module GHC.StgToCmm.Prof (
initCostCentres, ccType, ccsType,
mkCCostCentre, mkCCostCentreStack,
initInfoTableProv,
dynProfHdr, profDynAlloc, profAlloc, staticProfHdr, initUpdFrameProf,
enterCostCentreThunk, enterCostCentreFun,
costCentreFrom,
storeCurCCS,
emitSetCCC,
saveCurrentCostCentre, restoreCurrentCostCentre,
ldvEnter, ldvEnterClosure, ldvRecordCreate
) where
import GHC.Prelude
import GHC.Platform
import GHC.Platform.Profile
import GHC.StgToCmm.Closure
import GHC.StgToCmm.Config
import GHC.StgToCmm.InfoTableProv
import GHC.StgToCmm.Utils
import GHC.StgToCmm.Monad
import GHC.StgToCmm.Lit
import GHC.Runtime.Heap.Layout
import GHC.Cmm.Graph
import GHC.Cmm
import GHC.Cmm.Utils
import GHC.Cmm.CLabel
import GHC.Types.CostCentre
import GHC.Types.IPE
import GHC.Types.ForeignStubs
import GHC.Data.FastString
import GHC.Unit.Module as Module
import GHC.Utils.Outputable
import GHC.Utils.Panic
import GHC.Driver.CodeOutput ( ipInitCode )
import GHC.Utils.Encoding
import Control.Monad
import Data.Char (ord)
import GHC.Utils.Monad (whenM)
ccsType :: Platform -> CmmType
ccsType :: Platform -> CmmType
ccsType = Platform -> CmmType
bWord
ccType :: Platform -> CmmType
ccType :: Platform -> CmmType
ccType = Platform -> CmmType
bWord
storeCurCCS :: CmmExpr -> CmmAGraph
storeCurCCS :: CmmExpr -> CmmAGraph
storeCurCCS = CmmReg -> CmmExpr -> CmmAGraph
mkAssign CmmReg
cccsReg
mkCCostCentre :: CostCentre -> CmmLit
mkCCostCentre :: CostCentre -> CmmLit
mkCCostCentre CostCentre
cc = CLabel -> CmmLit
CmmLabel (CostCentre -> CLabel
mkCCLabel CostCentre
cc)
mkCCostCentreStack :: CostCentreStack -> CmmLit
mkCCostCentreStack :: CostCentreStack -> CmmLit
mkCCostCentreStack CostCentreStack
ccs = CLabel -> CmmLit
CmmLabel (CostCentreStack -> CLabel
mkCCSLabel CostCentreStack
ccs)
costCentreFrom :: Platform
-> CmmExpr
-> CmmExpr
costCentreFrom :: Platform -> CmmExpr -> CmmExpr
costCentreFrom Platform
platform CmmExpr
cl = CmmExpr -> CmmType -> AlignmentSpec -> CmmExpr
CmmLoad (Platform -> CmmExpr -> Int -> CmmExpr
cmmOffsetB Platform
platform CmmExpr
cl (PlatformConstants -> Int
pc_OFFSET_StgHeader_ccs (Platform -> PlatformConstants
platformConstants Platform
platform))) (Platform -> CmmType
ccsType Platform
platform) AlignmentSpec
NaturallyAligned
staticProfHdr :: Profile -> CostCentreStack -> [CmmLit]
staticProfHdr :: Profile -> CostCentreStack -> [CmmLit]
staticProfHdr Profile
profile CostCentreStack
ccs
| Profile -> Bool
profileIsProfiling Profile
profile = [CostCentreStack -> CmmLit
mkCCostCentreStack CostCentreStack
ccs, Platform -> CmmLit
staticLdvInit Platform
platform]
| Bool
otherwise = []
where platform :: Platform
platform = Profile -> Platform
profilePlatform Profile
profile
dynProfHdr :: Profile -> CmmExpr -> [CmmExpr]
dynProfHdr :: Profile -> CmmExpr -> [CmmExpr]
dynProfHdr Profile
profile CmmExpr
ccs
| Profile -> Bool
profileIsProfiling Profile
profile = [CmmExpr
ccs, Platform -> CmmExpr
dynLdvInit (Profile -> Platform
profilePlatform Profile
profile)]
| Bool
otherwise = []
initUpdFrameProf :: CmmExpr -> FCode ()
initUpdFrameProf :: CmmExpr -> FCode ()
initUpdFrameProf CmmExpr
frame
= FCode () -> FCode ()
ifProfiling forall a b. (a -> b) -> a -> b
$
do Platform
