-----------------------------------------------------------------------------
{
+{-# OPTIONS -w #-}
+-- The above warning supression flag is a temporary kludge.
+-- While working on this module you are encouraged to remove it and fix
+-- any warnings in the module. See
+-- http://hackage.haskell.org/trac/ghc/wiki/Commentary/CodingStyle#Warnings
+-- for details
+
module CmmParse ( parseCmmFile ) where
import CgMonad
import Outputable
import Control.Monad
+import Data.Array
import Data.Char ( ord )
import System.Exit
cmmproc :: { ExtCode }
-- TODO: add real SRT/info tables to parsed Cmm
- : info maybe_formals maybe_gc_block maybe_frame '{' body '}'
+ : info maybe_formals_without_kinds maybe_gc_block maybe_frame '{' body '}'
{ do ((entry_ret_label, info, live, formals, gc_block, frame), stmts) <-
getCgStmtsEC' $ loopDecls $ do {
(entry_ret_label, info, live) <- $1;
blks <- code (cgStmtsToBlocks stmts)
code (emitInfoTableAndCode entry_ret_label (CmmInfo gc_block frame info) formals blks) }
- | info maybe_formals ';'
+ | info maybe_formals_without_kinds ';'
{ do (entry_ret_label, info, live) <- $1;
formals <- sequence $2;
code (emitInfoTableAndCode entry_ret_label (CmmInfo Nothing Nothing info) formals []) }
- | NAME maybe_formals maybe_gc_block maybe_frame '{' body '}'
+ | NAME maybe_formals_without_kinds maybe_gc_block maybe_frame '{' body '}'
{ do ((formals, gc_block, frame), stmts) <-
getCgStmtsEC' $ loopDecls $ do {
formals <- sequence $2;
[]) }
-- we leave most of the fields zero here. This is only used
-- to generate the BCO info table in the RTS at the moment.
+
+ -- A variant with a non-zero arity (needed to write Main_main in Cmm)
+ | 'INFO_TABLE_FUN' '(' NAME ',' INT ',' INT ',' INT ',' STRING ',' STRING ',' INT ',' INT ')'
+ -- ptrs, nptrs, closure type, description, type, fun type, arity
+ { do prof <- profilingInfo $11 $13
+ return (mkRtsEntryLabelFS $3,
+ CmmInfoTable prof (fromIntegral $9)
+ (FunInfo (fromIntegral $5, fromIntegral $7) NoC_SRT (fromIntegral $15) (fromIntegral $17)
+ (ArgSpec 0)
+ zeroCLit),
+ []) }
+ -- we leave most of the fields zero here. This is only used
+ -- to generate the BCO info table in the RTS at the moment.
| 'INFO_TABLE_CONSTR' '(' NAME ',' INT ',' INT ',' INT ',' INT ',' STRING ',' STRING ')'
-- ptrs, nptrs, tag, closure type, description, type
(ContInfo [] NoC_SRT),
[]) }
- | 'INFO_TABLE_RET' '(' NAME ',' INT ',' formals0 ')'
+ | 'INFO_TABLE_RET' '(' NAME ',' INT ',' formals_without_kinds0 ')'
-- closure type, live regs
{ do live <- sequence (map (liftM Just) $7)
return (mkRtsRetLabelFS $3,
decl :: { ExtCode }
: type names ';' { mapM_ (newLocal defaultKind $1) $2 }
- | STRING type names ';' {% do k <- parseKind $1;
+ | STRING type names ';' {% do k <- parseGCKind $1;
return $ mapM_ (newLocal k $2) $3 }
| 'import' names ';' { mapM_ newImport $2 }
-- we tweak the syntax to avoid the conflict. The later
-- option is taken here because the other way would require
-- multiple levels of expanding and get unwieldy.
- | maybe_results 'foreign' STRING expr '(' hint_exprs0 ')' safety vols opt_never_returns ';'
+ | maybe_results 'foreign' STRING expr '(' cmm_kind_exprs0 ')' safety vols opt_never_returns ';'
{% foreignCall $3 $1 $4 $6 $9 $8 $10 }
- | maybe_results 'prim' '%' NAME '(' hint_exprs0 ')' safety vols ';'
+ | maybe_results 'prim' '%' NAME '(' cmm_kind_exprs0 ')' safety vols ';'
{% primCall $1 $4 $6 $9 $8 }
-- stmt-level macros, stealing syntax from ordinary C-- function calls.
-- Perhaps we ought to use the %%-form?
