Tan

MO_F32_Sinh

MO_F32_Cosh

MO_F32_Tanh

MO_F32_Asin

MO_F32_Acos

MO_F32_Atan

MO_F32_Asinh

MO_F32_Acosh

MO_F32_Atanh

MO_F32_Log

MO_F32_Log1P

MO_F32_Exp

MO_F32_ExpM1

MO_F32_Fabs

MO_F32_Sqrt

MO_I64_ToI

MO_I64_FromI

MO_W64_ToW

MO_W64_FromW

MO_x64_Neg

MO_x64_Add

MO_x64_Sub

MO_x64_Mul

MO_I64_Quot

MO_I64_Rem

MO_W64_Quot

MO_W64_Rem

MO_x64_And

MO_x64_Or

MO_x64_Xor

MO_x64_Not

MO_x64_Shl

MO_I64_Shr

MO_W64_Shr

MO_x64_Eq

MO_x64_Ne

MO_I64_Ge

MO_I64_Gt

MO_I64_Le

MO_I64_Lt

MO_W64_Ge

MO_W64_Gt

MO_W64_Le

MO_W64_Lt

MO_UF_Conv Width

MO_S_Mul2 Width

MO_S_QuotRem Width

MO_U_QuotRem Width

MO_U_QuotRem2 Width

MO_Add2 Width

MO_AddWordC Width

MO_SubWordC Width

MO_AddIntC Width

MO_SubIntC Width

MO_U_Mul2 Width

MO_ReadBarrier

MO_WriteBarrier

MO_Touch

MO_Prefetch_Data Int

MO_Memcpy Int

MO_Memset Int

MO_Memmove Int

MO_Memcmp Int

MO_PopCnt Width

MO_Pdep Width

MO_Pext Width

MO_Clz Width

MO_Ctz Width

MO_BSwap Width

MO_BRev Width

MO_AtomicRMW Width AtomicMachOp

MO_AtomicRead Width

MO_AtomicWrite Width

MO_Cmpxchg Width

Atomic compare-and-swap. Arguments are [dest, expected, new]. Sequentially consistent. Possible future refactoring: should this be anMO_AtomicRMW variant?

MO_Xchg Width

Atomic swap. Arguments are [dest, new]

MO_SuspendThread

MO_ResumeThread

Instances

Show CallishMachOp

Defined in GHC.Cmm.MachOp

Methods

showsPrec :: Int -> CallishMachOp -> ShowS

show :: CallishMachOp -> String

showList :: [CallishMachOp] -> ShowS

Eq CallishMachOp

Defined in GHC.Cmm.MachOp

Methods

(==) :: CallishMachOp -> CallishMachOp -> Bool

(/=) :: CallishMachOp -> CallishMachOp -> Bool

callishMachOpHints :: CallishMachOp -> ([ForeignHint], [ForeignHint])

Return (results_hints,args_hints)

pprCallishMachOp :: CallishMachOp -> SDoc

machOpMemcpyishAlign :: CallishMachOp -> Maybe Int

The alignment of a memcpy-ish operation.

data AtomicMachOp

The operation to perform atomically.

Constructors

AMO_Add

AMO_Sub

AMO_And

AMO_Nand

AMO_Or

AMO_Xor

Instances

Show AtomicMachOp

Defined in GHC.Cmm.MachOp

Methods

showsPrec :: Int -> AtomicMachOp -> ShowS

show :: AtomicMachOp -> String

showList :: [AtomicMachOp] -> ShowS

Eq AtomicMachOp

Defined in GHC.Cmm.MachOp

Methods

(==) :: AtomicMachOp -> AtomicMachOp -> Bool

(/=) :: AtomicMachOp -> AtomicMachOp -> Bool