platform <- FCode Platform
getPlatform
CmmExpr -> CmmExpr -> FCode ()
emitStore (Platform -> CmmExpr -> Int -> CmmExpr
cmmOffset Platform
platform CmmExpr
frame (PlatformConstants -> Int
pc_OFFSET_StgHeader_ccs (Platform -> PlatformConstants
platformConstants Platform
platform))) CmmExpr
cccsExpr
saveCurrentCostCentre :: FCode (Maybe LocalReg)
saveCurrentCostCentre :: FCode (Maybe LocalReg)
saveCurrentCostCentre
= do Bool
sccProfilingEnabled <- StgToCmmConfig -> Bool
stgToCmmSCCProfiling forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> FCode StgToCmmConfig
getStgToCmmConfig
Platform
platform <- FCode Platform
getPlatform
if Bool -> Bool
not Bool
sccProfilingEnabled
then forall (m :: * -> *) a. Monad m => a -> m a
return forall a. Maybe a
Nothing
else do LocalReg
local_cc <- forall (m :: * -> *). MonadUnique m => CmmType -> m LocalReg
newTemp (Platform -> CmmType
ccType Platform
platform)
CmmReg -> CmmExpr -> FCode ()
emitAssign (LocalReg -> CmmReg
CmmLocal LocalReg
local_cc) CmmExpr
cccsExpr
forall (m :: * -> *) a. Monad m => a -> m a
return (forall a. a -> Maybe a
Just LocalReg
local_cc)
restoreCurrentCostCentre :: Maybe LocalReg -> FCode ()
restoreCurrentCostCentre :: Maybe LocalReg -> FCode ()
restoreCurrentCostCentre Maybe LocalReg
Nothing
= forall (m :: * -> *) a. Monad m => a -> m a
return ()
restoreCurrentCostCentre (Just LocalReg
local_cc)
= CmmAGraph -> FCode ()
emit (CmmExpr -> CmmAGraph
storeCurCCS (CmmReg -> CmmExpr
CmmReg (LocalReg -> CmmReg
CmmLocal LocalReg
local_cc)))
profDynAlloc :: SMRep -> CmmExpr -> FCode ()
profDynAlloc :: SMRep -> CmmExpr -> FCode ()
profDynAlloc SMRep
rep CmmExpr
ccs
= FCode () -> FCode ()
ifProfiling forall a b. (a -> b) -> a -> b
$
do Profile
profile <- FCode Profile
getProfile
let platform :: Platform
platform = Profile -> Platform
profilePlatform Profile
profile
CmmExpr -> CmmExpr -> FCode ()
profAlloc (Platform -> Int -> CmmExpr
mkIntExpr Platform
platform (Profile -> SMRep -> Int
heapClosureSizeW Profile
profile SMRep
rep)) CmmExpr
ccs
profAlloc :: CmmExpr -> CmmExpr -> FCode ()
profAlloc :: CmmExpr -> CmmExpr -> FCode ()
profAlloc CmmExpr
words CmmExpr
ccs
= FCode () -> FCode ()
ifProfiling forall a b. (a -> b) -> a -> b
$
do Profile
profile <- FCode Profile
getProfile
let platform :: Platform
platform = Profile -> Platform
profilePlatform Profile
profile
let alloc_rep :: CmmType
alloc_rep = Platform -> CmmType
rEP_CostCentreStack_mem_alloc Platform
platform
CmmAGraph -> FCode ()
emit forall a b. (a -> b) -> a -> b
$ CmmType -> CmmExpr -> CmmExpr -> CmmAGraph
addToMemE CmmType
alloc_rep
(Platform -> CmmExpr -> Int -> CmmExpr
cmmOffsetB Platform
platform CmmExpr
ccs (PlatformConstants -> Int
pc_OFFSET_CostCentreStack_mem_alloc (Platform -> PlatformConstants
platformConstants Platform
platform)))
(MachOp -> [CmmExpr] -> CmmExpr
CmmMachOp (Width -> Width -> MachOp
MO_UU_Conv (Platform -> Width
wordWidth Platform
platform) (CmmType -> Width
typeWidth CmmType
alloc_rep))
[MachOp -> [CmmExpr] -> CmmExpr
CmmMachOp (Platform -> MachOp
mo_wordSub Platform
platform) [ CmmExpr
words, Platform -> Int -> CmmExpr
mkIntExpr Platform
platform (Profile -> Int
profHdrSize Profile
profile)]]
)
