X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2Fcmm%2FCmmParse.y;h=4690f6989c9f8ba491814668498c44774578f213;hb=9c4b3b77b7c1e07031326ddfd6c60997d3397e6d;hp=5908314c870a2f5cf60e63004216a835b9f5ca1d;hpb=b7cadd88aa32661c623f862a3aabc513a0e9f5c3;p=ghc-hetmet.git diff --git a/compiler/cmm/CmmParse.y b/compiler/cmm/CmmParse.y index 5908314..4690f69 100644 --- a/compiler/cmm/CmmParse.y +++ b/compiler/cmm/CmmParse.y @@ -1,6 +1,6 @@ ----------------------------------------------------------------------------- -- --- (c) The University of Glasgow, 2004 +-- (c) The University of Glasgow, 2004-2006 -- -- Parser for concrete Cmm. -- @@ -16,39 +16,39 @@ import CgProf import CgTicky import CgInfoTbls import CgForeignCall -import CgTailCall ( pushUnboxedTuple ) -import CgStackery ( emitPushUpdateFrame ) -import ClosureInfo ( C_SRT(..) ) -import CgCallConv ( smallLiveness ) -import CgClosure ( emitBlackHoleCode ) -import CostCentre ( dontCareCCS ) +import CgTailCall +import CgStackery +import ClosureInfo +import CgCallConv +import CgClosure +import CostCentre import Cmm import PprCmm -import CmmUtils ( mkIntCLit ) +import CmmUtils import CmmLex import CLabel import MachOp -import SMRep ( fixedHdrSize, CgRep(..) ) +import SMRep import Lexer -import ForeignCall ( CCallConv(..), Safety(..) ) -import Literal ( mkMachInt ) +import ForeignCall +import Literal import Unique import UniqFM import SrcLoc -import DynFlags ( DynFlags, DynFlag(..) ) -import Packages ( HomeModules ) -import StaticFlags ( opt_SccProfilingOn ) -import ErrUtils ( printError, dumpIfSet_dyn, showPass ) -import StringBuffer ( hGetStringBuffer ) +import DynFlags +import StaticFlags +import ErrUtils +import StringBuffer import FastString -import Panic ( panic ) -import Constants ( wORD_SIZE ) +import Panic +import Constants import Outputable -import Monad ( when ) +import Control.Monad import Data.Char ( ord ) +import System.Exit #include "HsVersions.h" } @@ -104,6 +104,7 @@ import Data.Char ( ord ) '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) } @@ -224,18 +225,14 @@ info :: { ExtFCode (CLabel, [CmmLit],[CmmLit]) } | 'INFO_TABLE_CONSTR' '(' NAME ',' INT ',' INT ',' INT ',' INT ',' STRING ',' STRING ')' -- ptrs, nptrs, tag, closure type, description, type - { stdInfo $3 $5 $7 $9 $11 $13 $15 } + { conInfo $3 $5 $7 $9 $11 $13 $15 } | '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 maybe_vec ')' - { retInfo $3 $5 $7 $9 $10 } - -maybe_vec :: { [CmmLit] } - : {- empty -} { [] } - | ',' NAME maybe_vec { CmmLabel (mkRtsCodeLabelFS $2) : $3 } + | 'INFO_TABLE_RET' '(' NAME ',' INT ',' INT ',' INT ')' + { retInfo $3 $5 $7 $9 } body :: { ExtCode } : {- empty -} { return () } @@ -257,24 +254,16 @@ stmt :: { ExtCode } | NAME ':' { do l <- newLabel $1; code (labelC l) } - | lreg '=' expr ';' - { do reg <- $1; e <- $3; stmtEC (CmmAssign reg e) } +-- HACK: this should just be lregs but that causes a shift/reduce conflict +-- with foreign calls + | hint_lregs '=' expr ';' + { do reg <- head $1; e <- $3; stmtEC (CmmAssign (fst 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 } + | maybe_results 'foreign' STRING expr '(' hint_exprs0 ')' vols ';' + {% foreignCall $3 $1 $4 $6 $8 } + | maybe_results 'prim' '%' NAME '(' hint_exprs0 ')' vols ';' + {% primCall $1 $4 $6 $8 } -- stmt-level macros, stealing syntax from ordinary C-- function calls. -- Perhaps we ought to use the %%-form? | NAME '(' exprs0 ')' ';' @@ -283,8 +272,10 @@ stmt :: { ExtCode } { 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 } @@ -376,6 +367,10 @@ maybe_ty :: { MachRep } : {- empty -} { wordRep } | '::' type { $2 } +maybe_actuals :: { [ExtFCode (CmmExpr, MachHint)] } + : {- empty -} { [] } + | '(' hint_exprs0 ')' { $2 } + hint_exprs0 :: { [ExtFCode (CmmExpr, MachHint)] } : {- empty -} { [] } | hint_exprs { $1 } @@ -402,6 +397,21 @@ reg :: { ExtFCode CmmExpr } : NAME { lookupName $1 } | GLOBALREG { return (CmmReg (CmmGlobal $1)) } +maybe_results :: { [ExtFCode (CmmReg, MachHint)] } + : {- empty -} { [] } + | hint_lregs '=' { $1 } + +hint_lregs :: { [ExtFCode (CmmReg, MachHint)] } + : hint_lreg ',' { [$1] } + | hint_lreg { [$1] } + | hint_lreg ',' hint_lregs { $1 : $3 } + +hint_lreg :: { ExtFCode (CmmReg, MachHint) } + : lreg { do