'jump' { L _ (CmmT_jump) }
'foreign' { L _ (CmmT_foreign) }
'prim' { L _ (CmmT_prim) }
+ 'return' { L _ (CmmT_return) }
'import' { L _ (CmmT_import) }
'switch' { L _ (CmmT_switch) }
'case' { L _ (CmmT_case) }
| ',' expr lits { $2 : $3 }
cmmproc :: { ExtCode }
- : info '{' body '}'
- { do (info_lbl, info1, info2) <- $1;
- stmts <- getCgStmtsEC (loopDecls $3)
- blks <- code (cgStmtsToBlocks stmts)
- code (emitInfoTableAndCode info_lbl info1 info2 [] blks) }
-
- | info ';'
- { do (info_lbl, info1, info2) <- $1;
- code (emitInfoTableAndCode info_lbl info1 info2 [] []) }
-
- | NAME '{' body '}'
- { do stmts <- getCgStmtsEC (loopDecls $3);
+-- TODO: add real SRT/info tables to parsed Cmm
+ : info maybe_formals '{' body '}'
+ { do (info_lbl, info) <- $1;
+ formals <- sequence $2;
+ stmts <- getCgStmtsEC (loopDecls $4)
blks <- code (cgStmtsToBlocks stmts)
- code (emitProc [] (mkRtsCodeLabelFS $1) [] blks) }
+ code (emitInfoTableAndCode info_lbl info formals blks) }
-info :: { ExtFCode (CLabel, [CmmLit],[CmmLit]) }
+ | info maybe_formals ';'
+ { do (info_lbl, info) <- $1;
+ formals <- sequence $2;
+ code (emitInfoTableAndCode info_lbl info formals []) }
+
+ | NAME maybe_formals '{' body '}'
+ { do formals <- sequence $2;
+ stmts <- getCgStmtsEC (loopDecls $4);
+ blks <- code (cgStmtsToBlocks stmts);
+ code (emitProc (CmmNonInfo Nothing) (mkRtsCodeLabelFS $1) formals blks) }
+
+info :: { ExtFCode (CLabel, CmmInfo) }
: 'INFO_TABLE' '(' NAME ',' INT ',' INT ',' INT ',' STRING ',' STRING ')'
-- ptrs, nptrs, closure type, description, type
- { stdInfo $3 $5 $7 0 $9 $11 $13 }
+ { do prof <- profilingInfo $11 $13
+ return (mkRtsInfoLabelFS $3,
+ CmmInfo prof Nothing (fromIntegral $9)
+ (ThunkInfo (fromIntegral $5, fromIntegral $7) NoC_SRT)) }
| 'INFO_TABLE_FUN' '(' NAME ',' INT ',' INT ',' INT ',' STRING ',' STRING ',' INT ')'
-- ptrs, nptrs, closure type, description, type, fun type
- { funInfo $3 $5 $7 $9 $11 $13 $15 }
+ { do prof <- profilingInfo $11 $13
+ return (mkRtsInfoLabelFS $3,
+ CmmInfo prof Nothing (fromIntegral $9)
+ (FunInfo (fromIntegral $5, fromIntegral $7) NoC_SRT (fromIntegral $15) 0
+ (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
- { conInfo $3 $5 $7 $9 $11 $13 $15 }
+ { do prof <- profilingInfo $13 $15
+ -- If profiling is on, this string gets duplicated,
+ -- but that's the way the old code did it we can fix it some other time.