enterCostCentreThunk :: CmmExpr -> FCode ()
enterCostCentreThunk :: CmmExpr -> FCode ()
enterCostCentreThunk CmmExpr
closure =
FCode () -> FCode ()
ifProfiling forall a b. (a -> b) -> a -> b
$ do
Platform
platform <- FCode Platform
getPlatform
CmmAGraph -> FCode ()
emit forall a b. (a -> b) -> a -> b
$ CmmExpr -> CmmAGraph
storeCurCCS (Platform -> CmmExpr -> CmmExpr
costCentreFrom Platform
platform CmmExpr
closure)
enterCostCentreFun :: CostCentreStack -> CmmExpr -> FCode ()
enterCostCentreFun :: CostCentreStack -> CmmExpr -> FCode ()
enterCostCentreFun CostCentreStack
ccs CmmExpr
closure = FCode () -> FCode ()
ifProfiling forall a b. (a -> b) -> a -> b
$
forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
when (CostCentreStack -> Bool
isCurrentCCS CostCentreStack
ccs) forall a b. (a -> b) -> a -> b
$
do Platform
platform <- FCode Platform
getPlatform
UnitId
-> FastString -> [(CmmExpr, ForeignHint)] -> Bool -> FCode ()
emitRtsCall
UnitId
rtsUnitId
(String -> FastString
fsLit String
"enterFunCCS")
[(CmmExpr
baseExpr, ForeignHint
AddrHint), (Platform -> CmmExpr -> CmmExpr
costCentreFrom Platform
platform CmmExpr
closure, ForeignHint
AddrHint)]
Bool
False
ifProfiling :: FCode () -> FCode ()
ifProfiling :: FCode () -> FCode ()
ifProfiling = forall (m :: * -> *). Monad m => m Bool -> m () -> m ()
whenM (StgToCmmConfig -> Bool
stgToCmmSCCProfiling forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> FCode StgToCmmConfig
getStgToCmmConfig)
initCostCentres :: CollectedCCs -> FCode ()
initCostCentres :: CollectedCCs -> FCode ()
initCostCentres ([CostCentre]
local_CCs, [CostCentreStack]
singleton_CCSs)
= FCode () -> FCode ()
ifProfiling forall a b. (a -> b) -> a -> b
$ do
forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
(a -> m b) -> t a -> m ()
mapM_ CostCentre -> FCode ()
emitCostCentreDecl [CostCentre]
local_CCs
forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
(a -> m b) -> t a -> m ()
mapM_ CostCentreStack -> FCode ()
emitCostCentreStackDecl [CostCentreStack]
singleton_CCSs
emitCostCentreDecl :: CostCentre -> FCode ()
emitCostCentreDecl :: CostCentre -> FCode ()
emitCostCentreDecl CostCentre
cc = do
{ SDocContext
ctx <- StgToCmmConfig -> SDocContext
stgToCmmContext forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> FCode StgToCmmConfig
getStgToCmmConfig
; Platform
platform <- FCode Platform
getPlatform
; let is_caf :: CmmLit
is_caf | CostCentre -> Bool
isCafCC CostCentre
cc = Platform -> Int -> CmmLit
mkIntCLit Platform
platform (Char -> Int
ord Char
'c')
| Bool
otherwise = Platform -> CmmLit
zero Platform
platform
; CmmLit
label <- ByteString -> FCode CmmLit
newByteStringCLit (FastString -> ByteString
bytesFS forall a b. (a -> b) -> a -> b
$ CostCentre -> FastString
costCentreUserNameFS CostCentre
cc)
; CmmLit
modl <- ByteString -> FCode CmmLit
newByteStringCLit (FastString -> ByteString
bytesFS forall a b. (a -> b) -> a -> b
$ ModuleName -> FastString
moduleNameFS
forall a b. (a -> b) -> a -> b
$ forall unit. GenModule unit -> ModuleName
moduleName
forall a b. (a -> b) -> a -> b
$ CostCentre -> Module
cc_mod CostCentre
cc)
; CmmLit
loc <- ByteString -> FCode CmmLit
newByteStringCLit forall a b. (a -> b) -> a -> b
$ String -> ByteString