: {- empty -} { wordRep }
| '::' type { $2 }
-maybe_actuals :: { [ExtFCode (CmmExpr, MachHint)] }
+maybe_actuals :: { [ExtFCode CmmActual] }
: {- empty -} { [] }
- | '(' hint_exprs0 ')' { $2 }
+ | '(' cmm_kind_exprs0 ')' { $2 }
-hint_exprs0 :: { [ExtFCode (CmmExpr, MachHint)] }
+cmm_kind_exprs0 :: { [ExtFCode CmmActual] }
: {- empty -} { [] }
- | hint_exprs { $1 }
+ | cmm_kind_exprs { $1 }
-hint_exprs :: { [ExtFCode (CmmExpr, MachHint)] }
- : hint_expr { [$1] }
- | hint_expr ',' hint_exprs { $1 : $3 }
+cmm_kind_exprs :: { [ExtFCode CmmActual] }
+ : cmm_kind_expr { [$1] }
+ | cmm_kind_expr ',' cmm_kind_exprs { $1 : $3 }
-hint_expr :: { ExtFCode (CmmExpr, MachHint) }
- : expr { do e <- $1; return (e, inferHint e) }
- | expr STRING {% do h <- parseHint $2;
+cmm_kind_expr :: { ExtFCode CmmActual }
+ : expr { do e <- $1; return (CmmHinted e (inferCmmKind e)) }
+ | expr STRING {% do h <- parseCmmKind $2;
return $ do
- e <- $1; return (e,h) }
+ e <- $1; return (CmmHinted e h) }
exprs0 :: { [ExtFCode CmmExpr] }
: {- empty -} { [] }
: NAME { lookupName $1 }
| GLOBALREG { return (CmmReg (CmmGlobal $1)) }
-maybe_results :: { [ExtFCode (CmmFormal, MachHint)] }
+maybe_results :: { [ExtFCode CmmFormal] }
: {- empty -} { [] }
- | '(' hint_lregs ')' '=' { $2 }
+ | '(' cmm_formals ')' '=' { $2 }
-hint_lregs :: { [ExtFCode (CmmFormal, MachHint)] }
- : hint_lreg { [$1] }
- | hint_lreg ',' { [$1] }
- | hint_lreg ',' hint_lregs { $1 : $3 }
+cmm_formals :: { [ExtFCode CmmFormal] }
+ : cmm_formal { [$1] }
+ | cmm_formal ',' { [$1] }
+ | cmm_formal ',' cmm_formals { $1 : $3 }
-hint_lreg :: { ExtFCode (CmmFormal, MachHint) }
- : local_lreg { do e <- $1; return (e, inferHint (CmmReg (CmmLocal e))) }
- | STRING local_lreg {% do h <- parseHint $1;
+cmm_formal :: { ExtFCode CmmFormal }
+ : local_lreg { do e <- $1; return (CmmHinted e (inferCmmKind (CmmReg (CmmLocal e)))) }
+ | STRING local_lreg {% do h <- parseCmmKind $1;
return $ do
- e <- $2; return (e,h) }
+ e <- $2; return (CmmHinted e h) }
local_lreg :: { ExtFCode LocalReg }
: NAME { do e <- lookupName $1;
other -> pprPanic "CmmParse:" (ftext $1 <> text " not a register") }
| GLOBALREG { return (CmmGlobal $1) }
-maybe_formals :: { [ExtFCode LocalReg] }
+maybe_formals_without_kinds :: { [ExtFCode LocalReg] }
: {- empty -} { [] }
- | '(' formals0 ')' { $2 }
+ | '(' formals_without_kinds0 ')' { $2 }
-formals0 :: { [ExtFCode LocalReg] }
+formals_without_kinds0 :: { [ExtFCode LocalReg] }
: {- empty -} { [] }
- | formals { $1 }
+ | formals_without_kinds { $1 }
-formals :: { [ExtFCode LocalReg] }
- : formal ',' { [$1] }
- | formal { [$1] }
- | formal ',' formals { $1 : $3 }
+formals_without_kinds :: { [ExtFCode LocalReg] }
+ : formal_without_kind ',' { [$1] }
+ | formal_without_kind { [$1] }
+ | formal_without_kind ',' formals_without_kinds { $1 : $3 }
-formal :: { ExtFCode LocalReg }
+formal_without_kind :: { ExtFCode LocalReg }
: type NAME { newLocal defaultKind $1 $2 }
- | STRING type NAME {% do k <- parseKind $1;
+ | STRING type NAME {% do k <- parseGCKind $1;
return $ newLocal k $2 $3 }
maybe_frame :: { ExtFCode (Maybe UpdateFrame) }
parseSafety "unsafe" = return CmmUnsafe
parseSafety str = fail ("unrecognised safety: " ++ str)
-parseHint :: String -> P MachHint
-parseHint "ptr" = return PtrHint
-parseHint "signed" = return SignedHint
-parseHint "float" = return FloatHint
-parseHint str = fail ("unrecognised hint: " ++ str)
+parseCmmKind :: String -> P CmmKind
+parseCmmKind "ptr" = return PtrHint
+parseCmmKind "signed" = return SignedHint
+parseCmmKind "float" = return FloatHint
+parseCmmKind str = fail ("unrecognised hint: " ++ str)
-parseKind :: String -> P Kind
