-----------------------------------------------------------------------------
{
+{-# 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
cmmproc :: { ExtCode }
-- TODO: add real SRT/info tables to parsed Cmm
- : info maybe_formals maybe_frame maybe_gc_block '{' body '}'
- { do ((entry_ret_label, info, live, formals, frame, gc_block), stmts) <-
+ : info maybe_formals 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;
formals <- sequence $2;
- frame <- $3;
- gc_block <- $4;
+ gc_block <- $3;
+ frame <- $4;
$6;
- return (entry_ret_label, info, live, formals, frame, gc_block) }
+ return (entry_ret_label, info, live, formals, gc_block, frame) }
blks <- code (cgStmtsToBlocks stmts)
code (emitInfoTableAndCode entry_ret_label (CmmInfo gc_block frame info) formals blks) }
formals <- sequence $2;
code (emitInfoTableAndCode entry_ret_label (CmmInfo Nothing Nothing info) formals []) }
- | NAME maybe_formals maybe_frame maybe_gc_block '{' body '}'
- { do ((formals, frame, gc_block), stmts) <-
+ | NAME maybe_formals maybe_gc_block maybe_frame '{' body '}'
+ { do ((formals, gc_block, frame), stmts) <-
getCgStmtsEC' $ loopDecls $ do {
formals <- sequence $2;
- frame <- $3;
- gc_block <- $4;
+ gc_block <- $3;
+ frame <- $4;
$6;
- return (formals, frame, gc_block) }
+ return (formals, gc_block, frame) }
blks <- code (cgStmtsToBlocks stmts)
code (emitProc (CmmInfo gc_block frame CmmNonInfoTable) (mkRtsCodeLabelFS $1) formals blks) }
[]) }
-- 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
-- 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 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 -> [(CmmExpr,MachHint)] -> 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 (e,_) = max wORD_SIZE (machRepByteWidth (cmmExprRep e))
+ -- c.f. CgForeignCall.emitForeignCall
+#endif
+adjCallTarget _ expr _
+ = expr
+
primCall
:: [ExtFCode (CmmFormal,MachHint)]
-> FastString