utf8EncodeByteString forall a b. (a -> b) -> a -> b
$
SDocContext -> SDoc -> String
renderWithContext SDocContext
ctx (forall a. Outputable a => a -> SDoc
ppr forall a b. (a -> b) -> a -> b
$! CostCentre -> SrcSpan
costCentreSrcSpan CostCentre
cc)
; let
lits :: [CmmLit]
lits = [ Platform -> CmmLit
zero Platform
platform,
CmmLit
label,
CmmLit
modl,
CmmLit
loc,
CmmLit
zero64,
Platform -> CmmLit
zero Platform
platform,
CmmLit
is_caf,
Platform -> CmmLit
zero Platform
platform
]
; CLabel -> [CmmLit] -> FCode ()
emitDataLits (CostCentre -> CLabel
mkCCLabel CostCentre
cc) [CmmLit]
lits
}
emitCostCentreStackDecl :: CostCentreStack -> FCode ()
emitCostCentreStackDecl :: CostCentreStack -> FCode ()
emitCostCentreStackDecl CostCentreStack
ccs
= case CostCentreStack -> Maybe CostCentre
maybeSingletonCCS CostCentreStack
ccs of
Just CostCentre
cc ->
do Platform
platform <- FCode Platform
getPlatform
let mk_lits :: CostCentre -> [CmmLit]
mk_lits CostCentre
cc = Platform -> CmmLit
zero Platform
platform forall a. a -> [a] -> [a]
:
CostCentre -> CmmLit
mkCCostCentre CostCentre
cc forall a. a -> [a] -> [a]
:
forall a. Int -> a -> [a]
replicate (Platform -> Int
sizeof_ccs_words Platform
platform forall a. Num a => a -> a -> a
- Int
2) (Platform -> CmmLit
zero Platform
platform)
CLabel -> [CmmLit] -> FCode ()
emitDataLits (CostCentreStack -> CLabel
mkCCSLabel CostCentreStack
ccs) (CostCentre -> [CmmLit]
mk_lits CostCentre
cc)
Maybe CostCentre
Nothing -> forall a. HasCallStack => String -> SDoc -> a
pprPanic String
"emitCostCentreStackDecl" (forall a. Outputable a => a -> SDoc
ppr CostCentreStack
ccs)
zero :: Platform -> CmmLit
zero :: Platform -> CmmLit
zero Platform
platform = Platform -> Int -> CmmLit
mkIntCLit Platform
platform Int
0
zero64 :: CmmLit
zero64 :: CmmLit
zero64 = Integer -> Width -> CmmLit
CmmInt Integer
0 Width
W64
sizeof_ccs_words :: Platform -> Int
sizeof_ccs_words :: Platform -> Int
sizeof_ccs_words Platform
platform
| Int
ms forall a. Eq a => a -> a -> Bool
== Int
0 = Int
ws
| Bool
otherwise = Int
ws forall a. Num a => a -> a -> a
+ Int
1
where
(Int
ws,Int
ms) = PlatformConstants -> Int
pc_SIZEOF_CostCentreStack (Platform -> PlatformConstants
platformConstants Platform
platform) forall a. Integral a => a -> a -> (a, a)
`divMod` Platform -> Int
platformWordSizeInBytes Platform
platform
initInfoTableProv :: [CmmInfoTable] -> InfoTableProvMap -> FCode CStub
initInfoTableProv :: [CmmInfoTable] -> InfoTableProvMap -> FCode CStub
initInfoTableProv [CmmInfoTable]
infos InfoTableProvMap
itmap
= do
StgToCmmConfig
cfg <- FCode StgToCmmConfig
getStgToCmmConfig
let ents :: [InfoProvEnt]
ents = [CmmInfoTable] -> Module -> InfoTableProvMap -> [InfoProvEnt]
convertInfoProvMap [CmmInfoTable]
infos Module
this_mod InfoTableProvMap
itmap
info_table :: Bool
info_table = StgToCmmConfig -> Bool
stgToCmmInfoTableMap StgToCmmConfig
cfg
platform :: Platform
platform = StgToCmmConfig -> Platform
stgToCmmPlatform StgToCmmConfig
cfg
this_mod :: Module
this_mod = StgToCmmConfig -> Module
stgToCmmThisModule StgToCmmConfig
cfg
case [InfoProvEnt]
ents of
[] -> forall (m :: * -> *) a. Monad m => a -> m a
return forall a. Monoid a => a
mempty
[InfoProvEnt]
_ -> do