+ desc_lit <- code $ mkStringCLit $13
+ return (mkRtsInfoLabelFS $3,
+ CmmInfo prof Nothing (fromIntegral $11)
+ (ConstrInfo (fromIntegral $5, fromIntegral $7) (fromIntegral $9) desc_lit)) }
| 'INFO_TABLE_SELECTOR' '(' NAME ',' INT ',' INT ',' STRING ',' STRING ')'
-- selector, closure type, description, type
- { basicInfo $3 (mkIntCLit (fromIntegral $5)) 0 $7 $9 $11 }
-
- | 'INFO_TABLE_RET' '(' NAME ',' INT ',' INT ',' INT ')'
- { retInfo $3 $5 $7 $9 }
+ { do prof <- profilingInfo $9 $11
+ return (mkRtsInfoLabelFS $3,
+ CmmInfo prof Nothing (fromIntegral $7)
+ (ThunkSelectorInfo (fromIntegral $5) NoC_SRT)) }
+
+ | 'INFO_TABLE_RET' '(' NAME ',' INT ')'
+ -- closure type (no live regs)
+ { return (mkRtsInfoLabelFS $3,
+ CmmInfo (ProfilingInfo zeroCLit zeroCLit) Nothing (fromIntegral $5)
+ (ContInfo [] NoC_SRT)) }
+
+ | 'INFO_TABLE_RET' '(' NAME ',' INT ',' formals0 ')'
+ -- closure type, live regs
+ { do live <- sequence (map (liftM Just) $7)
+ return (mkRtsInfoLabelFS $3,
+ CmmInfo (ProfilingInfo zeroCLit zeroCLit) Nothing (fromIntegral $5)
+ (ContInfo live NoC_SRT)) }
body :: { ExtCode }
: {- empty -} { return () }
| stmt body { do $1; $2 }
decl :: { ExtCode }
- : type names ';' { mapM_ (newLocal $1) $2 }
+ : type names ';' { mapM_ (newLocal defaultKind $1) $2 }
+ | STRING type names ';' {% do k <- parseKind $1;
+ return $ mapM_ (newLocal k $2) $3 }
+
| 'import' names ';' { return () } -- ignore imports
| 'export' names ';' { return () } -- ignore exports
| NAME ':'
{ do l <- newLabel $1; code (labelC l) }
- | lreg '=' expr ';'
+ | lreg '=' expr ';'
{ do reg <- $1; e <- $3; stmtEC (CmmAssign reg e) }
| type '[' expr ']' '=' expr ';'
{ doStore $1 $3 $6 }
- | 'foreign' STRING expr '(' hint_exprs0 ')' vols ';'
- {% foreignCall $2 [] $3 $5 $7 }
- | lreg '=' 'foreign' STRING expr '(' hint_exprs0 ')' vols ';'
- {% let result = do r <- $1; return (r,NoHint) in
- foreignCall $4 [result] $5 $7 $9 }
- | 'prim' '%' NAME '(' hint_exprs0 ')' vols ';'
- {% primCall [] $3 $5 $7 }
- | lreg '=' 'prim' '%' NAME '(' hint_exprs0 ')' vols ';'
- {% let result = do r <- $1; return (r,NoHint) in
- primCall [result] $5 $7 $9 }
- | STRING lreg '=' 'foreign' STRING expr '(' hint_exprs0 ')' vols ';'
- {% do h <- parseHint $1;
- let result = do r <- $2; return (r,h) in
- foreignCall $5 [result] $6 $8 $10 }
+
+ -- Gah! We really want to say "maybe_results" but that causes
+ -- a shift/reduce conflict with assignment. We either
+ -- we expand out the no-result and single result cases or
+ -- 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 ')' vols ';'
+ {% foreignCall $3 $1 $4 $6 $8 NoC_SRT }
+ | maybe_results 'prim' '%' NAME '(' hint_exprs0 ')' vols ';'
+ {% primCall $1 $4 $6 $8 NoC_SRT }
-- stmt-level macros, stealing syntax from ordinary C-- function calls.
-- Perhaps we ought to use the %%-form?