e <- $1; return (e, inferHint (CmmReg e)) } + | STRING lreg {% do h <- parseHint $1; + return $ do + e <- $2; return (e,h) } + lreg :: { ExtFCode CmmReg } : NAME { do e <- lookupName $1; return $ @@ -425,6 +435,7 @@ section :: String -> Section section "text" = Text section "data" = Data section "rodata" = ReadOnlyData +section "relrodata" = RelocatableReadOnlyData section "bss" = UninitialisedData section s = OtherSection s @@ -472,8 +483,7 @@ exprMacros = listToUFM [ ( FSLIT("GET_FUN_INFO"), \ [x] -> funInfoTable (closureInfoPtr x) ), ( FSLIT("INFO_TYPE"), \ [x] -> infoTableClosureType x ), ( FSLIT("INFO_PTRS"), \ [x] -> infoTablePtrs x ), - ( FSLIT("INFO_NPTRS"), \ [x] -> infoTableNonPtrs x ), - ( FSLIT("RET_VEC"), \ [info, conZ] -> retVec info conZ ) + ( FSLIT("INFO_NPTRS"), \ [x] -> infoTableNonPtrs x ) ] -- we understand a subset of C-- primitives: @@ -529,9 +539,9 @@ machOps = listToUFM $ ( "f2f32", flip MO_S_Conv F32 ), -- TODO; rounding mode ( "f2f64", flip MO_S_Conv F64 ), -- TODO; rounding mode ( "f2i8", flip MO_S_Conv I8 ), - ( "f2i16", flip MO_S_Conv I8 ), - ( "f2i32", flip MO_S_Conv I8 ), - ( "f2i64", flip MO_S_Conv I8 ), + ( "f2i16", flip MO_S_Conv I16 ), + ( "f2i32", flip MO_S_Conv I32 ), + ( "f2i64", flip MO_S_Conv I64 ), ( "i2f32", flip MO_S_Conv F32 ), ( "i2f64", flip MO_S_Conv F64 ) ] @@ -611,6 +621,7 @@ stmtMacros = listToUFM [ ( FSLIT("RET_NN"), \[a,b] -> emitRetUT [(NonPtrArg,a),(NonPtrArg,b)]), ( FSLIT("RET_NP"), \[a,b] -> emitRetUT [(NonPtrArg,a),(PtrArg,b)]), ( FSLIT("RET_PPP"), \[a,b,c] -> emitRetUT [(PtrArg,a),(PtrArg,b),(PtrArg,c)]), + ( FSLIT("RET_NPP"), \[a,b,c] -> emitRetUT [(NonPtrArg,a),(PtrArg,b),(PtrArg,c)]), ( FSLIT("RET_NNP"), \[a,b,c] -> emitRetUT [(NonPtrArg,a),(NonPtrArg,b),(PtrArg,c)]), ( FSLIT("RET_NNNP"), \[a,b,c,d] -> emitRetUT [(NonPtrArg,a),(NonPtrArg,b),(NonPtrArg,c),(PtrArg,d)]), ( FSLIT("RET_NPNP"), \[a,b,c,d] -> emitRetUT [(NonPtrArg,a),(PtrArg,b),(NonPtrArg,c),(PtrArg,d)]) @@ -708,28 +719,38 @@ forkLabelledCodeEC ec = do stmts <- getCgStmtsEC ec code (forkCgStmts stmts) -retInfo name size live_bits cl_type vector = do +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) vector + (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 + let info_lbl = mkRtsInfoLabelFS name lit1 <- if opt_SccProfilingOn - then code $ mkStringCLit desc_str + then code $ do lit <- mkStringCLit desc_str + return (makeRelativeRefTo info_lbl lit) else return (mkIntCLit 0) lit2 <- if opt_SccProfilingOn - then code $ mkStringCLit ty_str + then code $ do lit <- mkStringCLit ty_str + return (makeRelativeRefTo info_lbl lit) else return (mkIntCLit 0) let info1 = mkStdInfoTable lit1 lit2 (fromIntegral cl_type) (fromIntegral srt_bitmap) layout - return (mkRtsInfoLabelFS name, info1, []) + return (info_lbl, info1, []) funInfo name ptrs nptrs cl_type desc_str ty_str fun_type = do (label,info1,_) <- stdInfo name ptrs nptrs 0{-srt_bitmap-} @@ -753,15 +774,17 @@ foreignCall -> 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) +foreignCall conv_string results_code expr_code args_code vols + = 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) where primCall :: [ExtFCode (CmmReg,MachHint)] @@ -907,8 +930,8 @@ initEnv = listToUFM [ Var (CmmLit (CmmInt (fromIntegral stdInfoTableSizeB) wordRep) )) ] -parseCmmFile :: DynFlags -> HomeModules -> FilePath -> IO (Maybe Cmm) -parseCmmFile dflags hmods filename = do +parseCmmFile :: DynFlags -> FilePath -> IO (Maybe Cmm) +parseCmmFile dflags filename = do showPass dflags "ParseCmm" buf <- hGetStringBuffer filename let @@ -918,9 +941,12 @@ parseCmmFile dflags hmods filename = do -- in there we don't want. case unP cmmParse init_state of PFailed span err -> do printError span err; return Nothing - POk _ code -> do - cmm <- initC dflags hmods no_module (getCmm (unEC code initEnv [] >> return ())) - dumpIfSet_dyn dflags Opt_D_dump_cmm "Cmm" (pprCmms [cmm]) + POk pst code -> do + cmm <- initC dflags no_module (getCmm (unEC code initEnv [] >> return ())) + let ms = getMessages pst + printErrorsAndWarnings dflags ms + when (errorsFound dflags ms) $ exitWith (ExitFailure 1) + dumpIfSet_dyn dflags Opt_D_dump_cmm "Cmm" (pprCmms [cmm]) return (Just cmm) where no_module = panic "parseCmmFile: no module"