Module -> [InfoProvEnt] -> FCode ()
emitIpeBufferListNode Module
this_mod [InfoProvEnt]
ents
forall (m :: * -> *) a. Monad m => a -> m a
return (Bool -> Platform -> Module -> CStub
ipInitCode Bool
info_table Platform
platform Module
this_mod)
emitSetCCC :: CostCentre -> Bool -> Bool -> FCode ()
emitSetCCC :: CostCentre -> Bool -> Bool -> FCode ()
emitSetCCC CostCentre
cc Bool
tick Bool
push = FCode () -> FCode ()
ifProfiling forall a b. (a -> b) -> a -> b
$
do Platform
platform <- FCode Platform
getPlatform
LocalReg
tmp <- forall (m :: * -> *). MonadUnique m => CmmType -> m LocalReg
newTemp (Platform -> CmmType
ccsType Platform
platform)
LocalReg -> CmmExpr -> CostCentre -> FCode ()
pushCostCentre LocalReg
tmp CmmExpr
cccsExpr CostCentre
cc
forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
when Bool
tick forall a b. (a -> b) -> a -> b
$ CmmAGraph -> FCode ()
emit (Platform -> CmmExpr -> CmmAGraph
bumpSccCount Platform
platform (CmmReg -> CmmExpr
CmmReg (LocalReg -> CmmReg
CmmLocal LocalReg
tmp)))
forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
when Bool
push forall a b. (a -> b) -> a -> b
$ CmmAGraph -> FCode ()
emit (CmmExpr -> CmmAGraph
storeCurCCS (CmmReg -> CmmExpr
CmmReg (LocalReg -> CmmReg
CmmLocal LocalReg
tmp)))
pushCostCentre :: LocalReg -> CmmExpr -> CostCentre -> FCode ()
pushCostCentre :: LocalReg -> CmmExpr -> CostCentre -> FCode ()
pushCostCentre LocalReg
result CmmExpr
ccs CostCentre
cc
= LocalReg
-> ForeignHint
-> UnitId
-> FastString
-> [(CmmExpr, ForeignHint)]
-> Bool
-> FCode ()
emitRtsCallWithResult LocalReg
result ForeignHint
AddrHint
UnitId
rtsUnitId
(String -> FastString
fsLit String
"pushCostCentre") [(CmmExpr
ccs,ForeignHint
AddrHint),
(CmmLit -> CmmExpr
CmmLit (CostCentre -> CmmLit
mkCCostCentre CostCentre
cc), ForeignHint
AddrHint)]
Bool
False
bumpSccCount :: Platform -> CmmExpr -> CmmAGraph
bumpSccCount :: Platform -> CmmExpr -> CmmAGraph
bumpSccCount Platform
platform CmmExpr
ccs
= CmmType -> CmmExpr -> Int -> CmmAGraph
addToMem (Platform -> CmmType
rEP_CostCentreStack_scc_count Platform
platform)
(Platform -> CmmExpr -> Int -> CmmExpr
cmmOffsetB Platform
platform CmmExpr
ccs (PlatformConstants -> Int
pc_OFFSET_CostCentreStack_scc_count (Platform -> PlatformConstants
platformConstants Platform
platform))) Int
1
staticLdvInit :: Platform -> CmmLit
staticLdvInit :: Platform -> CmmLit
staticLdvInit = Platform -> CmmLit
zeroCLit
dynLdvInit :: Platform -> CmmExpr
dynLdvInit :: Platform -> CmmExpr
dynLdvInit Platform
platform =
MachOp -> [CmmExpr] -> CmmExpr
CmmMachOp (Platform -> MachOp
mo_wordOr Platform
platform) [
MachOp -> [CmmExpr] -> CmmExpr
CmmMachOp (Platform -> MachOp
mo_wordShl Platform
platform) [Platform -> CmmExpr
loadEra Platform
platform, Platform -> Int -> CmmExpr
mkIntExpr Platform
platform (PlatformConstants -> Int
pc_LDV_SHIFT (Platform -> PlatformConstants
platformConstants Platform
platform))],
CmmLit -> CmmExpr
CmmLit (Platform -> Integer -> CmmLit
mkWordCLit Platform
platform (PlatformConstants -> Integer
pc_ILDV_STATE_CREATE (Platform -> PlatformConstants
platformConstants Platform
platform)))
]
ldvRecordCreate :: CmmExpr -> FCode ()
ldvRecordCreate :: CmmExpr -> FCode ()
ldvRecordCreate CmmExpr