| NAME '(' exprs0 ')' ';'
{ doSwitch $2 $3 $5 $6 }
| 'goto' NAME ';'
{ do l <- lookupLabel $2; stmtEC (CmmBranch l) }
- | 'jump' expr {-maybe_actuals-} ';'
- { do e <- $2; stmtEC (CmmJump e []) }
+ | 'jump' expr maybe_actuals ';'
+ { do e1 <- $2; e2 <- sequence $3; stmtEC (CmmJump e1 e2) }
+ | 'return' maybe_actuals ';'
+ { do e <- sequence $2; stmtEC (CmmReturn e) }
| 'if' bool_expr '{' body '}' else
{ ifThenElse $2 $4 $6 }
: {- empty -} { wordRep }
| '::' type { $2 }
+maybe_actuals :: { [ExtFCode (CmmExpr, MachHint)] }
+ : {- empty -} { [] }
+ | '(' hint_exprs0 ')' { $2 }
+
hint_exprs0 :: { [ExtFCode (CmmExpr, MachHint)] }
: {- empty -} { [] }
| hint_exprs { $1 }
: NAME { lookupName $1 }
| GLOBALREG { return (CmmReg (CmmGlobal $1)) }
+maybe_results :: { [ExtFCode (CmmFormal, MachHint)] }
+ : {- empty -} { [] }
+ | '(' hint_lregs ')' '=' { $2 }
+
+hint_lregs :: { [ExtFCode (CmmFormal, MachHint)] }
+ : hint_lreg { [$1] }
+ | hint_lreg ',' { [$1] }
+ | hint_lreg ',' hint_lregs { $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;
+ return $ do
+ e <- $2; return (e,h) }
+
+local_lreg :: { ExtFCode LocalReg }
+ : NAME { do e <- lookupName $1;
+ return $
+ case e of
+ CmmReg (CmmLocal r) -> r
+ other -> pprPanic "CmmParse:" (ftext $1 <> text " not a local register") }
+
lreg :: { ExtFCode CmmReg }
: NAME { do e <- lookupName $1;
return $
other -> pprPanic "CmmParse:" (ftext $1 <> text " not a register") }
| GLOBALREG { return (CmmGlobal $1) }
+maybe_formals :: { [ExtFCode LocalReg] }
+ : {- empty -} { [] }
+ | '(' formals0 ')' { $2 }
+
+formals0 :: { [ExtFCode LocalReg] }
+ : {- empty -} { [] }
+ | formals { $1 }
+
+formals :: { [ExtFCode LocalReg] }
+ : formal ',' { [$1] }
+ | formal { [$1] }
+ | formal ',' formals { $1 : $3 }
+
+formal :: { ExtFCode LocalReg }
+ : type NAME { newLocal defaultKind $1 $2 }
+ | STRING type NAME {% do k <- parseKind $1;
+ return $ newLocal k $2 $3 }
+
type :: { MachRep }
: 'bits8' { I8 }
| typenot8 { $1 }
parseHint "float" = return FloatHint
parseHint str = fail ("unrecognised hint: " ++ str)
+parseKind :: String -> P Kind
+parseKind "ptr" = return KindPtr
+parseKind str = fail ("unrecognized kin: " ++ str)
+
+defaultKind :: Kind
+defaultKind = KindNonPtr
+
-- labels are always pointers, so we might as well infer the hint
inferHint :: CmmExpr -> MachHint
inferHint (CmmLit (CmmLabel _)) = PtrHint
addLabel :: FastString -> BlockId -> ExtCode
addLabel name block_id = EC $ \e s -> return ((name, Label block_id):s, ())
-newLocal :: MachRep -> FastString -> ExtCode
-newLocal ty name = do
+newLocal :: Kind -> MachRep -> FastString -> ExtFCode LocalReg
+newLocal kind ty name = do
u <- code newUnique
- addVarDecl name (CmmReg (CmmLocal (LocalReg u ty)))
+ let reg = LocalReg u ty kind
+ addVarDecl name (CmmReg (CmmLocal reg))
+ return reg
newLabel :: FastString -> ExtFCode BlockId
newLabel name = do
stmts <- getCgStmtsEC ec
code (forkCgStmts stmts)
-retInfo name size live_bits cl_type = do
- let liveness = smallLiveness (fromIntegral size) (fromIntegral live_bits)
- info_lbl = mkRtsRetInfoLabelFS name
- (info1,info2) = mkRetInfoTable info_lbl liveness NoC_SRT
- (fromIntegral cl_type)
- return (info_lbl, info1, info2)
-
-stdInfo name ptrs nptrs srt_bitmap cl_type desc_str ty_str =
- basicInfo name (packHalfWordsCLit ptrs nptrs)