-parseKind "ptr" = return KindPtr
-parseKind str = fail ("unrecognized kin: " ++ str)
+parseGCKind :: String -> P GCKind
+parseGCKind "ptr" = return GCKindPtr
+parseGCKind str = fail ("unrecognized kin: " ++ str)
-defaultKind :: Kind
-defaultKind = KindNonPtr
+defaultKind :: GCKind
+defaultKind = GCKindNonPtr
-- labels are always pointers, so we might as well infer the hint
-inferHint :: CmmExpr -> MachHint
-inferHint (CmmLit (CmmLabel _)) = PtrHint
-inferHint (CmmReg (CmmGlobal g)) | isPtrGlobalReg g = PtrHint
-inferHint _ = NoHint
+inferCmmKind :: CmmExpr -> CmmKind
+inferCmmKind (CmmLit (CmmLabel _)) = PtrHint
+inferCmmKind (CmmReg (CmmGlobal g)) | isPtrGlobalReg g = PtrHint
+inferCmmKind _ = NoHint
isPtrGlobalReg Sp = True
isPtrGlobalReg SpLim = True
addLabel :: FastString -> BlockId -> ExtCode
addLabel name block_id = EC $ \e s -> return ((name, Label block_id):s, ())
-newLocal :: Kind -> MachRep -> FastString -> ExtFCode LocalReg
+newLocal :: GCKind -> MachRep -> FastString -> ExtFCode LocalReg
newLocal kind ty name = do
u <- code newUnique
let reg = LocalReg u ty kind
-- classifies these labels as dynamic, hence the code generator emits the
-- PIC code for them.
newImport :: FastString -> ExtFCode ()
-newImport name =
- addVarDecl name (CmmLit (CmmLabel (mkForeignLabel name Nothing True)))
+newImport name
+ = addVarDecl name (CmmLit (CmmLabel (mkForeignLabel name Nothing True)))
newLabel :: FastString -> ExtFCode BlockId
newLabel name = do
foreignCall
:: String
- -> [ExtFCode (CmmFormal,MachHint)]
+ -> [ExtFCode CmmFormal]
-> ExtFCode CmmExpr
- -> [ExtFCode (CmmExpr,MachHint)]
+ -> [ExtFCode CmmActual]
-> Maybe [GlobalReg]
-> CmmSafety
-> CmmReturnInfo
foreignCall conv_string results_code expr_code args_code vols safety ret
= do convention <- case conv_string of
"C" -> return CCallConv
+ "stdcall" -> return StdCallConv
"C--" -> return CmmCallConv
_ -> fail ("unknown calling convention: " ++ conv_string)
return $ do
case convention of
-- Temporary hack so at least some functions are CmmSafe
CmmCallConv -> code (stmtC (CmmCall (CmmCallee expr convention) results args safety ret))
- _ -> case safety of
+ _ ->
+ let expr' = adjCallTarget convention expr args in
+ case safety of
CmmUnsafe ->
code (emitForeignCall' PlayRisky results
- (CmmCallee expr convention) args vols NoC_SRT ret)
+ (CmmCallee expr' convention) args vols NoC_SRT ret)
CmmSafe srt ->
code (emitForeignCall' (PlaySafe unused) results
- (CmmCallee expr convention) args vols NoC_SRT ret) where
+ (CmmCallee expr' convention) args vols NoC_SRT ret) where
unused = panic "not used by emitForeignCall'"
+adjCallTarget :: CCallConv -> CmmExpr -> [CmmHinted CmmExpr] -> CmmExpr
+#ifdef mingw32_TARGET_OS
+-- On Windows, we have to add the '@N' suffix to the label when making
+-- a call with the stdcall calling convention.
+adjCallTarget StdCallConv (CmmLit (CmmLabel lbl)) args
+ = CmmLit (CmmLabel (addLabelSize lbl (sum (map size args))))
+ where size (CmmHinted e _) = max wORD_SIZE (machRepByteWidth (cmmExprRep e))
+ -- c.f. CgForeignCall.emitForeignCall
+#endif
+adjCallTarget _ expr _
+ = expr
+
primCall
- :: [ExtFCode (CmmFormal,MachHint)]
+ :: [ExtFCode CmmFormal]
-> FastString
- -> [ExtFCode (CmmExpr,MachHint)]
+ -> [ExtFCode CmmActual]
-> Maybe [GlobalReg]
-> CmmSafety
-> P ExtCode
let ms = getMessages pst
printErrorsAndWarnings dflags ms
when (errorsFound dflags ms) $ exitWith (ExitFailure 1)
- dumpIfSet_dyn dflags Opt_D_dump_cmm "Cmm" (pprCmms [cmm])
+ dumpIfSet_dyn dflags Opt_D_dump_cmm "Cmm" (ppr cmm)
return (Just cmm)
where
no_module = panic "parseCmmFile: no module"
projects / ghc-hetmet.git / blobdiff