closure = do
Platform
platform <- FCode Platform
getPlatform
CmmAGraph -> FCode ()
emit forall a b. (a -> b) -> a -> b
$ CmmExpr -> CmmExpr -> CmmAGraph
mkStore (Platform -> CmmExpr -> CmmExpr
ldvWord Platform
platform CmmExpr
closure) (Platform -> CmmExpr
dynLdvInit Platform
platform)
ldvEnterClosure :: ClosureInfo -> CmmReg -> FCode ()
ldvEnterClosure :: ClosureInfo -> CmmReg -> FCode ()
ldvEnterClosure ClosureInfo
closure_info CmmReg
node_reg = do
Platform
platform <- FCode Platform
getPlatform
let tag :: Int
tag = Platform -> ClosureInfo -> Int
funTag Platform
platform ClosureInfo
closure_info
CmmExpr -> FCode ()
ldvEnter (Platform -> CmmExpr -> Int -> CmmExpr
cmmOffsetB Platform
platform (CmmReg -> CmmExpr
CmmReg CmmReg
node_reg) (-Int
tag))
ldvEnter :: CmmExpr -> FCode ()
ldvEnter :: CmmExpr -> FCode ()
ldvEnter CmmExpr
cl_ptr = do
Platform
platform <- FCode Platform
getPlatform
let constants :: PlatformConstants
constants = Platform -> PlatformConstants
platformConstants Platform
platform
ldv_wd :: CmmExpr
ldv_wd = Platform -> CmmExpr -> CmmExpr
ldvWord Platform
platform CmmExpr
cl_ptr
new_ldv_wd :: CmmExpr
new_ldv_wd = Platform -> CmmExpr -> CmmExpr -> CmmExpr
cmmOrWord Platform
platform
(Platform -> CmmExpr -> CmmExpr -> CmmExpr
cmmAndWord Platform
platform (Platform -> CmmExpr -> CmmExpr
cmmLoadBWord Platform
platform CmmExpr
ldv_wd)
(CmmLit -> CmmExpr
CmmLit (Platform -> Integer -> CmmLit
mkWordCLit Platform
platform (PlatformConstants -> Integer
pc_ILDV_CREATE_MASK PlatformConstants
constants))))
(Platform -> CmmExpr -> CmmExpr -> CmmExpr
cmmOrWord Platform
platform (Platform -> CmmExpr
loadEra Platform
platform) (CmmLit -> CmmExpr
CmmLit (Platform -> Integer -> CmmLit
mkWordCLit Platform
platform (PlatformConstants -> Integer
pc_ILDV_STATE_USE PlatformConstants
constants))))
FCode () -> FCode ()
ifProfiling forall a b. (a -> b) -> a -> b
$
CmmAGraph -> FCode ()
emit forall (m :: * -> *) a b. Monad m => (a -> m b) -> m a -> m b
=<< CmmExpr -> CmmAGraph -> CmmAGraph -> FCode CmmAGraph
mkCmmIfThenElse (MachOp -> [CmmExpr] -> CmmExpr
CmmMachOp (Platform -> MachOp
mo_wordUGt Platform
platform) [Platform -> CmmExpr
loadEra Platform
platform, CmmLit -> CmmExpr
CmmLit (Platform -> CmmLit
zeroCLit Platform
platform)])
(CmmExpr -> CmmExpr -> CmmAGraph
mkStore CmmExpr
ldv_wd CmmExpr
new_ldv_wd)
CmmAGraph
mkNop
loadEra :: Platform -> CmmExpr
loadEra :: Platform -> CmmExpr
loadEra Platform
platform = MachOp -> [CmmExpr] -> CmmExpr
CmmMachOp (Width -> Width -> MachOp
MO_UU_Conv (Platform -> Width
cIntWidth Platform
platform) (Platform -> Width
wordWidth Platform
platform))
[CmmExpr -> CmmType -> AlignmentSpec -> CmmExpr
CmmLoad (CLabel -> CmmExpr
mkLblExpr (FastString -> CLabel
mkRtsCmmDataLabel (String -> FastString
fsLit String
"era")))
(Platform -> CmmType
cInt Platform
platform)
AlignmentSpec
NaturallyAligned]
ldvWord :: Platform -> CmmExpr -> CmmExpr
ldvWord :: Platform -> CmmExpr -> CmmExpr
ldvWord Platform
platform CmmExpr
closure_ptr
= Platform -> CmmExpr -> Int -> CmmExpr
cmmOffsetB Platform
platform CmmExpr
closure_ptr (PlatformConstants -> Int
pc_OFFSET_StgHeader_ldvw (Platform -> PlatformConstants
platformConstants Platform
platform))