- srt_bitmap cl_type desc_str ty_str
-
-conInfo name ptrs nptrs srt_bitmap cl_type desc_str ty_str = do
- (lbl, info1, _) <- basicInfo name (packHalfWordsCLit ptrs nptrs)
- srt_bitmap cl_type desc_str ty_str
- desc_lit <- code $ mkStringCLit desc_str
- let desc_field = makeRelativeRefTo lbl desc_lit
- return (lbl, info1, [desc_field])
-
-basicInfo name layout srt_bitmap cl_type desc_str ty_str = do
+
+profilingInfo desc_str ty_str = do
lit1 <- if opt_SccProfilingOn
then code $ mkStringCLit desc_str
else return (mkIntCLit 0)
lit2 <- if opt_SccProfilingOn
then code $ mkStringCLit ty_str
else return (mkIntCLit 0)
- let info1 = mkStdInfoTable lit1 lit2 (fromIntegral cl_type)
- (fromIntegral srt_bitmap)
- layout
- return (mkRtsInfoLabelFS name, info1, [])
-
-funInfo name ptrs nptrs cl_type desc_str ty_str fun_type = do
- (label,info1,_) <- stdInfo name ptrs nptrs 0{-srt_bitmap-}
- cl_type desc_str ty_str
- let info2 = mkFunGenInfoExtraBits (fromIntegral fun_type) 0 zero zero zero
- -- we leave most of the fields zero here. This is only used
- -- to generate the BCO info table in the RTS at the moment.
- return (label,info1,info2)
- where
- zero = mkIntCLit 0
+ return (ProfilingInfo lit1 lit2)
staticClosure :: FastString -> FastString -> [CmmLit] -> ExtCode
foreignCall
:: String
- -> [ExtFCode (CmmReg,MachHint)]
+ -> [ExtFCode (CmmFormal,MachHint)]
-> ExtFCode CmmExpr
-> [ExtFCode (CmmExpr,MachHint)]
- -> Maybe [GlobalReg] -> P ExtCode
-foreignCall "C" results_code expr_code args_code vols
- = return $ do
- results <- sequence results_code
- expr <- expr_code
- args <- sequence args_code
- code (emitForeignCall' PlayRisky results
- (CmmForeignCall expr CCallConv) args vols)
-foreignCall conv _ _ _ _
- = fail ("unknown calling convention: " ++ conv)
+ -> Maybe [GlobalReg]
+ -> C_SRT
+ -> P ExtCode
+foreignCall conv_string results_code expr_code args_code vols srt
+ = do convention <- case conv_string of
+ "C" -> return CCallConv
+ "C--" -> return CmmCallConv
+ _ -> fail ("unknown calling convention: " ++ conv_string)
+ return $ do
+ results <- sequence results_code
+ expr <- expr_code
+ args <- sequence args_code
+ code (emitForeignCall' PlayRisky results
+ (CmmForeignCall expr convention) args vols srt) where
primCall
- :: [ExtFCode (CmmReg,MachHint)]
+ :: [ExtFCode (CmmFormal,MachHint)]
-> FastString
-> [ExtFCode (CmmExpr,MachHint)]
- -> Maybe [GlobalReg] -> P ExtCode
-primCall results_code name args_code vols
+ -> Maybe [GlobalReg]
+ -> C_SRT
+ -> P ExtCode
+primCall results_code name args_code vols srt
= case lookupUFM callishMachOps name of
Nothing -> fail ("unknown primitive " ++ unpackFS name)
Just p -> return $ do
results <- sequence results_code
args <- sequence args_code
- code (emitForeignCall' PlayRisky results (CmmPrim p) args vols)
+ code (emitForeignCall' PlayRisky results (CmmPrim p) args vols srt)
doStore :: MachRep -> ExtFCode CmmExpr -> ExtFCode CmmExpr -> ExtCode
doStore rep addr_code val_code
emitStmts stmts
when (sp /= 0) $ stmtC (CmmAssign spReg (cmmRegOffW spReg (-sp)))
stmtC (CmmJump (entryCode (CmmLoad (cmmRegOffW spReg sp) wordRep)) [])
+ -- TODO (when using CPS): emitStmt (CmmReturn (map snd args))
-- -----------------------------------------------------------------------------
-- If-then-else and boolean expressions
projects / ghc-hetmet.git / blobdiff